diff --git a/.github/workflows/go.yml b/.github/workflows/go.yml index 6a9b57f..07fc106 100644 --- a/.github/workflows/go.yml +++ b/.github/workflows/go.yml @@ -9,7 +9,7 @@ jobs: build: strategy: matrix: - go-versions: [1.13.x, 1.14.x, 1.15.x] + go-versions: [1.13.x, 1.14.x, 1.15.x, 1.16.x, 1.17.x] runs-on: ubuntu-latest steps: - uses: actions/checkout@v2 diff --git a/fields.go b/fields.go index 235b7f2..f3c9079 100644 --- a/fields.go +++ b/fields.go @@ -16,53 +16,53 @@ import ( "unicode/utf8" ) -// indirect walks down v allocating pointers as needed, +// indirect walks down 'value' allocating pointers as needed, // until it gets to a non-pointer. // if it encounters an Unmarshaler, indirect stops and returns that. // if decodingNull is true, indirect stops at the last pointer so it can be set to nil. -func indirect(v reflect.Value, decodingNull bool) (json.Unmarshaler, encoding.TextUnmarshaler, reflect.Value) { - // If v is a named type and is addressable, +func indirect(value reflect.Value, decodingNull bool) (json.Unmarshaler, encoding.TextUnmarshaler, reflect.Value) { + // If 'value' is a named type and is addressable, // start with its address, so that if the type has pointer methods, // we find them. - if v.Kind() != reflect.Ptr && v.Type().Name() != "" && v.CanAddr() { - v = v.Addr() + if value.Kind() != reflect.Ptr && value.Type().Name() != "" && value.CanAddr() { + value = value.Addr() } for { // Load value from interface, but only if the result will be // usefully addressable. - if v.Kind() == reflect.Interface && !v.IsNil() { - e := v.Elem() - if e.Kind() == reflect.Ptr && !e.IsNil() && (!decodingNull || e.Elem().Kind() == reflect.Ptr) { - v = e + if value.Kind() == reflect.Interface && !value.IsNil() { + element := value.Elem() + if element.Kind() == reflect.Ptr && !element.IsNil() && (!decodingNull || element.Elem().Kind() == reflect.Ptr) { + value = element continue } } - if v.Kind() != reflect.Ptr { + if value.Kind() != reflect.Ptr { break } - if v.Elem().Kind() != reflect.Ptr && decodingNull && v.CanSet() { + if value.Elem().Kind() != reflect.Ptr && decodingNull && value.CanSet() { break } - if v.IsNil() { - if v.CanSet() { - v.Set(reflect.New(v.Type().Elem())) + if value.IsNil() { + if value.CanSet() { + value.Set(reflect.New(value.Type().Elem())) } else { - v = reflect.New(v.Type().Elem()) + value = reflect.New(value.Type().Elem()) } } - if v.Type().NumMethod() > 0 { - if u, ok := v.Interface().(json.Unmarshaler); ok { + if value.Type().NumMethod() > 0 { + if u, ok := value.Interface().(json.Unmarshaler); ok { return u, nil, reflect.Value{} } - if u, ok := v.Interface().(encoding.TextUnmarshaler); ok { + if u, ok := value.Interface().(encoding.TextUnmarshaler); ok { return nil, u, reflect.Value{} } } - v = v.Elem() + value = value.Elem() } - return nil, nil, v + return nil, nil, value } // A field represents a single field found in a struct. @@ -134,8 +134,8 @@ func typeFields(t reflect.Type) []field { next := []field{{typ: t}} // Count of queued names for current level and the next. - count := map[reflect.Type]int{} - nextCount := map[reflect.Type]int{} + var count map[reflect.Type]int + var nextCount map[reflect.Type]int // Types already visited at an earlier level. visited := map[reflect.Type]bool{} @@ -420,10 +420,8 @@ func equalFoldRight(s, t []byte) bool { t = t[size:] } - if len(t) > 0 { - return false - } - return true + + return len(t) <= 0 } // asciiEqualFold is a specialization of bytes.EqualFold for use when diff --git a/vendor/github.com/davecgh/go-spew/LICENSE b/vendor/github.com/davecgh/go-spew/LICENSE deleted file mode 100644 index bc52e96..0000000 --- a/vendor/github.com/davecgh/go-spew/LICENSE +++ /dev/null @@ -1,15 +0,0 @@ -ISC License - -Copyright (c) 2012-2016 Dave Collins - -Permission to use, copy, modify, and/or distribute this software for any -purpose with or without fee is hereby granted, provided that the above -copyright notice and this permission notice appear in all copies. - -THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES -WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF -MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR -ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES -WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN -ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF -OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. diff --git a/vendor/github.com/davecgh/go-spew/spew/bypass.go b/vendor/github.com/davecgh/go-spew/spew/bypass.go deleted file mode 100644 index 7929947..0000000 --- a/vendor/github.com/davecgh/go-spew/spew/bypass.go +++ /dev/null @@ -1,145 +0,0 @@ -// Copyright (c) 2015-2016 Dave Collins -// -// Permission to use, copy, modify, and distribute this software for any -// purpose with or without fee is hereby granted, provided that the above -// copyright notice and this permission notice appear in all copies. -// -// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES -// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF -// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR -// ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES -// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN -// ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF -// OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. - -// NOTE: Due to the following build constraints, this file will only be compiled -// when the code is not running on Google App Engine, compiled by GopherJS, and -// "-tags safe" is not added to the go build command line. The "disableunsafe" -// tag is deprecated and thus should not be used. -// Go versions prior to 1.4 are disabled because they use a different layout -// for interfaces which make the implementation of unsafeReflectValue more complex. -// +build !js,!appengine,!safe,!disableunsafe,go1.4 - -package spew - -import ( - "reflect" - "unsafe" -) - -const ( - // UnsafeDisabled is a build-time constant which specifies whether or - // not access to the unsafe package is available. - UnsafeDisabled = false - - // ptrSize is the size of a pointer on the current arch. - ptrSize = unsafe.Sizeof((*byte)(nil)) -) - -type flag uintptr - -var ( - // flagRO indicates whether the value field of a reflect.Value - // is read-only. - flagRO flag - - // flagAddr indicates whether the address of the reflect.Value's - // value may be taken. - flagAddr flag -) - -// flagKindMask holds the bits that make up the kind -// part of the flags field. In all the supported versions, -// it is in the lower 5 bits. -const flagKindMask = flag(0x1f) - -// Different versions of Go have used different -// bit layouts for the flags type. This table -// records the known combinations. -var okFlags = []struct { - ro, addr flag -}{{ - // From Go 1.4 to 1.5 - ro: 1 << 5, - addr: 1 << 7, -}, { - // Up to Go tip. - ro: 1<<5 | 1<<6, - addr: 1 << 8, -}} - -var flagValOffset = func() uintptr { - field, ok := reflect.TypeOf(reflect.Value{}).FieldByName("flag") - if !ok { - panic("reflect.Value has no flag field") - } - return field.Offset -}() - -// flagField returns a pointer to the flag field of a reflect.Value. -func flagField(v *reflect.Value) *flag { - return (*flag)(unsafe.Pointer(uintptr(unsafe.Pointer(v)) + flagValOffset)) -} - -// unsafeReflectValue converts the passed reflect.Value into a one that bypasses -// the typical safety restrictions preventing access to unaddressable and -// unexported data. It works by digging the raw pointer to the underlying -// value out of the protected value and generating a new unprotected (unsafe) -// reflect.Value to it. -// -// This allows us to check for implementations of the Stringer and error -// interfaces to be used for pretty printing ordinarily unaddressable and -// inaccessible values such as unexported struct fields. -func unsafeReflectValue(v reflect.Value) reflect.Value { - if !v.IsValid() || (v.CanInterface() && v.CanAddr()) { - return v - } - flagFieldPtr := flagField(&v) - *flagFieldPtr &^= flagRO - *flagFieldPtr |= flagAddr - return v -} - -// Sanity checks against future reflect package changes -// to the type or semantics of the Value.flag field. -func init() { - field, ok := reflect.TypeOf(reflect.Value{}).FieldByName("flag") - if !ok { - panic("reflect.Value has no flag field") - } - if field.Type.Kind() != reflect.TypeOf(flag(0)).Kind() { - panic("reflect.Value flag field has changed kind") - } - type t0 int - var t struct { - A t0 - // t0 will have flagEmbedRO set. - t0 - // a will have flagStickyRO set - a t0 - } - vA := reflect.ValueOf(t).FieldByName("A") - va := reflect.ValueOf(t).FieldByName("a") - vt0 := reflect.ValueOf(t).FieldByName("t0") - - // Infer flagRO from the difference between the flags - // for the (otherwise identical) fields in t. - flagPublic := *flagField(&vA) - flagWithRO := *flagField(&va) | *flagField(&vt0) - flagRO = flagPublic ^ flagWithRO - - // Infer flagAddr from the difference between a value - // taken from a pointer and not. - vPtrA := reflect.ValueOf(&t).Elem().FieldByName("A") - flagNoPtr := *flagField(&vA) - flagPtr := *flagField(&vPtrA) - flagAddr = flagNoPtr ^ flagPtr - - // Check that the inferred flags tally with one of the known versions. - for _, f := range okFlags { - if flagRO == f.ro && flagAddr == f.addr { - return - } - } - panic("reflect.Value read-only flag has changed semantics") -} diff --git a/vendor/github.com/davecgh/go-spew/spew/bypasssafe.go b/vendor/github.com/davecgh/go-spew/spew/bypasssafe.go deleted file mode 100644 index 205c28d..0000000 --- a/vendor/github.com/davecgh/go-spew/spew/bypasssafe.go +++ /dev/null @@ -1,38 +0,0 @@ -// Copyright (c) 2015-2016 Dave Collins -// -// Permission to use, copy, modify, and distribute this software for any -// purpose with or without fee is hereby granted, provided that the above -// copyright notice and this permission notice appear in all copies. -// -// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES -// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF -// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR -// ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES -// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN -// ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF -// OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. - -// NOTE: Due to the following build constraints, this file will only be compiled -// when the code is running on Google App Engine, compiled by GopherJS, or -// "-tags safe" is added to the go build command line. The "disableunsafe" -// tag is deprecated and thus should not be used. -// +build js appengine safe disableunsafe !go1.4 - -package spew - -import "reflect" - -const ( - // UnsafeDisabled is a build-time constant which specifies whether or - // not access to the unsafe package is available. - UnsafeDisabled = true -) - -// unsafeReflectValue typically converts the passed reflect.Value into a one -// that bypasses the typical safety restrictions preventing access to -// unaddressable and unexported data. However, doing this relies on access to -// the unsafe package. This is a stub version which simply returns the passed -// reflect.Value when the unsafe package is not available. -func unsafeReflectValue(v reflect.Value) reflect.Value { - return v -} diff --git a/vendor/github.com/davecgh/go-spew/spew/common.go b/vendor/github.com/davecgh/go-spew/spew/common.go deleted file mode 100644 index 1be8ce9..0000000 --- a/vendor/github.com/davecgh/go-spew/spew/common.go +++ /dev/null @@ -1,341 +0,0 @@ -/* - * Copyright (c) 2013-2016 Dave Collins - * - * Permission to use, copy, modify, and distribute this software for any - * purpose with or without fee is hereby granted, provided that the above - * copyright notice and this permission notice appear in all copies. - * - * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES - * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR - * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES - * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN - * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF - * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. - */ - -package spew - -import ( - "bytes" - "fmt" - "io" - "reflect" - "sort" - "strconv" -) - -// Some constants in the form of bytes to avoid string overhead. This mirrors -// the technique used in the fmt package. -var ( - panicBytes = []byte("(PANIC=") - plusBytes = []byte("+") - iBytes = []byte("i") - trueBytes = []byte("true") - falseBytes = []byte("false") - interfaceBytes = []byte("(interface {})") - commaNewlineBytes = []byte(",\n") - newlineBytes = []byte("\n") - openBraceBytes = []byte("{") - openBraceNewlineBytes = []byte("{\n") - closeBraceBytes = []byte("}") - asteriskBytes = []byte("*") - colonBytes = []byte(":") - colonSpaceBytes = []byte(": ") - openParenBytes = []byte("(") - closeParenBytes = []byte(")") - spaceBytes = []byte(" ") - pointerChainBytes = []byte("->") - nilAngleBytes = []byte("") - maxNewlineBytes = []byte("\n") - maxShortBytes = []byte("") - circularBytes = []byte("") - circularShortBytes = []byte("") - invalidAngleBytes = []byte("") - openBracketBytes = []byte("[") - closeBracketBytes = []byte("]") - percentBytes = []byte("%") - precisionBytes = []byte(".") - openAngleBytes = []byte("<") - closeAngleBytes = []byte(">") - openMapBytes = []byte("map[") - closeMapBytes = []byte("]") - lenEqualsBytes = []byte("len=") - capEqualsBytes = []byte("cap=") -) - -// hexDigits is used to map a decimal value to a hex digit. -var hexDigits = "0123456789abcdef" - -// catchPanic handles any panics that might occur during the handleMethods -// calls. -func catchPanic(w io.Writer, v reflect.Value) { - if err := recover(); err != nil { - w.Write(panicBytes) - fmt.Fprintf(w, "%v", err) - w.Write(closeParenBytes) - } -} - -// handleMethods attempts to call the Error and String methods on the underlying -// type the passed reflect.Value represents and outputes the result to Writer w. -// -// It handles panics in any called methods by catching and displaying the error -// as the formatted value. -func handleMethods(cs *ConfigState, w io.Writer, v reflect.Value) (handled bool) { - // We need an interface to check if the type implements the error or - // Stringer interface. However, the reflect package won't give us an - // interface on certain things like unexported struct fields in order - // to enforce visibility rules. We use unsafe, when it's available, - // to bypass these restrictions since this package does not mutate the - // values. - if !v.CanInterface() { - if UnsafeDisabled { - return false - } - - v = unsafeReflectValue(v) - } - - // Choose whether or not to do error and Stringer interface lookups against - // the base type or a pointer to the base type depending on settings. - // Technically calling one of these methods with a pointer receiver can - // mutate the value, however, types which choose to satisify an error or - // Stringer interface with a pointer receiver should not be mutating their - // state inside these interface methods. - if !cs.DisablePointerMethods && !UnsafeDisabled && !v.CanAddr() { - v = unsafeReflectValue(v) - } - if v.CanAddr() { - v = v.Addr() - } - - // Is it an error or Stringer? - switch iface := v.Interface().(type) { - case error: - defer catchPanic(w, v) - if cs.ContinueOnMethod { - w.Write(openParenBytes) - w.Write([]byte(iface.Error())) - w.Write(closeParenBytes) - w.Write(spaceBytes) - return false - } - - w.Write([]byte(iface.Error())) - return true - - case fmt.Stringer: - defer catchPanic(w, v) - if cs.ContinueOnMethod { - w.Write(openParenBytes) - w.Write([]byte(iface.String())) - w.Write(closeParenBytes) - w.Write(spaceBytes) - return false - } - w.Write([]byte(iface.String())) - return true - } - return false -} - -// printBool outputs a boolean value as true or false to Writer w. -func printBool(w io.Writer, val bool) { - if val { - w.Write(trueBytes) - } else { - w.Write(falseBytes) - } -} - -// printInt outputs a signed integer value to Writer w. -func printInt(w io.Writer, val int64, base int) { - w.Write([]byte(strconv.FormatInt(val, base))) -} - -// printUint outputs an unsigned integer value to Writer w. -func printUint(w io.Writer, val uint64, base int) { - w.Write([]byte(strconv.FormatUint(val, base))) -} - -// printFloat outputs a floating point value using the specified precision, -// which is expected to be 32 or 64bit, to Writer w. -func printFloat(w io.Writer, val float64, precision int) { - w.Write([]byte(strconv.FormatFloat(val, 'g', -1, precision))) -} - -// printComplex outputs a complex value using the specified float precision -// for the real and imaginary parts to Writer w. -func printComplex(w io.Writer, c complex128, floatPrecision int) { - r := real(c) - w.Write(openParenBytes) - w.Write([]byte(strconv.FormatFloat(r, 'g', -1, floatPrecision))) - i := imag(c) - if i >= 0 { - w.Write(plusBytes) - } - w.Write([]byte(strconv.FormatFloat(i, 'g', -1, floatPrecision))) - w.Write(iBytes) - w.Write(closeParenBytes) -} - -// printHexPtr outputs a uintptr formatted as hexadecimal with a leading '0x' -// prefix to Writer w. -func printHexPtr(w io.Writer, p uintptr) { - // Null pointer. - num := uint64(p) - if num == 0 { - w.Write(nilAngleBytes) - return - } - - // Max uint64 is 16 bytes in hex + 2 bytes for '0x' prefix - buf := make([]byte, 18) - - // It's simpler to construct the hex string right to left. - base := uint64(16) - i := len(buf) - 1 - for num >= base { - buf[i] = hexDigits[num%base] - num /= base - i-- - } - buf[i] = hexDigits[num] - - // Add '0x' prefix. - i-- - buf[i] = 'x' - i-- - buf[i] = '0' - - // Strip unused leading bytes. - buf = buf[i:] - w.Write(buf) -} - -// valuesSorter implements sort.Interface to allow a slice of reflect.Value -// elements to be sorted. -type valuesSorter struct { - values []reflect.Value - strings []string // either nil or same len and values - cs *ConfigState -} - -// newValuesSorter initializes a valuesSorter instance, which holds a set of -// surrogate keys on which the data should be sorted. It uses flags in -// ConfigState to decide if and how to populate those surrogate keys. -func newValuesSorter(values []reflect.Value, cs *ConfigState) sort.Interface { - vs := &valuesSorter{values: values, cs: cs} - if canSortSimply(vs.values[0].Kind()) { - return vs - } - if !cs.DisableMethods { - vs.strings = make([]string, len(values)) - for i := range vs.values { - b := bytes.Buffer{} - if !handleMethods(cs, &b, vs.values[i]) { - vs.strings = nil - break - } - vs.strings[i] = b.String() - } - } - if vs.strings == nil && cs.SpewKeys { - vs.strings = make([]string, len(values)) - for i := range vs.values { - vs.strings[i] = Sprintf("%#v", vs.values[i].Interface()) - } - } - return vs -} - -// canSortSimply tests whether a reflect.Kind is a primitive that can be sorted -// directly, or whether it should be considered for sorting by surrogate keys -// (if the ConfigState allows it). -func canSortSimply(kind reflect.Kind) bool { - // This switch parallels valueSortLess, except for the default case. - switch kind { - case reflect.Bool: - return true - case reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64, reflect.Int: - return true - case reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uint: - return true - case reflect.Float32, reflect.Float64: - return true - case reflect.String: - return true - case reflect.Uintptr: - return true - case reflect.Array: - return true - } - return false -} - -// Len returns the number of values in the slice. It is part of the -// sort.Interface implementation. -func (s *valuesSorter) Len() int { - return len(s.values) -} - -// Swap swaps the values at the passed indices. It is part of the -// sort.Interface implementation. -func (s *valuesSorter) Swap(i, j int) { - s.values[i], s.values[j] = s.values[j], s.values[i] - if s.strings != nil { - s.strings[i], s.strings[j] = s.strings[j], s.strings[i] - } -} - -// valueSortLess returns whether the first value should sort before the second -// value. It is used by valueSorter.Less as part of the sort.Interface -// implementation. -func valueSortLess(a, b reflect.Value) bool { - switch a.Kind() { - case reflect.Bool: - return !a.Bool() && b.Bool() - case reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64, reflect.Int: - return a.Int() < b.Int() - case reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uint: - return a.Uint() < b.Uint() - case reflect.Float32, reflect.Float64: - return a.Float() < b.Float() - case reflect.String: - return a.String() < b.String() - case reflect.Uintptr: - return a.Uint() < b.Uint() - case reflect.Array: - // Compare the contents of both arrays. - l := a.Len() - for i := 0; i < l; i++ { - av := a.Index(i) - bv := b.Index(i) - if av.Interface() == bv.Interface() { - continue - } - return valueSortLess(av, bv) - } - } - return a.String() < b.String() -} - -// Less returns whether the value at index i should sort before the -// value at index j. It is part of the sort.Interface implementation. -func (s *valuesSorter) Less(i, j int) bool { - if s.strings == nil { - return valueSortLess(s.values[i], s.values[j]) - } - return s.strings[i] < s.strings[j] -} - -// sortValues is a sort function that handles both native types and any type that -// can be converted to error or Stringer. Other inputs are sorted according to -// their Value.String() value to ensure display stability. -func sortValues(values []reflect.Value, cs *ConfigState) { - if len(values) == 0 { - return - } - sort.Sort(newValuesSorter(values, cs)) -} diff --git a/vendor/github.com/davecgh/go-spew/spew/config.go b/vendor/github.com/davecgh/go-spew/spew/config.go deleted file mode 100644 index 2e3d22f..0000000 --- a/vendor/github.com/davecgh/go-spew/spew/config.go +++ /dev/null @@ -1,306 +0,0 @@ -/* - * Copyright (c) 2013-2016 Dave Collins - * - * Permission to use, copy, modify, and distribute this software for any - * purpose with or without fee is hereby granted, provided that the above - * copyright notice and this permission notice appear in all copies. - * - * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES - * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR - * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES - * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN - * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF - * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. - */ - -package spew - -import ( - "bytes" - "fmt" - "io" - "os" -) - -// ConfigState houses the configuration options used by spew to format and -// display values. There is a global instance, Config, that is used to control -// all top-level Formatter and Dump functionality. Each ConfigState instance -// provides methods equivalent to the top-level functions. -// -// The zero value for ConfigState provides no indentation. You would typically -// want to set it to a space or a tab. -// -// Alternatively, you can use NewDefaultConfig to get a ConfigState instance -// with default settings. See the documentation of NewDefaultConfig for default -// values. -type ConfigState struct { - // Indent specifies the string to use for each indentation level. The - // global config instance that all top-level functions use set this to a - // single space by default. If you would like more indentation, you might - // set this to a tab with "\t" or perhaps two spaces with " ". - Indent string - - // MaxDepth controls the maximum number of levels to descend into nested - // data structures. The default, 0, means there is no limit. - // - // NOTE: Circular data structures are properly detected, so it is not - // necessary to set this value unless you specifically want to limit deeply - // nested data structures. - MaxDepth int - - // DisableMethods specifies whether or not error and Stringer interfaces are - // invoked for types that implement them. - DisableMethods bool - - // DisablePointerMethods specifies whether or not to check for and invoke - // error and Stringer interfaces on types which only accept a pointer - // receiver when the current type is not a pointer. - // - // NOTE: This might be an unsafe action since calling one of these methods - // with a pointer receiver could technically mutate the value, however, - // in practice, types which choose to satisify an error or Stringer - // interface with a pointer receiver should not be mutating their state - // inside these interface methods. As a result, this option relies on - // access to the unsafe package, so it will not have any effect when - // running in environments without access to the unsafe package such as - // Google App Engine or with the "safe" build tag specified. - DisablePointerMethods bool - - // DisablePointerAddresses specifies whether to disable the printing of - // pointer addresses. This is useful when diffing data structures in tests. - DisablePointerAddresses bool - - // DisableCapacities specifies whether to disable the printing of capacities - // for arrays, slices, maps and channels. This is useful when diffing - // data structures in tests. - DisableCapacities bool - - // ContinueOnMethod specifies whether or not recursion should continue once - // a custom error or Stringer interface is invoked. The default, false, - // means it will print the results of invoking the custom error or Stringer - // interface and return immediately instead of continuing to recurse into - // the internals of the data type. - // - // NOTE: This flag does not have any effect if method invocation is disabled - // via the DisableMethods or DisablePointerMethods options. - ContinueOnMethod bool - - // SortKeys specifies map keys should be sorted before being printed. Use - // this to have a more deterministic, diffable output. Note that only - // native types (bool, int, uint, floats, uintptr and string) and types - // that support the error or Stringer interfaces (if methods are - // enabled) are supported, with other types sorted according to the - // reflect.Value.String() output which guarantees display stability. - SortKeys bool - - // SpewKeys specifies that, as a last resort attempt, map keys should - // be spewed to strings and sorted by those strings. This is only - // considered if SortKeys is true. - SpewKeys bool -} - -// Config is the active configuration of the top-level functions. -// The configuration can be changed by modifying the contents of spew.Config. -var Config = ConfigState{Indent: " "} - -// Errorf is a wrapper for fmt.Errorf that treats each argument as if it were -// passed with a Formatter interface returned by c.NewFormatter. It returns -// the formatted string as a value that satisfies error. See NewFormatter -// for formatting details. -// -// This function is shorthand for the following syntax: -// -// fmt.Errorf(format, c.NewFormatter(a), c.NewFormatter(b)) -func (c *ConfigState) Errorf(format string, a ...interface{}) (err error) { - return fmt.Errorf(format, c.convertArgs(a)...) -} - -// Fprint is a wrapper for fmt.Fprint that treats each argument as if it were -// passed with a Formatter interface returned by c.NewFormatter. It returns -// the number of bytes written and any write error encountered. See -// NewFormatter for formatting details. -// -// This function is shorthand for the following syntax: -// -// fmt.Fprint(w, c.NewFormatter(a), c.NewFormatter(b)) -func (c *ConfigState) Fprint(w io.Writer, a ...interface{}) (n int, err error) { - return fmt.Fprint(w, c.convertArgs(a)...) -} - -// Fprintf is a wrapper for fmt.Fprintf that treats each argument as if it were -// passed with a Formatter interface returned by c.NewFormatter. It returns -// the number of bytes written and any write error encountered. See -// NewFormatter for formatting details. -// -// This function is shorthand for the following syntax: -// -// fmt.Fprintf(w, format, c.NewFormatter(a), c.NewFormatter(b)) -func (c *ConfigState) Fprintf(w io.Writer, format string, a ...interface{}) (n int, err error) { - return fmt.Fprintf(w, format, c.convertArgs(a)...) -} - -// Fprintln is a wrapper for fmt.Fprintln that treats each argument as if it -// passed with a Formatter interface returned by c.NewFormatter. See -// NewFormatter for formatting details. -// -// This function is shorthand for the following syntax: -// -// fmt.Fprintln(w, c.NewFormatter(a), c.NewFormatter(b)) -func (c *ConfigState) Fprintln(w io.Writer, a ...interface{}) (n int, err error) { - return fmt.Fprintln(w, c.convertArgs(a)...) -} - -// Print is a wrapper for fmt.Print that treats each argument as if it were -// passed with a Formatter interface returned by c.NewFormatter. It returns -// the number of bytes written and any write error encountered. See -// NewFormatter for formatting details. -// -// This function is shorthand for the following syntax: -// -// fmt.Print(c.NewFormatter(a), c.NewFormatter(b)) -func (c *ConfigState) Print(a ...interface{}) (n int, err error) { - return fmt.Print(c.convertArgs(a)...) -} - -// Printf is a wrapper for fmt.Printf that treats each argument as if it were -// passed with a Formatter interface returned by c.NewFormatter. It returns -// the number of bytes written and any write error encountered. See -// NewFormatter for formatting details. -// -// This function is shorthand for the following syntax: -// -// fmt.Printf(format, c.NewFormatter(a), c.NewFormatter(b)) -func (c *ConfigState) Printf(format string, a ...interface{}) (n int, err error) { - return fmt.Printf(format, c.convertArgs(a)...) -} - -// Println is a wrapper for fmt.Println that treats each argument as if it were -// passed with a Formatter interface returned by c.NewFormatter. It returns -// the number of bytes written and any write error encountered. See -// NewFormatter for formatting details. -// -// This function is shorthand for the following syntax: -// -// fmt.Println(c.NewFormatter(a), c.NewFormatter(b)) -func (c *ConfigState) Println(a ...interface{}) (n int, err error) { - return fmt.Println(c.convertArgs(a)...) -} - -// Sprint is a wrapper for fmt.Sprint that treats each argument as if it were -// passed with a Formatter interface returned by c.NewFormatter. It returns -// the resulting string. See NewFormatter for formatting details. -// -// This function is shorthand for the following syntax: -// -// fmt.Sprint(c.NewFormatter(a), c.NewFormatter(b)) -func (c *ConfigState) Sprint(a ...interface{}) string { - return fmt.Sprint(c.convertArgs(a)...) -} - -// Sprintf is a wrapper for fmt.Sprintf that treats each argument as if it were -// passed with a Formatter interface returned by c.NewFormatter. It returns -// the resulting string. See NewFormatter for formatting details. -// -// This function is shorthand for the following syntax: -// -// fmt.Sprintf(format, c.NewFormatter(a), c.NewFormatter(b)) -func (c *ConfigState) Sprintf(format string, a ...interface{}) string { - return fmt.Sprintf(format, c.convertArgs(a)...) -} - -// Sprintln is a wrapper for fmt.Sprintln that treats each argument as if it -// were passed with a Formatter interface returned by c.NewFormatter. It -// returns the resulting string. See NewFormatter for formatting details. -// -// This function is shorthand for the following syntax: -// -// fmt.Sprintln(c.NewFormatter(a), c.NewFormatter(b)) -func (c *ConfigState) Sprintln(a ...interface{}) string { - return fmt.Sprintln(c.convertArgs(a)...) -} - -/* -NewFormatter returns a custom formatter that satisfies the fmt.Formatter -interface. As a result, it integrates cleanly with standard fmt package -printing functions. The formatter is useful for inline printing of smaller data -types similar to the standard %v format specifier. - -The custom formatter only responds to the %v (most compact), %+v (adds pointer -addresses), %#v (adds types), and %#+v (adds types and pointer addresses) verb -combinations. Any other verbs such as %x and %q will be sent to the the -standard fmt package for formatting. In addition, the custom formatter ignores -the width and precision arguments (however they will still work on the format -specifiers not handled by the custom formatter). - -Typically this function shouldn't be called directly. It is much easier to make -use of the custom formatter by calling one of the convenience functions such as -c.Printf, c.Println, or c.Printf. -*/ -func (c *ConfigState) NewFormatter(v interface{}) fmt.Formatter { - return newFormatter(c, v) -} - -// Fdump formats and displays the passed arguments to io.Writer w. It formats -// exactly the same as Dump. -func (c *ConfigState) Fdump(w io.Writer, a ...interface{}) { - fdump(c, w, a...) -} - -/* -Dump displays the passed parameters to standard out with newlines, customizable -indentation, and additional debug information such as complete types and all -pointer addresses used to indirect to the final value. It provides the -following features over the built-in printing facilities provided by the fmt -package: - - * Pointers are dereferenced and followed - * Circular data structures are detected and handled properly - * Custom Stringer/error interfaces are optionally invoked, including - on unexported types - * Custom types which only implement the Stringer/error interfaces via - a pointer receiver are optionally invoked when passing non-pointer - variables - * Byte arrays and slices are dumped like the hexdump -C command which - includes offsets, byte values in hex, and ASCII output - -The configuration options are controlled by modifying the public members -of c. See ConfigState for options documentation. - -See Fdump if you would prefer dumping to an arbitrary io.Writer or Sdump to -get the formatted result as a string. -*/ -func (c *ConfigState) Dump(a ...interface{}) { - fdump(c, os.Stdout, a...) -} - -// Sdump returns a string with the passed arguments formatted exactly the same -// as Dump. -func (c *ConfigState) Sdump(a ...interface{}) string { - var buf bytes.Buffer - fdump(c, &buf, a...) - return buf.String() -} - -// convertArgs accepts a slice of arguments and returns a slice of the same -// length with each argument converted to a spew Formatter interface using -// the ConfigState associated with s. -func (c *ConfigState) convertArgs(args []interface{}) (formatters []interface{}) { - formatters = make([]interface{}, len(args)) - for index, arg := range args { - formatters[index] = newFormatter(c, arg) - } - return formatters -} - -// NewDefaultConfig returns a ConfigState with the following default settings. -// -// Indent: " " -// MaxDepth: 0 -// DisableMethods: false -// DisablePointerMethods: false -// ContinueOnMethod: false -// SortKeys: false -func NewDefaultConfig() *ConfigState { - return &ConfigState{Indent: " "} -} diff --git a/vendor/github.com/davecgh/go-spew/spew/doc.go b/vendor/github.com/davecgh/go-spew/spew/doc.go deleted file mode 100644 index aacaac6..0000000 --- a/vendor/github.com/davecgh/go-spew/spew/doc.go +++ /dev/null @@ -1,211 +0,0 @@ -/* - * Copyright (c) 2013-2016 Dave Collins - * - * Permission to use, copy, modify, and distribute this software for any - * purpose with or without fee is hereby granted, provided that the above - * copyright notice and this permission notice appear in all copies. - * - * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES - * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR - * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES - * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN - * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF - * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. - */ - -/* -Package spew implements a deep pretty printer for Go data structures to aid in -debugging. - -A quick overview of the additional features spew provides over the built-in -printing facilities for Go data types are as follows: - - * Pointers are dereferenced and followed - * Circular data structures are detected and handled properly - * Custom Stringer/error interfaces are optionally invoked, including - on unexported types - * Custom types which only implement the Stringer/error interfaces via - a pointer receiver are optionally invoked when passing non-pointer - variables - * Byte arrays and slices are dumped like the hexdump -C command which - includes offsets, byte values in hex, and ASCII output (only when using - Dump style) - -There are two different approaches spew allows for dumping Go data structures: - - * Dump style which prints with newlines, customizable indentation, - and additional debug information such as types and all pointer addresses - used to indirect to the final value - * A custom Formatter interface that integrates cleanly with the standard fmt - package and replaces %v, %+v, %#v, and %#+v to provide inline printing - similar to the default %v while providing the additional functionality - outlined above and passing unsupported format verbs such as %x and %q - along to fmt - -Quick Start - -This section demonstrates how to quickly get started with spew. See the -sections below for further details on formatting and configuration options. - -To dump a variable with full newlines, indentation, type, and pointer -information use Dump, Fdump, or Sdump: - spew.Dump(myVar1, myVar2, ...) - spew.Fdump(someWriter, myVar1, myVar2, ...) - str := spew.Sdump(myVar1, myVar2, ...) - -Alternatively, if you would prefer to use format strings with a compacted inline -printing style, use the convenience wrappers Printf, Fprintf, etc with -%v (most compact), %+v (adds pointer addresses), %#v (adds types), or -%#+v (adds types and pointer addresses): - spew.Printf("myVar1: %v -- myVar2: %+v", myVar1, myVar2) - spew.Printf("myVar3: %#v -- myVar4: %#+v", myVar3, myVar4) - spew.Fprintf(someWriter, "myVar1: %v -- myVar2: %+v", myVar1, myVar2) - spew.Fprintf(someWriter, "myVar3: %#v -- myVar4: %#+v", myVar3, myVar4) - -Configuration Options - -Configuration of spew is handled by fields in the ConfigState type. For -convenience, all of the top-level functions use a global state available -via the spew.Config global. - -It is also possible to create a ConfigState instance that provides methods -equivalent to the top-level functions. This allows concurrent configuration -options. See the ConfigState documentation for more details. - -The following configuration options are available: - * Indent - String to use for each indentation level for Dump functions. - It is a single space by default. A popular alternative is "\t". - - * MaxDepth - Maximum number of levels to descend into nested data structures. - There is no limit by default. - - * DisableMethods - Disables invocation of error and Stringer interface methods. - Method invocation is enabled by default. - - * DisablePointerMethods - Disables invocation of error and Stringer interface methods on types - which only accept pointer receivers from non-pointer variables. - Pointer method invocation is enabled by default. - - * DisablePointerAddresses - DisablePointerAddresses specifies whether to disable the printing of - pointer addresses. This is useful when diffing data structures in tests. - - * DisableCapacities - DisableCapacities specifies whether to disable the printing of - capacities for arrays, slices, maps and channels. This is useful when - diffing data structures in tests. - - * ContinueOnMethod - Enables recursion into types after invoking error and Stringer interface - methods. Recursion after method invocation is disabled by default. - - * SortKeys - Specifies map keys should be sorted before being printed. Use - this to have a more deterministic, diffable output. Note that - only native types (bool, int, uint, floats, uintptr and string) - and types which implement error or Stringer interfaces are - supported with other types sorted according to the - reflect.Value.String() output which guarantees display - stability. Natural map order is used by default. - - * SpewKeys - Specifies that, as a last resort attempt, map keys should be - spewed to strings and sorted by those strings. This is only - considered if SortKeys is true. - -Dump Usage - -Simply call spew.Dump with a list of variables you want to dump: - - spew.Dump(myVar1, myVar2, ...) - -You may also call spew.Fdump if you would prefer to output to an arbitrary -io.Writer. For example, to dump to standard error: - - spew.Fdump(os.Stderr, myVar1, myVar2, ...) - -A third option is to call spew.Sdump to get the formatted output as a string: - - str := spew.Sdump(myVar1, myVar2, ...) - -Sample Dump Output - -See the Dump example for details on the setup of the types and variables being -shown here. - - (main.Foo) { - unexportedField: (*main.Bar)(0xf84002e210)({ - flag: (main.Flag) flagTwo, - data: (uintptr) - }), - ExportedField: (map[interface {}]interface {}) (len=1) { - (string) (len=3) "one": (bool) true - } - } - -Byte (and uint8) arrays and slices are displayed uniquely like the hexdump -C -command as shown. - ([]uint8) (len=32 cap=32) { - 00000000 11 12 13 14 15 16 17 18 19 1a 1b 1c 1d 1e 1f 20 |............... | - 00000010 21 22 23 24 25 26 27 28 29 2a 2b 2c 2d 2e 2f 30 |!"#$%&'()*+,-./0| - 00000020 31 32 |12| - } - -Custom Formatter - -Spew provides a custom formatter that implements the fmt.Formatter interface -so that it integrates cleanly with standard fmt package printing functions. The -formatter is useful for inline printing of smaller data types similar to the -standard %v format specifier. - -The custom formatter only responds to the %v (most compact), %+v (adds pointer -addresses), %#v (adds types), or %#+v (adds types and pointer addresses) verb -combinations. Any other verbs such as %x and %q will be sent to the the -standard fmt package for formatting. In addition, the custom formatter ignores -the width and precision arguments (however they will still work on the format -specifiers not handled by the custom formatter). - -Custom Formatter Usage - -The simplest way to make use of the spew custom formatter is to call one of the -convenience functions such as spew.Printf, spew.Println, or spew.Printf. The -functions have syntax you are most likely already familiar with: - - spew.Printf("myVar1: %v -- myVar2: %+v", myVar1, myVar2) - spew.Printf("myVar3: %#v -- myVar4: %#+v", myVar3, myVar4) - spew.Println(myVar, myVar2) - spew.Fprintf(os.Stderr, "myVar1: %v -- myVar2: %+v", myVar1, myVar2) - spew.Fprintf(os.Stderr, "myVar3: %#v -- myVar4: %#+v", myVar3, myVar4) - -See the Index for the full list convenience functions. - -Sample Formatter Output - -Double pointer to a uint8: - %v: <**>5 - %+v: <**>(0xf8400420d0->0xf8400420c8)5 - %#v: (**uint8)5 - %#+v: (**uint8)(0xf8400420d0->0xf8400420c8)5 - -Pointer to circular struct with a uint8 field and a pointer to itself: - %v: <*>{1 <*>} - %+v: <*>(0xf84003e260){ui8:1 c:<*>(0xf84003e260)} - %#v: (*main.circular){ui8:(uint8)1 c:(*main.circular)} - %#+v: (*main.circular)(0xf84003e260){ui8:(uint8)1 c:(*main.circular)(0xf84003e260)} - -See the Printf example for details on the setup of variables being shown -here. - -Errors - -Since it is possible for custom Stringer/error interfaces to panic, spew -detects them and handles them internally by printing the panic information -inline with the output. Since spew is intended to provide deep pretty printing -capabilities on structures, it intentionally does not return any errors. -*/ -package spew diff --git a/vendor/github.com/davecgh/go-spew/spew/dump.go b/vendor/github.com/davecgh/go-spew/spew/dump.go deleted file mode 100644 index f78d89f..0000000 --- a/vendor/github.com/davecgh/go-spew/spew/dump.go +++ /dev/null @@ -1,509 +0,0 @@ -/* - * Copyright (c) 2013-2016 Dave Collins - * - * Permission to use, copy, modify, and distribute this software for any - * purpose with or without fee is hereby granted, provided that the above - * copyright notice and this permission notice appear in all copies. - * - * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES - * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR - * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES - * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN - * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF - * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. - */ - -package spew - -import ( - "bytes" - "encoding/hex" - "fmt" - "io" - "os" - "reflect" - "regexp" - "strconv" - "strings" -) - -var ( - // uint8Type is a reflect.Type representing a uint8. It is used to - // convert cgo types to uint8 slices for hexdumping. - uint8Type = reflect.TypeOf(uint8(0)) - - // cCharRE is a regular expression that matches a cgo char. - // It is used to detect character arrays to hexdump them. - cCharRE = regexp.MustCompile(`^.*\._Ctype_char$`) - - // cUnsignedCharRE is a regular expression that matches a cgo unsigned - // char. It is used to detect unsigned character arrays to hexdump - // them. - cUnsignedCharRE = regexp.MustCompile(`^.*\._Ctype_unsignedchar$`) - - // cUint8tCharRE is a regular expression that matches a cgo uint8_t. - // It is used to detect uint8_t arrays to hexdump them. - cUint8tCharRE = regexp.MustCompile(`^.*\._Ctype_uint8_t$`) -) - -// dumpState contains information about the state of a dump operation. -type dumpState struct { - w io.Writer - depth int - pointers map[uintptr]int - ignoreNextType bool - ignoreNextIndent bool - cs *ConfigState -} - -// indent performs indentation according to the depth level and cs.Indent -// option. -func (d *dumpState) indent() { - if d.ignoreNextIndent { - d.ignoreNextIndent = false - return - } - d.w.Write(bytes.Repeat([]byte(d.cs.Indent), d.depth)) -} - -// unpackValue returns values inside of non-nil interfaces when possible. -// This is useful for data types like structs, arrays, slices, and maps which -// can contain varying types packed inside an interface. -func (d *dumpState) unpackValue(v reflect.Value) reflect.Value { - if v.Kind() == reflect.Interface && !v.IsNil() { - v = v.Elem() - } - return v -} - -// dumpPtr handles formatting of pointers by indirecting them as necessary. -func (d *dumpState) dumpPtr(v reflect.Value) { - // Remove pointers at or below the current depth from map used to detect - // circular refs. - for k, depth := range d.pointers { - if depth >= d.depth { - delete(d.pointers, k) - } - } - - // Keep list of all dereferenced pointers to show later. - pointerChain := make([]uintptr, 0) - - // Figure out how many levels of indirection there are by dereferencing - // pointers and unpacking interfaces down the chain while detecting circular - // references. - nilFound := false - cycleFound := false - indirects := 0 - ve := v - for ve.Kind() == reflect.Ptr { - if ve.IsNil() { - nilFound = true - break - } - indirects++ - addr := ve.Pointer() - pointerChain = append(pointerChain, addr) - if pd, ok := d.pointers[addr]; ok && pd < d.depth { - cycleFound = true - indirects-- - break - } - d.pointers[addr] = d.depth - - ve = ve.Elem() - if ve.Kind() == reflect.Interface { - if ve.IsNil() { - nilFound = true - break - } - ve = ve.Elem() - } - } - - // Display type information. - d.w.Write(openParenBytes) - d.w.Write(bytes.Repeat(asteriskBytes, indirects)) - d.w.Write([]byte(ve.Type().String())) - d.w.Write(closeParenBytes) - - // Display pointer information. - if !d.cs.DisablePointerAddresses && len(pointerChain) > 0 { - d.w.Write(openParenBytes) - for i, addr := range pointerChain { - if i > 0 { - d.w.Write(pointerChainBytes) - } - printHexPtr(d.w, addr) - } - d.w.Write(closeParenBytes) - } - - // Display dereferenced value. - d.w.Write(openParenBytes) - switch { - case nilFound: - d.w.Write(nilAngleBytes) - - case cycleFound: - d.w.Write(circularBytes) - - default: - d.ignoreNextType = true - d.dump(ve) - } - d.w.Write(closeParenBytes) -} - -// dumpSlice handles formatting of arrays and slices. Byte (uint8 under -// reflection) arrays and slices are dumped in hexdump -C fashion. -func (d *dumpState) dumpSlice(v reflect.Value) { - // Determine whether this type should be hex dumped or not. Also, - // for types which should be hexdumped, try to use the underlying data - // first, then fall back to trying to convert them to a uint8 slice. - var buf []uint8 - doConvert := false - doHexDump := false - numEntries := v.Len() - if numEntries > 0 { - vt := v.Index(0).Type() - vts := vt.String() - switch { - // C types that need to be converted. - case cCharRE.MatchString(vts): - fallthrough - case cUnsignedCharRE.MatchString(vts): - fallthrough - case cUint8tCharRE.MatchString(vts): - doConvert = true - - // Try to use existing uint8 slices and fall back to converting - // and copying if that fails. - case vt.Kind() == reflect.Uint8: - // We need an addressable interface to convert the type - // to a byte slice. However, the reflect package won't - // give us an interface on certain things like - // unexported struct fields in order to enforce - // visibility rules. We use unsafe, when available, to - // bypass these restrictions since this package does not - // mutate the values. - vs := v - if !vs.CanInterface() || !vs.CanAddr() { - vs = unsafeReflectValue(vs) - } - if !UnsafeDisabled { - vs = vs.Slice(0, numEntries) - - // Use the existing uint8 slice if it can be - // type asserted. - iface := vs.Interface() - if slice, ok := iface.