Re^3: regex testing for multiple values

Replies are listed 'Best First'.
Re^4: regex testing for multiple values by nefigah (Monk) on Mar 10, 2008 at 19:18 UTC
Update: Oh, did you want there to be a literal curly brace before IND but not the rest? If so, ignore the rest of this post. Yeah, you have a mismatched bracket there :) Try: `if ($Session->{'usrSystem'} =~ /IND\|NOR\|PRO\|ARM\|SND/s)` Note that you'll want to surround the alternations in parentheses (these kind) if you want something like: `/^(IND\|NOR\|PRO\|ARM\|SND)/` I'm a peripheral visionary... I can see into the future, but just way off to the side.	[reply] [d/l] [select]
Re^4: regex testing for multiple values by Errto (Vicar) on Mar 10, 2008 at 21:49 UTC
Right idea, wrong bolding. It's misleading on the OP's part,but that quoted statement is not a syntax error. The trailing slash closes the regex and the right paren properly terminates the if clause. The right paren is not matching the left brace - that left brace is part of the regex and is treated as a literal.	[reply]
Re^4: regex testing for multiple values by ww (Archbishop) on Mar 10, 2008 at 18:55 UTC
"Mismatched" is so hard to understand? Did you try taking it out? `{...}` surrounds quantifiers in regexen, like: `=~/[A-Z](1,3}/ # Match any char in the range A-Z no fewer than once, # nor more than 3 times` [download]	[reply] [d/l] [select]
Re^5: regex testing for multiple values by Not_a_Number (Prior) on Mar 10, 2008 at 19:19 UTC
Did you try it out? Did you? :) `$_ = '{IND'; print "Ok\n" if /{IND/; ____ Ok` [download] Update: It seems that I misquoted ww, who actually wrote 'Did you try taking it out?'. My point remains valid, though. The problem is not with the regex, it is somewhere else in the code.	[reply] [d/l]
Re^6: regex testing for multiple values by ww (Archbishop) on Mar 10, 2008 at 20:32 UTC
With chagrin, I must admit that I was thinking syntax, and testing proves me wrong on that account. However, grashoper is not looking for `'{IND'` but, rather, for "3 letter account codes...." If I understand that correctly, the condition in the regex in Re^2: regex testing for multiple values `if ($Session->{'usrSystem'}=~/{IND\|NOR\|PRO\|ARM\|SND/s)` introduces an open_curly_brace (`{`), which is wrong, in part, because the regex then tries first to match on for an open_curly_brace.	[reply] [d/l]