Re: How would you write this RegExp?

[Anonymous Monk]

This guy is called a caret. :-)

You will need the following:

• 0+ arithmetic to make the result a 0/1 boolean
• Anchors ^$ at the regex pattern, to force a full match
• A character class [] in the regex for your accepted set
• A repetition * (or +) after the character class

Did you read the documentation?

[harangzsolt33]

Well, I have read the documentation, but it's so long, by the time I get to the end, I forget everything else. lol I downloaded an Android app called RegEx GUI, which asks a bunch of questions and is supposed to help you build a regex, but it didn't help me.. :-(

I think, the most complicated part of learning the Perl language is understanding how to write and interpret regular expressions. I still don't understand how to do it. It's a big mess. and everytime somebody writes a long !$,\\.m./*(/&/\/%(\/_\/*!/@Y\/%/\@\\\\$H&*(P!//(/@*&/P/@/#!/$/^/-//-^xqfa34s*(67)_w/0//P@\/UI\.\.\ I am like oh, wow!!! what is that!? :-O Haha :D

[MidLifeXis]

And don't forget Damian Conway's Regexp::Debugger. It does a very good job of showing, in full, glorious, mind-numbing detail, every step of the regexp processing sequence.

[Anonymous Monk]

Luckily :)

other regex tools, ppixregexplain.pl

Also perlrequick and Regexp::English