.

qwen/nodejs/node_modules/regjsparser/LICENSE.BSD

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+Copyright (c) Julian Viereck and Contributors, All Rights Reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+  * Redistributions of source code must retain the above copyright
+    notice, this list of conditions and the following disclaimer.
+  * Redistributions in binary form must reproduce the above copyright
+    notice, this list of conditions and the following disclaimer in the
+    documentation and/or other materials provided with the distribution.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
+DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

qwen/nodejs/node_modules/regjsparser/README.md

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+# RegJSParser
+
+Parsing the JavaScript's RegExp in JavaScript.
+
+## Installation
+
+```bash
+npm install regjsparser
+```
+
+## Usage
+
+```js
+var parse = require('regjsparser').parse;
+
+var parseTree = parse('^a'); // /^a/
+console.log(parseTree);
+
+// Toggle on/off additional features:
+var parseTree = parse('^a', '', {
+  // SEE: https://github.com/jviereck/regjsparser/pull/78
+  unicodePropertyEscape: true,
+
+  // SEE: https://github.com/jviereck/regjsparser/pull/83
+  namedGroups: true,
+
+  // SEE: https://github.com/jviereck/regjsparser/pull/89
+  lookbehind: true
+});
+console.log(parseTree);
+```
+
+## Testing
+
+To run the tests, run the following command:
+
+```bash
+npm test
+```
+
+To create a new reference file, execute…
+
+```bash
+node test/update-fixtures.js
+```
+
+…from the repo top directory.

qwen/nodejs/node_modules/regjsparser/bin/parser

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+#!/usr/bin/env node
+(function() {
+
+  var fs = require('fs');
+  var path = require('path');
+  var parse = require('../parser').parse;
+  var jsesc = require('jsesc');
+  var regexes = process.argv.splice(2);
+  var first = regexes[0];
+  var data;
+  var log = console.log;
+  var flags = '';
+  var main = function() {
+    if (/^(?:-h|--help|undefined)$/.test(first)) {
+      log([
+        '\nUsage:\n',
+        '\tregjsparser [regex ...]',
+        '\tregjsparser [-f | --flags] u [regex ...]',
+        '\tregjsparser [-v | --version]',
+        '\tregjsparser [-h | --help]',
+        '\nExamples:\n',
+        '\tregjsparser \'^foo.bar$\'',
+        '\tregjsparser \'[a-zA-Z0-9]\''
+      ].join('\n'));
+      return process.exit(1);
+    }
+
+    if (/^(?:-v|--version)$/.test(first)) {
+      log('v%s', require(path.resolve(__dirname, '../package.json')).version);
+      return process.exit(1);
+    }
+
+    if (/^(?:-f|--flags)$/.test(first)) {
+      flags = regexes[1];
+      regexes = regexes.slice(2);
+    }
+
+    regexes.forEach(function(snippet) {
+      try {
+        result = parse(snippet, flags);
+        log(jsesc(result, {
+          'json': true,
+          'compact': false,
+          'indent': '\t'
+        }));
+      } catch(error) {
+        log(error.message + '\n');
+        log('Error: failed to parse. Make sure the regular expression is valid.');
+        log('If you think this is a bug in regjsparser, please report it:');
+        log('\thttps://github.com/jviereck/regjsparser/issues/new');
+        log('\nStack trace:\n');
+        log(error.stack);
+        return process.exit(1);
+      }
+    });
+    // Return with exit status 0 outside of the `forEach` loop, in case
+    // multiple regular expressions were passed in.
+    return process.exit(0);
+  };
+
+  main();
+
+}());

qwen/nodejs/node_modules/regjsparser/package.json

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+{
+  "name": "regjsparser",
+  "version": "0.13.0",
+  "author": "'Julian Viereck' <julian.viereck@gmail.com>",
+  "license": "BSD-2-Clause",
+  "main": "./parser",
+  "types": "./parser.d.ts",
+  "bin": {
+    "regjsparser": "bin/parser"
+  },
+  "homepage": "https://github.com/jviereck/regjsparser",
+  "repository": {
+    "type": "git",
+    "url": "git+ssh://git@github.com/jviereck/regjsparser.git"
+  },
+  "scripts": {
+    "lint": "eslint --max-warnings 0 .",
+    "test": "run-p test:* lint",
+    "test:src": "node test/index.js",
+    "test:types": "tsc test/types.ts --noEmit",
+    "bench:baseline": "node ./tools/bench/index.mjs baseline",
+    "bench:current": "node ./tools/bench/index.mjs current",
+    "bench": "run-s bench:*"
+  },
+  "files": [
+    "bin/",
+    "LICENSE.BSD",
+    "parser.js",
+    "parser.d.ts",
+    "README.md"
+  ],
+  "dependencies": {
+    "jsesc": "~3.1.0"
+  },
+  "devDependencies": {
+    "@unicode/unicode-17.0.0": "^1.6.12",
+    "eslint": "^9.35.0",
+    "eslint-plugin-regexp": "^2.10.0",
+    "globals": "^16.4.0",
+    "npm-run-all": "^4.1.5",
+    "regenerate": "^1.4.2",
+    "regjsparser": "^0.11.2",
+    "tinybench": "^5.0.1",
+    "typescript": "~5.9.2"
+  }
+}

