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