A good general resource for crafting regexes is perlretut and is worth a read through. For your case as described, you could use /^ascii/i. This expression does the following:

1. Starts at the beginning of a phrase ( /^ )
2. Matches the letters 'ascii' in order ( ascii )
3. Runs the matching in a case insensitive fashion ( /i )

   ---

   In reply to Re: regex for a phrase beginning with some chars by kennethk
   in thread regex for a phrase beginning with some chars by smanicka

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