diff --git a/lib/node_modules/@stdlib/string/num-code-points/README.md b/lib/node_modules/@stdlib/string/num-code-points/README.md
new file mode 100644
index 000000000000..93bfba833526
--- /dev/null
+++ b/lib/node_modules/@stdlib/string/num-code-points/README.md
@@ -0,0 +1,152 @@
+
+
+# numCodePoints
+
+> Return the number of Unicode code points in a string.
+
+
+
+## Usage
+
+```javascript
+var numCodePoints = require( '@stdlib/string/num-code-points' );
+```
+
+#### numCodePoints( str )
+
+Returns the number of code points in a string.
+
+```javascript
+var out = numCodePoints( 'last man standing' );
+// returns 17
+
+out = numCodePoints( 'Hidden Treasures' );
+// returns 16
+
+out = numCodePoints( '👋👋👋' );
+// returns 3
+```
+
+
+
+
+
+
+
+## Examples
+
+
+
+```javascript
+var numCodePoints = require( '@stdlib/string/num-code-points' );
+
+console.log( numCodePoints( 'last man standing' ) );
+// => 17
+
+console.log( numCodePoints( '六书/六書' ) );
+// => 5
+
+console.log( numCodePoints( '🐶🐮🐷🐰🐸' ) );
+// => 5
+
+console.log( numCodePoints( 'Hello 👋 World' ) );
+// => 13
+```
+
+
+
+
+
+* * *
+
+
+
+## CLI
+
+
+
+### Usage
+
+```text
+Usage: num-code-points [options] []
+
+Options:
+
+ -h, --help Print this message.
+ -V, --version Print the package version.
+ -l, --lines Analyze individual lines.
+```
+
+
+
+
+
+
+
+### Examples
+
+```bash
+$ num-code-points beep
+4
+```
+
+To use as a [standard stream][standard-streams],
+
+```bash
+$ echo -n 'beep\nboop書' | num-code-points
+10
+```
+
+```bash
+$ echo -n 'beep\nboop書' | num-code-points -l
+4
+5
+```
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+[standard-streams]: https://en.wikipedia.org/wiki/Standard_streams
+
+
+
+
+
+
+
+
diff --git a/lib/node_modules/@stdlib/string/num-code-points/benchmark/benchmark.js b/lib/node_modules/@stdlib/string/num-code-points/benchmark/benchmark.js
new file mode 100644
index 000000000000..577ba7c1d0cd
--- /dev/null
+++ b/lib/node_modules/@stdlib/string/num-code-points/benchmark/benchmark.js
@@ -0,0 +1,62 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2025 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 bench = require( '@stdlib/bench' );
+var isInteger = require( '@stdlib/assert/is-integer' );
+var pkg = require( './../package.json' ).name;
+var numCodePoints = require( './../lib' );
+
+
+// MAIN //
+
+bench( pkg, function benchmark( b ) {
+ var strings;
+ var out;
+ var i;
+
+ strings = [
+ 'last man standing',
+ 'presidential election',
+ 'अनुच्छेद',
+ '🌷',
+ '书/六書',
+ 'เ❄︎நி',
+ 'กิิก้้ก็็ก็็กิิก้้ก็็กิิก้้กิิก้้ก็็ก็็กิิก้้ก็็กิิก้้',
+ '書六/书六',
+ 'ܶƔλʃݖͱšɕ҆ʧѸؐҜҦɳΏ',
+ 'âݝΝҳӌݾҀƳ۵ۧǁǸΓ'
+ ];
+
+ b.tic();
+ for ( i = 0; i < b.iterations; i++ ) {
+ out = numCodePoints( strings[ i%strings.length ] );
+ if ( out < 0 ) {
+ b.fail( 'should never be a negative integer' );
+ }
+ }
+ b.toc();
+ if ( !isInteger( out ) ) {
+ b.fail( 'should return an integer' );
+ }
+ b.pass( 'benchmark finished' );
+ b.end();
+});
diff --git a/lib/node_modules/@stdlib/string/num-code-points/bin/cli b/lib/node_modules/@stdlib/string/num-code-points/bin/cli
new file mode 100644
index 000000000000..abf22268cc41
--- /dev/null
+++ b/lib/node_modules/@stdlib/string/num-code-points/bin/cli
@@ -0,0 +1,106 @@
+#!/usr/bin/env node
+
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2025 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 resolve = require( 'path' ).resolve;
+var readFileSync = require( '@stdlib/fs/read-file' ).sync;
+var CLI = require( '@stdlib/cli/ctor' );
+var stdin = require( '@stdlib/process/read-stdin' );
+var stdinStream = require( '@stdlib/streams/node/stdin' );
+var RE_EOL = require( '@stdlib/regexp/eol' ).REGEXP;
+var numCodePoints = require( './../lib' );
+
+
+// MAIN //
+
+/**
+* Main execution sequence.