([]uint8); ok { - buf = slice - doHexDump = true - break - } - } - - // The underlying data needs to be converted if it can't - // be type asserted to a uint8 slice. - doConvert = true - } - - // Copy and convert the underlying type if needed. - if doConvert && vt.ConvertibleTo(uint8Type) { - // Convert and copy each element into a uint8 byte - // slice. - buf = make([]uint8, numEntries) - for i := 0; i < numEntries; i++ { - vv := v.Index(i) - buf[i] = uint8(vv.Convert(uint8Type).Uint()) - } - doHexDump = true - } - } - - // Hexdump the entire slice as needed. - if doHexDump { - indent := strings.Repeat(d.cs.Indent, d.depth) - str := indent + hex.Dump(buf) - str = strings.Replace(str, "\n", "\n"+indent, -1) - str = strings.TrimRight(str, d.cs.Indent) - d.w.Write([]byte(str)) - return - } - - // Recursively call dump for each item. - for i := 0; i < numEntries; i++ { - d.dump(d.unpackValue(v.Index(i))) - if i < (numEntries - 1) { - d.w.Write(commaNewlineBytes) - } else { - d.w.Write(newlineBytes) - } - } -} - -// dump is the main workhorse for dumping a value. It uses the passed reflect -// value to figure out what kind of object we are dealing with and formats it -// appropriately. It is a recursive function, however circular data structures -// are detected and handled properly. -func (d *dumpState) dump(v reflect.Value) { - // Handle invalid reflect values immediately. - kind := v.Kind() - if kind == reflect.Invalid { - d.w.Write(invalidAngleBytes) - return - } - - // Handle pointers specially. - if kind == reflect.Ptr { - d.indent() - d.dumpPtr(v) - return - } - - // Print type information unless already handled elsewhere. - if !d.ignoreNextType { - d.indent() - d.w.Write(openParenBytes) - d.w.Write([]byte(v.Type().String())) - d.w.Write(closeParenBytes) - d.w.Write(spaceBytes) - } - d.ignoreNextType = false - - // Display length and capacity if the built-in len and cap functions - // work with the value's kind and the len/cap itself is non-zero. - valueLen, valueCap := 0, 0 - switch v.Kind() { - case reflect.Array, reflect.Slice, reflect.Chan: - valueLen, valueCap = v.Len(), v.Cap() - case reflect.Map, reflect.String: - valueLen = v.Len() - } - if valueLen != 0 || !d.cs.DisableCapacities && valueCap != 0 { - d.w.Write(openParenBytes) - if valueLen != 0 { - d.w.Write(lenEqualsBytes) - printInt(d.w, int64(valueLen), 10) - } - if !d.cs.DisableCapacities && valueCap != 0 { - if valueLen != 0 { - d.w.Write(spaceBytes) - } - d.w.Write(capEqualsBytes) - printInt(d.w, int64(valueCap), 10) - } - d.w.Write(closeParenBytes) - d.w.Write(spaceBytes) - } - - // Call Stringer/error interfaces if they exist and the handle methods flag - // is enabled - if !d.cs.DisableMethods { - if (kind != reflect.Invalid) && (kind != reflect.Interface) { - if handled := handleMethods(d.cs, d.w, v); handled { - return - } - } - } - - switch kind { - case reflect.Invalid: - // Do nothing. We should never get here since invalid has already - // been handled above. - - case reflect.Bool: - printBool(d.w, v.Bool()) - - case reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64, reflect.Int: - printInt(d.w, v.Int(), 10) - - case reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uint: - printUint(d.w, v.Uint(), 10) - - case reflect.Float32: - printFloat(d.w, v.Float(), 32) - - case reflect.Float64: - printFloat(d.w, v.Float(), 64) - - case reflect.Complex64: - printComplex(d.w, v.Complex(), 32) - - case reflect.Complex128: - printComplex(d.w, v.Complex(), 64) - - case reflect.Slice: - if v.IsNil() { - d.w.Write(nilAngleBytes) - break - } - fallthrough - - case reflect.Array: - d.w.Write(openBraceNewlineBytes) - d.depth++ - if (d.cs.MaxDepth != 0) && (d.depth > d.cs.MaxDepth) { - d.indent() - d.w.Write(maxNewlineBytes) - } else { - d.dumpSlice(v) - } - d.depth-- - d.indent() - d.w.Write(closeBraceBytes) - - case reflect.String: - d.w.Write([]byte(strconv.Quote(v.String()))) - - case reflect.Interface: - // The only time we should get here is for nil interfaces due to - // unpackValue calls. - if v.IsNil() { - d.w.Write(nilAngleBytes) - } - - case reflect.Ptr: - // Do nothing. We should never get here since pointers have already - // been handled above. - - case reflect.Map: - // nil maps should be indicated as different than empty maps - if v.IsNil() { - d.w.Write(nilAngleBytes) - break - } - - d.w.Write(openBraceNewlineBytes) - d.depth++ - if (d.cs.MaxDepth != 0) && (d.depth > d.cs.MaxDepth) { - d.indent() - d.w.Write(maxNewlineBytes) - } else { - numEntries := v.Len() - keys := v.MapKeys() - if d.cs.SortKeys { - sortValues(keys, d.cs) - } - for i, key := range keys { - d.dump(d.unpackValue(key)) - d.w.Write(colonSpaceBytes) - d.ignoreNextIndent = true - d.dump(d.unpackValue(v.MapIndex(key))) - if i < (numEntries - 1) { - d.w.Write(commaNewlineBytes) - } else { - d.w.Write(newlineBytes) - } - } - } - d.depth-- - d.indent() - d.w.Write(closeBraceBytes) - - case reflect.Struct: - d.w.Write(openBraceNewlineBytes) - d.depth++ - if (d.cs.MaxDepth != 0) && (d.depth > d.cs.MaxDepth) { - d.indent() - d.w.Write(maxNewlineBytes) - } else { - vt := v.Type() - numFields := v.NumField() - for i := 0; i < numFields; i++ { - d.indent() - vtf := vt.Field(i) - d.w.Write([]byte(vtf.Name)) - d.w.Write(colonSpaceBytes) - d.ignoreNextIndent = true - d.dump(d.unpackValue(v.Field(i))) - if i < (numFields - 1) { - d.w.Write(commaNewlineBytes) - } else { - d.w.Write(newlineBytes) - } - } - } - d.depth-- - d.indent() - d.w.Write(closeBraceBytes) - - case reflect.Uintptr: - printHexPtr(d.w, uintptr(v.Uint())) - - case reflect.UnsafePointer, reflect.Chan, reflect.Func: - printHexPtr(d.w, v.Pointer()) - - // There were not any other types at the time this code was written, but - // fall back to letting the default fmt package handle it in case any new - // types are added. - default: - if v.CanInterface() { - fmt.Fprintf(d.w, "%v", v.Interface()) - } else { - fmt.Fprintf(d.w, "%v", v.String()) - } - } -} - -// fdump is a helper function to consolidate the logic from the various public -// methods which take varying writers and config states. -func fdump(cs *ConfigState, w io.Writer, a ...interface{}) { - for _, arg := range a { - if arg == nil { - w.Write(interfaceBytes) - w.Write(spaceBytes) - w.Write(nilAngleBytes) - w.Write(newlineBytes) - continue - } - - d := dumpState{w: w, cs: cs} - d.pointers = make(map[uintptr]int) - d.dump(reflect.ValueOf(arg)) - d.w.Write(newlineBytes) - } -} - -// Fdump formats and displays the passed arguments to io.Writer w. It formats -// exactly the same as Dump. -func Fdump(w io.Writer, a ...interface{}) { - fdump(&Config, w, a...) -} - -// Sdump returns a string with the passed arguments formatted exactly the same -// as Dump. -func Sdump(a ...interface{}) string { - var buf bytes.Buffer - fdump(&Config, &buf, a...) - return buf.String() -} - -/* -Dump displays the passed parameters to standard out with newlines, customizable -indentation, and additional debug information such as complete types and all -pointer addresses used to indirect to the final value. It provides the -following features over the built-in printing facilities provided by the fmt -package: - - * Pointers are dereferenced and followed - * Circular data structures are detected and handled properly - * Custom Stringer/error interfaces are optionally invoked, including - on unexported types - * Custom types which only implement the Stringer/error interfaces via - a pointer receiver are optionally invoked when passing non-pointer - variables - * Byte arrays and slices are dumped like the hexdump -C command which - includes offsets, byte values in hex, and ASCII output - -The configuration options are controlled by an exported package global, -spew.Config. See ConfigState for options documentation. - -See Fdump if you would prefer dumping to an arbitrary io.Writer or Sdump to -get the formatted result as a string. -*/ -func Dump(a ...interface{}) { - fdump(&Config, os.Stdout, a...) -} diff --git a/vendor/github.com/davecgh/go-spew/spew/format.go b/vendor/github.com/davecgh/go-spew/spew/format.go deleted file mode 100644 index b04edb7..0000000 --- a/vendor/github.com/davecgh/go-spew/spew/format.go +++ /dev/null @@ -1,419 +0,0 @@ -/* - * Copyright (c) 2013-2016 Dave Collins - * - * Permission to use, copy, modify, and distribute this software for any - * purpose with or without fee is hereby granted, provided that the above - * copyright notice and this permission notice appear in all copies. - * - * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES - * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR - * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES - * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN - * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF - * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. - */ - -package spew - -import ( - "bytes" - "fmt" - "reflect" - "strconv" - "strings" -) - -// supportedFlags is a list of all the character flags supported by fmt package. -const supportedFlags = "0-+# " - -// formatState implements the fmt.Formatter interface and contains information -// about the state of a formatting operation. The NewFormatter function can -// be used to get a new Formatter which can be used directly as arguments -// in standard fmt package printing calls. -type formatState struct { - value interface{} - fs fmt.State - depth int - pointers map[uintptr]int - ignoreNextType bool - cs *ConfigState -} - -// buildDefaultFormat recreates the original format string without precision -// and width information to pass in to fmt.Sprintf in the case of an -// unrecognized type. Unless new types are added to the language, this -// function won't ever be called. -func (f *formatState) buildDefaultFormat() (format string) { - buf := bytes.NewBuffer(percentBytes) - - for _, flag := range supportedFlags { - if f.fs.Flag(int(flag)) { - buf.WriteRune(flag) - } - } - - buf.WriteRune('v') - - format = buf.String() - return format -} - -// constructOrigFormat recreates the original format string including precision -// and width information to pass along to the standard fmt package. This allows -// automatic deferral of all format strings this package doesn't support. -func (f *formatState) constructOrigFormat(verb rune) (format string) { - buf := bytes.NewBuffer(percentBytes) - - for _, flag := range supportedFlags { - if f.fs.Flag(int(flag)) { - buf.WriteRune(flag) - } - } - - if width, ok := f.fs.Width(); ok { - buf.WriteString(strconv.Itoa(width)) - } - - if precision, ok := f.fs.Precision(); ok { - buf.Write(precisionBytes) - buf.WriteString(strconv.Itoa(precision)) - } - - buf.WriteRune(verb) - - format = buf.String() - return format -} - -// unpackValue returns values inside of non-nil interfaces when possible and -// ensures that types for values which have been unpacked from an interface -// are displayed when the show types flag is also set. -// This is useful for data types like structs, arrays, slices, and maps which -// can contain varying types packed inside an interface. -func (f *formatState) unpackValue(v reflect.Value) reflect.Value { - if v.Kind() == reflect.Interface { - f.ignoreNextType = false - if !v.IsNil() { - v = v.Elem() - } - } - return v -} - -// formatPtr handles formatting of pointers by indirecting them as necessary. -func (f *formatState) formatPtr(v reflect.Value) { - // Display nil if top level pointer is nil. - showTypes := f.fs.Flag('#') - if v.IsNil() && (!showTypes || f.ignoreNextType) { - f.fs.Write(nilAngleBytes) - return - } - - // Remove pointers at or below the current depth from map used to detect - // circular refs. - for k, depth := range f.pointers { - if depth >= f.depth { - delete(f.pointers, k) - } - } - - // Keep list of all dereferenced pointers to possibly show later. - pointerChain := make([]uintptr, 0) - - // Figure out how many levels of indirection there are by derferencing - // pointers and unpacking interfaces down the chain while detecting circular - // references. - nilFound := false - cycleFound := false - indirects := 0 - ve := v - for ve.Kind() == reflect.Ptr { - if ve.IsNil() { - nilFound = true - break - } - indirects++ - addr := ve.Pointer() - pointerChain = append(pointerChain, addr) - if pd, ok := f.pointers[addr]; ok && pd < f.depth { - cycleFound = true - indirects-- - break - } - f.pointers[addr] = f.depth - - ve = ve.Elem() - if ve.Kind() == reflect.Interface { - if ve.IsNil() { - nilFound = true - break - } - ve = ve.Elem() - } - } - - // Display type or indirection level depending on flags. - if showTypes && !f.ignoreNextType { - f.fs.Write(openParenBytes) - f.fs.Write(bytes.Repeat(asteriskBytes, indirects)) - f.fs.Write([]byte(ve.Type().String())) - f.fs.Write(closeParenBytes) - } else { - if nilFound || cycleFound { - indirects += strings.Count(ve.Type().String(), "*") - } - f.fs.Write(openAngleBytes) - f.fs.Write([]byte(strings.Repeat("*", indirects))) - f.fs.Write(closeAngleBytes) - } - - // Display pointer information depending on flags. - if f.fs.Flag('+') && (len(pointerChain) > 0) { - f.fs.Write(openParenBytes) - for i, addr := range pointerChain { - if i > 0 { - f.fs.Write(pointerChainBytes) - } - printHexPtr(f.fs, addr) - } - f.fs.Write(closeParenBytes) - } - - // Display dereferenced value. - switch { - case nilFound: - f.fs.Write(nilAngleBytes) - - case cycleFound: - f.fs.Write(circularShortBytes) - - default: - f.ignoreNextType = true - f.format(ve) - } -} - -// format is the main workhorse for providing the Formatter interface. It -// uses the passed reflect value to figure out what kind of object we are -// dealing with and formats it appropriately. It is a recursive function, -// however circular data structures are detected and handled properly. -func (f *formatState) format(v reflect.Value) { - // Handle invalid reflect values immediately. - kind := v.Kind() - if kind == reflect.Invalid { - f.fs.Write(invalidAngleBytes) - return - } - - // Handle pointers specially. - if kind == reflect.Ptr { - f.formatPtr(v) - return - } - - // Print type information unless already handled elsewhere. - if !f.ignoreNextType && f.fs.Flag('#') { - f.fs.Write(openParenBytes) - f.fs.Write([]byte(v.Type().String())) - f.fs.Write(closeParenBytes) - } - f.ignoreNextType = false - - // Call Stringer/error interfaces if they exist and the handle methods - // flag is enabled. - if !f.cs.DisableMethods { - if (kind != reflect.Invalid) && (kind != reflect.Interface) { - if handled := handleMethods(f.cs, f.fs, v); handled { - return - } - } - } - - switch kind { - case reflect.Invalid: - // Do nothing. We should never get here since invalid has already - // been handled above. - - case reflect.Bool: - printBool(f.fs, v.Bool()) - - case reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64, reflect.Int: - printInt(f.fs, v.Int(), 10) - - case reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uint: - printUint(f.fs, v.Uint(), 10) - - case reflect.Float32: - printFloat(f.fs, v.Float(), 32) - - case reflect.Float64: - printFloat(f.fs, v.Float(), 64) - - case reflect.Complex64: - printComplex(f.fs, v.Complex(), 32) - - case reflect.Complex128: - printComplex(f.fs, v.Complex(), 64) - - case reflect.Slice: - if v.IsNil() { - f.fs.Write(nilAngleBytes) - break - } - fallthrough - - case reflect.Array: - f.fs.Write(openBracketBytes) - f.depth++ - if (f.cs.MaxDepth != 0) && (f.depth > f.cs.MaxDepth) { - f.fs.Write(maxShortBytes) - } else { - numEntries := v.Len() - for i := 0; i < numEntries; i++ { - if i > 0 { - f.fs.Write(spaceBytes) - } - f.ignoreNextType = true - f.format(f.unpackValue(v.Index(i))) - } - } - f.depth-- - f.fs.Write(closeBracketBytes) - - case reflect.String: - f.fs.Write([]byte(v.String())) - - case reflect.Interface: - // The only time we should get here is for nil interfaces due to - // unpackValue calls. - if v.IsNil() { - f.fs.Write(nilAngleBytes) - } - - case reflect.Ptr: - // Do nothing. We should never get here since pointers have already - // been handled above. - - case reflect.Map: - // nil maps should be indicated as different than empty maps - if v.IsNil() { - f.fs.Write(nilAngleBytes) - break - } - - f.fs.Write(openMapBytes) - f.depth++ - if (f.cs.MaxDepth != 0) && (f.depth > f.cs.MaxDepth) { - f.fs.Write(maxShortBytes) - } else { - keys := v.MapKeys() - if f.cs.SortKeys { - sortValues(keys, f.cs) - } - for i, key := range keys { - if i > 0 { - f.fs.Write(spaceBytes) - } - f.ignoreNextType = true - f.format(f.unpackValue(key)) - f.fs.Write(colonBytes) - f.ignoreNextType = true - f.format(f.unpackValue(v.MapIndex(key))) - } - } - f.depth-- - f.fs.Write(closeMapBytes) - - case reflect.Struct: - numFields := v.NumField() - f.fs.Write(openBraceBytes) - f.depth++ - if (f.cs.MaxDepth != 0) && (f.depth > f.cs.MaxDepth) { - f.fs.Write(maxShortBytes) - } else { - vt := v.Type() - for i := 0; i < numFields; i++ { - if i > 0 { - f.fs.Write(spaceBytes) - } - vtf := vt.Field(i) - if f.fs.Flag('+') || f.fs.Flag('#') { - f.fs.Write([]byte(vtf.Name)) - f.fs.Write(colonBytes) - } - f.format(f.unpackValue(v.Field(i))) - } - } - f.depth-- - f.fs.Write(closeBraceBytes) - - case reflect.Uintptr: - printHexPtr(f.fs, uintptr(v.Uint())) - - case reflect.UnsafePointer, reflect.Chan, reflect.Func: - printHexPtr(f.fs, v.Pointer()) - - // There were not any other types at the time this code was written, but - // fall back to letting the default fmt package handle it if any get added. - default: - format := f.buildDefaultFormat() - if v.CanInterface() { - fmt.Fprintf(f.fs, format, v.Interface()) - } else { - fmt.Fprintf(f.fs, format, v.String()) - } - } -} - -// Format satisfies the fmt.Formatter interface. See NewFormatter for usage -// details. -func (f *formatState) Format(fs fmt.State, verb rune) { - f.fs = fs - - // Use standard formatting for verbs that are not v. - if verb != 'v' { - format := f.constructOrigFormat(verb) - fmt.Fprintf(fs, format, f.value) - return - } - - if f.value == nil { - if fs.Flag('#') { - fs.Write(interfaceBytes) - } - fs.Write(nilAngleBytes) - return - } - - f.format(reflect.ValueOf(f.value)) -} - -// newFormatter is a helper function to consolidate the logic from the various -// public methods which take varying config states. -func newFormatter(cs *ConfigState, v interface{}) fmt.Formatter { - fs := &formatState{value: v, cs: cs} - fs.pointers = make(map[uintptr]int) - return fs -} - -/* -NewFormatter returns a custom formatter that satisfies the fmt.Formatter -interface. As a result, it integrates cleanly with standard fmt package -printing functions. The formatter is useful for inline printing of smaller data -types similar to the standard %v format specifier. - -The custom formatter only responds to the %v (most compact), %+v (adds pointer -addresses), %#v (adds types), or %#+v (adds types and pointer addresses) verb -combinations. Any other verbs such as %x and %q will be sent to the the -standard fmt package for formatting. In addition, the custom formatter ignores -the width and precision arguments (however they will still work on the format -specifiers not handled by the custom formatter). - -Typically this function shouldn't be called directly. It is much easier to make -use of the custom formatter by calling one of the convenience functions such as -Printf, Println, or Fprintf. -*/ -func NewFormatter(v interface{}) fmt.Formatter { - return newFormatter(&Config, v) -} diff --git a/vendor/github.com/davecgh/go-spew/spew/spew.go b/vendor/github.com/davecgh/go-spew/spew/spew.go deleted file mode 100644 index 32c0e33..0000000 --- a/vendor/github.com/davecgh/go-spew/spew/spew.go +++ /dev/null @@ -1,148 +0,0 @@ -/* - * Copyright (c) 2013-2016 Dave Collins - * - * Permission to use, copy, modify, and distribute this software for any - * purpose with or without fee is hereby granted, provided that the above - * copyright notice and this permission notice appear in all copies. - * - * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES - * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR - * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES - * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN - * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF - * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. - */ - -package spew - -import ( - "fmt" - "io" -) - -// Errorf is a wrapper for fmt.Errorf that treats each argument as if it were -// passed with a default Formatter interface returned by NewFormatter. It -// returns the formatted string as a value that satisfies error. See -// NewFormatter for formatting details. -// -// This function is shorthand for the following syntax: -// -// fmt.Errorf(format, spew.NewFormatter(a), spew.NewFormatter(b)) -func Errorf(format string, a ...interface{}) (err error) { - return fmt.Errorf(format, convertArgs(a)...) -} - -// Fprint is a wrapper for fmt.Fprint that treats each argument as if it were -// passed with a default Formatter interface returned by NewFormatter. It -// returns the number of bytes written and any write error encountered. See -// NewFormatter for formatting details. -// -// This function is shorthand for the following syntax: -// -// fmt.Fprint(w, spew.NewFormatter(a), spew.NewFormatter(b)) -func Fprint(w io.Writer, a ...interface{}) (n int, err error) { - return fmt.Fprint(w, convertArgs(a)...) -} - -// Fprintf is a wrapper for fmt.Fprintf that treats each argument as if it were -// passed with a default Formatter interface returned by NewFormatter. It -// returns the number of bytes written and any write error encountered. See -// NewFormatter for formatting details. -// -// This function is shorthand for the following syntax: -// -// fmt.Fprintf(w, format, spew.NewFormatter(a), spew.NewFormatter(b)) -func Fprintf(w io.Writer, format string, a ...interface{}) (n int, err error) { - return fmt.Fprintf(w, format, convertArgs(a)...) -} - -// Fprintln is a wrapper for fmt.Fprintln that treats each argument as if it -// passed with a default Formatter interface returned by NewFormatter. See -// NewFormatter for formatting details. -// -// This function is shorthand for the following syntax: -// -// fmt.Fprintln(w, spew.NewFormatter(a), spew.NewFormatter(b)) -func Fprintln(w io.Writer, a ...interface{}) (n int, err error) { - return fmt.Fprintln(w, convertArgs(a)...) -} - -// Print is a wrapper for fmt.Print that treats each argument as if it were -// passed with a default Formatter interface returned by NewFormatter. It -// returns the number of bytes written and any write error encountered. See -// NewFormatter for formatting details. -// -// This function is shorthand for the following syntax: -// -// fmt.Print(spew.NewFormatter(a), spew.NewFormatter(b)) -func Print(a ...interface{}) (n int, err error) { - return fmt.Print(convertArgs(a)...) -} - -// Printf is a wrapper for fmt.Printf that treats each argument as if it were -// passed with a default Formatter interface returned by NewFormatter. It -// returns the number of bytes written and any write error encountered. See -// NewFormatter for formatting details. -// -// This function is shorthand for the following syntax: -// -// fmt.Printf(format, spew.NewFormatter(a), spew.NewFormatter(b)) -func Printf(format string, a ...interface{}) (n int, err error) { - return fmt.Printf(format, convertArgs(a)...) -} - -// Println is a wrapper for fmt.Println that treats each argument as if it were -// passed with a default Formatter interface returned by NewFormatter. It -// returns the number of bytes written and any write error encountered. See -// NewFormatter for formatting details. -// -// This function is shorthand for the following syntax: -// -// fmt.Println(spew.NewFormatter(a), spew.NewFormatter(b)) -func Println(a ...interface{}) (n int, err error) { - return fmt.Println(convertArgs(a)...) -} - -// Sprint is a wrapper for fmt.Sprint that treats each argument as if it were -// passed with a default Formatter interface returned by NewFormatter. It -// returns the resulting string. See NewFormatter for formatting details. -// -// This function is shorthand for the following syntax: -// -// fmt.Sprint(spew.NewFormatter(a), spew.NewFormatter(b)) -func Sprint(a ...interface{}) string { - return fmt.Sprint(convertArgs(a)...) -} - -// Sprintf is a wrapper for fmt.Sprintf that treats each argument as if it were -// passed with a default Formatter interface returned by NewFormatter. It -// returns the resulting string. See NewFormatter for formatting details. -// -// This function is shorthand for the following syntax: -// -// fmt.Sprintf(format, spew.NewFormatter(a), spew.NewFormatter(b)) -func Sprintf(format string, a ...interface{}) string { - return fmt.Sprintf(format, convertArgs(a)...) -} - -// Sprintln is a wrapper for fmt.Sprintln that treats each argument as if it -// were passed with a default Formatter interface returned by NewFormatter. It -// returns the resulting string. See NewFormatter for formatting details. -// -// This function is shorthand for the following syntax: -// -// fmt.Sprintln(spew.NewFormatter(a), spew.NewFormatter(b)) -func Sprintln(a ...interface{}) string { - return fmt.Sprintln(convertArgs(a)...) -} - -// convertArgs accepts a slice of arguments and returns a slice of the same -// length with each argument converted to a default spew Formatter interface. -func convertArgs(args []interface{}) (formatters []interface{}) { - formatters = make([]interface{}, len(args)) - for index, arg := range args { - formatters[index] = NewFormatter(arg) - } - return formatters -} diff --git a/vendor/gopkg.in/yaml.v2/.travis.yml b/vendor/gopkg.in/yaml.v2/.travis.yml deleted file mode 100644 index 7348c50..0000000 --- a/vendor/gopkg.in/yaml.v2/.travis.yml +++ /dev/null @@ -1,17 +0,0 @@ -language: go - -go: - - "1.4.x" - - "1.5.x" - - "1.6.x" - - "1.7.x" - - "1.8.x" - - "1.9.x" - - "1.10.x" - - "1.11.x" - - "1.12.x" - - "1.13.x" - - "1.14.x" - - "tip" - -go_import_path: gopkg.in/yaml.v2 diff --git a/vendor/gopkg.in/yaml.v2/LICENSE b/vendor/gopkg.in/yaml.v2/LICENSE deleted file mode 100644 index 8dada3e..0000000 --- a/vendor/gopkg.in/yaml.v2/LICENSE +++ /dev/null @@ -1,201 +0,0 @@ - Apache License - Version 2.0, January 2004 - http://www.apache.org/licenses/ - - TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION - - 1. Definitions. - - "License" shall mean the terms and conditions for use, reproduction, - and distribution as defined by Sections 1 through 9 of this document. - - "Licensor" shall mean the copyright owner or entity authorized by - the copyright owner that is granting the License. - - "Legal Entity" shall mean the union of the acting entity and all - other entities that control, are controlled by, or are under common - control with that entity. For the purposes of this definition, - "control" means (i) the power, direct or indirect, to cause the - direction or management of such entity, whether by contract or - otherwise, or (ii) ownership of fifty percent (50%) or more of the - outstanding shares, or (iii) beneficial ownership of such entity. - - "You" (or "Your") shall mean an individual or Legal Entity - exercising permissions granted by this License. - - "Source" form shall mean the preferred form for making modifications, - including but not limited to software source code, documentation - source, and configuration files. - - "Object" form shall mean any form resulting from mechanical - transformation or translation of a Source form, including but - not limited to compiled object code, generated documentation, - and conversions to other media types. - - "Work" shall mean the work of authorship, whether in Source or - Object form, made available under the License, as indicated by a - copyright notice that is included in or attached to the work - (an example is provided in the Appendix below). - - "Derivative Works" shall mean any work, whether in Source or Object - form, that is based on (or derived from) the Work and for which the - editorial revisions, annotations, elaborations, or other modifications - represent, as a whole, an original work of authorship. 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If You - institute patent litigation against any entity (including a - cross-claim or counterclaim in a lawsuit) alleging that the Work - or a Contribution incorporated within the Work constitutes direct - or contributory patent infringement, then any patent licenses - granted to You under this License for that Work shall terminate - as of the date such litigation is filed. - - 4. Redistribution. You may reproduce and distribute copies of the - Work or Derivative Works thereof in any medium, with or without - modifications, and in Source or Object form, provided that You - meet the following conditions: - - (a) You must give any other recipients of the Work or - Derivative Works a copy of this License; and - - (b) You must cause any modified files to carry prominent notices - stating that You changed the files; and - - (c) You must retain, in the Source form of any Derivative Works - that You distribute, all copyright, patent, trademark, and - attribution notices from the Source form of the Work, - excluding those notices that do not pertain to any part of - the Derivative Works; and - - (d) If the Work includes a "NOTICE" text file as part of its - distribution, then any Derivative Works that You distribute must - include a readable copy of the attribution notices contained - within such NOTICE file, excluding those notices that do not - pertain to any part of the Derivative Works, in at least one - of the following places: within a NOTICE text file distributed - as part of the Derivative Works; within the Source form or - documentation, if provided along with the Derivative Works; or, - within a display generated by the Derivative Works, if and - wherever such third-party notices normally appear. The contents - of the NOTICE file are for informational purposes only and - do not modify the License. You may add Your own attribution - notices within Derivative Works that You distribute, alongside - or as an addendum to the NOTICE text from the Work, provided - that such additional attribution notices cannot be construed - as modifying the License. - - You may add Your own copyright statement to Your modifications and - may provide additional or different license terms and conditions - for use, reproduction, or distribution of Your modifications, or - for any such Derivative Works as a whole, provided Your use, - reproduction, and distribution of the Work otherwise complies with - the conditions stated in this License. - - 5. Submission of Contributions. Unless You explicitly state otherwise, - any Contribution intentionally submitted for inclusion in the Work - by You to the Licensor shall be under the terms and conditions of - this License, without any additional terms or conditions. - Notwithstanding the above, nothing herein shall supersede or modify - the terms of any separate license agreement you may have executed - with Licensor regarding such Contributions. - - 6. Trademarks. This License does not grant permission to use the trade - names, trademarks, service marks, or product names of the Licensor, - except as required for reasonable and customary use in describing the - origin of the Work and reproducing the content of the NOTICE file. - - 7. Disclaimer of Warranty. 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In no event and under no legal theory, - whether in tort (including negligence), contract, or otherwise, - unless required by applicable law (such as deliberate and grossly - negligent acts) or agreed to in writing, shall any Contributor be - liable to You for damages, including any direct, indirect, special, - incidental, or consequential damages of any character arising as a - result of this License or out of the use or inability to use the - Work (including but not limited to damages for loss of goodwill, - work stoppage, computer failure or malfunction, or any and all - other commercial damages or losses), even if such Contributor - has been advised of the possibility of such damages. - - 9. Accepting Warranty or Additional Liability. While redistributing - the Work or Derivative Works thereof, You may choose to offer, - and charge a fee for, acceptance of support, warranty, indemnity, - or other liability obligations and/or rights consistent with this - License. However, in accepting such obligations, You may act only - on Your own behalf and on Your sole responsibility, not on behalf - of any other Contributor, and only if You agree to indemnify, - defend, and hold each Contributor harmless for any liability - incurred by, or claims asserted against, such Contributor by reason - of your accepting any such warranty or additional liability. - - END OF TERMS AND CONDITIONS - - APPENDIX: How to apply the Apache License to your work. - - To apply the Apache License to your work, attach the following - boilerplate notice, with the fields enclosed by brackets "{}" - replaced with your own identifying information. (Don't include - the brackets!) The text should be enclosed in the appropriate - comment syntax for the file format. We also recommend that a - file or class name and description of purpose be included on the - same "printed page" as the copyright notice for easier - identification within third-party archives. - - Copyright {yyyy} {name of copyright owner} - - Licensed under the Apache License, Version 2.0 (the "License"); - you may not use this file except in compliance with the License. - You may obtain a copy of the License at - - http://www.apache.org/licenses/LICENSE-2.0 - - Unless required by applicable law or agreed to in writing, software - distributed under the License is distributed on an "AS IS" BASIS, - WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - See the License for the specific language governing permissions and - limitations under the License. diff --git a/vendor/gopkg.in/yaml.v2/LICENSE.libyaml b/vendor/gopkg.in/yaml.v2/LICENSE.libyaml deleted file mode 100644 index 8da58fb..0000000 --- a/vendor/gopkg.in/yaml.v2/LICENSE.libyaml +++ /dev/null @@ -1,31 +0,0 @@ -The following files were ported to Go from C files of libyaml, and thus -are still covered by their original copyright and license: - - apic.go - emitterc.go - parserc.go - readerc.go - scannerc.go - writerc.go - yamlh.go - yamlprivateh.go - -Copyright (c) 2006 Kirill Simonov - -Permission is hereby granted, free of charge, to any person obtaining a copy of -this software and associated documentation files (the "Software"), to deal in -the Software without restriction, including without limitation the rights to -use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies -of the Software, and to permit persons to whom the Software is furnished to do -so, subject to the following conditions: - -The above copyright notice and this permission notice shall be included in all -copies or substantial portions of the Software. - -THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR -IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, -FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE -AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER -LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, -OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE -SOFTWARE. diff --git a/vendor/gopkg.in/yaml.v2/NOTICE b/vendor/gopkg.in/yaml.v2/NOTICE deleted file mode 100644 index 866d74a..0000000 --- a/vendor/gopkg.in/yaml.v2/NOTICE +++ /dev/null @@ -1,13 +0,0 @@ -Copyright 2011-2016 Canonical Ltd. - -Licensed under the Apache License, Version 2.0 (the "License"); -you may not use this file except in compliance with the License. -You may obtain a copy of the License at - - http://www.apache.org/licenses/LICENSE-2.0 - -Unless required by applicable law or agreed to in writing, software -distributed under the License is distributed on an "AS IS" BASIS, -WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -See the License for the specific language governing permissions and -limitations under the License. diff --git a/vendor/gopkg.in/yaml.v2/README.md b/vendor/gopkg.in/yaml.v2/README.md deleted file mode 100644 index b50c6e8..0000000 --- a/vendor/gopkg.in/yaml.v2/README.md +++ /dev/null @@ -1,133 +0,0 @@ -# YAML support for the Go language - -Introduction ------------- - -The yaml package enables Go programs to comfortably encode and decode YAML -values. It was developed within [Canonical](https://www.canonical.com) as -part of the [juju](https://juju.ubuntu.com) project, and is based on a -pure Go port of the well-known [libyaml](http://pyyaml.org/wiki/LibYAML) -C library to parse and generate YAML data quickly and reliably. - -Compatibility -------------- - -The yaml package supports most of YAML 1.1 and 1.2, including support for -anchors, tags, map merging, etc. Multi-document unmarshalling is not yet -implemented, and base-60 floats from YAML 1.1 are purposefully not -supported since they're a poor design and are gone in YAML 1.2. - -Installation and usage ----------------------- - -The import path for the package is *gopkg.in/yaml.v2*. - -To install it, run: - - go get gopkg.in/yaml.v2 - -API documentation ------------------ - -If opened in a browser, the import path itself leads to the API documentation: - - * [https://gopkg.in/yaml.v2](https://gopkg.in/yaml.v2) - -API stability -------------- - -The package API for yaml v2 will remain stable as described in [gopkg.in](https://gopkg.in). - - -License -------- - -The yaml package is licensed under the Apache License 2.0. Please see the LICENSE file for details. - - -Example -------- - -```Go -package main - -import ( - "fmt" - "log" - - "gopkg.in/yaml.v2" -) - -var data = ` -a: Easy! -b: - c: 2 - d: [3, 4] -` - -// Note: struct fields must be public in order for unmarshal to -// correctly populate the data. -type T struct { - A string - B struct { - RenamedC int `yaml:"c"` - D []int `yaml:",flow"` - } -} - -func main() { - t := T{} - - err := yaml.Unmarshal([]byte(data), &t) - if err != nil { - log.Fatalf("error: %v", err) - } - fmt.Printf("--- t:\n%v\n\n", t) - - d, err := yaml.Marshal(&t) - if err != nil { - log.Fatalf("error: %v", err) - } - fmt.Printf("--- t dump:\n%s\n\n", string(d)) - - m := make(map[interface{}]interface{}) - - err = yaml.Unmarshal([]byte(data), &m) - if err != nil { - log.Fatalf("error: %v", err) - } - fmt.Printf("--- m:\n%v\n\n", m) - - d, err = yaml.Marshal(&m) - if err != nil { - log.Fatalf("error: %v", err) - } - fmt.Printf("--- m dump:\n%s\n\n", string(d)) -} -``` - -This example will generate the following output: - -``` ---- t: -{Easy! {2 [3 4]}} - ---- t dump: -a: Easy! -b: - c: 2 - d: [3, 4] - - ---- m: -map[a:Easy! b:map[c:2 d:[3 4]]] - ---- m dump: -a: Easy! -b: - c: 2 - d: - - 3 - - 4 -``` - diff --git a/vendor/gopkg.in/yaml.v2/apic.go b/vendor/gopkg.in/yaml.v2/apic.go deleted file mode 100644 index acf7140..0000000 --- a/vendor/gopkg.in/yaml.v2/apic.go +++ /dev/null @@ -1,744 +0,0 @@ -package yaml - -import ( - "io" -) - -func yaml_insert_token(parser *yaml_parser_t, pos int, token *yaml_token_t) { - //fmt.Println("yaml_insert_token", "pos:", pos, "typ:", token.typ, "head:", parser.tokens_head, "len:", len(parser.tokens)) - - // Check if we can move the queue at the beginning of the buffer. - if parser.tokens_head > 0 && len(parser.tokens) == cap(parser.tokens) { - if parser.tokens_head != len(parser.tokens) { - copy(parser.tokens, parser.tokens[parser.tokens_head:]) - } - parser.tokens = parser.tokens[:len(parser.tokens)-parser.tokens_head] - parser.tokens_head = 0 - } - parser.tokens = append(parser.tokens, *token) - if pos < 0 { - return - } - copy(parser.tokens[parser.tokens_head+pos+1:], parser.tokens[parser.tokens_head+pos:]) - parser.tokens[parser.tokens_head+pos] = *token -} - -// Create a new parser object. -func yaml_parser_initialize(parser *yaml_parser_t) bool { - *parser = yaml_parser_t{ - raw_buffer: make([]byte, 0, input_raw_buffer_size), - buffer: make([]byte, 0, input_buffer_size), - } - return true -} - -// Destroy a parser object. -func yaml_parser_delete(parser *yaml_parser_t) { - *parser = yaml_parser_t{} -} - -// String read handler. -func yaml_string_read_handler(parser *yaml_parser_t, buffer []byte) (n int, err error) { - if parser.input_pos == len(parser.input) { - return 0, io.EOF - } - n = copy(buffer, parser.input[parser.input_pos:]) - parser.input_pos += n - return n, nil -} - -// Reader read handler. -func yaml_reader_read_handler(parser *yaml_parser_t, buffer []byte) (n int, err error) { - return parser.input_reader.Read(buffer) -} - -// Set a string input. -func yaml_parser_set_input_string(parser *yaml_parser_t, input []byte) { - if parser.read_handler != nil { - panic("must set the input source only once") - } - parser.read_handler = yaml_string_read_handler - parser.input = input - parser.input_pos = 0 -} - -// Set a file input. -func yaml_parser_set_input_reader(parser *yaml_parser_t, r io.Reader) { - if parser.read_handler != nil { - panic("must set the input source only once") - } - parser.read_handler = yaml_reader_read_handler - parser.input_reader = r -} - -// Set the source encoding. -func yaml_parser_set_encoding(parser *yaml_parser_t, encoding yaml_encoding_t) { - if parser.encoding != yaml_ANY_ENCODING { - panic("must set the encoding only once") - } - parser.encoding = encoding -} - -var disableLineWrapping = false - -// Create a new emitter object. -func yaml_emitter_initialize(emitter *yaml_emitter_t) { - *emitter = yaml_emitter_t{ - buffer: make([]byte, output_buffer_size), - raw_buffer: make([]byte, 0, output_raw_buffer_size), - states: make([]yaml_emitter_state_t, 0, initial_stack_size), - events: make([]yaml_event_t, 0, initial_queue_size), - } - if disableLineWrapping { - emitter.best_width = -1 - } -} - -// Destroy an emitter object. -func yaml_emitter_delete(emitter *yaml_emitter_t) { - *emitter = yaml_emitter_t{} -} - -// String write handler. -func yaml_string_write_handler(emitter *yaml_emitter_t, buffer []byte) error { - *emitter.output_buffer = append(*emitter.output_buffer, buffer...) - return nil -} - -// yaml_writer_write_handler uses emitter.output_writer to write the -// emitted text. -func yaml_writer_write_handler(emitter *yaml_emitter_t, buffer []byte) error { - _, err := emitter.output_writer.Write(buffer) - return err -} - -// Set a string output. -func yaml_emitter_set_output_string(emitter *yaml_emitter_t, output_buffer *[]byte) { - if emitter.write_handler != nil { - panic("must set the output target only once") - } - emitter.write_handler = yaml_string_write_handler - emitter.output_buffer = output_buffer -} - -// Set a file output. -func yaml_emitter_set_output_writer(emitter *yaml_emitter_t, w io.Writer) { - if emitter.write_handler != nil { - panic("must set the output target only once") - } - emitter.write_handler = yaml_writer_write_handler - emitter.output_writer = w -} - -// Set the output encoding. -func yaml_emitter_set_encoding(emitter *yaml_emitter_t, encoding yaml_encoding_t) { - if emitter.encoding != yaml_ANY_ENCODING { - panic("must set the output encoding only once") - } - emitter.encoding = encoding -} - -// Set the canonical output style. -func yaml_emitter_set_canonical(emitter *yaml_emitter_t, canonical bool) { - emitter.canonical = canonical -} - -//// Set the indentation increment. -func yaml_emitter_set_indent(emitter *yaml_emitter_t, indent int) { - if indent < 2 || indent > 9 { - indent = 2 - } - emitter.best_indent = indent -} - -// Set the preferred line width. -func yaml_emitter_set_width(emitter *yaml_emitter_t, width int) { - if width < 0 { - width = -1 - } - emitter.best_width = width -} - -// Set if unescaped non-ASCII characters are allowed. -func yaml_emitter_set_unicode(emitter *yaml_emitter_t, unicode bool) { - emitter.unicode = unicode -} - -// Set the preferred line break character. -func yaml_emitter_set_break(emitter *yaml_emitter_t, line_break yaml_break_t) { - emitter.line_break = line_break -} - -///* -// * Destroy a token object. -// */ -// -//YAML_DECLARE(void) -//yaml_token_delete(yaml_token_t *token) -//{ -// assert(token); // Non-NULL token object expected. -// -// switch (token.type) -// { -// case YAML_TAG_DIRECTIVE_TOKEN: -// yaml_free(token.data.tag_directive.handle); -// yaml_free(token.data.tag_directive.prefix); -// break; -// -// case YAML_ALIAS_TOKEN: -// yaml_free(token.data.alias.value); -// break; -// -// case YAML_ANCHOR_TOKEN: -// yaml_free(token.data.anchor.value); -// break; -// -// case YAML_TAG_TOKEN: -// yaml_free(token.data.tag.handle); -// yaml_free(token.data.tag.suffix); -// break; -// -// case YAML_SCALAR_TOKEN: -// yaml_free(token.data.scalar.value); -// break; -// -// default: -// break; -// } -// -// memset(token, 0, sizeof(yaml_token_t)); -//} -// -///* -// * Check if a string is a valid UTF-8 sequence. -// * -// * Check 'reader.c' for more details on UTF-8 encoding. -// */ -// -//static int -//yaml_check_utf8(yaml_char_t *start, size_t length) -//{ -// yaml_char_t *end = start+length; -// yaml_char_t *pointer = start; -// -// while (pointer < end) { -// unsigned char octet; -// unsigned int width; -// unsigned int value; -// size_t k; -// -// octet = pointer[0]; -// width = (octet & 0x80) == 0x00 ? 1 : -// (octet & 0xE0) == 0xC0 ? 2 : -// (octet & 0xF0) == 0xE0 ? 3 : -// (octet & 0xF8) == 0xF0 ? 4 : 0; -// value = (octet & 0x80) == 0x00 ? octet & 0x7F : -// (octet & 0xE0) == 0xC0 ? octet & 0x1F : -// (octet & 0xF0) == 0xE0 ? octet & 0x0F : -// (octet & 0xF8) == 0xF0 ? octet & 0x07 : 0; -// if (!width) return 0; -// if (pointer+width > end) return 0; -// for (k = 1; k < width; k ++) { -// octet = pointer[k]; -// if ((octet & 0xC0) != 0x80) return 0; -// value = (value << 6) + (octet & 0x3F); -// } -// if (!