Slightly off-topic propably, but to be able to create generic math user interfaces easily (for non-racketeers), infix->prefix and prefix->infix helpers would be great.
Infix->prefix should be tolerant to expected human-input variations (e.g. white space usage, math-symbol variants), and the output in both should be "the recommended way". I know some converters exist, but IIRC these only go half ways in some aspects. br, jukka ____________________ Racket Users list: http://lists.racket-lang.org/users
