Announcements

Regex Expert Job at CISCO in San Jose, California

Brent Rogers — Tue, 22 Feb 2011 16:34:12 GMT

Our Security Technology Business Unit is looking for Senior Software Engineer that is an expert in Regular Expressions, JavaScript and Rewrite Engine. Please let me know if you can recommend anyone.

Thanks in advance,
Brent

Senior Software Engineer (Rewrite Engine, Regular Expression, Parsers, JavaScript)

Location – San Jose, California

Description
Security Technology Business Unit (STBU) within WSRTG, is seeking a Software Engineer. STBU offers network and content security solutions that enable our customers to collaborate with confidence. These solutions include our firewall, intrusion prevention, remote access/VPN, unified client, web and email security.

Responsibilities:
Develop software for the Cisco Adaptive Security Appliance (ASA) and more specifically for the SSL VPN Remote Access component. Program in C, C++ and Javascript on a Linux-based platform with a slew of open source and proprietary libraries and infrastructure. Small team is central owner of WebVPN functionality; engage in all aspects of the product life-cycle from specification, design to development and post release maintenance. Great opportunity to employ a breadth of software engineering skills in a highly visible product.

The successful candidate would have 3+ years of industry experience or more, would have experience working on large projects, analyzing and debugging Layer 7 protocols, writing parsers for high level languages and has written javascript to generate javascript.

This candidate will show talent, passion and pride in software architecture, authorship and quality, excellent collaboration skills, teamwork and cross functional aptitude.

Expertise in most of the following areas is required:

* Flash decompilation
* Unix/POSIX/Linux application level programming
* Very strong Javascript development skills, with ability to use debuggers and profilers
* Ability to diagnose issues with proprietary protocols
* knowledge of parsers, regular expressions
* Strong knowledge of the HTTP protocol and HTML
* NTLM, SSL, character encoding
* Differences between browsers, proxies
* Experience with tools and frameworks like wireshark, Pcap, HTTPwatch, Spidermonkey, webkit

Brent Rogers CISCO
Recruiter

Email: breroger@cisco.com
Phone: 972-813-4959
Mobile: 469-223-2085
LinkedIn: linkedin.com/in/hotjob
twitter: twitter.com/BrentRecruiter
Facebook: http://www.facebook.com/CiscoJobs
CISCO Job Link: CISCO.com/Jobs

Announcing Graphrex -- a graphical regular expression tool

CrotonResearch — Thu, 22 Jul 2010 21:12:09 GMT

Announcing Graphrex, a tool that analyzes a Java regular expression and creates a diagram with a visual representation of the regex's structure and flow. Graphrex is a free plugin for the Eclipse IDE. Graphrex promotes the understanding, documentation and debugging of regular expressions.

Graphrex includes (1) a new resource type that Eclipse uses to store the diagram so that it can be saved and re-opened; (2) an editing area where the regular expression can be entered as text, with instant feedback on syntax errors; (3) the diagram, which has interactive features to allow you to select and zoom, or inspect the contents of character sets; (4) enhancements to the Eclipse UI to help you to manipulate your Graphrex diagram; and (5) a structured view that of the regular expression that is linked to the diagram, so that selecting something in the diagram selects it in the view, and vice versa.

Graphrex is a free plugin for Eclipse. Please take a look at the website , download Graphrex and let us know what you think.

Java lacks syntax

CodesAway — Sat, 26 Sep 2009 07:14:07 GMT

Simply put, Java regular expression syntax is no where close to other languages. Like many other Java programmers, this lack of functionality is painfully obvious when I try to use a regular expression written in Perl/PCRE, .NET, or Ruby and try to use it in Java. Constructs such as named capture groups are just now appearing in Java 7, but are severely limited. Also, Java doesn't have support for matching numeric ranges, conditionals, perl's "branch reset" pattern, or many of the other useful syntax.

Well, instead of growing tired of this, I thought I would do something about it.

I developed a Java library that adds much needed syntax support for the constructs mentioned above, and others, enabling usage of regular expressions written in other languages to be used in Java. The library is called RegExPlus, codesaway.info/RegExPlus/, and there is an online tester supporting the same syntax, codesaway.info/JavaStar.

RegExPlus adds support for the familiar syntax found in Perl/PCRE and .NET, but lacking in Java. Additionally, flags were added to Java's flags to allow entering a regular expression that uses Perl's octal syntax, or .NET's numbering for capture groups, along with .NET's explicit capture flag, to allow using regular expressions in Java that you already use in another language.

