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* src/gram.h (rule_t): guard' and guard_line' are new members.

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* src/reader.c (symbol_list): `guard' and `guard_line' are new
members.
(symbol_list_new): Adjust.
(copy_action): action_line is the first line, not the last.
(copy_guard): Just as for actions, store the `action' only, not
the switch/case/break flesh.
Don't parse the user action that might follow the guard, let...
(readgram): do it, i.e., now, there can be an action after a
guard.
In other words the guard is just explicitly optional.
(packgram): Adjust.
* src/output.c (guards_output): New.
(output_parser): Call it when needed.
(output): Also free the guard and attrs obstacks.
* src/files.c, src/files.h (obstack_save): Remove.
(output_files): Remove.
As a result, if one needs the former `.act' file, using an
appropriate skeleton which requires actions and guards is now
required.
* src/main.c (main): Adjust.
* tests/semantic.at: New.
* tests/regression.at: Use `input.y' as input file name.
Avoid 8+3 problems by requiring input.c when the test needs the
parser.
This commit is contained in:
Akim Demaille
2001-12-27 18:06:06 +00:00
parent d945f5cd8e
commit f499b06243
11 changed files with 147 additions and 83 deletions
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47
src/files.c
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@@ -164,18 +164,6 @@ xfclose (FILE *ptr)
return result;
}
/*--------------------------------------------------.
| Save the content of the obstack OBS in FILENAME. |
`--------------------------------------------------*/
static void
obstack_save (struct obstack *obs, const char *filename)
{
FILE *out = xfopen (filename, "w");
size_t size = obstack_object_size (obs);
fwrite (obstack_finish (obs), 1, size, out);
xfclose (out);
}
/*------------------------------------------------------------------.
| Return the path to the skeleton which locaction might be given in |
@@ -436,38 +424,3 @@ compute_output_file_names (void)
attrsfile = stringappend (attrsfile, header_extension);
#endif /* MSDOS */
}
/*---------------------------.
| Produce the output files. |
`---------------------------*/
void
output_files (void)
{
#if 0
/* Seems to be invalid now --akim. */
/* If we output only the table, dump the actions in ACTFILE. */
if (no_parser_flag)
obstack_save (&action_obstack, stringappend (short_base_name, ".act"));
obstack_free (&action_obstack, NULL);
#endif
/* If we produced a semantic parser ATTRS_OBSTACK must be dumped
into its own file, ATTTRSFILE. */
if (semantic_parser)
{
char *temp_name;
obstack_save (&attrs_obstack, attrsfile);
temp_name = stringappend (short_base_name, EXT_GUARD_C);
#ifndef MSDOS
temp_name = stringappend (temp_name, src_extension);
#endif /* MSDOS */
obstack_save (&guard_obstack, temp_name);
}
obstack_free (&guard_obstack, NULL);
obstack_free (&attrs_obstack, NULL);
}