- $params{content} =~ s{(?:^|(?<=\s))(\\?)$smiley_regexp(?:(?=\s)|$)}{
- $1 ? $2 : htmllink($params{page}, $params{destpage}, $smileys{$2}, linktext => $2)
- }egs if length $smiley_regexp;
+
+ $_=$params{content};
+ return $_ unless length $smiley_regexp;
+
+MATCH: while (m{(?:^|(?<=\s))(\\?)$smiley_regexp(?:(?=\s)|$)}g) {
+ # Smilies are not allowed inside <pre> or <code>.
+ # For each tag in turn, match forward to find <tag> or
+ # </tag>. If it's </tag>, then the smiley is inside the
+ # tag, and is not expanded. If it's <tag>, the smiley is
+ # outside the block.
+ my $pos=pos;
+ foreach my $tag ("pre", "code") {
+ if (m/.*?<(\/)?\s*$tag\s*>/isg) {
+ if (defined $1) {
+ # Inside tag, so do nothing.
+ # (Smiley hunting will continue after
+ # the tag.)
+ next MATCH;
+ }
+ else {
+ # Reset pos back to where it was before
+ # this test.
+ pos=$pos;
+ }
+ }
+ }
+
+ if ($1) {
+ # Remove escape.
+ substr($_, $-[1], 1)="";
+ }
+ else {
+ # Replace the smiley with its expanded value.
+ substr($_, $-[2], length($2))=
+ htmllink($params{page}, $params{destpage}, $smileys{$2}, linktext => $2);
+ }
+ }