Sorry about the shameless plug for my library, but I promise, it greatly enhances Java regular expression support, and as an added bonus, it runs on Java 1.5+, and uses Java's native regular expression. RegExPlus is only responsible for refactoring the regex to an equivalent form, usable in Java. All functions in the Pattern / Matcher classes are provided, along with many additional ones, so it's 100% backwards compatible. It utilizes Java's regex engine (providing the optimizations that it has), and you get to use the same syntax and regular expressions you already use in other languages.

Formatting source code to properly paste here

ddrudik — Mon, 01 Dec 2008 17:17:40 GMT

I have setup a simple page to help format source code for pasting in posts here:

http://www.myregextester.com/code.php

Select the language of the source code from the select list and paste your source code into the textarea and click "Submit".

The formatted source code will appear above the select list, copy and paste that source code into a post.

For plain text just choose TEXT.

I have arranged the top of the select list in the order that I commonly provide source code examples here.

Comments/suggestions welcome.

Solving complex parsing tasks with RegexTreeer.

cliver — Wed, 29 Oct 2008 19:46:52 GMT

RegexTreeer is a freeware tool designed to solve complex parsing tasks by means of utilizing regular expressions and simplifying development of data parsers thus making this work much easier. It implements an innovative technology of building and managing trees of regexes. It is suitable for parsing any texts, and particularly web pages since it has a web browser as an integral part of the application.

Its homepage is http://cliversoft.com/products/regextreeer/index.php

The basic features of RegexTreeer

graphic interface for building and debugging collections of superposed regexes called regex trees;
storing regex tree in XML file of the predefined format (regex tree file) so that it can be used by many applications;
exposing Cliver.Parser library that can be used within .NET code in order to perform parsing with regex trees and get parsed data as a tree-like structure;
providing coordination between html source code and its view in a web browser having in mind parsing html pages with regular expressions;

Testing .NET and Perl-style regex patterns

ddrudik — Wed, 05 Nov 2008 01:08:46 GMT

I decided to add .NET support to my PHP (Perl-style) regex tester at http://www.myregextester.com since I wanted to occasionally test variable-length lookbehind assertions for use with .NET and of course PHP does not allow for (while it does allow for fixed-length lookbehind alternations of possibly differing length, which is more than Perl itself actually supports).

The processing of the pattern with a .NET regex engine is an optional choice at the tester as it defaults to using the PHP's Perl syntax regex functions.

how to highlight capture groups (regardless of nesting level) within regex matches (in PHP)

ddrudik — Tue, 21 Oct 2008 23:37:32 GMT

I now have the highlighting of capture groups (regardless of nesting level) functional at myregextester.com, thanks to the PHP code snippet by 'vapoorize' posted here:

http://phpsnips.com/tempSnip.php?id=5

Seems like a simple enough solution once I saw the code, yet didn't seem so simple when I was struggling with attempts to solve it previously. Maybe this post will help someone else attempting the same.

If you are curious about the modified highlighting code that I use at the site, here it is the relevant code:

http://pastebin.com/f9bd03cb

The version I use at the site combines each named capture group with the unnamed capture group that follows it. In PHP when you name a capture group an unnamed capture group with the same contents is also created in the resulting array, regardless if you have any use for that unnamed capture group or not.

Diagramming regular expressions

ddrudik — Sun, 05 Oct 2008 03:25:15 GMT

I recently discovered the GraphViz::Regex Perl module for diagramming regular expressions:

http://search.cpan.org/~lbrocard/GraphViz-2.03/lib/GraphViz/Regex.pm

I have added that functionality to my online regex tester at http://www.myregextester.com/

Simply check the box "DIAGRAM" before submitting your pattern in the tester.

Unlike the saved examples, diagrams are kept on a temporary basis only (currently removed daily). However, if you save an example with the "DIAGRAM" checkbox selected it will recreate the diagram when recalled.

The diagrams are returned in PNG format.

There are likely a number of unforseen issues with the module's interpretation of regex syntax, unfortunately I cannot change it's functionality so it is what it is. One known issue I would note is that it does not take modifiers into account when creating the diagrams.

I have also added "WORD LIST" function to the tester using the Regex::PreSuf Perl module:

http://search.cpan.org/~jhi/Regex-PreSuf-1.17/PreSuf.pm

It allows for the creation of a match pattern based on a list of words, pattern is somewhat optimized but in my testing the results varied (if you encounter optimization issues using this function, consider using the "OPTIMIZE" checkbox instead and enter a match pattern with the words in your word list separated by | character).

