From fc87c009806dcc98867f6b58efe29b042aa01dee Mon Sep 17 00:00:00 2001 From: littleblack111 Date: Mon, 18 May 2026 23:10:59 +0800 Subject: node: update --- node_modules/regexpu-core/README.md | 226 ------------------------------------ 1 file changed, 226 deletions(-) delete mode 100644 node_modules/regexpu-core/README.md (limited to 'node_modules/regexpu-core/README.md') diff --git a/node_modules/regexpu-core/README.md b/node_modules/regexpu-core/README.md deleted file mode 100644 index bab65e22..00000000 --- a/node_modules/regexpu-core/README.md +++ /dev/null @@ -1,226 +0,0 @@ -# regexpu-core [![Build status](https://github.com/mathiasbynens/regexpu-core/workflows/run-checks/badge.svg)](https://github.com/mathiasbynens/regexpu-core/actions?query=workflow%3Arun-checks) [![regexpu-core on npm](https://img.shields.io/npm/v/regexpu-core)](https://www.npmjs.com/package/regexpu-core) - -_regexpu_ is a source code transpiler that enables the use of ES2015 Unicode regular expressions in JavaScript-of-today (ES5). - -_regexpu-core_ contains _regexpu_’s core functionality, i.e. `rewritePattern(pattern, flag)`, which enables rewriting regular expressions that make use of [the ES2015 `u` flag](https://mathiasbynens.be/notes/es6-unicode-regex) into equivalent ES5-compatible regular expression patterns. - -## Installation - -To use _regexpu-core_ programmatically, install it as a dependency via [npm](https://www.npmjs.com/): - -```bash -npm install regexpu-core --save -``` - -Then, `require` it: - -```js -const rewritePattern = require('regexpu-core'); -``` - -## API - -This module exports a single function named `rewritePattern`. - -### `rewritePattern(pattern, flags, options)` - -This function takes a string that represents a regular expression pattern as well as a string representing its flags, and returns an ES5-compatible version of the pattern. - -```js -rewritePattern('foo.bar', 'u'); -// → 'foo(?:[\\0-\\t\\x0B\\f\\x0E-\\u2027\\u202A-\\uD7FF\\uDC00-\\uFFFF]|[\\uD800-\\uDBFF][\\uDC00-\\uDFFF]|[\\uD800-\\uDBFF])bar' - -rewritePattern('[\\u{1D306}-\\u{1D308}a-z]', 'u'); -// → '(?:[a-z]|\\uD834[\\uDF06-\\uDF08])' - -rewritePattern('[\\u{1D306}-\\u{1D308}a-z]', 'ui'); -// → '(?:[a-z\\u017F\\u212A]|\\uD834[\\uDF06-\\uDF08])' -``` - -_regexpu-core_ can rewrite non-ES6 regular expressions too, which is useful to demonstrate how their behavior changes once the `u` and `i` flags are added: - -```js -// In ES5, the dot operator only matches BMP symbols: -rewritePattern('foo.bar'); -// → 'foo(?:[\\0-\\t\\x0B\\f\\x0E-\\u2027\\u202A-\\uFFFF])bar' - -// But with the ES2015 `u` flag, it matches astral symbols too: -rewritePattern('foo.bar', 'u'); -// → 'foo(?:[\\0-\\t\\x0B\\f\\x0E-\\u2027\\u202A-\\uD7FF\\uDC00-\\uFFFF]|[\\uD800-\\uDBFF][\\uDC00-\\uDFFF]|[\\uD800-\\uDBFF])bar' -``` - -The optional `options` argument recognizes the following properties: - -#### Stable regular expression features - -These options can be set to `false` or `'transform'`. When using `'transform'`, the corresponding features are compiled to older syntax that can run in older browsers. When using `false` (the default), they are not compiled and they can be relied upon to compile more modern features. - -- `unicodeFlag` - The `u` flag, enabling support for Unicode code point escapes in the form `\u{...}`. - - ```js - rewritePattern('\\u{ab}', '', { - unicodeFlag: 'transform' - }); - // → '\\u{ab}' - - rewritePattern('\\u{ab}', 'u', { - unicodeFlag: 'transform' - }); - // → '\\xAB' - ``` - -- `dotAllFlag` - The [`s` (`dotAll`) flag](https://github.com/mathiasbynens/es-regexp-dotall-flag). - - ```js - rewritePattern('.', '', { - dotAllFlag: 'transform' - }); - // → '[\\0-\\t\\x0B\\f\\x0E-\\u2027\\u202A-\\uFFFF]' - - rewritePattern('.', 's', { - dotAllFlag: 'transform' - }); - // → '[\\0-\\uFFFF]' - - rewritePattern('.', 'su', { - dotAllFlag: 'transform' - }); - // → '(?:[\\0-\\uD7FF\\uE000-\\uFFFF]|[\\uD800-\\uDBFF][\\uDC00-\\uDFFF]|[\\uD800-\\uDBFF](?![\\uDC00-\\uDFFF])|(?:[^\\uD800-\\uDBFF]|^)[\\uDC00-\\uDFFF])' - ``` - -- `unicodePropertyEscapes` - [Unicode property escapes](property-escapes.md). - - By default they are compiled to Unicode code point escapes of the form `\u{...