qwen/nodejs/node_modules/regjsparser/parser.d.ts

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+type _If<Test, Then, Else> = Test extends true ? Then : Else;
+
+export type Features = {
+  lookbehind?: boolean;
+  namedGroups?: boolean;
+  unicodePropertyEscape?: boolean;
+  unicodeSet?: boolean;
+  modifiers?: boolean;
+};
+
+export type AstNodeType =
+  | "alternative"
+  | "anchor"
+  | "characterClass"
+  | "characterClassEscape"
+  | "characterClassRange"
+  | "disjunction"
+  | "dot"
+  | "group"
+  | "quantifier"
+  | "reference"
+  | "unicodePropertyEscape"
+  | "value";
+
+export type Base<T extends AstNodeType> = {
+  range: [number, number];
+  raw: string;
+  type: T;
+};
+
+export type AstNode<F extends Features = {}> =
+  | Alternative<F>
+  | Anchor
+  | CharacterClass<F>
+  | CharacterClassEscape
+  | CharacterClassRange
+  | Disjunction<F>
+  | Dot
+  | Group<F>
+  | Quantifier<F>
+  | Reference<F>
+  | _If<F["unicodePropertyEscape"], UnicodePropertyEscape, never>
+  | Value;
+
+export type RootNode<F extends Features = {}> = Exclude<
+  AstNode<F>,
+  CharacterClassRange
+>;
+
+export type Anchor = Base<"anchor"> & {
+  kind: "boundary" | "end" | "not-boundary" | "start";
+};
+
+export type CharacterClassEscape = Base<"characterClassEscape"> & {
+  value: 'd' | 'D' | 'w' | 'W' | 's' | 'S';
+};
+
+export type Value = Base<"value"> & {
+  codePoint: number;
+  kind:
+    | "controlLetter"
+    | "hexadecimalEscape"
+    | "identifier"
+    | "null"
+    | "octal"
+    | "singleEscape"
+    | "symbol"
+    | "unicodeCodePointEscape"
+    | "unicodeEscape";
+};
+
+export type Identifier = Base<"value"> & {
+  value: string;
+};
+
+export type Alternative<F extends Features = {}> = Base<"alternative"> & {
+  body: RootNode<F>[];
+};
+
+export type CharacterClassRange = Base<"characterClassRange"> & {
+  max: Value;
+  min: Value;
+};
+
+export type UnicodePropertyEscape = Base<"unicodePropertyEscape"> & {
+  negative: boolean;
+  value: string;
+};
+
+export type CharacterClassBody =
+  | CharacterClassEscape
+  | CharacterClassRange
+  | UnicodePropertyEscape
+  | Value;
+
+export type CharacterClass<F extends Features = {}> = Base<"characterClass"> & {
+  body: CharacterClassBody[];
+  negative: boolean;
+  kind: "union" | _If<F["unicodeSet"], "intersection" | "subtraction", never>;
+};
+
+export type ModifierFlags = {
+  enabling: string;
+  disabling: string;
+};
+
+export type NonCapturingGroup<F extends Features = {}> = Base<"group"> &
+  (
+    | {
+        behavior:
+          | "lookahead"
+          | "lookbehind"
+          | "negativeLookahead"
+          | "negativeLookbehind";
+        body: RootNode<F>[];
+      }
+    | ({
+        behavior: "ignore";
+        body: RootNode<F>[];
+      } & _If<
+        F["modifiers"],
+        {
+          modifierFlags?: ModifierFlags;
+        },
+        {
+          modifierFlags: undefined;
+        }
+      >)
+  );
+
+export type CapturingGroup<F extends Features = {}> = Base<"group"> & {
+  behavior: "normal";
+  body: RootNode<F>[];
+} & _If<
+    F["namedGroups"],
+    {
+      name?: Identifier;
+    },
+    {
+      name: undefined;
+    }
+  >;
+
+export type Group<F extends Features = {}> =
+  | CapturingGroup<F>
+  | NonCapturingGroup<F>;
+
+export type Quantifier<F extends Features = {}> = Base<"quantifier"> & {
+  body: [RootNode<F>];
+  greedy: boolean;
+  max?: number;
+  min: number;
+  symbol?: "?" | "*" | "+";
+};
+
+export type Disjunction<F extends Features = {}> = Base<"disjunction"> & {
+  body: [RootNode<F>, RootNode<F>, ...RootNode<F>[]];
+};
+
+export type Dot = Base<"dot">;
+
+export type NamedReference = Base<"reference"> & {
+  matchIndex: undefined;
+  name: Identifier;
+};
+
+export type IndexReference = Base<"reference"> & {
+  matchIndex: number;
+  name: undefined;
+};
+
+export type Reference<F extends Features = {}> = _If<
+  F["namedGroups"],
+  IndexReference | NamedReference,
+  IndexReference
+>;
+
+export function parse<F extends Features = {}>(
+  str: string,
+  flags: string,
+  features?: F
+): RootNode<F>;