X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/a81b1d4ad44d54416de04e1d30a360ae7ff4379f..81b51460c9ebe2d145e3bc39145621107d23ff35:/ChangeLog

diff --git a/ChangeLog b/ChangeLog
index 2315e33a..6cd76086 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,366 @@
+2001-12-05  Akim Demaille  <akim@epita.fr>
+
+	* src/nullable.c (set_nullable): Deobfuscate the handling of
+	ritem.
+	`symbol >= 0' is wrong now, use `rule_table[ruleno].useful'.
+
+	
+2001-12-05  Akim Demaille  <akim@epita.fr>
+
+	* src/gram.c, src/gram.h (ritem_print): New.
+	* src/gram.c (dummy): Remove, now there is actual code in gram.c.
+	(This useless function was defined only to work around VMS linkers
+	that can't handle compilation units with variables only).
+	* src/reduce.c (dump_grammar): Use it to trace the construction of
+	ritem.
+
+2001-12-04  Paul Eggert  <eggert@twinsun.com>
+
+	* src/bison.simple (union yyalloc): Change member names
+	to be the same as the stack names.
+	(yyparse): yyptr is now union yyalloc *, not char *.
+	(YYSTACK_RELOCATE): Likewise.  This avoids a GCC warning,
+	and may generate better code on some machines.
+	(yystpcpy): Use prototype if __STDC__ is defined, not just
+	if __cplusplus is defined.
+	
+2001-11-30  Akim Demaille  <akim@epita.fr>
+
+	* configure.in (WARNING_CFLAGS): Add -Werror when possible.
+	(CFLAGS): Do not include the WARNING_CFLAGS here, since GNU
+	Gettext doesn't compile cleanly, and dies with -Werror.
+	* src/Makefile.am, lib/Makefile.am, tests/atlocal.in (CFLAGS):
+	Include WARNING_CFLAGS here.
+	* lib/xstrdup.c: Include xalloc.h, so that xstrdup be declared
+	before being defined.
+
+2001-11-27  Paul Eggert  <eggert@twinsun.com>
+
+	* lib/quotearg.h (quotearg_n, quotearg_n_style):
+	First arg is int, not unsigned.
+	* lib/quotearg.c (quotearg_n, quotearg_n_style): Likewise.
+	(SIZE_MAX, UINT_MAX): New macros.
+	(quotearg_n_options): Abort if N is negative.
+	Avoid overflow check on hosts where size_t is 64 bits and int
+	is 32 bits, as overflow is impossible there.
+	Fix off-by-one typo that caused unnecessary reallocation.
+
+2001-11-29  Paul Eggert  <eggert@twinsun.com>
+
+	Name space cleanup in generated parser.
+
+	* doc/bison.texinfo (Bison Parser): Discuss system headers
+	and their effect on the user name space.
+
+	* src/bison.simple:
+	(YYSTACK_ALLOC, YYSTACK_FREE, union yyalloc, YYSTACK_GAP_MAX,
+	YYSTACK_BYTES, YYSTACK_RELOCATE): Do not define unless necessary,
+	i.e. unless ! defined (yyoverflow) || defined (YYERROR_VERBOSE).
+
+	(YYSIZE_T): New macro.  Use it instead of size_t, to avoid infringing
+	on user names when possible.
+
+	(YYSTACK_USE_ALLOCA): Do not define; just use any existing defn.
+	Simplify test for whather <alloca.h> exists.
+
+	(<stdlib.h>): Include if we will use malloc, and if standard C or C++.
+
+	(<stdio.h>): Include if YYDEBUG.
+
+	(yymemcpy): Renamed from __yy_memcpy.  Do not define unless
+	! defined (yyoverflow) && ! defined (yymemcpy).
+
+	(yymemcpy, yyparse): Rename local variables as needed so that
+	they all begin with 'yy'.
+
+	(yystrlen, yystpcpy): New functions.
+
+	(YY_DECL_NON_LSP_VARIABLES): Renamed from _YY_DECL_VARIABLES.
+	All uses changed.
+
+	(yyparse): size_t -> YYSIZE_T.  Use yystrlen and yystpcpy
+	instead of relying on string.h functions.  Use YYSTACK_ALLOC
+	and YYSTACK_FREE instead of malloc and free.