((width == 1) || -// (width == 2 && value >= 0x80) || -// (width == 3 && value >= 0x800) || -// (width == 4 && value >= 0x10000))) return 0; -// -// pointer += width; -// } -// -// return 1; -//} -// - -// Create STREAM-START. -func yaml_stream_start_event_initialize(event *yaml_event_t, encoding yaml_encoding_t) { - *event = yaml_event_t{ - typ: yaml_STREAM_START_EVENT, - encoding: encoding, - } -} - -// Create STREAM-END. -func yaml_stream_end_event_initialize(event *yaml_event_t) { - *event = yaml_event_t{ - typ: yaml_STREAM_END_EVENT, - } -} - -// Create DOCUMENT-START. -func yaml_document_start_event_initialize( - event *yaml_event_t, - version_directive *yaml_version_directive_t, - tag_directives []yaml_tag_directive_t, - implicit bool, -) { - *event = yaml_event_t{ - typ: yaml_DOCUMENT_START_EVENT, - version_directive: version_directive, - tag_directives: tag_directives, - implicit: implicit, - } -} - -// Create DOCUMENT-END. -func yaml_document_end_event_initialize(event *yaml_event_t, implicit bool) { - *event = yaml_event_t{ - typ: yaml_DOCUMENT_END_EVENT, - implicit: implicit, - } -} - -///* -// * Create ALIAS. -// */ -// -//YAML_DECLARE(int) -//yaml_alias_event_initialize(event *yaml_event_t, anchor *yaml_char_t) -//{ -// mark yaml_mark_t = { 0, 0, 0 } -// anchor_copy *yaml_char_t = NULL -// -// assert(event) // Non-NULL event object is expected. -// assert(anchor) // Non-NULL anchor is expected. -// -// if (!yaml_check_utf8(anchor, strlen((char *)anchor))) return 0 -// -// anchor_copy = yaml_strdup(anchor) -// if (!anchor_copy) -// return 0 -// -// ALIAS_EVENT_INIT(*event, anchor_copy, mark, mark) -// -// return 1 -//} - -// Create SCALAR. -func yaml_scalar_event_initialize(event *yaml_event_t, anchor, tag, value []byte, plain_implicit, quoted_implicit bool, style yaml_scalar_style_t) bool { - *event = yaml_event_t{ - typ: yaml_SCALAR_EVENT, - anchor: anchor, - tag: tag, - value: value, - implicit: plain_implicit, - quoted_implicit: quoted_implicit, - style: yaml_style_t(style), - } - return true -} - -// Create SEQUENCE-START. -func yaml_sequence_start_event_initialize(event *yaml_event_t, anchor, tag []byte, implicit bool, style yaml_sequence_style_t) bool { - *event = yaml_event_t{ - typ: yaml_SEQUENCE_START_EVENT, - anchor: anchor, - tag: tag, - implicit: implicit, - style: yaml_style_t(style), - } - return true -} - -// Create SEQUENCE-END. -func yaml_sequence_end_event_initialize(event *yaml_event_t) bool { - *event = yaml_event_t{ - typ: yaml_SEQUENCE_END_EVENT, - } - return true -} - -// Create MAPPING-START. -func yaml_mapping_start_event_initialize(event *yaml_event_t, anchor, tag []byte, implicit bool, style yaml_mapping_style_t) { - *event = yaml_event_t{ - typ: yaml_MAPPING_START_EVENT, - anchor: anchor, - tag: tag, - implicit: implicit, - style: yaml_style_t(style), - } -} - -// Create MAPPING-END. -func yaml_mapping_end_event_initialize(event *yaml_event_t) { - *event = yaml_event_t{ - typ: yaml_MAPPING_END_EVENT, - } -} - -// Destroy an event object. -func yaml_event_delete(event *yaml_event_t) { - *event = yaml_event_t{} -} - -///* -// * Create a document object. -// */ -// -//YAML_DECLARE(int) -//yaml_document_initialize(document *yaml_document_t, -// version_directive *yaml_version_directive_t, -// tag_directives_start *yaml_tag_directive_t, -// tag_directives_end *yaml_tag_directive_t, -// start_implicit int, end_implicit int) -//{ -// struct { -// error yaml_error_type_t -// } context -// struct { -// start *yaml_node_t -// end *yaml_node_t -// top *yaml_node_t -// } nodes = { NULL, NULL, NULL } -// version_directive_copy *yaml_version_directive_t = NULL -// struct { -// start *yaml_tag_directive_t -// end *yaml_tag_directive_t -// top *yaml_tag_directive_t -// } tag_directives_copy = { NULL, NULL, NULL } -// value yaml_tag_directive_t = { NULL, NULL } -// mark yaml_mark_t = { 0, 0, 0 } -// -// assert(document) // Non-NULL document object is expected. -// assert((tag_directives_start && tag_directives_end) || -// (tag_directives_start == tag_directives_end)) -// // Valid tag directives are expected. -// -// if (!STACK_INIT(&context, nodes, INITIAL_STACK_SIZE)) goto error -// -// if (version_directive) { -// version_directive_copy = yaml_malloc(sizeof(yaml_version_directive_t)) -// if (!version_directive_copy) goto error -// version_directive_copy.major = version_directive.major -// version_directive_copy.minor = version_directive.minor -// } -// -// if (tag_directives_start != tag_directives_end) { -// tag_directive *yaml_tag_directive_t -// if (!STACK_INIT(&context, tag_directives_copy, INITIAL_STACK_SIZE)) -// goto error -// for (tag_directive = tag_directives_start -// tag_directive != tag_directives_end; tag_directive ++) { -// assert(tag_directive.handle) -// assert(tag_directive.prefix) -// if (!yaml_check_utf8(tag_directive.handle, -// strlen((char *)tag_directive.handle))) -// goto error -// if (!yaml_check_utf8(tag_directive.prefix, -// strlen((char *)tag_directive.prefix))) -// goto error -// value.handle = yaml_strdup(tag_directive.handle) -// value.prefix = yaml_strdup(tag_directive.prefix) -// if (!value.handle || !value.prefix) goto error -// if (!PUSH(&context, tag_directives_copy, value)) -// goto error -// value.handle = NULL -// value.prefix = NULL -// } -// } -// -// DOCUMENT_INIT(*document, nodes.start, nodes.end, version_directive_copy, -// tag_directives_copy.start, tag_directives_copy.top, -// start_implicit, end_implicit, mark, mark) -// -// return 1 -// -//error: -// STACK_DEL(&context, nodes) -// yaml_free(version_directive_copy) -// while (!STACK_EMPTY(&context, tag_directives_copy)) { -// value yaml_tag_directive_t = POP(&context, tag_directives_copy) -// yaml_free(value.handle) -// yaml_free(value.prefix) -// } -// STACK_DEL(&context, tag_directives_copy) -// yaml_free(value.handle) -// yaml_free(value.prefix) -// -// return 0 -//} -// -///* -// * Destroy a document object. -// */ -// -//YAML_DECLARE(void) -//yaml_document_delete(document *yaml_document_t) -//{ -// struct { -// error yaml_error_type_t -// } context -// tag_directive *yaml_tag_directive_t -// -// context.error = YAML_NO_ERROR // Eliminate a compiler warning. -// -// assert(document) // Non-NULL document object is expected. -// -// while (!STACK_EMPTY(&context, document.nodes)) { -// node yaml_node_t = POP(&context, document.nodes) -// yaml_free(node.tag) -// switch (node.type) { -// case YAML_SCALAR_NODE: -// yaml_free(node.data.scalar.value) -// break -// case YAML_SEQUENCE_NODE: -// STACK_DEL(&context, node.data.sequence.items) -// break -// case YAML_MAPPING_NODE: -// STACK_DEL(&context, node.data.mapping.pairs) -// break -// default: -// assert(0) // Should not happen. -// } -// } -// STACK_DEL(&context, document.nodes) -// -// yaml_free(document.version_directive) -// for (tag_directive = document.tag_directives.start -// tag_directive != document.tag_directives.end -// tag_directive++) { -// yaml_free(tag_directive.handle) -// yaml_free(tag_directive.prefix) -// } -// yaml_free(document.tag_directives.start) -// -// memset(document, 0, sizeof(yaml_document_t)) -//} -// -///** -// * Get a document node. -// */ -// -//YAML_DECLARE(yaml_node_t *) -//yaml_document_get_node(document *yaml_document_t, index int) -//{ -// assert(document) // Non-NULL document object is expected. -// -// if (index > 0 && document.nodes.start + index <= document.nodes.top) { -// return document.nodes.start + index - 1 -// } -// return NULL -//} -// -///** -// * Get the root object. -// */ -// -//YAML_DECLARE(yaml_node_t *) -//yaml_document_get_root_node(document *yaml_document_t) -//{ -// assert(document) // Non-NULL document object is expected. -// -// if (document.nodes.top != document.nodes.start) { -// return document.nodes.start -// } -// return NULL -//} -// -///* -// * Add a scalar node to a document. -// */ -// -//YAML_DECLARE(int) -//yaml_document_add_scalar(document *yaml_document_t, -// tag *yaml_char_t, value *yaml_char_t, length int, -// style yaml_scalar_style_t) -//{ -// struct { -// error yaml_error_type_t -// } context -// mark yaml_mark_t = { 0, 0, 0 } -// tag_copy *yaml_char_t = NULL -// value_copy *yaml_char_t = NULL -// node yaml_node_t -// -// assert(document) // Non-NULL document object is expected. -// assert(value) // Non-NULL value is expected. -// -// if (!tag) { -// tag = (yaml_char_t *)YAML_DEFAULT_SCALAR_TAG -// } -// -// if (!yaml_check_utf8(tag, strlen((char *)tag))) goto error -// tag_copy = yaml_strdup(tag) -// if (!tag_copy) goto error -// -// if (length < 0) { -// length = strlen((char *)value) -// } -// -// if (!yaml_check_utf8(value, length)) goto error -// value_copy = yaml_malloc(length+1) -// if (!value_copy) goto error -// memcpy(value_copy, value, length) -// value_copy[length] = '\0' -// -// SCALAR_NODE_INIT(node, tag_copy, value_copy, length, style, mark, mark) -// if (!PUSH(&context, document.nodes, node)) goto error -// -// return document.nodes.top - document.nodes.start -// -//error: -// yaml_free(tag_copy) -// yaml_free(value_copy) -// -// return 0 -//} -// -///* -// * Add a sequence node to a document. -// */ -// -//YAML_DECLARE(int) -//yaml_document_add_sequence(document *yaml_document_t, -// tag *yaml_char_t, style yaml_sequence_style_t) -//{ -// struct { -// error yaml_error_type_t -// } context -// mark yaml_mark_t = { 0, 0, 0 } -// tag_copy *yaml_char_t = NULL -// struct { -// start *yaml_node_item_t -// end *yaml_node_item_t -// top *yaml_node_item_t -// } items = { NULL, NULL, NULL } -// node yaml_node_t -// -// assert(document) // Non-NULL document object is expected. -// -// if (!tag) { -// tag = (yaml_char_t *)YAML_DEFAULT_SEQUENCE_TAG -// } -// -// if (!yaml_check_utf8(tag, strlen((char *)tag))) goto error -// tag_copy = yaml_strdup(tag) -// if (!tag_copy) goto error -// -// if (!STACK_INIT(&context, items, INITIAL_STACK_SIZE)) goto error -// -// SEQUENCE_NODE_INIT(node, tag_copy, items.start, items.end, -// style, mark, mark) -// if (!PUSH(&context, document.nodes, node)) goto error -// -// return document.nodes.top - document.nodes.start -// -//error: -// STACK_DEL(&context, items) -// yaml_free(tag_copy) -// -// return 0 -//} -// -///* -// * Add a mapping node to a document. -// */ -// -//YAML_DECLARE(int) -//yaml_document_add_mapping(document *yaml_document_t, -// tag *yaml_char_t, style yaml_mapping_style_t) -//{ -// struct { -// error yaml_error_type_t -// } context -// mark yaml_mark_t = { 0, 0, 0 } -// tag_copy *yaml_char_t = NULL -// struct { -// start *yaml_node_pair_t -// end *yaml_node_pair_t -// top *yaml_node_pair_t -// } pairs = { NULL, NULL, NULL } -// node yaml_node_t -// -// assert(document) // Non-NULL document object is expected. -// -// if (!tag) { -// tag = (yaml_char_t *)YAML_DEFAULT_MAPPING_TAG -// } -// -// if (!yaml_check_utf8(tag, strlen((char *)tag))) goto error -// tag_copy = yaml_strdup(tag) -// if (!tag_copy) goto error -// -// if (!STACK_INIT(&context, pairs, INITIAL_STACK_SIZE)) goto error -// -// MAPPING_NODE_INIT(node, tag_copy, pairs.start, pairs.end, -// style, mark, mark) -// if (!PUSH(&context, document.nodes, node)) goto error -// -// return document.nodes.top - document.nodes.start -// -//error: -// STACK_DEL(&context, pairs) -// yaml_free(tag_copy) -// -// return 0 -//} -// -///* -// * Append an item to a sequence node. -// */ -// -//YAML_DECLARE(int) -//yaml_document_append_sequence_item(document *yaml_document_t, -// sequence int, item int) -//{ -// struct { -// error yaml_error_type_t -// } context -// -// assert(document) // Non-NULL document is required. -// assert(sequence > 0 -// && document.nodes.start + sequence <= document.nodes.top) -// // Valid sequence id is required. -// assert(document.nodes.start[sequence-1].type == YAML_SEQUENCE_NODE) -// // A sequence node is required. -// assert(item > 0 && document.nodes.start + item <= document.nodes.top) -// // Valid item id is required. -// -// if (!PUSH(&context, -// document.nodes.start[sequence-1].data.sequence.items, item)) -// return 0 -// -// return 1 -//} -// -///* -// * Append a pair of a key and a value to a mapping node. -// */ -// -//YAML_DECLARE(int) -//yaml_document_append_mapping_pair(document *yaml_document_t, -// mapping int, key int, value int) -//{ -// struct { -// error yaml_error_type_t -// } context -// -// pair yaml_node_pair_t -// -// assert(document) // Non-NULL document is required. -// assert(mapping > 0 -// && document.nodes.start + mapping <= document.nodes.top) -// // Valid mapping id is required. -// assert(document.nodes.start[mapping-1].type == YAML_MAPPING_NODE) -// // A mapping node is required. -// assert(key > 0 && document.nodes.start + key <= document.nodes.top) -// // Valid key id is required. -// assert(value > 0 && document.nodes.start + value <= document.nodes.top) -// // Valid value id is required. -// -// pair.key = key -// pair.value = value -// -// if (!PUSH(&context, -// document.nodes.start[mapping-1].data.mapping.pairs, pair)) -// return 0 -// -// return 1 -//} -// -// diff --git a/vendor/gopkg.in/yaml.v2/decode.go b/vendor/gopkg.in/yaml.v2/decode.go deleted file mode 100644 index 129bc2a..0000000 --- a/vendor/gopkg.in/yaml.v2/decode.go +++ /dev/null @@ -1,815 +0,0 @@ -package yaml - -import ( - "encoding" - "encoding/base64" - "fmt" - "io" - "math" - "reflect" - "strconv" - "time" -) - -const ( - documentNode = 1 << iota - mappingNode - sequenceNode - scalarNode - aliasNode -) - -type node struct { - kind int - line, column int - tag string - // For an alias node, alias holds the resolved alias. - alias *node - value string - implicit bool - children []*node - anchors map[string]*node -} - -// ---------------------------------------------------------------------------- -// Parser, produces a node tree out of a libyaml event stream. - -type parser struct { - parser yaml_parser_t - event yaml_event_t - doc *node - doneInit bool -} - -func newParser(b []byte) *parser { - p := parser{} - if !yaml_parser_initialize(&p.parser) { - panic("failed to initialize YAML emitter") - } - if len(b) == 0 { - b = []byte{'\n'} - } - yaml_parser_set_input_string(&p.parser, b) - return &p -} - -func newParserFromReader(r io.Reader) *parser { - p := parser{} - if !yaml_parser_initialize(&p.parser) { - panic("failed to initialize YAML emitter") - } - yaml_parser_set_input_reader(&p.parser, r) - return &p -} - -func (p *parser) init() { - if p.doneInit { - return - } - p.expect(yaml_STREAM_START_EVENT) - p.doneInit = true -} - -func (p *parser) destroy() { - if p.event.typ != yaml_NO_EVENT { - yaml_event_delete(&p.event) - } - yaml_parser_delete(&p.parser) -} - -// expect consumes an event from the event stream and -// checks that it's of the expected type. -func (p *parser) expect(e yaml_event_type_t) { - if p.event.typ == yaml_NO_EVENT { - if !yaml_parser_parse(&p.parser, &p.event) { - p.fail() - } - } - if p.event.typ == yaml_STREAM_END_EVENT { - failf("attempted to go past the end of stream; corrupted value?") - } - if p.event.typ != e { - p.parser.problem = fmt.Sprintf("expected %s event but got %s", e, p.event.typ) - p.fail() - } - yaml_event_delete(&p.event) - p.event.typ = yaml_NO_EVENT -} - -// peek peeks at the next event in the event stream, -// puts the results into p.event and returns the event type. -func (p *parser) peek() yaml_event_type_t { - if p.event.typ != yaml_NO_EVENT { - return p.event.typ - } - if !yaml_parser_parse(&p.parser, &p.event) { - p.fail() - } - return p.event.typ -} - -func (p *parser) fail() { - var where string - var line int - if p.parser.problem_mark.line != 0 { - line = p.parser.problem_mark.line - // Scanner errors don't iterate line before returning error - if p.parser.error == yaml_SCANNER_ERROR { - line++ - } - } else if p.parser.context_mark.line != 0 { - line = p.parser.context_mark.line - } - if line != 0 { - where = "line " + strconv.Itoa(line) + ": " - } - var msg string - if len(p.parser.problem) > 0 { - msg = p.parser.problem - } else { - msg = "unknown problem parsing YAML content" - } - failf("%s%s", where, msg) -} - -func (p *parser) anchor(n *node, anchor []byte) { - if anchor != nil { - p.doc.anchors[string(anchor)] = n - } -} - -func (p *parser) parse() *node { - p.init() - switch p.peek() { - case yaml_SCALAR_EVENT: - return p.scalar() - case yaml_ALIAS_EVENT: - return p.alias() - case yaml_MAPPING_START_EVENT: - return p.mapping() - case yaml_SEQUENCE_START_EVENT: - return p.sequence() - case yaml_DOCUMENT_START_EVENT: - return p.document() - case yaml_STREAM_END_EVENT: - // Happens when attempting to decode an empty buffer. - return nil - default: - panic("attempted to parse unknown event: " + p.event.typ.String()) - } -} - -func (p *parser) node(kind int) *node { - return &node{ - kind: kind, - line: p.event.start_mark.line, - column: p.event.start_mark.column, - } -} - -func (p *parser) document() *node { - n := p.node(documentNode) - n.anchors = make(map[string]*node) - p.doc = n - p.expect(yaml_DOCUMENT_START_EVENT) - n.children = append(n.children, p.parse()) - p.expect(yaml_DOCUMENT_END_EVENT) - return n -} - -func (p *parser) alias() *node { - n := p.node(aliasNode) - n.value = string(p.event.anchor) - n.alias = p.doc.anchors[n.value] - if n.alias == nil { - failf("unknown anchor '%s' referenced", n.value) - } - p.expect(yaml_ALIAS_EVENT) - return n -} - -func (p *parser) scalar() *node { - n := p.node(scalarNode) - n.value = string(p.event.value) - n.tag = string(p.event.tag) - n.implicit = p.event.implicit - p.anchor(n, p.event.anchor) - p.expect(yaml_SCALAR_EVENT) - return n -} - -func (p *parser) sequence() *node { - n := p.node(sequenceNode) - p.anchor(n, p.event.anchor) - p.expect(yaml_SEQUENCE_START_EVENT) - for p.peek() != yaml_SEQUENCE_END_EVENT { - n.children = append(n.children, p.parse()) - } - p.expect(yaml_SEQUENCE_END_EVENT) - return n -} - -func (p *parser) mapping() *node { - n := p.node(mappingNode) - p.anchor(n, p.event.anchor) - p.expect(yaml_MAPPING_START_EVENT) - for p.peek() != yaml_MAPPING_END_EVENT { - n.children = append(n.children, p.parse(), p.parse()) - } - p.expect(yaml_MAPPING_END_EVENT) - return n -} - -// ---------------------------------------------------------------------------- -// Decoder, unmarshals a node into a provided value. - -type decoder struct { - doc *node - aliases map[*node]bool - mapType reflect.Type - terrors []string - strict bool - - decodeCount int - aliasCount int - aliasDepth int -} - -var ( - mapItemType = reflect.TypeOf(MapItem{}) - durationType = reflect.TypeOf(time.Duration(0)) - defaultMapType = reflect.TypeOf(map[interface{}]interface{}{}) - ifaceType = defaultMapType.Elem() - timeType = reflect.TypeOf(time.Time{}) - ptrTimeType = reflect.TypeOf(&time.Time{}) -) - -func newDecoder(strict bool) *decoder { - d := &decoder{mapType: defaultMapType, strict: strict} - d.aliases = make(map[*node]bool) - return d -} - -func (d *decoder) terror(n *node, tag string, out reflect.Value) { - if n.tag != "" { - tag = n.tag - } - value := n.value - if tag != yaml_SEQ_TAG && tag != yaml_MAP_TAG { - if len(value) > 10 { - value = " `" + value[:7] + "...`" - } else { - value = " `" + value + "`" - } - } - d.terrors = append(d.terrors, fmt.Sprintf("line %d: cannot unmarshal %s%s into %s", n.line+1, shortTag(tag), value, out.Type())) -} - -func (d *decoder) callUnmarshaler(n *node, u Unmarshaler) (good bool) { - terrlen := len(d.terrors) - err := u.UnmarshalYAML(func(v interface{}) (err error) { - defer handleErr(&err) - d.unmarshal(n, reflect.ValueOf(v)) - if len(d.terrors) > terrlen { - issues := d.terrors[terrlen:] - d.terrors = d.terrors[:terrlen] - return &TypeError{issues} - } - return nil - }) - if e, ok := err.(*TypeError); ok { - d.terrors = append(d.terrors, e.Errors...) - return false - } - if err != nil { - fail(err) - } - return true -} - -// d.prepare initializes and dereferences pointers and calls UnmarshalYAML -// if a value is found to implement it. -// It returns the initialized and dereferenced out value, whether -// unmarshalling was already done by UnmarshalYAML, and if so whether -// its types unmarshalled appropriately. -// -// If n holds a null value, prepare returns before doing anything. -func (d *decoder) prepare(n *node, out reflect.Value) (newout reflect.Value, unmarshaled, good bool) { - if n.tag == yaml_NULL_TAG || n.kind == scalarNode && n.tag == "" && (n.value == "null" || n.value == "~" || n.value == "" && n.implicit) { - return out, false, false - } - again := true - for again { - again = false - if out.Kind() == reflect.Ptr { - if out.IsNil() { - out.Set(reflect.New(out.Type().Elem())) - } - out = out.Elem() - again = true - } - if out.CanAddr() { - if u, ok := out.Addr().Interface().(Unmarshaler); ok { - good = d.callUnmarshaler(n, u) - return out, true, good - } - } - } - return out, false, false -} - -const ( - // 400,000 decode operations is ~500kb of dense object declarations, or - // ~5kb of dense object declarations with 10000% alias expansion - alias_ratio_range_low = 400000 - - // 4,000,000 decode operations is ~5MB of dense object declarations, or - // ~4.5MB of dense object declarations with 10% alias expansion - alias_ratio_range_high = 4000000 - - // alias_ratio_range is the range over which we scale allowed alias ratios - alias_ratio_range = float64(alias_ratio_range_high - alias_ratio_range_low) -) - -func allowedAliasRatio(decodeCount int) float64 { - switch { - case decodeCount <= alias_ratio_range_low: - // allow 99% to come from alias expansion for small-to-medium documents - return 0.99 - case decodeCount >= alias_ratio_range_high: - // allow 10% to come from alias expansion for very large documents - return 0.10 - default: - // scale smoothly from 99% down to 10% over the range. - // this maps to 396,000 - 400,000 allowed alias-driven decodes over the range. - // 400,000 decode operations is ~100MB of allocations in worst-case scenarios (single-item maps). - return 0.99 - 0.89*(float64(decodeCount-alias_ratio_range_low)/alias_ratio_range) - } -} - -func (d *decoder) unmarshal(n *node, out reflect.Value) (good bool) { - d.decodeCount++ - if d.aliasDepth > 0 { - d.aliasCount++ - } - if d.aliasCount > 100 && d.decodeCount > 1000 && float64(d.aliasCount)/float64(d.decodeCount) > allowedAliasRatio(d.decodeCount) { - failf("document contains excessive aliasing") - } - switch n.kind { - case documentNode: - return d.document(n, out) - case aliasNode: - return d.alias(n, out) - } - out, unmarshaled, good := d.prepare(n, out) - if unmarshaled { - return good - } - switch n.kind { - case scalarNode: - good = d.scalar(n, out) - case mappingNode: - good = d.mapping(n, out) - case sequenceNode: - good = d.sequence(n, out) - default: - panic("internal error: unknown node kind: " + strconv.Itoa(n.kind)) - } - return good -} - -func (d *decoder) document(n *node, out reflect.Value) (good bool) { - if len(n.children) == 1 { - d.doc = n - d.unmarshal(n.children[0], out) - return true - } - return false -} - -func (d *decoder) alias(n *node, out reflect.Value) (good bool) { - if d.aliases[n] { - // TODO this could actually be allowed in some circumstances. - failf("anchor '%s' value contains itself", n.value) - } - d.aliases[n] = true - d.aliasDepth++ - good = d.unmarshal(n.alias, out) - d.aliasDepth-- - delete(d.aliases, n) - return good -} - -var zeroValue reflect.Value - -func resetMap(out reflect.Value) { - for _, k := range out.MapKeys() { - out.SetMapIndex(k, zeroValue) - } -} - -func (d *decoder) scalar(n *node, out reflect.Value) bool { - var tag string - var resolved interface{} - if n.tag == "" && !n.implicit { - tag = yaml_STR_TAG - resolved = n.value - } else { - tag, resolved = resolve(n.tag, n.value) - if tag == yaml_BINARY_TAG { - data, err := base64.StdEncoding.DecodeString(resolved.(string)) - if err != nil { - failf("!!binary value contains invalid base64 data") - } - resolved = string(data) - } - } - if resolved == nil { - if out.Kind() == reflect.Map && !out.CanAddr() { - resetMap(out) - } else { - out.Set(reflect.Zero(out.Type())) - } - return true - } - if resolvedv := reflect.ValueOf(resolved); out.Type() == resolvedv.Type() { - // We've resolved to exactly the type we want, so use that. - out.Set(resolvedv) - return true - } - // Perhaps we can use the value as a TextUnmarshaler to - // set its value. - if out.CanAddr() { - u, ok := out.Addr().Interface().(encoding.TextUnmarshaler) - if ok { - var text []byte - if tag == yaml_BINARY_TAG { - text = []byte(resolved.(string)) - } else { - // We let any value be unmarshaled into TextUnmarshaler. - // That might be more lax than we'd like, but the - // TextUnmarshaler itself should bowl out any dubious values. - text = []byte(n.value) - } - err := u.UnmarshalText(text) - if err != nil { - fail(err) - } - return true - } - } - switch out.Kind() { - case reflect.String: - if tag == yaml_BINARY_TAG { - out.SetString(resolved.(string)) - return true - } - if resolved != nil { - out.SetString(n.value) - return true - } - case reflect.Interface: - if resolved == nil { - out.Set(reflect.Zero(out.Type())) - } else if tag == yaml_TIMESTAMP_TAG { - // It looks like a timestamp but for backward compatibility - // reasons we set it as a string, so that code that unmarshals - // timestamp-like values into interface{} will continue to - // see a string and not a time.Time. - // TODO(v3) Drop this. - out.Set(reflect.ValueOf(n.value)) - } else { - out.Set(reflect.ValueOf(resolved)) - } - return true - case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64: - switch resolved := resolved.(type) { - case int: - if !out.OverflowInt(int64(resolved)) { - out.SetInt(int64(resolved)) - return true - } - case int64: - if !out.OverflowInt(resolved) { - out.SetInt(resolved) - return true - } - case uint64: - if resolved <= math.MaxInt64 && !out.OverflowInt(int64(resolved)) { - out.SetInt(int64(resolved)) - return true - } - case float64: - if resolved <= math.MaxInt64 && !out.OverflowInt(int64(resolved)) { - out.SetInt(int64(resolved)) - return true - } - case string: - if out.Type() == durationType { - d, err := time.ParseDuration(resolved) - if err == nil { - out.SetInt(int64(d)) - return true - } - } - } - case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr: - switch resolved := resolved.(type) { - case int: - if resolved >= 0 && !out.OverflowUint(uint64(resolved)) { - out.SetUint(uint64(resolved)) - return true - } - case int64: - if resolved >= 0 && !out.OverflowUint(uint64(resolved)) { - out.SetUint(uint64(resolved)) - return true - } - case uint64: - if !out.OverflowUint(uint64(resolved)) { - out.SetUint(uint64(resolved)) - return true - } - case float64: - if resolved <= math.MaxUint64 && !out.OverflowUint(uint64(resolved)) { - out.SetUint(uint64(resolved)) - return true - } - } - case reflect.Bool: - switch resolved := resolved.(type) { - case bool: - out.SetBool(resolved) - return true - } - case reflect.Float32, reflect.Float64: - switch resolved := resolved.(type) { - case int: - out.SetFloat(float64(resolved)) - return true - case int64: - out.SetFloat(float64(resolved)) - return true - case uint64: - out.SetFloat(float64(resolved)) - return true - case float64: - out.SetFloat(resolved) - return true - } - case reflect.Struct: - if resolvedv := reflect.ValueOf(resolved); out.Type() == resolvedv.Type() { - out.Set(resolvedv) - return true - } - case reflect.Ptr: - if out.Type().Elem() == reflect.TypeOf(resolved) { - // TODO DOes this make sense? When is out a Ptr except when decoding a nil value? - elem := reflect.New(out.Type().Elem()) - elem.Elem().Set(reflect.ValueOf(resolved)) - out.Set(elem) - return true - } - } - d.terror(n, tag, out) - return false -} - -func settableValueOf(i interface{}) reflect.Value { - v := reflect.ValueOf(i) - sv := reflect.New(v.Type()).Elem() - sv.Set(v) - return sv -} - -func (d *decoder) sequence(n *node, out reflect.Value) (good bool) { - l := len(n.children) - - var iface reflect.Value - switch out.Kind() { - case reflect.Slice: - out.Set(reflect.MakeSlice(out.Type(), l, l)) - case reflect.Array: - if l != out.Len() { - failf("invalid array: want %d elements but got %d", out.Len(), l) - } - case reflect.Interface: - // No type hints. Will have to use a generic sequence. - iface = out - out = settableValueOf(make([]interface{}, l)) - default: - d.terror(n, yaml_SEQ_TAG, out) - return false - } - et := out.Type().Elem() - - j := 0 - for i := 0; i < l; i++ { - e := reflect.New(et).Elem() - if ok := d.unmarshal(n.children[i], e); ok { - out.Index(j).Set(e) - j++ - } - } - if out.Kind() != reflect.Array { - out.Set(out.Slice(0, j)) - } - if iface.IsValid() { - iface.Set(out) - } - return true -} - -func (d *decoder) mapping(n *node, out reflect.Value) (good bool) { - switch out.Kind() { - case reflect.Struct: - return d.mappingStruct(n, out) - case reflect.Slice: - return d.mappingSlice(n, out) - case reflect.Map: - // okay - case reflect.Interface: - if d.mapType.Kind() == reflect.Map { - iface := out - out = reflect.MakeMap(d.mapType) - iface.Set(out) - } else { - slicev := reflect.New(d.mapType).Elem() - if !d.mappingSlice(n, slicev) { - return false - } - out.Set(slicev) - return true - } - default: - d.terror(n, yaml_MAP_TAG, out) - return false - } - outt := out.Type() - kt := outt.Key() - et := outt.Elem() - - mapType := d.mapType - if outt.Key() == ifaceType && outt.Elem() == ifaceType { - d.mapType = outt - } - - if out.IsNil() { - out.Set(reflect.MakeMap(outt)) - } - l := len(n.children) - for i := 0; i < l; i += 2 { - if isMerge(n.children[i]) { - d.merge(n.children[i+1], out) - continue - } - k := reflect.New(kt).Elem() - if d.unmarshal(n.children[i], k) { - kkind := k.Kind() - if kkind == reflect.Interface { - kkind = k.Elem().Kind() - } - if kkind == reflect.Map || kkind == reflect.Slice { - failf("invalid map key: %#v", k.Interface()) - } - e := reflect.New(et).Elem() - if d.unmarshal(n.children[i+1], e) { - d.setMapIndex(n.children[i+1], out, k, e) - } - } - } - d.mapType = mapType - return true -} - -func (d *decoder) setMapIndex(n *node, out, k, v reflect.Value) { - if d.strict && out.MapIndex(k) != zeroValue { - d.terrors = append(d.terrors, fmt.Sprintf("line %d: key %#v already set in map", n.line+1, k.Interface())) - return - } - out.SetMapIndex(k, v) -} - -func (d *decoder) mappingSlice(n *node, out reflect.Value) (good bool) { - outt := out.Type() - if outt.Elem() != mapItemType { - d.terror(n, yaml_MAP_TAG, out) - return false - } - - mapType := d.mapType - d.mapType = outt - - var slice []MapItem - var l = len(n.children) - for i := 0; i < l; i += 2 { - if isMerge(n.children[i]) { - d.merge(n.children[i+1], out) - continue - } - item := MapItem{} - k := reflect.ValueOf(&item.Key).Elem() - if d.unmarshal(n.children[i], k) { - v := reflect.ValueOf(&item.Value).Elem() - if d.unmarshal(n.children[i+1], v) { - slice = append(slice, item) - } - } - } - out.Set(reflect.ValueOf(slice)) - d.mapType = mapType - return true -} - -func (d *decoder) mappingStruct(n *node, out reflect.Value) (good bool) { - sinfo, err := getStructInfo(out.Type()) - if err != nil { - panic(err) - } - name := settableValueOf("") - l := len(n.children) - - var inlineMap reflect.Value - var elemType reflect.Type - if sinfo.InlineMap != -1 { - inlineMap = out.Field(sinfo.InlineMap) - inlineMap.Set(reflect.New(inlineMap.Type()).Elem()) - elemType = inlineMap.Type().Elem() - } - - var doneFields []bool - if d.strict { - doneFields = make([]bool, len(sinfo.FieldsList)) - } - for i := 0; i < l; i += 2 { - ni := n.children[i] - if isMerge(ni) { - d.merge(n.children[i+1], out) - continue - } - if !d.unmarshal(ni, name) { - continue - } - if info, ok := sinfo.FieldsMap[name.String()]; ok { - if d.strict { - if doneFields[info.Id] { - d.terrors = append(d.terrors, fmt.Sprintf("line %d: field %s already set in type %s", ni.line+1, name.String(), out.Type())) - continue - } - doneFields[info.Id] = true - } - var field reflect.Value - if info.Inline == nil { - field = out.Field(info.Num) - } else { - field = out.FieldByIndex(info.Inline) - } - d.unmarshal(n.children[i+1], field) - } else if sinfo.InlineMap != -1 { - if inlineMap.IsNil() { - inlineMap.Set(reflect.MakeMap(inlineMap.Type())) - } - value := reflect.New(elemType).Elem() - d.unmarshal(n.children[i+1], value) - d.setMapIndex(n.children[i+1], inlineMap, name, value) - } else if d.strict { - d.terrors = append(d.terrors, fmt.Sprintf("line %d: field %s not found in type %s", ni.line+1, name.String(), out.Type())) - } - } - return true -} - -func failWantMap() { - failf("map merge requires map or sequence of maps as the value") -} - -func (d *decoder) merge(n *node, out reflect.Value) { - switch n.kind { - case mappingNode: - d.unmarshal(n, out) - case aliasNode: - if n.alias != nil && n.alias.kind != mappingNode { - failWantMap() - } - d.unmarshal(n, out) - case sequenceNode: - // Step backwards as earlier nodes take precedence. - for i := len(n.children) - 1; i >= 0; i-- { - ni := n.children[i] - if ni.kind == aliasNode { - if ni.alias != nil && ni.alias.kind != mappingNode { - failWantMap() - } - } else if ni.kind != mappingNode { - failWantMap() - } - d.unmarshal(ni, out) - } - default: - failWantMap() - } -} - -func isMerge(n *node) bool { - return n.kind == scalarNode && n.value == "<<" && (n.implicit == true || n.tag == yaml_MERGE_TAG) -} diff --git a/vendor/gopkg.in/yaml.v2/emitterc.go b/vendor/gopkg.in/yaml.v2/emitterc.go deleted file mode 100644 index a1c2cc5..0000000 --- a/vendor/gopkg.in/yaml.v2/emitterc.go +++ /dev/null @@ -1,1685 +0,0 @@ -package yaml - -import ( - "bytes" - "fmt" -) - -// Flush the buffer if needed. -func flush(emitter *yaml_emitter_t) bool { - if emitter.buffer_pos+5 >= len(emitter.buffer) { - return yaml_emitter_flush(emitter) - } - return true -} - -// Put a character to the output buffer. -func put(emitter *yaml_emitter_t, value byte) bool { - if emitter.buffer_pos+5 >= len(emitter.buffer) && !yaml_emitter_flush(emitter) { - return false - } - emitter.buffer[emitter.buffer_pos] = value - emitter.buffer_pos++ - emitter.column++ - return true -} - -// Put a line break to the output buffer. -func put_break(emitter *yaml_emitter_t) bool { - if emitter.buffer_pos+5 >= len(emitter.buffer) && !yaml_emitter_flush(emitter) { - return false - } - switch emitter.line_break { - case yaml_CR_BREAK: - emitter.buffer[emitter.buffer_pos] = '\r' - emitter.buffer_pos += 1 - case yaml_LN_BREAK: - emitter.buffer[emitter.buffer_pos] = '\n' - emitter.buffer_pos += 1 - case yaml_CRLN_BREAK: - emitter.buffer[emitter.buffer_pos+0] = '\r' - emitter.buffer[emitter.buffer_pos+1] = '\n' - emitter.buffer_pos += 2 - default: - panic("unknown line break setting") - } - emitter.column = 0 - emitter.line++ - return true -} - -// Copy a character from a string into buffer. -func write(emitter *yaml_emitter_t, s []byte, i *int) bool { - if emitter.buffer_pos+5 >= len(emitter.buffer) && !yaml_emitter_flush(emitter) { - return false - } - p := emitter.buffer_pos - w := width(s[*i]) - switch w { - case 4: - emitter.buffer[p+3] = s[*i+3] - fallthrough - case 3: - emitter.buffer[p+2] = s[*i+2] - fallthrough - case 2: - emitter.buffer[p+1] = s[*i+1] - fallthrough - case 1: - emitter.buffer[p+0] = s[*i+0] - default: - panic("unknown character width") - } - emitter.column++ - emitter.buffer_pos += w - *i += w - return true -} - -// Write a whole string into buffer. -func write_all(emitter *yaml_emitter_t, s []byte) bool { - for i := 0; i < len(s); { - if !write(emitter, s, &i) { - return false - } - } - return true -} - -// Copy a line break character from a string into buffer. -func write_break(emitter *yaml_emitter_t, s []byte, i *int) bool { - if s[*i] == '\n' { - if !put_break(emitter) { - return false - } - *i++ - } else { - if !write(emitter, s, i) { - return false - } - emitter.column = 0 - emitter.line++ - } - return true -} - -// Set an emitter error and return false. -func yaml_emitter_set_emitter_error(emitter *yaml_emitter_t, problem string) bool { - emitter.error = yaml_EMITTER_ERROR - emitter.problem = problem - return false -} - -// Emit an event. -func yaml_emitter_emit(emitter *yaml_emitter_t, event *yaml_event_t) bool { - emitter.events = append(emitter.events, *event) - for !yaml_emitter_need_more_events(emitter) { - event := &emitter.events[emitter.events_head] - if !yaml_emitter_analyze_event(emitter, event) { - return false - } - if !yaml_emitter_state_machine(emitter, event) { - return false - } - yaml_event_delete(event) - emitter.events_head++ - } - return true -} - -// Check if we need to accumulate more events before emitting. -// -// We accumulate extra -// - 1 event for DOCUMENT-START -// - 2 events for SEQUENCE-START -// - 3 events for MAPPING-START -// -func yaml_emitter_need_more_events(emitter *yaml_emitter_t) bool { - if emitter.events_head == len(emitter.events) { - return true - } - var accumulate int - switch emitter.events[emitter.events_head].typ { - case yaml_DOCUMENT_START_EVENT: - accumulate = 1 - break - case yaml_SEQUENCE_START_EVENT: - accumulate = 2 - break - case yaml_MAPPING_START_EVENT: - accumulate = 3 - break - default: - return false - } - if len(emitter.events)-emitter.events_head > accumulate { - return false - } - var level int - for i := emitter.events_head; i < len(emitter.events); i++ { - switch emitter.events[i].typ { - case yaml_STREAM_START_EVENT, yaml_DOCUMENT_START_EVENT, yaml_SEQUENCE_START_EVENT, yaml_MAPPING_START_EVENT: - level++ - case yaml_STREAM_END_EVENT, yaml_DOCUMENT_END_EVENT, yaml_SEQUENCE_END_EVENT, yaml_MAPPING_END_EVENT: - level-- - } - if level == 0 { - return false - } - } - return true -} - -// Append a directive to the directives stack. -func yaml_emitter_append_tag_directive(emitter *yaml_emitter_t, value *yaml_tag_directive_t, allow_duplicates bool) bool { - for i := 0; i < len(emitter.tag_directives); i++ { - if bytes.Equal(value.handle, emitter.tag_directives[i].handle) { - if allow_duplicates { - return true - } - return yaml_emitter_set_emitter_error(emitter, "duplicate %TAG directive") - } - } - - // [Go] Do we actually need to copy this given garbage collection - // and the lack of deallocating destructors? - tag_copy := yaml_tag_directive_t{ - handle: make([]byte, len(value.handle)), - prefix: make([]byte, len(value.prefix)), - } - copy(tag_copy.handle, value.handle) - copy(tag_copy.prefix, value.prefix) - emitter.tag_directives = append(emitter.tag_directives, tag_copy) - return true -} - -// Increase the indentation level. -func yaml_emitter_increase_indent(emitter *yaml_emitter_t, flow, indentless bool) bool { - emitter.indents = append(emitter.indents, emitter.indent) - if emitter.indent < 0 { - if flow { - emitter.indent = emitter.best_indent - } else { - emitter.indent = 0 - } - } else if !indentless { - emitter.indent += emitter.best_indent - } - return true -} - -// State dispatcher. -func yaml_emitter_state_machine(emitter *yaml_emitter_t, event *yaml_event_t) bool { - switch emitter.state { - default: - case yaml_EMIT_STREAM_START_STATE: - return yaml_emitter_emit_stream_start(emitter, event) - - case yaml_EMIT_FIRST_DOCUMENT_START_STATE: - return yaml_emitter_emit_document_start(emitter, event, true) - - case yaml_EMIT_DOCUMENT_START_STATE: - return yaml_emitter_emit_document_start(emitter, event, false) - - case yaml_EMIT_DOCUMENT_CONTENT_STATE: - return yaml_emitter_emit_document_content(emitter, event) - - case yaml_EMIT_DOCUMENT_END_STATE: - return yaml_emitter_emit_document_end(emitter, event) - - case yaml_EMIT_FLOW_SEQUENCE_FIRST_ITEM_STATE: - return yaml_emitter_emit_flow_sequence_item(emitter, event, true) - - case yaml_EMIT_FLOW_SEQUENCE_ITEM_STATE: - return yaml_emitter_emit_flow_sequence_item(emitter, event, false) - - case yaml_EMIT_FLOW_MAPPING_FIRST_KEY_STATE: - return yaml_emitter_emit_flow_mapping_key(emitter, event, true) - - case yaml_EMIT_FLOW_MAPPING_KEY_STATE: - return yaml_emitter_emit_flow_mapping_key(emitter, event, false) - - case yaml_EMIT_FLOW_MAPPING_SIMPLE_VALUE_STATE: - return yaml_emitter_emit_flow_mapping_value(emitter, event, true) - - case yaml_EMIT_FLOW_MAPPING_VALUE_STATE: - return yaml_emitter_emit_flow_mapping_value(emitter, event, false) - - case yaml_EMIT_BLOCK_SEQUENCE_FIRST_ITEM_STATE: - return yaml_emitter_emit_block_sequence_item(emitter, event, true) - - case yaml_EMIT_BLOCK_SEQUENCE_ITEM_STATE: - return yaml_emitter_emit_block_sequence_item(emitter, event, false) - - case yaml_EMIT_BLOCK_MAPPING_FIRST_KEY_STATE: - return yaml_emitter_emit_block_mapping_key(emitter, event, true) - - case yaml_EMIT_BLOCK_MAPPING_KEY_STATE: - return yaml_emitter_emit_block_mapping_key(emitter, event, false) - - case yaml_EMIT_BLOCK_MAPPING_SIMPLE_VALUE_STATE: - return yaml_emitter_emit_block_mapping_value(emitter, event, true) - - case yaml_EMIT_BLOCK_MAPPING_VALUE_STATE: - return yaml_emitter_emit_block_mapping_value(emitter, event, false) - - case yaml_EMIT_END_STATE: - return yaml_emitter_set_emitter_error(emitter, "expected nothing after STREAM-END") - } - panic("invalid emitter state") -} - -// Expect STREAM-START. -func yaml_emitter_emit_stream_start(emitter *yaml_emitter_t, event *yaml_event_t) bool { - if event.typ != yaml_STREAM_START_EVENT { - return yaml_emitter_set_emitter_error(emitter, "expected STREAM-START") - } - if emitter.encoding == yaml_ANY_ENCODING { - emitter.encoding = event.encoding - if emitter.encoding == yaml_ANY_ENCODING { - emitter.encoding = yaml_UTF8_ENCODING - } - } - if emitter.best_indent < 2 || emitter.best_indent > 9 { - emitter.best_indent = 2 - } - if emitter.best_width >= 0 && emitter.best_width <= emitter.best_indent*2 { - emitter.best_width = 80 - } - if emitter.best_width < 0 { - emitter.best_width = 1<<31 - 1 - } - if emitter.line_break == yaml_ANY_BREAK { - emitter.line_break = yaml_LN_BREAK - } - - emitter.indent = -1 - emitter.line = 0 - emitter.column = 0 - emitter.whitespace = true - emitter.indention = true - - if emitter.encoding != yaml_UTF8_ENCODING { - if !yaml_emitter_write_bom(emitter) { - return false - } - } - emitter.state = yaml_EMIT_FIRST_DOCUMENT_START_STATE - return true -} - -// Expect DOCUMENT-START or STREAM-END. -func yaml_emitter_emit_document_start(emitter *yaml_emitter_t, event *yaml_event_t, first bool) bool { - - if event.typ == yaml_DOCUMENT_START_EVENT { - - if event.version_directive != nil { - if !yaml_emitter_analyze_version_directive(emitter, event.version_directive) { - return false - } - } - - for i := 0; i < len(event.tag_directives); i++ { - tag_directive := &event.tag_directives[i] - if !yaml_emitter_analyze_tag_directive(emitter, tag_directive) { - return false - } - if !yaml_emitter_append_tag_directive(emitter, tag_directive, false) { - return false - } - } - - for i := 0; i < len(default_tag_directives); i++ { - tag_directive := &default_tag_directives[i] - if !yaml_emitter_append_tag_directive(emitter, tag_directive, true) { - return false - } - } - - implicit := event.implicit - if !first || emitter.canonical { - implicit = false - } - - if emitter.open_ended && (event.version_directive != nil || len(event.tag_directives) > 0) { - if !yaml_emitter_write_indicator(emitter, []byte("..."), true, false, false) { - return false - } - if !yaml_emitter_write_indent(emitter) { - return false - } - } - - if event.version_directive != nil { - implicit = false - if !yaml_emitter_write_indicator(emitter, []byte("%YAML"), true, false, false) { - return false - } - if !yaml_emitter_write_indicator(emitter, []byte("1.1"), true, false, false) { - return false - } - if !yaml_emitter_write_indent(emitter) { - return false - } - } - - if len(event.tag_directives) > 0 { - implicit = false - for i := 0; i < len(event.tag_directives); i++ { - tag_directive := &event.tag_directives[i] - if !yaml_emitter_write_indicator(emitter, []byte("%TAG"), true, false, false) { - return false - } - if !yaml_emitter_write_tag_handle(emitter, tag_directive.handle) { - return false - } - if !yaml_emitter_write_tag_content(emitter, tag_directive.prefix, true) { - return false - } - if !yaml_emitter_write_indent(emitter) { - return false - } - } - } - - if yaml_emitter_check_empty_document(emitter) { - implicit = false - } - if !implicit { - if !yaml_emitter_write_indent(emitter) { - return false - } - if !yaml_emitter_write_indicator(emitter, []byte("---"), true, false, false) { - return false - } - if emitter.canonical { - if !yaml_emitter_write_indent(emitter) { - return false - } - } - } - - emitter.state = yaml_EMIT_DOCUMENT_CONTENT_STATE - return true - } - - if event.typ == yaml_STREAM_END_EVENT { - if emitter.open_ended { - if !yaml_emitter_write_indicator(emitter, []byte("..."), true, false, false) { - return false - } - if !yaml_emitter_write_indent(emitter) { - return false - } - } - if !yaml_emitter_flush(emitter) { - return false - } - emitter.state = yaml_EMIT_END_STATE - return true - } - - return yaml_emitter_set_emitter_error(emitter, "expected DOCUMENT-START or STREAM-END") -} - -// Expect the root node. -func yaml_emitter_emit_document_content(emitter *yaml_emitter_t, event *yaml_event_t) bool { - emitter.states = append(emitter.states, yaml_EMIT_DOCUMENT_END_STATE) - return yaml_emitter_emit_node(emitter, event, true, false, false, false) -} - -// Expect DOCUMENT-END. -func yaml_emitter_emit_document_end(emitter *yaml_emitter_t, event *yaml_event_t) bool { - if event.typ != yaml_DOCUMENT_END_EVENT { - return yaml_emitter_set_emitter_error(emitter, "expected DOCUMENT-END") - } - if !yaml_emitter_write_indent(emitter) { - return false - } - if !event.implicit { - // [Go] Allocate the slice elsewhere. - if !yaml_emitter_write_indicator(emitter, []byte("..."), true, false, false) { - return false - } - if !yaml_emitter_write_indent(emitter) { - return false - } - } - if !yaml_emitter_flush(emitter) { - return false - } - emitter.state = yaml_EMIT_DOCUMENT_START_STATE - emitter.tag_directives = emitter.tag_directives[:0] - return true -} - -// Expect a flow item node. -func yaml_emitter_emit_flow_sequence_item(emitter *yaml_emitter_t, event *yaml_event_t, first bool) bool { - if first { - if !yaml_emitter_write_indicator(emitter, []byte{'['}, true, true, false) { - return false - } - if !yaml_emitter_increase_indent(emitter, true, false) { - return false - } - emitter.flow_level++ - } - - if event.typ == yaml_SEQUENCE_END_EVENT { - emitter.flow_level-- - emitter.indent = emitter.indents[len(emitter.indents)-1] - emitter.indents = emitter.indents[:len(emitter.indents)-1] - if emitter.canonical && !first { - if !yaml_emitter_write_indicator(emitter, []byte{','}, false, false, false) { - return false - } - if !yaml_emitter_write_indent(emitter) { - return false - } - } - if !yaml_emitter_write_indicator(emitter, []byte{']'}, false, false, false) { - return false - } - emitter.state = emitter.states[len(emitter.states)-1] - emitter.states = emitter.states[:len(emitter.states)-1] - - return true - } - - if !first { - if !yaml_emitter_write_indicator(emitter, []byte{','}, false, false, false) { - return false - } - } - - if emitter.canonical || emitter.column > emitter.best_width { - if !yaml_emitter_write_indent(emitter) { - return false - } - } - emitter.states = append(emitter.states, yaml_EMIT_FLOW_SEQUENCE_ITEM_STATE) - return yaml_emitter_emit_node(emitter, event, false, true, false, false) -} - -// Expect a flow key node. -func yaml_emitter_emit_flow_mapping_key(emitter *yaml_emitter_t, event *yaml_event_t, first bool) bool { - if first { - if !yaml_emitter_write_indicator(emitter, []byte{'{'}, true, true, false) { - return false - } - if !yaml_emitter_increase_indent(emitter, true, false) { - return false - } - emitter.flow_level++ - } - - if event.typ == yaml_MAPPING_END_EVENT { - emitter.flow_level-- - emitter.indent = emitter.indents[len(emitter.indents)-1] - emitter.indents = emitter.indents[:len(emitter.indents)-1] - if emitter.canonical && !first { - if !yaml_emitter_write_indicator(emitter, []byte{','}, false, false, false) { - return false - } - if !yaml_emitter_write_indent(emitter) { - return false - } - } - if !yaml_emitter_write_indicator(emitter, []byte{'}'}, false, false, false) { - return false - } - emitter.state = emitter.states[len(emitter.states)-1] - emitter.states = emitter.states[:len(emitter.states)-1] - return true - } - - if !first { - if !yaml_emitter_write_indicator(emitter, []byte{','}, false, false, false) { - return false - } - } - if emitter.canonical || emitter.column > emitter.best_width { - if !yaml_emitter_write_indent(emitter) { - return false - } - } - - if !emitter.canonical && yaml_emitter_check_simple_key(emitter) { - emitter.states = append(emitter.states, yaml_EMIT_FLOW_MAPPING_SIMPLE_VALUE_STATE) - return yaml_emitter_emit_node(emitter, event, false, false, true, true) - } - if !yaml_emitter_write_indicator(emitter, []byte{'?'}, true, false, false) { - return false - } - emitter.states = append(emitter.states, yaml_EMIT_FLOW_MAPPING_VALUE_STATE) - return yaml_emitter_emit_node(emitter, event, false, false, true, false) -} - -// Expect a flow value node. -func yaml_emitter_emit_flow_mapping_value(emitter *yaml_emitter_t, event *yaml_event_t, simple bool) bool { - if simple { - if !yaml_emitter_write_indicator(emitter, []byte{':'}, false, false, false) { - return false - } - } else { - if emitter.canonical || emitter.column > emitter.best_width { - if !yaml_emitter_write_indent(emitter) { - return false - } - } - if !yaml_emitter_write_indicator(emitter, []byte{':'}, true, false, false) { - return false - } - } - emitter.states = append(emitter.states, yaml_EMIT_FLOW_MAPPING_KEY_STATE) - return yaml_emitter_emit_node(emitter, event, false, false, true, false) -} - -// Expect a block item node. -func yaml_emitter_emit_block_sequence_item(emitter *yaml_emitter_t, event *yaml_event_t, first bool) bool { - if first { - if !yaml_emitter_increase_indent(emitter, false, emitter.mapping_context && !emitter.indention) { - return false - } - } - if event.typ == yaml_SEQUENCE_END_EVENT { - emitter.indent = emitter.indents[len(emitter.indents)-1] - emitter.indents = emitter.indents[:len(emitter.indents)-1] - emitter.state = emitter.states[len(emitter.states)-1] - emitter.states = emitter.states[:len(emitter.states)-1] - return true - } - if !yaml_emitter_write_indent(emitter) { - return false - } - if !yaml_emitter_write_indicator(emitter, []byte{'-'}, true, false, true) { - return false - } - emitter.states = append(emitter.states, yaml_EMIT_BLOCK_SEQUENCE_ITEM_STATE) - return yaml_emitter_emit_node(emitter, event, false, true, false, false) -} - -// Expect a block key node. -func yaml_emitter_emit_block_mapping_key(emitter *yaml_emitter_t, event *yaml_event_t, first bool) bool { - if first { - if !yaml_emitter_increase_indent(emitter, false, false) { - return false - } - } - if event.typ == yaml_MAPPING_END_EVENT { - emitter.indent = emitter.indents[len(emitter.indents)-1] - emitter.indents = emitter.indents[:len(emitter.indents)-1] - emitter.state = emitter.states[len(emitter.states)-1] - emitter.states = emitter.states[:len(emitter.states)-1] - return true - } - if !yaml_emitter_write_indent(emitter) { - return false - } - if yaml_emitter_check_simple_key(emitter) { - emitter.states = append(emitter.states, yaml_EMIT_BLOCK_MAPPING_SIMPLE_VALUE_STATE) - return yaml_emitter_emit_node(emitter, event, false, false, true, true) - } - if !yaml_emitter_write_indicator(emitter, []byte{'?'}, true, false, true) { - return false - } - emitter.states = append(emitter.states, yaml_EMIT_BLOCK_MAPPING_VALUE_STATE) - return yaml_emitter_emit_node(emitter, event, false, false, true, false) -} - -// Expect a block value node. -func yaml_emitter_emit_block_mapping_value(emitter *yaml_emitter_t, event *yaml_event_t, simple bool) bool { - if simple { - if !yaml_emitter_write_indicator(emitter, []byte{':'}, false, false, false) { - return false - } - } else { - if !yaml_emitter_write_indent(emitter) { - return false - } - if !yaml_emitter_write_indicator(emitter, []byte{':'}, true, false, true) { - return false - } - } - emitter.states = append(emitter.states, yaml_EMIT_BLOCK_MAPPING_KEY_STATE) - return yaml_emitter_emit_node(emitter, event, false, false, true, false) -} - -// Expect a node. -func yaml_emitter_emit_node(emitter *yaml_emitter_t, event *yaml_event_t, - root bool, sequence bool, mapping bool, simple_key bool) bool { - - emitter.root_context = root - emitter.sequence_context = sequence - emitter.mapping_context = mapping - emitter.simple_key_context = simple_key - - switch event.typ { - case yaml_ALIAS_EVENT: - return yaml_emitter_emit_alias(emitter, event) - case yaml_SCALAR_EVENT: - return yaml_emitter_emit_scalar(emitter, event) - case yaml_SEQUENCE_START_EVENT: - return yaml_emitter_emit_sequence_start(emitter, event) - case yaml_MAPPING_START_EVENT: - return yaml_emitter_emit_mapping_start(emitter, event) - default: - return yaml_emitter_set_emitter_error(emitter, - fmt.Sprintf("expected SCALAR, SEQUENCE-START, MAPPING-START, or ALIAS, but got %v", event.typ)) - } -} - -// Expect ALIAS. -func yaml_emitter_emit_alias(emitter *yaml_emitter_t, event *yaml_event_t) bool { - if !yaml_emitter_process_anchor(emitter) { - return false - } - emitter.state = emitter.states[len(emitter.states)-1] - emitter.states = emitter.states[:len(emitter.states)-1] - return true -} - -// Expect SCALAR. -func yaml_emitter_emit_scalar(emitter *yaml_emitter_t, event *yaml_event_t) bool { - if !yaml_emitter_select_scalar_style(emitter, event) { - return false - } - if !yaml_emitter_process_anchor(emitter) { - return false - } - if !yaml_emitter_process_tag(emitter) { - return false - } - if !yaml_emitter_increase_indent(emitter, true, false) { - return false - } - if !yaml_emitter_process_scalar(emitter) { - return false - } - emitter.indent = emitter.indents[len(emitter.indents)-1] - emitter.indents = emitter.indents[:len(emitter.indents)-1] - emitter.state = emitter.states[len(emitter.states)-1] - emitter.states = emitter.states[:len(emitter.states)-1] - return true -} - -// Expect SEQUENCE-START. -func yaml_emitter_emit_sequence_start(emitter *yaml_emitter_t, event *yaml_event_t) bool { - if !yaml_emitter_process_anchor(emitter) { - return false - } - if !yaml_emitter_process_tag(emitter) { - return false - } - if emitter.flow_level > 0 || emitter.canonical || event.sequence_style() == yaml_FLOW_SEQUENCE_STYLE || - yaml_emitter_check_empty_sequence(emitter) { - emitter.state = yaml_EMIT_FLOW_SEQUENCE_FIRST_ITEM_STATE - } else { - emitter.state = yaml_EMIT_BLOCK_SEQUENCE_FIRST_ITEM_STATE - } - return true -} - -// Expect MAPPING-START. -func yaml_emitter_emit_mapping_start(emitter *yaml_emitter_t, event *yaml_event_t) bool { - if !yaml_emitter_process_anchor(emitter) { - return false - } - if !yaml_emitter_process_tag(emitter) { - return false - } - if emitter.flow_level > 0 || emitter.canonical || event.mapping_style() == yaml_FLOW_MAPPING_STYLE || - yaml_emitter_check_empty_mapping(emitter) { - emitter.state = yaml_EMIT_FLOW_MAPPING_FIRST_KEY_STATE - } else { - emitter.state = yaml_EMIT_BLOCK_MAPPING_FIRST_KEY_STATE - } - return true -} - -// Check if the document content is an empty scalar. -func yaml_emitter_check_empty_document(emitter *yaml_emitter_t) bool { - return false // [Go] Huh? -} - -// Check if the next events represent an empty sequence. -func yaml_emitter_check_empty_sequence(emitter *yaml_emitter_t) bool { - if len(emitter.events)-emitter.events_head < 2 { - return false - } - return emitter.events[emitter.events_head].typ == yaml_SEQUENCE_START_EVENT && - emitter.events[emitter.events_head+1].typ == yaml_SEQUENCE_END_EVENT -} - -// Check if the next events represent an empty mapping. -func yaml_emitter_check_empty_mapping(emitter *yaml_emitter_t) bool { - if len(emitter.events)-emitter.events_head < 2 { - return false - } - return emitter.events[emitter.events_head].typ == yaml_MAPPING_START_EVENT && - emitter.events[emitter.events_head+1].typ == yaml_MAPPING_END_EVENT -} - -// Check if the next node can be expressed as a simple key. -func yaml_emitter_check_simple_key(emitter *yaml_emitter_t) bool { - length := 0 - switch emitter.events[emitter.events_head].typ { - case yaml_ALIAS_EVENT: - length += len(emitter.anchor_data.anchor) - case yaml_SCALAR_EVENT: - if emitter.scalar_data.multiline { - return false - } - length += len(emitter.anchor_data.anchor) + - len(emitter.tag_data.handle) + - len(emitter.tag_data.suffix) + - len(emitter.scalar_data.value) - case yaml_SEQUENCE_START_EVENT: - if !yaml_emitter_check_empty_sequence(emitter) { - return false - } - length += len(emitter.anchor_data.anchor) + - len(emitter.tag_data.handle) + - len(emitter.tag_data.suffix) - case yaml_MAPPING_START_EVENT: - if !yaml_emitter_check_empty_mapping(emitter) { - return false - } - length += len(emitter.anchor_data.anchor) + - len(emitter.tag_data.handle) + - len(emitter.tag_data.suffix) - default: - return false - } - return length <= 128 -} - -// Determine an acceptable scalar style. -func yaml_emitter_select_scalar_style(emitter *yaml_emitter_t, event *yaml_event_t) bool { - - no_tag := len(emitter.tag_data.handle) == 0 && len(emitter.tag_data.suffix) == 0 - if no_tag && !event.implicit && !event.quoted_implicit { - return yaml_emitter_set_emitter_error(emitter, "neither tag nor implicit flags are specified") - } - - style := event.scalar_style() - if style == yaml_ANY_SCALAR_STYLE { - style = yaml_PLAIN_SCALAR_STYLE - } - if emitter.canonical { - style = yaml_DOUBLE_QUOTED_SCALAR_STYLE - } - if emitter.simple_key_context && emitter.scalar_data.multiline { - style = yaml_DOUBLE_QUOTED_SCALAR_STYLE - } - - if style == yaml_PLAIN_SCALAR_STYLE { - if emitter.flow_level > 0 && !emitter.scalar_data.flow_plain_allowed || - emitter.flow_level == 0 && !emitter.scalar_data.block_plain_allowed { - style = yaml_SINGLE_QUOTED_SCALAR_STYLE - } - if len(emitter.scalar_data.value) == 0 && (emitter.flow_level > 0 || emitter.simple_key_context) { - style = yaml_SINGLE_QUOTED_SCALAR_STYLE - } - if no_tag && !event.implicit { - style = yaml_SINGLE_QUOTED_SCALAR_STYLE - } - } - if style == yaml_SINGLE_QUOTED_SCALAR_STYLE { - if !emitter.scalar_data.single_quoted_allowed { - style = yaml_DOUBLE_QUOTED_SCALAR_STYLE - } - } - if style == yaml_LITERAL_SCALAR_STYLE || style == yaml_FOLDED_SCALAR_STYLE { - if !emitter.scalar_data.block_allowed || emitter.flow_level > 0 || emitter.simple_key_context { - style = yaml_DOUBLE_QUOTED_SCALAR_STYLE - } - } - - if no_tag && !event.quoted_implicit && style != yaml_PLAIN_SCALAR_STYLE { - emitter.tag_data.handle = []byte{'!'