On 2011-06-04, at 4:20 PM, Hendrik Boom wrote:
New to Gambit, old to Scheme and Lisp (bit I've been away from actively using them for decades, and much has changed).
I'm refamiliarising myself, taking a small project that I could write in several other languages in an hour, but doing it as learning project instead of a quickie implementation, finding out what's available nowadays.
The project is to take some overly dictatorial HTML and liberate it. You know the kind of thing, take out all the excess <br>'s and  .'s, figure out the real structure they're hiding, and reemit it using <p> and <h5> and other proper tags.
Now I can do all this from scratch, reading characters from ports and writing code to lex it and parse it and recognise idioms and such ... but that's so nose-to-the-grindstone.
Isn't the whole point of these new Scheme systems that we can work at a more conceptual level?
So I ask. What tools and libraries are already there to make this kind of task easier? Or more elaborate tasks of this kind -- because I will run into them later. I look in the web and find myself lost in beginner documentation. I guess I'm looking for links to heavier stuff.
-- hendrik
If you want to parse HTML in Scheme, let me recommend htmlprag (http://www.neilvandyke.org/htmlprag/) which is very portable.
If you want to generate a lexer or parser yourself, check out Silex and LALR-SCM (Scheme equivalents of lex and yacc), which were developed at the University of Montreal by Danny Dubé and Dominique Boucher respectively (http://www.iro.umontreal.ca/~dube/ and http://code.google.com/p/lalr-scm/).
Marc