Regular Expression for a string

James Stroud jstroud at mbi.ucla.edu
Thu Nov 2 05:11:55 CET 2006


Teja wrote:
> HI all,
> 
> I need to write a regular experssion for a string which satisfies the
> following a criteria :
> 
> 1) it should start with an alphabet
> 2) it can contain alphabets/digits/_ from second character
> 3) it can contain "[a-z]" or "[0-9]" at the end. but this is optional
> 
>  can any one please help me out.... pls....
> 
> 
> Teja.P
> 

This is as general as could be constructed given your vague requirements:

"[a-zA-Z][a-zA-Z0-9_]+"

You may need to provide examples.

James



-- 
James Stroud
UCLA-DOE Institute for Genomics and Proteomics
Box 951570
Los Angeles, CA 90095

http://www.jamesstroud.com/



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