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Regular Expressions in C#

Posted on 2013-11-12
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Last Modified: 2013-11-12
I have the following string:

DMG*D8*19481101*M~NM1*PR*2*EDS/MEDICAID*****PI*DNC00~

I need to find certain matches of that string.  Here is what I have tried:

string sPattern = @"DMG\*D8%~NM1\*PR\*2\*%PI\*DNC00~";

The issue is that, for example, the 19481101 could be a different number.  I don't care about that, nor do I care about the EDS/MEDICAID.  Those parts can change and it's fine.  In my pattern above, the parts I don't care about are denoted by a % (I realize its not legal in C# I'm just using it for illustrative purposes).  What I'm attempting to do is match up the parts I have that are literal and tell Regex that the parts denoted by % can by anything, I don't care, just ignore them.  By the way, this is all inside a text file (I'm looking for one part out of possible thousands of characters).  

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JamesNT
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Derek Jensen earned 2000 total points
ID: 39642386
Dealing with the string

DMG\*D8%~NM1\*PR\*2\*%PI\*DNC00~
where you want the %'s to match anything, you simply replace % with .*?

string sPattern = @"DMG\*D8.*?~NM1\*PR\*2\*.*?PI\*DNC00~";

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by:JamesNT
ID: 39642674
So that's all there was to it!  Once I went back and read the MSDN docs, it made perfect sense.  I guess I just needed to see it one time.

JamesNT
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