} - } - emitter.scalar_data.style = style - return true -} - -// Write an anchor. -func yaml_emitter_process_anchor(emitter *yaml_emitter_t) bool { - if emitter.anchor_data.anchor == nil { - return true - } - c := []byte{'&'} - if emitter.anchor_data.alias { - c[0] = '*' - } - if !yaml_emitter_write_indicator(emitter, c, true, false, false) { - return false - } - return yaml_emitter_write_anchor(emitter, emitter.anchor_data.anchor) -} - -// Write a tag. -func yaml_emitter_process_tag(emitter *yaml_emitter_t) bool { - if len(emitter.tag_data.handle) == 0 && len(emitter.tag_data.suffix) == 0 { - return true - } - if len(emitter.tag_data.handle) > 0 { - if !yaml_emitter_write_tag_handle(emitter, emitter.tag_data.handle) { - return false - } - if len(emitter.tag_data.suffix) > 0 { - if !yaml_emitter_write_tag_content(emitter, emitter.tag_data.suffix, false) { - return false - } - } - } else { - // [Go] Allocate these slices elsewhere. - if !yaml_emitter_write_indicator(emitter, []byte("!<"), true, false, false) { - return false - } - if !yaml_emitter_write_tag_content(emitter, emitter.tag_data.suffix, false) { - return false - } - if !yaml_emitter_write_indicator(emitter, []byte{'>'}, false, false, false) { - return false - } - } - return true -} - -// Write a scalar. -func yaml_emitter_process_scalar(emitter *yaml_emitter_t) bool { - switch emitter.scalar_data.style { - case yaml_PLAIN_SCALAR_STYLE: - return yaml_emitter_write_plain_scalar(emitter, emitter.scalar_data.value, !emitter.simple_key_context) - - case yaml_SINGLE_QUOTED_SCALAR_STYLE: - return yaml_emitter_write_single_quoted_scalar(emitter, emitter.scalar_data.value, !emitter.simple_key_context) - - case yaml_DOUBLE_QUOTED_SCALAR_STYLE: - return yaml_emitter_write_double_quoted_scalar(emitter, emitter.scalar_data.value, !emitter.simple_key_context) - - case yaml_LITERAL_SCALAR_STYLE: - return yaml_emitter_write_literal_scalar(emitter, emitter.scalar_data.value) - - case yaml_FOLDED_SCALAR_STYLE: - return yaml_emitter_write_folded_scalar(emitter, emitter.scalar_data.value) - } - panic("unknown scalar style") -} - -// Check if a %YAML directive is valid. -func yaml_emitter_analyze_version_directive(emitter *yaml_emitter_t, version_directive *yaml_version_directive_t) bool { - if version_directive.major != 1 || version_directive.minor != 1 { - return yaml_emitter_set_emitter_error(emitter, "incompatible %YAML directive") - } - return true -} - -// Check if a %TAG directive is valid. -func yaml_emitter_analyze_tag_directive(emitter *yaml_emitter_t, tag_directive *yaml_tag_directive_t) bool { - handle := tag_directive.handle - prefix := tag_directive.prefix - if len(handle) == 0 { - return yaml_emitter_set_emitter_error(emitter, "tag handle must not be empty") - } - if handle[0] != '!' { - return yaml_emitter_set_emitter_error(emitter, "tag handle must start with '!'") - } - if handle[len(handle)-1] != '!' { - return yaml_emitter_set_emitter_error(emitter, "tag handle must end with '!'") - } - for i := 1; i < len(handle)-1; i += width(handle[i]) { - if !is_alpha(handle, i) { - return yaml_emitter_set_emitter_error(emitter, "tag handle must contain alphanumerical characters only") - } - } - if len(prefix) == 0 { - return yaml_emitter_set_emitter_error(emitter, "tag prefix must not be empty") - } - return true -} - -// Check if an anchor is valid. -func yaml_emitter_analyze_anchor(emitter *yaml_emitter_t, anchor []byte, alias bool) bool { - if len(anchor) == 0 { - problem := "anchor value must not be empty" - if alias { - problem = "alias value must not be empty" - } - return yaml_emitter_set_emitter_error(emitter, problem) - } - for i := 0; i < len(anchor); i += width(anchor[i]) { - if !is_alpha(anchor, i) { - problem := "anchor value must contain alphanumerical characters only" - if alias { - problem = "alias value must contain alphanumerical characters only" - } - return yaml_emitter_set_emitter_error(emitter, problem) - } - } - emitter.anchor_data.anchor = anchor - emitter.anchor_data.alias = alias - return true -} - -// Check if a tag is valid. -func yaml_emitter_analyze_tag(emitter *yaml_emitter_t, tag []byte) bool { - if len(tag) == 0 { - return yaml_emitter_set_emitter_error(emitter, "tag value must not be empty") - } - for i := 0; i < len(emitter.tag_directives); i++ { - tag_directive := &emitter.tag_directives[i] - if bytes.HasPrefix(tag, tag_directive.prefix) { - emitter.tag_data.handle = tag_directive.handle - emitter.tag_data.suffix = tag[len(tag_directive.prefix):] - return true - } - } - emitter.tag_data.suffix = tag - return true -} - -// Check if a scalar is valid. -func yaml_emitter_analyze_scalar(emitter *yaml_emitter_t, value []byte) bool { - var ( - block_indicators = false - flow_indicators = false - line_breaks = false - special_characters = false - - leading_space = false - leading_break = false - trailing_space = false - trailing_break = false - break_space = false - space_break = false - - preceded_by_whitespace = false - followed_by_whitespace = false - previous_space = false - previous_break = false - ) - - emitter.scalar_data.value = value - - if len(value) == 0 { - emitter.scalar_data.multiline = false - emitter.scalar_data.flow_plain_allowed = false - emitter.scalar_data.block_plain_allowed = true - emitter.scalar_data.single_quoted_allowed = true - emitter.scalar_data.block_allowed = false - return true - } - - if len(value) >= 3 && ((value[0] == '-' && value[1] == '-' && value[2] == '-') || (value[0] == '.' && value[1] == '.' && value[2] == '.')) { - block_indicators = true - flow_indicators = true - } - - preceded_by_whitespace = true - for i, w := 0, 0; i < len(value); i += w { - w = width(value[i]) - followed_by_whitespace = i+w >= len(value) || is_blank(value, i+w) - - if i == 0 { - switch value[i] { - case '#', ',', '[', ']', '{', '}', '&', '*', '!', '|', '>', '\'', '"', '%', '@', '`': - flow_indicators = true - block_indicators = true - case '?', ':': - flow_indicators = true - if followed_by_whitespace { - block_indicators = true - } - case '-': - if followed_by_whitespace { - flow_indicators = true - block_indicators = true - } - } - } else { - switch value[i] { - case ',', '?', '[', ']', '{', '}': - flow_indicators = true - case ':': - flow_indicators = true - if followed_by_whitespace { - block_indicators = true - } - case '#': - if preceded_by_whitespace { - flow_indicators = true - block_indicators = true - } - } - } - - if !is_printable(value, i) || !is_ascii(value, i) && !emitter.unicode { - special_characters = true - } - if is_space(value, i) { - if i == 0 { - leading_space = true - } - if i+width(value[i]) == len(value) { - trailing_space = true - } - if previous_break { - break_space = true - } - previous_space = true - previous_break = false - } else if is_break(value, i) { - line_breaks = true - if i == 0 { - leading_break = true - } - if i+width(value[i]) == len(value) { - trailing_break = true - } - if previous_space { - space_break = true - } - previous_space = false - previous_break = true - } else { - previous_space = false - previous_break = false - } - - // [Go]: Why 'z'? Couldn't be the end of the string as that's the loop condition. - preceded_by_whitespace = is_blankz(value, i) - } - - emitter.scalar_data.multiline = line_breaks - emitter.scalar_data.flow_plain_allowed = true - emitter.scalar_data.block_plain_allowed = true - emitter.scalar_data.single_quoted_allowed = true - emitter.scalar_data.block_allowed = true - - if leading_space || leading_break || trailing_space || trailing_break { - emitter.scalar_data.flow_plain_allowed = false - emitter.scalar_data.block_plain_allowed = false - } - if trailing_space { - emitter.scalar_data.block_allowed = false - } - if break_space { - emitter.scalar_data.flow_plain_allowed = false - emitter.scalar_data.block_plain_allowed = false - emitter.scalar_data.single_quoted_allowed = false - } - if space_break || special_characters { - emitter.scalar_data.flow_plain_allowed = false - emitter.scalar_data.block_plain_allowed = false - emitter.scalar_data.single_quoted_allowed = false - emitter.scalar_data.block_allowed = false - } - if line_breaks { - emitter.scalar_data.flow_plain_allowed = false - emitter.scalar_data.block_plain_allowed = false - } - if flow_indicators { - emitter.scalar_data.flow_plain_allowed = false - } - if block_indicators { - emitter.scalar_data.block_plain_allowed = false - } - return true -} - -// Check if the event data is valid. -func yaml_emitter_analyze_event(emitter *yaml_emitter_t, event *yaml_event_t) bool { - - emitter.anchor_data.anchor = nil - emitter.tag_data.handle = nil - emitter.tag_data.suffix = nil - emitter.scalar_data.value = nil - - switch event.typ { - case yaml_ALIAS_EVENT: - if !yaml_emitter_analyze_anchor(emitter, event.anchor, true) { - return false - } - - case yaml_SCALAR_EVENT: - if len(event.anchor) > 0 { - if !yaml_emitter_analyze_anchor(emitter, event.anchor, false) { - return false - } - } - if len(event.tag) > 0 && (emitter.canonical || (!event.implicit && !event.quoted_implicit)) { - if !yaml_emitter_analyze_tag(emitter, event.tag) { - return false - } - } - if !yaml_emitter_analyze_scalar(emitter, event.value) { - return false - } - - case yaml_SEQUENCE_START_EVENT: - if len(event.anchor) > 0 { - if !yaml_emitter_analyze_anchor(emitter, event.anchor, false) { - return false - } - } - if len(event.tag) > 0 && (emitter.canonical || !event.implicit) { - if !yaml_emitter_analyze_tag(emitter, event.tag) { - return false - } - } - - case yaml_MAPPING_START_EVENT: - if len(event.anchor) > 0 { - if !yaml_emitter_analyze_anchor(emitter, event.anchor, false) { - return false - } - } - if len(event.tag) > 0 && (emitter.canonical || !event.implicit) { - if !yaml_emitter_analyze_tag(emitter, event.tag) { - return false - } - } - } - return true -} - -// Write the BOM character. -func yaml_emitter_write_bom(emitter *yaml_emitter_t) bool { - if !flush(emitter) { - return false - } - pos := emitter.buffer_pos - emitter.buffer[pos+0] = '\xEF' - emitter.buffer[pos+1] = '\xBB' - emitter.buffer[pos+2] = '\xBF' - emitter.buffer_pos += 3 - return true -} - -func yaml_emitter_write_indent(emitter *yaml_emitter_t) bool { - indent := emitter.indent - if indent < 0 { - indent = 0 - } - if !emitter.indention || emitter.column > indent || (emitter.column == indent && !emitter.whitespace) { - if !put_break(emitter) { - return false - } - } - for emitter.column < indent { - if !put(emitter, ' ') { - return false - } - } - emitter.whitespace = true - emitter.indention = true - return true -} - -func yaml_emitter_write_indicator(emitter *yaml_emitter_t, indicator []byte, need_whitespace, is_whitespace, is_indention bool) bool { - if need_whitespace && !emitter.whitespace { - if !put(emitter, ' ') { - return false - } - } - if !write_all(emitter, indicator) { - return false - } - emitter.whitespace = is_whitespace - emitter.indention = (emitter.indention && is_indention) - emitter.open_ended = false - return true -} - -func yaml_emitter_write_anchor(emitter *yaml_emitter_t, value []byte) bool { - if !write_all(emitter, value) { - return false - } - emitter.whitespace = false - emitter.indention = false - return true -} - -func yaml_emitter_write_tag_handle(emitter *yaml_emitter_t, value []byte) bool { - if !emitter.whitespace { - if !put(emitter, ' ') { - return false - } - } - if !write_all(emitter, value) { - return false - } - emitter.whitespace = false - emitter.indention = false - return true -} - -func yaml_emitter_write_tag_content(emitter *yaml_emitter_t, value []byte, need_whitespace bool) bool { - if need_whitespace && !emitter.whitespace { - if !put(emitter, ' ') { - return false - } - } - for i := 0; i < len(value); { - var must_write bool - switch value[i] { - case ';', '/', '?', ':', '@', '&', '=', '+', '$', ',', '_', '.', '~', '*', '\'', '(', ')', '[', ']': - must_write = true - default: - must_write = is_alpha(value, i) - } - if must_write { - if !write(emitter, value, &i) { - return false - } - } else { - w := width(value[i]) - for k := 0; k < w; k++ { - octet := value[i] - i++ - if !put(emitter, '%') { - return false - } - - c := octet >> 4 - if c < 10 { - c += '0' - } else { - c += 'A' - 10 - } - if !put(emitter, c) { - return false - } - - c = octet & 0x0f - if c < 10 { - c += '0' - } else { - c += 'A' - 10 - } - if !put(emitter, c) { - return false - } - } - } - } - emitter.whitespace = false - emitter.indention = false - return true -} - -func yaml_emitter_write_plain_scalar(emitter *yaml_emitter_t, value []byte, allow_breaks bool) bool { - if !emitter.whitespace { - if !put(emitter, ' ') { - return false - } - } - - spaces := false - breaks := false - for i := 0; i < len(value); { - if is_space(value, i) { - if allow_breaks && !spaces && emitter.column > emitter.best_width && !is_space(value, i+1) { - if !yaml_emitter_write_indent(emitter) { - return false - } - i += width(value[i]) - } else { - if !write(emitter, value, &i) { - return false - } - } - spaces = true - } else if is_break(value, i) { - if !breaks && value[i] == '\n' { - if !put_break(emitter) { - return false - } - } - if !write_break(emitter, value, &i) { - return false - } - emitter.indention = true - breaks = true - } else { - if breaks { - if !yaml_emitter_write_indent(emitter) { - return false - } - } - if !write(emitter, value, &i) { - return false - } - emitter.indention = false - spaces = false - breaks = false - } - } - - emitter.whitespace = false - emitter.indention = false - if emitter.root_context { - emitter.open_ended = true - } - - return true -} - -func yaml_emitter_write_single_quoted_scalar(emitter *yaml_emitter_t, value []byte, allow_breaks bool) bool { - - if !yaml_emitter_write_indicator(emitter, []byte{'\''}, true, false, false) { - return false - } - - spaces := false - breaks := false - for i := 0; i < len(value); { - if is_space(value, i) { - if allow_breaks && !spaces && emitter.column > emitter.best_width && i > 0 && i < len(value)-1 && !is_space(value, i+1) { - if !yaml_emitter_write_indent(emitter) { - return false - } - i += width(value[i]) - } else { - if !write(emitter, value, &i) { - return false - } - } - spaces = true - } else if is_break(value, i) { - if !breaks && value[i] == '\n' { - if !put_break(emitter) { - return false - } - } - if !write_break(emitter, value, &i) { - return false - } - emitter.indention = true - breaks = true - } else { - if breaks { - if !yaml_emitter_write_indent(emitter) { - return false - } - } - if value[i] == '\'' { - if !put(emitter, '\'') { - return false - } - } - if !write(emitter, value, &i) { - return false - } - emitter.indention = false - spaces = false - breaks = false - } - } - if !yaml_emitter_write_indicator(emitter, []byte{'\''}, false, false, false) { - return false - } - emitter.whitespace = false - emitter.indention = false - return true -} - -func yaml_emitter_write_double_quoted_scalar(emitter *yaml_emitter_t, value []byte, allow_breaks bool) bool { - spaces := false - if !yaml_emitter_write_indicator(emitter, []byte{'"'}, true, false, false) { - return false - } - - for i := 0; i < len(value); { - if !is_printable(value, i) || (!emitter.unicode && !is_ascii(value, i)) || - is_bom(value, i) || is_break(value, i) || - value[i] == '"' || value[i] == '\\' { - - octet := value[i] - - var w int - var v rune - switch { - case octet&0x80 == 0x00: - w, v = 1, rune(octet&0x7F) - case octet&0xE0 == 0xC0: - w, v = 2, rune(octet&0x1F) - case octet&0xF0 == 0xE0: - w, v = 3, rune(octet&0x0F) - case octet&0xF8 == 0xF0: - w, v = 4, rune(octet&0x07) - } - for k := 1; k < w; k++ { - octet = value[i+k] - v = (v << 6) + (rune(octet) & 0x3F) - } - i += w - - if !put(emitter, '\\') { - return false - } - - var ok bool - switch v { - case 0x00: - ok = put(emitter, '0') - case 0x07: - ok = put(emitter, 'a') - case 0x08: - ok = put(emitter, 'b') - case 0x09: - ok = put(emitter, 't') - case 0x0A: - ok = put(emitter, 'n') - case 0x0b: - ok = put(emitter, 'v') - case 0x0c: - ok = put(emitter, 'f') - case 0x0d: - ok = put(emitter, 'r') - case 0x1b: - ok = put(emitter, 'e') - case 0x22: - ok = put(emitter, '"') - case 0x5c: - ok = put(emitter, '\\') - case 0x85: - ok = put(emitter, 'N') - case 0xA0: - ok = put(emitter, '_') - case 0x2028: - ok = put(emitter, 'L') - case 0x2029: - ok = put(emitter, 'P') - default: - if v <= 0xFF { - ok = put(emitter, 'x') - w = 2 - } else if v <= 0xFFFF { - ok = put(emitter, 'u') - w = 4 - } else { - ok = put(emitter, 'U') - w = 8 - } - for k := (w - 1) * 4; ok && k >= 0; k -= 4 { - digit := byte((v >> uint(k)) & 0x0F) - if digit < 10 { - ok = put(emitter, digit+'0') - } else { - ok = put(emitter, digit+'A'-10) - } - } - } - if !ok { - return false - } - spaces = false - } else if is_space(value, i) { - if allow_breaks && !spaces && emitter.column > emitter.best_width && i > 0 && i < len(value)-1 { - if !yaml_emitter_write_indent(emitter) { - return false - } - if is_space(value, i+1) { - if !put(emitter, '\\') { - return false - } - } - i += width(value[i]) - } else if !write(emitter, value, &i) { - return false - } - spaces = true - } else { - if !write(emitter, value, &i) { - return false - } - spaces = false - } - } - if !yaml_emitter_write_indicator(emitter, []byte{'"'}, false, false, false) { - return false - } - emitter.whitespace = false - emitter.indention = false - return true -} - -func yaml_emitter_write_block_scalar_hints(emitter *yaml_emitter_t, value []byte) bool { - if is_space(value, 0) || is_break(value, 0) { - indent_hint := []byte{'0' + byte(emitter.best_indent)} - if !yaml_emitter_write_indicator(emitter, indent_hint, false, false, false) { - return false - } - } - - emitter.open_ended = false - - var chomp_hint [1]byte - if len(value) == 0 { - chomp_hint[0] = '-' - } else { - i := len(value) - 1 - for value[i]&0xC0 == 0x80 { - i-- - } - if !is_break(value, i) { - chomp_hint[0] = '-' - } else if i == 0 { - chomp_hint[0] = '+' - emitter.open_ended = true - } else { - i-- - for value[i]&0xC0 == 0x80 { - i-- - } - if is_break(value, i) { - chomp_hint[0] = '+' - emitter.open_ended = true - } - } - } - if chomp_hint[0] != 0 { - if !yaml_emitter_write_indicator(emitter, chomp_hint[:], false, false, false) { - return false - } - } - return true -} - -func yaml_emitter_write_literal_scalar(emitter *yaml_emitter_t, value []byte) bool { - if !yaml_emitter_write_indicator(emitter, []byte{'|'}, true, false, false) { - return false - } - if !yaml_emitter_write_block_scalar_hints(emitter, value) { - return false - } - if !put_break(emitter) { - return false - } - emitter.indention = true - emitter.whitespace = true - breaks := true - for i := 0; i < len(value); { - if is_break(value, i) { - if !write_break(emitter, value, &i) { - return false - } - emitter.indention = true - breaks = true - } else { - if breaks { - if !yaml_emitter_write_indent(emitter) { - return false - } - } - if !write(emitter, value, &i) { - return false - } - emitter.indention = false - breaks = false - } - } - - return true -} - -func yaml_emitter_write_folded_scalar(emitter *yaml_emitter_t, value []byte) bool { - if !yaml_emitter_write_indicator(emitter, []byte{'>'}, true, false, false) { - return false - } - if !yaml_emitter_write_block_scalar_hints(emitter, value) { - return false - } - - if !put_break(emitter) { - return false - } - emitter.indention = true - emitter.whitespace = true - - breaks := true - leading_spaces := true - for i := 0; i < len(value); { - if is_break(value, i) { - if !breaks && !leading_spaces && value[i] == '\n' { - k := 0 - for is_break(value, k) { - k += width(value[k]) - } - if !is_blankz(value, k) { - if !put_break(emitter) { - return false - } - } - } - if !write_break(emitter, value, &i) { - return false - } - emitter.indention = true - breaks = true - } else { - if breaks { - if !yaml_emitter_write_indent(emitter) { - return false - } - leading_spaces = is_blank(value, i) - } - if !breaks && is_space(value, i) && !is_space(value, i+1) && emitter.column > emitter.best_width { - if !yaml_emitter_write_indent(emitter) { - return false - } - i += width(value[i]) - } else { - if !write(emitter, value, &i) { - return false - } - } - emitter.indention = false - breaks = false - } - } - return true -} diff --git a/vendor/gopkg.in/yaml.v2/encode.go b/vendor/gopkg.in/yaml.v2/encode.go deleted file mode 100644 index 0ee738e..0000000 --- a/vendor/gopkg.in/yaml.v2/encode.go +++ /dev/null @@ -1,390 +0,0 @@ -package yaml - -import ( - "encoding" - "fmt" - "io" - "reflect" - "regexp" - "sort" - "strconv" - "strings" - "time" - "unicode/utf8" -) - -// jsonNumber is the interface of the encoding/json.Number datatype. -// Repeating the interface here avoids a dependency on encoding/json, and also -// supports other libraries like jsoniter, which use a similar datatype with -// the same interface. Detecting this interface is useful when dealing with -// structures containing json.Number, which is a string under the hood. The -// encoder should prefer the use of Int64(), Float64() and string(), in that -// order, when encoding this type. -type jsonNumber interface { - Float64() (float64, error) - Int64() (int64, error) - String() string -} - -type encoder struct { - emitter yaml_emitter_t - event yaml_event_t - out []byte - flow bool - // doneInit holds whether the initial stream_start_event has been - // emitted. - doneInit bool -} - -func newEncoder() *encoder { - e := &encoder{} - yaml_emitter_initialize(&e.emitter) - yaml_emitter_set_output_string(&e.emitter, &e.out) - yaml_emitter_set_unicode(&e.emitter, true) - return e -} - -func newEncoderWithWriter(w io.Writer) *encoder { - e := &encoder{} - yaml_emitter_initialize(&e.emitter) - yaml_emitter_set_output_writer(&e.emitter, w) - yaml_emitter_set_unicode(&e.emitter, true) - return e -} - -func (e *encoder) init() { - if e.doneInit { - return - } - yaml_stream_start_event_initialize(&e.event, yaml_UTF8_ENCODING) - e.emit() - e.doneInit = true -} - -func (e *encoder) finish() { - e.emitter.open_ended = false - yaml_stream_end_event_initialize(&e.event) - e.emit() -} - -func (e *encoder) destroy() { - yaml_emitter_delete(&e.emitter) -} - -func (e *encoder) emit() { - // This will internally delete the e.event value. - e.must(yaml_emitter_emit(&e.emitter, &e.event)) -} - -func (e *encoder) must(ok bool) { - if !ok { - msg := e.emitter.problem - if msg == "" { - msg = "unknown problem generating YAML content" - } - failf("%s", msg) - } -} - -func (e *encoder) marshalDoc(tag string, in reflect.Value) { - e.init() - yaml_document_start_event_initialize(&e.event, nil, nil, true) - e.emit() - e.marshal(tag, in) - yaml_document_end_event_initialize(&e.event, true) - e.emit() -} - -func (e *encoder) marshal(tag string, in reflect.Value) { - if !in.IsValid() || in.Kind() == reflect.Ptr && in.IsNil() { - e.nilv() - return - } - iface := in.Interface() - switch m := iface.(type) { - case jsonNumber: - integer, err := m.Int64() - if err == nil { - // In this case the json.Number is a valid int64 - in = reflect.ValueOf(integer) - break - } - float, err := m.Float64() - if err == nil { - // In this case the json.Number is a valid float64 - in = reflect.ValueOf(float) - break - } - // fallback case - no number could be obtained - in = reflect.ValueOf(m.String()) - case time.Time, *time.Time: - // Although time.Time implements TextMarshaler, - // we don't want to treat it as a string for YAML - // purposes because YAML has special support for - // timestamps. - case Marshaler: - v, err := m.MarshalYAML() - if err != nil { - fail(err) - } - if v == nil { - e.nilv() - return - } - in = reflect.ValueOf(v) - case encoding.TextMarshaler: - text, err := m.MarshalText() - if err != nil { - fail(err) - } - in = reflect.ValueOf(string(text)) - case nil: - e.nilv() - return - } - switch in.Kind() { - case reflect.Interface: - e.marshal(tag, in.Elem()) - case reflect.Map: - e.mapv(tag, in) - case reflect.Ptr: - if in.Type() == ptrTimeType { - e.timev(tag, in.Elem()) - } else { - e.marshal(tag, in.Elem()) - } - case reflect.Struct: - if in.Type() == timeType { - e.timev(tag, in) - } else { - e.structv(tag, in) - } - case reflect.Slice, reflect.Array: - if in.Type().Elem() == mapItemType { - e.itemsv(tag, in) - } else { - e.slicev(tag, in) - } - case reflect.String: - e.stringv(tag, in) - case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64: - if in.Type() == durationType { - e.stringv(tag, reflect.ValueOf(iface.(time.Duration).String())) - } else { - e.intv(tag, in) - } - case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr: - e.uintv(tag, in) - case reflect.Float32, reflect.Float64: - e.floatv(tag, in) - case reflect.Bool: - e.boolv(tag, in) - default: - panic("cannot marshal type: " + in.Type().String()) - } -} - -func (e *encoder) mapv(tag string, in reflect.Value) { - e.mappingv(tag, func() { - keys := keyList(in.MapKeys()) - sort.Sort(keys) - for _, k := range keys { - e.marshal("", k) - e.marshal("", in.MapIndex(k)) - } - }) -} - -func (e *encoder) itemsv(tag string, in reflect.Value) { - e.mappingv(tag, func() { - slice := in.Convert(reflect.TypeOf([]MapItem{})).Interface().([]MapItem) - for _, item := range slice { - e.marshal("", reflect.ValueOf(item.Key)) - e.marshal("", reflect.ValueOf(item.Value)) - } - }) -} - -func (e *encoder) structv(tag string, in reflect.Value) { - sinfo, err := getStructInfo(in.Type()) - if err != nil { - panic(err) - } - e.mappingv(tag, func() { - for _, info := range sinfo.FieldsList { - var value reflect.Value - if info.Inline == nil { - value = in.Field(info.Num) - } else { - value = in.FieldByIndex(info.Inline) - } - if info.OmitEmpty && isZero(value) { - continue - } - e.marshal("", reflect.ValueOf(info.Key)) - e.flow = info.Flow - e.marshal("", value) - } - if sinfo.InlineMap >= 0 { - m := in.Field(sinfo.InlineMap) - if m.Len() > 0 { - e.flow = false - keys := keyList(m.MapKeys()) - sort.Sort(keys) - for _, k := range keys { - if _, found := sinfo.FieldsMap[k.String()]; found { - panic(fmt.Sprintf("Can't have key %q in inlined map; conflicts with struct field", k.String())) - } - e.marshal("", k) - e.flow = false - e.marshal("", m.MapIndex(k)) - } - } - } - }) -} - -func (e *encoder) mappingv(tag string, f func()) { - implicit := tag == "" - style := yaml_BLOCK_MAPPING_STYLE - if e.flow { - e.flow = false - style = yaml_FLOW_MAPPING_STYLE - } - yaml_mapping_start_event_initialize(&e.event, nil, []byte(tag), implicit, style) - e.emit() - f() - yaml_mapping_end_event_initialize(&e.event) - e.emit() -} - -func (e *encoder) slicev(tag string, in reflect.Value) { - implicit := tag == "" - style := yaml_BLOCK_SEQUENCE_STYLE - if e.flow { - e.flow = false - style = yaml_FLOW_SEQUENCE_STYLE - } - e.must(yaml_sequence_start_event_initialize(&e.event, nil, []byte(tag), implicit, style)) - e.emit() - n := in.Len() - for i := 0; i < n; i++ { - e.marshal("", in.Index(i)) - } - e.must(yaml_sequence_end_event_initialize(&e.event)) - e.emit() -} - -// isBase60 returns whether s is in base 60 notation as defined in YAML 1.1. -// -// The base 60 float notation in YAML 1.1 is a terrible idea and is unsupported -// in YAML 1.2 and by this package, but these should be marshalled quoted for -// the time being for compatibility with other parsers. -func isBase60Float(s string) (result bool) { - // Fast path. - if s == "" { - return false - } - c := s[0] - if !(c == '+' || c == '-' || c >= '0' && c <= '9') || strings.IndexByte(s, ':') < 0 { - return false - } - // Do the full match. - return base60float.MatchString(s) -} - -// From http://yaml.org/type/float.html, except the regular expression there -// is bogus. In practice parsers do not enforce the "\.[0-9_]*" suffix. -var base60float = regexp.MustCompile(`^[-+]?[0-9][0-9_]*(?::[0-5]?[0-9])+(?:\.[0-9_]*)?$`) - -func (e *encoder) stringv(tag string, in reflect.Value) { - var style yaml_scalar_style_t - s := in.String() - canUsePlain := true - switch { - case !utf8.ValidString(s): - if tag == yaml_BINARY_TAG { - failf("explicitly tagged !!binary data must be base64-encoded") - } - if tag != "" { - failf("cannot marshal invalid UTF-8 data as %s", shortTag(tag)) - } - // It can't be encoded directly as YAML so use a binary tag - // and encode it as base64. - tag = yaml_BINARY_TAG - s = encodeBase64(s) - case tag == "": - // Check to see if it would resolve to a specific - // tag when encoded unquoted. If it doesn't, - // there's no need to quote it. - rtag, _ := resolve("", s) - canUsePlain = rtag == yaml_STR_TAG && !isBase60Float(s) - } - // Note: it's possible for user code to emit invalid YAML - // if they explicitly specify a tag and a string containing - // text that's incompatible with that tag. - switch { - case strings.Contains(s, "\n"): - style = yaml_LITERAL_SCALAR_STYLE - case canUsePlain: - style = yaml_PLAIN_SCALAR_STYLE - default: - style = yaml_DOUBLE_QUOTED_SCALAR_STYLE - } - e.emitScalar(s, "", tag, style) -} - -func (e *encoder) boolv(tag string, in reflect.Value) { - var s string - if in.Bool() { - s = "true" - } else { - s = "false" - } - e.emitScalar(s, "", tag, yaml_PLAIN_SCALAR_STYLE) -} - -func (e *encoder) intv(tag string, in reflect.Value) { - s := strconv.FormatInt(in.Int(), 10) - e.emitScalar(s, "", tag, yaml_PLAIN_SCALAR_STYLE) -} - -func (e *encoder) uintv(tag string, in reflect.Value) { - s := strconv.FormatUint(in.Uint(), 10) - e.emitScalar(s, "", tag, yaml_PLAIN_SCALAR_STYLE) -} - -func (e *encoder) timev(tag string, in reflect.Value) { - t := in.Interface().(time.Time) - s := t.Format(time.RFC3339Nano) - e.emitScalar(s, "", tag, yaml_PLAIN_SCALAR_STYLE) -} - -func (e *encoder) floatv(tag string, in reflect.Value) { - // Issue #352: When formatting, use the precision of the underlying value - precision := 64 - if in.Kind() == reflect.Float32 { - precision = 32 - } - - s := strconv.FormatFloat(in.Float(), 'g', -1, precision) - switch s { - case "+Inf": - s = ".inf" - case "-Inf": - s = "-.inf" - case "NaN": - s = ".nan" - } - e.emitScalar(s, "", tag, yaml_PLAIN_SCALAR_STYLE) -} - -func (e *encoder) nilv() { - e.emitScalar("null", "", "", yaml_PLAIN_SCALAR_STYLE) -} - -func (e *encoder) emitScalar(value, anchor, tag string, style yaml_scalar_style_t) { - implicit := tag == "" - e.must(yaml_scalar_event_initialize(&e.event, []byte(anchor), []byte(tag), []byte(value), implicit, implicit, style)) - e.emit() -} diff --git a/vendor/gopkg.in/yaml.v2/go.mod b/vendor/gopkg.in/yaml.v2/go.mod deleted file mode 100644 index 2cbb85a..0000000 --- a/vendor/gopkg.in/yaml.v2/go.mod +++ /dev/null @@ -1,5 +0,0 @@ -module gopkg.in/yaml.v2 - -go 1.15 - -require gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 diff --git a/vendor/gopkg.in/yaml.v2/parserc.go b/vendor/gopkg.in/yaml.v2/parserc.go deleted file mode 100644 index 81d05df..0000000 --- a/vendor/gopkg.in/yaml.v2/parserc.go +++ /dev/null @@ -1,1095 +0,0 @@ -package yaml - -import ( - "bytes" -) - -// The parser implements the following grammar: -// -// stream ::= STREAM-START implicit_document? explicit_document* STREAM-END -// implicit_document ::= block_node DOCUMENT-END* -// explicit_document ::= DIRECTIVE* DOCUMENT-START block_node? DOCUMENT-END* -// block_node_or_indentless_sequence ::= -// ALIAS -// | properties (block_content | indentless_block_sequence)? -// | block_content -// | indentless_block_sequence -// block_node ::= ALIAS -// | properties block_content? -// | block_content -// flow_node ::= ALIAS -// | properties flow_content? -// | flow_content -// properties ::= TAG ANCHOR? | ANCHOR TAG? -// block_content ::= block_collection | flow_collection | SCALAR -// flow_content ::= flow_collection | SCALAR -// block_collection ::= block_sequence | block_mapping -// flow_collection ::= flow_sequence | flow_mapping -// block_sequence ::= BLOCK-SEQUENCE-START (BLOCK-ENTRY block_node?)* BLOCK-END -// indentless_sequence ::= (BLOCK-ENTRY block_node?)+ -// block_mapping ::= BLOCK-MAPPING_START -// ((KEY block_node_or_indentless_sequence?)? -// (VALUE block_node_or_indentless_sequence?)?)* -// BLOCK-END -// flow_sequence ::= FLOW-SEQUENCE-START -// (flow_sequence_entry FLOW-ENTRY)* -// flow_sequence_entry? -// FLOW-SEQUENCE-END -// flow_sequence_entry ::= flow_node | KEY flow_node? (VALUE flow_node?)? -// flow_mapping ::= FLOW-MAPPING-START -// (flow_mapping_entry FLOW-ENTRY)* -// flow_mapping_entry? -// FLOW-MAPPING-END -// flow_mapping_entry ::= flow_node | KEY flow_node? (VALUE flow_node?)? - -// Peek the next token in the token queue. -func peek_token(parser *yaml_parser_t) *yaml_token_t { - if parser.token_available || yaml_parser_fetch_more_tokens(parser) { - return &parser.tokens[parser.tokens_head] - } - return nil -} - -// Remove the next token from the queue (must be called after peek_token). -func skip_token(parser *yaml_parser_t) { - parser.token_available = false - parser.tokens_parsed++ - parser.stream_end_produced = parser.tokens[parser.tokens_head].typ == yaml_STREAM_END_TOKEN - parser.tokens_head++ -} - -// Get the next event. -func yaml_parser_parse(parser *yaml_parser_t, event *yaml_event_t) bool { - // Erase the event object. - *event = yaml_event_t{} - - // No events after the end of the stream or error. - if parser.stream_end_produced || parser.error != yaml_NO_ERROR || parser.state == yaml_PARSE_END_STATE { - return true - } - - // Generate the next event. - return yaml_parser_state_machine(parser, event) -} - -// Set parser error. -func yaml_parser_set_parser_error(parser *yaml_parser_t, problem string, problem_mark yaml_mark_t) bool { - parser.error = yaml_PARSER_ERROR - parser.problem = problem - parser.problem_mark = problem_mark - return false -} - -func yaml_parser_set_parser_error_context(parser *yaml_parser_t, context string, context_mark yaml_mark_t, problem string, problem_mark yaml_mark_t) bool { - parser.error = yaml_PARSER_ERROR - parser.context = context - parser.context_mark = context_mark - parser.problem = problem - parser.problem_mark = problem_mark - return false -} - -// State dispatcher. -func yaml_parser_state_machine(parser *yaml_parser_t, event *yaml_event_t) bool { - //trace("yaml_parser_state_machine", "state:", parser.state.String()) - - switch parser.state { - case yaml_PARSE_STREAM_START_STATE: - return yaml_parser_parse_stream_start(parser, event) - - case yaml_PARSE_IMPLICIT_DOCUMENT_START_STATE: - return yaml_parser_parse_document_start(parser, event, true) - - case yaml_PARSE_DOCUMENT_START_STATE: - return yaml_parser_parse_document_start(parser, event, false) - - case yaml_PARSE_DOCUMENT_CONTENT_STATE: - return yaml_parser_parse_document_content(parser, event) - - case yaml_PARSE_DOCUMENT_END_STATE: - return yaml_parser_parse_document_end(parser, event) - - case yaml_PARSE_BLOCK_NODE_STATE: - return yaml_parser_parse_node(parser, event, true, false) - - case yaml_PARSE_BLOCK_NODE_OR_INDENTLESS_SEQUENCE_STATE: - return yaml_parser_parse_node(parser, event, true, true) - - case yaml_PARSE_FLOW_NODE_STATE: - return yaml_parser_parse_node(parser, event, false, false) - - case yaml_PARSE_BLOCK_SEQUENCE_FIRST_ENTRY_STATE: - return yaml_parser_parse_block_sequence_entry(parser, event, true) - - case yaml_PARSE_BLOCK_SEQUENCE_ENTRY_STATE: - return yaml_parser_parse_block_sequence_entry(parser, event, false) - - case yaml_PARSE_INDENTLESS_SEQUENCE_ENTRY_STATE: - return yaml_parser_parse_indentless_sequence_entry(parser, event) - - case yaml_PARSE_BLOCK_MAPPING_FIRST_KEY_STATE: - return yaml_parser_parse_block_mapping_key(parser, event, true) - - case yaml_PARSE_BLOCK_MAPPING_KEY_STATE: - return yaml_parser_parse_block_mapping_key(parser, event, false) - - case yaml_PARSE_BLOCK_MAPPING_VALUE_STATE: - return yaml_parser_parse_block_mapping_value(parser, event) - - case yaml_PARSE_FLOW_SEQUENCE_FIRST_ENTRY_STATE: - return yaml_parser_parse_flow_sequence_entry(parser, event, true) - - case yaml_PARSE_FLOW_SEQUENCE_ENTRY_STATE: - return yaml_parser_parse_flow_sequence_entry(parser, event, false) - - case yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_KEY_STATE: - return yaml_parser_parse_flow_sequence_entry_mapping_key(parser, event) - - case yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_VALUE_STATE: - return yaml_parser_parse_flow_sequence_entry_mapping_value(parser, event) - - case yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_END_STATE: - return yaml_parser_parse_flow_sequence_entry_mapping_end(parser, event) - - case yaml_PARSE_FLOW_MAPPING_FIRST_KEY_STATE: - return yaml_parser_parse_flow_mapping_key(parser, event, true) - - case yaml_PARSE_FLOW_MAPPING_KEY_STATE: - return yaml_parser_parse_flow_mapping_key(parser, event, false) - - case yaml_PARSE_FLOW_MAPPING_VALUE_STATE: - return yaml_parser_parse_flow_mapping_value(parser, event, false) - - case yaml_PARSE_FLOW_MAPPING_EMPTY_VALUE_STATE: - return yaml_parser_parse_flow_mapping_value(parser, event, true) - - default: - panic("invalid parser state") - } -} - -// Parse the production: -// stream ::= STREAM-START implicit_document? explicit_document* STREAM-END -// ************ -func yaml_parser_parse_stream_start(parser *yaml_parser_t, event *yaml_event_t) bool { - token := peek_token(parser) - if token == nil { - return false - } - if token.typ != yaml_STREAM_START_TOKEN { - return yaml_parser_set_parser_error(parser, "did not find expected ", token.start_mark) - } - parser.state = yaml_PARSE_IMPLICIT_DOCUMENT_START_STATE - *event = yaml_event_t{ - typ: yaml_STREAM_START_EVENT, - start_mark: token.start_mark, - end_mark: token.end_mark, - encoding: token.encoding, - } - skip_token(parser) - return true -} - -// Parse the productions: -// implicit_document ::= block_node DOCUMENT-END* -// * -// explicit_document ::= DIRECTIVE* DOCUMENT-START block_node? DOCUMENT-END* -// ************************* -func yaml_parser_parse_document_start(parser *yaml_parser_t, event *yaml_event_t, implicit bool) bool { - - token := peek_token(parser) - if token == nil { - return false - } - - // Parse extra document end indicators. - if !implicit { - for token.typ == yaml_DOCUMENT_END_TOKEN { - skip_token(parser) - token = peek_token(parser) - if token == nil { - return false - } - } - } - - if implicit && token.typ != yaml_VERSION_DIRECTIVE_TOKEN && - token.typ != yaml_TAG_DIRECTIVE_TOKEN && - token.typ != yaml_DOCUMENT_START_TOKEN && - token.typ != yaml_STREAM_END_TOKEN { - // Parse an implicit document. - if !yaml_parser_process_directives(parser, nil, nil) { - return false - } - parser.states = append(parser.states, yaml_PARSE_DOCUMENT_END_STATE) - parser.state = yaml_PARSE_BLOCK_NODE_STATE - - *event = yaml_event_t{ - typ: yaml_DOCUMENT_START_EVENT, - start_mark: token.start_mark, - end_mark: token.end_mark, - } - - } else if token.typ != yaml_STREAM_END_TOKEN { - // Parse an explicit document. - var version_directive *yaml_version_directive_t - var tag_directives []yaml_tag_directive_t - start_mark := token.start_mark - if !yaml_parser_process_directives(parser, &version_directive, &tag_directives) { - return false - } - token = peek_token(parser) - if token == nil { - return false - } - if token.typ != yaml_DOCUMENT_START_TOKEN { - yaml_parser_set_parser_error(parser, - "did not find expected ", token.start_mark) - return false - } - parser.states = append(parser.states, yaml_PARSE_DOCUMENT_END_STATE) - parser.state = yaml_PARSE_DOCUMENT_CONTENT_STATE - end_mark := token.end_mark - - *event = yaml_event_t{ - typ: yaml_DOCUMENT_START_EVENT, - start_mark: start_mark, - end_mark: end_mark, - version_directive: version_directive, - tag_directives: tag_directives, - implicit: false, - } - skip_token(parser) - - } else { - // Parse the stream end. - parser.state = yaml_PARSE_END_STATE - *event = yaml_event_t{ - typ: yaml_STREAM_END_EVENT, - start_mark: token.start_mark, - end_mark: token.end_mark, - } - skip_token(parser) - } - - return true -} - -// Parse the productions: -// explicit_document ::= DIRECTIVE* DOCUMENT-START block_node? DOCUMENT-END* -// *********** -// -func yaml_parser_parse_document_content(parser *yaml_parser_t, event *yaml_event_t) bool { - token := peek_token(parser) - if token == nil { - return false - } - if token.typ == yaml_VERSION_DIRECTIVE_TOKEN || - token.typ == yaml_TAG_DIRECTIVE_TOKEN || - token.typ == yaml_DOCUMENT_START_TOKEN || - token.typ == yaml_DOCUMENT_END_TOKEN || - token.typ == yaml_STREAM_END_TOKEN { - parser.state = parser.states[len(parser.states)-1] - parser.states = parser.states[:len(parser.states)-1] - return yaml_parser_process_empty_scalar(parser, event, - token.start_mark) - } - return yaml_parser_parse_node(parser, event, true, false) -} - -// Parse the productions: -// implicit_document ::= block_node DOCUMENT-END* -// ************* -// explicit_document ::= DIRECTIVE* DOCUMENT-START block_node? DOCUMENT-END* -// -func yaml_parser_parse_document_end(parser *yaml_parser_t, event *yaml_event_t) bool { - token := peek_token(parser) - if token == nil { - return false - } - - start_mark := token.start_mark - end_mark := token.start_mark - - implicit := true - if token.typ == yaml_DOCUMENT_END_TOKEN { - end_mark = token.end_mark - skip_token(parser) - implicit = false - } - - parser.tag_directives = parser.tag_directives[:0] - - parser.state = yaml_PARSE_DOCUMENT_START_STATE - *event = yaml_event_t{ - typ: yaml_DOCUMENT_END_EVENT, - start_mark: start_mark, - end_mark: end_mark, - implicit: implicit, - } - return true -} - -// Parse the productions: -// block_node_or_indentless_sequence ::= -// ALIAS -// ***** -// | properties (block_content | indentless_block_sequence)? -// ********** * -// | block_content | indentless_block_sequence -// * -// block_node ::= ALIAS -// ***** -// | properties block_content? -// ********** * -// | block_content -// * -// flow_node ::= ALIAS -// ***** -// | properties flow_content? -// ********** * -// | flow_content -// * -// properties ::= TAG ANCHOR? | ANCHOR TAG? -// ************************* -// block_content ::= block_collection | flow_collection | SCALAR -// ****** -// flow_content ::= flow_collection | SCALAR -// ****** -func yaml_parser_parse_node(parser *yaml_parser_t, event *yaml_event_t, block, indentless_sequence bool) bool { - //defer trace("yaml_parser_parse_node", "block:", block, "indentless_sequence:", indentless_sequence)() - - token := peek_token(parser) - if token == nil { - return false - } - - if token.typ == yaml_ALIAS_TOKEN { - parser.state = parser.states[len(parser.states)-1] - parser.states = parser.states[:len(parser.states)-1] - *event = yaml_event_t{ - typ: yaml_ALIAS_EVENT, - start_mark: token.start_mark, - end_mark: token.end_mark, - anchor: token.value, - } - skip_token(parser) - return true - } - - start_mark := token.start_mark - end_mark := token.start_mark - - var tag_token bool - var tag_handle, tag_suffix, anchor []byte - var tag_mark yaml_mark_t - if token.typ == yaml_ANCHOR_TOKEN { - anchor = token.value - start_mark = token.start_mark - end_mark = token.end_mark - skip_token(parser) - token = peek_token(parser) - if token == nil { - return false - } - if token.typ == yaml_TAG_TOKEN { - tag_token = true - tag_handle = token.value - tag_suffix = token.suffix - tag_mark = token.start_mark - end_mark = token.end_mark - skip_token(parser) - token = peek_token(parser) - if token == nil { - return false - } - } - } else if token.typ == yaml_TAG_TOKEN { - tag_token = true - tag_handle = token.value - tag_suffix = token.suffix - start_mark = token.start_mark - tag_mark = token.start_mark - end_mark = token.end_mark - skip_token(parser) - token = peek_token(parser) - if token == nil { - return false - } - if token.typ == yaml_ANCHOR_TOKEN { - anchor = token.value - end_mark = token.end_mark - skip_token(parser) - token = peek_token(parser) - if token == nil { - return false - } - } - } - - var tag []byte - if tag_token { - if len(tag_handle) == 0 { - tag = tag_suffix - tag_suffix = nil - } else { - for i := range parser.tag_directives { - if bytes.Equal(parser.tag_directives[i].handle, tag_handle) { - tag = append([]byte(nil), parser.tag_directives[i].prefix...) - tag = append(tag, tag_suffix...) - break - } - } - if len(tag) == 0 { - yaml_parser_set_parser_error_context(parser, - "while parsing a node", start_mark, - "found undefined tag handle", tag_mark) - return false - } - } - } - - implicit := len(tag) == 0 - if indentless_sequence && token.typ == yaml_BLOCK_ENTRY_TOKEN { - end_mark = token.end_mark - parser.state = yaml_PARSE_INDENTLESS_SEQUENCE_ENTRY_STATE - *event = yaml_event_t{ - typ: yaml_SEQUENCE_START_EVENT, - start_mark: start_mark, - end_mark: end_mark, - anchor: anchor, - tag: tag, - implicit: implicit, - style: yaml_style_t(yaml_BLOCK_SEQUENCE_STYLE), - } - return true - } - if token.typ == yaml_SCALAR_TOKEN { - var plain_implicit, quoted_implicit bool - end_mark = token.end_mark - if (len(tag) == 0 && token.style == yaml_PLAIN_SCALAR_STYLE) || (len(tag) == 1 && tag[0] == '!') { - plain_implicit = true - } else if len(tag) == 0 { - quoted_implicit = true - } - parser.state = parser.states[len(parser.states)-1] - parser.states = parser.states[:len(parser.states)-1] - - *event = yaml_event_t{ - typ: yaml_SCALAR_EVENT, - start_mark: start_mark, - end_mark: end_mark, - anchor: anchor, - tag: tag, - value: token.value, - implicit: plain_implicit, - quoted_implicit: quoted_implicit, - style: yaml_style_t(token.style), - } - skip_token(parser) - return true - } - if token.typ == yaml_FLOW_SEQUENCE_START_TOKEN { - // [Go] Some of the events below can be merged as they differ only on style. - end_mark = token.end_mark - parser.state = yaml_PARSE_FLOW_SEQUENCE_FIRST_ENTRY_STATE - *event = yaml_event_t{ - typ: yaml_SEQUENCE_START_EVENT, - start_mark: start_mark, - end_mark: end_mark, - anchor: anchor, - tag: tag, - implicit: implicit, - style: yaml_style_t(yaml_FLOW_SEQUENCE_STYLE), - } - return true - } - if token.typ == yaml_FLOW_MAPPING_START_TOKEN { - end_mark = token.end_mark - parser.state = yaml_PARSE_FLOW_MAPPING_FIRST_KEY_STATE - *event = yaml_event_t{ - typ: yaml_MAPPING_START_EVENT, - start_mark: start_mark, - end_mark: end_mark, - anchor: anchor, - tag: tag, - implicit: implicit, - style: yaml_style_t(yaml_FLOW_MAPPING_STYLE), - } - return true - } - if block && token.typ == yaml_BLOCK_SEQUENCE_START_TOKEN { - end_mark = token.end_mark - parser.state = yaml_PARSE_BLOCK_SEQUENCE_FIRST_ENTRY_STATE - *event = yaml_event_t{ - typ: yaml_SEQUENCE_START_EVENT, - start_mark: start_mark, - end_mark: end_mark, - anchor: anchor, - tag: tag, - implicit: implicit, - style: yaml_style_t(yaml_BLOCK_SEQUENCE_STYLE), - } - return true - } - if block && token.typ == yaml_BLOCK_MAPPING_START_TOKEN { - end_mark = token.end_mark - parser.state = yaml_PARSE_BLOCK_MAPPING_FIRST_KEY_STATE - *event = yaml_event_t{ - typ: yaml_MAPPING_START_EVENT, - start_mark: start_mark, - end_mark: end_mark, - anchor: anchor, - tag: tag, - implicit: implicit, - style: yaml_style_t(yaml_BLOCK_MAPPING_STYLE), - } - return true - } - if len(anchor) > 0 || len(tag) > 0 { - parser.state = parser.states[len(parser.states)-1] - parser.states = parser.states[:len(parser.states)-1] - - *event = yaml_event_t{ - typ: yaml_SCALAR_EVENT, - start_mark: start_mark, - end_mark: end_mark, - anchor: anchor, - tag: tag, - implicit: implicit, - quoted_implicit: false, - style: yaml_style_t(yaml_PLAIN_SCALAR_STYLE), - } - return true - } - - context := "while parsing a flow node" - if block { - context = "while parsing a block node" - } - yaml_parser_set_parser_error_context(parser, context, start_mark, - "did not find expected node content", token.start_mark) - return false -} - -// Parse the productions: -// block_sequence ::= BLOCK-SEQUENCE-START (BLOCK-ENTRY block_node?)