2005-12-21 Joel E. Denny
* tests/cxx-type.at: Construct a tree, count the parents of shared
nodes, and free each node once and only once. Previously, the memory
for semantic values was leaked instead.
2005-12-21 Joel E. Denny
* data/glr.c (struct yyGLRStack): If pure, add yyval and yyloc members.
(yylval, yylloc): If pure, #define to yystackp->yyval and
yystackp->yyloc similar to yychar and yynerrs.
(yyparse): If pure, remove local yylval and yylloc. Add local
yystackp to accommodate pure definitions of yylval and yylloc.
(b4_lex_param, b4_lyyerror_args, b4_lpure_args): If pure, change
yylvalp and yyllocp to &yylval and &yylloc.
(nerrs, char, lval, lloc): If pure, add #define's for b4_prefix[]
namespace. Previously, nerrs and char were missing, but lval and lloc
weren't necessary.
(yyprocessOneStack, yyreportSyntaxError, yyrecoverSyntaxError): Remove
yylvalp and yyllocp parameters since, if pure, these are now always
accessible through yystackp. If not pure, they are still accessible
globally.
* data/glr.c, data/yacc.c (YYLLOC_DEFAULT): Change `if (N)' to
`if (YYID (N))' to pacify lint.
2005-12-21 Akim Demaille
YYACCEPT, YYERROR, and YYABORT, as user actions, should not
destroy the RHS symbols of a rule.
* data/yacc.c (yylen): Initialize to 0.
Keep its value to the number of items to possibly shift.
In particular, a regular successful parse that ends on YYFINAL by
a (internal) YYACCEPT must not have yylen != 0.
(yyerrorlab, yyreturn): Pop the RHS.
Reorder a bit to emphasize the `shifting' bits of code.
(YYPOPSTACK): Now accept a number of items to pop.
* data/lalr1.cc: Likewise.
* data/glr.c: Formatting changes.
Use goto instead of fall through.
* doc/bison.texinfo (Destructor Decl): Complete.
2005-12-20 Juan Manuel Guerrero
* Makefile.am: DJGPP specific files added to EXTRA_DIST.
* djgpp/Makefile.maint: Fix PACKAGE variable computation.
* djgpp/config.bat: Replace every occurence of the file name
scan-gram-c.c with c-scan-gram.c. The same for scan-skel-c.c with
c-scan-skel.c to conform with the 8.3 file name restriction on MSDOS.
* djgpp/config.sed: Replace every occurence of the file name
scan-gram-c.c with c-scan-gram.c. The same for scan-skel-c.c with
c-scan-skel.c to conform with the 8.3 file name restriction on MSDOS.
* djgpp/djunpack.bat: DJGPP specific file.
* djgpp/fnchange.lst: DJGPP specific file.
* djgpp/README.in: Add new information about how to unpack the bison
source on MSDOS and other systems which have 8.3 file name restrictions
using djunpack.bat and fnchange.lst.
2005-12-12 Paul Eggert
* bootstrap (build_cvs_prefix): Remove; unused.
(CVS_PREFIX): Adjust to yesterday's Savannah reorganization
when getting gnulib.
2005-12-12 "Joel E. Denny"
* data/glr.c: Reorder typedef declarations for structs to match order
of struct declarations.
Rename yystack everywhere to yystackp except in yyparse where it's not
a pointer.
(yyglrShift): Change parameter YYSTYPE yysval to YYSTYPE* yyvalp for
consistency.
(yyis_table_ninf): Change 0 to YYID (0) to pacify lint.
(yyreportSyntaxError): Add /*ARGSUSED*/ to pacify lint.
(yyparse): Change while (yytrue) to while ( YYID (yytrue)) to pacify
lint.
2005-12-09 Paul Eggert
* tests/sets.at (Accept): Fix typos in regular expression used to
sed out the final state number.
Work around portability problem on Solaris 10: flex-generated
files include before , which messes up
because the latter defines __EXTENSIONS__. Address the problem
by creating two new little files that include first,
then include the flex-generated files. Rewrite everyone else
to include first, as well.
* lib/timevar.c: Always include "config.h".
* src/Makefile.am (bison_SOURCES): Replace scan-gram.l with
scan-gram-c.c, and scan-skel.l with scan-skel-c.c.
