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

Ibuildings techPortal: Optimising MHVC Web Applications for Performance

PHP-Tip-a-Day: PHP Tutorial: The Allegory of The Factory Pattern

PHPFreaks.com: PCRE Regex Spotlight: \K

Nils Adermann: Composer: Replace, Conflict & Forks Explained

DevShed: Expanding an Error Logger with the Chain of Responsibility Pattern


Community Events





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


version series composer artisanfiles symfony podcast library interview tool introduction security list community release language opinion conference voicesoftheelephpant framework laravel

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