[chuck-users] anybody still use this thing?

Colton Hill colton-hill2014 at hotmail.com
Mon Sep 5 17:16:46 EDT 2016

I know regular expressions syntax, but I really don't know how I would 
manage to make an mml parser that actually works. Turn o4l8cdefg into 
octave 4, length 8, and c d e f g notes with an 8th note length since no 
length is specified. Then there's c4., which is c4^c8... Just bla...

On 9/5/2016 8:46 AM, Vasilij Schneidermann wrote:
> Hello Colton,
> I've written a Lisp interpreter in ChucK [1] and went through the
> parsing stage, among other obstacles.  String manipulation is indeed a
> bit weird, perhaps you're running into a bug where a substring cannot be
> cut out until the end of a string [2].
> If you can get away with it, I recommend using regular expressions to
> capture a single token, add it to an array of tokens and move forward in
> the input by its length until the end of input.  In this case you might
> be able to reuse my code.  Otherwise you'll need to write a lexer from
> scratch, for this Jack Crenshaw's compiler tutorial [3] might be useful.
> Good luck with your endeavor!
> [1]: https://lists.cs.princeton.edu/pipermail/chuck-users/2016-August/008110.html
> [2]: https://github.com/ccrma/chuck/issues/55
> [3]: http://www.compilers.iecc.com/crenshaw/
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