regular expression for a certain string format

I want a regular expression in C# to check if a string is in the following format

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AbebeDemekeAuthor Commented:
by the way the first xx is always the same and there is a dot after zzz
Hi AbebeDemeke,
I'm going to assume that x,y,z,m, and n are alphanumeric, so I'll use a \w to represent that, but you can substitute it with \d for digits or whatever else you want.  Now here is the regex:


\A - beginning of string
\z - end of string

Hope this helps.

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Also, here is a link to a good regex tutorial:

Hope it helps.
I'd also recommend downloading expresso, it's an .NET application that is very useful for testing out regular expressions:

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Regular Expressions

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