is-posix-bracket

What is is-posix-bracket?

The is-posix-bracket npm package is designed to check if a string includes a POSIX bracket expression. POSIX bracket expressions are a special kind of syntax used in regular expressions to define a range or class of characters to match. This package provides a simple utility function to detect these expressions in strings, which can be particularly useful when parsing or processing regular expressions or strings in applications that need to handle text patterns.

What are is-posix-bracket's main functionalities?

Detection of POSIX bracket expressions

This feature allows developers to check if a string contains a POSIX bracket expression. The function returns true if the string is a POSIX bracket expression, otherwise false. This is useful for validating or parsing regular expressions in text processing applications.

const isPosixBracket = require('is-posix-bracket');
console.log(isPosixBracket('[[:alpha:]]')); // true
console.log(isPosixBracket('[a-z]')); // false

Other packages similar to is-posix-bracket

micromatch

Micromatch is a powerful globbing library that can match strings using the extended globbing syntax used by bash. It supports POSIX brackets and offers more comprehensive pattern matching capabilities compared to is-posix-bracket. Micromatch provides a broader set of features for matching complex patterns, making it suitable for applications requiring detailed control over string matching.

matcher

Matcher is a simple package that allows matching strings against a list of patterns. It supports basic wildcards but does not have built-in support for POSIX bracket expressions. Compared to is-posix-bracket, Matcher is more general-purpose and less specialized, suitable for simpler matching tasks where POSIX bracket detection is not required.

README

is-posix-bracket

Returns true if the given string is a POSIX bracket expression (POSIX character class).

Install

Install with npm:

$ npm install is-posix-bracket --save

Usage

var isPosixBracket = require('is-posix-bracket');

isPosixBracket('[foo:]]');
//=> false
isPosixBracket('[xdigit:]]');
//=> false
isPosixBracket('[[:xdigit:]]');
//=> true
isPosixBracket('[[:xdigit:]]');
//=> true
isPosixBracket('[[:alpha:]123]');
//=> true
isPosixBracket('[[:alpha:]123]');
//=> true
isPosixBracket('[a-c[:digit:]x-z]');
//=> true
isPosixBracket('[:al:]');
//=> true
isPosixBracket('[abc[:punct:][0-9]');
//=> true

Related projects

You might also be interested in these projects:

• braces: Fastest brace expansion for node.js, with the most complete support for the Bash 4.3 braces… more | homepage
• expand-brackets: Expand POSIX bracket expressions (character classes) in glob patterns. | homepage
• is-extglob: Returns true if a string has an extglob. | homepage
• is-glob: Returns true if the given string looks like a glob pattern or an extglob pattern.… more | homepage
• micromatch: Glob matching for javascript/node.js. A drop-in replacement and faster alternative to minimatch and multimatch. Just… more | homepage

Contributing

Pull requests and stars are always welcome. For bugs and feature requests, please create an issue.

Building docs

Generate readme and API documentation with verb:

$ npm install verb && npm run docs

Or, if verb is installed globally:

$ verb

Running tests

Install dev dependencies:

$ npm install -d && npm test

Author

Jon Schlinkert

• github/jonschlinkert
• twitter/jonschlinkert

License

Copyright © 2016, Jon Schlinkert. Released under the MIT license.

This file was generated by verb, v, on April 05, 2016.