fun with expressions and metacharacters

Posted on 1998-08-30
Last Modified: 2010-03-05
I need to do a couple of things.  First I need to get all the * 's out of a variable and also any -- , i just need to git rid of them, not replace them.  And also the more difficult of the two i believe, i have a varibable, say, $post, i need to check to see if it has www. something, i need to change that into <a href=www.whatever>www.whatever</a> cause on a chat i need to allow them to show links, html code is normally stripped. So the $post shold remain the same except change www. into <a href.. etc.  Thanks for the help in advance.  Any questions just post.
Question by:idadan
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Author Comment

ID: 1204611
Edited text of question
LVL 84

Expert Comment

ID: 1204612
$variable =~ tr/-*//d;

$post =~ s/(\bwww\.\S+)/<a href=$1>$1</a>/gi;

Author Comment

ID: 1204613
Talk about your quick 50, thanks so much, exactly what i was looking for.  btw, you forgot a \ before /a on the second one.. it's late, i understand, hehe.  Thanks again.
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Author Comment

ID: 1204614
Ok Ozo last change you want your 50?....
LVL 84

Accepted Solution

ozo earned 50 total points
ID: 1204615
$variable =~ tr/-*//d;

$post =~ s|(\bwww\.\S+)|<a href=$1>$1</a>|gi;

#You didn't say how to tell the end of "whatever"
#the above code assumes it ends with a blank character

Author Comment

ID: 1204616
Thanks for the help, great as always.

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