#!/usr/bin/perl -p
s-^(((((((h?t)?)t)?p)?:)?/)?/)?(?=\w+\.)-http://-;
__END__
http://www.perlmonks.org/
ttp://www.perlmonks.org/
tp://www.perlmonks.org/
p://www.perlmonks.org/
://www.perlmonks.org/
//www.perlmonks.org/
/www.perlmonks.org/
www.perlmonks.org/
produces
http://www.perlmonks.org/
http://www.perlmonks.org/
http://www.perlmonks.org/
http://www.perlmonks.org/
http://www.perlmonks.org/
http://www.perlmonks.org/
http://www.perlmonks.org/
http://www.perlmonks.org/
(update:) Replace \. with [./] if you want to support intranet URLs like http://cvs/. Supporting alternate-port intranet URLs like http://wiki:8080/ with just [./:] would cause ftp://... to become http://ftp://... but you could consider (?=\w+([./]|:\d)).
-
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 How to display code and escape characters
are good places to start.
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