The "WORD LIST" tool can be found in the "TOOLS:" dropdown list at the site.

Regex.cc - Online tool for developing and testing regular expressions.

Regex.cc — Fri, 05 Sep 2008 20:29:25 GMT

Hello!

There's a lot of simple online tools for testing regular expressions but I couldn't find one that could satisfy my simple needs. So, I did what most programmers would do in this situation: I created my own by using perl and javascript. I would appreciate your feedback (besides this thread, you can also send it to contact at regex dot cc).

Check out the script at http://www.regex.cc

Cheers!

John

Regex Inference

glider — Tue, 03 Jun 2008 16:02:46 GMT

I'd like to introduce my recently released commercial tool Regent. It tries to infer search and replace regular expression from text example and supports MS Visual Studio and ECMAScript regular expressions syntaxes.

I'm interested in your opinions.

Thanks.

My regex tool

aCa — Mon, 14 Apr 2008 14:16:48 GMT

According to this forum description this is the place to post announcements about regex tools. Hopefully I have understood the topic correct :-)

I have recently released a beta of my regex tool at http://regex.larsolavtorvik.com/. So far it supports PHP PCRE, PHP POSIX, JavaScript, Perl and Python. I plan to add more languages in the future if there is a demand. Feel free to drop by and test it and give me feedback on my blog (http://larsolavtorvik.com/) about bugs, feature requests and other things.

Hopefully it can be usefull for you!

available job with florida job seaker

scottkachman — Tue, 19 Feb 2008 18:34:15 GMT

my boss has had me write up job request he has seen some of the regex work done by the users of this site. and would like to offer jobs to the users of this site. anyone eather willing to work online or in the local area of boca, florida willing to travel to work please email me at scottatgfm@yahoo.com. work will encompass programing and working with a new parseing program made by the company.

myregextester.com

ddrudik — Tue, 01 Jan 2008 01:01:54 GMT

After looking for an online regex tester that suited my needs, I decided to create one myself which is now live at http://www.myregextester.com, you are welcome to check it out if you would like. It is just a quick tester that creates PHP code for the operations, displays result arrays, etc. It also allows the visitor to load source from a web page or upload source text files as well as show the whitespace/non-printable character notation of source text files. It's a ways off from auto-generation of regex patterns, but it's has to start somewhere.

I started enabling the auto-creation of PHP/C#/.NET/Java/JS/ASP code blocks for regex operations, there's more to be done as far as code generation with regards to regex options etc.

If you see an error in something at the site or a useful function missing please let me know, I'm beta testing it live so there's bound to be pieces missing.

MSDN forums now has Regular Expression Forum

OmegaMan — Fri, 19 Jan 2007 23:47:18 GMT

If one posts a question here that concerns the usage of Regular Expression in .Net and it goes unanswered due to the question needing .Net specific knowledge, one should post it to the MSDN Regular Expression forum that has recently been created. Or please recommend the user go there for such advice. The tagline for the forum is

Discuss and ask questions concerning the usage of Regular Expressions (REGEXes) in the .NET Framework.

I am one of the many moderators on the MSDN forums and for those not familiar with the MSDN forums, it not a direct conduit to Microsoft support, but to forums, hosted by Microsoft, where posts go to people that are primarily non-Microsoft volunteers, such as myself. There are MS employees from specific development groups which do answer on a frequent basis when questions go unanswered or the posts need specific technical expertise. There are also MVPs, again non-MS people, who have been designated by Microsoft for providing outstanding support to the technical community in a certain technological area, who have demonstrated expertise in that field who answer as well.

The goal of this post here is not to compete but cooperate. I have used RegexAdvice and recommend it to other users. It provides needed help for regex specific questions for the many different flavors of regex. But it does not necessarily provide MS specific advice, to which I don't blame them. I run Unix website and Perl is one of my favorite languages, so there is a time and place for everything. I plan to add a reciprocal link inside the MSDN Regex forum on one of the top level announcements to RegExAdvice for true regex questions.

One will need to have a passport/Live ID to logon, but if one has development questions, even outside regex, the MSDN forums is an excellent place to post and learn. See the top level list of forums here.

Thanks For your Time.

