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- (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));
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