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feat: add complex/parse-float64 #1362

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130 changes: 130 additions & 0 deletions lib/node_modules/@stdlib/complex/parse-float64/README.md
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<!--

@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.

-->

# parseComplex128

> Parse a string representation of a 128-bit [complex number][@stdlib/complex/float64].

<!-- 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 parseComplex128 = require( '@stdlib/complex/parse-float64' );
```

#### parseComplex128( str )

Parse a string representation of a 128-bit [complex number][@stdlib/complex/float64].

```javascript
var real = require( '@stdlib/complex/real' );
var imag = require( '@stdlib/complex/imag' );

var str = '5 + 3j';

var z = parseComplex128( str );
// returns <Complex128>

var re = real( z );
// returns 5.0

var im = imag( z );
// returns 3.0
```

For details on the string format, see [Complex128][@stdlib/complex/float64].

</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 isComplex128 = require( '@stdlib/assert/is-complex128' );
var parseComplex128 = require( '@stdlib/complex/parse-float64' );

var str = '1e3 - 2.75j';

var z = parseComplex128( str );
var bool = ( isComplex128(z) );
// returns true

bool = ( z.re === 1e3 );
// returns true

bool = ( z.im === -2.75 );
// returns true
```

</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">

[@stdlib/complex/float64]: https://github.com/stdlib-js/stdlib/tree/develop/lib/node_modules/%40stdlib/complex/float64

</section>

<!-- /.links -->
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/**
* @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 isComplex128 = require( '@stdlib/assert/is-complex128' );
var pkg = require( './../package.json' ).name;
var parse = require( './../lib' );


// MAIN //

bench( pkg, function benchmark( b ) {
var str;
var z;
var i;

b.tic();
for ( i = 0; i < b.iterations; i++ ) {
str = i + ' + ' + (i+1) + 'j';
z = parse( str );
if ( !(isComplex128(z)) ) {
b.fail( 'should return a Complex128' );
}
}
b.toc();
if ( !(isComplex128(z)) ) {
b.fail( 'should return a Complex128' );
}
b.pass( 'benchmark finished' );
b.end();
});
24 changes: 24 additions & 0 deletions lib/node_modules/@stdlib/complex/parse-float64/docs/repl.txt
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{{alias}}( str )
Parse a string representation of a 128-bit complex number.

Parameters
----------
str: string
String representation of a complex number.

Returns
-------
out: Complex128
If the string is recognized as a complex number, a
Complex128 instance is returned.
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Examples
--------
> var str = '5 + 3j';
> var z = {{alias}}( str )
<Complex128>


See Also
--------
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/*
* @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

interface Complex128 {
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re: number;
im: number;
}

/**
* Parse a string representation of a 128-bit complex number.
*
* @param str - string representation of a complex number
* @returns Complex128 instance
* @throws Will throw an error if the string is not recognized as a complex number
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*
* @example
* var str = '5 + 3j';
*
* var z = parseComplex128( str );
* // returns <Complex128>
*/
declare function parseComplex128( str: string ): Complex128;


// EXPORTS //

export = parseComplex128;
70 changes: 70 additions & 0 deletions lib/node_modules/@stdlib/complex/parse-float64/docs/types/test.ts
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/*
* @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 parseComplex128 = require( './index' );


// TESTS //

// The function parses a string representation of a complex number...
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{
const str = '5 + 3.5j';
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parseComplex128( str ); // $ExpectType Complex128
}

// The function parses a string representation of a complex number (only real part)...
{
const str = '3';
parseComplex128( str ); // $ExpectType Complex128
}

// The function parses a string representation of a complex number (only imaginary part)...
{
const str = '-8j';
parseComplex128( str ); // $ExpectType Complex128
}

// The function parses a string representation of a complex number (NaN)...
{
const str = 'NaN + NaNj';
parseComplex128( str ); // $ExpectType Complex128
}

// The function parses a string representation of a complex number (Infinity)...
{
const str = 'Infinity - Infinityj';
parseComplex128( str ); // $ExpectType Complex128
}

// The function parses a string representation of a complex number (scientific notation)...
{
const str = '1e3 + 1e-3j';
parseComplex128( str ); // $ExpectType Complex128
}

// The compiler throws an error if the function is provided a first argument that is not a string...
{
parseComplex128( true ); // $ExpectError
parseComplex128( false ); // $ExpectError
parseComplex128( null ); // $ExpectError
parseComplex128( undefined ); // $ExpectError
parseComplex128( 5 ); // $ExpectError
parseComplex128( [] ); // $ExpectError
parseComplex128( {} ); // $ExpectError
parseComplex128( ( x: number ): number => x ); // $ExpectError
}
40 changes: 40 additions & 0 deletions lib/node_modules/@stdlib/complex/parse-float64/examples/index.js
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/**
* @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 isComplex128 = require( '@stdlib/assert/is-complex128' );
var parseComplex128 = require( './../lib' );

var str = '-0.5 + 1.25j';

var z = parseComplex128( str );
console.log( z );
// => <Complex128>

var bool = ( isComplex128(z) );
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console.log( bool );
// => true

bool = ( z.re === -0.5 );
console.log( bool );
// => true

bool = ( z.im === 1.25 );
console.log( bool );
// => true
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