Paul Eggert [Mon, 7 Mar 2005 06:41:39 +0000 (06:41 +0000)]
* src/output.c (escaped_output): Renamed from
escaped_file_name_output, since we now use it for symbol tags as
well. All uses changed.
(symbol_destructors_output, symbol_printers_output):
Escape symbol tags too.
Problem reported by Matyas Forstner in
<http://lists.gnu.org/archive/html/bug-bison/2005-03/msg00009.html>.
Paul Eggert [Tue, 1 Mar 2005 00:41:33 +0000 (00:41 +0000)]
(Semantic Tokens): Fix scoping problem in
example, reported by Derek M Jones. Also, make the example even
more outrageous, to better illustrate how bad the problem is.
Paul Eggert [Mon, 7 Feb 2005 23:14:22 +0000 (23:14 +0000)]
(Improper handling of embedded actions and dollar(-N) in GLR parsers):
Renamed from "Improper handling of embedded actions and $-N in GLR
parsers", work around an Autoconf bug with dollar signs in test names.
Paul Eggert [Sat, 8 Jan 2005 05:22:36 +0000 (05:22 +0000)]
* data/yacc.c (yyparse): Pacify non-GCC compilers about yyerrorlab
being defined and not used.
* data/lalr1.cc (yyparse): Likewise.
Use "if (false)" rather than "if (0)".
Paul Eggert [Sun, 26 Dec 2004 06:13:31 +0000 (06:13 +0000)]
* tests/torture.at (Exploding the Stack Size with Alloca): Set
YYSTACK_USE_ALLOCA to 1 if __GNUC__ or alloca are defined;
otherwise, we're not testing alloca. Unfortunately there's no
simple way to consult HAVE_ALLOCA here.
Paul Eggert [Sun, 26 Dec 2004 06:12:18 +0000 (06:12 +0000)]
(Exploding the Stack Size with Alloca): Set
YYSTACK_USE_ALLOCA to 1 if __GNUC__ or alloca are defined;
otherwise, we're not testing alloca. Unfortunately there's no
simple way to consult HAVE_ALLOCA here.
Paul Eggert [Wed, 22 Dec 2004 21:19:47 +0000 (21:19 +0000)]
* NEWS: Bison-generated parsers no longer default to using the
alloca function (when available) to extend the parser stack, due
to widespread problems in unchecked stack-overflow detection.
* data/glr.c (YYMAXDEPTH): Remove undef when zero. It's the user's
responsibility to set it to a positive value. This lets the user
specify a value that is not a preprocessor constant.
* data/yacc.c (YYMAXDEPTH): Likewise.
(YYSTACK_ALLOC): Define only if YYSTACK_USE_ALLOCA is nonzero.
* doc/bison.texinfo (Stack Overflow): YYMAXDEPTH no longer needs
to be a compile-time constant. However, explain the constraints on it.
Also, explain the constraints on YYINITDEPTH.
(Table of Symbols): Explain that alloca is no longer the default.
Explain the user's responsibility if they define YYSTACK_USE_ALLOCA
to 1.
Akim Demaille [Wed, 22 Dec 2004 10:06:15 +0000 (10:06 +0000)]
* data/lalr1.cc (parser::token_number_type, parser::rhs_number_type)
(parser::state_type, parser::semantic_type, parser::location_type):
Private, not public.
(parser::parse): Return ints, not bool.
Returning a bool introduces a problem: 0 corresponds to false, and
it seems weird to return false on success. Returning true changes
the conventions for yyparse.
Alternatively we could return void and send an exception.
There is no clear consensus (yet?).
(state_stack, semantic_stack, location_stack): Rename as...
(state_stack_type, semantic_stack_type, location_stack_type): these.
Private, not public.
* tests/c++.at: New.
* tests/testsuite.at, tests/Makefile.am: Adjust.
Akim Demaille [Tue, 21 Dec 2004 12:26:56 +0000 (12:26 +0000)]
Don't impose std::string for filenames.
* data/lalr1.cc (b4_filename_type): New.
(position::filename): Use it.
(parser.hh): Move the inclusion of stack.hh and location.hh below
the user code, so that needed headers for the filename type can be
included first.
Forward declare them before the user code.
* tests/Makefile.am (check-local, installcheck-local): Pass
TESTSUITEFLAGS to the TESTSUITE.
Akim Demaille [Tue, 21 Dec 2004 12:03:47 +0000 (12:03 +0000)]
Don't impose std::string for filenames.
* data/lalr1.cc (b4_filename_type): New.
(position::filename): Use it.
