Solved

RegEx

Posted on 2004-10-20
3
236 Views
Last Modified: 2010-03-05
I have a string containing: $to = "$a,$b,$c,$d,$e".
$a through $e contain multiple email addresses separated by commas, no space in te $to line.
If $a is present then the initial value of the $to would be: $to = ",email1@place,com,....."
I tried:
 $to =~ s/^,//;
 $to =~ s/,,/,/;

Which seems to work however, if the string is $to = ",b,c,,,", it will return $to = "b,c,," not $to = "b,c"

Any ideas?

I even tried: $to =~ s/,+/,/;

Thanks!
0
Comment
Question by:rw263
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 2
3 Comments
 
LVL 84

Accepted Solution

by:
ozo earned 50 total points
ID: 12359777
$to =~ s/^,+//;
$to =~ s/,+$//;
$to =~ s/,+/,/g;
0
 
LVL 84

Expert Comment

by:ozo
ID: 12359789
(but be aware that "," is a valid character in an email name)
0
 

Author Comment

by:rw263
ID: 12359872
wonder why mine didn't work, but this does. thanks ozo!
0

Featured Post

On Demand Webinar - Networking for the Cloud Era

This webinar discusses:
-Common barriers companies experience when moving to the cloud
-How SD-WAN changes the way we look at networks
-Best practices customers should employ moving forward with cloud migration
-What happens behind the scenes of SteelConnect’s one-click button

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
crawling gofundme 4 151
instmodsh - listing perl modules 2 97
PERL - Find newest folder 12 195
Perl regex to replace any capital letters not preceded by ">" 6 180
Many time we need to work with multiple files all together. If its windows system then we can use some GUI based editor to accomplish our task. But what if you are on putty or have only CLI(Command Line Interface) as an option to  edit your files. I…
A year or so back I was asked to have a play with MongoDB; within half an hour I had downloaded (http://www.mongodb.org/downloads),  installed and started the daemon, and had a console window open. After an hour or two of playing at the command …
Explain concepts important to validation of email addresses with regular expressions. Applies to most languages/tools that uses regular expressions. Consider email address RFCs: Look at HTML5 form input element (with type=email) regex pattern: T…

738 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question