+
+2001-11-30  Akim Demaille  <akim@epita.fr>
+
+	* src/bison.simple (YYSTYPE, YYLTYPE): Move their definitions
+	before their first uses.
+	(YYBISON, YYPURE): Move to the top of the output.
+
+2001-11-30  Akim Demaille  <akim@epita.fr>
+
+	* tests/reduce.at (Useless Nonterminals): Fix.
+
+2001-11-30  Akim Demaille  <akim@epita.fr>
+
+	* src/bison.simple (YYSTACK_FREE): Use `do {;} while (0)' as empty
+	if body instead of `;' to pacify GCC's warnings.
+
+2001-11-30  Akim Demaille  <akim@epita.fr>
+
+	Instead of mapping the LHS of unused rules to -1, keep the LHS
+	valid, but flag the rules as invalid.
+
+	* src/gram.h (rule_t): `useful' is a new member.
+	* src/print.c (print_grammar): Adjust.
+	* src/derives.c (set_derives): Likewise.
+	* src/reader.c (packgram, reduce_output): Likewise.
+	* src/reduce.c (reduce_grammar_tables): Likewise.
+	* tests/reduce.at (Underivable Rules, Useless Rules): New.
+
+2001-11-30  Akim Demaille  <akim@epita.fr>
+
+	* src/reduce.c (reduce_output): Formatting changes.
+	* src/print.c (print_results, print_grammar): Likewise.
+	* tests/regression.at (Rule Line Numbers)
+	(Solved SR Conflicts, Unresolved SR Conflicts): Adjust.
+
+2001-11-30  Akim Demaille  <akim@epita.fr>
+
+	* src/reduce.c (nonterminals_reduce): Instead of throwing away
+	useless nonterminals, move them at the end of the symbol arrays.
+	(reduce_output): Adjust.
+	* tests/reduce.at (Useless Nonterminals): Adjust.
+
+2001-11-30  Akim Demaille  <akim@epita.fr>
+
+	* src/reduce.c: Various comment/formatting changes.
+	(nonterminals_reduce): New, extracted from...
+	(reduce_grammar_tables): here.
+	(reduce_grammar): Call nonterminals_reduce.
+
+2001-11-29  Paul Eggert  <eggert@twinsun.com>
+
+	* src/bison.simple (YYSTACK_REALLOC): Remove.
+	(YYSTACK_ALLOC): Resurrect this macro, with its old meaning.
+	(YYSTACK_FREE, YYSTACK_GAP_MAX, YYSTACK_BYTES, YYSTACK_RELOCATE):
+	New macros.
+	(union yyalloc): New type.
+	(__yy_memcpy): Last arg is size_t, not unsigned int, to remove
+	an arbitrary restriction on hosts where size_t is wider than int.
+
+	(yyparse): Don't dump core if alloca or malloc fails; instead, report
+	a parser stack overflow.  Allocate just one block of memory for all
+	three stacks, instead of allocating three blocks; this typically is
+	faster and reduces fragmentation.
+
+	Do not limit the number of items in the stack to a value that fits
+	in 'int', as this is an arbitrary limit on hosts with 64-bit
+	size_t and 32-bit int.
+
+2001-11-29  Marc Autret  <autret_m@epita.fr>
+
+	* tests/calc.at [AT_DATA_CALC_Y]: Use %error-verbose instead
+	of defining YYERROR_VERBOSE.
+	[AT_DATA]: $4 is now out of C declarations in the prologue.
+
+2001-11-28  Marc Autret  <autret_m@epita.fr>
+
+	* src/reader.c (parse_dquoted_param): New.
+	(parse_skel_decl): Use it.
+	* src/lex.h: Add its prototype.
+	* src/lex.c (literalchar): Become not static.
+
+2001-11-28  Marc Autret  <autret_m@epita.fr>
+
+	* src/output.h: And put its extern declaration here.
+	* src/output.c (error_verbose): Define here.
+	(prepare): Echo name modification.
+	* src/getargs.h: Clean its extern declaration.
+	* src/getargs.c (error_verbose_flag): Remove.
