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

136 lines
3.8 KiB
JavaScript

(function (Prism) {
Prism.languages.insertBefore('javascript', 'function-variable', {
'method-variable': {
pattern: RegExp('(\\.\\s*)' + Prism.languages.javascript['function-variable'].pattern.source),
lookbehind: true,
alias: ['function-variable', 'method', 'function', 'property-access']
}
});
Prism.languages.insertBefore('javascript', 'function', {
'method': {
pattern: RegExp('(\\.\\s*)' + Prism.languages.javascript['function'].source),
lookbehind: true,
alias: ['function', 'property-access']
}
});
Prism.languages.insertBefore('javascript', 'constant', {
'known-class-name': [
{
// standard built-ins
// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects
pattern: /\b(?:(?:Float(?:32|64)|(?:Int|Uint)(?:8|16|32)|Uint8Clamped)?Array|ArrayBuffer|BigInt|Boolean|DataView|Date|Error|Function|Intl|JSON|(?:Weak)?(?:Map|Set)|Math|Number|Object|Promise|Proxy|Reflect|RegExp|String|Symbol|WebAssembly)\b/,
alias: 'class-name'
},
{
// errors
pattern: /\b(?:[A-Z]\w*)Error\b/,
alias: 'class-name'
}
]
});
/**
* Replaces the `<ID>` placeholder in the given pattern with a pattern for general JS identifiers.
*
* @param {string} source
* @param {string} [flags]
* @returns {RegExp}
*/
function withId(source, flags) {
return RegExp(
source.replace(/<ID>/g, function () { return /(?!\s)[_$a-zA-Z\xA0-\uFFFF](?:(?!\s)[$\w\xA0-\uFFFF])*/.source; }),
flags);
}
Prism.languages.insertBefore('javascript', 'keyword', {
'imports': {
// https://tc39.es/ecma262/#sec-imports
pattern: withId(/(\bimport\b\s*)(?:<ID>(?:\s*,\s*(?:\*\s*as\s+<ID>|\{[^{}]*\}))?|\*\s*as\s+<ID>|\{[^{}]*\})(?=\s*\bfrom\b)/.source),
lookbehind: true,
inside: Prism.languages.javascript
},
'exports': {
// https://tc39.es/ecma262/#sec-exports
pattern: withId(/(\bexport\b\s*)(?:\*(?:\s*as\s+<ID>)?(?=\s*\bfrom\b)|\{[^{}]*\})/.source),
lookbehind: true,
inside: Prism.languages.javascript
}
});
Prism.languages.javascript['keyword'].unshift(
{
pattern: /\b(?:as|default|export|from|import)\b/,
alias: 'module'
},
{
pattern: /\b(?:await|break|catch|continue|do|else|finally|for|if|return|switch|throw|try|while|yield)\b/,
alias: 'control-flow'
},
{
pattern: /\bnull\b/,
alias: ['null', 'nil']
},
{
pattern: /\bundefined\b/,
alias: 'nil'
}
);
Prism.languages.insertBefore('javascript', 'operator', {
'spread': {
pattern: /\.{3}/,
alias: 'operator'
},
'arrow': {
pattern: /=>/,
alias: 'operator'
}
});
Prism.languages.insertBefore('javascript', 'punctuation', {
'property-access': {
pattern: withId(/(\.\s*)#?<ID>/.source),
lookbehind: true
},
'maybe-class-name': {
pattern: /(^|[^$\w\xA0-\uFFFF])[A-Z][$\w\xA0-\uFFFF]+/,
lookbehind: true
},
'dom': {
// this contains only a few commonly used DOM variables
pattern: /\b(?:document|(?:local|session)Storage|location|navigator|performance|window)\b/,
alias: 'variable'
},
'console': {
pattern: /\bconsole(?=\s*\.)/,
alias: 'class-name'
}
});
// add 'maybe-class-name' to tokens which might be a class name
var maybeClassNameTokens = ['function', 'function-variable', 'method', 'method-variable', 'property-access'];
for (var i = 0; i < maybeClassNameTokens.length; i++) {
var token = maybeClassNameTokens[i];
var value = Prism.languages.javascript[token];
// convert regex to object
if (Prism.util.type(value) === 'RegExp') {
value = Prism.languages.javascript[token] = {
pattern: value
};
}
// keep in mind that we don't support arrays
var inside = value.inside || {};
value.inside = inside;
inside['maybe-class-name'] = /^[A-Z][\s\S]*/;
}
}(Prism));