jquery_regex's Introduction

JqueryRegex

Rails gem based on James Padolsey's jquery-regex selector

http://james.padolsey.com/javascript/regex-selector-for-jquery/

Installation

Add this line to your application's Gemfile:

gem 'jquery_regex'

And then execute:

$ bundle

Include assets:

// In application.js
//= require jquery_regex

Usage

It’s pretty simple to use, you need to pass an attribute and a regular expression to match against. The regular expression must be in non-literal notation; so replace all backslashes with two backslashes (e.g. ^\w+$ -> ^\w+$).

// Select all elements with an ID starting a vowel:
$(':regex(id,^[aeiou])');

// Select all DIVs with classes that contain numbers:
$('div:regex(class,[0-9])');

// Select all SCRIPT tags with a SRC containing jQuery:
$('script:regex(src,jQuery)');

// Yes, I know the last example could be achieved with 
// CSS3 attribute selectors; it's just an example...

Note: All searches are case insensitive; you can change this by removing the ‘i’ flag in the plugin. This plugin also allows you to query CSS styles with regular expressions, for example:

// Select all elements with a width between 100 and 300:
$(':regex(css:width, ^[1-3]\\d{2}px$)');
 
// Select all NON block-level DIVs:
$('div:not(:regex(css:display, ^block$))');
Additionally it allows you to query data strings added to elements via jQuery’s ‘data’ method:
// Add data property to all images (just an example);
$('img').each(function(){
    $(this).data('extension', $(this)[0].src.match(/\.(.{1,4})$/)[1]);
});
 
// Select all images with PNG or JPG extensions:
$('img:regex(data:extension, png|jpg)');

original work => James Padolsey