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(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);
|
