this calls for a regex or two. Something like this should do nicely: 
open LOG, "<$logfile" or die "Blerch: $!\n";
while (<LOG>) {
  if (/string-in-the-middle/) {print "<FONT>$_</FONT>";}
  if (/^string-at-the-beginning/) {print "<SOME_OTHER_FONT>$_</SOME_OT
+HER_FONT>";}
}

[download]

If you want the non-matching lines as well, you'll have to dress this up a bit more.

CU
Robartes-

In reply to Re: Processing Chat Logs by robartes
in thread Processing Chat Logs by jrnewquist

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