+	(getargs): Remove case 'e'.
+	* src/options.c (option_table): 'error-verbose' is now seen as simple
+	percent option.
+	Include output.h.
+
+	* src/reader.c (read_declarations): Remove case tok_include.
+	(parse_include_decl): Remove.
+	* src/lex.h (token_t): Remove tok_include.
+	* src/options.c (option_table): 'include' is now a simple command line
+	option.
+
+2001-11-28  Marc Autret  <autret_m@epita.fr>
+
+	* src/bison.simple: Adjust muscle names.
+	* src/muscle_tab.c (muscle_init): Also rename the muscles.
+	* src/output.c (prepare): s/_/-/ for the muscles names.
+	(output_parser): When scanning for a muscle, allow '-' instead of '_'.
+
+2001-11-28  Marc Autret  <autret_m@epita.fr>
+
+	* src/bison.simple: Fix debug.
+	[YYERROR_VERBOSE]: Re-integrate as an internal macro.
+
+2001-11-28  Akim Demaille  <akim@epita.fr>
+
+	* src/LR0.c (shifts_new): New.
+	(save_shifts, insert_start_shift, augment_automaton): Use it.
+
+2001-11-28  Akim Demaille  <akim@epita.fr>
+
+	* src/closure.c (closure): `b' and `ruleno' denote the same value:
+	keep ruleno only.
+
+2001-11-28  Akim Demaille  <akim@epita.fr>
+
+	* src/closure.c (closure): Instead of looping over word in array
+	then bits in words, loop over bits in array.
+
+2001-11-28  Akim Demaille  <akim@epita.fr>
+
+	* src/closure.c (closure): No longer optimize the special case
+	where all the bits of `ruleset[r]' are set to 0, to make the code
+	clearer.
+
+2001-11-28  Akim Demaille  <akim@epita.fr>
+
+	* src/closure.c (closure): `r' and `c' are new variables, used to
+	de-obfuscate accesses to RULESET and CORE.
+
+2001-11-28  Akim Demaille  <akim@epita.fr>
+
+	* src/reduce.c (reduce_print): Use ngettext.
+	(dump_grammar): Improve the trace accuracy.
+
+2001-11-28  Akim Demaille  <akim@epita.fr>
+
+	* src/reduce.c (dump_grammar): Don't translate trace messages.
+
+2001-11-28  Akim Demaille  <akim@epita.fr>
+
+	* tests/reduce.at (Useless Terminals, Useless Nonterminals): New.
+	* src/reduce.c (reduce_grammar_tables): Do not free useless tags,
+	as all tags are free'ed afterwards.
+	From Enrico Scholz.
+
+2001-11-27  Paul Eggert  <eggert@twinsun.com>
+
+	* src/bison.simple (YYSTACK_REALLOC): Fix typo that caused us to
+	use alloca when we didn't want to, and vice versa.
+
+2001-11-27  Marc Autret  <autret_m@epita.fr>
+
+	* src/muscle_tab.c (muscle_init): Remove 'verbose' muscle
+	initialization.
+	* src/output.c (prepare): Remove its update.
+
+2001-11-27  Marc Autret  <autret_m@epita.fr>
+
+	* tests/torture.at [AT_DATA]: Remove YYERROR_VERBOSE definition.
+	Use %error-verbose.
+
+2001-11-27  Marc Autret  <autret_m@epita.fr>
+
+	* src/bison.simple: Remove YYERROR_VERBOSE using.
+	Use %%error_verbose.
+	(yyparse): Likewise.
+	* src/output.c (prepare): Give its final value.
+	* src/muscle_tab.c (muscle_init): Init new muscle 'error_verbose'.
+	* src/getargs.h: Add its extern declaration.
+	* src/getargs.c (error_verbose_flag): New int.
+	(getargs): Update to catch new case.
+	* src/options.c (option_table): 'error-verbose' is a new option.
+	(shortopts): Update.
+
+2001-11-27  Akim Demaille  <akim@epita.fr>
+
+	* src/system.h: Use intl/libgettext.h.
+	* src/Makefile.am (INCLUDES): Add -I $(top_srcdir).
