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regex


Match elements via REGEXP

Submitted by mitya33 on June 21, 2010 - 11:14am

This plugin and core extension allows you to match elements via REGEXP, both via a pseudo-selector and via a method, i.e.

See http://www.mitya.co.uk/scripts/Match-elements-via-REGEXP-jQuery-119 for download, demo and full details.

$('p:regexp(/\\d+/)');

or

$('p').regexp(/\d_/)

Note that, if you use the pseudo technique, you'll need to double escape any characters that need escaping.

jQuery fasterTrim

Submitted by travis.hardiman on February 22, 2010 - 4:40pm

A faster version of jQuery.trim() (in versions of jQuery previous to 1.4.3) for those who need to trim a lot of strings, completely overkill for most people. It will use the native String.trim (if available) and will account for NBSPs not getting matched with \s in the regex for Internet Explorer and older versions of Safari. It also provides a function for trimming Unicode whitespace characters that might not be matched by \s or a native trim.


// this now uses the faster trim function
$.trim( " string " );
$.trimLeft( " string " ); // === "string "
$.trimRight( " string " ); // === " string"

// this uses the Levithan trim function, better for larger strings
$.levithanTrim( " string " );

// trim all whitespace including unicode characters
$.unicodeTrim( " \u3000 unicode string \u3000 " );

// OR:

// returns jQuery object with HTML trimmed
$( element ).trimHtml();

// returns jQuery object with text trimmed

Fvalidate

Submitted by culpritz on December 29, 2009 - 4:10pm

A web2.0 html form validation plugin.
Features:

  • - Set validation rules for any form field using inline rules (html attributes).
  • - Ability to use custom regex rules.
  • - Compare two fields for same value (e.g. email or password confirmation).
  • - Use API to take the power in your hands.
  • - Input class changes on error (Better UI).
  • - Disable alerts if you want.

highlightRegex

Submitted by jbr on June 11, 2009 - 5:14pm

Want to highlight some text on a page in jQuery, maybe based on some dynamic input? Check out the highlight v3 by Johann Burkard. Need to be able to do the same thing but with a regular expression? You’re at the right place.

Demonstration

Check out a simple demo here.

Source

Download, fork, comment, etc on github.

Usage

At this point, it’s very simple:

$('#any.jquery.selector').highlightRegex(/[aeiou]/ig);

This would wrap all all vowels inside of #any.jquery.selector with a <span class='highlight'>.

To clear the highlighting, just call $('#any.jquery.selector').highlightRegex(); (with no argument).

jVal - attractive form field validation plugin with keypress validation

Submitted by num on July 31, 2008 - 10:56pm

Super-sexy animated form field validation plugin.

Very easy to apply field validation on a per field basis in the html <INPUT> declaration. Very user friendly in showing each field that has not passed validation. Easy support for restriction of characters in a field, i.e. phone number only allowing digits. Allows for associating the ENTER key with a specific function.