Skip to main content

A Plethora of Updates to the Site and the Tool

First and foremost, you'll notice that I've moved the tool itself to I've contemplated this move for awhile. On one hand, it was convenient that the home page contained the tool itself. On the other hand, it was a little slow to load for a home page, and a little off-putting for new visitors coming to the site who don't have Silverlight installed. The new home page is much smaller and faster to load to alleviate some of that first-load anxiety.

The other difference is that I now have a reference page. This should be handy to pull up in a separate browser while you're using Regex Hero and need a quick regex reference. It's pretty short & sweet right now, but I will be working to improve and expand this page to become a more complete reference.

As for the tool itself, I made some more improvements. I've made the auto-saving feature a little more aggressive. I was noticing cases where it wouldn't save. So when you close the tool and bring it back up again you lose what you were working on. I think I resolved that.

And then I've added a couple buttons to the top-right corner of the tool. You'll notice the "Generate Code" and "Full Screen" buttons. The Full Screen button is obvious -- it'll toggle full-screen mode. The Generate Code button is a more useful feature for those writing .NET applications. It'll actually generate a .NET snippet of code based on your regular expression, target string, options, and settings. Then you can copy & paste that code into your own application.


Popular posts from this blog

Regex Hero for Windows 10 is Underway

Awhile back I began working on an HTML5 / JavaScript version of Regex Hero . However, it was a huge undertaking essentially requiring a complete rewrite of the entire application. I have not had enough time to dedicate to this lately. So I've begun again, this time rewriting Regex Hero to work in WPF. It'll be usable in Windows 10 and downloadable from the Microsoft Store. This is a much easier task that also has the advantage of running the .NET regex library from the application itself. This will allow for the same speedy experience of testing your regular expressions and getting instant feedback that Regex Hero users have always enjoyed. I expect the first release to be ready in Q4 of 2019.

Optimizing Your Regular Expressions

Regular expressions will backtrack.  That's an unfortunate thing about them because backtracking can be slow.    And in certain (rare) cases the performance can become so awful that executing the regular expression against a relatively short string could take over a minute.  There's a good article about catastrophic backtracking over at . And today I created a video about all of this called  Regex Lesson 5: Optimization .  In the video I start with a very poorly written regular expression and make several improvements to it, using the benchmarking feature along the way.  By the end of the video I make the regular expression over 3 million times faster. In addition, today's update to Regex Hero provides a little message in the event that you encounter a regular expression that takes over 10 seconds to evaluate... And then last of all, I changed the benchmarking feature a bit.  In the past it would simply test your regular expression against

Silverlight 4 Coming in April, or Maybe Sooner

The exact release date has not been announced. But Visual Studio 2010 RTM is coming out in April and I think it's safe to assume that Silverlight 4 will be released no later than that. Each release of Silverlight has brought massive improvements over the previous version. And once again, Silverlight 4 does not disappoint. There is a long list of improvements but the ones that I think that will affect Regex Hero are as follows: RichTextBox My plan is to use this in place of all 4 major textboxes in Regex Hero. The new RichTextBox has built-in multiple undos & redos, so I can ditch my home-brewed code. It should be nice to use for syntax highlighting for the regular expressions I intend to create. It also has a built-in API to determine the pixel position of the text. I should be able to use this API and build a new highlighting scheme based off of it. This should do a couple things. First, I should be able to finally fix the problem I had with the ScrollViewer and