+
+2001-11-27  Akim Demaille  <akim@epita.fr>
+
+	* tests/torture.at (Exploding the Stack Size with Malloc):
+	s/YYSTACK_USE_ALLOCA_ALLOCA/YYSTACK_USE_ALLOCA/.
+
+2001-11-27  Akim Demaille  <akim@epita.fr>
+
+	* src/files.c: Include error.h.
+	Reported by Hans Aberg.
+
+2001-11-26  Marc Autret  <autret_m@epita.fr>
+
+	* src/reader.c (parse_include_decl): New, not yet implemented.
+	(read_declarations): Add case tok_include.
+	* src/getargs.h (include): Add its extern definition.
+	* src/getargs.c (include): New const char *.
+	(getargs): Add case '-I'.
+	* src/options.c (option_table): Add include as command line and
+	percent option.
+	* src/lex.h (token_t): Add tok_include.
+
+2001-11-26  Akim Demaille  <akim@epita.fr>
+
+	* src/reader.c (readgram): Make sure rules for mid-rule actions
+	have a lineno equal to that of their host rule.
+	Reported by Hans Aberg.
+	* tests/regression.at (Rule Line Numbers): New.
+
+2001-11-26  Akim Demaille  <akim@epita.fr>
+
+	* src/LR0.c (allocate_itemsets): kernel_size contains ints, not
+	size_ts.
+
+2001-11-26  Akim Demaille  <akim@epita.fr>
+
+	* src/complain.c, src/complain.h (error): Remove, provided by
+	lib/error.[ch].
+
+2001-11-26  Akim Demaille  <akim@epita.fr>
+
+	* src/reader.c (read_declarations): Don't abort on tok_illegal,
+	issue an error message.
+	* tests/regression.at (Invalid %directive): New.
+	Reported by Hans Aberg.
+
+2001-11-26  Akim Demaille  <akim@epita.fr>
+
+	* configure.in: Invoke AC_FUNC_OBSTACK and AC_FUNC_ERROR_AT_LINE.
+	* lib/Makefile.am (libbison_a_SOURCES): Adjust.
+
+2001-11-26  Akim Demaille  <akim@epita.fr>
+
+	* src/conflicts.c (conflicts_print): Don't complain at all when
+	there are no reduce/reduce conflicts, and as many shift/reduce
+	conflicts as expected.
+	* tests/regression.at (%expect right): Adjust.
+
+2001-11-23  Akim Demaille  <akim@epita.fr>
+
+	* lib/alloca.c: Update, from fileutils.
+
+2001-11-23  Akim Demaille  <akim@epita.fr>
+
+	* lib/Makefile.am (libbison_a_LIBADD): Add @ALLOCA@.
+
+2001-11-23  Akim Demaille  <akim@epita.fr>
+
+	* src/system.h: Include alloca.h.
+	* src/main.c (main) [C_ALLOCA]: Call alloca (0).
+
+2001-11-23  Akim Demaille  <akim@epita.fr>
+
+	* src/print_graph.c (print_actions): Remove `rule', unused.
+	* src/LR0.c (kernel_size): Contain `int' instead of `size_t' to
+	pacify GCC's signed < unsigned warnings.
+	* src/closure.c (itemsetsize): Likewise.
+	* src/reader.c (symbol_list_new): Static.
+
+2001-11-23  Akim Demaille  <akim@epita.fr>
+
+	Attaching lineno to buckets is stupid, since only one copy of each
+	symbol is kept, only the line of the first occurrence is kept too.
+
+	* src/symtab.h, src/symtab.c (bucket): Remove the line member.
+	* src/reader.c (rline_allocated): Remove, unused.
+	(symbol_list): Have a `line' member.
+	(symbol_list_new): New.
+	(readgram): Use it.
+	* src/print.c (print_grammar): Output the rule line numbers.
+	* tests/regression.at (Solved SR Conflicts)
+	(Unresolved SR Conflicts): Adjust.
+	Reported by Hans Aberg.
+
 2001-11-22  Marc Autret  <autret_m@epita.fr>
 
 	* src/bison.simple [YYERROR_VERBOSE]: Force its value to be 1 or 0.