feat: refactor string/remove-last

This commit adds 3 new base string packages for removing code units, code points, and grapheme clusters, respectively. This commit subsequently refactors `string/remove-last` to depend on those base packages. As a consequence, a new option has been added to `string/remove-last` to select which processing "mode" is desired in order to balance performance considerations.

Additionally, this commit fixes a bug in `string/remove-first` due to an off-by-one indexing error.

Lastly, this commit fixes the `name` field in `string/base/remove-first*` `package.json` files.

PR-URL: 	#1079
Co-authored-by: Athan Reines <kgryte@gmail.com>
Reviewed-by: Athan Reines <kgryte@gmail.com> 
Ref: #1062

lib/node_modules/@stdlib/string/base/remove-first-code-point/lib/main.js

@@ -85,7 +85,7 @@ function removeFirst( str, n ) {
 			break;
 		}
 	}
-	return str.substring( cnt, str.length );
+	return str.substring( i + 1, str.length );
 }
 
 

lib/node_modules/@stdlib/string/base/remove-first-code-point/package.json

@@ -1,5 +1,5 @@
 {
-  "name": "@stdlib/string/base/first-code-point",
+  "name": "@stdlib/string/base/remove-first-code-point",
   "version": "0.0.0",
   "description": "Remove the first Unicode code point of a string.",
   "license": "Apache-2.0",

lib/node_modules/@stdlib/string/base/remove-first-code-point/test/test.js

@@ -68,6 +68,12 @@ tape( 'the function removes the first Unicode code point of a provided string (U
 	out = removeFirst( '六书/六書', 1 );
 	t.strictEqual( out, '书/六書', 'returns expected value' );
 
+	out = removeFirst( '𐒻𐓟', 1 );
+	t.strictEqual( out, '𐓟', 'returns expected value' );
+
+	out = removeFirst( '\uD800', 1 );
+	t.strictEqual( out, '', 'returns expected value' );
+
 	t.end();
 });
 
@@ -92,5 +98,8 @@ tape( 'the function supports removing the first `n` Unicode code points of a pro
 	out = removeFirst( '六书/六書', 3 );
 	t.strictEqual( out, '六書', 'returns expected value' );
 
+	out = removeFirst( '𐓟𐒻𐓟', 2 );
+	t.strictEqual( out, '𐓟', 'returns expected value' );
+
 	t.end();
 });

lib/node_modules/@stdlib/string/base/remove-first-grapheme-cluster/package.json

@@ -1,5 +1,5 @@
 {
-  "name": "@stdlib/string/base/first-grapheme-cluster",
+  "name": "@stdlib/string/base/remove-first-grapheme-cluster",
   "version": "0.0.0",
   "description": "Remove the first grapheme cluster (i.e., user-perceived character) of a string.",
   "license": "Apache-2.0",

lib/node_modules/@stdlib/string/base/remove-first/package.json

@@ -1,5 +1,5 @@
 {
-  "name": "@stdlib/string/base/first",
+  "name": "@stdlib/string/base/remove-first",
   "version": "0.0.0",
   "description": "Remove the first UTF-16 code unit of a string.",
   "license": "Apache-2.0",

lib/node_modules/@stdlib/string/base/remove-last-code-point/README.md

@@ -0,0 +1,95 @@
+<!--
+
+@license Apache-2.0
+
+Copyright (c) 2023 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.
+
+-->
+
+# removeLastCodePoint
+
+> Remove the last `n` Unicode code points of a string.
+
+<section class="usage">
+
+## Usage
+
+```javascript
+var removeLastCodePoint = require( '@stdlib/string/base/remove-last-code-point' );
+```
+
+#### removeLastCodePoint( str, n )
+
+Removes the last `n` Unicode code points of a string.
+
+```javascript
+var out = removeLastCodePoint( 'last man standing', 1 );
+// returns 'last man standin'
+
+out = removeLastCodePoint( 'Hidden Treasures', 1 );
+// returns 'Hidden Treasure'
+
+out = removeLastCodePoint( 'foo bar', 5 );
+// returns 'fo'
+
+out = removeLastCodePoint( 'foo bar', 10 );
+// returns ''
+```
+
+</section>
+
+<!-- /.usage -->
+
+<section class="examples">
+
+## Examples
+
+<!-- eslint no-undef: "error" -->
+
+```javascript
+var removeLastCodePoint = require( '@stdlib/string/base/remove-last-code-point' );
+
+var str = removeLastCodePoint( 'presidential election', 1 );
+// returns 'presidential electio'
+
+str = removeLastCodePoint( 'JavaScript', 1 );
+// returns 'JavaScrip'
+
+str = removeLastCodePoint( 'The Last of the Mohicans', 5 );
+// returns 'The Last of the Moh'
+
+str = removeLastCodePoint( 'अनुच्छेद', 1 );
+// returns 'अनुच्छे'
+```
+
+</section>
+
+<!-- /.examples -->
+
+<!-- Section for related `stdlib` packages. Do not manually edit this section, as it is automatically populated. -->
+
+<section class="related">
+
+</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">
+
+</section>
+
+<!-- /.links -->

lib/node_modules/@stdlib/string/base/remove-last-code-point/benchmark/benchmark.js