A good book for RegEx beginners...

ryeagley — Mon, 06 Nov 2006 15:39:42 GMT

If you go to Amazon, it's fairly easy to find the book:

Regular Expressions with .NET
Dan Appleman
1st Edition February 2002
Revised 2003
Published by Daniel Appleman in cooperation with Desaware Inc.
www.desaware.com

It's a great book for beginners!

ryeagley

New App: Eventually Looking for Some Testers, Support

philmaker — Thu, 02 Nov 2006 23:02:03 GMT

I recently posted a preview of a Regex app I'm writing. It is not yet downloadable but could be soon. I'm eventually looking for some testers and maybe a sanity check as well. :-)

http://www.luminera.com/reggie/

I'm primarily a Mac user but I use Windows too. The app with run multi-platform but perhaps initially Mac. So if you're a Mac user who reads this, I'd love to talk to you. The app just needs a few more tweaks for running under Windows - and I need to make it a little more robust before release in general.

Thanks,

Philip Weaver

philip@philmaker.com

Using regexes with Google

mash — Fri, 06 Oct 2006 15:19:46 GMT

Google has set up a new search service for programmers to search for code. http://www.google.com/codesearch

This search allows you to use regular expressions in your search

Right now it's still in Google Labs.

Michael

Site Upgrade - 30 April 2006

ssmith — Sun, 30 Apr 2006 15:37:11 GMT

We've just complete an upgrade to Community Server 2.0. We're still tracking down a few bugs today but if you find any errors with the site please let me know. You can just reply to this thread or contact me at my blog (assuming it's not down with an error...):

http://aspadvice.com/blogs/ssmith/

Thanks - let me know how you like the new feature, and as always if you want a blog about regular expressions please let me know.

Want a Blog?

ssmith — Fri, 24 Mar 2006 05:33:24 GMT

If you'd like to blog about regular expressions, we're accepting new bloggers on RegexAdvice.com. Please PM or Email me if you're interested, and let me know what virtual root (folder name) you would like (for example: regexadvice.com/blogs/FOLDERNAME ).

Steve

Powerful REGex Tester

venimus — Thu, 23 Mar 2006 22:19:25 GMT

Hi,
It has been more than 2 years since I developed the first version of the (yet) most powerful browserbased regular expression tester on the web.
Give it a try and you won't be sorry.

http://www.koralsoft.com/regextester/

The site is inspired by kRegExpeditor and in some way mimic its result display. It is written in AJAX fashion.

The key feature here is that the changes of the test pattern (the test string and the replace text) affects the result instantly. All the matches are colored instantly aswell. It is a great fun to work with it. It has been in great help to many people.

Another feature is that you are able to switch to JavaScript, PCRE and Posix dialects that affects the result instantly. To test simpler expression I recommend using the native JavaScrip, while the other utilize some serverside scripting and may have delays showing the result.

The interface is minimalistic and is designed to fit in the browser's side pannel area (Hotpanel in Opera). However it is still powerful allowing to store your regular expressions for later use (still cookie based).

Hope it is helpful to you too.

WebRegEx

jswap — Mon, 24 Oct 2005 16:51:45 GMT

I've created a free tool that allows users to experiment with regular expressions in parsing web pages. Check it out here:

http://ratemds.com/webregex

Thanks,

John

Site Maintenance This Weekend

ssmith — Mon, 12 Sep 2005 18:43:11 GMT

FYI, we'll be doing some site maintenance this weekend (17-18 September) that may result in some down time.

SpeedDemon Version 2.0 Released - Enhanced Regular Expressions

erichf — Wed, 27 Jul 2005 22:28:41 GMT

SnapDragon Systems, LLC is proud to announce the latest release of their innovative text matching and extraction component.

Optimized for extracting text fragments from free-form documents, SpeedDemon v2.0 includes pattern nesting, massively parallel pattern matching and advanced named captures among several other features.

SpeedDemon addresses the needs of developers who have relied on regular expression tools such as Perl and Python (PCRE) for their text mining solutions, but have found the tools ill-adjusted to their specific needs.

Founded in 2004, SnapDragon is dedicated to building wicked tools that save time.

RegexAdvice is now on CommunityServer 1.0!

ssmith — Fri, 15 Apr 2005 06:00:13 GMT

RegexAdvice now supports forums and has moved to Community Server. Unfortunately, this also means that URLs linking to blogs.regexadvice.com must be updated to point to regexadvice.com/blogs/. If you find problems, please let us know in the Feedback forum.