regular expressions: Difference between revisions

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Articles: an example
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* [[Perl regex]]
* [[Perl regex]]
* [[regex manpage]]
* [[regex manpage]]
==Examples==
* \[http://[a-z|.|\-]+\.[a-z|.|\-]+[a-z|.|\-/]* [a-z|A-Z| ]+\]
** matches a link in [[MediaWiki]] markup (it could probably be more precise, but catches most of them)

Revision as of 01:22, 30 September 2007

computing: software: programming: regex

Overview

Regex is shorthand for "Regular Expressions", a syntax used in string matching and replacement. It is especially heavily used in Perl, and the Linux utility grep is basically a front end for regex geared towards file-searching.

Articles

Examples

  • \[http://[a-z|.|\-]+\.[a-z|.|\-]+[a-z|.|\-/]* [a-z|A-Z| ]+\]
    • matches a link in MediaWiki markup (it could probably be more precise, but catches most of them)