Warning: this is an htmlized version!
The original is across this link,
and the conversion rules are here.
#!/usr/bin/perl
# (find-angg ".zshrc" "psne")
# This Perl script is the soul of the "psne" shell function and its
# friends...
# Examples of usage:
#
# _psne '$vars' http://foo/bar extra1 extra2
# _psne '$vars' http:/foo/bar extra1 extra2
# _psne 'mkdir -p $dir\ncd $dir\nwget @args $url\n' http://foo/bar xtra1 xtra2
#
# (find-man "1 perlfunc" "shift ARRAY")
# (find-man "1 perlre" "legibility")
# (find-man "1 perldata")
# (find-man "1 perldata" "assign to undef")
# (find-man "1 perlop")
# (find-man "1 perlfunc" "eval EXPR")

($format, $url, @args) = @ARGV;
$_ = $url;

(($prot, $usrpasswd, $site, $port, $path, $fname, $query) =
    m%^(ftp|http|file)://([^/@]*@)?
       ([^@/:]*)(:[0-9]*)?/([^?]*/|)([^/?]*)(\?.*)?$
     %x) || die "\"$url\": not an url\n";

$dir = "$ENV{S}/$prot/$site/$path";
$urlfile = "$fname$query";

$vars = "  \$format = \"$format\"
  \$url = \"$url\"
  \@args = @args
  \$prot = \"$prot\"
  \$usrpasswd = \"$usrpasswd\"
  \$site = \"$site\"
  \$port = \"$port\"
  \$path = \"$path\"
  \$fname = \"$fname\"
  \$query = \"$query\"
  \$dir = \"$dir\"
  \$urlfile = \"$urlfile\"
";

print(eval("\"$format\""));