Your own Perl code displays itself with colored tags on a web page! Best if the entire web page is a CGI.
# display this Perl CGI code!
open (HIN,"code.pl") or die "Unable to read $0 file: $!\n";
  @code=<HIN>;
close (HIN);
foreach (@code) {
  # prevent html code from activating
  s/&/&amp;/g unless /\x26\x26/;
  s/</&lt;/g;
  # colorize comments in the code
  s@#(.*)$@<span style="color:green;">#$1</span>@g if /#\s/&&!/#\(/;
  # colorize certain Perl keywords
  s@^#!(.+)@#<span style="color:purple;">!$1</span>@;
s@(\s*print\s*|elsif|eq\s|ne\s|foreach|while|open\s|close\s|if\s|use\s
+|die\s|\sor\s)@<span style="color:red;">$1</span>@ig unless /\(print/
+;
  s@(\x26\x26\s|\x2d>|\x3d>|\x2e=|\x7c\x7c\s|\x3a\x3a|\x2d\x2d|\x2b\x2
+b)@<span style="color:#CC33FF;">$1</span>@g;# && -> => .= || :: -- ++
  # colorize variables
  s@([\$\@]\w+)@<span style="color:blue;">$1</span>@g; # vars
  s@([\$\@][!_|])@<span style="color:blue;">$1</span>@g; # $! $_ $| @!
+ @_ @|
  # add this changed code to the stream
  $purl.=$_;
}
print "<font size=-1><pre>$purl</pre></font>";
# end

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In reply to Code on web in color! by mushu

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


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