* BLOCK-END -// ******************** *********** * ********* -// -func yaml_parser_parse_block_sequence_entry(parser *yaml_parser_t, event *yaml_event_t, first bool) bool { - if first { - token := peek_token(parser) - parser.marks = append(parser.marks, token.start_mark) - skip_token(parser) - } - - token := peek_token(parser) - if token == nil { - return false - } - - if token.typ == yaml_BLOCK_ENTRY_TOKEN { - mark := token.end_mark - skip_token(parser) - token = peek_token(parser) - if token == nil { - return false - } - if token.typ != yaml_BLOCK_ENTRY_TOKEN && token.typ != yaml_BLOCK_END_TOKEN { - parser.states = append(parser.states, yaml_PARSE_BLOCK_SEQUENCE_ENTRY_STATE) - return yaml_parser_parse_node(parser, event, true, false) - } else { - parser.state = yaml_PARSE_BLOCK_SEQUENCE_ENTRY_STATE - return yaml_parser_process_empty_scalar(parser, event, mark) - } - } - if token.typ == yaml_BLOCK_END_TOKEN { - parser.state = parser.states[len(parser.states)-1] - parser.states = parser.states[:len(parser.states)-1] - parser.marks = parser.marks[:len(parser.marks)-1] - - *event = yaml_event_t{ - typ: yaml_SEQUENCE_END_EVENT, - start_mark: token.start_mark, - end_mark: token.end_mark, - } - - skip_token(parser) - return true - } - - context_mark := parser.marks[len(parser.marks)-1] - parser.marks = parser.marks[:len(parser.marks)-1] - return yaml_parser_set_parser_error_context(parser, - "while parsing a block collection", context_mark, - "did not find expected '-' indicator", token.start_mark) -} - -// Parse the productions: -// indentless_sequence ::= (BLOCK-ENTRY block_node?)+ -// *********** * -func yaml_parser_parse_indentless_sequence_entry(parser *yaml_parser_t, event *yaml_event_t) bool { - token := peek_token(parser) - if token == nil { - return false - } - - if token.typ == yaml_BLOCK_ENTRY_TOKEN { - mark := token.end_mark - skip_token(parser) - token = peek_token(parser) - if token == nil { - return false - } - if token.typ != yaml_BLOCK_ENTRY_TOKEN && - token.typ != yaml_KEY_TOKEN && - token.typ != yaml_VALUE_TOKEN && - token.typ != yaml_BLOCK_END_TOKEN { - parser.states = append(parser.states, yaml_PARSE_INDENTLESS_SEQUENCE_ENTRY_STATE) - return yaml_parser_parse_node(parser, event, true, false) - } - parser.state = yaml_PARSE_INDENTLESS_SEQUENCE_ENTRY_STATE - return yaml_parser_process_empty_scalar(parser, event, mark) - } - parser.state = parser.states[len(parser.states)-1] - parser.states = parser.states[:len(parser.states)-1] - - *event = yaml_event_t{ - typ: yaml_SEQUENCE_END_EVENT, - start_mark: token.start_mark, - end_mark: token.start_mark, // [Go] Shouldn't this be token.end_mark? - } - return true -} - -// Parse the productions: -// block_mapping ::= BLOCK-MAPPING_START -// ******************* -// ((KEY block_node_or_indentless_sequence?)? -// *** * -// (VALUE block_node_or_indentless_sequence?)?)* -// -// BLOCK-END -// ********* -// -func yaml_parser_parse_block_mapping_key(parser *yaml_parser_t, event *yaml_event_t, first bool) bool { - if first { - token := peek_token(parser) - parser.marks = append(parser.marks, token.start_mark) - skip_token(parser) - } - - token := peek_token(parser) - if token == nil { - return false - } - - if token.typ == yaml_KEY_TOKEN { - mark := token.end_mark - skip_token(parser) - token = peek_token(parser) - if token == nil { - return false - } - if token.typ != yaml_KEY_TOKEN && - token.typ != yaml_VALUE_TOKEN && - token.typ != yaml_BLOCK_END_TOKEN { - parser.states = append(parser.states, yaml_PARSE_BLOCK_MAPPING_VALUE_STATE) - return yaml_parser_parse_node(parser, event, true, true) - } else { - parser.state = yaml_PARSE_BLOCK_MAPPING_VALUE_STATE - return yaml_parser_process_empty_scalar(parser, event, mark) - } - } else if token.typ == yaml_BLOCK_END_TOKEN { - parser.state = parser.states[len(parser.states)-1] - parser.states = parser.states[:len(parser.states)-1] - parser.marks = parser.marks[:len(parser.marks)-1] - *event = yaml_event_t{ - typ: yaml_MAPPING_END_EVENT, - start_mark: token.start_mark, - end_mark: token.end_mark, - } - skip_token(parser) - return true - } - - context_mark := parser.marks[len(parser.marks)-1] - parser.marks = parser.marks[:len(parser.marks)-1] - return yaml_parser_set_parser_error_context(parser, - "while parsing a block mapping", context_mark, - "did not find expected key", token.start_mark) -} - -// Parse the productions: -// block_mapping ::= BLOCK-MAPPING_START -// -// ((KEY block_node_or_indentless_sequence?)? -// -// (VALUE block_node_or_indentless_sequence?)?)* -// ***** * -// BLOCK-END -// -// -func yaml_parser_parse_block_mapping_value(parser *yaml_parser_t, event *yaml_event_t) bool { - token := peek_token(parser) - if token == nil { - return false - } - if token.typ == yaml_VALUE_TOKEN { - mark := token.end_mark - skip_token(parser) - token = peek_token(parser) - if token == nil { - return false - } - if token.typ != yaml_KEY_TOKEN && - token.typ != yaml_VALUE_TOKEN && - token.typ != yaml_BLOCK_END_TOKEN { - parser.states = append(parser.states, yaml_PARSE_BLOCK_MAPPING_KEY_STATE) - return yaml_parser_parse_node(parser, event, true, true) - } - parser.state = yaml_PARSE_BLOCK_MAPPING_KEY_STATE - return yaml_parser_process_empty_scalar(parser, event, mark) - } - parser.state = yaml_PARSE_BLOCK_MAPPING_KEY_STATE - return yaml_parser_process_empty_scalar(parser, event, token.start_mark) -} - -// Parse the productions: -// flow_sequence ::= FLOW-SEQUENCE-START -// ******************* -// (flow_sequence_entry FLOW-ENTRY)* -// * ********** -// flow_sequence_entry? -// * -// FLOW-SEQUENCE-END -// ***************** -// flow_sequence_entry ::= flow_node | KEY flow_node? (VALUE flow_node?)? -// * -// -func yaml_parser_parse_flow_sequence_entry(parser *yaml_parser_t, event *yaml_event_t, first bool) bool { - if first { - token := peek_token(parser) - parser.marks = append(parser.marks, token.start_mark) - skip_token(parser) - } - token := peek_token(parser) - if token == nil { - return false - } - if token.typ != yaml_FLOW_SEQUENCE_END_TOKEN { - if !first { - if token.typ == yaml_FLOW_ENTRY_TOKEN { - skip_token(parser) - token = peek_token(parser) - if token == nil { - return false - } - } else { - context_mark := parser.marks[len(parser.marks)-1] - parser.marks = parser.marks[:len(parser.marks)-1] - return yaml_parser_set_parser_error_context(parser, - "while parsing a flow sequence", context_mark, - "did not find expected ',' or ']'", token.start_mark) - } - } - - if token.typ == yaml_KEY_TOKEN { - parser.state = yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_KEY_STATE - *event = yaml_event_t{ - typ: yaml_MAPPING_START_EVENT, - start_mark: token.start_mark, - end_mark: token.end_mark, - implicit: true, - style: yaml_style_t(yaml_FLOW_MAPPING_STYLE), - } - skip_token(parser) - return true - } else if token.typ != yaml_FLOW_SEQUENCE_END_TOKEN { - parser.states = append(parser.states, yaml_PARSE_FLOW_SEQUENCE_ENTRY_STATE) - return yaml_parser_parse_node(parser, event, false, false) - } - } - - parser.state = parser.states[len(parser.states)-1] - parser.states = parser.states[:len(parser.states)-1] - parser.marks = parser.marks[:len(parser.marks)-1] - - *event = yaml_event_t{ - typ: yaml_SEQUENCE_END_EVENT, - start_mark: token.start_mark, - end_mark: token.end_mark, - } - - skip_token(parser) - return true -} - -// -// Parse the productions: -// flow_sequence_entry ::= flow_node | KEY flow_node? (VALUE flow_node?)? -// *** * -// -func yaml_parser_parse_flow_sequence_entry_mapping_key(parser *yaml_parser_t, event *yaml_event_t) bool { - token := peek_token(parser) - if token == nil { - return false - } - if token.typ != yaml_VALUE_TOKEN && - token.typ != yaml_FLOW_ENTRY_TOKEN && - token.typ != yaml_FLOW_SEQUENCE_END_TOKEN { - parser.states = append(parser.states, yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_VALUE_STATE) - return yaml_parser_parse_node(parser, event, false, false) - } - mark := token.end_mark - skip_token(parser) - parser.state = yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_VALUE_STATE - return yaml_parser_process_empty_scalar(parser, event, mark) -} - -// Parse the productions: -// flow_sequence_entry ::= flow_node | KEY flow_node? (VALUE flow_node?)? -// ***** * -// -func yaml_parser_parse_flow_sequence_entry_mapping_value(parser *yaml_parser_t, event *yaml_event_t) bool { - token := peek_token(parser) - if token == nil { - return false - } - if token.typ == yaml_VALUE_TOKEN { - skip_token(parser) - token := peek_token(parser) - if token == nil { - return false - } - if token.typ != yaml_FLOW_ENTRY_TOKEN && token.typ != yaml_FLOW_SEQUENCE_END_TOKEN { - parser.states = append(parser.states, yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_END_STATE) - return yaml_parser_parse_node(parser, event, false, false) - } - } - parser.state = yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_END_STATE - return yaml_parser_process_empty_scalar(parser, event, token.start_mark) -} - -// Parse the productions: -// flow_sequence_entry ::= flow_node | KEY flow_node? (VALUE flow_node?)? -// * -// -func yaml_parser_parse_flow_sequence_entry_mapping_end(parser *yaml_parser_t, event *yaml_event_t) bool { - token := peek_token(parser) - if token == nil { - return false - } - parser.state = yaml_PARSE_FLOW_SEQUENCE_ENTRY_STATE - *event = yaml_event_t{ - typ: yaml_MAPPING_END_EVENT, - start_mark: token.start_mark, - end_mark: token.start_mark, // [Go] Shouldn't this be end_mark? - } - return true -} - -// Parse the productions: -// flow_mapping ::= FLOW-MAPPING-START -// ****************** -// (flow_mapping_entry FLOW-ENTRY)* -// * ********** -// flow_mapping_entry? -// ****************** -// FLOW-MAPPING-END -// **************** -// flow_mapping_entry ::= flow_node | KEY flow_node? (VALUE flow_node?)? -// * *** * -// -func yaml_parser_parse_flow_mapping_key(parser *yaml_parser_t, event *yaml_event_t, first bool) bool { - if first { - token := peek_token(parser) - parser.marks = append(parser.marks, token.start_mark) - skip_token(parser) - } - - token := peek_token(parser) - if token == nil { - return false - } - - if token.typ != yaml_FLOW_MAPPING_END_TOKEN { - if !first { - if token.typ == yaml_FLOW_ENTRY_TOKEN { - skip_token(parser) - token = peek_token(parser) - if token == nil { - return false - } - } else { - context_mark := parser.marks[len(parser.marks)-1] - parser.marks = parser.marks[:len(parser.marks)-1] - return yaml_parser_set_parser_error_context(parser, - "while parsing a flow mapping", context_mark, - "did not find expected ',' or '}'", token.start_mark) - } - } - - if token.typ == yaml_KEY_TOKEN { - skip_token(parser) - token = peek_token(parser) - if token == nil { - return false - } - if token.typ != yaml_VALUE_TOKEN && - token.typ != yaml_FLOW_ENTRY_TOKEN && - token.typ != yaml_FLOW_MAPPING_END_TOKEN { - parser.states = append(parser.states, yaml_PARSE_FLOW_MAPPING_VALUE_STATE) - return yaml_parser_parse_node(parser, event, false, false) - } else { - parser.state = yaml_PARSE_FLOW_MAPPING_VALUE_STATE - return yaml_parser_process_empty_scalar(parser, event, token.start_mark) - } - } else if token.typ != yaml_FLOW_MAPPING_END_TOKEN { - parser.states = append(parser.states, yaml_PARSE_FLOW_MAPPING_EMPTY_VALUE_STATE) - return yaml_parser_parse_node(parser, event, false, false) - } - } - - parser.state = parser.states[len(parser.states)-1] - parser.states = parser.states[:len(parser.states)-1] - parser.marks = parser.marks[:len(parser.marks)-1] - *event = yaml_event_t{ - typ: yaml_MAPPING_END_EVENT, - start_mark: token.start_mark, - end_mark: token.end_mark, - } - skip_token(parser) - return true -} - -// Parse the productions: -// flow_mapping_entry ::= flow_node | KEY flow_node? (VALUE flow_node?)? -// * ***** * -// -func yaml_parser_parse_flow_mapping_value(parser *yaml_parser_t, event *yaml_event_t, empty bool) bool { - token := peek_token(parser) - if token == nil { - return false - } - if empty { - parser.state = yaml_PARSE_FLOW_MAPPING_KEY_STATE - return yaml_parser_process_empty_scalar(parser, event, token.start_mark) - } - if token.typ == yaml_VALUE_TOKEN { - skip_token(parser) - token = peek_token(parser) - if token == nil { - return false - } - if token.typ != yaml_FLOW_ENTRY_TOKEN && token.typ != yaml_FLOW_MAPPING_END_TOKEN { - parser.states = append(parser.states, yaml_PARSE_FLOW_MAPPING_KEY_STATE) - return yaml_parser_parse_node(parser, event, false, false) - } - } - parser.state = yaml_PARSE_FLOW_MAPPING_KEY_STATE - return yaml_parser_process_empty_scalar(parser, event, token.start_mark) -} - -// Generate an empty scalar event. -func yaml_parser_process_empty_scalar(parser *yaml_parser_t, event *yaml_event_t, mark yaml_mark_t) bool { - *event = yaml_event_t{ - typ: yaml_SCALAR_EVENT, - start_mark: mark, - end_mark: mark, - value: nil, // Empty - implicit: true, - style: yaml_style_t(yaml_PLAIN_SCALAR_STYLE), - } - return true -} - -var default_tag_directives = []yaml_tag_directive_t{ - {[]byte("!"), []byte("!")}, - {[]byte("!!"), []byte("tag:yaml.org,2002:")}, -} - -// Parse directives. -func yaml_parser_process_directives(parser *yaml_parser_t, - version_directive_ref **yaml_version_directive_t, - tag_directives_ref *[]yaml_tag_directive_t) bool { - - var version_directive *yaml_version_directive_t - var tag_directives []yaml_tag_directive_t - - token := peek_token(parser) - if token == nil { - return false - } - - for token.typ == yaml_VERSION_DIRECTIVE_TOKEN || token.typ == yaml_TAG_DIRECTIVE_TOKEN { - if token.typ == yaml_VERSION_DIRECTIVE_TOKEN { - if version_directive != nil { - yaml_parser_set_parser_error(parser, - "found duplicate %YAML directive", token.start_mark) - return false - } - if token.major != 1 || token.minor != 1 { - yaml_parser_set_parser_error(parser, - "found incompatible YAML document", token.start_mark) - return false - } - version_directive = &yaml_version_directive_t{ - major: token.major, - minor: token.minor, - } - } else if token.typ == yaml_TAG_DIRECTIVE_TOKEN { - value := yaml_tag_directive_t{ - handle: token.value, - prefix: token.prefix, - } - if !yaml_parser_append_tag_directive(parser, value, false, token.start_mark) { - return false - } - tag_directives = append(tag_directives, value) - } - - skip_token(parser) - token = peek_token(parser) - if token == nil { - return false - } - } - - for i := range default_tag_directives { - if !yaml_parser_append_tag_directive(parser, default_tag_directives[i], true, token.start_mark) { - return false - } - } - - if version_directive_ref != nil { - *version_directive_ref = version_directive - } - if tag_directives_ref != nil { - *tag_directives_ref = tag_directives - } - return true -} - -// Append a tag directive to the directives stack. -func yaml_parser_append_tag_directive(parser *yaml_parser_t, value yaml_tag_directive_t, allow_duplicates bool, mark yaml_mark_t) bool { - for i := range parser.tag_directives { - if bytes.Equal(value.handle, parser.tag_directives[i].handle) { - if allow_duplicates { - return true - } - return yaml_parser_set_parser_error(parser, "found duplicate %TAG directive", mark) - } - } - - // [Go] I suspect the copy is unnecessary. This was likely done - // because there was no way to track ownership of the data. - value_copy := yaml_tag_directive_t{ - handle: make([]byte, len(value.handle)), - prefix: make([]byte, len(value.prefix)), - } - copy(value_copy.handle, value.handle) - copy(value_copy.prefix, value.prefix) - parser.tag_directives = append(parser.tag_directives, value_copy) - return true -} diff --git a/vendor/gopkg.in/yaml.v2/readerc.go b/vendor/gopkg.in/yaml.v2/readerc.go deleted file mode 100644 index 7c1f5fa..0000000 --- a/vendor/gopkg.in/yaml.v2/readerc.go +++ /dev/null @@ -1,412 +0,0 @@ -package yaml - -import ( - "io" -) - -// Set the reader error and return 0. -func yaml_parser_set_reader_error(parser *yaml_parser_t, problem string, offset int, value int) bool { - parser.error = yaml_READER_ERROR - parser.problem = problem - parser.problem_offset = offset - parser.problem_value = value - return false -} - -// Byte order marks. -const ( - bom_UTF8 = "\xef\xbb\xbf" - bom_UTF16LE = "\xff\xfe" - bom_UTF16BE = "\xfe\xff" -) - -// Determine the input stream encoding by checking the BOM symbol. If no BOM is -// found, the UTF-8 encoding is assumed. Return 1 on success, 0 on failure. -func yaml_parser_determine_encoding(parser *yaml_parser_t) bool { - // Ensure that we had enough bytes in the raw buffer. - for !parser.eof && len(parser.raw_buffer)-parser.raw_buffer_pos < 3 { - if !yaml_parser_update_raw_buffer(parser) { - return false - } - } - - // Determine the encoding. - buf := parser.raw_buffer - pos := parser.raw_buffer_pos - avail := len(buf) - pos - if avail >= 2 && buf[pos] == bom_UTF16LE[0] && buf[pos+1] == bom_UTF16LE[1] { - parser.encoding = yaml_UTF16LE_ENCODING - parser.raw_buffer_pos += 2 - parser.offset += 2 - } else if avail >= 2 && buf[pos] == bom_UTF16BE[0] && buf[pos+1] == bom_UTF16BE[1] { - parser.encoding = yaml_UTF16BE_ENCODING - parser.raw_buffer_pos += 2 - parser.offset += 2 - } else if avail >= 3 && buf[pos] == bom_UTF8[0] && buf[pos+1] == bom_UTF8[1] && buf[pos+2] == bom_UTF8[2] { - parser.encoding = yaml_UTF8_ENCODING - parser.raw_buffer_pos += 3 - parser.offset += 3 - } else { - parser.encoding = yaml_UTF8_ENCODING - } - return true -} - -// Update the raw buffer. -func yaml_parser_update_raw_buffer(parser *yaml_parser_t) bool { - size_read := 0 - - // Return if the raw buffer is full. - if parser.raw_buffer_pos == 0 && len(parser.raw_buffer) == cap(parser.raw_buffer) { - return true - } - - // Return on EOF. - if parser.eof { - return true - } - - // Move the remaining bytes in the raw buffer to the beginning. - if parser.raw_buffer_pos > 0 && parser.raw_buffer_pos < len(parser.raw_buffer) { - copy(parser.raw_buffer, parser.raw_buffer[parser.raw_buffer_pos:]) - } - parser.raw_buffer = parser.raw_buffer[:len(parser.raw_buffer)-parser.raw_buffer_pos] - parser.raw_buffer_pos = 0 - - // Call the read handler to fill the buffer. - size_read, err := parser.read_handler(parser, parser.raw_buffer[len(parser.raw_buffer):cap(parser.raw_buffer)]) - parser.raw_buffer = parser.raw_buffer[:len(parser.raw_buffer)+size_read] - if err == io.EOF { - parser.eof = true - } else if err != nil { - return yaml_parser_set_reader_error(parser, "input error: "+err.Error(), parser.offset, -1) - } - return true -} - -// Ensure that the buffer contains at least `length` characters. -// Return true on success, false on failure. -// -// The length is supposed to be significantly less that the buffer size. -func yaml_parser_update_buffer(parser *yaml_parser_t, length int) bool { - if parser.read_handler == nil { - panic("read handler must be set") - } - - // [Go] This function was changed to guarantee the requested length size at EOF. - // The fact we need to do this is pretty awful, but the description above implies - // for that to be the case, and there are tests - - // If the EOF flag is set and the raw buffer is empty, do nothing. - if parser.eof && parser.raw_buffer_pos == len(parser.raw_buffer) { - // [Go] ACTUALLY! Read the documentation of this function above. - // This is just broken. To return true, we need to have the - // given length in the buffer. Not doing that means every single - // check that calls this function to make sure the buffer has a - // given length is Go) panicking; or C) accessing invalid memory. - //return true - } - - // Return if the buffer contains enough characters. - if parser.unread >= length { - return true - } - - // Determine the input encoding if it is not known yet. - if parser.encoding == yaml_ANY_ENCODING { - if !yaml_parser_determine_encoding(parser) { - return false - } - } - - // Move the unread characters to the beginning of the buffer. - buffer_len := len(parser.buffer) - if parser.buffer_pos > 0 && parser.buffer_pos < buffer_len { - copy(parser.buffer, parser.buffer[parser.buffer_pos:]) - buffer_len -= parser.buffer_pos - parser.buffer_pos = 0 - } else if parser.buffer_pos == buffer_len { - buffer_len = 0 - parser.buffer_pos = 0 - } - - // Open the whole buffer for writing, and cut it before returning. - parser.buffer = parser.buffer[:cap(parser.buffer)] - - // Fill the buffer until it has enough characters. - first := true - for parser.unread < length { - - // Fill the raw buffer if necessary. - if !first || parser.raw_buffer_pos == len(parser.raw_buffer) { - if !yaml_parser_update_raw_buffer(parser) { - parser.buffer = parser.buffer[:buffer_len] - return false - } - } - first = false - - // Decode the raw buffer. - inner: - for parser.raw_buffer_pos != len(parser.raw_buffer) { - var value rune - var width int - - raw_unread := len(parser.raw_buffer) - parser.raw_buffer_pos - - // Decode the next character. - switch parser.encoding { - case yaml_UTF8_ENCODING: - // Decode a UTF-8 character. Check RFC 3629 - // (http://www.ietf.org/rfc/rfc3629.txt) for more details. - // - // The following table (taken from the RFC) is used for - // decoding. - // - // Char. number range | UTF-8 octet sequence - // (hexadecimal) | (binary) - // --------------------+------------------------------------ - // 0000 0000-0000 007F | 0xxxxxxx - // 0000 0080-0000 07FF | 110xxxxx 10xxxxxx - // 0000 0800-0000 FFFF | 1110xxxx 10xxxxxx 10xxxxxx - // 0001 0000-0010 FFFF | 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx - // - // Additionally, the characters in the range 0xD800-0xDFFF - // are prohibited as they are reserved for use with UTF-16 - // surrogate pairs. - - // Determine the length of the UTF-8 sequence. - octet := parser.raw_buffer[parser.raw_buffer_pos] - switch { - case octet&0x80 == 0x00: - width = 1 - case octet&0xE0 == 0xC0: - width = 2 - case octet&0xF0 == 0xE0: - width = 3 - case octet&0xF8 == 0xF0: - width = 4 - default: - // The leading octet is invalid. - return yaml_parser_set_reader_error(parser, - "invalid leading UTF-8 octet", - parser.offset, int(octet)) - } - - // Check if the raw buffer contains an incomplete character. - if width > raw_unread { - if parser.eof { - return yaml_parser_set_reader_error(parser, - "incomplete UTF-8 octet sequence", - parser.offset, -1) - } - break inner - } - - // Decode the leading octet. - switch { - case octet&0x80 == 0x00: - value = rune(octet & 0x7F) - case octet&0xE0 == 0xC0: - value = rune(octet & 0x1F) - case octet&0xF0 == 0xE0: - value = rune(octet & 0x0F) - case octet&0xF8 == 0xF0: - value = rune(octet & 0x07) - default: - value = 0 - } - - // Check and decode the trailing octets. - for k := 1; k < width; k++ { - octet = parser.raw_buffer[parser.raw_buffer_pos+k] - - // Check if the octet is valid. - if (octet & 0xC0) != 0x80 { - return yaml_parser_set_reader_error(parser, - "invalid trailing UTF-8 octet", - parser.offset+k, int(octet)) - } - - // Decode the octet. - value = (value << 6) + rune(octet&0x3F) - } - - // Check the length of the sequence against the value. - switch { - case width == 1: - case width == 2 && value >= 0x80: - case width == 3 && value >= 0x800: - case width == 4 && value >= 0x10000: - default: - return yaml_parser_set_reader_error(parser, - "invalid length of a UTF-8 sequence", - parser.offset, -1) - } - - // Check the range of the value. - if value >= 0xD800 && value <= 0xDFFF || value > 0x10FFFF { - return yaml_parser_set_reader_error(parser, - "invalid Unicode character", - parser.offset, int(value)) - } - - case yaml_UTF16LE_ENCODING, yaml_UTF16BE_ENCODING: - var low, high int - if parser.encoding == yaml_UTF16LE_ENCODING { - low, high = 0, 1 - } else { - low, high = 1, 0 - } - - // The UTF-16 encoding is not as simple as one might - // naively think. Check RFC 2781 - // (http://www.ietf.org/rfc/rfc2781.txt). - // - // Normally, two subsequent bytes describe a Unicode - // character. However a special technique (called a - // surrogate pair) is used for specifying character - // values larger than 0xFFFF. - // - // A surrogate pair consists of two pseudo-characters: - // high surrogate area (0xD800-0xDBFF) - // low surrogate area (0xDC00-0xDFFF) - // - // The following formulas are used for decoding - // and encoding characters using surrogate pairs: - // - // U = U' + 0x10000 (0x01 00 00 <= U <= 0x10 FF FF) - // U' = yyyyyyyyyyxxxxxxxxxx (0 <= U' <= 0x0F FF FF) - // W1 = 110110yyyyyyyyyy - // W2 = 110111xxxxxxxxxx - // - // where U is the character value, W1 is the high surrogate - // area, W2 is the low surrogate area. - - // Check for incomplete UTF-16 character. - if raw_unread < 2 { - if parser.eof { - return yaml_parser_set_reader_error(parser, - "incomplete UTF-16 character", - parser.offset, -1) - } - break inner - } - - // Get the character. - value = rune(parser.raw_buffer[parser.raw_buffer_pos+low]) + - (rune(parser.raw_buffer[parser.raw_buffer_pos+high]) << 8) - - // Check for unexpected low surrogate area. - if value&0xFC00 == 0xDC00 { - return yaml_parser_set_reader_error(parser, - "unexpected low surrogate area", - parser.offset, int(value)) - } - - // Check for a high surrogate area. - if value&0xFC00 == 0xD800 { - width = 4 - - // Check for incomplete surrogate pair. - if raw_unread < 4 { - if parser.eof { - return yaml_parser_set_reader_error(parser, - "incomplete UTF-16 surrogate pair", - parser.offset, -1) - } - break inner - } - - // Get the next character. - value2 := rune(parser.raw_buffer[parser.raw_buffer_pos+low+2]) + - (rune(parser.raw_buffer[parser.raw_buffer_pos+high+2]) << 8) - - // Check for a low surrogate area. - if value2&0xFC00 != 0xDC00 { - return yaml_parser_set_reader_error(parser, - "expected low surrogate area", - parser.offset+2, int(value2)) - } - - // Generate the value of the surrogate pair. - value = 0x10000 + ((value & 0x3FF) << 10) + (value2 & 0x3FF) - } else { - width = 2 - } - - default: - panic("impossible") - } - - // Check if the character is in the allowed range: - // #x9 | #xA | #xD | [#x20-#x7E] (8 bit) - // | #x85 | [#xA0-#xD7FF] | [#xE000-#xFFFD] (16 bit) - // | [#x10000-#x10FFFF] (32 bit) - switch { - case value == 0x09: - case value == 0x0A: - case value == 0x0D: - case value >= 0x20 && value <= 0x7E: - case value == 0x85: - case value >= 0xA0 && value <= 0xD7FF: - case value >= 0xE000 && value <= 0xFFFD: - case value >= 0x10000 && value <= 0x10FFFF: - default: - return yaml_parser_set_reader_error(parser, - "control characters are not allowed", - parser.offset, int(value)) - } - - // Move the raw pointers. - parser.raw_buffer_pos += width - parser.offset += width - - // Finally put the character into the buffer. - if value <= 0x7F { - // 0000 0000-0000 007F . 0xxxxxxx - parser.buffer[buffer_len+0] = byte(value) - buffer_len += 1 - } else if value <= 0x7FF { - // 0000 0080-0000 07FF . 110xxxxx 10xxxxxx - parser.buffer[buffer_len+0] = byte(0xC0 + (value >> 6)) - parser.buffer[buffer_len+1] = byte(0x80 + (value & 0x3F)) - buffer_len += 2 - } else if value <= 0xFFFF { - // 0000 0800-0000 FFFF . 1110xxxx 10xxxxxx 10xxxxxx - parser.buffer[buffer_len+0] = byte(0xE0 + (value >> 12)) - parser.buffer[buffer_len+1] = byte(0x80 + ((value >> 6) & 0x3F)) - parser.buffer[buffer_len+2] = byte(0x80 + (value & 0x3F)) - buffer_len += 3 - } else { - // 0001 0000-0010 FFFF . 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx - parser.buffer[buffer_len+0] = byte(0xF0 + (value >> 18)) - parser.buffer[buffer_len+1] = byte(0x80 + ((value >> 12) & 0x3F)) - parser.buffer[buffer_len+2] = byte(0x80 + ((value >> 6) & 0x3F)) - parser.buffer[buffer_len+3] = byte(0x80 + (value & 0x3F)) - buffer_len += 4 - } - - parser.unread++ - } - - // On EOF, put NUL into the buffer and return. - if parser.eof { - parser.buffer[buffer_len] = 0 - buffer_len++ - parser.unread++ - break - } - } - // [Go] Read the documentation of this function above. To return true, - // we need to have the given length in the buffer. Not doing that means - // every single check that calls this function to make sure the buffer - // has a given length is Go) panicking; or C) accessing invalid memory. - // This happens here due to the EOF above breaking early. - for buffer_len < length { - parser.buffer[buffer_len] = 0 - buffer_len++ - } - parser.buffer = parser.buffer[:buffer_len] - return true -} diff --git a/vendor/gopkg.in/yaml.v2/resolve.go b/vendor/gopkg.in/yaml.v2/resolve.go deleted file mode 100644 index 4120e0c..0000000 --- a/vendor/gopkg.in/yaml.v2/resolve.go +++ /dev/null @@ -1,258 +0,0 @@ -package yaml - -import ( - "encoding/base64" - "math" - "regexp" - "strconv" - "strings" - "time" -) - -type resolveMapItem struct { - value interface{} - tag string -} - -var resolveTable = make([]byte, 256) -var resolveMap = make(map[string]resolveMapItem) - -func init() { - t := resolveTable - t[int('+')] = 'S' // Sign - t[int('-')] = 'S' - for _, c := range "0123456789" { - t[int(c)] = 'D' // Digit - } - for _, c := range "yYnNtTfFoO~" { - t[int(c)] = 'M' // In map - } - t[int('.')] = '.' // Float (potentially in map) - - var resolveMapList = []struct { - v interface{} - tag string - l []string - }{ - {true, yaml_BOOL_TAG, []string{"y", "Y", "yes", "Yes", "YES"}}, - {true, yaml_BOOL_TAG, []string{"true", "True", "TRUE"}}, - {true, yaml_BOOL_TAG, []string{"on", "On", "ON"}}, - {false, yaml_BOOL_TAG, []string{"n", "N", "no", "No", "NO"}}, - {false, yaml_BOOL_TAG, []string{"false", "False", "FALSE"}}, - {false, yaml_BOOL_TAG, []string{"off", "Off", "OFF"}}, - {nil, yaml_NULL_TAG, []string{"", "~", "null", "Null", "NULL"}}, - {math.NaN(), yaml_FLOAT_TAG, []string{".nan", ".NaN", ".NAN"}}, - {math.Inf(+1), yaml_FLOAT_TAG, []string{".inf", ".Inf", ".INF"}}, - {math.Inf(+1), yaml_FLOAT_TAG, []string{"+.inf", "+.Inf", "+.INF"}}, - {math.Inf(-1), yaml_FLOAT_TAG, []string{"-.inf", "-.Inf", "-.INF"}}, - {"<<", yaml_MERGE_TAG, []string{"<<"}}, - } - - m := resolveMap - for _, item := range resolveMapList { - for _, s := range item.l { - m[s] = resolveMapItem{item.v, item.tag} - } - } -} - -const longTagPrefix = "tag:yaml.org,2002:" - -func shortTag(tag string) string { - // TODO This can easily be made faster and produce less garbage. - if strings.HasPrefix(tag, longTagPrefix) { - return "!!" + tag[len(longTagPrefix):] - } - return tag -} - -func longTag(tag string) string { - if strings.HasPrefix(tag, "!!") { - return longTagPrefix + tag[2:] - } - return tag -} - -func resolvableTag(tag string) bool { - switch tag { - case "", yaml_STR_TAG, yaml_BOOL_TAG, yaml_INT_TAG, yaml_FLOAT_TAG, yaml_NULL_TAG, yaml_TIMESTAMP_TAG: - return true - } - return false -} - -var yamlStyleFloat = regexp.MustCompile(`^[-+]?(\.[0-9]+|[0-9]+(\.[0-9]*)?)([eE][-+]?[0-9]+)?$`) - -func resolve(tag string, in string) (rtag string, out interface{}) { - if !resolvableTag(tag) { - return tag, in - } - - defer func() { - switch tag { - case "", rtag, yaml_STR_TAG, yaml_BINARY_TAG: - return - case yaml_FLOAT_TAG: - if rtag == yaml_INT_TAG { - switch v := out.(type) { - case int64: - rtag = yaml_FLOAT_TAG - out = float64(v) - return - case int: - rtag = yaml_FLOAT_TAG - out = float64(v) - return - } - } - } - failf("cannot decode %s `%s` as a %s", shortTag(rtag), in, shortTag(tag)) - }() - - // Any data is accepted as a !!str or !!binary. - // Otherwise, the prefix is enough of a hint about what it might be. - hint := byte('N') - if in != "" { - hint = resolveTable[in[0]] - } - if hint != 0 && tag != yaml_STR_TAG && tag != yaml_BINARY_TAG { - // Handle things we can lookup in a map. - if item, ok := resolveMap[in]; ok { - return item.tag, item.value - } - - // Base 60 floats are a bad idea, were dropped in YAML 1.2, and - // are purposefully unsupported here. They're still quoted on - // the way out for compatibility with other parser, though. - - switch hint { - case 'M': - // We've already checked the map above. - - case '.': - // Not in the map, so maybe a normal float. - floatv, err := strconv.ParseFloat(in, 64) - if err == nil { - return yaml_FLOAT_TAG, floatv - } - - case 'D', 'S': - // Int, float, or timestamp. - // Only try values as a timestamp if the value is unquoted or there's an explicit - // !!timestamp tag. - if tag == "" || tag == yaml_TIMESTAMP_TAG { - t, ok := parseTimestamp(in) - if ok { - return yaml_TIMESTAMP_TAG, t - } - } - - plain := strings.Replace(in, "_", "", -1) - intv, err := strconv.ParseInt(plain, 0, 64) - if err == nil { - if intv == int64(int(intv)) { - return yaml_INT_TAG, int(intv) - } else { - return yaml_INT_TAG, intv - } - } - uintv, err := strconv.ParseUint(plain, 0, 64) - if err == nil { - return yaml_INT_TAG, uintv - } - if yamlStyleFloat.MatchString(plain) { - floatv, err := strconv.ParseFloat(plain, 64) - if err == nil { - return yaml_FLOAT_TAG, floatv - } - } - if strings.HasPrefix(plain, "0b") { - intv, err := strconv.ParseInt(plain[2:], 2, 64) - if err == nil { - if intv == int64(int(intv)) { - return yaml_INT_TAG, int(intv) - } else { - return yaml_INT_TAG, intv - } - } - uintv, err := strconv.ParseUint(plain[2:], 2, 64) - if err == nil { - return yaml_INT_TAG, uintv - } - } else if strings.HasPrefix(plain, "-0b") { - intv, err := strconv.ParseInt("-" + plain[3:], 2, 64) - if err == nil { - if true || intv == int64(int(intv)) { - return yaml_INT_TAG, int(intv) - } else { - return yaml_INT_TAG, intv - } - } - } - default: - panic("resolveTable item not yet handled: " + string(rune(hint)) + " (with " + in + ")") - } - } - return yaml_STR_TAG, in -} - -// encodeBase64 encodes s as base64 that is broken up into multiple lines -// as appropriate for the resulting length. -func encodeBase64(s string) string { - const lineLen = 70 - encLen := base64.StdEncoding.EncodedLen(len(s)) - lines := encLen/lineLen + 1 - buf := make([]byte, encLen*2+lines) - in := buf[0:encLen] - out := buf[encLen:] - base64.StdEncoding.Encode(in, []byte(s)) - k := 0 - for i := 0; i < len(in); i += lineLen { - j := i + lineLen - if j > len(in) { - j = len(in) - } - k += copy(out[k:], in[i:j]) - if lines > 1 { - out[k] = '\n' - k++ - } - } - return string(out[:k]) -} - -// This is a subset of the formats allowed by the regular expression -// defined at http://yaml.org/type/timestamp.html. -var allowedTimestampFormats = []string{ - "2006-1-2T15:4:5.999999999Z07:00", // RCF3339Nano with short date fields. - "2006-1-2t15:4:5.999999999Z07:00", // RFC3339Nano with short date fields and lower-case "t". - "2006-1-2 15:4:5.999999999", // space separated with no time zone - "2006-1-2", // date only - // Notable exception: time.Parse cannot handle: "2001-12-14 21:59:43.10 -5" - // from the set of examples. -} - -// parseTimestamp parses s as a timestamp string and -// returns the timestamp and reports whether it succeeded. -// Timestamp formats are defined at http://yaml.org/type/timestamp.html -func parseTimestamp(s string) (time.Time, bool) { - // TODO write code to check all the formats supported by - // http://yaml.org/type/timestamp.html instead of using time.Parse. - - // Quick check: all date formats start with YYYY-. - i := 0 - for ; i < len(s); i++ { - if c := s[i]; c < '0' || c > '9' { - break - } - } - if i != 4 || i == len(s) || s[i] != '-' { - return time.Time{}, false - } - for _, format := range allowedTimestampFormats { - if t, err := time.Parse(format, s); err == nil { - return t, true - } - } - return time.Time{}, false -} diff --git a/vendor/gopkg.in/yaml.v2/scannerc.go b/vendor/gopkg.in/yaml.v2/scannerc.go deleted file mode 100644 index 0b9bb60..0000000 --- a/vendor/gopkg.in/yaml.v2/scannerc.go +++ /dev/null @@ -1,2711 +0,0 @@ -package yaml - -import ( - "bytes" - "fmt" -) - -// Introduction -// ************ -// -// The following notes assume that you are familiar with the YAML specification -// (http://yaml.org/spec/1.2/spec.html). We mostly follow it, although in -// some cases we are less restrictive that it requires. -// -// The process of transforming a YAML stream into a sequence of events is -// divided on two steps: Scanning and Parsing. -// -// The Scanner transforms the input stream into a sequence of tokens, while the -// parser transform the sequence of tokens produced by the Scanner into a -// sequence of parsing events. -// -// The Scanner is rather clever and complicated. The Parser, on the contrary, -// is a straightforward implementation of a recursive-descendant parser (or, -// LL(1) parser, as it is usually called). -// -// Actually there are two issues of Scanning that might be called "clever", the -// rest is quite straightforward. The issues are "block collection start" and -// "simple keys". Both issues are explained below in details. -// -// Here the Scanning step is explained and implemented. We start with the list -// of all the tokens produced by the Scanner together with short descriptions. -// -// Now, tokens: -// -// STREAM-START(encoding) # The stream start. -// STREAM-END # The stream end. -// VERSION-DIRECTIVE(major,minor) # The '%YAML' directive. -// TAG-DIRECTIVE(handle,prefix) # The '%TAG' directive. -// DOCUMENT-START # '---' -// DOCUMENT-END # '...' -// BLOCK-SEQUENCE-START # Indentation increase denoting a block -// BLOCK-MAPPING-START # sequence or a block mapping. -// BLOCK-END # Indentation decrease. -// FLOW-SEQUENCE-START # '[' -// FLOW-SEQUENCE-END # ']' -// BLOCK-SEQUENCE-START # '{' -// BLOCK-SEQUENCE-END # '}' -// BLOCK-ENTRY # '-' -// FLOW-ENTRY # ',' -// KEY # '?' or nothing (simple keys). -// VALUE # ':' -// ALIAS(anchor) # '*anchor' -// ANCHOR(anchor) # '&anchor' -// TAG(handle,suffix) # '!handle!suffix' -// SCALAR(value,style) # A scalar. -// -// The following two tokens are "virtual" tokens denoting the beginning and the -// end of the stream: -// -// STREAM-START(encoding) -// STREAM-END -// -// We pass the information about the input stream encoding with the -// STREAM-START token. -// -// The next two tokens are responsible for tags: -// -// VERSION-DIRECTIVE(major,minor) -// TAG-DIRECTIVE(handle,prefix) -// -// Example: -// -// %YAML 1.1 -// %TAG ! !foo -// %TAG !yaml! tag:yaml.org,2002: -// --- -// -// The correspoding sequence of tokens: -// -// STREAM-START(utf-8) -// VERSION-DIRECTIVE(1,1) -// TAG-DIRECTIVE("!","!foo") -// TAG-DIRECTIVE("!yaml","tag:yaml.org,2002:") -// DOCUMENT-START -// STREAM-END -// -// Note that the VERSION-DIRECTIVE and TAG-DIRECTIVE tokens occupy a whole -// line. -// -// The document start and end indicators are represented by: -// -// DOCUMENT-START -// DOCUMENT-END -// -// Note that if a YAML stream contains an implicit document (without '---' -// and '...' indicators), no DOCUMENT-START and DOCUMENT-END tokens will be -// produced. -// -// In the following examples, we present whole documents together with the -// produced tokens. -// -// 1. An implicit document: -// -// 'a scalar' -// -// Tokens: -// -// STREAM-START(utf-8) -// SCALAR("a scalar",single-quoted) -// STREAM-END -// -// 2. An explicit document: -// -// --- -// 'a scalar' -// ... -// -// Tokens: -// -// STREAM-START(utf-8) -// DOCUMENT-START -// SCALAR("a scalar",single-quoted) -// DOCUMENT-END -// STREAM-END -// -// 3. Several documents in a stream: -// -// 'a scalar' -// --- -// 'another scalar' -// --- -// 'yet another scalar' -// -// Tokens: -// -// STREAM-START(utf-8) -// SCALAR("a scalar",single-quoted) -// DOCUMENT-START -// SCALAR("another scalar",single-quoted) -// DOCUMENT-START -// SCALAR("yet another scalar",single-quoted) -// STREAM-END -// -// We have already introduced the SCALAR token above. The following tokens are -// used to describe aliases, anchors, tag, and scalars: -// -// ALIAS(anchor) -// ANCHOR(anchor) -// TAG(handle,suffix) -// SCALAR(value,style) -// -// The following series of examples illustrate the usage of these tokens: -// -// 1. A recursive sequence: -// -// &A [ *A ] -// -// Tokens: -// -// STREAM-START(utf-8) -// ANCHOR("A") -// FLOW-SEQUENCE-START -// ALIAS("A") -// FLOW-SEQUENCE-END -// STREAM-END -// -// 2. A tagged scalar: -// -// !!float "3.14" # A good approximation. -// -// Tokens: -// -// STREAM-START(utf-8) -// TAG("!!","float") -// SCALAR("3.14",double-quoted) -// STREAM-END -// -// 3. Various scalar styles: -// -// --- # Implicit empty plain scalars do not produce tokens. -// --- a plain scalar -// --- 'a single-quoted scalar' -// --- "a double-quoted scalar" -// --- |- -// a literal scalar -// --- >- -// a folded -// scalar -// -// Tokens: -// -// STREAM-START(utf-8) -// DOCUMENT-START -// DOCUMENT-START -// SCALAR("a plain scalar",plain) -// DOCUMENT-START -// SCALAR("a single-quoted scalar",single-quoted) -// DOCUMENT-START -// SCALAR("a double-quoted scalar",double-quoted) -// DOCUMENT-START -// SCALAR("a literal scalar",literal) -// DOCUMENT-START -// SCALAR("a folded scalar",folded) -// STREAM-END -// -// Now it's time to review collection-related tokens. We will start with -// flow collections: -// -// FLOW-SEQUENCE-START -// FLOW-SEQUENCE-END -// FLOW-MAPPING-START -// FLOW-MAPPING-END -// FLOW-ENTRY -// KEY -// VALUE -// -// The tokens FLOW-SEQUENCE-START, FLOW-SEQUENCE-END, FLOW-MAPPING-START, and -// FLOW-MAPPING-END represent the indicators '[', ']', '{', and '}' -// correspondingly. FLOW-ENTRY represent the ',' indicator. Finally the -// indicators '?' and ':', which are used for denoting mapping keys and values, -// are represented by the KEY and VALUE tokens. -// -// The following examples show flow collections: -// -// 1. A flow sequence: -// -// [item 1, item 2, item 3] -// -// Tokens: -// -// STREAM-START(utf-8) -// FLOW-SEQUENCE-START -// SCALAR("item 1",plain) -// FLOW-ENTRY -// SCALAR("item 2",plain) -// FLOW-ENTRY -// SCALAR("item 3",plain) -// FLOW-SEQUENCE-END -// STREAM-END -// -// 2. A flow mapping: -// -// { -// a simple key: a value, # Note that the KEY token is produced. -// ? a complex key: another value, -// } -// -// Tokens: -// -// STREAM-START(utf-8) -// FLOW-MAPPING-START -// KEY -// SCALAR("a simple key",plain) -// VALUE -// SCALAR("a value",plain) -// FLOW-ENTRY -// KEY -// SCALAR("a complex key",plain) -// VALUE -// SCALAR("another value",plain) -// FLOW-ENTRY -// FLOW-MAPPING-END -// STREAM-END -// -// A simple key is a key which is not denoted by the '?' indicator. Note that -// the Scanner still produce the KEY token whenever it encounters a simple key. -// -// For scanning block collections, the following tokens are used (note that we -// repeat KEY and VALUE here): -// -// BLOCK-SEQUENCE-START -// BLOCK-MAPPING-START -// BLOCK-END -// BLOCK-ENTRY -// KEY -// VALUE -// -// The tokens BLOCK-SEQUENCE-START and BLOCK-MAPPING-START denote indentation -// increase that precedes a block collection (cf. the INDENT token in Python). -// The token BLOCK-END denote indentation decrease that ends a block collection -// (cf. the DEDENT token in Python). However YAML has some syntax pecularities -// that makes detections of these tokens more complex. -// -// The tokens BLOCK-ENTRY, KEY, and VALUE are used to represent the indicators -// '-', '?', and ':' correspondingly. -// -// The following examples show how the tokens BLOCK-SEQUENCE-START, -// BLOCK-MAPPING-START, and BLOCK-END are emitted by the Scanner: -// -// 1. Block sequences: -// -// - item 1 -// - item 2 -// - -// - item 3.1 -// - item 3.2 -// - -// key 1: value 1 -// key 2: value 2 -// -// Tokens: -// -// STREAM-START(utf-8) -// BLOCK-SEQUENCE-START -// BLOCK-ENTRY -// SCALAR("item 1",plain) -// BLOCK-ENTRY -// SCALAR("item 2",plain) -// BLOCK-ENTRY -// BLOCK-SEQUENCE-START -// BLOCK-ENTRY -// SCALAR("item 3.1",plain) -// BLOCK-ENTRY -// SCALAR("item 3.2",plain) -// BLOCK-END -// BLOCK-ENTRY -// BLOCK-MAPPING-START -// KEY -// SCALAR("key 1",plain) -// VALUE -// SCALAR("value 1",plain) -// KEY -// SCALAR("key 2",plain) -// VALUE -// SCALAR("value 2",plain) -// BLOCK-END -// BLOCK-END -// STREAM-END -// -// 2. Block mappings: -// -// a simple key: a value # The KEY token is produced here. -// ? a complex key -// : another value -// a mapping: -// key 1: value 1 -// key 2: value 2 -// a sequence: -// - item 1 -// - item 2 -// -// Tokens: -// -// STREAM-START(utf-8) -// BLOCK-MAPPING-START -// KEY -// SCALAR("a simple key",plain) -// VALUE -// SCALAR("a value",plain) -// KEY -// SCALAR("a complex key",plain) -// VALUE -// SCALAR("another value",plain) -// KEY -// SCALAR("a mapping",plain) -// BLOCK-MAPPING-START -// KEY -// SCALAR("key 1",plain) -// VALUE -// SCALAR("value 1",plain) -// KEY -// SCALAR("key 2",plain) -// VALUE -// SCALAR("value 2",plain) -// BLOCK-END -// KEY -// SCALAR("a sequence",plain) -// VALUE -// BLOCK-SEQUENCE-START -// BLOCK-ENTRY -// SCALAR("item 1",plain) -// BLOCK-ENTRY -// SCALAR("item 2",plain) -// BLOCK-END -// BLOCK-END -// STREAM-END -// -// YAML does not always require to start a new block collection from a new -// line. If the current line contains only '-', '?', and ':' indicators, a new -// block collection may start at the current line. The following examples -// illustrate this case: -// -// 1. Collections in a sequence: -// -// - - item 1 -// - item 2 -// - key 1: value 1 -// key 2: value 2 -// - ? complex key -// : complex value -// -// Tokens: -// -// STREAM-START(utf-8) -// BLOCK-SEQUENCE-START -// BLOCK-ENTRY -// BLOCK-SEQUENCE-START -// BLOCK-ENTRY -// SCALAR("item 1",plain) -// BLOCK-ENTRY -// SCALAR("item 2",plain) -// BLOCK-END -// BLOCK-ENTRY -// BLOCK-MAPPING-START -// KEY -// SCALAR("key 1",plain) -// VALUE -// SCALAR("value 1",plain) -// KEY -// SCALAR("key 2",plain) -// VALUE -// SCALAR("value 2",plain) -// BLOCK-END -// BLOCK-ENTRY -// BLOCK-MAPPING-START -// KEY -// SCALAR("complex key") -// VALUE -// SCALAR("complex value") -// BLOCK-END -// BLOCK-END -// STREAM-END -// -// 2. Collections in a mapping: -// -// ? a sequence -// : - item 1 -// - item 2 -// ? a mapping -// : key 1: value 1 -// key 2: value 2 -// -// Tokens: -// -// STREAM-START(utf-8) -// BLOCK-MAPPING-START -// KEY -// SCALAR("a sequence",plain) -// VALUE -// BLOCK-SEQUENCE-START -// BLOCK-ENTRY -// SCALAR("item 1",plain) -// BLOCK-ENTRY -// SCALAR("item 2",plain) -// BLOCK-END -// KEY -// SCALAR("a mapping",plain) -// VALUE -// BLOCK-MAPPING-START -// KEY -// SCALAR("key 1",plain) -// VALUE -// SCALAR("value 1",plain) -// KEY -// SCALAR("key 2",plain) -// VALUE -// SCALAR("value 2",plain) -// BLOCK-END -// BLOCK-END -// STREAM-END -// -// YAML also permits non-indented sequences if they are included into a block -// mapping. In this case, the token BLOCK-SEQUENCE-START is not produced: -// -// key: -// - item 1 # BLOCK-SEQUENCE-START is NOT produced here. -// - item 2 -// -// Tokens: -// -// STREAM-START(utf-8) -// BLOCK-MAPPING-START -// KEY -// SCALAR("key",plain) -// VALUE -// BLOCK-ENTRY -// SCALAR("item 1",plain) -// BLOCK-ENTRY -// SCALAR("item 2",plain) -// BLOCK-END -// - -// Ensure that the buffer contains the required number of characters. -// Return true on success, false on failure (reader error or memory error). -func cache(parser *yaml_parser_t, length int) bool { - // [Go] This was inlined: !cache(A, B) -> unread < B && !update(A, B) - return parser.unread >= length || yaml_parser_update_buffer(parser, length) -} - -// Advance the buffer pointer. -func skip(parser *yaml_parser_t) { - parser.mark.index++ - parser.mark.column++ - parser.unread-- - parser.buffer_pos += width(parser.buffer[parser.buffer_pos]) -} - -func skip_line(parser *yaml_parser_t) { - if is_crlf(parser.buffer, parser.buffer_pos) { - parser.mark.index += 2 - parser.mark.column = 0 - parser.mark.line++ - parser.unread -= 2 - parser.buffer_pos += 2 - } else if is_break(parser.buffer, parser.buffer_pos) { - parser.mark.index++ - parser.mark.column = 0 - parser.mark.line++ - parser.unread-- - parser.buffer_pos += width(parser.buffer[parser.buffer_pos]) - } -} - -// Copy a character to a string buffer and advance pointers. -func read(parser *yaml_parser_t, s []byte) []byte { - w := width(parser.buffer[parser.buffer_pos]) - if w == 0 { - panic("invalid character sequence") - } - if len(s) == 0 { - s = make([]byte, 0, 32) - } - if w == 1 && len(s)+w <= cap(s) { - s = s[:len(s)+1] - s[len(s)-1] = parser.buffer[parser.buffer_pos] - parser.buffer_pos++ - } else { - s = append(s, parser.buffer[parser.buffer_pos:parser.buffer_pos+w]...) - parser.buffer_pos += w - } - parser.mark.index++ - parser.mark.column++ - parser.unread-- - return s -} - -// Copy a line break character to a string buffer and advance pointers. -func read_line(parser *yaml_parser_t, s []byte) []byte { - buf := parser.buffer - pos := parser.buffer_pos - switch { - case buf[pos] == '\r' && buf[pos+1] == '\n': - // CR LF . LF - s = append(s, '\n') - parser.buffer_pos += 2 - parser.mark.index++ - parser.unread-- - case buf[pos] == '\r' || buf[pos] == '\n': - // CR|LF . LF - s = append(s, '\n') - parser.buffer_pos += 1 - case buf[pos] == '\xC2' && buf[pos+1] == '\x85': - // NEL . LF - s = append(s, '\n') - parser.buffer_pos += 2 - case buf[pos] == '\xE2' && buf[pos+1] == '\x80' && (buf[pos+2] == '\xA8' || buf[pos+2] == '\xA9'): - // LS|PS . LS|PS - s = append(s, buf[parser.buffer_pos:pos+3]...) - parser.buffer_pos += 3 - default: - return s - } - parser.mark.index++ - parser.mark.column = 0 - parser.mark.line++ - parser.unread-- - return s -} - -// Get the next token. -func yaml_parser_scan(parser *yaml_parser_t, token *yaml_token_t) bool { - // Erase the token object. - *token = yaml_token_t{} // [Go] Is this necessary? - - // No tokens after STREAM-END or error. - if parser.stream_end_produced || parser.error != yaml_NO_ERROR { - return true - } - - // Ensure that the tokens queue contains enough tokens. - if !parser.token_available { - if !yaml_parser_fetch_more_tokens(parser) { - return false - } - } - - // Fetch the next token from the queue. - *token = parser.tokens[parser.tokens_head] - parser.tokens_head++ - parser.tokens_parsed++ - parser.token_available = false - - if token.typ == yaml_STREAM_END_TOKEN { - parser.stream_end_produced = true - } - return true -} - -// Set the scanner error and return false. -func yaml_parser_set_scanner_error(parser *yaml_parser_t, context string, context_mark yaml_mark_t, problem string) bool { - parser.error = yaml_SCANNER_ERROR - parser.context = context - parser.context_mark = context_mark - parser.problem = problem - parser.problem_mark = parser.mark - return false -} - -func yaml_parser_set_scanner_tag_error(parser *yaml_parser_t, directive bool, context_mark yaml_mark_t, problem string) bool { - context := "while parsing a tag" - if directive { - context = "while parsing a %TAG directive" - } - return yaml_parser_set_scanner_error(parser, context, context_mark, problem) -} - -func trace(args ...interface{}) func() { - pargs := append([]interface{}{"+++"}, args...) - fmt.Println(pargs...) - pargs = append([]interface{}{"---"}, args...) - return func() { fmt.Println(pargs...) } -} - -// Ensure that the tokens queue contains at least one token which can be -// returned to the Parser. -func yaml_parser_fetch_more_tokens(parser *yaml_parser_t) bool { - // While we need more tokens to fetch, do it. - for { - if parser.tokens_head != len(parser.tokens) { - // If queue is non-empty, check if any potential simple key may - // occupy the head position. - head_tok_idx, ok := parser.simple_keys_by_tok[parser.tokens_parsed] - if !ok { - break - } else if valid, ok := yaml_simple_key_is_valid(parser, &parser.simple_keys[head_tok_idx]); !ok { - return false - } else if !valid { - break - } - } - // Fetch the next token. - if !yaml_parser_fetch_next_token(parser) { - return false - } - } - - parser.token_available = true - return true -} - -// The dispatcher for token fetchers. -func yaml_parser_fetch_next_token(parser *yaml_parser_t) bool { - // Ensure that the buffer is initialized. - if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) { - return false - } - - // Check if we just started scanning. Fetch STREAM-START then. - if !parser.stream_start_produced { - return yaml_parser_fetch_stream_start(parser) - } - - // Eat whitespaces and comments until we reach the next token. - if !yaml_parser_scan_to_next_token(parser) { - return false - } - - // Check the indentation level against the current column. - if !yaml_parser_unroll_indent(parser, parser.mark.column) { - return false - } - - // Ensure that the buffer contains at least 4 characters. 