hexo/node_modules/prismjs/components/prism-yaml.js

84 lines
3.1 KiB
JavaScript

(function (Prism) {
// https://yaml.org/spec/1.2/spec.html#c-ns-anchor-property
// https://yaml.org/spec/1.2/spec.html#c-ns-alias-node
var anchorOrAlias = /[*&][^\s[\]{},]+/;
// https://yaml.org/spec/1.2/spec.html#c-ns-tag-property
var tag = /!(?:<[\w\-%#;/?:@&=+$,.!~*'()[\]]+>|(?:[a-zA-Z\d-]*!)?[\w\-%#;/?:@&=+$.~*'()]+)?/;
// https://yaml.org/spec/1.2/spec.html#c-ns-properties(n,c)
var properties = '(?:' + tag.source + '(?:[ \t]+' + anchorOrAlias.source + ')?|'
+ anchorOrAlias.source + '(?:[ \t]+' + tag.source + ')?)';
// https://yaml.org/spec/1.2/spec.html#ns-plain(n,c)
// This is a simplified version that doesn't support "#" and multiline keys
// All these long scarry character classes are simplified versions of YAML's characters
var plainKey = /(?:[^\s\x00-\x08\x0e-\x1f!"#%&'*,\-:>?@[\]`{|}\x7f-\x84\x86-\x9f\ud800-\udfff\ufffe\uffff]|[?:-]<PLAIN>)(?:[ \t]*(?:(?![#:])<PLAIN>|:<PLAIN>))*/.source
.replace(/<PLAIN>/g, function () { return /[^\s\x00-\x08\x0e-\x1f,[\]{}\x7f-\x84\x86-\x9f\ud800-\udfff\ufffe\uffff]/.source; });
var string = /"(?:[^"\\\r\n]|\\.)*"|'(?:[^'\\\r\n]|\\.)*'/.source;
/**
*
* @param {string} value
* @param {string} [flags]
* @returns {RegExp}
*/
function createValuePattern(value, flags) {
flags = (flags || '').replace(/m/g, '') + 'm'; // add m flag
var pattern = /([:\-,[{]\s*(?:\s<<prop>>[ \t]+)?)(?:<<value>>)(?=[ \t]*(?:$|,|\]|\}|(?:[\r\n]\s*)?#))/.source
.replace(/<<prop>>/g, function () { return properties; }).replace(/<<value>>/g, function () { return value; });
return RegExp(pattern, flags);
}
Prism.languages.yaml = {
'scalar': {
pattern: RegExp(/([\-:]\s*(?:\s<<prop>>[ \t]+)?[|>])[ \t]*(?:((?:\r?\n|\r)[ \t]+)\S[^\r\n]*(?:\2[^\r\n]+)*)/.source
.replace(/<<prop>>/g, function () { return properties; })),
lookbehind: true,
alias: 'string'
},
'comment': /#.*/,
'key': {
pattern: RegExp(/((?:^|[:\-,[{\r\n?])[ \t]*(?:<<prop>>[ \t]+)?)<<key>>(?=\s*:\s)/.source
.replace(/<<prop>>/g, function () { return properties; })
.replace(/<<key>>/g, function () { return '(?:' + plainKey + '|' + string + ')'; })),
lookbehind: true,
greedy: true,
alias: 'atrule'
},
'directive': {
pattern: /(^[ \t]*)%.+/m,
lookbehind: true,
alias: 'important'
},
'datetime': {
pattern: createValuePattern(/\d{4}-\d\d?-\d\d?(?:[tT]|[ \t]+)\d\d?:\d{2}:\d{2}(?:\.\d*)?(?:[ \t]*(?:Z|[-+]\d\d?(?::\d{2})?))?|\d{4}-\d{2}-\d{2}|\d\d?:\d{2}(?::\d{2}(?:\.\d*)?)?/.source),
lookbehind: true,
alias: 'number'
},
'boolean': {
pattern: createValuePattern(/false|true/.source, 'i'),
lookbehind: true,
alias: 'important'
},
'null': {
pattern: createValuePattern(/null|~/.source, 'i'),
lookbehind: true,
alias: 'important'
},
'string': {
pattern: createValuePattern(string),
lookbehind: true,
greedy: true
},
'number': {
pattern: createValuePattern(/[+-]?(?:0x[\da-f]+|0o[0-7]+|(?:\d+(?:\.\d*)?|\.\d+)(?:e[+-]?\d+)?|\.inf|\.nan)/.source, 'i'),
lookbehind: true
},
'tag': tag,
'important': anchorOrAlias,
'punctuation': /---|[:[\]{}\-,|>?]|\.\.\./
};
Prism.languages.yml = Prism.languages.yaml;
}(Prism));