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" Vim syntax file
" Language: JSON
" Maintainer: Eli Parra <eli@elzr.com>
" Last Change: 2014 Aug 23
" Version: 0.12
if !exists("main_syntax")
" quit when a syntax file was already loaded
if exists("b:current_syntax")
finish
endif
let main_syntax = 'json'
endif
syntax match jsonNoise /\%(:\|,\)/
" NOTE that for the concealing to work your conceallevel should be set to 2
" Syntax: Strings
" Separated into a match and region because a region by itself is always greedy
syn match jsonStringMatch /"\([^"]\|\\\"\)\+"\ze[[:blank:]\r\n]*[,}\]]/ contains=jsonString
if has('conceal')
syn region jsonString oneline matchgroup=jsonQuote start=/"/ skip=/\\\\\|\\"/ end=/"/ concealends contains=jsonEscape contained
else
syn region jsonString oneline matchgroup=jsonQuote start=/"/ skip=/\\\\\|\\"/ end=/"/ contains=jsonEscape contained
endif
" Syntax: JSON does not allow strings with single quotes, unlike JavaScript.
syn region jsonStringSQError oneline start=+'+ skip=+\\\\\|\\"+ end=+'+
" Syntax: JSON Keywords
" Separated into a match and region because a region by itself is always greedy
syn match jsonKeywordMatch /"\([^"]\|\\\"\)\+"[[:blank:]\r\n]*\:/ contains=jsonKeyword
if has('conceal')
syn region jsonKeyword matchgroup=jsonQuote start=/"/ end=/"\ze[[:blank:]\r\n]*\:/ concealends contained
else
syn region jsonKeyword matchgroup=jsonQuote start=/"/ end=/"\ze[[:blank:]\r\n]*\:/ contained
endif
" Syntax: Escape sequences
syn match jsonEscape "\\["\\/bfnrt]" contained
syn match jsonEscape "\\u\x\{4}" contained
" Syntax: Numbers
syn match jsonNumber "-\=\<\%(0\|[1-9]\d*\)\%(\.\d\+\)\=\%([eE][-+]\=\d\+\)\=\>\ze[[:blank:]\r\n]*[,}\]]"
" ERROR WARNINGS **********************************************
if (!exists("g:vim_json_warnings") || g:vim_json_warnings==1)
" Syntax: Strings should always be enclosed with quotes.
syn match jsonNoQuotesError "\<[[:alpha:]][[:alnum:]]*\>"
syn match jsonTripleQuotesError /"""/
" Syntax: An integer part of 0 followed by other digits is not allowed.
syn match jsonNumError "-\=\<0\d\.\d*\>"
" Syntax: Decimals smaller than one should begin with 0 (so .1 should be 0.1).
syn match jsonNumError "\:\@<=[[:blank:]\r\n]*\zs\.\d\+"
" Syntax: No comments in JSON, see http://stackoverflow.com/questions/244777/can-i-comment-a-json-file
syn match jsonCommentError "//.*"
syn match jsonCommentError "\(/\*\)\|\(\*/\)"
" Syntax: No semicolons in JSON
syn match jsonSemicolonError ";"
" Syntax: No trailing comma after the last element of arrays or objects
syn match jsonTrailingCommaError ",\_s*[}\]]"
" Syntax: Watch out for missing commas between elements
syn match jsonMissingCommaError /\("\|\]\|\d\)\zs\_s\+\ze"/
syn match jsonMissingCommaError /\(\]\|\}\)\_s\+\ze"/ "arrays/objects as values
syn match jsonMissingCommaError /}\_s\+\ze{/ "objects as elements in an array
syn match jsonMissingCommaError /\(true\|false\)\_s\+\ze"/ "true/false as value
endif
" ********************************************** END OF ERROR WARNINGS
" Allowances for JSONP: function call at the beginning of the file,
" parenthesis and semicolon at the end.
" Function name validation based on
" http://stackoverflow.com/questions/2008279/validate-a-javascript-function-name/2008444#2008444
syn match jsonPadding "\%^[[:blank:]\r\n]*[_$[:alpha:]][_$[:alnum:]]*[[:blank:]\r\n]*("
syn match jsonPadding ");[[:blank:]\r\n]*\%$"
" Syntax: Boolean
syn match jsonBoolean /\(true\|false\)\(\_s\+\ze"\)\@!/
" Syntax: Null
syn keyword jsonNull null
" Syntax: Braces
syn region jsonFold matchgroup=jsonBraces start="{" end=/}\(\_s\+\ze\("\|{\)\)\@!/ transparent fold
syn region jsonFold matchgroup=jsonBraces start="\[" end=/]\(\_s\+\ze"\)\@!/ transparent fold
" Define the default highlighting.
" Only when an item doesn't have highlighting yet
hi def link jsonPadding Operator
hi def link jsonString String
hi def link jsonTest Label
hi def link jsonEscape Special
hi def link jsonNumber Number
hi def link jsonBraces Delimiter
hi def link jsonNull Function
hi def link jsonBoolean Boolean
hi def link jsonKeyword Label
if (!exists("g:vim_json_warnings") || g:vim_json_warnings==1)
hi def link jsonNumError Error
hi def link jsonCommentError Error
hi def link jsonSemicolonError Error
hi def link jsonTrailingCommaError Error
hi def link jsonMissingCommaError Error
hi def link jsonStringSQError Error
hi def link jsonNoQuotesError Error
hi def link jsonTripleQuotesError Error
endif
hi def link jsonQuote Quote
hi def link jsonNoise Noise
let b:current_syntax = "json"
if main_syntax == 'json'
unlet main_syntax
endif
" Vim settings
" vim: ts=8 fdm=marker
" MIT License
" Copyright (c) 2013, Jeroen Ruigrok van der Werven, Eli Parra
"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.
"See https://twitter.com/elzr/status/294964017926119424