@@ -0,0 +1,56 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2023 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 isString = require( '@stdlib/assert/is-string' ).isPrimitive;
+var pkg = require( './../package.json' ).name;
+var removeLast = require( './../lib' );
+
+
+// MAIN //
+
+bench( pkg, function benchmark( b ) {
+	var values;
+	var out;
+	var i;
+
+	values = [
+		'beep boop',
+		'foo bar',
+		'xyz abc',
+		'🐶🐮🐷🐰🐸'
+	];
+
+	b.tic();
+	for ( i = 0; i < b.iterations; i++ ) {
+		out = removeLast( values[ i%values.length ], 1 );
+		if ( typeof out !== 'string' ) {
+			b.fail( 'should return a string' );
+		}
+	}
+	b.toc();
+	if ( !isString( out ) ) {
+		b.fail( 'should return a string' );
+	}
+	b.pass( 'benchmark finished' );
+	b.end();
+});

lib/node_modules/@stdlib/string/base/remove-last-code-point/docs/repl.txt

@@ -0,0 +1,29 @@
+
+{{alias}}( str, n )
+    Removes the last `n` Unicode code points of a string.
+
+    Parameters
+    ----------
+    str: string
+        Input string.
+
+    n: integer
+        Number of Unicode code points to remove.
+
+    Returns
+    -------
+    out: string
+        Output string.
+
+    Examples
+    --------
+    > var out = {{alias}}( 'beep', 1 )
+    'bee'
+    > out = {{alias}}( 'Boop', 1 )
+    'Boo'
+    > out = {{alias}}( 'foo bar', 5 )
+    'fo'
+
+    See Also
+    --------
+

lib/node_modules/@stdlib/string/base/remove-last-code-point/docs/types/index.d.ts

@@ -0,0 +1,53 @@
+/*
+* @license Apache-2.0
+*
+* Copyright (c) 2023 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
+
+/**
+* Removes the last `n` Unicode code points of a string.
+*
+* @param str - input string
+* @param n - number of code points to remove
+* @returns output string
+*
+* @example
+* var out = removeLast( 'last man standing', 1 );
+* // returns 'last man standin'
+*
+* @example
+* var out = removeLast( 'presidential election', 1 );
+* // returns 'presidential electio'
+*
+* @example
+* var out = removeLast( 'JavaScript', 1 );
+* // returns 'JavaScrip'
+*
+* @example
+* var out = removeLast( 'Hidden Treasures', 1 );
+* // returns 'Hidden Treasure'
+*
+* @example
+* var out = removeLast( 'foo bar', 5 );
+* // returns 'fo'
+*/
+declare function removeLast( str: string, n: number ): string;
+
+
+// EXPORTS //
+
+export = removeLast;

lib/node_modules/@stdlib/string/base/remove-last-code-point/docs/types/test.ts

@@ -0,0 +1,57 @@
+/*
+* @license Apache-2.0
+*
+* Copyright (c) 2023 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 removeLast = require( './index' );
+
+
+// TESTS //
+
+// The function returns a string...
+{
+	removeLast( 'abc', 1 ); // $ExpectType string
+}
+
+// The compiler throws an error if the function is provided a value other than a string...
+{
+	removeLast( true, 1 ); // $ExpectError
+	removeLast( false, 1 ); // $ExpectError
+	removeLast( null, 1 ); // $ExpectError
+	removeLast( undefined, 1 ); // $ExpectError
+	removeLast( 5, 1 ); // $ExpectError
+	removeLast( [], 1 ); // $ExpectError
+	removeLast( {}, 1 ); // $ExpectError
+	removeLast( ( x: number ): number => x, 1 ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided a second argument that is not a number...
+{
+	removeLast( 'abc', true ); // $ExpectError
+	removeLast( 'abc', false ); // $ExpectError
+	removeLast( 'abc', null ); // $ExpectError
+	removeLast( 'abc', 'abc' ); // $ExpectError
+	removeLast( 'abc', [] ); // $ExpectError
+	removeLast( 'abc', {} ); // $ExpectError
+	removeLast( 'abc', ( x: number ): number => x ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided an unsupported number of arguments...
+{
+	removeLast(); // $ExpectError
+	removeLast( 'abc' ); // $ExpectError
+	removeLast( 'abc', 1, 2 ); // $ExpectError
+}

lib/node_modules/@stdlib/string/base/remove-last-code-point/examples/index.js

@@ -0,0 +1,33 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2023 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 removeLastCodePoint = require( './../lib' );
+
+console.log( removeLastCodePoint( 'presidential election', 1 ) );
+// => 'presidential electio'
+
+console.log( removeLastCodePoint( 'JavaScript', 1 ) );
+// => 'JavaScrip'
+
+console.log( removeLastCodePoint( 'The Last of the Mohicans', 5 ) );
+// => 'The Last of the Moh'
+
+console.log( removeLastCodePoint( 'अनुच्छेद', 1 ) );
+// => 'अनुच्छे'