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- Prism.languages.javascript = Prism.languages.extend('clike', {
- 'class-name': [
- Prism.languages.clike['class-name'],
- {
- pattern: /(^|[^$\w\xA0-\uFFFF])(?!\s)[_$A-Z\xA0-\uFFFF](?:(?!\s)[$\w\xA0-\uFFFF])*(?=\.(?:constructor|prototype))/,
- lookbehind: true
- }
- ],
- 'keyword': [
- {
- pattern: /((?:^|\})\s*)catch\b/,
- lookbehind: true
- },
- {
- pattern: /(^|[^.]|\.\.\.\s*)\b(?:as|assert(?=\s*\{)|async(?=\s*(?:function\b|\(|[$\w\xA0-\uFFFF]|$))|await|break|case|class|const|continue|debugger|default|delete|do|else|enum|export|extends|finally(?=\s*(?:\{|$))|for|from(?=\s*(?:['"]|$))|function|(?:get|set)(?=\s*(?:[#\[$\w\xA0-\uFFFF]|$))|if|implements|import|in|instanceof|interface|let|new|null|of|package|private|protected|public|return|static|super|switch|this|throw|try|typeof|undefined|var|void|while|with|yield)\b/,
- lookbehind: true
- },
- ],
- // Allow for all non-ASCII characters (See http://stackoverflow.com/a/2008444)
- 'function': /#?(?!\s)[_$a-zA-Z\xA0-\uFFFF](?:(?!\s)[$\w\xA0-\uFFFF])*(?=\s*(?:\.\s*(?:apply|bind|call)\s*)?\()/,
- 'number': {
- pattern: RegExp(
- /(^|[^\w$])/.source +
- '(?:' +
- (
- // constant
- /NaN|Infinity/.source +
- '|' +
- // binary integer
- /0[bB][01]+(?:_[01]+)*n?/.source +
- '|' +
- // octal integer
- /0[oO][0-7]+(?:_[0-7]+)*n?/.source +
- '|' +
- // hexadecimal integer
- /0[xX][\dA-Fa-f]+(?:_[\dA-Fa-f]+)*n?/.source +
- '|' +
- // decimal bigint
- /\d+(?:_\d+)*n/.source +
- '|' +
- // decimal number (integer or float) but no bigint
- /(?:\d+(?:_\d+)*(?:\.(?:\d+(?:_\d+)*)?)?|\.\d+(?:_\d+)*)(?:[Ee][+-]?\d+(?:_\d+)*)?/.source
- ) +
- ')' +
- /(?![\w$])/.source
- ),
- lookbehind: true
- },
- 'operator': /--|\+\+|\*\*=?|=>|&&=?|\|\|=?|[!=]==|<<=?|>>>?=?|[-+*/%&|^!=<>]=?|\.{3}|\?\?=?|\?\.?|[~:]/
- });
- Prism.languages.javascript['class-name'][0].pattern = /(\b(?:class|extends|implements|instanceof|interface|new)\s+)[\w.\\]+/;
- Prism.languages.insertBefore('javascript', 'keyword', {
- 'regex': {
- pattern: RegExp(
- // lookbehind
- // eslint-disable-next-line regexp/no-dupe-characters-character-class
- /((?:^|[^$\w\xA0-\uFFFF."'\])\s]|\b(?:return|yield))\s*)/.source +
- // Regex pattern:
- // There are 2 regex patterns here. The RegExp set notation proposal added support for nested character
- // classes if the `v` flag is present. Unfortunately, nested CCs are both context-free and incompatible
- // with the only syntax, so we have to define 2 different regex patterns.
- /\//.source +
- '(?:' +
- /(?:\[(?:[^\]\\\r\n]|\\.)*\]|\\.|[^/\\\[\r\n])+\/[dgimyus]{0,7}/.source +
- '|' +
- // `v` flag syntax. This supports 3 levels of nested character classes.