(EXTRA_bison_SOURCES): New macro.
* src/scan-gram-c.c, src/scan-skel-c.c: New files.
* src/system.h: Don't include config.h.
* src/LR0.c: Include first.
* src/assoc.c: Likewise.
* src/closure.c: Likewise.
* src/complain.c: Likewise.
* src/conflicts.c: Likewise.
* src/derives.c: Likewise.
* src/files.c: Likewise.
* src/getargs.c: Likewise.
* src/gram.c: Likewise.
* src/lalr.c: Likewise.
* src/location.c: Likewise.
* src/main.c: Likewise.
* src/muscle_tab.c: Likewise.
* src/nullable.c: Likewise.
* src/output.c: Likewise.
* src/parse-gram.y: Likewise.
* src/print.c: Likewise.
* src/print_graph.c: Likewise.
* src/reader.c: Likewise.
* src/reduce.c: Likewise.
* src/relation.c: Likewise.
* src/state.c: Likewise.
* src/symlist.c: Likewise.
* src/symtab.c: Likewise.
* src/tables.c: Likewise.
* src/uniqstr.c: Likewise.
* src/vcg.c: Likewise.
* src/parse-gram.y: Fix minor problems uncovered by lint.
(current_lhs, current_lhs_location): Now static.
(current_assoc): Remove unused variable.
Cleanups so that Bison-generated parsers have less lint.
* data/c.m4 (b4_yydestruct_generate, b4_yysymprint_generate):
Prepend /*ARGSUSED*/, for lint's sake.
* data/glr.c (YYUSE): Properly parenthesize, and use an alternate
definition if 'lint' is defined.
(YYID): New macro (or function, if lint).
All uses of /*CONSTCOND*/0 replaced by YYID(0).
* data/yacc.c: Likewise.
* data/glr.c (yyuserAction, yyuserMerge, yy_reduce_print):
(yyrecoverSyntaxError): Prepend /*ARGSUSED*/.
* data/glr.cc (YYLLOC_DEFAULT): Omit /*CONSTCOND*/ since this code
is C++ only.
* data/lalr1.cc (YYUSE): Just use a cast, since this code is C++ only.
* data/yacc.c (YYSTACK_FREE) [defined YYSTACK_ALLOC]:
Use YYID(0) rather than 0, for lint.
(yystrlen): Rewrite to avoid lint warning about ptrdiff_t overflow.
(yysyntax_error): Rewrite to avoid lint warnings about parenthesization.
2005-12-07 Paul Eggert
* tests/glr-regression.at
(Improper handling of embedded actions and dollar(-N) in GLR parsers):
Close memory leak reported by twlevo.
2005-12-06 "Joel E. Denny"
* data/glr.c (yyprocessOneStack, yyparse): Synchronize the shift for
all stacks.
(yyparse): Iterate another stack in order to call user destructors.
* tests/glr-regression.at (No users destructors if stack 0 deleted):
New test case.
(Duplicated user destructor for lookahead): This test now is expected
to succeed.
2005-12-01 Paul Eggert
* NEWS: Document the following change.
* data/yacc.c: Say "parser skeleton" rather than "file", since
it's no longer just a file.
* data/glr.c: Grant a special exception for C GLR parsers, that
reads like the already-existing exception for C LALR(1) parsers.
* data/glr.cc: Likewise.
* data/lalr1.cc: Likewise.
* data/location.cc: Likewise.
* data/yacc.c: Reword the "written by" statement to clarify that
it was the parser skeleton, not the entire output file.
* data/glr.c: Written by Paul Hilfinger.
* data/glr.cc: Written by Akim Demaille.
* data/lalr1.cc: Likewise.
2005-11-18 Paul Eggert
* data/yacc.c (yy_reduce_print, YY_REDUCE_PRINT):
Fix typos in previous change that broke 'make check'.
YY_REDUCE_PRINT cannot be a pseudo-varargs macro; that isn't
supported in C.
* tests/calc.at (_AT_CHECK_CALC,_AT_CHECK_CALC_ERROR):
Don't check NUM-STDERR-LINES, since the output format is fluctuating.
We can revert this once things settle down.