+*
+* @private
+* @returns {void}
+*/
+function main() {
+ var flags;
+ var lines;
+ var args;
+ var cli;
+ var i;
+
+ // Create a command-line interface:
+ cli = new CLI({
+ 'pkg': require( './../package.json' ),
+ 'options': require( './../etc/cli_opts.json' ),
+ 'help': readFileSync( resolve( __dirname, '..', 'docs', 'usage.txt' ), {
+ 'encoding': 'utf8'
+ })
+ });
+
+ // Get any provided command-line options:
+ flags = cli.flags();
+ if ( flags.help || flags.version ) {
+ return;
+ }
+
+ // Get any provided command-line arguments:
+ args = cli.args();
+
+ // Check if we are receiving data from `stdin`...
+ if ( !stdinStream.isTTY ) {
+ return stdin( onRead );
+ }
+ if ( flags.lines ) {
+ lines = args[ 0 ].split( RE_EOL );
+ for ( i = 0; i < lines.length; i++ ) {
+ console.log( numCodePoints( lines[ i ] ) ); // eslint-disable-line no-console
+ }
+ } else {
+ console.log( numCodePoints( args[ 0 ] ) ); // eslint-disable-line no-console
+ }
+
+ /**
+ * Callback invoked upon reading from `stdin`.
+ *
+ * @private
+ * @param {(Error|null)} error - error object
+ * @param {Buffer} data - data
+ * @returns {void}
+ */
+ function onRead( error, data ) {
+ var lines;
+ var i;
+ if ( error ) {
+ return cli.error( error );
+ }
+ data = data.toString();
+ if ( flags.lines ) {
+ lines = data.split( RE_EOL );
+ for ( i = 0; i < lines.length; i++ ) {
+ console.log( numCodePoints( lines[ i ] ) ); // eslint-disable-line no-console
+ }
+ } else {
+ console.log( numCodePoints( data ) ); // eslint-disable-line no-console
+ }
+ }
+}
+
+main();
diff --git a/lib/node_modules/@stdlib/string/num-code-points/docs/repl.txt b/lib/node_modules/@stdlib/string/num-code-points/docs/repl.txt
new file mode 100644
index 000000000000..53aaaadf4463
--- /dev/null
+++ b/lib/node_modules/@stdlib/string/num-code-points/docs/repl.txt
@@ -0,0 +1,23 @@
+
+{{alias}}( str )
+ Returns the number of code points in a string.
+
+ Parameters
+ ----------
+ str: string
+ Input string.
+
+ Returns
+ -------
+ out: string
+ Number of code points.
+
+ Examples
+ --------
+ > var out = {{alias}}( 'beep' )
+ 4
+ > out = {{alias}}( '六' )
+ 1
+
+ See Also
+ --------
diff --git a/lib/node_modules/@stdlib/string/num-code-points/docs/types/index.d.ts b/lib/node_modules/@stdlib/string/num-code-points/docs/types/index.d.ts
new file mode 100644
index 000000000000..ca70d00ef83d
--- /dev/null
+++ b/lib/node_modules/@stdlib/string/num-code-points/docs/types/index.d.ts
@@ -0,0 +1,48 @@
+/*
+* @license Apache-2.0
+*
+* Copyright (c) 2025 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: 2.0
+
+/**
+* Returns the number of code points in a string.
