From: Simon Vandemoortele <deliriousNOSPAM@...>
Date: 2003-04-26T03:01:58+09:00
Subject: Parsing C++ with Ruby


_Context:_

My company uses a Directed Acyclic Graphs implementation of the
Observer/Notifier pattern. I would love to see automatic generation of 
diagrams representing those relationships.

_Challenge:_

It seems to me the easiest way to attain my goal is to generate a dot
file and have www.graphviz.org do the rest. I imagine the dot-file would
have to be generated by parsing C++ (yuck!).

How do I go about doing that ?

Do I simply parse the code looking for a multi-line patterns ? (See
example below.)  Or do I use existent parsers to generate a full-blown
semantic tree ?  (And then what ?)



Looking forward to your experiences/ideas,
Simon




_Sample code:_

The code I want to transform in dot edges looks like:
....
singleDirection (
  componentA->port("out"),
  componentB->port("input")
);

doubleDirection ( componentB->port("setting1"), componentD->port("setting1"));
....


-- 
There are 10 types of people in the world... 
those who understand binary and those who don't.