gcc preprocessor file format

[jal0@attbi.com]

hi,

is there documented somewhere the format of the file format for .i files ( as 
when using the -save-temps options or -E option).

i am working on a program that uses gcc's preprocessor as a frontend to a 
program that creates .dot files for include file dependency analysis.

i've read through the cpp internals manual and couldn't find what i was looking 
for there.

thanks,
jal0