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Centaur · 07-29-2002, 02:51 PM

Get the manual and read the perlre part. Understanding regular expressions is essential for text analysis.

Code:

&hellip; || $FORM{'data8'} !~ /^[0-9A-Za-z]*$/ || &hellip;

This subexpression evaluates to true if $FORM{'data8'} does not match (!~) the regular expression /^[0-9A-Za-z]*$/, which means:

07-29-2002, 02:51 PM	PM User \| #5
Centaur New to the CF scene Join Date: Jul 2002 Location: Novosibirsk, Russia Posts: 6 Thanks: 0 Thanked 0 Times in 0 Posts	Get the manual and read the perlre part. Understanding regular expressions is essential for text analysis. Code: … \|\| $FORM{'data8'} !~ /^[0-9A-Za-z]$/ \|\| … This subexpression evaluates to true if $FORM{'data8'} does not* match (!~) the regular expression /^[0-9A-Za-z]$/, which means: ^ — start of text, [0-9A-Za-z] — digit or letter, — repeated 0 or more times, $ — end of text.