CGI/Perl Guide | Learning Center | Forums | Advertise | Login Site Search: in Perl Guide PerlGuru Forums Learning Ctr

	MAIN INDEX	SEARCH POSTS	WHO'S ONLINE	LOG IN

Home: Perl Programming Help: Regular Expressions: Matching On Metacharacters

Eric New User Jun 24, 2002, 6:40 PM Post #1 of 6 (11757 views) Matching On Metacharacters Can't Post  I need some assistance in matching on Metacharacters to reject any e-mails which may contain these WITHIN the boundaries marked with an X below (am already filtering at the X parts with other expressions and this is working fine). Except for a "." (period). XsomenameX@Xsome.domainX.TLD I'd also like to match any commas, dollar signs or forward slashes, etc., but not sure if I need to 'escape' all of the characters or just the metacharacters within a [] format like: [~!@#%=;:'"<>,\+\?\*\^\$\[\]\{\}\|\\] and in two separate matches: 1. Between the 1st character (X) and the last character (X)of whatever preceeds the "@". Like: $email !~ m/XmetamatchhereonlyX@/ 2. Between the 1st character (X) and the last character (X)of whatever follows the "@" and preceeds any final "." just before the TLD extension. And: $email !~ m/\@XmetamatchhereonlyX\.[A-Za-z]{2,4}$/> WHEW!!! Thanks for any help. Eric

Eric New User Jun 24, 2002, 6:47 PM Post #2 of 6 (11754 views) Re: [Eric] Matching On Metacharacters [In reply to] Can't Post I forgot to mention that I can NOT do that match using a word boundary, because observations have been some addresses are entered like: so meje rk@bo gus.tld I'm already bouncing back those with white spaces in an earlier match :-) The trick is trying to figure out how to perform the match starting with the 2nd character through the next to last character BEFORE the @ in the first case, and then a separate match starting with the 2nd character after the @ through the next to last character BEFORE the (or any) Final "." just before the ending TLD (which is why I used a $ anchor in the 2nd expample posted). Eric

Jasmine Administrator Jun 26, 2002, 10:53 AM Post #3 of 6 (11747 views) Re: [Eric] Matching On Metacharacters [In reply to] Can't Post If you're just looking for email validity, check out the [url=http://search.cpan.org/search?dist=Email-Valid]Email::Valid module.

Eric New User Jun 28, 2002, 12:25 AM Post #4 of 6 (11742 views) Re: [Jasmine] Matching On Metacharacters [In reply to] Can't Post Tnx for the tip, Jasmine...I'll go take a look. The Metacharacter match Regexp would finalize the rest of what is working pretty well if you can shed any light, however. Regards, Eric

Paul Enthusiast Jul 15, 2002, 5:17 PM Post #5 of 6 (11724 views) Re: [Eric] Matching On Metacharacters [In reply to] Can't Post I'm not 100% sure on what you are asking but if you are wanting to match meta characters you should use \Q \E in your regex to escape them...eg... if ($something =~ /^\Qmy.name@domain.com\E$/) {

mahesh18 New User Dec 2, 2002, 10:59 PM Post #6 of 6 (11636 views) Re: [Paul] Matching On Metacharacters [In reply to] Can't Post hi Paul, the answer that u have given about "Matching On Metacharacters" has gave a lot help to me in my project. thanx a lot for it as u share ur knowledge with all of us. regards/mahesh

Announcements     PerlGuru Announcements Perl Programming Help     Frequently Asked Questions     Beginner     Intermediate     Advanced     Regular Expressions     mod_perl     DBI     Win32 Programming Help Fun With Perl     Perl Quizzes - Learn Perl the Fun Way     Perl Golf     Perl Poetry Need a Custom or Prewritten Perl Program?     I need a program that...     I Need a Programmer for Freelance Work     Throw Down The Gauntlet General Discussions     General Questions     Feedback     Tutorial/Article Suggestions for The Learning Cent     Internet Security Other Programming Languages     Javascript     PHP

Search this forum this category all forums for All words Any words Whole Phrase (options)

Powered by Gossamer Forum v.1.2.0

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