4 is the length - // of the longest indicators ('--- ' and '... '). - if parser.unread < 4 && !yaml_parser_update_buffer(parser, 4) { - return false - } - - // Is it the end of the stream? - if is_z(parser.buffer, parser.buffer_pos) { - return yaml_parser_fetch_stream_end(parser) - } - - // Is it a directive? - if parser.mark.column == 0 && parser.buffer[parser.buffer_pos] == '%' { - return yaml_parser_fetch_directive(parser) - } - - buf := parser.buffer - pos := parser.buffer_pos - - // Is it the document start indicator? - if parser.mark.column == 0 && buf[pos] == '-' && buf[pos+1] == '-' && buf[pos+2] == '-' && is_blankz(buf, pos+3) { - return yaml_parser_fetch_document_indicator(parser, yaml_DOCUMENT_START_TOKEN) - } - - // Is it the document end indicator? - if parser.mark.column == 0 && buf[pos] == '.' && buf[pos+1] == '.' && buf[pos+2] == '.' && is_blankz(buf, pos+3) { - return yaml_parser_fetch_document_indicator(parser, yaml_DOCUMENT_END_TOKEN) - } - - // Is it the flow sequence start indicator? - if buf[pos] == '[' { - return yaml_parser_fetch_flow_collection_start(parser, yaml_FLOW_SEQUENCE_START_TOKEN) - } - - // Is it the flow mapping start indicator? - if parser.buffer[parser.buffer_pos] == '{' { - return yaml_parser_fetch_flow_collection_start(parser, yaml_FLOW_MAPPING_START_TOKEN) - } - - // Is it the flow sequence end indicator? - if parser.buffer[parser.buffer_pos] == ']' { - return yaml_parser_fetch_flow_collection_end(parser, - yaml_FLOW_SEQUENCE_END_TOKEN) - } - - // Is it the flow mapping end indicator? - if parser.buffer[parser.buffer_pos] == '}' { - return yaml_parser_fetch_flow_collection_end(parser, - yaml_FLOW_MAPPING_END_TOKEN) - } - - // Is it the flow entry indicator? - if parser.buffer[parser.buffer_pos] == ',' { - return yaml_parser_fetch_flow_entry(parser) - } - - // Is it the block entry indicator? - if parser.buffer[parser.buffer_pos] == '-' && is_blankz(parser.buffer, parser.buffer_pos+1) { - return yaml_parser_fetch_block_entry(parser) - } - - // Is it the key indicator? - if parser.buffer[parser.buffer_pos] == '?' && (parser.flow_level > 0 || is_blankz(parser.buffer, parser.buffer_pos+1)) { - return yaml_parser_fetch_key(parser) - } - - // Is it the value indicator? - if parser.buffer[parser.buffer_pos] == ':' && (parser.flow_level > 0 || is_blankz(parser.buffer, parser.buffer_pos+1)) { - return yaml_parser_fetch_value(parser) - } - - // Is it an alias? - if parser.buffer[parser.buffer_pos] == '*' { - return yaml_parser_fetch_anchor(parser, yaml_ALIAS_TOKEN) - } - - // Is it an anchor? - if parser.buffer[parser.buffer_pos] == '&' { - return yaml_parser_fetch_anchor(parser, yaml_ANCHOR_TOKEN) - } - - // Is it a tag? - if parser.buffer[parser.buffer_pos] == '!' { - return yaml_parser_fetch_tag(parser) - } - - // Is it a literal scalar? - if parser.buffer[parser.buffer_pos] == '|' && parser.flow_level == 0 { - return yaml_parser_fetch_block_scalar(parser, true) - } - - // Is it a folded scalar? - if parser.buffer[parser.buffer_pos] == '>' && parser.flow_level == 0 { - return yaml_parser_fetch_block_scalar(parser, false) - } - - // Is it a single-quoted scalar? - if parser.buffer[parser.buffer_pos] == '\'' { - return yaml_parser_fetch_flow_scalar(parser, true) - } - - // Is it a double-quoted scalar? - if parser.buffer[parser.buffer_pos] == '"' { - return yaml_parser_fetch_flow_scalar(parser, false) - } - - // Is it a plain scalar? - // - // A plain scalar may start with any non-blank characters except - // - // '-', '?', ':', ',', '[', ']', '{', '}', - // '#', '&', '*', '!', '|', '>', '\'', '\"', - // '%', '@', '`'. - // - // In the block context (and, for the '-' indicator, in the flow context - // too), it may also start with the characters - // - // '-', '?', ':' - // - // if it is followed by a non-space character. - // - // The last rule is more restrictive than the specification requires. - // [Go] Make this logic more reasonable. - //switch parser.buffer[parser.buffer_pos] { - //case '-', '?', ':', ',', '?', '-', ',', ':', ']', '[', '}', '{', '&', '#', '!', '*', '>', '|', '"', '\'', '@', '%', '-', '`': - //} - if !(is_blankz(parser.buffer, parser.buffer_pos) || parser.buffer[parser.buffer_pos] == '-' || - parser.buffer[parser.buffer_pos] == '?' || parser.buffer[parser.buffer_pos] == ':' || - parser.buffer[parser.buffer_pos] == ',' || parser.buffer[parser.buffer_pos] == '[' || - parser.buffer[parser.buffer_pos] == ']' || parser.buffer[parser.buffer_pos] == '{' || - parser.buffer[parser.buffer_pos] == '}' || parser.buffer[parser.buffer_pos] == '#' || - parser.buffer[parser.buffer_pos] == '&' || parser.buffer[parser.buffer_pos] == '*' || - parser.buffer[parser.buffer_pos] == '!' || parser.buffer[parser.buffer_pos] == '|' || - parser.buffer[parser.buffer_pos] == '>' || parser.buffer[parser.buffer_pos] == '\'' || - parser.buffer[parser.buffer_pos] == '"' || parser.buffer[parser.buffer_pos] == '%' || - parser.buffer[parser.buffer_pos] == '@' || parser.buffer[parser.buffer_pos] == '`') || - (parser.buffer[parser.buffer_pos] == '-' && !is_blank(parser.buffer, parser.buffer_pos+1)) || - (parser.flow_level == 0 && - (parser.buffer[parser.buffer_pos] == '?' || parser.buffer[parser.buffer_pos] == ':') && - !is_blankz(parser.buffer, parser.buffer_pos+1)) { - return yaml_parser_fetch_plain_scalar(parser) - } - - // If we don't determine the token type so far, it is an error. - return yaml_parser_set_scanner_error(parser, - "while scanning for the next token", parser.mark, - "found character that cannot start any token") -} - -func yaml_simple_key_is_valid(parser *yaml_parser_t, simple_key *yaml_simple_key_t) (valid, ok bool) { - if !simple_key.possible { - return false, true - } - - // The 1.2 specification says: - // - // "If the ? indicator is omitted, parsing needs to see past the - // implicit key to recognize it as such. To limit the amount of - // lookahead required, the “:” indicator must appear at most 1024 - // Unicode characters beyond the start of the key. In addition, the key - // is restricted to a single line." - // - if simple_key.mark.line < parser.mark.line || simple_key.mark.index+1024 < parser.mark.index { - // Check if the potential simple key to be removed is required. - if simple_key.required { - return false, yaml_parser_set_scanner_error(parser, - "while scanning a simple key", simple_key.mark, - "could not find expected ':'") - } - simple_key.possible = false - return false, true - } - return true, true -} - -// Check if a simple key may start at the current position and add it if -// needed. -func yaml_parser_save_simple_key(parser *yaml_parser_t) bool { - // A simple key is required at the current position if the scanner is in - // the block context and the current column coincides with the indentation - // level. - - required := parser.flow_level == 0 && parser.indent == parser.mark.column - - // - // If the current position may start a simple key, save it. - // - if parser.simple_key_allowed { - simple_key := yaml_simple_key_t{ - possible: true, - required: required, - token_number: parser.tokens_parsed + (len(parser.tokens) - parser.tokens_head), - mark: parser.mark, - } - - if !yaml_parser_remove_simple_key(parser) { - return false - } - parser.simple_keys[len(parser.simple_keys)-1] = simple_key - parser.simple_keys_by_tok[simple_key.token_number] = len(parser.simple_keys) - 1 - } - return true -} - -// Remove a potential simple key at the current flow level. -func yaml_parser_remove_simple_key(parser *yaml_parser_t) bool { - i := len(parser.simple_keys) - 1 - if parser.simple_keys[i].possible { - // If the key is required, it is an error. - if parser.simple_keys[i].required { - return yaml_parser_set_scanner_error(parser, - "while scanning a simple key", parser.simple_keys[i].mark, - "could not find expected ':'") - } - // Remove the key from the stack. - parser.simple_keys[i].possible = false - delete(parser.simple_keys_by_tok, parser.simple_keys[i].token_number) - } - return true -} - -// max_flow_level limits the flow_level -const max_flow_level = 10000 - -// Increase the flow level and resize the simple key list if needed. -func yaml_parser_increase_flow_level(parser *yaml_parser_t) bool { - // Reset the simple key on the next level. - parser.simple_keys = append(parser.simple_keys, yaml_simple_key_t{ - possible: false, - required: false, - token_number: parser.tokens_parsed + (len(parser.tokens) - parser.tokens_head), - mark: parser.mark, - }) - - // Increase the flow level. - parser.flow_level++ - if parser.flow_level > max_flow_level { - return yaml_parser_set_scanner_error(parser, - "while increasing flow level", parser.simple_keys[len(parser.simple_keys)-1].mark, - fmt.Sprintf("exceeded max depth of %d", max_flow_level)) - } - return true -} - -// Decrease the flow level. -func yaml_parser_decrease_flow_level(parser *yaml_parser_t) bool { - if parser.flow_level > 0 { - parser.flow_level-- - last := len(parser.simple_keys) - 1 - delete(parser.simple_keys_by_tok, parser.simple_keys[last].token_number) - parser.simple_keys = parser.simple_keys[:last] - } - return true -} - -// max_indents limits the indents stack size -const max_indents = 10000 - -// Push the current indentation level to the stack and set the new level -// the current column is greater than the indentation level. In this case, -// append or insert the specified token into the token queue. -func yaml_parser_roll_indent(parser *yaml_parser_t, column, number int, typ yaml_token_type_t, mark yaml_mark_t) bool { - // In the flow context, do nothing. - if parser.flow_level > 0 { - return true - } - - if parser.indent < column { - // Push the current indentation level to the stack and set the new - // indentation level. - parser.indents = append(parser.indents, parser.indent) - parser.indent = column - if len(parser.indents) > max_indents { - return yaml_parser_set_scanner_error(parser, - "while increasing indent level", parser.simple_keys[len(parser.simple_keys)-1].mark, - fmt.Sprintf("exceeded max depth of %d", max_indents)) - } - - // Create a token and insert it into the queue. - token := yaml_token_t{ - typ: typ, - start_mark: mark, - end_mark: mark, - } - if number > -1 { - number -= parser.tokens_parsed - } - yaml_insert_token(parser, number, &token) - } - return true -} - -// Pop indentation levels from the indents stack until the current level -// becomes less or equal to the column. For each indentation level, append -// the BLOCK-END token. -func yaml_parser_unroll_indent(parser *yaml_parser_t, column int) bool { - // In the flow context, do nothing. - if parser.flow_level > 0 { - return true - } - - // Loop through the indentation levels in the stack. - for parser.indent > column { - // Create a token and append it to the queue. - token := yaml_token_t{ - typ: yaml_BLOCK_END_TOKEN, - start_mark: parser.mark, - end_mark: parser.mark, - } - yaml_insert_token(parser, -1, &token) - - // Pop the indentation level. - parser.indent = parser.indents[len(parser.indents)-1] - parser.indents = parser.indents[:len(parser.indents)-1] - } - return true -} - -// Initialize the scanner and produce the STREAM-START token. -func yaml_parser_fetch_stream_start(parser *yaml_parser_t) bool { - - // Set the initial indentation. - parser.indent = -1 - - // Initialize the simple key stack. - parser.simple_keys = append(parser.simple_keys, yaml_simple_key_t{}) - - parser.simple_keys_by_tok = make(map[int]int) - - // A simple key is allowed at the beginning of the stream. - parser.simple_key_allowed = true - - // We have started. - parser.stream_start_produced = true - - // Create the STREAM-START token and append it to the queue. - token := yaml_token_t{ - typ: yaml_STREAM_START_TOKEN, - start_mark: parser.mark, - end_mark: parser.mark, - encoding: parser.encoding, - } - yaml_insert_token(parser, -1, &token) - return true -} - -// Produce the STREAM-END token and shut down the scanner. -func yaml_parser_fetch_stream_end(parser *yaml_parser_t) bool { - - // Force new line. - if parser.mark.column != 0 { - parser.mark.column = 0 - parser.mark.line++ - } - - // Reset the indentation level. - if !yaml_parser_unroll_indent(parser, -1) { - return false - } - - // Reset simple keys. - if !yaml_parser_remove_simple_key(parser) { - return false - } - - parser.simple_key_allowed = false - - // Create the STREAM-END token and append it to the queue. - token := yaml_token_t{ - typ: yaml_STREAM_END_TOKEN, - start_mark: parser.mark, - end_mark: parser.mark, - } - yaml_insert_token(parser, -1, &token) - return true -} - -// Produce a VERSION-DIRECTIVE or TAG-DIRECTIVE token. -func yaml_parser_fetch_directive(parser *yaml_parser_t) bool { - // Reset the indentation level. - if !yaml_parser_unroll_indent(parser, -1) { - return false - } - - // Reset simple keys. - if !yaml_parser_remove_simple_key(parser) { - return false - } - - parser.simple_key_allowed = false - - // Create the YAML-DIRECTIVE or TAG-DIRECTIVE token. - token := yaml_token_t{} - if !yaml_parser_scan_directive(parser, &token) { - return false - } - // Append the token to the queue. - yaml_insert_token(parser, -1, &token) - return true -} - -// Produce the DOCUMENT-START or DOCUMENT-END token. -func yaml_parser_fetch_document_indicator(parser *yaml_parser_t, typ yaml_token_type_t) bool { - // Reset the indentation level. - if !yaml_parser_unroll_indent(parser, -1) { - return false - } - - // Reset simple keys. - if !yaml_parser_remove_simple_key(parser) { - return false - } - - parser.simple_key_allowed = false - - // Consume the token. - start_mark := parser.mark - - skip(parser) - skip(parser) - skip(parser) - - end_mark := parser.mark - - // Create the DOCUMENT-START or DOCUMENT-END token. - token := yaml_token_t{ - typ: typ, - start_mark: start_mark, - end_mark: end_mark, - } - // Append the token to the queue. - yaml_insert_token(parser, -1, &token) - return true -} - -// Produce the FLOW-SEQUENCE-START or FLOW-MAPPING-START token. -func yaml_parser_fetch_flow_collection_start(parser *yaml_parser_t, typ yaml_token_type_t) bool { - // The indicators '[' and '{' may start a simple key. - if !yaml_parser_save_simple_key(parser) { - return false - } - - // Increase the flow level. - if !yaml_parser_increase_flow_level(parser) { - return false - } - - // A simple key may follow the indicators '[' and '{'. - parser.simple_key_allowed = true - - // Consume the token. - start_mark := parser.mark - skip(parser) - end_mark := parser.mark - - // Create the FLOW-SEQUENCE-START of FLOW-MAPPING-START token. - token := yaml_token_t{ - typ: typ, - start_mark: start_mark, - end_mark: end_mark, - } - // Append the token to the queue. - yaml_insert_token(parser, -1, &token) - return true -} - -// Produce the FLOW-SEQUENCE-END or FLOW-MAPPING-END token. -func yaml_parser_fetch_flow_collection_end(parser *yaml_parser_t, typ yaml_token_type_t) bool { - // Reset any potential simple key on the current flow level. - if !yaml_parser_remove_simple_key(parser) { - return false - } - - // Decrease the flow level. - if !yaml_parser_decrease_flow_level(parser) { - return false - } - - // No simple keys after the indicators ']' and '}'. - parser.simple_key_allowed = false - - // Consume the token. - - start_mark := parser.mark - skip(parser) - end_mark := parser.mark - - // Create the FLOW-SEQUENCE-END of FLOW-MAPPING-END token. - token := yaml_token_t{ - typ: typ, - start_mark: start_mark, - end_mark: end_mark, - } - // Append the token to the queue. - yaml_insert_token(parser, -1, &token) - return true -} - -// Produce the FLOW-ENTRY token. -func yaml_parser_fetch_flow_entry(parser *yaml_parser_t) bool { - // Reset any potential simple keys on the current flow level. - if !yaml_parser_remove_simple_key(parser) { - return false - } - - // Simple keys are allowed after ','. - parser.simple_key_allowed = true - - // Consume the token. - start_mark := parser.mark - skip(parser) - end_mark := parser.mark - - // Create the FLOW-ENTRY token and append it to the queue. - token := yaml_token_t{ - typ: yaml_FLOW_ENTRY_TOKEN, - start_mark: start_mark, - end_mark: end_mark, - } - yaml_insert_token(parser, -1, &token) - return true -} - -// Produce the BLOCK-ENTRY token. -func yaml_parser_fetch_block_entry(parser *yaml_parser_t) bool { - // Check if the scanner is in the block context. - if parser.flow_level == 0 { - // Check if we are allowed to start a new entry. - if !parser.simple_key_allowed { - return yaml_parser_set_scanner_error(parser, "", parser.mark, - "block sequence entries are not allowed in this context") - } - // Add the BLOCK-SEQUENCE-START token if needed. - if !yaml_parser_roll_indent(parser, parser.mark.column, -1, yaml_BLOCK_SEQUENCE_START_TOKEN, parser.mark) { - return false - } - } else { - // It is an error for the '-' indicator to occur in the flow context, - // but we let the Parser detect and report about it because the Parser - // is able to point to the context. - } - - // Reset any potential simple keys on the current flow level. - if !yaml_parser_remove_simple_key(parser) { - return false - } - - // Simple keys are allowed after '-'. - parser.simple_key_allowed = true - - // Consume the token. - start_mark := parser.mark - skip(parser) - end_mark := parser.mark - - // Create the BLOCK-ENTRY token and append it to the queue. - token := yaml_token_t{ - typ: yaml_BLOCK_ENTRY_TOKEN, - start_mark: start_mark, - end_mark: end_mark, - } - yaml_insert_token(parser, -1, &token) - return true -} - -// Produce the KEY token. -func yaml_parser_fetch_key(parser *yaml_parser_t) bool { - - // In the block context, additional checks are required. - if parser.flow_level == 0 { - // Check if we are allowed to start a new key (not nessesary simple). - if !parser.simple_key_allowed { - return yaml_parser_set_scanner_error(parser, "", parser.mark, - "mapping keys are not allowed in this context") - } - // Add the BLOCK-MAPPING-START token if needed. - if !yaml_parser_roll_indent(parser, parser.mark.column, -1, yaml_BLOCK_MAPPING_START_TOKEN, parser.mark) { - return false - } - } - - // Reset any potential simple keys on the current flow level. - if !yaml_parser_remove_simple_key(parser) { - return false - } - - // Simple keys are allowed after '?' in the block context. - parser.simple_key_allowed = parser.flow_level == 0 - - // Consume the token. - start_mark := parser.mark - skip(parser) - end_mark := parser.mark - - // Create the KEY token and append it to the queue. - token := yaml_token_t{ - typ: yaml_KEY_TOKEN, - start_mark: start_mark, - end_mark: end_mark, - } - yaml_insert_token(parser, -1, &token) - return true -} - -// Produce the VALUE token. -func yaml_parser_fetch_value(parser *yaml_parser_t) bool { - - simple_key := &parser.simple_keys[len(parser.simple_keys)-1] - - // Have we found a simple key? - if valid, ok := yaml_simple_key_is_valid(parser, simple_key); !ok { - return false - - } else if valid { - - // Create the KEY token and insert it into the queue. - token := yaml_token_t{ - typ: yaml_KEY_TOKEN, - start_mark: simple_key.mark, - end_mark: simple_key.mark, - } - yaml_insert_token(parser, simple_key.token_number-parser.tokens_parsed, &token) - - // In the block context, we may need to add the BLOCK-MAPPING-START token. - if !yaml_parser_roll_indent(parser, simple_key.mark.column, - simple_key.token_number, - yaml_BLOCK_MAPPING_START_TOKEN, simple_key.mark) { - return false - } - - // Remove the simple key. - simple_key.possible = false - delete(parser.simple_keys_by_tok, simple_key.token_number) - - // A simple key cannot follow another simple key. - parser.simple_key_allowed = false - - } else { - // The ':' indicator follows a complex key. - - // In the block context, extra checks are required. - if parser.flow_level == 0 { - - // Check if we are allowed to start a complex value. - if !parser.simple_key_allowed { - return yaml_parser_set_scanner_error(parser, "", parser.mark, - "mapping values are not allowed in this context") - } - - // Add the BLOCK-MAPPING-START token if needed. - if !yaml_parser_roll_indent(parser, parser.mark.column, -1, yaml_BLOCK_MAPPING_START_TOKEN, parser.mark) { - return false - } - } - - // Simple keys after ':' are allowed in the block context. - parser.simple_key_allowed = parser.flow_level == 0 - } - - // Consume the token. - start_mark := parser.mark - skip(parser) - end_mark := parser.mark - - // Create the VALUE token and append it to the queue. - token := yaml_token_t{ - typ: yaml_VALUE_TOKEN, - start_mark: start_mark, - end_mark: end_mark, - } - yaml_insert_token(parser, -1, &token) - return true -} - -// Produce the ALIAS or ANCHOR token. -func yaml_parser_fetch_anchor(parser *yaml_parser_t, typ yaml_token_type_t) bool { - // An anchor or an alias could be a simple key. - if !yaml_parser_save_simple_key(parser) { - return false - } - - // A simple key cannot follow an anchor or an alias. - parser.simple_key_allowed = false - - // Create the ALIAS or ANCHOR token and append it to the queue. - var token yaml_token_t - if !yaml_parser_scan_anchor(parser, &token, typ) { - return false - } - yaml_insert_token(parser, -1, &token) - return true -} - -// Produce the TAG token. -func yaml_parser_fetch_tag(parser *yaml_parser_t) bool { - // A tag could be a simple key. - if !yaml_parser_save_simple_key(parser) { - return false - } - - // A simple key cannot follow a tag. - parser.simple_key_allowed = false - - // Create the TAG token and append it to the queue. - var token yaml_token_t - if !yaml_parser_scan_tag(parser, &token) { - return false - } - yaml_insert_token(parser, -1, &token) - return true -} - -// Produce the SCALAR(...,literal) or SCALAR(...,folded) tokens. -func yaml_parser_fetch_block_scalar(parser *yaml_parser_t, literal bool) bool { - // Remove any potential simple keys. - if !yaml_parser_remove_simple_key(parser) { - return false - } - - // A simple key may follow a block scalar. - parser.simple_key_allowed = true - - // Create the SCALAR token and append it to the queue. - var token yaml_token_t - if !yaml_parser_scan_block_scalar(parser, &token, literal) { - return false - } - yaml_insert_token(parser, -1, &token) - return true -} - -// Produce the SCALAR(...,single-quoted) or SCALAR(...,double-quoted) tokens. -func yaml_parser_fetch_flow_scalar(parser *yaml_parser_t, single bool) bool { - // A plain scalar could be a simple key. - if !yaml_parser_save_simple_key(parser) { - return false - } - - // A simple key cannot follow a flow scalar. - parser.simple_key_allowed = false - - // Create the SCALAR token and append it to the queue. - var token yaml_token_t - if !yaml_parser_scan_flow_scalar(parser, &token, single) { - return false - } - yaml_insert_token(parser, -1, &token) - return true -} - -// Produce the SCALAR(...,plain) token. -func yaml_parser_fetch_plain_scalar(parser *yaml_parser_t) bool { - // A plain scalar could be a simple key. - if !yaml_parser_save_simple_key(parser) { - return false - } - - // A simple key cannot follow a flow scalar. - parser.simple_key_allowed = false - - // Create the SCALAR token and append it to the queue. - var token yaml_token_t - if !yaml_parser_scan_plain_scalar(parser, &token) { - return false - } - yaml_insert_token(parser, -1, &token) - return true -} - -// Eat whitespaces and comments until the next token is found. -func yaml_parser_scan_to_next_token(parser *yaml_parser_t) bool { - - // Until the next token is not found. - for { - // Allow the BOM mark to start a line. - if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) { - return false - } - if parser.mark.column == 0 && is_bom(parser.buffer, parser.buffer_pos) { - skip(parser) - } - - // Eat whitespaces. - // Tabs are allowed: - // - in the flow context - // - in the block context, but not at the beginning of the line or - // after '-', '?', or ':' (complex value). - if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) { - return false - } - - for parser.buffer[parser.buffer_pos] == ' ' || ((parser.flow_level > 0 || !parser.simple_key_allowed) && parser.buffer[parser.buffer_pos] == '\t') { - skip(parser) - if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) { - return false - } - } - - // Eat a comment until a line break. - if parser.buffer[parser.buffer_pos] == '#' { - for !is_breakz(parser.buffer, parser.buffer_pos) { - skip(parser) - if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) { - return false - } - } - } - - // If it is a line break, eat it. - if is_break(parser.buffer, parser.buffer_pos) { - if parser.unread < 2 && !yaml_parser_update_buffer(parser, 2) { - return false - } - skip_line(parser) - - // In the block context, a new line may start a simple key. - if parser.flow_level == 0 { - parser.simple_key_allowed = true - } - } else { - break // We have found a token. - } - } - - return true -} - -// Scan a YAML-DIRECTIVE or TAG-DIRECTIVE token. -// -// Scope: -// %YAML 1.1 # a comment \n -// ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ -// %TAG !yaml! tag:yaml.org,2002: \n -// ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ -// -func yaml_parser_scan_directive(parser *yaml_parser_t, token *yaml_token_t) bool { - // Eat '%'. - start_mark := parser.mark - skip(parser) - - // Scan the directive name. - var name []byte - if !yaml_parser_scan_directive_name(parser, start_mark, &name) { - return false - } - - // Is it a YAML directive? - if bytes.Equal(name, []byte("YAML")) { - // Scan the VERSION directive value. - var major, minor int8 - if !yaml_parser_scan_version_directive_value(parser, start_mark, &major, &minor) { - return false - } - end_mark := parser.mark - - // Create a VERSION-DIRECTIVE token. - *token = yaml_token_t{ - typ: yaml_VERSION_DIRECTIVE_TOKEN, - start_mark: start_mark, - end_mark: end_mark, - major: major, - minor: minor, - } - - // Is it a TAG directive? - } else if bytes.Equal(name, []byte("TAG")) { - // Scan the TAG directive value. - var handle, prefix []byte - if !yaml_parser_scan_tag_directive_value(parser, start_mark, &handle, &prefix) { - return false - } - end_mark := parser.mark - - // Create a TAG-DIRECTIVE token. - *token = yaml_token_t{ - typ: yaml_TAG_DIRECTIVE_TOKEN, - start_mark: start_mark, - end_mark: end_mark, - value: handle, - prefix: prefix, - } - - // Unknown directive. - } else { - yaml_parser_set_scanner_error(parser, "while scanning a directive", - start_mark, "found unknown directive name") - return false - } - - // Eat the rest of the line including any comments. - if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) { - return false - } - - for is_blank(parser.buffer, parser.buffer_pos) { - skip(parser) - if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) { - return false - } - } - - if parser.buffer[parser.buffer_pos] == '#' { - for !is_breakz(parser.buffer, parser.buffer_pos) { - skip(parser) - if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) { - return false - } - } - } - - // Check if we are at the end of the line. - if !is_breakz(parser.buffer, parser.buffer_pos) { - yaml_parser_set_scanner_error(parser, "while scanning a directive", - start_mark, "did not find expected comment or line break") - return false - } - - // Eat a line break. - if is_break(parser.buffer, parser.buffer_pos) { - if parser.unread < 2 && !yaml_parser_update_buffer(parser, 2) { - return false - } - skip_line(parser) - } - - return true -} - -// Scan the directive name. -// -// Scope: -// %YAML 1.1 # a comment \n -// ^^^^ -// %TAG !yaml! tag:yaml.org,2002: \n -// ^^^ -// -func yaml_parser_scan_directive_name(parser *yaml_parser_t, start_mark yaml_mark_t, name *[]byte) bool { - // Consume the directive name. - if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) { - return false - } - - var s []byte - for is_alpha(parser.buffer, parser.buffer_pos) { - s = read(parser, s) - if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) { - return false - } - } - - // Check if the name is empty. - if len(s) == 0 { - yaml_parser_set_scanner_error(parser, "while scanning a directive", - start_mark, "could not find expected directive name") - return false - } - - // Check for an blank character after the name. - if !is_blankz(parser.buffer, parser.buffer_pos) { - yaml_parser_set_scanner_error(parser, "while scanning a directive", - start_mark, "found unexpected non-alphabetical character") - return false - } - *name = s - return true -} - -// Scan the value of VERSION-DIRECTIVE. -// -// Scope: -// %YAML 1.1 # a comment \n -// ^^^^^^ -func yaml_parser_scan_version_directive_value(parser *yaml_parser_t, start_mark yaml_mark_t, major, minor *int8) bool { - // Eat whitespaces. - if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) { - return false - } - for is_blank(parser.buffer, parser.buffer_pos) { - skip(parser) - if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) { - return false - } - } - - // Consume the major version number. - if !yaml_parser_scan_version_directive_number(parser, start_mark, major) { - return false - } - - // Eat '.'. - if parser.buffer[parser.buffer_pos] != '.' { - return yaml_parser_set_scanner_error(parser, "while scanning a %YAML directive", - start_mark, "did not find expected digit or '.' character") - } - - skip(parser) - - // Consume the minor version number. - if !yaml_parser_scan_version_directive_number(parser, start_mark, minor) { - return false - } - return true -} - -const max_number_length = 2 - -// Scan the version number of VERSION-DIRECTIVE. -// -// Scope: -// %YAML 1.1 # a comment \n -// ^ -// %YAML 1.1 # a comment \n -// ^ -func yaml_parser_scan_version_directive_number(parser *yaml_parser_t, start_mark yaml_mark_t, number *int8) bool { - - // Repeat while the next character is digit. - if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) { - return false - } - var value, length int8 - for is_digit(parser.buffer, parser.buffer_pos) { - // Check if the number is too long. - length++ - if length > max_number_length { - return yaml_parser_set_scanner_error(parser, "while scanning a %YAML directive", - start_mark, "found extremely long version number") - } - value = value*10 + int8(as_digit(parser.buffer, parser.buffer_pos)) - skip(parser) - if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) { - return false - } - } - - // Check if the number was present. - if length == 0 { - return yaml_parser_set_scanner_error(parser, "while scanning a %YAML directive", - start_mark, "did not find expected version number") - } - *number = value - return true -} - -// Scan the value of a TAG-DIRECTIVE token. -// -// Scope: -// %TAG !yaml! tag:yaml.org,2002: \n -// ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ -// -func yaml_parser_scan_tag_directive_value(parser *yaml_parser_t, start_mark yaml_mark_t, handle, prefix *[]byte) bool { - var handle_value, prefix_value []byte - - // Eat whitespaces. - if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) { - return false - } - - for is_blank(parser.buffer, parser.buffer_pos) { - skip(parser) - if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) { - return false - } - } - - // Scan a handle. - if !yaml_parser_scan_tag_handle(parser, true, start_mark, &handle_value) { - return false - } - - // Expect a whitespace. - if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) { - return false - } - if !is_blank(parser.buffer, parser.buffer_pos) { - yaml_parser_set_scanner_error(parser, "while scanning a %TAG directive", - start_mark, "did not find expected whitespace") - return false - } - - // Eat whitespaces. - for is_blank(parser.buffer, parser.buffer_pos) { - skip(parser) - if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) { - return false - } - } - - // Scan a prefix. - if !yaml_parser_scan_tag_uri(parser, true, nil, start_mark, &prefix_value) { - return false - } - - // Expect a whitespace or line break. - if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) { - return false - } - if !is_blankz(parser.buffer, parser.buffer_pos) { - yaml_parser_set_scanner_error(parser, "while scanning a %TAG directive", - start_mark, "did not find expected whitespace or line break") - return false - } - - *handle = handle_value - *prefix = prefix_value - return true -} - -func yaml_parser_scan_anchor(parser *yaml_parser_t, token *yaml_token_t, typ yaml_token_type_t) bool { - var s []byte - - // Eat the indicator character. - start_mark := parser.mark - skip(parser) - - // Consume the value. - if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) { - return false - } - - for is_alpha(parser.buffer, parser.buffer_pos) { - s = read(parser, s) - if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) { - return false - } - } - - end_mark := parser.mark - - /* - * Check if length of the anchor is greater than 0 and it is followed by - * a whitespace character or one of the indicators: - * - * '?', ':', ',', ']', '}', '%', '@', '`'. - */ - - if len(s) == 0 || - !(is_blankz(parser.buffer, parser.buffer_pos) || parser.buffer[parser.buffer_pos] == '?' || - parser.buffer[parser.buffer_pos] == ':' || parser.buffer[parser.buffer_pos] == ',' || - parser.buffer[parser.buffer_pos] == ']' || parser.buffer[parser.buffer_pos] == '}' || - parser.buffer[parser.buffer_pos] == '%' || parser.buffer[parser.buffer_pos] == '@' || - parser.buffer[parser.buffer_pos] == '`') { - context := "while scanning an alias" - if typ == yaml_ANCHOR_TOKEN { - context = "while scanning an anchor" - } - yaml_parser_set_scanner_error(parser, context, start_mark, - "did not find expected alphabetic or numeric character") - return false - } - - // Create a token. - *token = yaml_token_t{ - typ: typ, - start_mark: start_mark, - end_mark: end_mark, - value: s, - } - - return true -} - -/* - * Scan a TAG token. - */ - -func yaml_parser_scan_tag(parser *yaml_parser_t, token *yaml_token_t) bool { - var handle, suffix []byte - - start_mark := parser.mark - - // Check if the tag is in the canonical form. - if parser.unread < 2 && !yaml_parser_update_buffer(parser, 2) { - return false - } - - if parser.buffer[parser.buffer_pos+1] == '<' { - // Keep the handle as '' - - // Eat '!<' - skip(parser) - skip(parser) - - // Consume the tag value. - if !yaml_parser_scan_tag_uri(parser, false, nil, start_mark, &suffix) { - return false - } - - // Check for '>' and eat it. - if parser.buffer[parser.buffer_pos] != '>' { - yaml_parser_set_scanner_error(parser, "while scanning a tag", - start_mark, "did not find the expected '>'") - return false - } - - skip(parser) - } else { - // The tag has either the '!suffix' or the '!handle!suffix' form. - - // First, try to scan a handle. - if !yaml_parser_scan_tag_handle(parser, false, start_mark, &handle) { - return false - } - - // Check if it is, indeed, handle. - if handle[0] == '!' && len(handle) > 1 && handle[len(handle)-1] == '!' { - // Scan the suffix now. - if !yaml_parser_scan_tag_uri(parser, false, nil, start_mark, &suffix) { - return false - } - } else { - // It wasn't a handle after all. Scan the rest of the tag. - if !yaml_parser_scan_tag_uri(parser, false, handle, start_mark, &suffix) { - return false - } - - // Set the handle to '!'. - handle = []byte{'!'} - - // A special case: the '!' tag. Set the handle to '' and the - // suffix to '!'. - if len(suffix) == 0 { - handle, suffix = suffix, handle - } - } - } - - // Check the character which ends the tag. - if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) { - return false - } - if !is_blankz(parser.buffer, parser.buffer_pos) { - yaml_parser_set_scanner_error(parser, "while scanning a tag", - start_mark, "did not find expected whitespace or line break") - return false - } - - end_mark := parser.mark - - // Create a token. - *token = yaml_token_t{ - typ: yaml_TAG_TOKEN, - start_mark: start_mark, - end_mark: end_mark, - value: handle, - suffix: suffix, - } - return true -} - -// Scan a tag handle. -func yaml_parser_scan_tag_handle(parser *yaml_parser_t, directive bool, start_mark yaml_mark_t, handle *[]byte) bool { - // Check the initial '!' character. - if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) { - return false - } - if parser.buffer[parser.buffer_pos] != '!' { - yaml_parser_set_scanner_tag_error(parser, directive, - start_mark, "did not find expected '!'") - return false - } - - var s []byte - - // Copy the '!' character. - s = read(parser, s) - - // Copy all subsequent alphabetical and numerical characters. - if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) { - return false - } - for is_alpha(parser.buffer, parser.buffer_pos) { - s = read(parser, s) - if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) { - return false - } - } - - // Check if the trailing character is '!' and copy it. - if parser.buffer[parser.buffer_pos] == '!' { - s = read(parser, s) - } else { - // It's either the '!' tag or not really a tag handle. If it's a %TAG - // directive, it's an error. If it's a tag token, it must be a part of URI. - if directive && string(s) != "!" { - yaml_parser_set_scanner_tag_error(parser, directive, - start_mark, "did not find expected '!'") - return false - } - } - - *handle = s - return true -} - -// Scan a tag. -func yaml_parser_scan_tag_uri(parser *yaml_parser_t, directive bool, head []byte, start_mark yaml_mark_t, uri *[]byte) bool { - //size_t length = head ? strlen((char *)head) : 0 - var s []byte - hasTag := len(head) > 0 - - // Copy the head if needed. - // - // Note that we don't copy the leading '!' character. - if len(head) > 1 { - s = append(s, head[1:]...) - } - - // Scan the tag. - if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) { - return false - } - - // The set of characters that may appear in URI is as follows: - // - // '0'-'9', 'A'-'Z', 'a'-'z', '_', '-', ';', '/', '?', ':', '@', '&', - // '=', '+', '$', ',', '.', '!', '~', '*', '\'', '(', ')', '[', ']', - // '%'. - // [Go] Convert this into more reasonable logic. - for is_alpha(parser.buffer, parser.buffer_pos) || parser.buffer[parser.buffer_pos] == ';' || - parser.buffer[parser.buffer_pos] == '/' || parser.buffer[parser.buffer_pos] == '?' || - parser.buffer[parser.buffer_pos] == ':' || parser.buffer[parser.buffer_pos] == '@' || - parser.buffer[parser.buffer_pos] == '&' || parser.buffer[parser.buffer_pos] == '=' || - parser.buffer[parser.buffer_pos] == '+' || parser.buffer[parser.buffer_pos] == '$' || - parser.buffer[parser.buffer_pos] == ',' || parser.buffer[parser.buffer_pos] == '.' || - parser.buffer[parser.buffer_pos] == '!' || parser.buffer[parser.buffer_pos] == '~' || - parser.buffer[parser.buffer_pos] == '*' || parser.buffer[parser.buffer_pos] == '\'' || - parser.buffer[parser.buffer_pos] == '(' || parser.buffer[parser.buffer_pos] == ')' || - parser.buffer[parser.buffer_pos] == '[' || parser.buffer[parser.buffer_pos] == ']' || - parser.buffer[parser.buffer_pos] == '%' { - // Check if it is a URI-escape sequence. - if parser.buffer[parser.buffer_pos] == '%' { - if !yaml_parser_scan_uri_escapes(parser, directive, start_mark, &s) { - return false - } - } else { - s = read(parser, s) - } - if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) { - return false - } - hasTag = true - } - - if !hasTag { - yaml_parser_set_scanner_tag_error(parser, directive, - start_mark, "did not find expected tag URI") - return false - } - *uri = s - return true -} - -// Decode an URI-escape sequence corresponding to a single UTF-8 character. -func yaml_parser_scan_uri_escapes(parser *yaml_parser_t, directive bool, start_mark yaml_mark_t, s *[]byte) bool { - - // Decode the required number of characters. - w := 1024 - for w > 0 { - // Check for a URI-escaped octet. - if parser.unread < 3 && !yaml_parser_update_buffer(parser, 3) { - return false - } - - if !(parser.buffer[parser.buffer_pos] == '%' && - is_hex(parser.buffer, parser.buffer_pos+1) && - is_hex(parser.buffer, parser.buffer_pos+2)) { - return yaml_parser_set_scanner_tag_error(parser, directive, - start_mark, "did not find URI escaped octet") - } - - // Get the octet. - octet := byte((as_hex(parser.buffer, parser.buffer_pos+1) << 4) + as_hex(parser.buffer, parser.buffer_pos+2)) - - // If it is the leading octet, determine the length of the UTF-8 sequence. - if w == 1024 { - w = width(octet) - if w == 0 { - return yaml_parser_set_scanner_tag_error(parser, directive, - start_mark, "found an incorrect leading UTF-8 octet") - } - } else { - // Check if the trailing octet is correct. - if octet&0xC0 != 0x80 { - return yaml_parser_set_scanner_tag_error(parser, directive, - start_mark, "found an incorrect trailing UTF-8 octet") - } - } - - // Copy the octet and move the pointers. - *s = append(*s, octet) - skip(parser) - skip(parser) - skip(parser) - w-- - } - return true -} - -// Scan a block scalar. -func yaml_parser_scan_block_scalar(parser *yaml_parser_t, token *yaml_token_t, literal bool) bool { - // Eat the indicator '|' or '>'. - start_mark := parser.mark - skip(parser) - - // Scan the additional block scalar indicators. - if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) { - return false - } - - // Check for a chomping indicator. - var chomping, increment int - if parser.buffer[parser.buffer_pos] == '+' || parser.buffer[parser.buffer_pos] == '-' { - // Set the chomping method and eat the indicator. - if parser.buffer[parser.buffer_pos] == '+' { - chomping = +1 - } else { - chomping = -1 - } - skip(parser) - - // Check for an indentation indicator. - if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) { - return false - } - if is_digit(parser.buffer, parser.buffer_pos) { - // Check that the indentation is greater than 0. - if parser.buffer[parser.buffer_pos] == '0' { - yaml_parser_set_scanner_error(parser, "while scanning a block scalar", - start_mark, "found an indentation indicator equal to 0") - return false - } - - // Get the indentation level and eat the indicator. - increment = as_digit(parser.buffer, parser.buffer_pos) - skip(parser) - } - - } else if is_digit(parser.buffer, parser.buffer_pos) { - // Do the same as above, but in the opposite order. - - if parser.buffer[parser.buffer_pos] == '0' { - yaml_parser_set_scanner_error(parser, "while scanning a block scalar", - start_mark, "found an indentation indicator equal to 0") - return false - } - increment = as_digit(parser.buffer, parser.buffer_pos) - skip(parser) - - if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) { - return false - } - if parser.buffer[parser.buffer_pos] == '+' || parser.buffer[parser.buffer_pos] == '-' { - if parser.buffer[parser.buffer_pos] == '+' { - chomping = +1 - } else { - chomping = -1 - } - skip(parser) - } - } - - // Eat whitespaces and comments to the end of the line. - if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) { - return false - } - for is_blank(parser.buffer, parser.buffer_pos) { - skip(parser) - if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) { - return false - } - } - if parser.buffer[parser.buffer_pos] == '#' { - for !is_breakz(parser.buffer, parser.buffer_pos) { - skip(parser) - if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) { - return false - } - } - } - - // Check if we are at the end of the line. - if !is_breakz(parser.buffer, parser.buffer_pos) { - yaml_parser_set_scanner_error(parser, "while scanning a block scalar", - start_mark, "did not find expected comment or line break") - return false - } - - // Eat a line break. - if is_break(parser.buffer, parser.buffer_pos) { - if parser.unread < 2 && !yaml_parser_update_buffer(parser, 2) { - return false - } - skip_line(parser) - } - - end_mark := parser.mark - - // Set the indentation level if it was specified. - var indent int - if increment > 0 { - if parser.indent >= 0 { - indent = parser.indent + increment - } else { - indent = increment - } - } - - // Scan the leading line breaks and determine the indentation level if needed. - var s, leading_break, trailing_breaks []byte - if !yaml_parser_scan_block_scalar_breaks(parser, &indent, &trailing_breaks, start_mark, &end_mark) { - return false - } - - // Scan the block scalar content. - if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) { - return false - } - var leading_blank, trailing_blank bool - for parser.mark.column == indent && !is_z(parser.buffer, parser.buffer_pos) { - // We are at the beginning of a non-empty line. - - // Is it a trailing whitespace? - trailing_blank = is_blank(parser.buffer, parser.buffer_pos) - - // Check if we need to fold the leading line break. - if !literal && !leading_blank && !trailing_blank && len(leading_break) > 0 && leading_break[0] == '\n' { - // Do we need to join the lines by space? - if len(trailing_breaks) == 0 { - s = append(s, ' ') - } - } else { - s = append(s, leading_break...) - } - leading_break = leading_break[:0] - - // Append the remaining line breaks. - s = append(s, trailing_breaks...) - trailing_breaks = trailing_breaks[:0] - - // Is it a leading whitespace? - leading_blank = is_blank(parser.buffer, parser.buffer_pos) - - // Consume the current line. - for !is_breakz(parser.buffer, parser.buffer_pos) { - s = read(parser, s) - if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) { - return false - } - } - - // Consume the line break. - if parser.unread < 2 && !yaml_parser_update_buffer(parser, 2) { - return false - } - - leading_break = read_line(parser, leading_break) - - // Eat the following indentation spaces and line breaks. - if !yaml_parser_scan_block_scalar_breaks(parser, &indent, &trailing_breaks, start_mark, &end_mark) { - return false - } - } - - // Chomp the tail. - if chomping != -1 { - s = append(s, leading_break...) - } - if chomping == 1 { - s = append(s, trailing_breaks...) - } - - // Create a token. - *token = yaml_token_t{ - typ: yaml_SCALAR_TOKEN, - start_mark: start_mark, - end_mark: end_mark, - value: s, - style: yaml_LITERAL_SCALAR_STYLE, - } - if !literal { - token.style = yaml_FOLDED_SCALAR_STYLE - } - return true -} - -// Scan indentation spaces and line breaks for a block scalar. Determine the -// indentation level if needed. -func yaml_parser_scan_block_scalar_breaks(parser *yaml_parser_t, indent *int, breaks *[]byte, start_mark yaml_mark_t, end_mark *yaml_mark_t) bool { - *end_mark = parser.mark - - // Eat the indentation spaces and line breaks. - max_indent := 0 - for { - // Eat the indentation spaces. - if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) { - return false - } - for (*indent == 0 || parser.mark.column < *indent) && is_space(parser.buffer, parser.buffer_pos) { - skip(parser) - if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) { - return false - } - } - if parser.mark.column > max_indent { - max_indent = parser.mark.column - } - - // Check for a tab character messing the indentation. - if (*indent == 0 || parser.mark.column < *indent) && is_tab(parser.buffer, parser.buffer_pos) { - return yaml_parser_set_scanner_error(parser, "while scanning a block scalar", - start_mark, "found a tab character where an indentation space is expected") - } - - // Have we found a non-empty line? - if !is_break(parser.buffer, parser.buffer_pos) { - break - } - - // Consume the line break. - if parser.unread < 2 && !yaml_parser_update_buffer(parser, 2) { - return false - } - // [Go] Should really be returning breaks instead. - *breaks = read_line(parser, *breaks) - *end_mark = parser.mark - } - - // Determine the indentation level if needed. - if *indent == 0 { - *indent = max_indent - if *indent < parser.indent+1 { - *indent = parser.indent + 1 - } - if *indent < 1 { - *indent = 1 - } - } - return true -} - -// Scan a quoted scalar. -func yaml_parser_scan_flow_scalar(parser *yaml_parser_t, token *yaml_token_t, single bool) bool { - // Eat the left quote. - start_mark := parser.mark - skip(parser) - - // Consume the content of the quoted scalar. - var s, leading_break, trailing_breaks, whitespaces []byte - for { - // Check that there are no document indicators at the beginning of the line. - if parser.unread < 4 && !yaml_parser_update_buffer(parser, 4) { - return false - } - - if parser.mark.column == 0 && - ((parser.buffer[parser.buffer_pos+0] == '-' && - parser.buffer[parser.buffer_pos+1] == '-' && - parser.buffer[parser.buffer_pos+2] == '-') || - (parser.buffer[parser.buffer_pos+0] == '.' && - parser.buffer[parser.buffer_pos+1] == '.' && - parser.buffer[parser.buffer_pos+2] == '.')) && - is_blankz(parser.buffer, parser.buffer_pos+3) { - yaml_parser_set_scanner_error(parser, "while scanning a quoted scalar", - start_mark, "found unexpected document indicator") - return false - } - - // Check for EOF. - if is_z(parser.buffer, parser.buffer_pos) { - yaml_parser_set_scanner_error(parser, "while scanning a quoted scalar", - start_mark, "found unexpected end of stream") - return false - } - - // Consume non-blank characters. - leading_blanks := false - for !is_blankz(parser.buffer, parser.buffer_pos) { - if single && parser.buffer[parser.buffer_pos] == '\'' && parser.buffer[parser.buffer_pos+1] == '\'' { - // Is is an escaped single quote. - s = append(s, '\'') - skip(parser) - skip(parser) - - } else if single && parser.buffer[parser.buffer_pos] == '\'' { - // It is a right single quote. - break - } else if !single && parser.buffer[parser.buffer_pos] == '"' { - // It is a right double quote. - break - - } else if !single && parser.buffer[parser.buffer_pos] == '\\' && is_break(parser.buffer, parser.buffer_pos+1) { - // It is an escaped line break. - if parser.unread < 3 && !yaml_parser_update_buffer(parser, 3) { - return false - } - skip(parser) - skip_line(parser) - leading_blanks = true - break - - } else if !single && parser.buffer[parser.buffer_pos] == '\\' { - // It is an escape sequence. - code_length := 0 - - // Check the escape character. - switch parser.buffer[parser.buffer_pos+1] { - case '0': - s = append(s, 0) - case 'a': - s = append(s, '\x07') - case 'b': - s = append(s, '\x08') - case 't', '\t': - s = append(s, '\x09') - case 'n': - s = append(s, '\x0A') - case 'v': - s = append(s, '\x0B') - case 'f': - s = append(s, '\x0C') - case 'r': - s = append(s, '\x0D') - case 'e': - s = append(s, '\x1B') - case ' ': - s = append(s, '\x20') - case '"': - s = append(s, '"') - case '\'': - s = append(s, '\'') - case '\\': - s = append(s, '\\') - case 'N': // NEL (#x85) - s = append(s, '\xC2') - s = append(s, '\x85') - case '_': // #xA0 - s = append(s, '\xC2') - s = append(s, '\xA0') - case 'L': // LS (#x2028) - s = append(s, '\xE2') - s = append(s, '\x80') - s = append(s, '\xA8') - case 'P': // PS (#x2029) - s = append(s, '\xE2') - s = append(s, '\x80') - s = append(s, '\xA9') - case 'x': - code_length = 2 - case 'u': - code_length = 4 - case 'U': - code_length = 8 - default: - yaml_parser_set_scanner_error(parser, "while parsing a quoted scalar", - start_mark, "found unknown escape character") - return false - } - - skip(parser) - skip(parser) - - // Consume an arbitrary escape code. - if code_length > 0 { - var value int - - // Scan the character value. - if parser.unread < code_length && !yaml_parser_update_buffer(parser, code_length) { - return false - } - for k := 0; k < code_length; k++ { - if !is_hex(parser.buffer, parser.buffer_pos+k) { - yaml_parser_set_scanner_error(parser, "while parsing a quoted scalar", - start_mark, "did not find expected hexdecimal number") - return false - } - value = (value << 4) + as_hex(parser.buffer, parser.buffer_pos+k) - } - - // Check the value and write the character. - if (value >= 0xD800 && value <= 0xDFFF) || value > 0x10FFFF { - yaml_parser_set_scanner_error(parser, "while parsing a quoted scalar", - start_mark, "found invalid Unicode character escape code") - return false - } - if value <= 0x7F { - s = append(s, byte(value)) - } else if value <= 0x7FF { - s = append(s, byte(0xC0+(value>>6))) - s = append(s, byte(0x80+(value&0x3F))) - } else if value <= 0xFFFF { - s = append(s, byte(0xE0+(value>>12))) - s = append(s, byte(0x80+((value>>6)&0x3F))) - s = append(s, byte(0x80+(value&0x3F))) - } else { - s = append(s, byte(0xF0+(value>>18))) - s = append(s, byte(0x80+((value>>12)&0x3F))) - s = append(s, byte(0x80+((value>>6)&0x3F))) - s = append(s, byte(0x80+(value&0x3F))) - } - - // Advance the pointer. - for k := 0; k < code_length; k++ { - skip(parser) - } - } - } else { - // It is a non-escaped non-blank character. - s = read(parser, s) - } - if parser.unread < 2 && !yaml_parser_update_buffer(parser, 2) { - return false - } - } - - if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) { - return false - } - - // Check if we are at the end of the scalar. - if single { - if parser.buffer[parser.buffer_pos] == '\'' { - break - } - } else { - if parser.buffer[parser.buffer_pos] == '"' { - break - } - } - - // Consume blank characters. - for is_blank(parser.buffer, parser.buffer_pos) || is_break(parser.buffer, parser.buffer_pos) { - if is_blank(parser.buffer, parser.buffer_pos) { - // Consume a space or a tab character. - if !leading_blanks { - whitespaces = read(parser, whitespaces) - } else { - skip(parser) - } - } else { - if parser.unread < 2 && !yaml_parser_update_buffer(parser, 2) { - return false - } - - // Check if it is a first line break. - if !leading_blanks { - whitespaces = whitespaces[:0] - leading_break = read_line(parser, leading_break) - leading_blanks = true - } else { - trailing_breaks = read_line(parser, trailing_breaks) - } - } - if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) { - return false - } - } - - // Join the whitespaces or fold line breaks. - if leading_blanks { - // Do we need to fold line breaks? - if len(leading_break) > 0 && leading_break[0] == '\n' { - if len(trailing_breaks) == 0 { - s = append(s, ' ') - } else { - s = append(s, trailing_breaks...) - } - } else { - s = append(s, leading_break...) - s = append(s, trailing_breaks...) - } - trailing_breaks = trailing_breaks[:0] - leading_break = leading_break[:0] - } else { - s = append(s, whitespaces...) - whitespaces = whitespaces[:0] - } - } - - // Eat the right quote. - skip(parser) - end_mark := parser.mark - - // Create a token. - *token = yaml_token_t{ - typ: yaml_SCALAR_TOKEN, - start_mark: start_mark, - end_mark: end_mark, - value: s, - style: yaml_SINGLE_QUOTED_SCALAR_STYLE, - } - if !single { - token.style = yaml_DOUBLE_QUOTED_SCALAR_STYLE - } - return true -} - -// Scan a plain scalar. -func yaml_parser_scan_plain_scalar(parser *yaml_parser_t, token *yaml_token_t) bool { - - var s, leading_break, trailing_breaks, whitespaces []byte - var leading_blanks bool - var indent = parser.indent + 1 - - start_mark := parser.mark - end_mark := parser.mark - - // Consume the content of the plain scalar. - for { - // Check for a document indicator. - if parser.unread < 4 && !yaml_parser_update_buffer(parser, 4) { - return false - } - if parser.mark.column == 0 && - ((parser.buffer[parser.buffer_pos+0] == '-' && - parser.buffer[parser.buffer_pos+1] == '-' && - parser.buffer[parser.buffer_pos+2] == '-') || - (parser.buffer[parser.buffer_pos+0] == '.' && - parser.buffer[parser.buffer_pos+1] == '.' && - parser.buffer[parser.buffer_pos+2] == '.')) && - is_blankz(parser.buffer, parser.buffer_pos+3) { - break - } - - // Check for a comment. - if parser.buffer[parser.buffer_pos] == '#' { - break - } - - // Consume non-blank characters. - for !is_blankz(parser.buffer, parser.buffer_pos) { - - // Check for indicators that may end a plain scalar. - if (parser.buffer[parser.buffer_pos] == ':' && is_blankz(parser.buffer, parser.buffer_pos+1)) || - (parser.flow_level > 0 && - (parser.buffer[parser.buffer_pos] == ',' || - parser.buffer[parser.buffer_pos] == '?' || parser.buffer[parser.buffer_pos] == '[' || - parser.buffer[parser.buffer_pos] == ']' || parser.buffer[parser.buffer_pos] == '{' || - parser.buffer[parser.buffer_pos] == '}')) { - break - } - - // Check if we need to join whitespaces and breaks. - if leading_blanks || len(whitespaces) > 0 { - if leading_blanks { - // Do we need to fold line breaks? - if leading_break[0] == '\n' { - if len(trailing_breaks) == 0 { - s = append(s, ' ') - } else { - s = append(s, trailing_breaks...) - } - } else { - s = append(s, leading_break...) - s = append(s, trailing_breaks...) - } - trailing_breaks = trailing_breaks[:0] - leading_break = leading_break[:0] - leading_blanks = false - } else { - s = append(s, whitespaces...) - whitespaces = whitespaces[:0] - } - } - - // Copy the character. - s = read(parser, s) - - end_mark = parser.mark - if parser.unread < 2 && !yaml_parser_update_buffer(parser, 2) { - return false - } - } - - // Is it the end? - if !