Some time ago, the company demanded that the program was written in the database language, and use some classes to be patchwork, using extremely inconvenient, so I wrote a class parsing T-SQL, using regular expressions. I have found some information about learning regular expressions.
The .NET programmers must be taken by one of the .NET programmers. You can query expressions through the WebService.
http://www.regexplib.com/displaypatterns.aspx
Regular Expression Tutorial Learn the website of the regular expression, the content is more complete.
http://www.regular-expressions.info/tutorial.html
Use regular expressions in XSLT 2.0. Still watching the NSLT2.0 of W3C,
http://www.w3.org/tr/xslt20/