+*
+* @param str - input string
+* @returns number of code points
+*
+* @example
+* var out = numCodePoints( 'last man standing' );
+* // returns 17
+*
+* @example
+* var out = numCodePoints( 'presidential election' );
+* // returns 21
+*
+* @example
+* var out = numCodePoints( '六' );
+* // returns 1
+*
+* @example
+* var out = numCodePoints( 'अनुच्छेद' );
+* // returns 5
+*/
+declare function numCodePoints( str: string ): number;
+
+
+// EXPORTS //
+
+export = numCodePoints;
diff --git a/lib/node_modules/@stdlib/string/num-code-points/docs/types/test.ts b/lib/node_modules/@stdlib/string/num-code-points/docs/types/test.ts
new file mode 100644
index 000000000000..0e277c7c1ade
--- /dev/null
+++ b/lib/node_modules/@stdlib/string/num-code-points/docs/types/test.ts
@@ -0,0 +1,44 @@
+/*
+* @license Apache-2.0
+*
+* Copyright (c) 2025 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.
+*/
+
+import numCodePoints = require( './index' );
+
+
+// TESTS //
+
+// The function returns a number...
+{
+ numCodePoints( 'abc' ); // $ExpectType number
+}
+
+// The compiler throws an error if the function is provided a value other than a string...
+{
+ numCodePoints( true ); // $ExpectError
+ numCodePoints( false ); // $ExpectError
+ numCodePoints( null ); // $ExpectError
+ numCodePoints( undefined ); // $ExpectError
+ numCodePoints( 5 ); // $ExpectError
+ numCodePoints( [] ); // $ExpectError
+ numCodePoints( {} ); // $ExpectError
+ numCodePoints( ( x: number ): number => x ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided insufficient arguments...
+{
+ numCodePoints(); // $ExpectError
+}
diff --git a/lib/node_modules/@stdlib/string/num-code-points/docs/usage.txt b/lib/node_modules/@stdlib/string/num-code-points/docs/usage.txt
new file mode 100644
index 000000000000..3214f1149de3
--- /dev/null
+++ b/lib/node_modules/@stdlib/string/num-code-points/docs/usage.txt
@@ -0,0 +1,8 @@
+
+Usage: num-code-points [options] []
+
+Options:
+
+ -h, --help Print this message.
+ -V, --version Print the package version.
+ -l, --lines Analyze individual lines.
diff --git a/lib/node_modules/@stdlib/string/num-code-points/etc/cli_opts.json b/lib/node_modules/@stdlib/string/num-code-points/etc/cli_opts.json
new file mode 100644
index 000000000000..d5d5629e9e27
--- /dev/null
+++ b/lib/node_modules/@stdlib/string/num-code-points/etc/cli_opts.json
@@ -0,0 +1,18 @@
+{
+ "boolean": [
+ "help",
+ "version",
+ "lines"
+ ],
+ "alias": {
+ "help": [
+ "h"
+ ],
+ "version": [
+ "V"
+ ],
+ "lines": [
+ "l"
+ ]
+ }
+}
diff --git a/lib/node_modules/@stdlib/string/num-code-points/examples/index.js b/lib/node_modules/@stdlib/string/num-code-points/examples/index.js
new file mode 100644
index 000000000000..845e339ae672
--- /dev/null
+++ b/lib/node_modules/@stdlib/string/num-code-points/examples/index.js
@@ -0,0 +1,33 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2025 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 numCodePoints = require( './../lib' );
+
+console.log( numCodePoints( 'last man standing' ) );
+// => 17
+
+console.log( numCodePoints( '六书/六書' ) );
+// => 5
+
+console.log( numCodePoints( '🐶🐮🐷🐰🐸' ) );
+// => 5
+
+console.log( numCodePoints( 'Hello 👋 World' ) );
+// => 13
diff --git a/lib/node_modules/@stdlib/string/num-code-points/lib/index.js b/lib/node_modules/@stdlib/string/num-code-points/lib/index.js
new file mode 100644
index 000000000000..bcc3f732fc3d
--- /dev/null
+++ b/lib/node_modules/@stdlib/string/num-code-points/lib/index.js
@@ -0,0 +1,43 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2025 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';
+
+/**
+* Return the number of code points in a string.
