@stdlib/regexp-extname-windows

Return a regular expression to capture a Windows filename extension.

Usage no npm install needed!

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  import stdlibRegexpExtnameWindows from 'https://cdn.skypack.dev/@stdlib/regexp-extname-windows';
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README

Filename Extension

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Regular expression to capture a Windows filename extension.

Installation

npm install @stdlib/regexp-extname-windows

Usage

var reExtnameWindows = require( '@stdlib/regexp-extname-windows' );

reExtnameWindows()

Returns a regular expression to capture a Windows filename extension.

var RE_EXTNAME_WINDOWS = reExtnameWindows();
var ext = RE_EXTNAME_WINDOWS.exec( 'index.js' )[ 1 ];
// returns '.js'

reExtnameWindows.REGEXP

Regular expression to capture a Windows filename extension.

var ext = reExtnameWindows.REGEXP.exec( 'C:\\foo\\bar\\index.js' )[ 1 ];
// returns '.js'

Notes

  • When executed against dotfile filenames (e.g., .gitignore), the regular expression does not capture the basename as a filename extension.

    var ext = reExtnameWindows.REGEXP.exec( '.bash_profile' )[ 1 ];
// returns ''

ext = reExtnameWindows.REGEXP.exec( '.travis.yml' )[ 1 ];
// returns '.yml'

Examples

var reExtnameWindows = require( '@stdlib/regexp-extname-windows' );

var RE_EXTNAME_WINDOWS = reExtnameWindows();
var ext;

ext = RE_EXTNAME_WINDOWS.exec( 'index.js' )[ 1 ];
// returns '.js'

ext = RE_EXTNAME_WINDOWS.exec( 'C:\\foo\\bar\\home.html' )[ 1 ];
// returns '.html'

ext = RE_EXTNAME_WINDOWS.exec( 'foo\\file.pdf' )[ 1 ];
// returns '.pdf'

ext = RE_EXTNAME_WINDOWS.exec( 'beep\\boop.' )[ 1 ];
// returns '.'

ext = RE_EXTNAME_WINDOWS.exec( '' )[ 1 ];
// returns ''

ext = RE_EXTNAME_WINDOWS.exec( '\\foo\\bar\\file' )[ 1 ];
// returns ''

ext = RE_EXTNAME_WINDOWS.exec( 'C:\\foo\\bar\\.gitignore' )[ 1 ];
// returns ''

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.