- /(?:\[(?:[^[\]\\\r\n]|\\.|\[(?:[^[\]\\\r\n]|\\.|\[(?:[^[\]\\\r\n]|\\.)*\])*\])*\]|\\.|[^/\\\[\r\n])+\/[dgimyus]{0,7}v[dgimyus]{0,7}/.source +
- ')' +
- // lookahead
- /(?=(?:\s|\/\*(?:[^*]|\*(?!\/))*\*\/)*(?:$|[\r\n,.;:})\]]|\/\/))/.source
- ),
- lookbehind: true,
- greedy: true,
- inside: {
- 'regex-source': {
- pattern: /^(\/)[\s\S]+(?=\/[a-z]*$)/,
- lookbehind: true,
- alias: 'language-regex',
- inside: Prism.languages.regex
- },
- 'regex-delimiter': /^\/|\/$/,
- 'regex-flags': /^[a-z]+$/,
- }
- },
- // This must be declared before keyword because we use "function" inside the look-forward
- 'function-variable': {
- pattern: /#?(?!\s)[_$a-zA-Z\xA0-\uFFFF](?:(?!\s)[$\w\xA0-\uFFFF])*(?=\s*[=:]\s*(?:async\s*)?(?:\bfunction\b|(?:\((?:[^()]|\([^()]*\))*\)|(?!\s)[_$a-zA-Z\xA0-\uFFFF](?:(?!\s)[$\w\xA0-\uFFFF])*)\s*=>))/,
- alias: 'function'
- },
- 'parameter': [
- {
- pattern: /(function(?:\s+(?!\s)[_$a-zA-Z\xA0-\uFFFF](?:(?!\s)[$\w\xA0-\uFFFF])*)?\s*\(\s*)(?!\s)(?:[^()\s]|\s+(?![\s)])|\([^()]*\))+(?=\s*\))/,
- lookbehind: true,
- inside: Prism.languages.javascript
- },
- {
- pattern: /(^|[^$\w\xA0-\uFFFF])(?!\s)[_$a-z\xA0-\uFFFF](?:(?!\s)[$\w\xA0-\uFFFF])*(?=\s*=>)/i,
- lookbehind: true,
- inside: Prism.languages.javascript
- },
- {
- pattern: /(\(\s*)(?!\s)(?:[^()\s]|\s+(?![\s)])|\([^()]*\))+(?=\s*\)\s*=>)/,
- lookbehind: true,
- inside: Prism.languages.javascript
- },
- {
- pattern: /((?:\b|\s|^)(?!(?:as|async|await|break|case|catch|class|const|continue|debugger|default|delete|do|else|enum|export|extends|finally|for|from|function|get|if|implements|import|in|instanceof|interface|let|new|null|of|package|private|protected|public|return|set|static|super|switch|this|throw|try|typeof|undefined|var|void|while|with|yield)(?![$\w\xA0-\uFFFF]))(?:(?!\s)[_$a-zA-Z\xA0-\uFFFF](?:(?!\s)[$\w\xA0-\uFFFF])*\s*)\(\s*|\]\s*\(\s*)(?!\s)(?:[^()\s]|\s+(?![\s)])|\([^()]*\))+(?=\s*\)\s*\{)/,
- lookbehind: true,
- inside: Prism.languages.javascript
- }
- ],
- 'constant': /\b[A-Z](?:[A-Z_]|\dx?)*\b/
- });
- Prism.languages.insertBefore('javascript', 'string', {
- 'hashbang': {
- pattern: /^#!.*/,
- greedy: true,
- alias: 'comment'
- },
- 'template-string': {
- pattern: /`(?:\\[\s\S]|\$\{(?:[^{}]|\{(?:[^{}]|\{[^}]*\})*\})+\}|(?!\$\{)[^\\`])*`/,
- greedy: true,
- inside: {
- 'template-punctuation': {
- pattern: /^`|`$/,
- alias: 'string'
- },
- 'interpolation': {
- pattern: /((?:^|[^\\])(?:\\{2})*)\$\{(?:[^{}]|\{(?:[^{}]|\{[^}]*\})*\})+\}/,
- lookbehind: true,
- inside: {
- 'interpolation-punctuation': {
- pattern: /^\$\{|\}$/,
- alias: 'punctuation'
- },
- rest: Prism.languages.javascript
- }
- },
- 'string': /[\s\S]+/
- }
- },
- 'string-property': {
- pattern: /((?:^|[,{])[ \t]*)(["'])(?:\\(?:\r\n|[\s\S])|(?!\2)[^\\\r\n])*\2(?=\s*:)/m,
- lookbehind: true,
- greedy: true,
- alias: 'property'
- }
- });
- Prism.languages.insertBefore('javascript', 'operator', {
- 'literal-property': {
- pattern: /((?:^|[,{])[ \t]*)(?!\s)[_$a-zA-Z\xA0-\uFFFF](?:(?!\s)[$\w\xA0-\uFFFF])*(?=\s*:)/m,
- lookbehind: true,
- alias: 'property'
- },
- });
- if (Prism.languages.markup) {
- Prism.languages.markup.tag.addInlined('script', 'javascript');
- // add attribute support for all DOM events.
- // https://developer.mozilla.org/en-US/docs/Web/Events#Standard_events
- Prism.languages.markup.tag.addAttribute(
- /on(?:abort|blur|change|click|composition(?:end|start|update)|dblclick|error|focus(?:in|out)?|key(?:down|up)|load|mouse(?:down|enter|leave|move|out|over|up)|reset|resize|scroll|select|slotchange|submit|unload|wheel)/.source,
- 'javascript'
- );
- }
- Prism.languages.js = Prism.languages.javascript;
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