Beefy Boxes and Bandwidth Generously Provided by pair Networks
XP is just a number
 
PerlMonks  

comment on

( #3333=superdoc: print w/replies, xml ) Need Help??
You can try a negative lookbehind assertion (in perlman:perlre), but it has to be a fixed length pattern, and so won't work if there's spaces around the '=' (so you can first fix that):
s/href\s*=\s*/href=/ig; s,(?<!(?i:href=))((?:http|ftp|news)://\S*),<a href="$1">$1</a>,g; You might try to think of something besides '\S*' also, in case the user puts in a period after the href, or puts it between parenthesis or ???.
Update: Actually, if the user DID already make an href, they may or may not have put quotes around the '=' in the url, so maybe the easiest thing to do is rewrite all urls:
# Now its starting to get ugly! $str =~ s#((?i:<a\s+href\s*=\s*"?)?(?:http|ftp|news)://[^"]+)#substr($ +1,0,1) eq '<' ? $1 : qq!<a href="$1" >$1</a>!#eg;
I think that's right now (and you still may want to replace that '[^"]' with something else) :-)

Actually, even that may not work if there's other attributes besides 'href' in the tag, but I'm done. The rest is up to you :-)

In reply to Re: Adding href where needed. by runrig
in thread Adding href where needed. by electronicMacks

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post; it's "PerlMonks-approved HTML":



  • Are you posting in the right place? Check out Where do I post X? to know for sure.
  • Posts may use any of the Perl Monks Approved HTML tags. Currently these include the following:
    <code> <a> <b> <big> <blockquote> <br /> <dd> <dl> <dt> <em> <font> <h1> <h2> <h3> <h4> <h5> <h6> <hr /> <i> <li> <nbsp> <ol> <p> <small> <strike> <strong> <sub> <sup> <table> <td> <th> <tr> <tt> <u> <ul>
  • Snippets of code should be wrapped in <code> tags not <pre> tags. In fact, <pre> tags should generally be avoided. If they must be used, extreme care should be taken to ensure that their contents do not have long lines (<70 chars), in order to prevent horizontal scrolling (and possible janitor intervention).
  • Want more info? How to link or or How to display code and escape characters are good places to start.
Log In?
Username:
Password:

What's my password?
Create A New User
Domain Nodelet?
Chatterbox?
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others lurking in the Monastery: (7)
As of 2022-01-21 13:44 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?
    In 2022, my preferred method to securely store passwords is:












    Results (58 votes). Check out past polls.

    Notices?