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" Language: TOML
" Maintainer: Caleb Spare <cespare@gmail.com>
" URL: https://github.com/cespare/vim-toml
" LICENSE: MIT
if exists("b:current_syntax")
finish
endif
syn match tomlEscape /\\[btnfr"/\\]/ display contained
syn match tomlEscape /\\u\x\{4}/ contained
syn match tomlEscape /\\U\x\{8}/ contained
hi def link tomlEscape SpecialChar
syn match tomlLineEscape /\\$/ contained
hi def link tomlLineEscape SpecialChar
" Basic strings
syn region tomlString oneline start=/"/ skip=/\\\\\|\\"/ end=/"/ contains=tomlEscape
" Multi-line basic strings
syn region tomlString start=/"""/ end=/"""/ contains=tomlEscape,tomlLineEscape
" Literal strings
syn region tomlString oneline start=/'/ end=/'/
" Multi-line literal strings
syn region tomlString start=/'''/ end=/'''/
hi def link tomlString String
syn match tomlInteger /[+-]\=\<[1-9]\(_\=\d\)*\>/ display
syn match tomlInteger /[+-]\=\<0\>/ display
syn match tomlInteger /[+-]\=\<0x[[:xdigit:]]\(_\=[[:xdigit:]]\)*\>/ display
syn match tomlInteger /[+-]\=\<0o[0-7]\(_\=[0-7]\)*\>/ display
syn match tomlInteger /[+-]\=\<0b[01]\(_\=[01]\)*\>/ display
syn match tomlInteger /[+-]\=\<\(inf\|nan\)\>/ display
hi def link tomlInteger Number
syn match tomlFloat /[+-]\=\<\d\(_\=\d\)*\.\d\+\>/ display
syn match tomlFloat /[+-]\=\<\d\(_\=\d\)*\(\.\d\(_\=\d\)*\)\=[eE][+-]\=\d\(_\=\d\)*\>/ display
hi def link tomlFloat Float
syn match tomlBoolean /\<\%(true\|false\)\>/ display
hi def link tomlBoolean Boolean
" https://tools.ietf.org/html/rfc3339
syn match tomlDate /\d\{4\}-\d\{2\}-\d\{2\}/ display
syn match tomlDate /\d\{2\}:\d\{2\}:\d\{2\}\%(\.\d\+\)\?/ display
syn match tomlDate /\d\{4\}-\d\{2\}-\d\{2\}[T ]\d\{2\}:\d\{2\}:\d\{2\}\%(\.\d\+\)\?\%(Z\|[+-]\d\{2\}:\d\{2\}\)\?/ display
hi def link tomlDate Constant
syn match tomlKey /\v(^|[{,])\s*\zs[[:alnum:]._-]+\ze\s*\=/ display
hi def link tomlKey Identifier
syn region tomlKeyDq oneline start=/\v(^|[{,])\s*\zs"/ end=/"\ze\s*=/ contains=tomlEscape
hi def link tomlKeyDq Identifier
syn region tomlKeySq oneline start=/\v(^|[{,])\s*\zs'/ end=/'\ze\s*=/
hi def link tomlKeySq Identifier
syn region tomlTable oneline start=/^\s*\[[^\[]/ end=/\]/ contains=tomlKey,tomlKeyDq,tomlKeySq
hi def link tomlTable Title
syn region tomlTableArray oneline start=/^\s*\[\[/ end=/\]\]/ contains=tomlKey,tomlKeyDq,tomlKeySq
hi def link tomlTableArray Title
syn cluster tomlValue contains=tomlArray,tomlString,tomlInteger,tomlFloat,tomlBoolean,tomlDate,tomlComment
syn region tomlKeyValueArray start=/=\s*\[\zs/ end=/\]/ contains=@tomlValue
syn region tomlArray start=/\[/ end=/\]/ contains=@tomlValue contained
syn keyword tomlTodo TODO FIXME XXX BUG contained
hi def link tomlTodo Todo
syn match tomlComment /#.*/ contains=@Spell,tomlTodo
hi def link tomlComment Comment
syn sync minlines=500
let b:current_syntax = "toml"
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