(parser.hh): Move the inclusion of stack.hh and location.hh below
the user code, so that needed headers for the filename type can be
included first.
Akim Demaille [Fri, 17 Dec 2004 15:24:32 +0000 (15:24 +0000)]
* data/lalr1.cc: Extensive Doxygenation.
(error_): Rename as...
(error): this, since it is visible to the user.
Adjust callers.
(Parser::message): Now an automatic variable from...
(Parser::yyreport_syntax_error_): here.
* tests/actions.at, tests/calc.at, tests/regression.at: Adjust to
Parser::error.
* tests/input.at: Escape $.
Akim Demaille [Thu, 16 Dec 2004 09:06:08 +0000 (09:06 +0000)]
Use #define to handle the %name-prefix.
* data/glr.c, data/yacc.c: Comment changes.
* data/lalr1.cc (yylex): Use #define to select the name of yylex,
so that one can refer to yylex in the parser file, and have it
renamed, as is the case with other skeletons.
Paul Eggert [Thu, 16 Dec 2004 00:09:08 +0000 (00:09 +0000)]
* src/vcg.h (enum layoutalgorithm): Remove. All uses removed.
(struct node, struct graph):
Rename member expand to stretch. All uses changed.
(struct graph): Remove member layoutalgorithm. All uses removed.
* src/vcg.c (get_layoutalgorithm_str): Remove. All uses removed.
* src/vcg_defaults.h (G_STRETCH): Renamed from G_EXPAND.
All uses changed.
(N_STRETCH): Rename from N_EXPAND. All uses changed.
Akim Demaille [Wed, 15 Dec 2004 16:18:12 +0000 (16:18 +0000)]
Simplify the C++ parser constructor.
* data/lalr1.cc (debug_): Rename as...
(yydebug_): so that the parser's internals are always in the yy*
pseudo namespace.
Adjust uses.
(b4_parse_param_decl): Remove the leading comma as it is now only
called as unique argument list.
(Parser::Parser): Remove the constructor accepting a location and
an initial debugging level.
Remove from the other ctor the argument for the debugging level.
(debug_level_type, debug_level, set_debug_level): New.
* tests/actions.at, tests/calc.at, tests/regression.at: Adjust
constructor calls.
Akim Demaille [Wed, 15 Dec 2004 15:35:17 +0000 (15:35 +0000)]
Remove b4_root related material: failure experiment
(which goal was to allow to derive from an class).
* data/lalr1.cc (b4_root, b4_param, b4_constructor): Remove
definitions and uses.
Paul Eggert [Tue, 14 Dec 2004 18:48:42 +0000 (18:48 +0000)]
(struct yyGLRStack): yyerror_range now has 3 items,
not 2, since it's not portable to subtract 1 from the start of an
array. The new item 0 is never set or used. All uses changed.
(yyrecoverSyntaxError): Use YYLLOC_DEFAULT instead of assuming
the default definition of YYLLOC_DEFAULT. Problem reported
by Frank Heckenbach.
Paul Eggert [Sun, 12 Dec 2004 09:25:45 +0000 (09:25 +0000)]
(YYRHSLOC): Don't have two definitions, one for
the normal case and one for the error case. Just use the
first one uniformly. Problem reported by Frank Heckenbach.
(YYLLOC_DEFAULT): Use the conventions of yacc.c, so we can
use exactly the same macro in both places.
(yyerror_range): Now of type yyGLRStackItem, not YYLTYPE,
so that the normal-case YYRHSLOC works for the error case too.
All uses changed.
Paul Eggert [Sun, 12 Dec 2004 09:24:56 +0000 (09:24 +0000)]
(Location Default Action): Don't claim that
we have an array of locations. Use the same macro for both glr
and lalr parsers. Mention YYRHSLOC. Mention what happens when
the index is 0.
Paul Eggert [Sat, 11 Dec 2004 07:07:48 +0000 (07:07 +0000)]
(_AT_CHECK_PRINTER_AND_DESTRUCTOR): New arg
specifying whether the test should be skipped. Use it tp
specify that the [%defines %skeleton "lalr1.cc"] tests currently
fail on some hosts, and should be skipped.
Paul Eggert [Sat, 11 Dec 2004 06:13:07 +0000 (06:13 +0000)]
(relation_print, relation_digraph):
Relation sizes are of type relation_node, not size_t (this is
merely a doc fix, since the two types are equivalent).
(relation_transpose): Relation sizes are of type relation_node,
not int.
(top, infinity): Now of type relation_node, not int.
(traverse, relation_transpose): Use relation_node, not int.
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