+# add a tab at the begining of each non-empty line
+function enc_tab($str) {
+ $lines = explode("\n", $str);
+ $out = '';
+ foreach($lines as $line) {
+ if($line) {
+ $out .= "\t$line";
+ }
+ $out .= "\n";
+ }
+
+ # remove the extra newline added above
+ return substr($out, 0, -1);
+}
+
+?>