Regular Expression question

Posted by Mohammad Kotb on Stack Overflow See other posts from Stack Overflow or by Mohammad Kotb
Published on 2010-04-26T22:55:44Z Indexed on 2010/04/26 23:13 UTC
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homework

Hi,

In my academic assignment, I want make a regular expression to match a word with the following specifications: word length greater than or equal 1 and less than or equal 8 contains letters, digits, and underscore first digit is a letter only word is not A,X,S,T or PC,SW

I tried for this regex but can't continue (My big problem is to make the word not equal to PC and SW) ([a-zA-Z&&[^AXST]])|([a-zA-Z][\w]{0,7})

But in the previous regex I didn't handle the that it is not PC and SW

Thanks,

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