Perl Guru Forums: Perl Programming Help: Regular Expressions: could you explain the meaning of the regex

CGI/Perl Guide | Learning Center | Forums | Advertise | Login

Site Search: in


	MAIN INDEX	SEARCH POSTS	WHO'S ONLINE	LOG IN

Home: Perl Programming Help: Regular Expressions:
could you explain the meaning of the regex

per'l'over
Novice

Aug 27, 2008, 3:10 AM

Post #1 of 3 (1399 views)

could you explain the meaning of the regex	Can't Post

could you explain the meaning of the regex

if($ARGV[0] =~ /^([\-+])/)

(This post was edited by ravindra on Aug 27, 2008, 3:36 AM)

KevinR
Veteran

Aug 27, 2008, 10:16 AM

Post #2 of 3 (1389 views)

Re: [per'l'over] could you explain the meaning of the regex [In reply to]	Can't Post

it means that if the value of the variable $ARGV[0] begins with a - (dash) or a + (plus) the match is true, for example:

$ARGV[0] = '-foo'; #<-- matches true
$ARGV[0] = '+foo'; #<-- matches true
$ARGV[0] = 'foo';#<-- matches false
-------------------------------------------------

per'l'over
Novice

Aug 27, 2008, 9:10 PM

Post #3 of 3 (1373 views)

Thanks Kevin [In reply to]	Can't Post

Search for (options)

Web Applications & Managed Hosting Powered by Gossamer Threads
Visit our Mailing List Archives