TOML: new PEG based parser

This PEG parser is based on https://raw.githubusercontent.com/toml-lang/toml/1.0.0/toml.abnf

Tmain/list-roles.d/stdout-expected.txt

@@ -121,6 +121,7 @@ SystemdUnit    u/unit            RequiredBy         on      referred in Required
 SystemdUnit    u/unit            Requires           on      referred in Requires key
 SystemdUnit    u/unit            WantedBy           on      referred in WantedBy key
 SystemdUnit    u/unit            Wants              on      referred in Wants key
+TOML           k/key             chainElt           off     (EXPERIMENTAL)used as an element in a key name chain like a.b.c
 Terraform      v/variable        assigned           on      assigned in Variable Definitions (.tfvars) files
 Tex            e/environment     used               off     environment usage introduced by \begin{MyEnv}
 Tex            i/xinput          bibliography       on      bibliography (.bib) file
@@ -264,6 +265,7 @@ SystemdUnit    u/unit            RequiredBy         on      referred in Required
 SystemdUnit    u/unit            Requires           on      referred in Requires key
 SystemdUnit    u/unit            WantedBy           on      referred in WantedBy key
 SystemdUnit    u/unit            Wants              on      referred in Wants key
+TOML           k/key             chainElt           off     (EXPERIMENTAL)used as an element in a key name chain like a.b.c
 Terraform      v/variable        assigned           on      assigned in Variable Definitions (.tfvars) files
 Tex            e/environment     used               off     environment usage introduced by \begin{MyEnv}
 Tex            i/xinput          bibliography       on      bibliography (.bib) file

Units/parser-toml.r/simple.d/args.ctags

@@ -0,0 +1,2 @@
+--sort=no
+--fields=+K{nth}{end}{line}

Units/parser-toml.r/simple.d/expected.tags

@@ -0,0 +1,34 @@
+title	input.toml	/^title = "TOML Example"$/;"	qkey	line:5
+dog."tater.man"	input.toml	/^[dog."tater.man"]$/;"	table	line:7	end:10
+type.name	input.toml	/^type.name = "pug"$/;"	qkey	line:8	table:dog."tater.man"
+x	input.toml	/^x = 1$/;"	qkey	line:9	table:dog."tater.man"
+owner	input.toml	/^[owner]$/;"	table	line:11	end:14
+name	input.toml	/^name = "Tom Preston-Werner"$/;"	qkey	line:12	table:owner
+dob	input.toml	/^dob = 1979-05-27T07:32:00-08:00 # First class dates$/;"	qkey	line:13	table:owner
+database	input.toml	/^[database]$/;"	table	line:15	end:20
+server	input.toml	/^server = "192.168.1.1"$/;"	qkey	line:16	table:database
+ports	input.toml	/^ports = [ 8001, 8001, 8002 ]$/;"	qkey	line:17	table:database
+connection_max	input.toml	/^connection_max = 5000$/;"	qkey	line:18	table:database
+enabled	input.toml	/^enabled = true$/;"	qkey	line:19	table:database
+servers	input.toml	/^[servers]$/;"	table	line:21	end:23
+servers.alpha	input.toml	/^  [servers.alpha]$/;"	table	line:24	end:27
+ip	input.toml	/^  ip = "10.0.0.1"$/;"	qkey	line:25	table:servers.alpha
+dc	input.toml	/^  dc = "eqdc10"$/;"	qkey	line:26	table:servers.alpha
+servers.beta	input.toml	/^  [servers.beta]$/;"	table	line:28	end:31
+ip	input.toml	/^  ip = "10.0.0.2"$/;"	qkey	line:29	table:servers.beta
+dc	input.toml	/^  dc = "eqdc10"$/;"	qkey	line:30	table:servers.beta
+clients	input.toml	/^[clients]$/;"	table	line:32	end:40
+data	input.toml	/^data = [ ["gamma", "delta"], [1, 2] ]$/;"	qkey	line:33	table:clients
+hosts	input.toml	/^hosts = [$/;"	qkey	line:36	table:clients
+products	input.toml	/^[[products]] # 0$/;"	arraytable	line:41	end:44	nth:0
+name	input.toml	/^name = "Hammer"$/;"	qkey	line:42	arraytable:products
+sku	input.toml	/^sku = 738594937$/;"	qkey	line:43	arraytable:products
+products	input.toml	/^[[products]] # 1$/;"	arraytable	line:45	end:46	nth:1
+products	input.toml	/^[[products]] # 2$/;"	arraytable	line:47	end:50	nth:2
+name	input.toml	/^name = "Nail"$/;"	qkey	line:48	arraytable:products
+sku	input.toml	/^sku = 284758393$/;"	qkey	line:49	arraytable:products
+color	input.toml	/^color = "gray"$/;"	qkey	line:50	arraytable:products
+x	input-0.toml	/^[x]$/;"	table	line:1	end:4
+y	input-0.toml	/^y = 1$/;"	qkey	line:2	table:x
+""	input-0.toml	/^"" = 2$/;"	qkey	line:3	table:x
+''	input-0.toml	/^'' = 3$/;"	qkey	line:4	table:x

Units/parser-toml.r/simple.d/features

@@ -0,0 +1 @@
+packcc

Units/parser-toml.r/simple.d/input-0.toml

@@ -0,0 +1,4 @@
+[x]
+y = 1
+"" = 2
+'' = 3

Units/parser-toml.r/simple.d/input.toml

@@ -0,0 +1,50 @@
+## Taken from https://toml.io/en/v0.5.0#example
+
+# This is a TOML document.
+
+title = "TOML Example"
+
+[dog."tater.man"]
+type.name = "pug"
+x = 1
+
+[owner]
+name = "Tom Preston-Werner"
+dob = 1979-05-27T07:32:00-08:00 # First class dates
+
+[database]
+server = "192.168.1.1"
+ports = [ 8001, 8001, 8002 ]
+connection_max = 5000
+enabled = true
+
+[servers]
+
+  # Indentation (tabs and/or spaces) is allowed but not required
+  [servers.alpha]
+  ip = "10.0.0.1"
+  dc = "eqdc10"
+
+  [servers.beta]
+  ip = "10.0.0.2"
+  dc = "eqdc10"
+
+[clients]
+data = [ ["gamma", "delta"], [1, 2] ]
+
+# Line breaks are OK when inside arrays
+hosts = [
+  "alpha",
+  "omega"
+]
+
+[[products]] # 0
+name = "Hammer"
+sku = 738594937
+
+[[products]] # 1
+
+[[products]] # 2
+name = "Nail"
+sku = 284758393
+color = "gray"

docs/news/HEAD.rst

@@ -17,6 +17,8 @@ Parser related changes
 New parsers
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
+* TOML *peg/packcc*
+
 Changes about parser specific kinds, roles, fields, and extras
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 

main/parsers_p.h

@@ -43,7 +43,8 @@
 	VarlinkParser, \
 	KotlinParser,  \
 	ThriftParser,  \
-	ElmParser
+	ElmParser,     \
+	TomlParser
 #else
 #define PEG_PARSER_LIST
 #endif

peg/.gitignore

@@ -2,5 +2,6 @@ varlink.[ch]
 kotlin.[ch]
 thrift.[ch]
 elm.[ch]
+toml.[ch]
 
 *.pego