yaml: Add syntax file, version 20070822.

diff --git a/syntax/yaml.vim b/syntax/yaml.vim
new file mode 100644 (file)
index 0000000..cbf7f13
--- /dev/null
+++ b/syntax/yaml.vim
@@ -0,0 +1,109 @@
+" Vim syntax file
+" Language:     YAML
+" Maintainer:   motemen <motemen@gmail.com>
+" Version:     20070822
+
+syntax clear
+
+if !exists('g:yaml_syntax_highlight_numbers')
+    let g:yaml_syntax_highlight_numbers = 0
+endif
+
+syn match  yamlValue contained +\s*\%(#.*\)\?+ contains=yamlComment nextgroup=yamlType,yamlLabel,yamlFlowMap,yamlFlowSeq,yamlBool,yamlNull,yamlTextBlock,yamlString,yamlTimestamp,yamlInt,yamlFloat,yamlPlainString
+
+" Plain string
+syn match  yamlPlainString       contained +.\++
+syn match  yamlPlainStringInFlow contained +[^}\],]\++
+
+" Number
+if g:yaml_syntax_highlight_numbers
+    syn match  yamlInt contained /[-+]\?\%(0\|[1-9][0-9_]*\)\+\%(\.\|[0-9]\)\@!/
+    syn match  yamlInt contained /[-+]\?0b[0-1_]\+/
+    syn match  yamlInt contained /[-+]\?0[0-7_]\+/
+    syn match  yamlInt contained /[-+]\?0x[0-9a-fA-F_]\+/
+    syn match  yamlInt contained /[-+]\?[1-9][0-9_]*\%(:[0-5]\?[0-9]\)\+/
+    syn match  yamlFloat contained /[-+]\?\%([0-9][0-9_]*\)\?\.[0-9_]\+\%([eE][-+][0-9]\+\)\?\%(\.\|[0-9]\)\@!/
+    syn match  yamlFloat contained /[-+]\?[0-9][0-9_]*\%(:[0-5]\?[0-9]\)\+\.[0-9_]*/
+endif
+syn match  yamlFloat contained /[-+]\?\.\%(inf\|Inf\|INF\)\s*\%(#.*\)\?$/
+syn match  yamlFloat contained /\.\%(nan\|NaN\|NAN\)\s*\%(#.*\)\?$/
+
+" Timestamp
+syn match  yamlTimestamp contained /[0-9][0-9][0-9][0-9]-[0-9][0-9]-[0-9][0-9]/
+syn match  yamlTimestamp contained /[0-9][0-9][0-9][0-9]-[0-9][0-9]\?-[0-9][0-9]\?\%([Tt]\|[ \t]\+\)[0-9][0-9]\?:[0-9][0-9]:[0-9][0-9]\%(\.[0-9]*\)\?\%([ \t]*Z\|[-+][0-9][0-9]\?\%(:[0-9][0-9]\)\?\)\?/
+
+" Flow sequence
+syn region yamlFlowSeq matchgroup=Delimiter start=+\[+ end=+\]+ contains=yamlKeyInFlow,yamlQuotedKeyInFlow,yamlComma
+
+" Flow mapping
+syn region yamlFlowMap matchgroup=Delimiter start=+{+ end=+}+ contains=yamlKeyInFlow,yamlQuotedKeyInFlow,yamlComma
+
+" Flow mapping/sequence
+syn match  yamlComma +,+
+
+syn match  yamlKeyColonInFlow  contained +:+ nextgroup=yamlValueInFlow
+syn match  yamlValueInFlow     contained +\s*+ nextgroup=yamlTypeInFlow,yamlFlowMap,yamlFlowSeq,yamlConstant,yamlTextBlock,yamlString,yamlPlainStringInFlow
+syn match  yamlKeyInFlow       contained +[^,#'" ][^}\]]\{-}\ze:+ nextgroup=yamlKeyColonInFlow
+syn region yamlQuotedKeyInFlow contained matchgroup=String start=+"+rs=e skip=+\\"+ end=+"\s*\ze:+ contains=yamlEscape nextgroup=yamlKeyColonInFlow
+syn region yamlQuotedKeyInFlow contained matchgroup=String start=+'+rs=e skip=+''+  end=+'\s*\ze:+ contains=yamlSingleEscape nextgroup=yamlKeyColonInFlow
