@stdlib/regexp-filename

Return a regular expression to split a filename.

Usage no npm install needed!

<script type="module">
  import stdlibRegexpFilename from 'https://cdn.skypack.dev/@stdlib/regexp-filename';
</script>

README

Filename

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Regular expression to split a filename.

Installation

npm install @stdlib/regexp-filename

Usage

var reFilename = require( '@stdlib/regexp-filename' );

reFilename( [platform] )

Returns a regular expression to split a filename.

var RE = reFilename();
// returns <RegExp>

RE = reFilename( 'posix' );
// returns <RegExp>

var parts = RE.exec( '/foo/bar/index.js' ).slice();
/* returns
    [
        '/foo/bar/index.js',  // input value
        '/',                  // root
        'foo/bar/',           // dirname
        'index.js',           // basename
        '.js'                 // extname
    ]
*/

RE = reFilename( 'win32' );
// returns <RegExp>

parts = RE.exec( 'C:\\foo\\bar\\index.js' ).slice();
/* returns
    [
        'C:\\foo\\bar\\index.js',   // input value
        'C:',                       // device
        '\\',                       // slash
        'foo\\bar\\',               // dirname
        'index.js',                 // basename
        '.js'                       // extname
    ]
*/

reFilename.REGEXP

Regular expression to split a filename.

var bool = ( reFilename.REGEXP.toString() === reFilename().toString() );
// returns true

reFilename.REGEXP_POSIX

Regular expression to split a POSIX filename.

var parts = reFilename.REGEXP_POSIX.exec( '/foo/bar/index.js' ).slice();
/* returns
    [
        '/foo/bar/index.js',  // input value
        '/',                  // root
        'foo/bar/',           // dirname
        'index.js',           // basename
        '.js'                 // extname
    ]
*/

reFilename.REGEXP_WIN32

Regular expression to split a Windows filename.

var parts = reFilename.REGEXP_WIN32.exec( 'C:\\foo\\bar\\index.js' ).slice();
/* returns
    [
        'C:\\foo\\bar\\index.js',   // input value
        'C:',                       // device
        '\\',                       // slash
        'foo\\bar\\',               // dirname
        'index.js',                 // basename
        '.js'                       // extname
    ]
*/

Notes

  • The as REGEXP exported regular expression is platform-dependent. If the current process is running on Windows, REGEXP === REGEXP_WIN32; otherwise, REGEXP === REGEXP_POSIX.

Examples

var reFilename = require( '@stdlib/regexp-filename' );
var RE_FILENAME = reFilename();

// Assuming a POSIX platform...
var parts = RE_FILENAME.exec( '/foo/bar/index.js' ).slice();
/* returns
    [
        '/foo/bar/index.js',
        '/',
        'foo/bar/',
        'index.js',
        '.js'
    ]
*/

parts = reFilename.REGEXP_POSIX.exec( '/foo/bar/home.html' ).slice();
/* returns
    [
        '/foo/bar/home.html',
        '/',
        'foo/bar/',
        'home.html',
        '.html'
    ]
*/

parts = reFilename.REGEXP_WIN32.exec( 'C:\\foo\\bar\\home.html' ).slice();
/* returns
    [
        'C:\\foo\\bar\\home.html',
        'C:',
        '\\',
        'foo\\bar\\',
        'home.html',
        '.html'
    ]
*/

See Also

Notice

This package is part of stdlib, a standard library for JavaScript and Node.js, with an emphasis on numerical and scientific computing. The library provides a collection of robust, high performance libraries for mathematics, statistics, streams, utilities, and more.

For more information on the project, filing bug reports and feature requests, and guidance on how to develop stdlib, see the main project repository.

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License

See LICENSE.

Copyright

Copyright © 2016-2022. The Stdlib Authors.