* src/closure.c, src/derives.c, src/gram.h, src/lalr.c,
* src/nullable.c, src/output.c, src/print.c, src/print_graph.c,
* src/reader.c, src/reduce.c: Let rule_t.rhs point directly to the
RHS, instead of being an index in RITEMS.
Paul Eggert [Thu, 4 Apr 2002 21:34:34 +0000 (21:34 +0000)]
* doc/bison.texinfo: Update copyright date.
(Rpcalc Lexer, Symbols, Token Decl): Don't assume ASCII.
(Symbols): Warn about running Bison in one character set,
but compiling and/or running in an incompatible one.
Warn about character code 256, too.
Paul Eggert [Wed, 20 Mar 2002 07:30:00 +0000 (07:30 +0000)]
* src/bison.simple (YYCOPY): New macro.
(YYSTACK_RELOCATE): Use it.
Remove Type arg; no longer needed. All callers changed.
(yymemcpy): Remove; no longer needed.
Akim Demaille [Tue, 19 Mar 2002 08:10:21 +0000 (08:10 +0000)]
* tests/regression.at (%nonassoc and eof, Unresolved SR Conflicts)
(Solved SR Conflicts, %expect not enough, %expect right)
(%expect too much): Move to...
* tests/conflicts.at: this new file.
Akim Demaille [Tue, 19 Mar 2002 07:48:47 +0000 (07:48 +0000)]
* data/m4sugar/m4sugar.m4: Update from CVS Autoconf.
* data/bison.simple, data/bison.c++: Handle the `#define' part, so
that we can move to enums for instance.
* src/output.c (token_definitions_output): Output a list of
`token-name, token-number' instead of the #define.
(output_skeleton): Name this list `b4_tokens', not `b4_tokendefs'.
Robert Anisko [Mon, 4 Mar 2002 16:37:52 +0000 (16:37 +0000)]
* data/bison.c++: Unmerge value as yylval and value as yyval. Unmerge
location as yylloc and location as yyloc. Use YYLLOC_DEFAULT, and
provide a default implementation.
Akim Demaille [Mon, 4 Mar 2002 16:23:35 +0000 (16:23 +0000)]
* tests/input.at (Invalid $n, Invalid @n): Add the ending `;'.
* tests/output.at (AT_CHECK_OUTPUT): Likewise.
* tests/headers.at (AT_TEST_CPP_GUARD_H): Ditto.
* tests/semantic.at (Parsing Guards): Similarly.
* src/reader.at (readgram): Complain if the last rule is not ended
with a semi-colon.
Akim Demaille [Mon, 4 Mar 2002 13:56:41 +0000 (13:56 +0000)]
* src/closure.c, src/conflicts.c, src/lalr.c, src/print.c,
* src/reduce.c: Remove the `bitset_zero's following the
`bitset_create's, as now it is performed by the latter.
Akim Demaille [Mon, 4 Mar 2002 12:05:30 +0000 (12:05 +0000)]
Use bitset operations when possible, not loops over bits.
* src/conflicts.c (set_conflicts, count_sr_conflicts): Use
bitset_or.
* src/print.c (print_reductions): Use bitset_and, bitset_andn.
* src/reduce.c (useless_nonterminals): Formatting changes.
* src/warshall.c (TC): Use bitset_or.
Akim Demaille [Mon, 4 Mar 2002 12:03:36 +0000 (12:03 +0000)]
* src/L0.c, src/LR0.h (nstates): Be size_t.
Adjust comparisons (signed vs unsigned).
* src/conflics.c, src/lalr.c, src/lalr.h, src/output.c (LA): Now a
bitset*.
Adjust all dependencies.
Akim Demaille [Mon, 4 Mar 2002 12:03:01 +0000 (12:03 +0000)]
* src/closure.c (firsts): Now, also a bitset.
Adjust all dependencies.
(varsetsize): Remove, now unused.
* src/warshall.h, src/warshall.c: Now work on arrays of bitsets.
Akim Demaille [Mon, 25 Feb 2002 13:44:43 +0000 (13:44 +0000)]
* lib/tempname.c, lib/mkstemp.c, m4/mkstemp.m4: New, stolen from
Fileutils 4.1.5.