+*
+* @module @stdlib/string/num-code-points
+*
+* @example
+* var numCodePoints = require( '@stdlib/string/num-code-points' );
+*
+* var out = numCodePoints( 'last man standing' );
+* // returns 17
+*
+* out = numCodePoints( '六' );
+* // returns 1
+*/
+
+// MODULES //
+
+var main = require( './main.js' );
+
+
+// EXPORTS //
+
+module.exports = main;
diff --git a/lib/node_modules/@stdlib/string/num-code-points/lib/main.js b/lib/node_modules/@stdlib/string/num-code-points/lib/main.js
new file mode 100644
index 000000000000..87762f0c6159
--- /dev/null
+++ b/lib/node_modules/@stdlib/string/num-code-points/lib/main.js
@@ -0,0 +1,89 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2025 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 isString = require( '@stdlib/assert/is-string' ).isPrimitive;
+var format = require( '@stdlib/string/format' );
+
+
+// VARIABLES //
+
+var RE_UTF16_LOW_SURROGATE = /[\uDC00-\uDFFF]/; // TODO: replace with stdlib pkg
+var RE_UTF16_HIGH_SURROGATE = /[\uD800-\uDBFF]/; // TODO: replace with stdlib pkg
+
+
+// MAIN //
+
+/**
+* Returns the number of code points in a string.
+*
+* @param {string} str - input string
+* @throws {TypeError} must provide a string
+* @returns {NonNegativeInteger} number of code points
+*
+* @example
+* var out = numCodePoints( 'last man standing' );
+* // returns 17
+*
+* @example
+* var out = numCodePoints( 'presidential election' );
+* // returns 21
+*
+* @example
+* var out = numCodePoints( 'अनुच्छेद' );
+* // returns 8
+*/
+function numCodePoints( str ) {
+ var count;
+ var i;
+
+ if ( !isString( str ) ) {
+ throw new TypeError( format( 'invalid argument. Must provide a string. Value: `%s`.', str ) );
+ }
+ count = 0;
+
+ // Process the string one Unicode code unit at a time and count UTF-16 surrogate pairs as a single Unicode code point...
+ for ( i = 0; i < str.length; i++ ) {
+ // Check for a high UTF-16 surrogate...
+ if ( RE_UTF16_HIGH_SURROGATE.test( str[ i ] ) ) {
+ // Check for an unpaired surrogate at the end of the input string...
+ if ( i === str.length-1 ) {
+ // We found an unpaired surrogate...
+ count += 1;
+ break;
+ }
+ // Check whether the high surrogate is paired with a low surrogate...
+ if ( RE_UTF16_LOW_SURROGATE.test( str[ i+1 ] ) ) {
+ // We found a surrogate pair:
+ i += 1; // bump the index to process the next code unit
+ count += 1;
+ }
+ } else {
+ count += 1;
+ }
+ }
+ return count;
+}
+
+
+// EXPORTS //
+
+module.exports = numCodePoints;
diff --git a/lib/node_modules/@stdlib/string/num-code-points/package.json b/lib/node_modules/@stdlib/string/num-code-points/package.json
new file mode 100644
index 000000000000..dec608eca593
--- /dev/null
+++ b/lib/node_modules/@stdlib/string/num-code-points/package.json
@@ -0,0 +1,73 @@
+{
+ "name": "@stdlib/string/num-code-points",
+ "version": "0.0.0",
+ "description": "Return the number of code points in a string.",
+ "license": "Apache-2.0",
+ "author": {
+ "name": "The Stdlib Authors",
+ "url": "https://github.com/stdlib-js/stdlib/graphs/contributors"
+ },
+ "contributors": [
+ {
+ "name": "The Stdlib Authors",
+ "url": "https://github.com/stdlib-js/stdlib/graphs/contributors"
+ }
+ ],
+ "bin": {
+ "num-code-points": "./bin/cli"
+ },
+ "main": "./lib",
+ "directories": {
+ "benchmark": "./benchmark",
+ "doc": "./docs",
+ "example": "./examples",
+ "lib": "./lib",
+ "test": "./test"
