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Merge pull request #60 from moul/dev/moul/isascii
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feat: add u.IsASCII
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@moul
moul authored Jul 1, 2021
2 parents 5cccf8f + aa23d54 commit 0c2188f
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Showing 3 changed files with 78 additions and 53 deletions.
110 changes: 57 additions & 53 deletions README.md
View file
Original file line number Diff line number Diff line change
Expand Up @@ -85,6 +85,9 @@ func Future(fn func() (interface{}, error)) <-chan FutureRet
Future starts running the given function in background and return a chan
that will return the result of the execution.
func IsASCII(buf []byte) bool
IsASCII checks whether a buffer only contains ASCII characters.
func IsBinary(buf []byte) bool
IsBinary returns whether the provided buffer looks like binary or
human-readable.
Expand Down Expand Up @@ -215,59 +218,60 @@ $ go get moul.io/u

[embedmd]:# (.tmp/bench.txt txt)
```txt
benchmark iter time/iter
--------- ---- ---------
BenchmarkUnzip-12 3919 262998.00 ns/op
BenchmarkUnzipBytes-12 4461 249418.00 ns/op
BenchmarkB64Encode/1-12 15309999 82.28 ns/op
BenchmarkB64Encode/1-parallel-12 66409862 15.98 ns/op
BenchmarkB64Encode/1000-12 356790 4955.00 ns/op
BenchmarkB64Encode/1000-parallel-12 1349776 839.50 ns/op
BenchmarkB64Encode/1000000-12 296 4421480.00 ns/op
BenchmarkB64Encode/1000000-parallel-12 1935 562698.00 ns/op
BenchmarkB64Decode/1000-12 358122 3997.00 ns/op
BenchmarkB64Decode/1000-parallel-12 1674694 688.20 ns/op
BenchmarkB64Decode/10000-12 35721 36986.00 ns/op
BenchmarkB64Decode/10000-parallel-12 186091 5815.00 ns/op
BenchmarkB64Decode/100000-12 5961 342365.00 ns/op
BenchmarkB64Decode/100000-parallel-12 25243 46691.00 ns/op
BenchmarkIsBinary/small-valid-12 130751559 9.20 ns/op
BenchmarkIsBinary/small-valid-parallel-12 721446243 1.43 ns/op
BenchmarkIsBinary/long-valid-12 5305724 232.00 ns/op
BenchmarkIsBinary/long-valid-parallel-12 25722481 39.80 ns/op
BenchmarkIsBinary/small-invalid-12 135880948 8.99 ns/op
BenchmarkIsBinary/small-invalid-parallel-12 763902718 1.55 ns/op
BenchmarkCommandExists/go-12 111031 10957.00 ns/op
BenchmarkCommandExists/go-parallel-12 718045 1587.00 ns/op
BenchmarkCommandExists/asddsa-12 24708 57858.00 ns/op
BenchmarkCommandExists/asddsa-parallel-12 130980 8246.00 ns/op
BenchmarkSafeExec-12 690 2308535.00 ns/op
BenchmarkCombineFuncs-12 5793744 203.80 ns/op
BenchmarkFuture-12 1492561 789.80 ns/op
BenchmarkRandomLetters/1000-12 326869 4196.00 ns/op
BenchmarkRandomLetters/1000-parallel-12 37795 30892.00 ns/op
BenchmarkRandomLetters/10000-12 29838 41700.00 ns/op
BenchmarkRandomLetters/10000-parallel-12 3884 305148.00 ns/op
BenchmarkRandomLetters/100000-12 2571 400259.00 ns/op
BenchmarkRandomLetters/100000-parallel-12 386 2972860.00 ns/op
BenchmarkUniqueStrings/slice1-12 942453 1435.00 ns/op
BenchmarkUniqueStrings/slice1-parallel-12 4134234 273.10 ns/op
BenchmarkUniqueStrings/slice2-12 8259 261283.00 ns/op
BenchmarkUniqueStrings/slice2-parallel-12 21670 56012.00 ns/op
BenchmarkUniqueInts/slice1-12 1523756 843.80 ns/op
BenchmarkUniqueInts/slice1-parallel-12 7665976 133.00 ns/op
BenchmarkUniqueInts/slice2-12 10000 159122.00 ns/op
BenchmarkUniqueInts/slice2-parallel-12 61369 17542.00 ns/op
BenchmarkUniqueInterfaces/slice1-12 1000000 1743.00 ns/op
BenchmarkUniqueInterfaces/slice1-parallel-12 3386178 337.70 ns/op
BenchmarkUniqueInterfaces/slice2-12 2461 585875.00 ns/op
BenchmarkUniqueInterfaces/slice2-parallel-12 8068 131634.00 ns/op
BenchmarkShortDuration/Simple-12 14830498 92.78 ns/op
BenchmarkShortDuration/Simple-parallel-12 61034352 17.06 ns/op
BenchmarkShortDuration/Complex-12 2587477 504.30 ns/op
BenchmarkShortDuration/Complex-parallel-12 8923653 123.70 ns/op
BenchmarkBoolPtr/serial-12 1000000000 0.43 ns/op
BenchmarkBoolPtr/parallel-12 1000000000 0.33 ns/op
benchmark iter time/iter