}`. If the `unicodeFlag` option is set to `'transform'` they often result in larger output, although there are cases (such as `\p{Lu}`) where it actually _decreases_ the output size. - - ```js - rewritePattern('\\p{Script_Extensions=Anatolian_Hieroglyphs}', 'u', { - unicodePropertyEscapes: 'transform' - }); - // → '[\\u{14400}-\\u{14646}]' - - rewritePattern('\\p{Script_Extensions=Anatolian_Hieroglyphs}', 'u', { - unicodeFlag: 'transform', - unicodePropertyEscapes: 'transform' - }); - // → '(?:\\uD811[\\uDC00-\\uDE46])' - ``` - -- `namedGroups` - [Named capture groups](https://github.com/tc39/proposal-regexp-named-groups). - - ```js - rewritePattern('(?.)\\k', '', { - namedGroups: 'transform' - }); - // → '(.)\1' - ``` - -#### Experimental regular expression features - -These options can be set to `false`, `'parse'` and `'transform'`. When using `'transform'`, the corresponding features are compiled to older syntax that can run in older browsers. When using `'parse'`, they are parsed and left as-is in the output pattern. When using `false` (the default), they result in a syntax error if used. - -Once these features become stable (when the proposals are accepted as part of ECMAScript), they will be parsed by default and thus `'parse'` will behave like `false`. - -- `unicodeSetsFlag` - [The `v` (`unicodeSets`) flag](https://github.com/tc39/proposal-regexp-set-notation) - - ```js - rewritePattern('[\\p{Emoji}&&\\p{ASCII}]', 'u', { - unicodeSetsFlag: 'transform' - }); - // → '[#\*0-9]' - ``` - - By default, patterns with the `v` flag are transformed to patterns with the `u` flag. If you want to downlevel them more you can set the `unicodeFlag: 'transform'` option. - - ```js - rewritePattern('[^[a-h]&&[f-z]]', 'v', { - unicodeSetsFlag: 'transform' - }); - // → '[^f-h]' (to be used with /u) - ``` - - ```js - rewritePattern('[^[a-h]&&[f-z]]', 'v', { - unicodeSetsFlag: 'transform', - unicodeFlag: 'transform' - }); - // → '(?:(?![f-h])[\s\S])' (to be used without /u) - ``` - -- `modifiers` - [Inline `m`/`s`/`i` modifiers](https://github.com/tc39/proposal-regexp-modifiers) - - ```js - rewritePattern('(?i:[a-z])[a-z]', '', { - modifiers: 'transform' - }); - // → '(?:[a-zA-Z])([a-z])' - ``` - -#### Miscellaneous options - -- `onNamedGroup` - - This option is a function that gets called when a named capture group is found. It receives two parameters: - the name of the group, and its index. - - ```js - rewritePattern('(?.)\\k', '', { - onNamedGroup(name, index) { - console.log(name, index); - // → 'name', 1 - } - }); - ``` - -- `onNewFlags` - - This option is a function that gets called to pass the flags that the resulting pattern must be interpreted with. - - ```js - rewritePattern('abc', 'um', '', { - unicodeFlag: 'transform', - onNewFlags(flags) { - console.log(flags); - // → 'm' - } - }) - ``` - -### Caveats - -- [Lookbehind assertions](https://github.com/tc39/proposal-regexp-lookbehind) cannot be transformed to older syntax. -- When using `namedGroups: 'transform'`, _regexpu-core_ only takes care of the _syntax_: you will still need a runtime wrapper around the regular expression to populate the `.groups` property of `RegExp.prototype.match()`'s result. If you are using _regexpu-core_ via Babel, it's handled automatically. - -## For maintainers - -### How to publish a new release - -1. On the `main` branch, bump the version number in `package.json`: - - ```sh - npm version patch -m 'Release v%s' - ``` - - Instead of `patch`, use `minor` or `major` [as needed](https://semver.org/). - - Note that this produces a Git commit + tag. - -1. Push the release commit and tag: - - ```sh - git push --follow-tags - ``` - - Our CI then automatically publishes the new release to npm. - -1. Once the release has been published to npm, update [`regexpu`](https://github.com/mathiasbynens/regexpu) to make use of it, and [cut a new release of `regexpu` as well](https://github.com/mathiasbynens/regexpu#how-to-publish-a-new-release). - - -## Author - -| [![twitter/mathias](https://gravatar.com/avatar/24e08a9ea84deb17ae121074d0f17125?s=70)](https://twitter.com/mathias "Follow @mathias on Twitter") | -|---| -| [Mathias Bynens](https://mathiasbynens.be/) | - -## License - -_regexpu-core_ is available under the [MIT](https://mths.be/mit) license. -- cgit v1.2.3