cpplib: new lexer

[Zack Weinberg]

On Tue, Apr 25, 2000 at 01:41:33PM -0400, Horst von Brand wrote:
> Zack Weinberg <zack@wolery.cumb.org> said:
> 
> [...]
> 
> > > > There is a new warning emitted 
> > > > 
> > > > 	"The C Standard requires whitespsace after #define BLAH"
> > > > 
> > > > This warning is refering to the C99 Standard so this should be
> > > > explicit in the error message.
> 
> > I believe it was a constraint in C89 as well.
> 
> You mean:
> 
>   #define FOO
> 
> (with nothing between "FOO" and '\n') is illegal? Sounds rather strange...
> It is being used all over the place, so the noise level is unbearable. Not
> that it bootstraps, mind you ;-)

No, *that* is a bug, plain and simple.  Which should be fixed in CVS now.

What C99 and I believe C89 both prohibit is

#define COMMA,

or the subtler

#define BLOCK\
{ ... }  /* after \-newline replacement, no space between K and { */

zw