* src/conflicts.c (conflicts_print): Don't print file name twice
when %expect fails because there were no conflicts.
* doc/bison.texinfo (Expect Decl): Tighten up wording in previous
change.
* tests/conflicts.at (%expect not enough, %expect too much):
(%expect with reduce conflicts): Adjust to new behavior.
2005-11-18 Akim Demaille
* src/conflicts.c (conflicts_print): Unsatisfied %expectation are
errors.
* NEWS: Document this.
* doc/bison.texinfo (Expect Decl): Likewise.
2005-11-16 Akim Demaille
Generalize the display of semantic values and locations in traces.
* data/glr.c (yy_reduce_print): Fix indices (again).
* data/c++.m4 (b4_rhs_value, b4_rhs_location): Don't expect
literal integers.
* data/lalr1.cc (yyreduce_print): Rename as...
(yy_reduce_print): this.
Display values and locations.
* data/yacc.c (yy_reduce_print): Likewise.
(YY_REDUCE_PRINT): Adjust to pass the required arguments.
(yysymprint): Move higher to be visible from yy_reduce_print).
(yyparse): Adjust.
* tests/calc.at: Adjust the expected length of the traces.
2005-11-14 Akim Demaille
* data/glr.c (yy_reduce_print): The loop was quite wrong: type are
from 1 to N, while values and location start at 0.
(b4_rhs_location, b4_rhs_value): Add parens around $1 and $2.
2005-11-14 Akim Demaille
* data/glr.c (yy_reduce_print): Fix the $ number.
2005-11-14 Akim Demaille
"Use" parse parameters.
* data/c.m4 (b4_parse_param_for, b4_parse_param_use): New.
* data/glr.c, data/glr.cc: Use them.
* data/glr.c (YYUSE): Have a C++ definition that supports
non-pointer types.
2005-11-14 Akim Demaille
* data/glr.c (yyexpandGLRStack): Declare only if defined.
2005-11-14 Akim Demaille
* data/glr.cc: New.
* data/m4sugar/m4sugar.m4 (m4_prepend): New.
2005-11-12 Akim Demaille
Let position and location be PODs.
* data/location.cc (position::initialize, location::initialize): New.
(position::position, location::location): Define only if
b4_location_constructors is defined.
* data/lalr1.cc (b4_location_constructors): Define it for backward
compatibility.
* doc/bison.texinfo (Initial Action Decl): Use initialize.
2005-11-12 Akim Demaille
* data/lalr1.cc: Move the body of the ctor and dtor into the
parser file (instead of the header).
Wrap the implementations in a "namespace yy".
2005-11-12 Akim Demaille
Have glr.c include its header file when created.
* data/glr.c (b4_shared_declarations): New.
Output them verbatim in the parser if !%defines, otherwise
output then in the header file, and include it instead.
2005-11-11 Akim Demaille
* data/glr.c: Comment changes.
2005-11-11 Akim Demaille
When yydebug, report semantic and location values for reductions.
* data/glr.c (yy_reduce_print): Report the semantic values and the
locations.
(YY_REDUCE_PRINT): Adjust.
(yyglrReduce): Use them.
(b4_rhs_value, b4_rhs_location): Remove m4_eval invocations.
* data/c.m4 (b4_yysymprint_generate): Specify the const arguments.
* tests/calc.at (_AT_CHECK_CALC_ERROR): Remove the reduction
traces.
2005-11-10 Akim Demaille
* data/glr.c (yynewGLRStackItem, YY_RESERVE_GLRSTACK): New.
(yyaddDeferredAction, yyglrShift, yyglrShiftDefer): Use them.
(yyexpandGLRStack, YYRELOC): Define only when YYSTACKEXPANDABLE.
2005-11-09 Albert Chin-A-Young
* m4/cxx.m4, examples/Makefile.am: Don't build
examples/calc++ if no C++ compiler is available. (trivial change)
2005-11-09 Akim Demaille
* src/scan-skel.l: Use a couple of asserts.
2005-11-03 Akim Demaille
In some (weird) cases, the final state number is incorrect.
Reported by Alexandre Duret-Lutz.
* src/LR0.c (state_list_append): Remove the computation of
final_state.
(save_reductions): Do it here.
(get_state): Alpha conversion.
