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Regular Expressions

I've been playing around with Flex 2 for some time at work. One of the neat things that Actionscript 3 adds is native regular expressions. As part of an ongoing effort to share knowledge I volunteered to give an informal talk about regular expressions. To help with the talk I created this visual regular expression viewer. It helps show you what matched along with any groupings and other standard stuff. Additionally it can also perform a regular expression replace operation or a simple split operation.

You will need the Flash 9 in order to run the application.

Launch RegExp Tester!

If you find any bugs, have comments, etc. please leave me a comment.

Tags: actionscript as3 programming regexp regularexpression

Posted by Daniel Rinehart on June 12, 2006 11:55 PM |

Comments

Hi, I can't launch your regexp tester with flash9: ReferenceError: Error #1069: Property hasDefinition not found on flash.system.ApplicationDomain and there is no default value. at mx.managers::SystemManager/getDefinitionByName() at mx.managers::SystemManager/http://www.adobe.com/2006/flex/mx/internal::addingChild() at mx.managers::SystemManager/http://www.adobe.com/2006/flex/mx/internal::rawChildren_addChildAt() at mx.managers::SystemChildrenList/addChild() at mx.managers::SystemManager/http://www.adobe.com/2006/flex/mx/internal::initialize() at mx.managers::SystemManager/::initHandler()

Posted by: milan | June 13, 2006 11:33 AM

Getting an error... ReferenceError: Error #1069: Property hasDefinition not found on flash.system.ApplicationDomain and there is no default value.

Posted by: Will | June 13, 2006 1:39 PM

Looks like the Flash player changed a little in some of the latest betas. I've recompiled the SWFs with an older version that seems to work. Let me know if it still has problems.

Posted by: DanielR [TypeKey Profile Page] | June 13, 2006 2:10 PM

cool app, but there's no form labels to identify what each field does. Can you give a brief explanation of the tester and what each field means. Which field is the test string and which is the expression tested? I've got a list of items In an array, curently delim by a | pipe so I can do an OR re - however I now realize I need to do an OR and have a distinct match. men|women|daily|wheelchair ... Any suggestions here? // filters designations private function desFilterFunc(item:Object):Boolean { var testStr:String = item.designations; var cond:Boolean; // args is global list delim by "|" (or) set by calling function var pattern1:RegExp = new RegExp(args,'gi'); //global, ignore case cond = pattern1.test(testStr); // returns: true return cond; } I need to match men not men or women

Posted by: Dan Zeitman | September 7, 2006 11:46 AM