+ },
+ "types": "./docs/types",
+ "scripts": {},
+ "homepage": "https://github.com/stdlib-js/stdlib",
+ "repository": {
+ "type": "git",
+ "url": "git://github.com/stdlib-js/stdlib.git"
+ },
+ "bugs": {
+ "url": "https://github.com/stdlib-js/stdlib/issues"
+ },
+ "dependencies": {},
+ "devDependencies": {},
+ "engines": {
+ "node": ">=0.10.0",
+ "npm": ">2.7.0"
+ },
+ "os": [
+ "aix",
+ "darwin",
+ "freebsd",
+ "linux",
+ "macos",
+ "openbsd",
+ "sunos",
+ "win32",
+ "windows"
+ ],
+ "keywords": [
+ "stdlib",
+ "stdstring",
+ "utilities",
+ "utility",
+ "utils",
+ "util",
+ "string",
+ "str",
+ "length",
+ "len",
+ "unicode",
+ "code",
+ "point",
+ "segmentation",
+ "surrogate",
+ "astral",
+ "emojis"
+ ]
+}
diff --git a/lib/node_modules/@stdlib/string/num-code-points/test/fixtures/stdin_error.js.txt b/lib/node_modules/@stdlib/string/num-code-points/test/fixtures/stdin_error.js.txt
new file mode 100644
index 000000000000..7b3cc56df0fa
--- /dev/null
+++ b/lib/node_modules/@stdlib/string/num-code-points/test/fixtures/stdin_error.js.txt
@@ -0,0 +1,33 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2025 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.
+*/
+
+var proc = require( 'process' );
+var resolve = require( 'path' ).resolve;
+var proxyquire = require( 'proxyquire' );
+
+var fpath = resolve( __dirname, '..', 'bin', 'cli' );
+
+proc.stdin.isTTY = false;
+
+proxyquire( fpath, {
+ '@stdlib/process/read-stdin': stdin
+});
+
+function stdin( clbk ) {
+ clbk( new Error( 'beep' ) );
+}
diff --git a/lib/node_modules/@stdlib/string/num-code-points/test/test.cli.js b/lib/node_modules/@stdlib/string/num-code-points/test/test.cli.js
new file mode 100644
index 000000000000..2b99d0b19f25
--- /dev/null
+++ b/lib/node_modules/@stdlib/string/num-code-points/test/test.cli.js
@@ -0,0 +1,261 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2025 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 resolve = require( 'path' ).resolve;
+var exec = require( 'child_process' ).exec;
+var tape = require( 'tape' );
+var IS_BROWSER = require( '@stdlib/assert/is-browser' );
+var IS_WINDOWS = require( '@stdlib/assert/is-windows' );
+var replace = require( '@stdlib/string/replace' );
+var readFileSync = require( '@stdlib/fs/read-file' ).sync;
+var EXEC_PATH = require( '@stdlib/process/exec-path' );
+
+
+// VARIABLES //
+
+var fpath = resolve( __dirname, '..', 'bin', 'cli' );
+var opts = {
+ 'skip': IS_BROWSER || IS_WINDOWS
+};
+
+
+// FIXTURES //
+
+var PKG_VERSION = require( './../package.json' ).version;
+
+
+// TESTS //
+
+tape( 'command-line interface', function test( t ) {
+ t.ok( true, __filename );
+ t.end();
+});
+
+tape( 'when invoked with a `--help` flag, the command-line interface prints the help text to `stderr`', opts, function test( t ) {
+ var expected;
+ var cmd;
+
+ expected = readFileSync( resolve( __dirname, '..', 'docs', 'usage.txt' ), {
+ 'encoding': 'utf8'
+ });
+ cmd = [
+ EXEC_PATH,
+ fpath,
+ '--help'
+ ];
+
+ exec( cmd.join( ' ' ), done );
+
+ function done( error, stdout, stderr ) {
+ if ( error ) {
+ t.fail( error.message );
+ } else {
+ t.strictEqual( stdout.toString(), '', 'does not print to `stdout`' );
+ t.strictEqual( stderr.toString(), expected+'\n', 'expected value' );
+ }
+ t.end();
+ }
+});
+
+tape( 'when invoked with a `-h` flag, the command-line interface prints the help text to `stderr`', opts, function test( t ) {