(generate_states): Use a for loop.
* src/gram.h (item_number_is_rule_number)
(item_number_is_symbol_number): New.
* src/state.c: Use assert.
* src/system.h: Include assert.h.
* tests/sets.at (Accept): New.
2005-10-30 Paul Hilfinger
* data/glr.c (yyfill): Adjust comment.
(yyresolveAction): Initialize default location properly
for empty right-hand sides.
(yydoAction): Ditto.
Add comment explaining apparently dead code.
* tests/glr-regression.at
(Incorrectly initialized location for empty right-hand side in GLR):
New test.
2005-10-30 Paul Eggert
* bootstrap (cleanup_gnulib): New function. Use it to clean up
gnulib when interrupted. This fixes some race conditions and
works around some portability problems (one noted by Paul
Hilfinger).
2005-10-22 Akim
* Makefile.cfg: Adjust to config -> build-aux.
Reported by twledo.
2005-10-21 Akim Demaille
* data/c.m4 (b4_yydestruct_generate, b4_yysymprint_generate): Pass
the %parse-params.
* data/glr.c (YY_SYMBOL_PRINT, yydestroyGLRState): Adjust.
* data/yacc.c (b4_Pure_if): Rename as...
(b4_yacc_pure_if): this.
(YY_SYMBOL_PRINT, yyparse): Adjust.
* doc/bison.texinfo: Formatting changes.
2005-10-21 Akim Demaille
Finish the transition config -> build-aux.
* configure.ac, Makefile.am: Use build-aux.
* config/prev-version, config/announce-gen, config/Makefile.am:
Move to...
* build-aux/prev-version, build-aux/announce-gen,
* build-aux/Makefile.am: here.
2005-10-14 Akim Demaille
* examples/calc++/test: Use set -x only when VERBOSE.
2005-10-13 Paul Eggert
* NEWS: Bison now warns if it finds a stray `$' or `@' in an action.
* src/scan-gram.l ([$@]): Implement this.
2005-10-13 Akim Demaille
* src/scan-skel.l: Output the base name parts of the parser and
header file names.
* tests/output.at (AT_CHECK_OUTPUT): Support subdirectories, and
additional checks.
Use this to exercise C++ outputs in subdirs.
Reported by Oleg Smolsky.
2005-10-12 Paul Eggert
* data/c.m4 (b4_c_function_def): Look at __C99_FUNC__, not at
__STDC_VERSION__, as IBM cc 7.0 doesn't define the latter either.
Problem reported by John P. Hartmann.
* data/yacc.c (YYMODERN_C): Likewise. Don't define if the user has
already defined it.
2005-10-12 Akim Demaille
* src/parse-gram.y (version_check): Exit 63 to please missing
(stands for "version mismatch).
* tests/input.at, doc/bison.texinfo: Adjust.
2005-10-10 Paul Eggert
Work around portability problems with Visual Age C compiler
(xlc and xlC_r) reported by John P. Hartmann.
* data/location.cc (initial_column, initial_line): Remove.
All uses replaced by 0 and 1.
* src/scan-gram.l (gram_wrap): Redefine to avoid bug in flex 2.5.31
that xlc complains about.
* src/scan-skel.l (skel_wrap): Likewise.
* data/c.m4 (b4_c_function_def): Look at __STDC_VERSION__ as well
as __STDC__.
* data/yacc.c (YYMODERN_C): New macro, which also looks at
__STDC_VERSION__. Use it everywhere instead of looking at
__STDC__ and __cplusplus.
2005-10-10 Akim Demaille
* examples/calc++/test: Be quiet unless VERBOSE.
2005-10-05 Paul Eggert
* data/c.m4 (yydestruct, yysymprint):
Use YYUSE instead of casting to void.
* data/glr.c (YYUSE): New macro.
(yyuserMerge, yyreportAmbiguity, yyreportSyntaxError):
Use it instead of rolling our own.
(YYLLOC_DEFAULT, YYCHK, YYDPRINTF, YY_SYMBOL_PRINT, YY_REDUCE_PRINT):
(YYCHK1):
Use /*CONSTCOND*/ to suppress lint warnings.
