Re: lpeg C preprocessor

[David Manura <dm.lua@...>]

I posted an ANSI C lexer in Lpeg here: 
http://lua-users.org/wiki/LpegRecipes . This is currently without a C 
preprocessor though.  Feel free to improve it.

Johann Hibschman wrote:
> Would a useful intermediate step be using lua to run some kind
> of m4 substitute?  And do you know of such a project anywhere?

That's what 
http://lua-users.org/wiki/SlightlyLessSimpleLuaPreprocessor and also
http://lua-users.org/wiki/TextTemplate do.  The latter cites its 
inspiration from m1, a reduced version of m4.

> What cases can you think of where full parsing is useful?

Possible ideas include reflection, code analysis, syntax extension, 
code transformation, and code documentation--some of the same 
directions in C++, Metalua, and Luafish.

Here's another odd idea, turning this process inside-out: 
http://lua-users.org/wiki/CppMetaprogramming