Nyacc parse error tcc.h: DEF_BWL

[Jan Nieuwenhuizen <janneke@gnu.org>]

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Matt Wette writes:

Hi Matt!

> NYACC version 0.79.4 is released.

Congrats and thanks!

I have been working on Mes towards compiling tcc.c from tinycc[1] from
latest mob development[2] and was real happy to find that Nyacc handles
most everything, truly amazing piece of work!

I did find some Nyacc parsing problems, most of which were easy to work
around.  Now that I finally got round updating to 0.79.4, and verified
that Mescc works OK, I'll be sending some bugs I found that are still
present.

First isolated bug when compiling tcc.c is

    08:50:26 janneke@dundal:~/src/mes [env]
    $ mescc.scm bugs/def-bwl.c
    parsing: input
    (unknown):1: parse failed at state 88, on input "DEF_BWL"
    bugs/def-bwl.c:20: C99 parse error

Greetings,
janneke

[1] http://tinycc.org
[2] http://repo.or.cz/tinycc.git


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#define DEF_BWL(x) \
 DEF(TOK_ASM_ ## x ## b, #x "b") \
 DEF(TOK_ASM_ ## x ## w, #x "w") \
 DEF(TOK_ASM_ ## x ## l, #x "l") \
 DEF(TOK_ASM_ ## x, #x)

#if 1 // !__MESC__
#define DEF_BWLX DEF_BWL
#else // Workaround for Nyacc
#define DEF_BWLX(x) \
 DEF(TOK_ASM_ ## x ## b, #x "b") \
 DEF(TOK_ASM_ ## x ## w, #x "w") \
 DEF(TOK_ASM_ ## x ## l, #x "l") \
 DEF(TOK_ASM_ ## x, #x)
#endif

enum tcc_token {
    TOK_LAST
#define DEF(id, str) ,id
DEF_BWLX(mov)
#undef DEF
};

int
main (int argc, char *argv[])
{
  return TOK_ASM_mov;
}

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Jan Nieuwenhuizen <janneke@gnu.org> | GNU LilyPond http://lilypond.org
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