$out = "";
while ($data =~ s#(<lt=c24>)(\w{3} ?)(.*?)(<jtitle>.*?</jtitle>)#$1$3#is) { 
  $out .= $2. " " . $4 . "\n"; 
}


##</code><code>##

perl -p0 -e '$x="";while (s#(<lt=c24>)(\w{3} ?)(.*?)(<jtitle>.*?</jtitle>)#$1$3#is) { $x.=$2." ".$4."\n"; } } $_ = $x; {' data