+ var expected;
+ var cmd;
+
+ expected = readFileSync( resolve( __dirname, '..', 'docs', 'usage.txt' ), {
+ 'encoding': 'utf8'
+ });
+ cmd = [
+ EXEC_PATH,
+ fpath,
+ '-h'
+ ];
+
+ exec( cmd.join( ' ' ), done );
+
+ function done( error, stdout, stderr ) {
+ if ( error ) {
+ t.fail( error.message );
+ } else {
+ t.strictEqual( stdout.toString(), '', 'does not print to `stdout`' );
+ t.strictEqual( stderr.toString(), expected+'\n', 'expected value' );
+ }
+ t.end();
+ }
+});
+
+tape( 'when invoked with a `--version` flag, the command-line interface prints the version to `stderr`', opts, function test( t ) {
+ var cmd = [
+ EXEC_PATH,
+ fpath,
+ '--version'
+ ];
+
+ exec( cmd.join( ' ' ), done );
+
+ function done( error, stdout, stderr ) {
+ if ( error ) {
+ t.fail( error.message );
+ } else {
+ t.strictEqual( stdout.toString(), '', 'does not print to `stdout`' );
+ t.strictEqual( stderr.toString(), PKG_VERSION+'\n', 'expected value' );
+ }
+ t.end();
+ }
+});
+
+tape( 'when invoked with a `-V` flag, the command-line interface prints the version to `stderr`', opts, function test( t ) {
+ var cmd = [
+ EXEC_PATH,
+ fpath,
+ '-V'
+ ];
+
+ exec( cmd.join( ' ' ), done );
+
+ function done( error, stdout, stderr ) {
+ if ( error ) {
+ t.fail( error.message );
+ } else {
+ t.strictEqual( stdout.toString(), '', 'does not print to `stdout`' );
+ t.strictEqual( stderr.toString(), PKG_VERSION+'\n', 'expected value' );
+ }
+ t.end();
+ }
+});
+
+tape( 'the command-line interface prints the number of code points', opts, function test( t ) {
+ var cmd = [
+ EXEC_PATH,
+ '-e',
+ '"process.stdin.isTTY = true; process.argv[ 2 ] = \'beep\\nboop\'; require( \''+fpath+'\' );"'
+ ];
+
+ exec( cmd.join( ' ' ), done );
+
+ function done( error, stdout, stderr ) {
+ if ( error ) {
+ t.fail( error.message );
+ } else {
+ t.strictEqual( stdout.toString(), '9\n', 'expected value' );
+ t.strictEqual( stderr.toString(), '', 'does not print to `stderr`' );
+ }
+ t.end();
+ }
+});
+
+tape( 'when invoked with a `-l` flag, the command-line interface prints the number of code points for individual lines', opts, function test( t ) {
+ var cmd = [
+ EXEC_PATH,
+ '-e',
+ '"process.stdin.isTTY = true; process.argv[ 2 ] = \'beep\\nboop\'; process.argv[ 3 ] = \'-l\'; require( \''+fpath+'\' );"'
+ ];
+
+ exec( cmd.join( ' ' ), done );
+
+ function done( error, stdout, stderr ) {
+ if ( error ) {
+ t.fail( error.message );
+ } else {
+ t.strictEqual( stdout.toString(), '4\n4\n', 'expected value' );
+ t.strictEqual( stderr.toString(), '', 'does not print to `stderr`' );
+ }
+ t.end();
+ }
+});
+
+tape( 'the command-line interface supports use as a standard stream', opts, function test( t ) {
+ var cmd = [
+ 'printf "beep\nboop六"',
+ '|',
+ EXEC_PATH,
+ fpath
+ ];
+
+ exec( cmd.join( ' ' ), done );
+
+ function done( error, stdout, stderr ) {
+ if ( error ) {
+ t.fail( error.message );
+ } else {
+ t.strictEqual( stdout.toString(), '10\n', 'expected value' );
+ t.strictEqual( stderr.toString(), '', 'does not print to `stderr`' );
+ }
+ t.end();
+ }
+});
+
+tape( 'when used as a standard stream with `-l` flag, the command-line interface prints the number of code points for each line', opts, function test( t ) {
+ var cmd = [
+ 'printf "beep\nboop六"',
+ '|',
+ EXEC_PATH,
+ fpath,
+ '-l'
+ ];
+