* data/lalr1.cc (YYLLOC_DEFAULT, YY_SYMBOL_PRINT, YY_REDUCE_PRINT):
(YY_STACK_PRINT): Use 'false' not '0'.
(YYUSE): New macro.
(yysymprint_, yydestruct_): Use it instead of rolling our own.
* data/yacc.c (YYUSE): New macro.
(YYCOPY, YYSTACK_RELOCATE, YYBACKUP, YYLLOC_DEFAULT):
(YYDPRINTF, YY_SYMBOL_PRINT, YY_STACK_PRINT, YY_REDUCE_PRINT):
(yyerrorlab): Use /*CONSTCOND*/ to suppress lint warnings.
* data/m4sugar/m4sugar.m4 (_m4_map): New macro.
(m4_map, m4_map_sep): Use it. Handle the empty list correctly.
2005-10-04 Paul Eggert
Undo the parts of the unlocked-I/O change that substituted
putc or puts for printf. This might hurt performance a bit,
but some people prefer the printf style.
* data/c.m4 (yysymprint): Prefer printf to puts and putc.
* data/glr.c (YYFPUTC, YYFPUTS, YYDPUTS): Remove.
All uses replaced by YYFPRINTF and YYDPRINTF.
* data/yacc.c: Likewise.
* lib/bitset.c (bitset_print): Likewise.
* lib/bitsetv.c (bitsetv_dump, debug-bitsetv): Prefer printf to
putc and puts.
* lib/lbitset.c (debug_lbitset): Likewise.
* src/closure.c (print_firsts, print_fderives): Likewise.
* src/gram.c (grammar_dump): Likewise.
* src/lalr.c (look_ahead_tokens_print): Likewise.
* src/output.c (escaped_output): Likewise.
(user_actions_output): Break apart two printfs.
* src/parse-gram.y (%printer): Prefer printf to putc and puts.
* src/reduce.c (reduce_print): Likewise.
* src/state.c (state_rule_look_ahead_tokens_print): Likewise.
* src/system.h: Include unlocked-io.h rathe than stdio.h.
* data/glr.c (yyuserMerge, yyreportAmbiguity, yyreportSyntaxError):
Use assignments rather than casts-to-void to suppress
unused-variable warnings. This pacifies 'lint'.
* data/lalr1.cc (yysymprint_, yydestruct_): Use a call to suppress
unused-variable warnings.
2005-10-03 Juan Manuel Guerrero
* Makefile.am: DJGPP specific files added to EXTRA_DIST.
2005-10-02 Paul Eggert
Use unlocked I/O for a minor performance improvement on hosts like
GNU/Linux and Solaris that support unlocked I/O. The basic idea
is to use the gnlib unlocked-io module, and to prefer putc and
puts to printf when either will work (since the latter doesn't
come in an unlocked flavor).
* bootstrap (gnulib_modules): Add unlocked-io.
* data/c.m4 (yysymprint): Prefer puts and putc to printf.
* data/glr.c (YYFPUTC, YYFPUTS, YYDPUTS): New macros.
Prefer them to YYFPRINTF and YYDPRINTF if either will do,
and similarly for puts and putc and printf.
* data/yacc.c: Likewise.
* lib/bitset.c (bitset_print): Likewise.
* lib/bitset.h [USE_UNLOCKED_IO]: Include unlocked-io.h.
* lib/bitsetv.c (bitsetv_dump, debug-bitsetv): Prefer putc and puts
to printf.
* lib/lbitset.c (debug_lbitset): Likewise.
* src/closure.c (print_firsts, print_fderives): Likewise.
* src/gram.c (grammar_dump): Likewise.
* src/lalr.c (look_ahead_tokens_print): Likewise.
* src/output.c (escaped_output): Likewise.
(user_actions_output): Coalesce two printfs.
* src/parse-gram.y (%printer): Prefer putc and puts to printf.
* src/reduce.c (reduce_print): Likewise.
* src/state.c (state_rule_look_ahead_tokens_print): Likewise.
* src/system.h: Include unlocked-io.h rather than stdio.h.
* data/lalr1.cc: Don't put an unmatched ' in a dnl comment, as
this confuses xgettext.
2005-10-02 Akim Demaille
* bootstrap (gnulib_modules): Add strverscmp.
* lib/.cvsignore: Add strverscmp.c, strverscmp.h.
