In general I do not do more than one operation per line and still had trouble using </> in the past. I don't bother with parenthesis outside of string concatenation which is the only place I'll do more than one operation in a single line. I don't like using quoted strings either as they are too much of a headache. If I need a special/reserved character, I'll put it in an XML attribute and concatenate that.
Mostly, I don't trust the parser too far.