(is_blank(parser.buffer, parser.buffer_pos) || is_break(parser.buffer, parser.buffer_pos)) { - break - } - - // Consume blank characters. - if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) { - return false - } - - for is_blank(parser.buffer, parser.buffer_pos) || is_break(parser.buffer, parser.buffer_pos) { - if is_blank(parser.buffer, parser.buffer_pos) { - - // Check for tab characters that abuse indentation. - if leading_blanks && parser.mark.column < indent && is_tab(parser.buffer, parser.buffer_pos) { - yaml_parser_set_scanner_error(parser, "while scanning a plain scalar", - start_mark, "found a tab character that violates indentation") - return false - } - - // Consume a space or a tab character. - if !leading_blanks { - whitespaces = read(parser, whitespaces) - } else { - skip(parser) - } - } else { - if parser.unread < 2 && !yaml_parser_update_buffer(parser, 2) { - return false - } - - // Check if it is a first line break. - if !leading_blanks { - whitespaces = whitespaces[:0] - leading_break = read_line(parser, leading_break) - leading_blanks = true - } else { - trailing_breaks = read_line(parser, trailing_breaks) - } - } - if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) { - return false - } - } - - // Check indentation level. - if parser.flow_level == 0 && parser.mark.column < indent { - break - } - } - - // Create a token. - *token = yaml_token_t{ - typ: yaml_SCALAR_TOKEN, - start_mark: start_mark, - end_mark: end_mark, - value: s, - style: yaml_PLAIN_SCALAR_STYLE, - } - - // Note that we change the 'simple_key_allowed' flag. - if leading_blanks { - parser.simple_key_allowed = true - } - return true -} diff --git a/vendor/gopkg.in/yaml.v2/sorter.go b/vendor/gopkg.in/yaml.v2/sorter.go deleted file mode 100644 index 4c45e66..0000000 --- a/vendor/gopkg.in/yaml.v2/sorter.go +++ /dev/null @@ -1,113 +0,0 @@ -package yaml - -import ( - "reflect" - "unicode" -) - -type keyList []reflect.Value - -func (l keyList) Len() int { return len(l) } -func (l keyList) Swap(i, j int) { l[i], l[j] = l[j], l[i] } -func (l keyList) Less(i, j int) bool { - a := l[i] - b := l[j] - ak := a.Kind() - bk := b.Kind() - for (ak == reflect.Interface || ak == reflect.Ptr) && !a.IsNil() { - a = a.Elem() - ak = a.Kind() - } - for (bk == reflect.Interface || bk == reflect.Ptr) && !b.IsNil() { - b = b.Elem() - bk = b.Kind() - } - af, aok := keyFloat(a) - bf, bok := keyFloat(b) - if aok && bok { - if af != bf { - return af < bf - } - if ak != bk { - return ak < bk - } - return numLess(a, b) - } - if ak != reflect.String || bk != reflect.String { - return ak < bk - } - ar, br := []rune(a.String()), []rune(b.String()) - for i := 0; i < len(ar) && i < len(br); i++ { - if ar[i] == br[i] { - continue - } - al := unicode.IsLetter(ar[i]) - bl := unicode.IsLetter(br[i]) - if al && bl { - return ar[i] < br[i] - } - if al || bl { - return bl - } - var ai, bi int - var an, bn int64 - if ar[i] == '0' || br[i] == '0' { - for j := i-1; j >= 0 && unicode.IsDigit(ar[j]); j-- { - if ar[j] != '0' { - an = 1 - bn = 1 - break - } - } - } - for ai = i; ai < len(ar) && unicode.IsDigit(ar[ai]); ai++ { - an = an*10 + int64(ar[ai]-'0') - } - for bi = i; bi < len(br) && unicode.IsDigit(br[bi]); bi++ { - bn = bn*10 + int64(br[bi]-'0') - } - if an != bn { - return an < bn - } - if ai != bi { - return ai < bi - } - return ar[i] < br[i] - } - return len(ar) < len(br) -} - -// keyFloat returns a float value for v if it is a number/bool -// and whether it is a number/bool or not. -func keyFloat(v reflect.Value) (f float64, ok bool) { - switch v.Kind() { - case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64: - return float64(v.Int()), true - case reflect.Float32, reflect.Float64: - return v.Float(), true - case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr: - return float64(v.Uint()), true - case reflect.Bool: - if v.Bool() { - return 1, true - } - return 0, true - } - return 0, false -} - -// numLess returns whether a < b. -// a and b must necessarily have the same kind. -func numLess(a, b reflect.Value) bool { - switch a.Kind() { - case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64: - return a.Int() < b.Int() - case reflect.Float32, reflect.Float64: - return a.Float() < b.Float() - case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr: - return a.Uint() < b.Uint() - case reflect.Bool: - return !a.Bool() && b.Bool() - } - panic("not a number") -} diff --git a/vendor/gopkg.in/yaml.v2/writerc.go b/vendor/gopkg.in/yaml.v2/writerc.go deleted file mode 100644 index a2dde60..0000000 --- a/vendor/gopkg.in/yaml.v2/writerc.go +++ /dev/null @@ -1,26 +0,0 @@ -package yaml - -// Set the writer error and return false. -func yaml_emitter_set_writer_error(emitter *yaml_emitter_t, problem string) bool { - emitter.error = yaml_WRITER_ERROR - emitter.problem = problem - return false -} - -// Flush the output buffer. -func yaml_emitter_flush(emitter *yaml_emitter_t) bool { - if emitter.write_handler == nil { - panic("write handler not set") - } - - // Check if the buffer is empty. - if emitter.buffer_pos == 0 { - return true - } - - if err := emitter.write_handler(emitter, emitter.buffer[:emitter.buffer_pos]); err != nil { - return yaml_emitter_set_writer_error(emitter, "write error: "+err.Error()) - } - emitter.buffer_pos = 0 - return true -} diff --git a/vendor/gopkg.in/yaml.v2/yaml.go b/vendor/gopkg.in/yaml.v2/yaml.go deleted file mode 100644 index 3081388..0000000 --- a/vendor/gopkg.in/yaml.v2/yaml.go +++ /dev/null @@ -1,478 +0,0 @@ -// Package yaml implements YAML support for the Go language. -// -// Source code and other details for the project are available at GitHub: -// -// https://github.com/go-yaml/yaml -// -package yaml - -import ( - "errors" - "fmt" - "io" - "reflect" - "strings" - "sync" -) - -// MapSlice encodes and decodes as a YAML map. -// The order of keys is preserved when encoding and decoding. -type MapSlice []MapItem - -// MapItem is an item in a MapSlice. -type MapItem struct { - Key, Value interface{} -} - -// The Unmarshaler interface may be implemented by types to customize their -// behavior when being unmarshaled from a YAML document. The UnmarshalYAML -// method receives a function that may be called to unmarshal the original -// YAML value into a field or variable. It is safe to call the unmarshal -// function parameter more than once if necessary. -type Unmarshaler interface { - UnmarshalYAML(unmarshal func(interface{}) error) error -} - -// The Marshaler interface may be implemented by types to customize their -// behavior when being marshaled into a YAML document. The returned value -// is marshaled in place of the original value implementing Marshaler. -// -// If an error is returned by MarshalYAML, the marshaling procedure stops -// and returns with the provided error. -type Marshaler interface { - MarshalYAML() (interface{}, error) -} - -// Unmarshal decodes the first document found within the in byte slice -// and assigns decoded values into the out value. -// -// Maps and pointers (to a struct, string, int, etc) are accepted as out -// values. If an internal pointer within a struct is not initialized, -// the yaml package will initialize it if necessary for unmarshalling -// the provided data. The out parameter must not be nil. -// -// The type of the decoded values should be compatible with the respective -// values in out. If one or more values cannot be decoded due to a type -// mismatches, decoding continues partially until the end of the YAML -// content, and a *yaml.TypeError is returned with details for all -// missed values. -// -// Struct fields are only unmarshalled if they are exported (have an -// upper case first letter), and are unmarshalled using the field name -// lowercased as the default key. Custom keys may be defined via the -// "yaml" name in the field tag: the content preceding the first comma -// is used as the key, and the following comma-separated options are -// used to tweak the marshalling process (see Marshal). -// Conflicting names result in a runtime error. -// -// For example: -// -// type T struct { -// F int `yaml:"a,omitempty"` -// B int -// } -// var t T -// yaml.Unmarshal([]byte("a: 1\nb: 2"), &t) -// -// See the documentation of Marshal for the format of tags and a list of -// supported tag options. -// -func Unmarshal(in []byte, out interface{}) (err error) { - return unmarshal(in, out, false) -} - -// UnmarshalStrict is like Unmarshal except that any fields that are found -// in the data that do not have corresponding struct members, or mapping -// keys that are duplicates, will result in -// an error. -func UnmarshalStrict(in []byte, out interface{}) (err error) { - return unmarshal(in, out, true) -} - -// A Decoder reads and decodes YAML values from an input stream. -type Decoder struct { - strict bool - parser *parser -} - -// NewDecoder returns a new decoder that reads from r. -// -// The decoder introduces its own buffering and may read -// data from r beyond the YAML values requested. -func NewDecoder(r io.Reader) *Decoder { - return &Decoder{ - parser: newParserFromReader(r), - } -} - -// SetStrict sets whether strict decoding behaviour is enabled when -// decoding items in the data (see UnmarshalStrict). By default, decoding is not strict. -func (dec *Decoder) SetStrict(strict bool) { - dec.strict = strict -} - -// Decode reads the next YAML-encoded value from its input -// and stores it in the value pointed to by v. -// -// See the documentation for Unmarshal for details about the -// conversion of YAML into a Go value. -func (dec *Decoder) Decode(v interface{}) (err error) { - d := newDecoder(dec.strict) - defer handleErr(&err) - node := dec.parser.parse() - if node == nil { - return io.EOF - } - out := reflect.ValueOf(v) - if out.Kind() == reflect.Ptr && !out.IsNil() { - out = out.Elem() - } - d.unmarshal(node, out) - if len(d.terrors) > 0 { - return &TypeError{d.terrors} - } - return nil -} - -func unmarshal(in []byte, out interface{}, strict bool) (err error) { - defer handleErr(&err) - d := newDecoder(strict) - p := newParser(in) - defer p.destroy() - node := p.parse() - if node != nil { - v := reflect.ValueOf(out) - if v.Kind() == reflect.Ptr && !v.IsNil() { - v = v.Elem() - } - d.unmarshal(node, v) - } - if len(d.terrors) > 0 { - return &TypeError{d.terrors} - } - return nil -} - -// Marshal serializes the value provided into a YAML document. The structure -// of the generated document will reflect the structure of the value itself. -// Maps and pointers (to struct, string, int, etc) are accepted as the in value. -// -// Struct fields are only marshalled if they are exported (have an upper case -// first letter), and are marshalled using the field name lowercased as the -// default key. Custom keys may be defined via the "yaml" name in the field -// tag: the content preceding the first comma is used as the key, and the -// following comma-separated options are used to tweak the marshalling process. -// Conflicting names result in a runtime error. -// -// The field tag format accepted is: -// -// `(...) yaml:"[][,[,]]" (...)` -// -// The following flags are currently supported: -// -// omitempty Only include the field if it's not set to the zero -// value for the type or to empty slices or maps. -// Zero valued structs will be omitted if all their public -// fields are zero, unless they implement an IsZero -// method (see the IsZeroer interface type), in which -// case the field will be excluded if IsZero returns true. -// -// flow Marshal using a flow style (useful for structs, -// sequences and maps). -// -// inline Inline the field, which must be a struct or a map, -// causing all of its fields or keys to be processed as if -// they were part of the outer struct. For maps, keys must -// not conflict with the yaml keys of other struct fields. -// -// In addition, if the key is "-", the field is ignored. -// -// For example: -// -// type T struct { -// F int `yaml:"a,omitempty"` -// B int -// } -// yaml.Marshal(&T{B: 2}) // Returns "b: 2\n" -// yaml.Marshal(&T{F: 1}} // Returns "a: 1\nb: 0\n" -// -func Marshal(in interface{}) (out []byte, err error) { - defer handleErr(&err) - e := newEncoder() - defer e.destroy() - e.marshalDoc("", reflect.ValueOf(in)) - e.finish() - out = e.out - return -} - -// An Encoder writes YAML values to an output stream. -type Encoder struct { - encoder *encoder -} - -// NewEncoder returns a new encoder that writes to w. -// The Encoder should be closed after use to flush all data -// to w. -func NewEncoder(w io.Writer) *Encoder { - return &Encoder{ - encoder: newEncoderWithWriter(w), - } -} - -// Encode writes the YAML encoding of v to the stream. -// If multiple items are encoded to the stream, the -// second and subsequent document will be preceded -// with a "---" document separator, but the first will not. -// -// See the documentation for Marshal for details about the conversion of Go -// values to YAML. -func (e *Encoder) Encode(v interface{}) (err error) { - defer handleErr(&err) - e.encoder.marshalDoc("", reflect.ValueOf(v)) - return nil -} - -// Close closes the encoder by writing any remaining data. -// It does not write a stream terminating string "...". -func (e *Encoder) Close() (err error) { - defer handleErr(&err) - e.encoder.finish() - return nil -} - -func handleErr(err *error) { - if v := recover(); v != nil { - if e, ok := v.(yamlError); ok { - *err = e.err - } else { - panic(v) - } - } -} - -type yamlError struct { - err error -} - -func fail(err error) { - panic(yamlError{err}) -} - -func failf(format string, args ...interface{}) { - panic(yamlError{fmt.Errorf("yaml: "+format, args...)}) -} - -// A TypeError is returned by Unmarshal when one or more fields in -// the YAML document cannot be properly decoded into the requested -// types. When this error is returned, the value is still -// unmarshaled partially. -type TypeError struct { - Errors []string -} - -func (e *TypeError) Error() string { - return fmt.Sprintf("yaml: unmarshal errors:\n %s", strings.Join(e.Errors, "\n ")) -} - -// -------------------------------------------------------------------------- -// Maintain a mapping of keys to structure field indexes - -// The code in this section was copied from mgo/bson. - -// structInfo holds details for the serialization of fields of -// a given struct. -type structInfo struct { - FieldsMap map[string]fieldInfo - FieldsList []fieldInfo - - // InlineMap is the number of the field in the struct that - // contains an ,inline map, or -1 if there's none. - InlineMap int -} - -type fieldInfo struct { - Key string - Num int - OmitEmpty bool - Flow bool - // Id holds the unique field identifier, so we can cheaply - // check for field duplicates without maintaining an extra map. - Id int - - // Inline holds the field index if the field is part of an inlined struct. - Inline []int -} - -var structMap = make(map[reflect.Type]*structInfo) -var fieldMapMutex sync.RWMutex - -func getStructInfo(st reflect.Type) (*structInfo, error) { - fieldMapMutex.RLock() - sinfo, found := structMap[st] - fieldMapMutex.RUnlock() - if found { - return sinfo, nil - } - - n := st.NumField() - fieldsMap := make(map[string]fieldInfo) - fieldsList := make([]fieldInfo, 0, n) - inlineMap := -1 - for i := 0; i != n; i++ { - field := st.Field(i) - if field.PkgPath != "" && !field.Anonymous { - continue // Private field - } - - info := fieldInfo{Num: i} - - tag := field.Tag.Get("yaml") - if tag == "" && strings.Index(string(field.Tag), ":") < 0 { - tag = string(field.Tag) - } - if tag == "-" { - continue - } - - inline := false - fields := strings.Split(tag, ",") - if len(fields) > 1 { - for _, flag := range fields[1:] { - switch flag { - case "omitempty": - info.OmitEmpty = true - case "flow": - info.Flow = true - case "inline": - inline = true - default: - return nil, errors.New(fmt.Sprintf("Unsupported flag %q in tag %q of type %s", flag, tag, st)) - } - } - tag = fields[0] - } - - if inline { - switch field.Type.Kind() { - case reflect.Map: - if inlineMap >= 0 { - return nil, errors.New("Multiple ,inline maps in struct " + st.String()) - } - if field.Type.Key() != reflect.TypeOf("") { - return nil, errors.New("Option ,inline needs a map with string keys in struct " + st.String()) - } - inlineMap = info.Num - case reflect.Struct: - sinfo, err := getStructInfo(field.Type) - if err != nil { - return nil, err - } - for _, finfo := range sinfo.FieldsList { - if _, found := fieldsMap[finfo.Key]; found { - msg := "Duplicated key '" + finfo.Key + "' in struct " + st.String() - return nil, errors.New(msg) - } - if finfo.Inline == nil { - finfo.Inline = []int{i, finfo.Num} - } else { - finfo.Inline = append([]int{i}, finfo.Inline...) - } - finfo.Id = len(fieldsList) - fieldsMap[finfo.Key] = finfo - fieldsList = append(fieldsList, finfo) - } - default: - //return nil, errors.New("Option ,inline needs a struct value or map field") - return nil, errors.New("Option ,inline needs a struct value field") - } - continue - } - - if tag != "" { - info.Key = tag - } else { - info.Key = strings.ToLower(field.Name) - } - - if _, found = fieldsMap[info.Key]; found { - msg := "Duplicated key '" + info.Key + "' in struct " + st.String() - return nil, errors.New(msg) - } - - info.Id = len(fieldsList) - fieldsList = append(fieldsList, info) - fieldsMap[info.Key] = info - } - - sinfo = &structInfo{ - FieldsMap: fieldsMap, - FieldsList: fieldsList, - InlineMap: inlineMap, - } - - fieldMapMutex.Lock() - structMap[st] = sinfo - fieldMapMutex.Unlock() - return sinfo, nil -} - -// IsZeroer is used to check whether an object is zero to -// determine whether it should be omitted when marshaling -// with the omitempty flag. One notable implementation -// is time.Time. -type IsZeroer interface { - IsZero() bool -} - -func isZero(v reflect.Value) bool { - kind := v.Kind() - if z, ok := v.Interface().(IsZeroer); ok { - if (kind == reflect.Ptr || kind == reflect.Interface) && v.IsNil() { - return true - } - return z.IsZero() - } - switch kind { - case reflect.String: - return len(v.String()) == 0 - case reflect.Interface, reflect.Ptr: - return v.IsNil() - case reflect.Slice: - return v.Len() == 0 - case reflect.Map: - return v.Len() == 0 - case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64: - return v.Int() == 0 - case reflect.Float32, reflect.Float64: - return v.Float() == 0 - case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr: - return v.Uint() == 0 - case reflect.Bool: - return !v.Bool() - case reflect.Struct: - vt := v.Type() - for i := v.NumField() - 1; i >= 0; i-- { - if vt.Field(i).PkgPath != "" { - continue // Private field - } - if !isZero(v.Field(i)) { - return false - } - } - return true - } - return false -} - -// FutureLineWrap globally disables line wrapping when encoding long strings. -// This is a temporary and thus deprecated method introduced to faciliate -// migration towards v3, which offers more control of line lengths on -// individual encodings, and has a default matching the behavior introduced -// by this function. -// -// The default formatting of v2 was erroneously changed in v2.3.0 and reverted -// in v2.4.0, at which point this function was introduced to help migration. -func FutureLineWrap() { - disableLineWrapping = true -} diff --git a/vendor/gopkg.in/yaml.v2/yamlh.go b/vendor/gopkg.in/yaml.v2/yamlh.go deleted file mode 100644 index f6a9c8e..0000000 --- a/vendor/gopkg.in/yaml.v2/yamlh.go +++ /dev/null @@ -1,739 +0,0 @@ -package yaml - -import ( - "fmt" - "io" -) - -// The version directive data. -type yaml_version_directive_t struct { - major int8 // The major version number. - minor int8 // The minor version number. -} - -// The tag directive data. -type yaml_tag_directive_t struct { - handle []byte // The tag handle. - prefix []byte // The tag prefix. -} - -type yaml_encoding_t int - -// The stream encoding. -const ( - // Let the parser choose the encoding. - yaml_ANY_ENCODING yaml_encoding_t = iota - - yaml_UTF8_ENCODING // The default UTF-8 encoding. - yaml_UTF16LE_ENCODING // The UTF-16-LE encoding with BOM. - yaml_UTF16BE_ENCODING // The UTF-16-BE encoding with BOM. -) - -type yaml_break_t int - -// Line break types. -const ( - // Let the parser choose the break type. - yaml_ANY_BREAK yaml_break_t = iota - - yaml_CR_BREAK // Use CR for line breaks (Mac style). - yaml_LN_BREAK // Use LN for line breaks (Unix style). - yaml_CRLN_BREAK // Use CR LN for line breaks (DOS style). -) - -type yaml_error_type_t int - -// Many bad things could happen with the parser and emitter. -const ( - // No error is produced. - yaml_NO_ERROR yaml_error_type_t = iota - - yaml_MEMORY_ERROR // Cannot allocate or reallocate a block of memory. - yaml_READER_ERROR // Cannot read or decode the input stream. - yaml_SCANNER_ERROR // Cannot scan the input stream. - yaml_PARSER_ERROR // Cannot parse the input stream. - yaml_COMPOSER_ERROR // Cannot compose a YAML document. - yaml_WRITER_ERROR // Cannot write to the output stream. - yaml_EMITTER_ERROR // Cannot emit a YAML stream. -) - -// The pointer position. -type yaml_mark_t struct { - index int // The position index. - line int // The position line. - column int // The position column. -} - -// Node Styles - -type yaml_style_t int8 - -type yaml_scalar_style_t yaml_style_t - -// Scalar styles. -const ( - // Let the emitter choose the style. - yaml_ANY_SCALAR_STYLE yaml_scalar_style_t = iota - - yaml_PLAIN_SCALAR_STYLE // The plain scalar style. - yaml_SINGLE_QUOTED_SCALAR_STYLE // The single-quoted scalar style. - yaml_DOUBLE_QUOTED_SCALAR_STYLE // The double-quoted scalar style. - yaml_LITERAL_SCALAR_STYLE // The literal scalar style. - yaml_FOLDED_SCALAR_STYLE // The folded scalar style. -) - -type yaml_sequence_style_t yaml_style_t - -// Sequence styles. -const ( - // Let the emitter choose the style. - yaml_ANY_SEQUENCE_STYLE yaml_sequence_style_t = iota - - yaml_BLOCK_SEQUENCE_STYLE // The block sequence style. - yaml_FLOW_SEQUENCE_STYLE // The flow sequence style. -) - -type yaml_mapping_style_t yaml_style_t - -// Mapping styles. -const ( - // Let the emitter choose the style. - yaml_ANY_MAPPING_STYLE yaml_mapping_style_t = iota - - yaml_BLOCK_MAPPING_STYLE // The block mapping style. - yaml_FLOW_MAPPING_STYLE // The flow mapping style. -) - -// Tokens - -type yaml_token_type_t int - -// Token types. -const ( - // An empty token. - yaml_NO_TOKEN yaml_token_type_t = iota - - yaml_STREAM_START_TOKEN // A STREAM-START token. - yaml_STREAM_END_TOKEN // A STREAM-END token. - - yaml_VERSION_DIRECTIVE_TOKEN // A VERSION-DIRECTIVE token. - yaml_TAG_DIRECTIVE_TOKEN // A TAG-DIRECTIVE token. - yaml_DOCUMENT_START_TOKEN // A DOCUMENT-START token. - yaml_DOCUMENT_END_TOKEN // A DOCUMENT-END token. - - yaml_BLOCK_SEQUENCE_START_TOKEN // A BLOCK-SEQUENCE-START token. - yaml_BLOCK_MAPPING_START_TOKEN // A BLOCK-SEQUENCE-END token. - yaml_BLOCK_END_TOKEN // A BLOCK-END token. - - yaml_FLOW_SEQUENCE_START_TOKEN // A FLOW-SEQUENCE-START token. - yaml_FLOW_SEQUENCE_END_TOKEN // A FLOW-SEQUENCE-END token. - yaml_FLOW_MAPPING_START_TOKEN // A FLOW-MAPPING-START token. - yaml_FLOW_MAPPING_END_TOKEN // A FLOW-MAPPING-END token. - - yaml_BLOCK_ENTRY_TOKEN // A BLOCK-ENTRY token. - yaml_FLOW_ENTRY_TOKEN // A FLOW-ENTRY token. - yaml_KEY_TOKEN // A KEY token. - yaml_VALUE_TOKEN // A VALUE token. - - yaml_ALIAS_TOKEN // An ALIAS token. - yaml_ANCHOR_TOKEN // An ANCHOR token. - yaml_TAG_TOKEN // A TAG token. - yaml_SCALAR_TOKEN // A SCALAR token. -) - -func (tt yaml_token_type_t) String() string { - switch tt { - case yaml_NO_TOKEN: - return "yaml_NO_TOKEN" - case yaml_STREAM_START_TOKEN: - return "yaml_STREAM_START_TOKEN" - case yaml_STREAM_END_TOKEN: - return "yaml_STREAM_END_TOKEN" - case yaml_VERSION_DIRECTIVE_TOKEN: - return "yaml_VERSION_DIRECTIVE_TOKEN" - case yaml_TAG_DIRECTIVE_TOKEN: - return "yaml_TAG_DIRECTIVE_TOKEN" - case yaml_DOCUMENT_START_TOKEN: - return "yaml_DOCUMENT_START_TOKEN" - case yaml_DOCUMENT_END_TOKEN: - return "yaml_DOCUMENT_END_TOKEN" - case yaml_BLOCK_SEQUENCE_START_TOKEN: - return "yaml_BLOCK_SEQUENCE_START_TOKEN" - case yaml_BLOCK_MAPPING_START_TOKEN: - return "yaml_BLOCK_MAPPING_START_TOKEN" - case yaml_BLOCK_END_TOKEN: - return "yaml_BLOCK_END_TOKEN" - case yaml_FLOW_SEQUENCE_START_TOKEN: - return "yaml_FLOW_SEQUENCE_START_TOKEN" - case yaml_FLOW_SEQUENCE_END_TOKEN: - return "yaml_FLOW_SEQUENCE_END_TOKEN" - case yaml_FLOW_MAPPING_START_TOKEN: - return "yaml_FLOW_MAPPING_START_TOKEN" - case yaml_FLOW_MAPPING_END_TOKEN: - return "yaml_FLOW_MAPPING_END_TOKEN" - case yaml_BLOCK_ENTRY_TOKEN: - return "yaml_BLOCK_ENTRY_TOKEN" - case yaml_FLOW_ENTRY_TOKEN: - return "yaml_FLOW_ENTRY_TOKEN" - case yaml_KEY_TOKEN: - return "yaml_KEY_TOKEN" - case yaml_VALUE_TOKEN: - return "yaml_VALUE_TOKEN" - case yaml_ALIAS_TOKEN: - return "yaml_ALIAS_TOKEN" - case yaml_ANCHOR_TOKEN: - return "yaml_ANCHOR_TOKEN" - case yaml_TAG_TOKEN: - return "yaml_TAG_TOKEN" - case yaml_SCALAR_TOKEN: - return "yaml_SCALAR_TOKEN" - } - return "" -} - -// The token structure. -type yaml_token_t struct { - // The token type. - typ yaml_token_type_t - - // The start/end of the token. - start_mark, end_mark yaml_mark_t - - // The stream encoding (for yaml_STREAM_START_TOKEN). - encoding yaml_encoding_t - - // The alias/anchor/scalar value or tag/tag directive handle - // (for yaml_ALIAS_TOKEN, yaml_ANCHOR_TOKEN, yaml_SCALAR_TOKEN, yaml_TAG_TOKEN, yaml_TAG_DIRECTIVE_TOKEN). - value []byte - - // The tag suffix (for yaml_TAG_TOKEN). - suffix []byte - - // The tag directive prefix (for yaml_TAG_DIRECTIVE_TOKEN). - prefix []byte - - // The scalar style (for yaml_SCALAR_TOKEN). - style yaml_scalar_style_t - - // The version directive major/minor (for yaml_VERSION_DIRECTIVE_TOKEN). - major, minor int8 -} - -// Events - -type yaml_event_type_t int8 - -// Event types. -const ( - // An empty event. - yaml_NO_EVENT yaml_event_type_t = iota - - yaml_STREAM_START_EVENT // A STREAM-START event. - yaml_STREAM_END_EVENT // A STREAM-END event. - yaml_DOCUMENT_START_EVENT // A DOCUMENT-START event. - yaml_DOCUMENT_END_EVENT // A DOCUMENT-END event. - yaml_ALIAS_EVENT // An ALIAS event. - yaml_SCALAR_EVENT // A SCALAR event. - yaml_SEQUENCE_START_EVENT // A SEQUENCE-START event. - yaml_SEQUENCE_END_EVENT // A SEQUENCE-END event. - yaml_MAPPING_START_EVENT // A MAPPING-START event. - yaml_MAPPING_END_EVENT // A MAPPING-END event. -) - -var eventStrings = []string{ - yaml_NO_EVENT: "none", - yaml_STREAM_START_EVENT: "stream start", - yaml_STREAM_END_EVENT: "stream end", - yaml_DOCUMENT_START_EVENT: "document start", - yaml_DOCUMENT_END_EVENT: "document end", - yaml_ALIAS_EVENT: "alias", - yaml_SCALAR_EVENT: "scalar", - yaml_SEQUENCE_START_EVENT: "sequence start", - yaml_SEQUENCE_END_EVENT: "sequence end", - yaml_MAPPING_START_EVENT: "mapping start", - yaml_MAPPING_END_EVENT: "mapping end", -} - -func (e yaml_event_type_t) String() string { - if e < 0 || int(e) >= len(eventStrings) { - return fmt.Sprintf("unknown event %d", e) - } - return eventStrings[e] -} - -// The event structure. -type yaml_event_t struct { - - // The event type. - typ yaml_event_type_t - - // The start and end of the event. - start_mark, end_mark yaml_mark_t - - // The document encoding (for yaml_STREAM_START_EVENT). - encoding yaml_encoding_t - - // The version directive (for yaml_DOCUMENT_START_EVENT). - version_directive *yaml_version_directive_t - - // The list of tag directives (for yaml_DOCUMENT_START_EVENT). - tag_directives []yaml_tag_directive_t - - // The anchor (for yaml_SCALAR_EVENT, yaml_SEQUENCE_START_EVENT, yaml_MAPPING_START_EVENT, yaml_ALIAS_EVENT). - anchor []byte - - // The tag (for yaml_SCALAR_EVENT, yaml_SEQUENCE_START_EVENT, yaml_MAPPING_START_EVENT). - tag []byte - - // The scalar value (for yaml_SCALAR_EVENT). - value []byte - - // Is the document start/end indicator implicit, or the tag optional? - // (for yaml_DOCUMENT_START_EVENT, yaml_DOCUMENT_END_EVENT, yaml_SEQUENCE_START_EVENT, yaml_MAPPING_START_EVENT, yaml_SCALAR_EVENT). - implicit bool - - // Is the tag optional for any non-plain style? (for yaml_SCALAR_EVENT). - quoted_implicit bool - - // The style (for yaml_SCALAR_EVENT, yaml_SEQUENCE_START_EVENT, yaml_MAPPING_START_EVENT). - style yaml_style_t -} - -func (e *yaml_event_t) scalar_style() yaml_scalar_style_t { return yaml_scalar_style_t(e.style) } -func (e *yaml_event_t) sequence_style() yaml_sequence_style_t { return yaml_sequence_style_t(e.style) } -func (e *yaml_event_t) mapping_style() yaml_mapping_style_t { return yaml_mapping_style_t(e.style) } - -// Nodes - -const ( - yaml_NULL_TAG = "tag:yaml.org,2002:null" // The tag !!null with the only possible value: null. - yaml_BOOL_TAG = "tag:yaml.org,2002:bool" // The tag !!bool with the values: true and false. - yaml_STR_TAG = "tag:yaml.org,2002:str" // The tag !!str for string values. - yaml_INT_TAG = "tag:yaml.org,2002:int" // The tag !!int for integer values. - yaml_FLOAT_TAG = "tag:yaml.org,2002:float" // The tag !!float for float values. - yaml_TIMESTAMP_TAG = "tag:yaml.org,2002:timestamp" // The tag !!timestamp for date and time values. - - yaml_SEQ_TAG = "tag:yaml.org,2002:seq" // The tag !!seq is used to denote sequences. - yaml_MAP_TAG = "tag:yaml.org,2002:map" // The tag !!map is used to denote mapping. - - // Not in original libyaml. - yaml_BINARY_TAG = "tag:yaml.org,2002:binary" - yaml_MERGE_TAG = "tag:yaml.org,2002:merge" - - yaml_DEFAULT_SCALAR_TAG = yaml_STR_TAG // The default scalar tag is !!str. - yaml_DEFAULT_SEQUENCE_TAG = yaml_SEQ_TAG // The default sequence tag is !!seq. - yaml_DEFAULT_MAPPING_TAG = yaml_MAP_TAG // The default mapping tag is !!map. -) - -type yaml_node_type_t int - -// Node types. -const ( - // An empty node. - yaml_NO_NODE yaml_node_type_t = iota - - yaml_SCALAR_NODE // A scalar node. - yaml_SEQUENCE_NODE // A sequence node. - yaml_MAPPING_NODE // A mapping node. -) - -// An element of a sequence node. -type yaml_node_item_t int - -// An element of a mapping node. -type yaml_node_pair_t struct { - key int // The key of the element. - value int // The value of the element. -} - -// The node structure. -type yaml_node_t struct { - typ yaml_node_type_t // The node type. - tag []byte // The node tag. - - // The node data. - - // The scalar parameters (for yaml_SCALAR_NODE). - scalar struct { - value []byte // The scalar value. - length int // The length of the scalar value. - style yaml_scalar_style_t // The scalar style. - } - - // The sequence parameters (for YAML_SEQUENCE_NODE). - sequence struct { - items_data []yaml_node_item_t // The stack of sequence items. - style yaml_sequence_style_t // The sequence style. - } - - // The mapping parameters (for yaml_MAPPING_NODE). - mapping struct { - pairs_data []yaml_node_pair_t // The stack of mapping pairs (key, value). - pairs_start *yaml_node_pair_t // The beginning of the stack. - pairs_end *yaml_node_pair_t // The end of the stack. - pairs_top *yaml_node_pair_t // The top of the stack. - style yaml_mapping_style_t // The mapping style. - } - - start_mark yaml_mark_t // The beginning of the node. - end_mark yaml_mark_t // The end of the node. - -} - -// The document structure. -type yaml_document_t struct { - - // The document nodes. - nodes []yaml_node_t - - // The version directive. - version_directive *yaml_version_directive_t - - // The list of tag directives. - tag_directives_data []yaml_tag_directive_t - tag_directives_start int // The beginning of the tag directives list. - tag_directives_end int // The end of the tag directives list. - - start_implicit int // Is the document start indicator implicit? - end_implicit int // Is the document end indicator implicit? - - // The start/end of the document. - start_mark, end_mark yaml_mark_t -} - -// The prototype of a read handler. -// -// The read handler is called when the parser needs to read more bytes from the -// source. The handler should write not more than size bytes to the buffer. -// The number of written bytes should be set to the size_read variable. -// -// [in,out] data A pointer to an application data specified by -// yaml_parser_set_input(). -// [out] buffer The buffer to write the data from the source. -// [in] size The size of the buffer. -// [out] size_read The actual number of bytes read from the source. -// -// On success, the handler should return 1. If the handler failed, -// the returned value should be 0. On EOF, the handler should set the -// size_read to 0 and return 1. -type yaml_read_handler_t func(parser *yaml_parser_t, buffer []byte) (n int, err error) - -// This structure holds information about a potential simple key. -type yaml_simple_key_t struct { - possible bool // Is a simple key possible? - required bool // Is a simple key required? - token_number int // The number of the token. - mark yaml_mark_t // The position mark. -} - -// The states of the parser. -type yaml_parser_state_t int - -const ( - yaml_PARSE_STREAM_START_STATE yaml_parser_state_t = iota - - yaml_PARSE_IMPLICIT_DOCUMENT_START_STATE // Expect the beginning of an implicit document. - yaml_PARSE_DOCUMENT_START_STATE // Expect DOCUMENT-START. - yaml_PARSE_DOCUMENT_CONTENT_STATE // Expect the content of a document. - yaml_PARSE_DOCUMENT_END_STATE // Expect DOCUMENT-END. - yaml_PARSE_BLOCK_NODE_STATE // Expect a block node. - yaml_PARSE_BLOCK_NODE_OR_INDENTLESS_SEQUENCE_STATE // Expect a block node or indentless sequence. - yaml_PARSE_FLOW_NODE_STATE // Expect a flow node. - yaml_PARSE_BLOCK_SEQUENCE_FIRST_ENTRY_STATE // Expect the first entry of a block sequence. - yaml_PARSE_BLOCK_SEQUENCE_ENTRY_STATE // Expect an entry of a block sequence. - yaml_PARSE_INDENTLESS_SEQUENCE_ENTRY_STATE // Expect an entry of an indentless sequence. - yaml_PARSE_BLOCK_MAPPING_FIRST_KEY_STATE // Expect the first key of a block mapping. - yaml_PARSE_BLOCK_MAPPING_KEY_STATE // Expect a block mapping key. - yaml_PARSE_BLOCK_MAPPING_VALUE_STATE // Expect a block mapping value. - yaml_PARSE_FLOW_SEQUENCE_FIRST_ENTRY_STATE // Expect the first entry of a flow sequence. - yaml_PARSE_FLOW_SEQUENCE_ENTRY_STATE // Expect an entry of a flow sequence. - yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_KEY_STATE // Expect a key of an ordered mapping. - yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_VALUE_STATE // Expect a value of an ordered mapping. - yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_END_STATE // Expect the and of an ordered mapping entry. - yaml_PARSE_FLOW_MAPPING_FIRST_KEY_STATE // Expect the first key of a flow mapping. - yaml_PARSE_FLOW_MAPPING_KEY_STATE // Expect a key of a flow mapping. - yaml_PARSE_FLOW_MAPPING_VALUE_STATE // Expect a value of a flow mapping. - yaml_PARSE_FLOW_MAPPING_EMPTY_VALUE_STATE // Expect an empty value of a flow mapping. - yaml_PARSE_END_STATE // Expect nothing. -) - -func (ps yaml_parser_state_t) String() string { - switch ps { - case yaml_PARSE_STREAM_START_STATE: - return "yaml_PARSE_STREAM_START_STATE" - case yaml_PARSE_IMPLICIT_DOCUMENT_START_STATE: - return "yaml_PARSE_IMPLICIT_DOCUMENT_START_STATE" - case yaml_PARSE_DOCUMENT_START_STATE: - return "yaml_PARSE_DOCUMENT_START_STATE" - case yaml_PARSE_DOCUMENT_CONTENT_STATE: - return "yaml_PARSE_DOCUMENT_CONTENT_STATE" - case yaml_PARSE_DOCUMENT_END_STATE: - return "yaml_PARSE_DOCUMENT_END_STATE" - case yaml_PARSE_BLOCK_NODE_STATE: - return "yaml_PARSE_BLOCK_NODE_STATE" - case yaml_PARSE_BLOCK_NODE_OR_INDENTLESS_SEQUENCE_STATE: - return "yaml_PARSE_BLOCK_NODE_OR_INDENTLESS_SEQUENCE_STATE" - case yaml_PARSE_FLOW_NODE_STATE: - return "yaml_PARSE_FLOW_NODE_STATE" - case yaml_PARSE_BLOCK_SEQUENCE_FIRST_ENTRY_STATE: - return "yaml_PARSE_BLOCK_SEQUENCE_FIRST_ENTRY_STATE" - case yaml_PARSE_BLOCK_SEQUENCE_ENTRY_STATE: - return "yaml_PARSE_BLOCK_SEQUENCE_ENTRY_STATE" - case yaml_PARSE_INDENTLESS_SEQUENCE_ENTRY_STATE: - return "yaml_PARSE_INDENTLESS_SEQUENCE_ENTRY_STATE" - case yaml_PARSE_BLOCK_MAPPING_FIRST_KEY_STATE: - return "yaml_PARSE_BLOCK_MAPPING_FIRST_KEY_STATE" - case yaml_PARSE_BLOCK_MAPPING_KEY_STATE: - return "yaml_PARSE_BLOCK_MAPPING_KEY_STATE" - case yaml_PARSE_BLOCK_MAPPING_VALUE_STATE: - return "yaml_PARSE_BLOCK_MAPPING_VALUE_STATE" - case yaml_PARSE_FLOW_SEQUENCE_FIRST_ENTRY_STATE: - return "yaml_PARSE_FLOW_SEQUENCE_FIRST_ENTRY_STATE" - case yaml_PARSE_FLOW_SEQUENCE_ENTRY_STATE: - return "yaml_PARSE_FLOW_SEQUENCE_ENTRY_STATE" - case yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_KEY_STATE: - return "yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_KEY_STATE" - case yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_VALUE_STATE: - return "yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_VALUE_STATE" - case yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_END_STATE: - return "yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_END_STATE" - case yaml_PARSE_FLOW_MAPPING_FIRST_KEY_STATE: - return "yaml_PARSE_FLOW_MAPPING_FIRST_KEY_STATE" - case yaml_PARSE_FLOW_MAPPING_KEY_STATE: - return "yaml_PARSE_FLOW_MAPPING_KEY_STATE" - case yaml_PARSE_FLOW_MAPPING_VALUE_STATE: - return "yaml_PARSE_FLOW_MAPPING_VALUE_STATE" - case yaml_PARSE_FLOW_MAPPING_EMPTY_VALUE_STATE: - return "yaml_PARSE_FLOW_MAPPING_EMPTY_VALUE_STATE" - case yaml_PARSE_END_STATE: - return "yaml_PARSE_END_STATE" - } - return "" -} - -// This structure holds aliases data. -type yaml_alias_data_t struct { - anchor []byte // The anchor. - index int // The node id. - mark yaml_mark_t // The anchor mark. -} - -// The parser structure. -// -// All members are internal. Manage the structure using the -// yaml_parser_ family of functions. -type yaml_parser_t struct { - - // Error handling - - error yaml_error_type_t // Error type. - - problem string // Error description. - - // The byte about which the problem occurred. - problem_offset int - problem_value int - problem_mark yaml_mark_t - - // The error context. - context string - context_mark yaml_mark_t - - // Reader stuff - - read_handler yaml_read_handler_t // Read handler. - - input_reader io.Reader // File input data. - input []byte // String input data. - input_pos int - - eof bool // EOF flag - - buffer []byte // The working buffer. - buffer_pos int // The current position of the buffer. - - unread int // The number of unread characters in the buffer. - - raw_buffer []byte // The raw buffer. - raw_buffer_pos int // The current position of the buffer. - - encoding yaml_encoding_t // The input encoding. - - offset int // The offset of the current position (in bytes). - mark yaml_mark_t // The mark of the current position. - - // Scanner stuff - - stream_start_produced bool // Have we started to scan the input stream? - stream_end_produced bool // Have we reached the end of the input stream? - - flow_level int // The number of unclosed '[' and '{' indicators. - - tokens []yaml_token_t // The tokens queue. - tokens_head int // The head of the tokens queue. - tokens_parsed int // The number of tokens fetched from the queue. - token_available bool // Does the tokens queue contain a token ready for dequeueing. - - indent int // The current indentation level. - indents []int // The indentation levels stack. - - simple_key_allowed bool // May a simple key occur at the current position? - simple_keys []yaml_simple_key_t // The stack of simple keys. - simple_keys_by_tok map[int]int // possible simple_key indexes indexed by token_number - - // Parser stuff - - state yaml_parser_state_t // The current parser state. - states []yaml_parser_state_t // The parser states stack. - marks []yaml_mark_t // The stack of marks. - tag_directives []yaml_tag_directive_t // The list of TAG directives. - - // Dumper stuff - - aliases []yaml_alias_data_t // The alias data. - - document *yaml_document_t // The currently parsed document. -} - -// Emitter Definitions - -// The prototype of a write handler. -// -// The write handler is called when the emitter needs to flush the accumulated -// characters to the output. The handler should write @a size bytes of the -// @a buffer to the output. -// -// @param[in,out] data A pointer to an application data specified by -// yaml_emitter_set_output(). -// @param[in] buffer The buffer with bytes to be written. -// @param[in] size The size of the buffer. -// -// @returns On success, the handler should return @c 1. If the handler failed, -// the returned value should be @c 0. -// -type yaml_write_handler_t func(emitter *yaml_emitter_t, buffer []byte) error - -type yaml_emitter_state_t int - -// The emitter states. -const ( - // Expect STREAM-START. - yaml_EMIT_STREAM_START_STATE yaml_emitter_state_t = iota - - yaml_EMIT_FIRST_DOCUMENT_START_STATE // Expect the first DOCUMENT-START or STREAM-END. - yaml_EMIT_DOCUMENT_START_STATE // Expect DOCUMENT-START or STREAM-END. - yaml_EMIT_DOCUMENT_CONTENT_STATE // Expect the content of a document. - yaml_EMIT_DOCUMENT_END_STATE // Expect DOCUMENT-END. - yaml_EMIT_FLOW_SEQUENCE_FIRST_ITEM_STATE // Expect the first item of a flow sequence. - yaml_EMIT_FLOW_SEQUENCE_ITEM_STATE // Expect an item of a flow sequence. - yaml_EMIT_FLOW_MAPPING_FIRST_KEY_STATE // Expect the first key of a flow mapping. - yaml_EMIT_FLOW_MAPPING_KEY_STATE // Expect a key of a flow mapping. - yaml_EMIT_FLOW_MAPPING_SIMPLE_VALUE_STATE // Expect a value for a simple key of a flow mapping. - yaml_EMIT_FLOW_MAPPING_VALUE_STATE // Expect a value of a flow mapping. - yaml_EMIT_BLOCK_SEQUENCE_FIRST_ITEM_STATE // Expect the first item of a block sequence. - yaml_EMIT_BLOCK_SEQUENCE_ITEM_STATE // Expect an item of a block sequence. - yaml_EMIT_BLOCK_MAPPING_FIRST_KEY_STATE // Expect the first key of a block mapping. - yaml_EMIT_BLOCK_MAPPING_KEY_STATE // Expect the key of a block mapping. - yaml_EMIT_BLOCK_MAPPING_SIMPLE_VALUE_STATE // Expect a value for a simple key of a block mapping. - yaml_EMIT_BLOCK_MAPPING_VALUE_STATE // Expect a value of a block mapping. - yaml_EMIT_END_STATE // Expect nothing. -) - -// The emitter structure. -// -// All members are internal. Manage the structure using the @c yaml_emitter_ -// family of functions. -type yaml_emitter_t struct { - - // Error handling - - error yaml_error_type_t // Error type. - problem string // Error description. - - // Writer stuff - - write_handler yaml_write_handler_t // Write handler. - - output_buffer *[]byte // String output data. - output_writer io.Writer // File output data. - - buffer []byte // The working buffer. - buffer_pos int // The current position of the buffer. - - raw_buffer []byte // The raw buffer. - raw_buffer_pos int // The current position of the buffer. - - encoding yaml_encoding_t // The stream encoding. - - // Emitter stuff - - canonical bool // If the output is in the canonical style? - best_indent int // The number of indentation spaces. - best_width int // The preferred width of the output lines. - unicode bool // Allow unescaped non-ASCII characters? - line_break yaml_break_t // The preferred line break. - - state yaml_emitter_state_t // The current emitter state. - states []yaml_emitter_state_t // The stack of states. - - events []yaml_event_t // The event queue. - events_head int // The head of the event queue. - - indents []int // The stack of indentation levels. - - tag_directives []yaml_tag_directive_t // The list of tag directives. - - indent int // The current indentation level. - - flow_level int // The current flow level. - - root_context bool // Is it the document root context? - sequence_context bool // Is it a sequence context? - mapping_context bool // Is it a mapping context? - simple_key_context bool // Is it a simple mapping key context? - - line int // The current line. - column int // The current column. - whitespace bool // If the last character was a whitespace? - indention bool // If the last character was an indentation character (' ', '-', '?', ':')? - open_ended bool // If an explicit document end is required? - - // Anchor analysis. - anchor_data struct { - anchor []byte // The anchor value. - alias bool // Is it an alias? - } - - // Tag analysis. - tag_data struct { - handle []byte // The tag handle. - suffix []byte // The tag suffix. - } - - // Scalar analysis. - scalar_data struct { - value []byte // The scalar value. - multiline bool // Does the scalar contain line breaks? - flow_plain_allowed bool // Can the scalar be expessed in the flow plain style? - block_plain_allowed bool // Can the scalar be expressed in the block plain style? - single_quoted_allowed bool // Can the scalar be expressed in the single quoted style? - block_allowed bool // Can the scalar be expressed in the literal or folded styles? - style yaml_scalar_style_t // The output style. - } - - // Dumper stuff - - opened bool // If the stream was already opened? - closed bool // If the stream was already closed? - - // The information associated with the document nodes. - anchors *struct { - references int // The number of references. - anchor int // The anchor id. - serialized bool // If the node has been emitted? - } - - last_anchor_id int // The last assigned anchor id. - - document *yaml_document_t // The currently emitted document. -} diff --git a/vendor/gopkg.in/yaml.v2/yamlprivateh.go b/vendor/gopkg.in/yaml.v2/yamlprivateh.go deleted file mode 100644 index 8110ce3..0000000 --- a/vendor/gopkg.in/yaml.v2/yamlprivateh.go +++ /dev/null @@ -1,173 +0,0 @@ -package yaml - -const ( - // The size of the input raw buffer. - input_raw_buffer_size = 512 - - // The size of the input buffer. - // It should be possible to decode the whole raw buffer. - input_buffer_size = input_raw_buffer_size * 3 - - // The size of the output buffer. - output_buffer_size = 128 - - // The size of the output raw buffer. - // It should be possible to encode the whole output buffer. - output_raw_buffer_size = (output_buffer_size*2 + 2) - - // The size of other stacks and queues. - initial_stack_size = 16 - initial_queue_size = 16 - initial_string_size = 16 -) - -// Check if the character at the specified position is an alphabetical -// character, a digit, '_', or '-'. -func is_alpha(b []byte, i int) bool { - return b[i] >= '0' && b[i] <= '9' || b[i] >= 'A' && b[i] <= 'Z' || b[i] >= 'a' && b[i] <= 'z' || b[i] == '_' || b[i] == '-' -} - -// Check if the character at the specified position is a digit. -func is_digit(b []byte, i int) bool { - return b[i] >= '0' && b[i] <= '9' -} - -// Get the value of a digit. -func as_digit(b []byte, i int) int { - return int(b[i]) - '0' -} - -// Check if the character at the specified position is a hex-digit. -func is_hex(b []byte, i int) bool { - return b[i] >= '0' && b[i] <= '9' || b[i] >= 'A' && b[i] <= 'F' || b[i] >= 'a' && b[i] <= 'f' -} - -// Get the value of a hex-digit. -func as_hex(b []byte, i int) int { - bi := b[i] - if bi >= 'A' && bi <= 'F' { - return int(bi) - 'A' + 10 - } - if bi >= 'a' && bi <= 'f' { - return int(bi) - 'a' + 10 - } - return int(bi) - '0' -} - -// Check if the character is ASCII. -func is_ascii(b []byte, i int) bool { - return b[i] <= 0x7F -} - -// Check if the character at the start of the buffer can be printed unescaped. -func is_printable(b []byte, i int) bool { - return ((b[i] == 0x0A) || // . == #x0A - (b[i] >= 0x20 && b[i] <= 0x7E) || // #x20 <= . <= #x7E - (b[i] == 0xC2 && b[i+1] >= 0xA0) || // #0xA0 <= . <= #xD7FF - (b[i] > 0xC2 && b[i] < 0xED) || - (b[i] == 0xED && b[i+1] < 0xA0) || - (b[i] == 0xEE) || - (b[i] == 0xEF && // #xE000 <= . <= #xFFFD - !