On Nov 13, 2007 10:58 AM, Chas. Owens <[EMAIL PROTECTED]> wrote:
snip
> I believe you want /\d[a-z]{2}/i.
snip
Oops, I didn't pay attention to my own warning about \d, I should have said
/[0-9][a-z]{2}/i
The whole regex should be
$data =~ /^[a-z]{2,4} [0-9][a-z]{2}$/i;
Other things to be aware of
+ your rule said space, but you used \s (which matches all whitespace
characters like linefeed and tab)
+ you used the g option and a start-of-line character, you can't match
the start-of-line more than once*, so the g option is pointless
+ you used the start-of-line character indicating that you were trying
to make sure the string contains only the pattern you were looking
for, but you did not include the end-of-line character which means
that anything could exist after the match (this may have been on
purpose, but it doesn't look that way)
+ it looks like you were trying to use capturing parenthesis, these
slow down the regex engine and should not be used when you are just
verifying that a string holds the expected value
+ it is not a good idea to use alternate regex delimiting characters
(such as !) unless your regex contains /, you have to type more and it
confuses people who are looking to see why you did it.
* unless you use the m option, in which case that usage of the g
option would be fine
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