Re: [Help-source-highlight] Logo

[Martin Gebert]

Daniel Ajoy schrieb:
> Does source-highlight needs to be recompiled to make it
> work with an new programming Language? I might want to
> make it work with Logo.

If it only were recompiling... ;-)
First you'll have to write your own scanner; as a template you should 
look at the cpp_scanner.ll or java_scanner.ll file in the src/ subdir 
which are the "original ones" and which you could adapt for your 
purpose. They are simply (?!) Flex files; you can get an overview of 
Flex here:

http://dinosaur.compilertools.net/

Sorry if you already knew that. Second you have to include your scanner 
into the source-highlight code. Lorenzo wanted to write a How-To about 
including new scanners (you'll mainly have to adapt the Makefiles for 
that) and to simplify the Makefiles for that purpose, but I don't know 
how far he's gotten with that; last time I tried to do that (been a 
while now) it was some work... Hope he'll show up later and explain.

For testing new scanners, *I* simply replaced one of the other scanners 
(simply give your scanner file the name of a scanner you want to 
substitute), made source-highlight anew (by 'make') and called it with 
the input type of the substituted scanner; the finished scanner was sent 
to Lorenzo (with a new name). But there have been some obstacles (run 
the scanner through flex by hand, and AFAI remember also something with 
sed-ing some constructs in this file), so if you aren't willing to do 
some work by hand you shouldn't go this way.

Hope this gives you an overview. Good luck, and don't let yourself be 
discouraged by my sermon! ;-) It surely is worth the work.

Martin