(b[i+1] == 0xBB && b[i+2] == 0xBF) && // && . != #xFEFF - !(b[i+1] == 0xBF && (b[i+2] == 0xBE || b[i+2] == 0xBF)))) -} - -// Check if the character at the specified position is NUL. -func is_z(b []byte, i int) bool { - return b[i] == 0x00 -} - -// Check if the beginning of the buffer is a BOM. -func is_bom(b []byte, i int) bool { - return b[0] == 0xEF && b[1] == 0xBB && b[2] == 0xBF -} - -// Check if the character at the specified position is space. -func is_space(b []byte, i int) bool { - return b[i] == ' ' -} - -// Check if the character at the specified position is tab. -func is_tab(b []byte, i int) bool { - return b[i] == '\t' -} - -// Check if the character at the specified position is blank (space or tab). -func is_blank(b []byte, i int) bool { - //return is_space(b, i) || is_tab(b, i) - return b[i] == ' ' || b[i] == '\t' -} - -// Check if the character at the specified position is a line break. -func is_break(b []byte, i int) bool { - return (b[i] == '\r' || // CR (#xD) - b[i] == '\n' || // LF (#xA) - b[i] == 0xC2 && b[i+1] == 0x85 || // NEL (#x85) - b[i] == 0xE2 && b[i+1] == 0x80 && b[i+2] == 0xA8 || // LS (#x2028) - b[i] == 0xE2 && b[i+1] == 0x80 && b[i+2] == 0xA9) // PS (#x2029) -} - -func is_crlf(b []byte, i int) bool { - return b[i] == '\r' && b[i+1] == '\n' -} - -// Check if the character is a line break or NUL. -func is_breakz(b []byte, i int) bool { - //return is_break(b, i) || is_z(b, i) - return ( // is_break: - b[i] == '\r' || // CR (#xD) - b[i] == '\n' || // LF (#xA) - b[i] == 0xC2 && b[i+1] == 0x85 || // NEL (#x85) - b[i] == 0xE2 && b[i+1] == 0x80 && b[i+2] == 0xA8 || // LS (#x2028) - b[i] == 0xE2 && b[i+1] == 0x80 && b[i+2] == 0xA9 || // PS (#x2029) - // is_z: - b[i] == 0) -} - -// Check if the character is a line break, space, or NUL. -func is_spacez(b []byte, i int) bool { - //return is_space(b, i) || is_breakz(b, i) - return ( // is_space: - b[i] == ' ' || - // is_breakz: - b[i] == '\r' || // CR (#xD) - b[i] == '\n' || // LF (#xA) - b[i] == 0xC2 && b[i+1] == 0x85 || // NEL (#x85) - b[i] == 0xE2 && b[i+1] == 0x80 && b[i+2] == 0xA8 || // LS (#x2028) - b[i] == 0xE2 && b[i+1] == 0x80 && b[i+2] == 0xA9 || // PS (#x2029) - b[i] == 0) -} - -// Check if the character is a line break, space, tab, or NUL. -func is_blankz(b []byte, i int) bool { - //return is_blank(b, i) || is_breakz(b, i) - return ( // is_blank: - b[i] == ' ' || b[i] == '\t' || - // is_breakz: - b[i] == '\r' || // CR (#xD) - b[i] == '\n' || // LF (#xA) - b[i] == 0xC2 && b[i+1] == 0x85 || // NEL (#x85) - b[i] == 0xE2 && b[i+1] == 0x80 && b[i+2] == 0xA8 || // LS (#x2028) - b[i] == 0xE2 && b[i+1] == 0x80 && b[i+2] == 0xA9 || // PS (#x2029) - b[i] == 0) -} - -// Determine the width of the character. -func width(b byte) int { - // Don't replace these by a switch without first - // confirming that it is being inlined. - if b&0x80 == 0x00 { - return 1 - } - if b&0xE0 == 0xC0 { - return 2 - } - if b&0xF0 == 0xE0 { - return 3 - } - if b&0xF8 == 0xF0 { - return 4 - } - return 0 - -} diff --git a/vendor/modules.txt b/vendor/modules.txt deleted file mode 100644 index f0ec3ad..0000000 --- a/vendor/modules.txt +++ /dev/null @@ -1,4 +0,0 @@ -# github.com/davecgh/go-spew v1.1.1 -github.com/davecgh/go-spew/spew -# gopkg.in/yaml.v2 v2.4.0 -gopkg.in/yaml.v2 diff --git a/yaml.go b/yaml.go index efbc535..04ed20f 100644 --- a/yaml.go +++ b/yaml.go @@ -1,3 +1,19 @@ +/* +Copyright 2021 The Kubernetes Authors. + +Licensed under the Apache License, Version 2.0 (the "License"); +you may not use this file except in compliance with the License. +You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + +Unless required by applicable law or agreed to in writing, software +distributed under the License is distributed on an "AS IS" BASIS, +WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +See the License for the specific language governing permissions and +limitations under the License. +*/ + package yaml import ( @@ -11,53 +27,56 @@ import ( "gopkg.in/yaml.v2" ) -// Marshal marshals the object into JSON then converts JSON to YAML and returns the -// YAML. -func Marshal(o interface{}) ([]byte, error) { - j, err := json.Marshal(o) +// Marshal marshals obj into JSON using stdlib json.Marshal, and then converts JSON to YAML using JSONToYAML (see that method for more reference) +func Marshal(obj interface{}) ([]byte, error) { + jsonBytes, err := json.Marshal(obj) if err != nil { - return nil, fmt.Errorf("error marshaling into JSON: %v", err) + return nil, fmt.Errorf("error marshaling into JSON: %w", err) } - y, err := JSONToYAML(j) - if err != nil { - return nil, fmt.Errorf("error converting JSON to YAML: %v", err) - } - - return y, nil + return JSONToYAML(jsonBytes) } // JSONOpt is a decoding option for decoding from JSON format. type JSONOpt func(*json.Decoder) *json.Decoder -// Unmarshal converts YAML to JSON then uses JSON to unmarshal into an object, -// optionally configuring the behavior of the JSON unmarshal. -func Unmarshal(y []byte, o interface{}, opts ...JSONOpt) error { - return yamlUnmarshal(y, o, false, opts...) +// Unmarshal first converts the given YAML to JSON, and then unmarshals the JSON into obj. Options for the +// standard library json.Decoder can be optionally specified, e.g. to decode untyped numbers into json.Number instead of float64, or to disallow unknown fields (but for that purpose, see also UnmarshalStrict). obj must be a non-nil pointer. +// +// Important notes about the Unmarshal logic: +// +// - Decoding is case-insensitive, unlike the rest of Kubernetes API machinery, as this is using the stdlib json library. This might be confusing to users. +// - This decodes any number (although it is an integer) into a float64 if the type of obj is unknown, e.g. *map[string]interface{}, *interface{}, or *[]interface{}. This means integers above +/- 2^53 will lose precision when round-tripping. Make a JSONOpt that calls d.UseNumber() to avoid this. +// - Duplicate fields, including in-case-sensitive matches, are ignored in an undefined order. Note that the YAML specification forbids duplicate fields, so this logic is more permissive than it needs to. See UnmarshalStrict for an alternative. +// - Unknown fields, i.e. serialized data that do not map to a field in obj, are ignored. Use d.DisallowUnknownFields() or UnmarshalStrict to override. +// - As per the YAML 1.1 specification, which yaml.v2 used underneath implements, literal 'yes' and 'no' strings without quotation marks will be converted to true/false implicitly. +// - YAML non-string keys, e.g. ints, bools and floats, are converted to strings implicitly during the YAML to JSON conversion process. +// - There are no compatibility guarantees for returned error values. +func Unmarshal(yamlBytes []byte, obj interface{}, opts ...JSONOpt) error { + return unmarshal(yamlBytes, obj, yaml.Unmarshal, opts...) } -// UnmarshalStrict strictly converts YAML to JSON then uses JSON to unmarshal -// into an object, optionally configuring the behavior of the JSON unmarshal. -func UnmarshalStrict(y []byte, o interface{}, opts ...JSONOpt) error { - return yamlUnmarshal(y, o, true, append(opts, DisallowUnknownFields)...) +// UnmarshalStrict is similar to Unmarshal (please read its documentation for reference), with the following exceptions: +// +// - Duplicate fields in an object yield an error. This is according to the YAML specification. +// - If obj, or any of its recursive children, is a struct, presence of fields in the serialized data unknown to the struct will yield an error. +func UnmarshalStrict(yamlBytes []byte, obj interface{}, opts ...JSONOpt) error { + return unmarshal(yamlBytes, obj, yaml.UnmarshalStrict, append(opts, DisallowUnknownFields)...) } -// yamlUnmarshal unmarshals the given YAML byte stream into the given interface, +// unmarshal unmarshals the given YAML byte stream into the given interface, // optionally performing the unmarshalling strictly -func yamlUnmarshal(y []byte, o interface{}, strict bool, opts ...JSONOpt) error { - vo := reflect.ValueOf(o) - unmarshalFn := yaml.Unmarshal - if strict { - unmarshalFn = yaml.UnmarshalStrict - } - j, err := yamlToJSON(y, &vo, unmarshalFn) +func unmarshal(yamlBytes []byte, obj interface{}, unmarshalFn func([]byte, interface{}) error, opts ...JSONOpt) error { + jsonTarget := reflect.ValueOf(obj) + + jsonBytes, err := yamlToJSONTarget(yamlBytes, &jsonTarget, unmarshalFn) if err != nil { - return fmt.Errorf("error converting YAML to JSON: %v", err) + return fmt.Errorf("error converting YAML to JSON: %w", err) } - err = jsonUnmarshal(bytes.NewReader(j), o, opts...) + err = jsonUnmarshal(bytes.NewReader(jsonBytes), obj, opts...) if err != nil { - return fmt.Errorf("error unmarshaling JSON: %v", err) + return fmt.Errorf("error unmarshaling JSON: %w", err) } return nil @@ -67,21 +86,23 @@ func yamlUnmarshal(y []byte, o interface{}, strict bool, opts ...JSONOpt) error // object, optionally applying decoder options prior to decoding. We are not // using json.Unmarshal directly as we want the chance to pass in non-default // options. -func jsonUnmarshal(r io.Reader, o interface{}, opts ...JSONOpt) error { - d := json.NewDecoder(r) +func jsonUnmarshal(reader io.Reader, obj interface{}, opts ...JSONOpt) error { + d := json.NewDecoder(reader) for _, opt := range opts { d = opt(d) } - if err := d.Decode(&o); err != nil { - return fmt.Errorf("while decoding JSON: %v", err) - } - return nil + return d.Decode(obj) } -// JSONToYAML Converts JSON to YAML. +// JSONToYAML converts JSON to YAML. Notable implementation details: +// +// - Duplicate fields, are case-sensitively ignored in an undefined order. +// - The sequence indentation style is compact, which means that the "- " marker for a YAML sequence will be on the same indentation level as the sequence field name. +// - Unlike Unmarshal, all integers, up to 64 bits, are preserved during this round-trip. func JSONToYAML(j []byte) ([]byte, error) { // Convert the JSON to an object. var jsonObj interface{} + // We are using yaml.Unmarshal here (instead of json.Unmarshal) because the // Go JSON library doesn't try to pick the right number type (int, float, // etc.) when unmarshalling to interface{}, it just picks float64 @@ -89,41 +110,52 @@ func JSONToYAML(j []byte) ([]byte, error) { // number type, so we can preserve number type throughout this process. err := yaml.Unmarshal(j, &jsonObj) if err != nil { - return nil, err + return nil, fmt.Errorf("error converting JSON to YAML: %w", err) } // Marshal this object into YAML. - return yaml.Marshal(jsonObj) + yamlBytes, err := yaml.Marshal(jsonObj) + if err != nil { + return nil, fmt.Errorf("error converting JSON to YAML: %w", err) + } + + return yamlBytes, nil } // YAMLToJSON converts YAML to JSON. Since JSON is a subset of YAML, // passing JSON through this method should be a no-op. // -// Things YAML can do that are not supported by JSON: +// Some things YAML can do that are not supported by JSON: // * In YAML you can have binary and null keys in your maps. These are invalid -// in JSON. (int and float keys are converted to strings.) +// in JSON, and therefore int, bool and float keys are converted to strings implicitly. // * Binary data in YAML with the !!binary tag is not supported. If you want to // use binary data with this library, encode the data as base64 as usual but do // not use the !!binary tag in your YAML. This will ensure the original base64 // encoded data makes it all the way through to the JSON. +// * And more... read the YAML specification for more details. +// +// Notable about the implementation: // -// For strict decoding of YAML, use YAMLToJSONStrict. +// - Duplicate fields are case-sensitively ignored in an undefined order. Note that the YAML specification forbids duplicate fields, so this logic is more permissive than it needs to. See YAMLToJSONStrict for an alternative. +// - As per the YAML 1.1 specification, which yaml.v2 used underneath implements, literal 'yes' and 'no' strings without quotation marks will be converted to true/false implicitly. +// - Unlike Unmarshal, all integers, up to 64 bits, are preserved during this round-trip. +// - There are no compatibility guarantees for returned error values. func YAMLToJSON(y []byte) ([]byte, error) { - return yamlToJSON(y, nil, yaml.Unmarshal) + return yamlToJSONTarget(y, nil, yaml.Unmarshal) } // YAMLToJSONStrict is like YAMLToJSON but enables strict YAML decoding, // returning an error on any duplicate field names. func YAMLToJSONStrict(y []byte) ([]byte, error) { - return yamlToJSON(y, nil, yaml.UnmarshalStrict) + return yamlToJSONTarget(y, nil, yaml.UnmarshalStrict) } -func yamlToJSON(y []byte, jsonTarget *reflect.Value, yamlUnmarshal func([]byte, interface{}) error) ([]byte, error) { +func yamlToJSONTarget(yamlBytes []byte, jsonTarget *reflect.Value, unmarshalFn func([]byte, interface{}) error) ([]byte, error) { // Convert the YAML to an object. var yamlObj interface{} - err := yamlUnmarshal(y, &yamlObj) + err := unmarshalFn(yamlBytes, &yamlObj) if err != nil { - return nil, err + return nil, fmt.Errorf("error converting YAML to JSON: %w", err) } // YAML objects are not completely compatible with JSON objects (e.g. you @@ -132,11 +164,15 @@ func yamlToJSON(y []byte, jsonTarget *reflect.Value, yamlUnmarshal func([]byte, // incompatibilties happen along the way. jsonObj, err := convertToJSONableObject(yamlObj, jsonTarget) if err != nil { - return nil, err + return nil, fmt.Errorf("error converting YAML to JSON: %w", err) } // Convert this object to JSON and return the data. - return json.Marshal(jsonObj) + jsonBytes, err := json.Marshal(jsonObj) + if err != nil { + return nil, fmt.Errorf("error converting YAML to JSON: %w", err) + } + return jsonBytes, nil } func convertToJSONableObject(yamlObj interface{}, jsonTarget *reflect.Value) (interface{}, error) { @@ -147,13 +183,13 @@ func convertToJSONableObject(yamlObj interface{}, jsonTarget *reflect.Value) (in // decoding into the value, we're just checking if the ultimate target is a // string. if jsonTarget != nil { - ju, tu, pv := indirect(*jsonTarget, false) + jsonUnmarshaler, textUnmarshaler, pointerValue := indirect(*jsonTarget, false) // We have a JSON or Text Umarshaler at this level, so we can't be trying // to decode into a string. - if ju != nil || tu != nil { + if jsonUnmarshaler != nil || textUnmarshaler != nil { jsonTarget = nil } else { - jsonTarget = &pv + jsonTarget = &pointerValue } } @@ -205,7 +241,7 @@ func convertToJSONableObject(yamlObj interface{}, jsonTarget *reflect.Value) (in keyString = "false" } default: - return nil, fmt.Errorf("Unsupported map key of type: %s, key: %+#v, value: %+#v", + return nil, fmt.Errorf("unsupported map key of type: %s, key: %+#v, value: %+#v", reflect.TypeOf(k), k, v) } diff --git a/yaml_go110.go b/yaml_go110.go index ab3e06a..94abc17 100644 --- a/yaml_go110.go +++ b/yaml_go110.go @@ -1,7 +1,24 @@ // This file contains changes that are only compatible with go 1.10 and onwards. +//go:build go1.10 // +build go1.10 +/* +Copyright 2021 The Kubernetes Authors. + +Licensed under the Apache License, Version 2.0 (the "License"); +you may not use this file except in compliance with the License. +You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + +Unless required by applicable law or agreed to in writing, software +distributed under the License is distributed on an "AS IS" BASIS, +WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +See the License for the specific language governing permissions and +limitations under the License. +*/ + package yaml import "encoding/json" diff --git a/yaml_go110_test.go b/yaml_go110_test.go index e4707e8..629fff4 100644 --- a/yaml_go110_test.go +++ b/yaml_go110_test.go @@ -1,5 +1,22 @@ +//go:build go1.10 // +build go1.10 +/* +Copyright 2021 The Kubernetes Authors. + +Licensed under the Apache License, Version 2.0 (the "License"); +you may not use this file except in compliance with the License. +You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + +Unless required by applicable law or agreed to in writing, software +distributed under the License is distributed on an "AS IS" BASIS, +WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +See the License for the specific language governing permissions and +limitations under the License. +*/ + package yaml import ( diff --git a/yaml_test.go b/yaml_test.go index 9da43e1..785162a 100644 --- a/yaml_test.go +++ b/yaml_test.go @@ -1,3 +1,19 @@ +/* +Copyright 2021 The Kubernetes Authors. + +Licensed under the Apache License, Version 2.0 (the "License"); +you may not use this file except in compliance with the License. +You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + +Unless required by applicable law or agreed to in writing, software +distributed under the License is distributed on an "AS IS" BASIS, +WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +See the License for the specific language governing permissions and +limitations under the License. +*/ + package yaml import ( @@ -13,6 +29,147 @@ import ( yaml "gopkg.in/yaml.v2" ) +/* Test helper functions */ + +func strPtr(str string) *string { + return &str +} + +type errorType int + +const ( + noErrorsType errorType = 0 + fatalErrorsType errorType = 1 << iota +) + +type unmarshalTestCase struct { + encoded []byte + decodeInto interface{} + decoded interface{} + err errorType +} + +type testUnmarshalFunc = func(yamlBytes []byte, obj interface{}) error + +var ( + funcUnmarshal testUnmarshalFunc = func(yamlBytes []byte, obj interface{}) error { + return Unmarshal(yamlBytes, obj) + } + + funcUnmarshalStrict testUnmarshalFunc = func(yamlBytes []byte, obj interface{}) error { + return UnmarshalStrict(yamlBytes, obj) + } +) + +func testUnmarshal(t *testing.T, f testUnmarshalFunc, tests map[string]unmarshalTestCase) { + for testName, test := range tests { + t.Run(testName, func(t *testing.T) { + typ := reflect.TypeOf(test.decodeInto) + if typ.Kind() != reflect.Ptr { + t.Errorf("unmarshalTest.ptr %T is not a pointer type", test.decodeInto) + } + + value := reflect.New(typ.Elem()) + + if !reflect.DeepEqual(test.decodeInto, value.Interface()) { + // There's no reason for ptr to point to non-zero data, + // as we decode into new(right-type), so the data is + // discarded. + // This can easily mean tests that silently don't test + // what they should. To test decoding into existing + // data, see TestPrefilled. + t.Errorf("unmarshalTest.ptr %#v is not a pointer to a zero value", test.decodeInto) + } + + err := f(test.encoded, value.Interface()) + if err != nil && test.err == noErrorsType { + t.Errorf("error unmarshaling YAML: %v", err) + } + if err == nil && test.err&fatalErrorsType != 0 { + t.Errorf("expected a fatal error, but no fatal error was returned, yaml: `%s`", test.encoded) + } + + if test.err&fatalErrorsType != 0 { + // Don't check output if error is fatal + return + } + + if !reflect.DeepEqual(value.Elem().Interface(), test.decoded) { + t.Errorf("unmarshal YAML was unsuccessful, expected: %+#v, got: %+#v", test.decoded, value.Elem().Interface()) + } + }) + } +} + +type yamlToJSONTestcase struct { + yaml string + json string + // By default we test that reversing the output == input. But if there is a + // difference in the reversed output, you can optionally specify it here. + yaml_reverse_overwrite *string + err errorType +} + +type testYAMLToJSONFunc = func(yamlBytes []byte) ([]byte, error) + +var ( + funcYAMLToJSON testYAMLToJSONFunc = func(yamlBytes []byte) ([]byte, error) { + return YAMLToJSON(yamlBytes) + } + + funcYAMLToJSONStrict testYAMLToJSONFunc = func(yamlBytes []byte) ([]byte, error) { + return YAMLToJSONStrict(yamlBytes) + } +) + +func testYAMLToJSON(t *testing.T, f testYAMLToJSONFunc, tests map[string]yamlToJSONTestcase) { + for testName, test := range tests { + t.Run(fmt.Sprintf("%s_YAMLToJSON", testName), func(t *testing.T) { + // Convert Yaml to Json + jsonBytes, err := f([]byte(test.yaml)) + if err != nil && test.err == noErrorsType { + t.Errorf("Failed to convert YAML to JSON, yaml: `%s`, err: %v", test.yaml, err) + } + if err == nil && test.err&fatalErrorsType != 0 { + t.Errorf("expected a fatal error, but no fatal error was returned, yaml: `%s`", test.yaml) + } + + if test.err&fatalErrorsType != 0 { + // Don't check output if error is fatal + return + } + + // Check it against the expected output. + if string(jsonBytes) != test.json { + t.Errorf("Failed to convert YAML to JSON, yaml: `%s`, expected json `%s`, got `%s`", test.yaml, test.json, string(jsonBytes)) + } + }) + + t.Run(fmt.Sprintf("%s_JSONToYAML", testName), func(t *testing.T) { + // Convert JSON to YAML + yamlBytes, err := JSONToYAML([]byte(test.json)) + if err != nil { + t.Errorf("Failed to convert JSON to YAML, json: `%s`, err: %v", test.json, err) + } + + // Set the string that we will compare the reversed output to. + correctYamlString := test.yaml + + // If a special reverse string was specified, use that instead. + if test.yaml_reverse_overwrite != nil { + correctYamlString = *test.yaml_reverse_overwrite + } + + // Check it against the expected output. + if string(yamlBytes) != correctYamlString { + t.Errorf("Failed to convert JSON to YAML, json: `%s`, expected yaml `%s`, got `%s`", test.json, correctYamlString, string(yamlBytes)) + } + }) + } +} + +/* Start tests */ + type MarshalTest struct { A string B int64 @@ -37,398 +194,583 @@ func TestMarshal(t *testing.T) { } } -type UnmarshalString struct { +type UnmarshalUntaggedStruct struct { A string True string } -type UnmarshalStringMap struct { - A map[string]string +type UnmarshalTaggedStruct struct { + AUpper string `json:"A"` + ALower string `json:"a"` + TrueUpper string `json:"True"` + TrueLower string `json:"true"` + YesUpper string `json:"Yes"` + YesLower string `json:"yes"` + Int3 string `json:"3"` + IntBig1 string `json:"9007199254740993"` // 2^53 + 1 + IntBig2 string `json:"1000000000000000000000000000000000000"` + IntBig2Scientific string `json:"1e+36"` + Float3dot3 string `json:"3.3"` } -type UnmarshalNestedString struct { - A NestedString +type UnmarshalStruct struct { + A string `json:"a"` + B *string `json:"b"` + C string `json:"c"` } -type NestedString struct { - A string +type UnmarshalStringMap struct { + A map[string]string `json:"a"` } -type UnmarshalSlice struct { - A []NestedSlice +type UnmarshalNestedStruct struct { + A UnmarshalStruct `json:"a"` } -type NestedSlice struct { - B string - C *string +type UnmarshalSlice struct { + A []UnmarshalStruct `json:"a"` } -func TestUnmarshal(t *testing.T) { - y := []byte("a: 1") - s1 := UnmarshalString{} - e1 := UnmarshalString{A: "1"} - unmarshal(t, y, &s1, &e1) - - y = []byte("a: true") - s1 = UnmarshalString{} - e1 = UnmarshalString{A: "true"} - unmarshal(t, y, &s1, &e1) - - y = []byte("true: 1") - s1 = UnmarshalString{} - e1 = UnmarshalString{True: "1"} - unmarshal(t, y, &s1, &e1) - - y = []byte("a:\n a: 1") - s2 := UnmarshalNestedString{} - e2 := UnmarshalNestedString{NestedString{"1"}} - unmarshal(t, y, &s2, &e2) - - y = []byte("a:\n - b: abc\n c: def\n - b: 123\n c: 456\n") - s3 := UnmarshalSlice{} - e3 := UnmarshalSlice{[]NestedSlice{NestedSlice{"abc", strPtr("def")}, NestedSlice{"123", strPtr("456")}}} - unmarshal(t, y, &s3, &e3) - - y = []byte("a:\n b: 1") - s4 := UnmarshalStringMap{} - e4 := UnmarshalStringMap{map[string]string{"b": "1"}} - unmarshal(t, y, &s4, &e4) - - y = []byte(` -a: - name: TestA -b: - name: TestB -`) - type NamedThing struct { - Name string `json:"name"` - } - s5 := map[string]*NamedThing{} - e5 := map[string]*NamedThing{ - "a": &NamedThing{Name: "TestA"}, - "b": &NamedThing{Name: "TestB"}, - } - unmarshal(t, y, &s5, &e5) +type UnmarshalEmbedStruct struct { + UnmarshalStruct + B string `json:"b"` } -func unmarshal(t *testing.T, y []byte, s, e interface{}, opts ...JSONOpt) { - err := Unmarshal(y, s, opts...) - if err != nil { - t.Errorf("error unmarshaling YAML: %v", err) - } - - if !reflect.DeepEqual(s, e) { - t.Errorf("unmarshal YAML was unsuccessful, expected: %+#v, got: %+#v", - e, s) - } +type UnmarshalEmbedStructPointer struct { + *UnmarshalStruct + B string `json:"b"` } -func TestUnmarshalStrict(t *testing.T) { - y := []byte("a: 1") - s1 := UnmarshalString{} - e1 := UnmarshalString{A: "1"} - unmarshalStrict(t, y, &s1, &e1) - - y = []byte("a: true") - s1 = UnmarshalString{} - e1 = UnmarshalString{A: "true"} - unmarshalStrict(t, y, &s1, &e1) - - y = []byte("true: 1") - s1 = UnmarshalString{} - e1 = UnmarshalString{True: "1"} - unmarshalStrict(t, y, &s1, &e1) - - y = []byte("a:\n a: 1") - s2 := UnmarshalNestedString{} - e2 := UnmarshalNestedString{NestedString{"1"}} - unmarshalStrict(t, y, &s2, &e2) - - y = []byte("a:\n - b: abc\n c: def\n - b: 123\n c: 456\n") - s3 := UnmarshalSlice{} - e3 := UnmarshalSlice{[]NestedSlice{NestedSlice{"abc", strPtr("def")}, NestedSlice{"123", strPtr("456")}}} - unmarshalStrict(t, y, &s3, &e3) - - y = []byte("a:\n b: 1") - s4 := UnmarshalStringMap{} - e4 := UnmarshalStringMap{map[string]string{"b": "1"}} - unmarshalStrict(t, y, &s4, &e4) - - y = []byte(` -a: - name: TestA -b: - name: TestB -`) - type NamedThing struct { - Name string `json:"name"` - } - s5 := map[string]*NamedThing{} - e5 := map[string]*NamedThing{ - "a": &NamedThing{Name: "TestA"}, - "b": &NamedThing{Name: "TestB"}, - } - unmarshal(t, y, &s5, &e5) - - // When using not-so-strict unmarshal, we should - // be picking up the ID-1 as the value in the "id" field - y = []byte(` -a: - name: TestA - id: ID-A - id: ID-1 -`) - type NamedThing2 struct { - Name string `json:"name"` - ID string `json:"id"` - } - s6 := map[string]*NamedThing2{} - e6 := map[string]*NamedThing2{ - "a": {Name: "TestA", ID: "ID-1"}, - } - unmarshal(t, y, &s6, &e6) +type UnmarshalEmbedRecursiveStruct struct { + *UnmarshalEmbedRecursiveStruct `json:"a"` + B string `json:"b"` } -func TestUnmarshalStrictFails(t *testing.T) { - y := []byte("a: true\na: false") - s1 := UnmarshalString{} - unmarshalStrictFail(t, y, &s1) +func TestUnmarshal(t *testing.T) { + tests := map[string]unmarshalTestCase{ + // casematched / non-casematched untagged keys + "untagged casematched string key": { + encoded: []byte("A: test"), + decodeInto: new(UnmarshalUntaggedStruct), + decoded: UnmarshalUntaggedStruct{A: "test"}, + }, + "untagged non-casematched string key": { + encoded: []byte("a: test"), + decodeInto: new(UnmarshalUntaggedStruct), + decoded: UnmarshalUntaggedStruct{A: "test"}, + }, + "untagged casematched boolean key": { + encoded: []byte("True: test"), + decodeInto: new(UnmarshalUntaggedStruct), + decoded: UnmarshalUntaggedStruct{True: "test"}, + }, + "untagged non-casematched boolean key": { + encoded: []byte("true: test"), + decodeInto: new(UnmarshalUntaggedStruct), + decoded: UnmarshalUntaggedStruct{True: "test"}, + }, - y = []byte("a:\n - b: abc\n c: 32\n b: 123") - s2 := UnmarshalSlice{} - unmarshalStrictFail(t, y, &s2) + // casematched / non-casematched tagged keys + "tagged casematched string key": { + encoded: []byte("A: test"), + decodeInto: new(UnmarshalTaggedStruct), + decoded: UnmarshalTaggedStruct{AUpper: "test"}, + }, + "tagged non-casematched string key": { + encoded: []byte("a: test"), + decodeInto: new(UnmarshalTaggedStruct), + decoded: UnmarshalTaggedStruct{ALower: "test"}, + }, + "tagged casematched boolean key": { + encoded: []byte("True: test"), + decodeInto: new(UnmarshalTaggedStruct), + decoded: UnmarshalTaggedStruct{TrueLower: "test"}, + }, + "tagged non-casematched boolean key": { + encoded: []byte("true: test"), + decodeInto: new(UnmarshalTaggedStruct), + decoded: UnmarshalTaggedStruct{TrueLower: "test"}, + }, + "tagged casematched boolean key (yes)": { + encoded: []byte("Yes: test"), + decodeInto: new(UnmarshalTaggedStruct), + decoded: UnmarshalTaggedStruct{TrueLower: "test"}, + }, + "tagged non-casematched boolean key (yes)": { + encoded: []byte("yes: test"), + decodeInto: new(UnmarshalTaggedStruct), + decoded: UnmarshalTaggedStruct{TrueLower: "test"}, + }, + "tagged integer key": { + encoded: []byte("3: test"), + decodeInto: new(UnmarshalTaggedStruct), + decoded: UnmarshalTaggedStruct{Int3: "test"}, + }, + "tagged big integer key 2^53 + 1": { + encoded: []byte("9007199254740993: test"), + decodeInto: new(UnmarshalTaggedStruct), + decoded: UnmarshalTaggedStruct{IntBig1: "test"}, + }, + "tagged big integer key 1000000000000000000000000000000000000": { + encoded: []byte("1000000000000000000000000000000000000: test"), + decodeInto: new(UnmarshalTaggedStruct), + decoded: UnmarshalTaggedStruct{IntBig2Scientific: "test"}, + }, + "tagged float key": { + encoded: []byte("3.3: test"), + decodeInto: new(UnmarshalTaggedStruct), + decoded: UnmarshalTaggedStruct{Float3dot3: "test"}, + }, - y = []byte("a:\n b: 1\n c: 3") - s3 := UnmarshalStringMap{} - unmarshalStrictFail(t, y, &s3) + // decode into string field + "string value into string field": { + encoded: []byte("a: test"), + decodeInto: new(UnmarshalStruct), + decoded: UnmarshalStruct{A: "test"}, + }, + "integer value into string field": { + encoded: []byte("a: 1"), + decodeInto: new(UnmarshalStruct), + decoded: UnmarshalStruct{A: "1"}, + }, + "boolean value into string field": { + encoded: []byte("a: true"), + decodeInto: new(UnmarshalStruct), + decoded: UnmarshalStruct{A: "true"}, + }, + "boolean value (no) into string field": { + encoded: []byte("a: no"), + decodeInto: new(UnmarshalStruct), + decoded: UnmarshalStruct{A: "false"}, + }, - type NamedThing struct { - Name string `json:"name"` - ID string `json:"id"` - } - // When using strict unmarshal, we should see - // the unmarshal fail if there are multiple keys - y = []byte(` -a: - name: TestA - id: ID-A - id: ID-1 -`) - s4 := NamedThing{} - unmarshalStrictFail(t, y, &s4) - - // Strict unmarshal should fail for unknown fields - y = []byte(` -name: TestB -id: ID-B -unknown: Some-Value -`) - s5 := NamedThing{} - unmarshalStrictFail(t, y, &s5) -} + // decode into complex fields + "decode into nested struct": { + encoded: []byte("a:\n a: 1"), + decodeInto: new(UnmarshalNestedStruct), + decoded: UnmarshalNestedStruct{UnmarshalStruct{A: "1"}}, + }, + "decode into slice": { + encoded: []byte("a:\n - a: abc\n b: def\n - a: 123"), + decodeInto: new(UnmarshalSlice), + decoded: UnmarshalSlice{[]UnmarshalStruct{{A: "abc", B: strPtr("def")}, {A: "123"}}}, + }, + "decode into string map": { + encoded: []byte("a:\n b: 1"), + decodeInto: new(UnmarshalStringMap), + decoded: UnmarshalStringMap{map[string]string{"b": "1"}}, + }, + "decode into struct pointer map": { + encoded: []byte("a:\n a: TestA\nb:\n a: TestB\n b: TestC"), + decodeInto: new(map[string]*UnmarshalStruct), + decoded: map[string]*UnmarshalStruct{ + "a": {A: "TestA"}, + "b": {A: "TestB", B: strPtr("TestC")}, + }, + }, -func unmarshalStrict(t *testing.T, y []byte, s, e interface{}, opts ...JSONOpt) { - err := UnmarshalStrict(y, s, opts...) - if err != nil { - t.Errorf("error unmarshaling YAML: %v", err) - } + // decoding into string map + "string map: decode string key": { + encoded: []byte("a:"), + decodeInto: new(map[string]struct{}), + decoded: map[string]struct{}{ + "a": {}, + }, + }, + "string map: decode boolean key": { + encoded: []byte("True:"), + decodeInto: new(map[string]struct{}), + decoded: map[string]struct{}{ + "true": {}, + }, + }, + "string map: decode boolean key (yes)": { + encoded: []byte("Yes:"), + decodeInto: new(map[string]struct{}), + decoded: map[string]struct{}{ + "true": {}, + }, + }, + "string map: decode integer key": { + encoded: []byte("44:"), + decodeInto: new(map[string]struct{}), + decoded: map[string]struct{}{ + "44": {}, + }, + }, + "string map: decode float key": { + encoded: []byte("444.444:"), + decodeInto: new(map[string]struct{}), + decoded: map[string]struct{}{ + "444.444": {}, + }, + }, - if !reflect.DeepEqual(s, e) { - t.Errorf("unmarshal YAML was unsuccessful, expected: %+#v, got: %+#v", - e, s) - } -} + // decoding integers + "decode 2^53 + 1 into int": { + encoded: []byte("9007199254740993"), + decodeInto: new(int), + decoded: 9007199254740993, + }, + "decode 2^53 + 1 into interface": { + encoded: []byte("9007199254740993"), + decodeInto: new(interface{}), + decoded: 9.007199254740992e+15, + }, -func unmarshalStrictFail(t *testing.T, y []byte, s interface{}, opts ...JSONOpt) { - err := UnmarshalStrict(y, s, opts...) - if err == nil { - t.Errorf("error unmarshaling YAML: %v", err) - } -} + // decode into interface + "float into interface": { + encoded: []byte("3.0"), + decodeInto: new(interface{}), + decoded: float64(3), + }, + "integer into interface": { + encoded: []byte("3"), + decodeInto: new(interface{}), + decoded: float64(3), + }, + "empty vs empty string into interface": { + encoded: []byte("a: \"\"\nb: \n"), + decodeInto: new(interface{}), + decoded: map[string]interface{}{ + "a": "", + "b": nil, + }, + }, -type Case struct { - input string - output string - // By default we test that reversing the output == input. But if there is a - // difference in the reversed output, you can optionally specify it here. - reverse *string -} + // duplicate (non-casematched) keys (NOTE: this is very non-ideal behaviour!) + "decode duplicate (non-casematched) into nested struct 1": { + encoded: []byte("a:\n a: 1\n b: 1\n c: test\n\nA:\n a: 2"), + decodeInto: new(UnmarshalNestedStruct), + decoded: UnmarshalNestedStruct{A: UnmarshalStruct{A: "1", B: strPtr("1"), C: "test"}}, + }, + "decode duplicate (non-casematched) into nested struct 2": { + encoded: []byte("A:\n a: 1\n b: 1\n c: test\na:\n a: 2"), + decodeInto: new(UnmarshalNestedStruct), + decoded: UnmarshalNestedStruct{A: UnmarshalStruct{A: "2", B: strPtr("1"), C: "test"}}, + }, + "decode duplicate (non-casematched) into nested slice 1": { + encoded: []byte("a:\n - a: abc\n b: def\nA:\n - a: 123"), + decodeInto: new(UnmarshalSlice), + decoded: UnmarshalSlice{[]UnmarshalStruct{{A: "abc", B: strPtr("def")}}}, + }, + "decode duplicate (non-casematched) into nested slice 2": { + encoded: []byte("A:\n - a: abc\n b: def\na:\n - a: 123"), + decodeInto: new(UnmarshalSlice), + decoded: UnmarshalSlice{[]UnmarshalStruct{{A: "123", B: strPtr("def")}}}, + }, + "decode duplicate (non-casematched) into nested string map 1": { + encoded: []byte("a:\n b: 1\nA:\n c: 1"), + decodeInto: new(UnmarshalStringMap), + decoded: UnmarshalStringMap{map[string]string{"b": "1", "c": "1"}}, + }, + "decode duplicate (non-casematched) into nested string map 2": { + encoded: []byte("A:\n b: 1\na:\n c: 1"), + decodeInto: new(UnmarshalStringMap), + decoded: UnmarshalStringMap{map[string]string{"b": "1", "c": "1"}}, + }, + "decode duplicate (non-casematched) into string map": { + encoded: []byte("a: test\nb: test\nA: test2"), + decodeInto: new(map[string]string), + decoded: map[string]string{ + "a": "test", + "A": "test2", + "b": "test", + }, + }, -type RunType int + // decoding embeded structs + "decode embeded struct": { + encoded: []byte("a: testA\nb: testB"), + decodeInto: new(UnmarshalEmbedStruct), + decoded: UnmarshalEmbedStruct{ + UnmarshalStruct: UnmarshalStruct{ + A: "testA", + }, + B: "testB", + }, + }, + "decode embeded structpointer": { + encoded: []byte("a: testA\nb: testB"), + decodeInto: new(UnmarshalEmbedStructPointer), + decoded: UnmarshalEmbedStructPointer{ + UnmarshalStruct: &UnmarshalStruct{ + A: "testA", + }, + B: "testB", + }, + }, + "decode recursive embeded structpointer": { + encoded: []byte("b: testB\na:\n b: testA"), + decodeInto: new(UnmarshalEmbedRecursiveStruct), + decoded: UnmarshalEmbedRecursiveStruct{ + UnmarshalEmbedRecursiveStruct: &UnmarshalEmbedRecursiveStruct{ + B: "testA", + }, + B: "testB", + }, + }, -const ( - RunTypeJSONToYAML RunType = iota - RunTypeYAMLToJSON -) + // BUG: type info gets lost (#58) + "decode embeded struct and cast integer to string": { + encoded: []byte("a: 11\nb: testB"), + decodeInto: new(UnmarshalEmbedStruct), + decoded: UnmarshalEmbedStruct{ + UnmarshalStruct: UnmarshalStruct{ + A: "11", + }, + B: "testB", + }, + err: fatalErrorsType, + }, + "decode embeded structpointer and cast integer to string": { + encoded: []byte("a: 11\nb: testB"), + decodeInto: new(UnmarshalEmbedStructPointer), + decoded: UnmarshalEmbedStructPointer{ + UnmarshalStruct: &UnmarshalStruct{ + A: "11", + }, + B: "testB", + }, + err: fatalErrorsType, + }, -func TestJSONToYAML(t *testing.T) { - cases := []Case{ - { - `{"t":"a"}`, - "t: a\n", - nil, - }, { - `{"t":null}`, - "t: null\n", - nil, - }, { - `{"t":"this is very long line with spaces and it must be longer than 80 so we will repeat that it must be longer that 80"}`, - "t: this is very long line with spaces and it must be longer than 80 so we will repeat\n that it must be longer that 80\n", - nil, + // decoding into incompatible type + "decode into stringmap with incompatible type": { + encoded: []byte("a:\n a:\n a: 3"), + decodeInto: new(UnmarshalStringMap), + err: fatalErrorsType, }, } - runCases(t, RunTypeJSONToYAML, cases) + t.Run("Unmarshal", func(t *testing.T) { + testUnmarshal(t, funcUnmarshal, tests) + }) + + t.Run("UnmarshalStrict", func(t *testing.T) { + testUnmarshal(t, funcUnmarshalStrict, tests) + }) } -func TestYAMLToJSON(t *testing.T) { - cases := []Case{ - { - "t: a\n", - `{"t":"a"}`, - nil, - }, { - "t: \n", - `{"t":null}`, - strPtr("t: null\n"), - }, { - "t: null\n", - `{"t":null}`, - nil, - }, { - "1: a\n", - `{"1":"a"}`, - strPtr("\"1\": a\n"), - }, { - "1000000000000000000000000000000000000: a\n", - `{"1e+36":"a"}`, - strPtr("\"1e+36\": a\n"), - }, { - "1e+36: a\n", - `{"1e+36":"a"}`, - strPtr("\"1e+36\": a\n"), - }, { - "\"1e+36\": a\n", - `{"1e+36":"a"}`, - nil, - }, { - "\"1.2\": a\n", - `{"1.2":"a"}`, - nil, - }, { - "- t: a\n", - `[{"t":"a"}]`, - nil, - }, { - "- t: a\n" + - "- t:\n" + - " b: 1\n" + - " c: 2\n", - `[{"t":"a"},{"t":{"b":1,"c":2}}]`, - nil, - }, { - `[{t: a}, {t: {b: 1, c: 2}}]`, - `[{"t":"a"},{"t":{"b":1,"c":2}}]`, - strPtr("- t: a\n" + - "- t:\n" + - " b: 1\n" + - " c: 2\n"), - }, { - "- t: \n", - `[{"t":null}]`, - strPtr("- t: null\n"), - }, { - "- t: null\n", - `[{"t":null}]`, - nil, +func TestUnmarshalStrictFails(t *testing.T) { + tests := map[string]unmarshalTestCase{ + // decoding with duplicate values + "decode into struct pointer map with duplicate string value": { + encoded: []byte("a:\n a: TestA\n b: ID-A\n b: ID-1"), + decodeInto: new(map[string]*UnmarshalStruct), + decoded: map[string]*UnmarshalStruct{ + "a": {A: "TestA", B: strPtr("ID-1")}, + }, }, - } - - // Cases that should produce errors. - _ = []Case{ - { - "~: a", - `{"null":"a"}`, - nil, - }, { - "a: !!binary gIGC\n", - "{\"a\":\"\x80\x81\x82\"}", - nil, + "decode into string field with duplicate boolean value": { + encoded: []byte("a: true\na: false"), + decodeInto: new(UnmarshalStruct), + decoded: UnmarshalStruct{A: "false"}, + }, + "decode into slice with duplicate string-boolean value": { + encoded: []byte("a:\n- b: abc\n a: 32\n b: 123"), + decodeInto: new(UnmarshalSlice), + decoded: UnmarshalSlice{[]UnmarshalStruct{{A: "32", B: strPtr("123")}}}, }, - } - runCases(t, RunTypeYAMLToJSON, cases) -} + // decoding with unknown fields + "decode into struct with unknown field": { + encoded: []byte("a: TestB\nb: ID-B\nunknown: Some-Value"), + decodeInto: new(UnmarshalStruct), + decoded: UnmarshalStruct{A: "TestB", B: strPtr("ID-B")}, + }, -func runCases(t *testing.T, runType RunType, cases []Case) { - var f func([]byte) ([]byte, error) - var invF func([]byte) ([]byte, error) - var msg string - var invMsg string - if runType == RunTypeJSONToYAML { - f = JSONToYAML - invF = YAMLToJSON - msg = "JSON to YAML" - invMsg = "YAML back to JSON" - } else { - f = YAMLToJSON - invF = JSONToYAML - msg = "YAML to JSON" - invMsg = "JSON back to YAML" + // decoding with duplicate complex values + "decode duplicate into nested struct": { + encoded: []byte("a:\n a: 1\na:\n a: 2"), + decodeInto: new(UnmarshalNestedStruct), + decoded: UnmarshalNestedStruct{A: UnmarshalStruct{A: "2"}}, + }, + "decode duplicate into nested slice": { + encoded: []byte("a:\n - a: abc\n b: def\na:\n - a: 123"), + decodeInto: new(UnmarshalSlice), + decoded: UnmarshalSlice{[]UnmarshalStruct{{A: "123"}}}, + }, + "decode duplicate into nested string map": { + encoded: []byte("a:\n b: 1\na:\n c: 1"), + decodeInto: new(UnmarshalStringMap), + decoded: UnmarshalStringMap{map[string]string{"c": "1"}}, + }, + "decode duplicate into string map": { + encoded: []byte("a: test\nb: test\na: test2"), + decodeInto: new(map[string]string), + decoded: map[string]string{ + "a": "test2", + "b": "test", + }, + }, } - for _, c := range cases { - // Convert the string. - t.Logf("converting %s\n", c.input) - output, err := f([]byte(c.input)) - if err != nil { - t.Errorf("Failed to convert %s, input: `%s`, err: %v", msg, c.input, err) - } - - // Check it against the expected output. - if string(output) != c.output { - t.Errorf("Failed to convert %s, input: `%s`, expected `%s`, got `%s`", - msg, c.input, c.output, string(output)) - } + t.Run("Unmarshal", func(t *testing.T) { + testUnmarshal(t, funcUnmarshal, tests) + }) - // Set the string that we will compare the reversed output to. - reverse := c.input - // If a special reverse string was specified, use that instead. - if c.reverse != nil { - reverse = *c.reverse + t.Run("UnmarshalStrict", func(t *testing.T) { + failTests := map[string]unmarshalTestCase{} + for name, test := range tests { + test.err = fatalErrorsType + failTests[name] = test } + testUnmarshal(t, funcUnmarshalStrict, failTests) + }) +} - // Reverse the output. - input, err := invF(output) - if err != nil { - t.Errorf("Failed to convert %s, input: `%s`, err: %v", invMsg, string(output), err) - } +func TestYAMLToJSON(t *testing.T) { + tests := map[string]yamlToJSONTestcase{ + "string value": { + yaml: "t: a\n", + json: `{"t":"a"}`, + }, + "null value": { + yaml: "t: null\n", + json: `{"t":null}`, + }, + "boolean value": { + yaml: "t: True\n", + json: `{"t":true}`, + yaml_reverse_overwrite: strPtr("t: true\n"), + }, + "boolean value (no)": { + yaml: "t: no\n", + json: `{"t":false}`, + yaml_reverse_overwrite: strPtr("t: false\n"), + }, + "integer value (2^53 + 1)": { + yaml: "t: 9007199254740993\n", + json: `{"t":9007199254740993}`, + yaml_reverse_overwrite: strPtr("t: 9007199254740993\n"), + }, + "integer value (1000000000000000000000000000000000000)": { + yaml: "t: 1000000000000000000000000000000000000\n", + json: `{"t":1e+36}`, + yaml_reverse_overwrite: strPtr("t: 1e+36\n"), + }, + "line-wrapped string value": { + yaml: "t: this is very long line with spaces and it must be longer than 80 so we will repeat\n that it must be longer that 80\n", + json: `{"t":"this is very long line with spaces and it must be longer than 80 so we will repeat that it must be longer that 80"}`, + }, + "empty yaml value": { + yaml: "t: ", + json: `{"t":null}`, + yaml_reverse_overwrite: strPtr("t: null\n"), + }, + "boolean key": { + yaml: "True: a", + json: `{"true":"a"}`, + yaml_reverse_overwrite: strPtr("\"true\": a\n"), + }, + "boolean key (no)": { + yaml: "no: a", + json: `{"false":"a"}`, + yaml_reverse_overwrite: strPtr("\"false\": a\n"), + }, + "integer key": { + yaml: "1: a", + json: `{"1":"a"}`, + yaml_reverse_overwrite: strPtr("\"1\": a\n"), + }, + "float key": { + yaml: "1.2: a", + json: `{"1.2":"a"}`, + yaml_reverse_overwrite: strPtr("\"1.2\": a\n"), + }, + "large integer key": { + yaml: "1000000000000000000000000000000000000: a", + json: `{"1e+36":"a"}`, + yaml_reverse_overwrite: strPtr("\"1e+36\": a\n"), + }, + "large integer key (scientific notation)": { + yaml: "1e+36: a", + json: `{"1e+36":"a"}`, + yaml_reverse_overwrite: strPtr("\"1e+36\": a\n"), + }, + "string key (large integer as string)": { + yaml: "\"1e+36\": a\n", + json: `{"1e+36":"a"}`, + }, + "string key (float as string)": { + yaml: "\"1.2\": a\n", + json: `{"1.2":"a"}`, + }, + "array": { + yaml: "- t: a\n", + json: `[{"t":"a"}]`, + }, + "nested struct array": { + yaml: "- t: a\n- t:\n b: 1\n c: 2\n", + json: `[{"t":"a"},{"t":{"b":1,"c":2}}]`, + }, + "nested struct array (json notation)": { + yaml: `[{t: a}, {t: {b: 1, c: 2}}]`, + json: `[{"t":"a"},{"t":{"b":1,"c":2}}]`, + yaml_reverse_overwrite: strPtr("- t: a\n- t:\n b: 1\n c: 2\n"), + }, + "empty struct value": { + yaml: "- t: ", + json: `[{"t":null}]`, + yaml_reverse_overwrite: strPtr("- t: null\n"), + }, + "null struct value": { + yaml: "- t: null\n", + json: `[{"t":null}]`, + }, + "binary data": { + yaml: "a: !!binary gIGC", + json: `{"a":"\ufffd\ufffd\ufffd"}`, + yaml_reverse_overwrite: strPtr("a: \ufffd\ufffd\ufffd\n"), + }, - // Check the reverse is equal to the input (or to *c.reverse). - if string(input) != reverse { - t.Errorf("Failed to convert %s, input: `%s`, expected `%s`, got `%s`", - invMsg, string(output), reverse, string(input)) - } + // Cases that should produce errors. + "~ key": { + yaml: "~: a", + json: `{"null":"a"}`, + yaml_reverse_overwrite: strPtr("\"null\": a\n"), + err: fatalErrorsType, + }, + "null key": { + yaml: "null: a", + json: `{"null":"a"}`, + yaml_reverse_overwrite: strPtr("\"null\": a\n"), + err: fatalErrorsType, + }, } -} + t.Run("YAMLToJSON", func(t *testing.T) { + testYAMLToJSON(t, funcYAMLToJSON, tests) + }) -// To be able to easily fill in the *Case.reverse string above. -func strPtr(s string) *string { - return &s + t.Run("YAMLToJSONStrict", func(t *testing.T) { + testYAMLToJSON(t, funcYAMLToJSONStrict, tests) + }) } -func TestYAMLToJSONStrict(t *testing.T) { - const data = ` -foo: bar -foo: baz -` - if _, err := YAMLToJSON([]byte(data)); err != nil { - t.Error("expected YAMLtoJSON to pass on duplicate field names") - } - if _, err := YAMLToJSONStrict([]byte(data)); err == nil { - t.Error("expected YAMLtoJSONStrict to fail on duplicate field names") +func TestYAMLToJSONStrictFails(t *testing.T) { + tests := map[string]yamlToJSONTestcase{ + // expect YAMLtoJSON to pass on duplicate field names + "duplicate struct value": { + yaml: "foo: bar\nfoo: baz\n", + json: `{"foo":"baz"}`, + yaml_reverse_overwrite: strPtr("foo: baz\n"), + }, } + + t.Run("YAMLToJSON", func(t *testing.T) { + testYAMLToJSON(t, funcYAMLToJSON, tests) + }) + + t.Run("YAMLToJSONStrict", func(t *testing.T) { + failTests := map[string]yamlToJSONTestcase{} + for name, test := range tests { + test.err = fatalErrorsType + failTests[name] = test + } + testYAMLToJSON(t, funcYAMLToJSONStrict, failTests) + }) } func TestJSONObjectToYAMLObject(t *testing.T) {