Description

The purpose of the Regex Assistant is to help you to write regular expressions. With it you can edit a regex and visualize its behavior.

The Regex Assistant offers the possibility to visualise a regular expression by using the Léon Brocard's GraphViz::Regex.pm module. The graph is rendered with the WinGraphviz COM object which can be downloaded from The GraphViz home page

Consider the present version as a prototype. If you have any remark or you want to contribute to the development don't hesitate to send me a mail.

Installation

We need to have IE5, ActiveState Perl and Perlscript installed on your machine.

Unzip the RegexAssistant.zip in a directory of your choice
Launch by double-clicking on the file regex_assistant.hta.
Now play with it!

Quick start

With the step by step execution try the following regex:
```
.*.+.+.+
```
Check the Step by step mode.
And, for example click on the "Continue" button.

Other interesting regexes to test could be:

regex	string
`\b`	abcd
`(?=\W)`	abc#def

Todo

So many things to do... but you can participate.

Major Bugs

highlighting of a regex isn't always possible due to a PerlScript bug.
call to an undefined sub in an inserted Perl expression can produced a fatal error. Don't write something like (?{ l $n })

Philippe Verdret pverdret@caramail.com

Last modified: Thu Feb 06 14:08:24 Paris, Madrid 2003