Edit: json.vim
" 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
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