+ exec( cmd.join( ' ' ), done );
+
+ function done( error, stdout, stderr ) {
+ if ( error ) {
+ t.fail( error.message );
+ } else {
+ t.strictEqual( stdout.toString(), '4\n5\n', 'expected value' );
+ t.strictEqual( stderr.toString(), '', 'does not print to `stderr`' );
+ }
+ t.end();
+ }
+});
+
+tape( 'when used as a standard stream, if an error is encountered when reading from `stdin`, the command-line interface prints an error and sets a non-zero exit code', opts, function test( t ) {
+ var script;
+ var opts;
+ var cmd;
+
+ script = readFileSync( resolve( __dirname, 'fixtures', 'stdin_error.js.txt' ), {
+ 'encoding': 'utf8'
+ });
+
+ // Replace single quotes with double quotes:
+ script = replace( script, '\'', '"' );
+
+ cmd = [
+ EXEC_PATH,
+ '-e',
+ '\''+script+'\''
+ ];
+
+ opts = {
+ 'cwd': __dirname
+ };
+
+ exec( cmd.join( ' ' ), opts, done );
+
+ function done( error, stdout, stderr ) {
+ if ( error ) {
+ t.pass( error.message );
+ t.strictEqual( error.code, 1, 'expected exit code' );
+ }
+ t.strictEqual( stdout.toString(), '', 'does not print to `stdout`' );
+ t.strictEqual( stderr.toString(), 'Error: beep\n', 'expected value' );
+ t.end();
+ }
+});
diff --git a/lib/node_modules/@stdlib/string/num-code-points/test/test.js b/lib/node_modules/@stdlib/string/num-code-points/test/test.js
new file mode 100644
index 000000000000..e4b2684c2978
--- /dev/null
+++ b/lib/node_modules/@stdlib/string/num-code-points/test/test.js
@@ -0,0 +1,98 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2025 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 tape = require( 'tape' );
+var numCodePoints = require( './../lib' );
+
+
+// TESTS //
+
+tape( 'main export is a function', function test( t ) {
+ t.ok( true, __filename );
+ t.strictEqual( typeof numCodePoints, 'function', 'main export is a function' );
+ t.end();
+});
+
+tape( 'the function throws an error if not provided a string', function test( t ) {
+ var values;
+ var i;
+
+ values = [
+ 5,
+ null,
+ true,
+ void 0,
+ NaN,
+ [],
+ {},
+ function noop() {}
+ ];
+
+ for ( i = 0; i < values.length; i++ ) {
+ t.throws( badValue( values[i] ), TypeError, 'throws an error when provided '+values[i] );
+ }
+ t.end();
+
+ function badValue( value ) {
+ return function badValue() {
+ numCodePoints( value );
+ };
+ }
+});
+
+tape( 'the function returns 0 if provided an empty string', function test( t ) {
+ t.strictEqual( numCodePoints( '' ), 0, 'returns expected value' );
+ t.end();
+});
+
+tape( 'the function returns the Unicode aware length of a provided string', function test( t ) {
+ var out;
+
+ out = numCodePoints( 'hello world' );
+ t.strictEqual( out, 11, 'returns expected value' );
+
+ out = numCodePoints( '!!!' );
+ t.strictEqual( out, 3, 'returns expected value' );
+
+ out = numCodePoints( 'अनुच्छेद' );
+ t.strictEqual( out, 8, 'returns expected value' );
+
+ out = numCodePoints( '六' );
+ t.strictEqual( out, 1, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function returns the number of code points (surrogates)', function test( t ) {
+ var out;
+
+ out = numCodePoints( '𐒻𐓟' );
+ t.strictEqual( out, 2, 'returns expected value' );
+
+ out = numCodePoints( '𐒻' );
+ t.strictEqual( out, 1, 'returns expected value' );
+
+ out = numCodePoints( '\uD800' ); // trailing unpaired high surrogate
+ t.strictEqual( out, 1, 'returns expected value' );
+
+ t.end();
+});