V3 and Integrated CPP [was Re: V3 PATCH: Disable wide-character tests where necessary]

[Neil Booth <NeilB at earthling dot net>]

[Sorry, the subject changed in-between ORBS bounces]

Hi Mark,

What do you (and others) think about not only keeping integrated CPP
as the default for V3, but this being mandatory?

If integrated CPP has survived 2 to 4 weeks by itself, with only minor
buglets or no complaints from people, I would like to remove the
USE_CPPLIB hackery completely.

At present, we're having to maintain two sets of interfaces in the C
family front-ends; it would be nice to be rid of substantial
duplication.  Also, if it remains with the front-ends are trying to do
their own tokenisation, I cannot make further integration progress by
starting to move logic from c-lex.c to cpplex.c (where it more
properly belongs in my opinion), since the front-ends need it to be
there to do their own tokenisation / processing thing.  For example,
one of the first things I would like to move over is handling of
escapes in strings.

Further down the line, string concatenation and all the UCN stuff
should be in cpplib.

Thoughts?

Neil.