+
+" Block mapping
+syn match  yamlKeyColon  +:+ nextgroup=yamlValue
+syn match  yamlKey       +[^#'"{\[ ]\%(.\)\{-}\ze:\%( \|$\)+ nextgroup=yamlKeyColon
+syn region yamlQuotedKey matchgroup=String start=+"+rs=e skip=+\\"+ end=+"\s*\ze:+ contains=yamlEscape       nextgroup=yamlKeyColon
+syn region yamlQuotedKey matchgroup=String start=+'+rs=e skip=+''+  end=+'\s*\ze:+ contains=yamlSingleEscape nextgroup=yamlKeyColon
+syn region yamlKey matchgroup=Delimiter start=+?+ end=+:+rs=e-1 contains=yamlValue nextgroup=yamlKeyColon
+
+" Block sequence
+syn match  yamlSeqMark   +-\s*+ nextgroup=yamlValue,yamlKey
+
+" Label
+syn match  yamlLabel contained +[*&]\S\++
+
+" Comment
+syn keyword yamlTodo    contained TODO FIXME XXX NOTE
+syn match   yamlComment +#.*+ contains=yamlTodo
+syn region  yamlComment start=+^\.\.\.+ end=+\%$+ contains=yamlTodo
+
+" String
+syn region yamlString       contained start=+"+ skip=+\\"+ end=+"+ contains=yamlEscape
+syn region yamlString       contained start=+'+ skip=+''+  end=+'+ contains=yamlSingleEscape
+syn match  yamlEscape       contained +\\[\\"abefnrtv^0_ NLP]+
+syn match  yamlEscape       contained '\\x\x\{2}'
+syn match  yamlEscape       contained '\\u\x\{4}'
+syn match  yamlEscape       contained '\\U\x\{8}'
+syn match  yamlEscape       contained '\\\%(\r\n\|[\r\n]\)'
+syn match  yamlSingleEscape contained +''+
+
+" Type
+syn match  yamlType +!\S*+ nextgroup=yamlValue
+
+" Block style
+syn region yamlTextBlock start=/[|>][+-]\?\%([1-9]\d*\)\?\n\z\( \+\)/ end=/^\%(\z1\|$\)\@!/
+
+" Constant
+syn match  yamlBool     +\%(y\|Y\|yes\|Yes\|YES\|n\|N\|no\|No\|NO\|true\|True\|TRUE\|false\|False\|FALSE\|on\|On\|ON\|off\|Off\|OFF\)\ze\s*\%(#.*\)\?$+ contained
+syn match  yamlNull     +\%(null\|\~\)\ze\s*\%(#.*\)\?$+ contained
+
+" Directive
+syn match  yamlDirective +^%[^#]*\%(#.*\)\?$+ contains=yamlComment
+syn match  yamlDocHeader +^---\s*+
+
+highlight link yamlTodo            TODO
+highlight link yamlComment         Comment
+highlight link yamlKeyColon        Delimiter
+highlight link yamlKeyColonInFlow  Delimiter
+highlight link yamlSeqMark         Delimiter
+highlight link yamlKey             Identifier
+highlight link yamlQuotedKey       Identifier
+highlight link yamlKeyInFlow       Identifier
+highlight link yamlQuotedKeyInFlow Identifier
+highlight link yamlBool            Constant
+highlight link yamlNull            Constant
+highlight link yamlTextBlock       String
+highlight link yamlType            Type
+highlight link yamlDocHeader       Statement
+highlight link yamlDirective       PreProc
+highlight link yamlLabel           Label
+highlight link yamlInt             Number
+highlight link yamlFloat           Number