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regExp Help

Posted: Mon Apr 18, 2011 8:14 am
by gd77
Hello:

I m failing to match word OR word1_word2 on boundry...
\b[a-z]|[a-z]+[_a-z]]\b
b[a-z]|[(a-z)+(_a-z)]{1,}\b <--- valid with _word

thanks.