* configure.in: Invoke UTILS_FUNC_MKSTEMP.
* src/output.c (output_skeleton): Use mkstemp to create a real
temporary file.
Move the filling of `skeleton' and its muscle to...
(prepare): here.
(output): Move the definition of the prologue muscle to...
(prepare): here.
* src/system.h (DEFAULT_TMPDIR): New.
Paul Eggert [Thu, 14 Feb 2002 20:29:31 +0000 (20:29 +0000)]
Remove the support for C++ namespace cleanliness; it was
causing more problems than it was curing, since it didn't work
properly on some nonstandard C++ compilers. This can wait
for a proper C++ parser.
* NEWS: Document this.
* doc/bison.texinfo (Bison Parser, Debugging): Remove special mention
of C++, as it's treated like C now.
* src/bison.simple (YYSTD): Remove.
(YYSIZE_T, YYFPRINTF, YYPARSE_PARAM_ARG, YYPARSE_PARAM_DECL):
Treat C++ just like Standard C instead of trying to support
namespace cleanliness.
Paul Eggert [Thu, 14 Feb 2002 20:27:45 +0000 (20:27 +0000)]
(YYSTD): Remove.
(YYSIZE_T, YYFPRINTF, YYPARSE_PARAM_ARG, YYPARSE_PARAM_DECL):
Treat C++ just like Standard C instead of trying to support
namespace cleanliness.
Robert Anisko [Thu, 7 Feb 2002 16:41:23 +0000 (16:41 +0000)]
* data/bison.c++: Replace some direct m4 expansions by constants. Be
more consistent when naming methods and variables. Put preprocessor
directives around tables only needed for debugging.
Robert Anisko [Thu, 7 Feb 2002 11:35:40 +0000 (11:35 +0000)]
* data/bison.c++ (yy::b4_name::error_): New method, replaces yyerror in
C++ parsers.
(yy::b4_name::parse): Build verbose error messages, and use error_.
Akim Demaille [Tue, 5 Feb 2002 10:08:59 +0000 (10:08 +0000)]
Give a try to M4 as a back end.
* 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.
Akim Demaille [Tue, 5 Feb 2002 10:00:47 +0000 (10:00 +0000)]
* lib/hash.c, lib/hash.h: Replace with Fileutils 4.1's version.
* configure.in: Check for the declarations of free and malloc.
* src/muscle_tab.c: Adjust.
Paul Eggert [Tue, 29 Jan 2002 13:58:06 +0000 (13:58 +0000)]
* src/bison.simple (YYSIZE_T): Do not define merely because
YYSTACK_USE_ALLOCA is nonzero or alloca or _ALLOCA_H are defined.
On some platforms, <alloca.h> does not declare YYSTD (size_t).
Paul Eggert [Tue, 29 Jan 2002 13:55:32 +0000 (13:55 +0000)]
(YYSIZE_T): Do not define merely because YYSTACK_USE_ALLOCA is nonzero
or alloca or _ALLOCA_H are defined. On some platforms, <alloca.h>
does not declare YYSTD (size_t).
Akim Demaille [Sun, 27 Jan 2002 13:57:17 +0000 (13:57 +0000)]
Fix `%nonassoc and eof'.
* src/state.c (errs_dup): Aaaah! The failure was due to bytes
which were not properly copied! Replace
memcpy (res->errs, src->errs, src->nerrs);
with
memcpy (res->errs, src->errs, src->nerrs * sizeof (src->errs[0]));
!!!
* tests/regression.at (%nonassoc and eof): Adjust to newest
Autotest: `.' is not in the PATH.
Akim Demaille [Thu, 24 Jan 2002 17:09:34 +0000 (17:09 +0000)]
Bison dumps core when trying to complain about broken input files.
Reported by Cris van Pelt.
* src/lex.c (parse_percent_token): Be sure to set token_buffer.
* tests/regression.at (Invalid input: 1, Invalid input: 2): Merge
into...
(Invalid inputs): Strengthen: exercise parse_percent_token.