in reply to How to express contents of a file as regex metachars?
if ($data =~ /^([\d\w]+)/ ) { notate('A', length($1)); }
Your use of [\d\w] is redundant because the \w character class also includes the same characters of the \d character class. Also, the \w character class includes the _ character (underscore) which is not an alphanumeric character. You should just use [A-Za-z0-9] which only matches alphanumeric characters.
You don't have to capture the match and get its length, you can just pass its length directly:
if ($data =~ /^[A-Za-z0-9]+/ ) { notate('A', $+[0]); }
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Re^2: How to express contents of a file as regex metachars?
by dwhite20899 (Friar) on Jun 16, 2012 at 19:49 UTC |
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