* m4/.cvsignore: Add strverscmp.m4.
* src/parse-gram.y (%require): New token, new rule.
(version_check): New.
* src/scan-gram.l (%require): Adjust.
* tests/input.at (AT_REQUIRE): New.
Use it.
* doc/bison.texinfo (Require Decl): New.
(Calc++ Parser): Use %require.
2005-10-02 Akim Demaille
* data/location.cc: New.
2005-10-02 Paul Eggert ,
Akim Demaille
Make sure -odir/foo.cc creates dir/location.hh etc.
* src/files.h (spec_outfile, parser_file_name, spec_name_prefix)
(spec_file_prefix, spec_verbose_file, spec_graph_file)
(spec_defines_file): Now const.
(dir_prefix): New.
(short_base_name): Remove.
* src/files.c: Adjust.
(dirname.h): Include.
(base_name): Don't prototype it.
(finput): Remove, duplicates gram_in.
(full_base_name, short_base_name): Replace by...
(all_but_ext, all_but_tab_ext): these.
(compute_base_names): Rename as...
(compute_file_name_parts): this.
Update to compute the new variables, including dir_prefix.
Adjust dependencies.
* src/output.c (prepare): Output them.
* src/reader.c: Adjust to use gram_in, not finput.
* src/scan-skel.l (@dir_prefix@): New.
2005-10-02 Juan Manuel Guerrero
* lib/subpipe.c: New function end_of_output_subpipe() added
to allow support for non-posix systems. This is a no-op function
for posix systems.
* lib/subpipe.h: New function end_of_output_subpipe() added
to allow support for non-posix systems. This is a no-op function
for posix systems.
* src/output.c (output_skeleton): Use end_of_output_subpipe() to
handle the lack of pipe/fork functionality on non-posix systems.
* djgpp/Makefile.maint: DJGPP specific file.
* djgpp/README.in: DJGPP specific file.
* djgpp/config.bat: DJGPP specific configuration file.
* djgpp/config.sed: DJGPP specific configuration file.
* djgpp/config.site: DJGPP specific configuration file.
* djgpp/config_h.sed: DJGPP specific configuration file.
* djgpp/subpipe.c: DJGPP specific replacement file for lib/subpipe.c.
* djgpp/subpipe.h: DJGPP specific replacement file for lib/subpipe.h.
2005-10-02 Akim Demaille
* data/location.cc: New, extract from...
* data/lalr1.cc: here.
(location.hh): Include it after the user prologue, in case the
filename type is defined by the user.
Forward declation location and position before the pre-prologue.
(yyresult_): Rename as...
(yyresult): this, it's a local variable, not an attribute.
* data/Makefile.am (dist_pkgdata_DATA): Adjust.
2005-10-01 Akim Demaille
* examples/extexi: Restore the #line generation.
2005-09-30 Akim Demaille ,
Alexandre Duret-Lutz
Move the token type and YYSTYPE in the parser class.
* data/lalr1.cc (stack.hh, location.hh): Include earlier.
(parser::token): New, from the moved free definition of tokens.
(parser::semantic_value): Now a full definition instead of an
indirection to YYSTYPE.
(b4_post_prologue): No longer included in the header file, but
in the implementation file.
* doc/bison.texi (C+ Language Interface): Update.
* src/parse-gram.y: Support unary %define.
* tests/actions.at: Define global_tokens_and_yystype for backward
compatibility until we update the tests.
* tests/calc.at: Idem.
(first_line, first_column, last_line, last_column): Define for lalr1.cc
to simplify the code.
2005-09-29 Paul Eggert
Port to SunOS 4.1.4, which lacks strtoul and strerror.
Ah, the good old days! Problem reported by Peter Klein.
* bootstrap (gnulib_modules): Add strerror, strtoul.
* lib/.cvsignore: Add strerror.c, strtol.c, strtoul.c
* m4/.cvsignore: Add strerror.m4, strtol.m4, strtoul.m4.
2005-09-29 Akim Demaille
* data/c.m4 (b4_error_verbose_if): New.
* data/lalr1.cc: Use it.
(YYERROR_VERBOSE_IF): Remove.
(yyn_, yylen_, yystate_, yynerrs_, yyerrstatus_): Remove as
parser members, replaced by...
