News Feed
Sections




News Archive
Looking for more information on how to do PHP the right way? Check out PHP: The Right Way

SitePoint PHP Blog:
Tokenization using regular expression sub patterns
January 18, 2008 @ 11:15:49

On the SitePoint PHP blog there's a new post from Harry Fuecks talking about a replacement method using token that works a bit better than the typical regular expression method.

Promtped by a real world example, one often-overlooked feature of most regular expressions engines is how subpatterns can useful to whip up tokenizers relatively easily. The problem? I needed to match the word any of the words "Canton", "Region" or "Group" in a string and perform a follow up action depending on which matched.

His ultimate solution used a set of preg_match generated tokens to do the replaces a bit more reliably. It also makes it easy for other scripts (like his Python example) to use them too.

0 comments voice your opinion now!
regularexpression pattern token replace


blog comments powered by Disqus

Similar Posts

Lorna Mitchell's Blog: Authenticating with OAuth from PHP

Andrey Hristov's Blog: Replacing mysqli's Connection, Result and Statement classes

DevShed: Introducing Visitor Objects in PHP 5

Guilherme Blanco's Blog: register_superglobal("¯name"¯);

SitePoint PHP Blog: Tokenization using regular expression sub patterns


Community Events





Don't see your event here?
Let us know!


zendserver interview laravel language deployment api release tips list opinion series install symfony package community update framework podcast introduction library

All content copyright, 2014 PHPDeveloper.org :: info@phpdeveloper.org - Powered by the Solar PHP Framework