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Give a try to M4 as a back end.

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* lib/readpipe.c: New, from wdiff.
* src/Makefile.am (DEFS): Define PKGDATADIR, not BISON_SIMPLE and
BISON_HAIRY.
* src/system.h (BISON_HAIRY, BISON_SIMPLE): Remove the DOS and VMS
specific values.  Now it is m4 that performs the lookup.
* src/parse-skel.y: Remove.
* src/muscle_tab.c, src/muscle_tab.h (muscles_m4_output): New.
* src/output.c (actions_output, guards_output)
(token_definitions_output): No longer keeps track of the output
line number, hence remove the second argument.
(guards_output): Check against the guard member of a rule, not the
action member.
Adjust callers.
(output_skeleton): Don't look for the skeleton location, let m4 do
that.
Create `/tmp/muscles.m4'.  This is temporary, a proper temporary
file will be used.
Invoke `m4' on m4sugar.m4, muscles.m4, and the skeleton.
(prepare): Given that for the time being changesyntax is not
usable in M4, rename the muscles using `-' to `_'.
Define `defines_flag', `output_parser_name' and `output_header_name'.
* src/output.h (actions_output, guards_output)
(token_definitions_output): Adjust prototypes.
* src/scan-skel.l: Instead of scanning the skeletons, it now
processes the output of m4: `__oline__' and `#output'.
* data/bison.simple: Adjust to be used by M4(sugar).
* tests/Makefile.am: Use check_SCRIPTS to make sure `bison' is up
to date.
* tests/bison.in: Use the secrete envvar `BISON_PKGDATADIR'
instead of the dead `BISON_SIMPLE' and `BISON_HAIRY'.
* data/m4sugar/m4sugar.m4, data/m4sugar/version.m4: New,
shamelessly stolen from CVS Autoconf.
This commit is contained in:
Akim Demaille
2002-02-05 10:08:59 +00:00
parent 8e86444744
commit be2a1a68ef
13 changed files with 318 additions and 233 deletions
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23
src/muscle_tab.c
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@@ -92,3 +92,26 @@ muscle_find (const char *key)
muscle_entry_t *result = hash_lookup (muscle_table, &pair);
return result ? result->value : NULL;
}
/* Output the definition of all the current muscles into a list of
m4_defines. */
static void
muscle_m4_output (muscle_entry_t *entry, FILE *out)
{
fprintf (out, "m4_define([b4_%s],\n", entry->key);
fprintf (out, " [[%s]])\n\n\n", entry->value);
}
/* Output the definition of all the current muscles into a list of
m4_defines. */
void
muscles_m4_output (FILE *out)
{
hash_do_for_each (muscle_table,
(Hash_processor) muscle_m4_output,
out);
}