I'm not sure if this has been covered before and/or is a current feature or plugin (searched but couldn't find anything) but it'd be nice if syntax highlighting (for perl) were able to recognize the use of the /x operator that allows a regexp in perl to ignore whitespace (and thereby, spanning multiple lines without having the regexp look for a newline). Or even just have syntax highlighting recognize regexps that span multiple lines. It's a pet peeve but I figure if it's going to be doing syntax highlighting, it might as well cover all of the features of the language.