Perl Monk, Perl Meditation | |
PerlMonks |
Redundant regex ([0-9]{2} | [0-9] {2, 4})?by Popcorn Dave (Abbot) |
on Feb 26, 2009 at 22:35 UTC ( [id://746692]=perlquestion: print w/replies, xml ) | Need Help?? |
Popcorn Dave has asked for the wisdom of the Perl Monks concerning the following question:
Fellow monks,
I was surfing around Yahoo Answers the other day and a person was asking for an explanation of what the following regex did:
Of course I pointed him towards YAPE::Regex and presented him with the explanation output, but what struck me as odd was the
Unless I'm mistaken, you're matching 2 numbers or between 2 and 4 numbers. Why would use the | there? If you're matching between 2 and 4 numbers you're matching 2 already aren't you? Am I just missing something here?
To disagree, one doesn't have to be disagreeable - Barry Goldwater
Back to
Seekers of Perl Wisdom
|
|