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CHANGELOG.md

@@ -995,6 +995,28 @@ This release closes the following issue:
 
 <!-- /.package -->
 
+<section class="package" id="blas-base-matrix-triangle-resolve-str-unreleased">
+
+#### [@stdlib/blas/base/matrix-triangle-resolve-str](https://github.com/stdlib-js/stdlib/tree/develop/lib/node_modules/%40stdlib/blas/base/matrix-triangle-resolve-str)
+
+<details>
+
+<section class="features">
+
+##### Features
+
+-   [`50316e4`](https://github.com/stdlib-js/stdlib/commit/50316e43a7f59092f56aebcd2acfa815871ae3bf) - add `blas/base/matrix-triangle-resolve-str` [(#2496)](https://github.com/stdlib-js/stdlib/pull/2496)
+
+</section>
+
+<!-- /.features -->
+
+</details>
+
+</section>
+
+<!-- /.package -->
+
 <section class="package" id="blas-base-matrix-triangle-str2enum-unreleased">
 
 #### [@stdlib/blas/base/matrix-triangle-str2enum](https://github.com/stdlib-js/stdlib/tree/develop/lib/node_modules/%40stdlib/blas/base/matrix-triangle-str2enum)
@@ -2389,6 +2411,7 @@ A total of 35 people contributed to this release. Thank you to the following con
 
 <details>
 
+-   [`50316e4`](https://github.com/stdlib-js/stdlib/commit/50316e43a7f59092f56aebcd2acfa815871ae3bf) - **feat:** add `blas/base/matrix-triangle-resolve-str` [(#2496)](https://github.com/stdlib-js/stdlib/pull/2496) _(by Pranav Goswami, Athan Reines)_
 -   [`1493a14`](https://github.com/stdlib-js/stdlib/commit/1493a1446311df5c8b643e3429dba4c8850fc227) - **feat:** add `blas/base/diagonal-type-*` utilities [(#2498)](https://github.com/stdlib-js/stdlib/pull/2498) _(by Pranav Goswami, Athan Reines)_
 -   [`04b3803`](https://github.com/stdlib-js/stdlib/commit/04b3803f90e84a700d42da7c1f0117b4676b2040) - **feat:** add `blas/base/operation-side-*` utilities [(#2499)](https://github.com/stdlib-js/stdlib/pull/2499) _(by Pranav Goswami, Athan Reines)_
 -   [`a61b40c`](https://github.com/stdlib-js/stdlib/commit/a61b40cedd7518a68efb28372e4bf817aeb5a319) - **feat:** add `blas/base/matrix-triangle-str2enum` and `blas/base/matrix-triangle/enum2str` [(#2495)](https://github.com/stdlib-js/stdlib/pull/2495) _(by Pranav Goswami, Athan Reines)_

base/matrix-triangle-resolve-str/README.md

@@ -0,0 +1,121 @@
+<!--
+
+@license Apache-2.0
+
+Copyright (c) 2024 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.
+
+-->
+
+# resolve
+
+> Return the matrix triangle string associated with a supported BLAS matrix triangle value.
+
+<!-- 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 resolve = require( '@stdlib/blas/base/matrix-triangle-resolve-str' );
+```
+
+#### resolve( value )
+
+Returns the matrix triangle string associated with a BLAS matrix triangle value.
+
+```javascript
+var str2enum = require( '@stdlib/blas/base/matrix-triangle-str2enum' );
+
+var v = resolve( 'upper' );
+// returns 'upper'
+
+v = resolve( str2enum( 'upper' ) );
+// returns 'upper'
+```
+
+If unable to resolve a matrix triangle string, the function returns `null`.
+
+```javascript
+var v = resolve( 'beep' );
+// returns null
+```
+
+</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">
+
+</section>
+
+<!-- /.notes -->
+
+<!-- Package usage examples. -->
+
+<section class="examples">
+
+## Examples
+
+<!-- eslint no-undef: "error" -->
+
+```javascript
+var str2enum = require( '@stdlib/blas/base/matrix-triangle-str2enum' );
+var resolve = require( '@stdlib/blas/base/matrix-triangle-resolve-str' );
+
+var v = resolve( str2enum( 'upper' ) );
+// returns 'upper'
+
+v = resolve( str2enum( 'lower' ) );
+// returns 'lower'
+```
+
+</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">
+
+</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 -->

base/matrix-triangle-resolve-str/benchmark/benchmark.js

@@ -0,0 +1,80 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2024 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 str2enum = require( './../../../base/matrix-triangle-str2enum' );
+var pkg = require( './../package.json' ).name;
+var resolve = require( './../lib' );
+
+
+// MAIN //
+
+bench( pkg+'::string', function benchmark( b ) {
+	var values;
+	var out;
+	var i;
+
+	values = [
+		'upper',
+		'lower'
+	];
+
+	b.tic();
+	for ( i = 0; i < b.iterations; i++ ) {
+		out = resolve( values[ i%values.length ] );
+		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();
+});
+
+bench( pkg+'::integer', function benchmark( b ) {
+	var values;
+	var out;
+	var i;
+
+	values = [
+		str2enum( 'upper' ),
+		str2enum( 'lower' )
+	];
+
+	b.tic();
+	for ( i = 0; i < b.iterations; i++ ) {
+		out = resolve( values[ i%values.length ] );
+		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();
+});

base/matrix-triangle-resolve-str/docs/repl.txt

@@ -0,0 +1,25 @@
+
+{{alias}}( value )
+    Returns the matrix triangle string associated with a supported BLAS matrix
+    triangle value.
+
+    Parameters
+    ----------
+    value: any
+        Matrix triangle value.
+
+    Returns
+    -------
+    out: string|null
+        Matrix triangle string.
+
+    Examples
+    --------
+    > var out = {{alias}}( 'upper' )
+    'upper'
+    > out = {{alias}}( {{alias:@stdlib/blas/base/matrix-triangle-str2enum}}( 'upper' ) )
+    'upper'
+
+    See Also
+    --------
+

base/matrix-triangle-resolve-str/docs/types/index.d.ts

@@ -0,0 +1,38 @@
+/*
+* @license Apache-2.0
+*
+* Copyright (c) 2024 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
+
+/**
+* Returns the matrix triangle string associated with a BLAS matrix triangle value.
+*
+* @param value - matrix triangle value
+* @returns matrix triangle string
+*
+* @example
+* var str2enum = require( '@stdlib/blas/base/matrix-triangle-str2enum' );
+*
+* var v = resolve( str2enum( 'upper' ) );
+* // returns 'upper'
+*/
+declare function resolve( value: any ): string | null;
+
+
+// EXPORTS //
+
+export = resolve;

base/matrix-triangle-resolve-str/docs/types/test.ts

@@ -0,0 +1,28 @@
+/*
+* @license Apache-2.0
+*
+* Copyright (c) 2024 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 resolve = require( './index' );
+
+
+// TESTS //
+
+// The function returns a string or null...
+{
+	resolve( 0 ); // $ExpectType string | null
+	resolve( 'upper' ); // $ExpectType string | null
+}

base/matrix-triangle-resolve-str/examples/index.js

@@ -0,0 +1,30 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2024 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 str2enum = require( './../../../base/matrix-triangle-str2enum' );
+var resolve = require( './../lib' );
+
+var v = resolve( str2enum( 'upper' ) );
+console.log( v );
+// => 'upper'
+
+v = resolve( str2enum( 'lower' ) );
+console.log( v );
+// => 'lower'