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Wednesday, August 04, 2004 7:32 PM

Darren's "Killer Reason for LookAround" posting has been haunting me

Darren's Post: http://blogs.regexadvice.com/dneimke/archive/2004/08/03/1432.aspx Every time he comes up with a posting like the above I get an instant message of some sort or another with a quizzical question, “Hehe, you want to be unproductive...
Posted by Justin Rogers | 3 comment(s)
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Tuesday, May 25, 2004 12:50 AM

Bringing an end to the posts on decompositions of numeric ranges into validating regular expressions.

I've posted quite a few items covering the process of decomposition. Most of the examinations are textual only and cover the process of generating decompositions by hand. I've since issued a challenge for the creation of an algorithm that would automatically...
Posted by Justin Rogers | 3 comment(s)
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Saturday, May 22, 2004 7:44 PM

Examination of regex range validation using lower and upper bound values

A programming challenge? Maybe a bit of one. If nothing else it is a neat algorithm and examination of generating capture groups that will handle numbers within ranges. The first posting I did on this I examined the generation of 0 through N ranges and...
Posted by Justin Rogers | with no comments
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Monday, March 29, 2004 2:16 AM

Performance: Different methods for testing string input for numeric values...

So there was a blog entry about the VB .NET IsNumeric function today. The question was in regards to a C# equivalent. I have two things to say really. First, if you really want the IsNumeric function from VB you can always grab it out of Microsoft.VisualBasic...
Posted by Justin Rogers | 14 comment(s)
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Saturday, March 20, 2004 9:36 PM

Want faster regular expressions? Maybe you should think about that IgnoreCase option...

Let me start with a disclaimer. RegexOptions.IgnoreCase is a very powerful option that allows you to match ignore character casing during matches irregardless of the currently running culture. In other words, this will allow you to take into account other...
Posted by Justin Rogers | 4 comment(s)
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