[Baypiggies] Mini languages
Ken Seehart
ken at seehart.com
Sun May 7 20:38:10 CEST 2006
I want to implement a simple language translator (a superset of C++),
but I haven't done anything of this kind since college (a couple decades
ago). I would like to use python tools as much as possible.
NICL code -> [C++ preprocessor (gcc)] -> [NICL translator] -> [C++
compiler (gcc)] -> object code
The translator needs to be able to parse special non-c++ syntax to
generate c++, and leave other code intact.
More documentation on my project here:
http://www.seehart.com/neuralintegrator.com/documentation/ni_book/defining_cell_types.st
I could almost get by with just a python script using regular
expressions (my grammar is simple enough), but I need to know a certain
amount of contextual information. E.g., if I am parsing "cellclass
mycell { ... }", the contents between the braces must be processed
accordingly. This means I have to know when I reach the closing brace
(which I can't do with regular expressions). However, I'm sure I could
do a prototype this way, using the assumption that the a closing brace
on a class matches "^};", but that would be just plain sloppy :-)
So I think one way or another I'm stuck with implementing an LALR parser.
I'm wondering if there is anyone in this community with experience doing
this kind of thing.
- Ken Seehart
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