feat: add symbol/match

lib/node_modules/@stdlib/symbol/match/README.md

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+<!--
+
+@license Apache-2.0
+
+Copyright (c) 2026 The Stdlib Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+   http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+
+-->
+
+# MatchSymbol
+
+> [symbol][mdn-symbol] which specifies whether an object should be treated as a regular expression.
+
+<!-- Section to include introductory text. Make sure to keep an empty line after the intro `section` element and another before the `/section` close. -->
+
+<section class="intro">
+
+</section>
+
+<!-- /.intro -->
+
+<!-- Package usage documentation. -->
+
+<section class="usage">
+
+## Usage
+
+```javascript
+var MatchSymbol = require( '@stdlib/symbol/match' );
+```
+
+#### MatchSymbol
+
+[`symbol`][mdn-symbol] which specifies whether an object should be treated as a regular expression.
+
+```javascript
+var s = typeof MatchSymbol;
+// e.g., returns 'symbol'
+```
+
+</section>
+
+<!-- /.usage -->
+
+<!-- Package usage notes. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
+
+<section class="notes">
+
+## Notes
+
+-   The [symbol][mdn-symbol] is only supported in environments which support [symbols][mdn-symbol]. In non-supporting environments, the value is `null`.
+-   The `MatchSymbol` is used by `String.prototype.match` to match an input string against an object. When `String.prototype.match` is called, it checks whether the argument has a `MatchSymbol` method. If present, this method is invoked with the input string as its argument, and the returned value becomes the result of the match operation.
+-   The presence of `MatchSymbol` on an object also determines whether the object should be treated as a regular expression when used with string matching methods.
+
+</section>
+
+<!-- /.notes -->
+
+<!-- Package usage examples. -->
+
+<section class="examples">
+
+## Examples
+
+<!-- eslint no-undef: "error" -->
+
+```javascript
+var defineProperty = require( '@stdlib/utils/define-property' );
+var MatchSymbol = require( '@stdlib/symbol/match' );
+
+var obj = {};
+var re = /foo/;
+
+// Define a custom match behavior:
+function customMatch() {
+    return [ 'custom', 'match', 'result' ];
+}
+
+// Attach the custom matcher using Symbol.match:
+defineProperty( obj, MatchSymbol, {
+    'configurable': false,
+    'enumerable': false,
+    'writable': false,
+    'value': customMatch
+});
+
+// Using custom match behavior:
+var v = 'foobar'.match( obj );
+console.log( v );
+// => [ 'custom', 'match', 'result' ]
+
+// Default regular expression match:
+v = 'football'.match( re );
+console.log( v );
+// => [ 'foo' ]
+```
+
+</section>
+
+<!-- /.examples -->
+
+<!-- Section to include cited references. If references are included, add a horizontal rule *before* the section. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
+
+<section class="references">
+
+</section>
+
+<!-- /.references -->
+
+<!-- Section for related `stdlib` packages. Do not manually edit this section, as it is automatically populated. -->
+
+<section class="related">
+
+* * *
+
+## See Also
+
+-   <span class="package-name">[`@stdlib/symbol/ctor`][@stdlib/symbol/ctor]</span><span class="delimiter">: </span><span class="description">symbols.</span>
+
+</section>
+
+<!-- /.related -->
+
+<!-- Section for all links. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
+
+<section class="links">
+
+[mdn-symbol]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Symbol
+
+<!-- <related-links> -->
+
+[@stdlib/symbol/ctor]: https://github.com/stdlib-js/stdlib/tree/develop/lib/node_modules/%40stdlib/symbol/ctor
+
+<!-- </related-links> -->
+
+</section>
+
+<!-- /.links -->

lib/node_modules/@stdlib/symbol/match/docs/repl.txt

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+
+{{alias}}
+    Match symbol.
+
+    This symbol which specifies whether an object should be treated as a
+    regular expression.
+
+    The symbol is only supported in ES6/ES2015+ environments. For non-
+    supporting environments, the value is `null`.
+
+    Examples
+    --------
+    > var s = {{alias}}
+    e.g., <symbol>
+
+    See Also
+    --------
+

lib/node_modules/@stdlib/symbol/match/docs/types/index.d.ts

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+/*
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+// TypeScript Version: 4.1
+
+// EXPORTS //
+
+/**
+* Match symbol.
+*
+* ## Notes
+*
+* -   This symbol which specifies whether an object should be treated as a regular expression.
+* -   The symbol is only supported in ES6/ES2015+ environments. For non-supporting environments, the value is `null`.
+*/
+export = Symbol.match;

lib/node_modules/@stdlib/symbol/match/docs/types/test.ts

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+/*
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+/* eslint-disable @typescript-eslint/no-unused-expressions */
+
+import MatchSymbol = require( './index' );
+
+
+// TESTS //
+
+// The exported value is the match symbol...
+{
+	MatchSymbol;
+}

lib/node_modules/@stdlib/symbol/match/examples/index.js

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+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+var defineProperty = require( '@stdlib/utils/define-property' );
+var MatchSymbol = require( './../lib' );
+
+var obj = {};
+var re = /foo/;
+
+function customMatch() {
+	return [ 'custom', 'match', 'result' ];
+}
+
+defineProperty( obj, MatchSymbol, {
+	'configurable': false,
+	'enumerable': false,
+	'writable': false,
+	'value': customMatch
+});
+
+var v = 'foobar'.match( obj );
+console.log( v );
+// => [ 'custom', 'match', 'result' ]
+
+v = 'football'.match( re );
+console.log( v );
+// => [ 'foo' ]

lib/node_modules/@stdlib/symbol/match/lib/index.js

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+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+/**
+* Match symbol.
+*
+* @module @stdlib/symbol/match
+*
+* @example
+* var MatchSymbol = require( '@stdlib/symbol/match' );
+*
+* var obj = {};
+* obj[ MatchSymbol ] = function () {
+*     return [ 'matched' ];
+* };
+*/
+
+// MAIN //
+
+var main = require( './main.js' );
+
+
+// EXPORTS //
+
+module.exports = main;

lib/node_modules/@stdlib/symbol/match/lib/main.js

@@ -0,0 +1,47 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var hasMatchSymbolSupport = require( '@stdlib/assert/has-match-symbol-support' );
+
+
+// MAIN //
+
+/**
+* Match symbol.
+*
+* @name MatchSymbol
+* @constant
+* @type {(symbol|null)}
+*
+* @example
+* var obj = {};
+* obj[ MatchSymbol ] = function () {
+*     return [ 'matched' ];
+* };
+*/
+
+var MatchSymbol = ( hasMatchSymbolSupport() ) ? Symbol.match : null;
+
+
+// EXPORTS //
+
+module.exports = MatchSymbol;