@stdlib/regexp-dirname

Return a regular expression to capture a path dirname.


Keywords
stdlib, regex, regexp, re, regular, expression, path, capture, match, dir, dirname, file, filename, posix, windows, win32, javascript, node, node-js, nodejs
License
Apache-2.0
Install
npm install @stdlib/regexp-dirname@0.0.7

Documentation

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reDirname

NPM version Build Status Coverage Status

Regular expression to capture a path dirname.

Installation

npm install @stdlib/regexp-dirname

Alternatively,

  • To load the package in a website via a script tag without installation and bundlers, use the ES Module available on the esm branch (see README).
  • If you are using Deno, visit the deno branch (see README for usage intructions).
  • For use in Observable, or in browser/node environments, use the Universal Module Definition (UMD) build available on the umd branch (see README).

The branches.md file summarizes the available branches and displays a diagram illustrating their relationships.

To view installation and usage instructions specific to each branch build, be sure to explicitly navigate to the respective README files on each branch, as linked to above.

Usage

var reDirname = require( '@stdlib/regexp-dirname' );

reDirname( [platform] )

Returns a regular expression to capture a path dirname.

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

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

var dir = RE.exec( '/foo/bar/index.js' )[ 1 ];
// returns '/foo/bar'

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

dir = RE.exec( 'C:\\foo\\bar\\index.js' )[ 1 ];
// returns 'C:\foo\bar'

reBasename.REGEXP

Regular expression to capture a path dirname.

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

reDirname.REGEXP_POSIX

Regular expression to capture a POSIX path dirname.

var dir = reDirname.REGEXP_POSIX.exec( '/foo/bar/index.js' )[ 1 ];
// returns '/foo/bar'

reDirname.REGEXP_WIN32

Regular expression to capture a Windows path dirname.

var dir = reDirname.REGEXP_WIN32.exec( 'C:\\foo\\bar\\index.js' )[ 1 ];
// returns 'C:\foo\bar'

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 reDirname = require( '@stdlib/regexp-dirname' );
var RE_DIRNAME = reDirname();
var dir;

// Assuming a POSIX platform...
dir = RE_DIRNAME.exec( '/foo/bar/index.js' )[ 1 ];
// returns '/foo/bar'

dir = reDirname.REGEXP_POSIX.exec( '/foo/bar/home.html' )[ 1 ];
// returns '/foo/bar'

dir = reDirname.REGEXP_WIN32.exec( 'C:\\foo\\bar\\home.html' )[ 1 ];
// returns 'C:\foo\bar'

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 © 2016-2024. The Stdlib Authors.