hexo/node_modules/highlight.js/lib/languages/json.js

54 lines
1.3 KiB
JavaScript

/*
Language: JSON
Description: JSON (JavaScript Object Notation) is a lightweight data-interchange format.
Author: Ivan Sagalaev <maniac@softwaremaniacs.org>
Website: http://www.json.org
Category: common, protocols, web
*/
function json(hljs) {
const ATTRIBUTE = {
className: 'attr',
begin: /"(\\.|[^\\"\r\n])*"(?=\s*:)/,
relevance: 1.01
};
const PUNCTUATION = {
match: /[{}[\],:]/,
className: "punctuation",
relevance: 0
};
const LITERALS = [
"true",
"false",
"null"
];
// NOTE: normally we would rely on `keywords` for this but using a mode here allows us
// - to use the very tight `illegal: \S` rule later to flag any other character
// - as illegal indicating that despite looking like JSON we do not truly have
// - JSON and thus improve false-positively greatly since JSON will try and claim
// - all sorts of JSON looking stuff
const LITERALS_MODE = {
scope: "literal",
beginKeywords: LITERALS.join(" "),
};
return {
name: 'JSON',
keywords:{
literal: LITERALS,
},
contains: [
ATTRIBUTE,
PUNCTUATION,
hljs.QUOTE_STRING_MODE,
LITERALS_MODE,
hljs.C_NUMBER_MODE,
hljs.C_LINE_COMMENT_MODE,
hljs.C_BLOCK_COMMENT_MODE
],
illegal: '\\S'
};
}
module.exports = json;