--------- ---- ---------
BenchmarkUnzip-8 4101 251654.00 ns/op
BenchmarkUnzipBytes-8 4842 213715.00 ns/op
BenchmarkB64Encode/1-8 30219784 38.44 ns/op
BenchmarkB64Encode/1-parallel-8 120309013 10.42 ns/op
BenchmarkB64Encode/1000-8 962917 1256.00 ns/op
BenchmarkB64Encode/1000-parallel-8 1627962 815.00 ns/op
BenchmarkB64Encode/1000000-8 1094 1092692.00 ns/op
BenchmarkB64Encode/1000000-parallel-8 3328 364672.00 ns/op
BenchmarkB64Decode/1000-8 1000000 1091.00 ns/op
BenchmarkB64Decode/1000-parallel-8 1971834 598.80 ns/op
BenchmarkB64Decode/10000-8 131664 8624.00 ns/op
BenchmarkB64Decode/10000-parallel-8 274162 4768.00 ns/op
BenchmarkB64Decode/100000-8 15345 77537.00 ns/op
BenchmarkB64Decode/100000-parallel-8 32480 34873.00 ns/op
BenchmarkIsBinary/small-valid-8 173952991 6.74 ns/op
BenchmarkIsBinary/small-valid-parallel-8 836416648 1.45 ns/op
BenchmarkIsBinary/long-valid-8 1916740 625.70 ns/op
BenchmarkIsBinary/long-valid-parallel-8 8315928 149.70 ns/op
BenchmarkIsBinary/small-invalid-8 170598688 7.08 ns/op
BenchmarkIsBinary/small-invalid-parallel-8 783116866 1.72 ns/op
BenchmarkCommandExists/go-8 145177 8699.00 ns/op
BenchmarkCommandExists/go-parallel-8 278449 4384.00 ns/op
BenchmarkCommandExists/asddsa-8 38422 32856.00 ns/op
BenchmarkCommandExists/asddsa-parallel-8 69381 18171.00 ns/op
BenchmarkSafeExec-8 92 11439103.00 ns/op
BenchmarkIsASCII-8 227565444 5.34 ns/op
BenchmarkCombineFuncs-8 23210830 52.56 ns/op
BenchmarkFuture-8 4820587 263.70 ns/op
BenchmarkRandomLetters/1000-8 783525 1572.00 ns/op
BenchmarkRandomLetters/1000-parallel-8 91543 12743.00 ns/op
BenchmarkRandomLetters/10000-8 81429 14677.00 ns/op
BenchmarkRandomLetters/10000-parallel-8 9618 127306.00 ns/op
BenchmarkRandomLetters/100000-8 8164 148755.00 ns/op
BenchmarkRandomLetters/100000-parallel-8 914 1299007.00 ns/op
BenchmarkUniqueStrings/slice1-8 2245912 553.70 ns/op
BenchmarkUniqueStrings/slice1-parallel-8 5644569 357.00 ns/op
BenchmarkUniqueStrings/slice2-8 9151 114607.00 ns/op
BenchmarkUniqueStrings/slice2-parallel-8 20236 55601.00 ns/op
BenchmarkUniqueInts/slice1-8 3188648 371.30 ns/op
BenchmarkUniqueInts/slice1-parallel-8 9704232 117.50 ns/op
BenchmarkUniqueInts/slice2-8 16548 66907.00 ns/op
BenchmarkUniqueInts/slice2-parallel-8 57608 21750.00 ns/op
BenchmarkUniqueInterfaces/slice1-8 1480366 962.20 ns/op
BenchmarkUniqueInterfaces/slice1-parallel-8 4402994 261.30 ns/op
BenchmarkUniqueInterfaces/slice2-8 4614 254938.00 ns/op
BenchmarkUniqueInterfaces/slice2-parallel-8 10000 125025.00 ns/op
BenchmarkShortDuration/Simple-8 23745075 47.64 ns/op
BenchmarkShortDuration/Simple-parallel-8 100000000 11.24 ns/op
BenchmarkShortDuration/Complex-8 4912780 231.40 ns/op
BenchmarkShortDuration/Complex-parallel-8 13411066 75.40 ns/op
BenchmarkBoolPtr/serial-8 1000000000 0.32 ns/op
BenchmarkBoolPtr/parallel-8 1000000000 0.28 ns/op
```

## Contribute
Expand Down
10 changes: 10 additions & 0 deletions encoding.go
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Original file line number Diff line number Diff line change
Expand Up @@ -16,6 +16,16 @@ func B64Decode(input string) ([]byte, error) {
return base64.StdEncoding.DecodeString(input)
}

// IsASCII checks whether a buffer only contains ASCII characters.
func IsASCII(buf []byte) bool {
for _, b := range buf {
if b > 0x7F {
return false
}
}
return true
}

// JSON returns a JSON representation of the passed input.
func JSON(input interface{}) string {
out, _ := json.Marshal(input)
Expand Down
11 changes: 11 additions & 0 deletions encoding_test.go
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Original file line number Diff line number Diff line change
Expand Up @@ -138,3 +138,14 @@ func BenchmarkIsBinary(b *testing.B) {
})
}
}

func ExampleIsASCII() {
fmt.Println(u.IsASCII([]byte("hello")))
// Output: true
}

func BenchmarkIsASCII(b *testing.B) {
for i := 0; i < b.N; i++ {
u.IsASCII([]byte("hello"))
}
}

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