(yyn, yylen, yystate, yynerss, yyerrstatus): these parser::parse
local variables.
(yysyntax_error_): Takes the state number as argument.
(yyreduce_print_): Use the argument yyrule, not the former
attribute yyn_.
2005-09-26 Paul Eggert
* bootstrap (gnulib_modules): Add verify.
* lib/.cvsignore: Add verify.h.
* src/getargs.c: Use ARGMATCH_VERIFY rather than verify.
* src/system.h (verify): Remove.
Include verify.h instead.
* src/tables.c (tables_generate): Use new API for 'verify'.
2005-09-21 Paul Eggert
* tests/local.at (_AT_BISON_OPTION_PUSHDEFS): Do not use
local variables whose names begin with 'yy'.
* tests/calc.at (_AT_DATA_CALC_Y): Likewise.
Trivial changes from Joel E. Denny.
* bootstrap (gnulib_modules): Remove alloca. Bison doesn't need
it itself.
* src/main.c (main) [C_ALLOCA]: Don't flush alloca'ed memory; we
don't use alloca any more.
* data/yacc.c [YYSTACK_USE_ALLOCA && !defined __GNUC__ && ! defined
__BUILTIN_VA_ARG_INCR && ! defined _AIX && ! defined _MSC_VER &&
defined _ALLOCA_H]: Don't include ; not needed in this case.
* tests/torture.at (Exploding the Stack Size with Alloca): Adjust
to match yacc.c, to test more hosts.
2005-09-20 Paul Eggert
* data/yacc.c (YYSIZE_T): Reindent to make it clearer. This
doesn't affect behavior.
(YYSTACK_ALLOC) [YYSTACK_USE_ALLOCA]: Improve support for
Solaris, AIX, MSC.
(_STDLIB_H): Renamed from YYINCLUDED_STDLIB_H. All uses changed.
This works a bit better with glibc, if user code has already included
stdlib.h.
* doc/bison.texinfo (Bison Parser): Document that users can't
arbitrarily use malloc and free for other purposes. Document
that and might be included.
(Table of Symbols): Under YYSTACK_USE_ALLOCA, Don't claim that the
user must declare alloca.
* HACKING (release): Forwarn the Translation Project about
stable releses.
2005-09-20 Akim Demaille
* data/glr.c: Use b4_token_enums, not b4_token_enums_defines.
2005-09-19 Paul Eggert
* data/yacc.c (YYSIZE_MAXIMUM): New macro.
(YYSTACK_ALLOC_MAXIMUM): Use it.
(yysyntax_error): New function.
(yyparse) [YYERROR_VERBOSE]: Don't leak memory indefinitely if
multiple syntax errors are reported, and alloca is being used.
Instead, reallocate buffers twice as big each time, so that
we waste at most half the allocated memory. Start with a small
(128-byte) buffer that will suffice in most cases anyway.
Use yysyntax_error to do most of the work.
* doc/bison.texinfo (Error Reporting, Table of Symbols):
yynerrs is the number of errors reported, not the number of
errors encountered.
* tests/glr-regression.at (Duplicated user destructor for lookahead):
Mark it as expected to fail.
Cast result of malloc; problem reported by twlevo@xs4all.nl.
* tests/actions.at, tests/calc.at, tests/glr-regression.at:
Don't start user-code symbols with "yy", to avoid name space problems.
2005-09-19 Akim Demaille
Remove the traits, failed experiment.
It never proved useful, and anyway because of the current
definition, it was not possible to have several specialization of
this traits, making it useless.
* data/lalr1.cc (yy:traits): Remove.
Inline its definitions in the parser class.
2005-09-19 Akim Demaille
* tests/atlocal.in (LIBS): Pass INTLLIBS to address failures on at
least Mac OSX with a /usr/local install of gettext.
2005-09-19 Akim Demaille
* data/lalr1.cc (yyparse): Rename yylooka and yyilooka as yychar
and yytoken for similarity with the other skeletons.
2005-09-19 Akim Demaille
* NEWS, configure.ac: Bump to 2.1a.
2005-09-16 Paul Eggert
* NEWS: Version 2.1.
* NEWS: Remove notice of yytname change, since it was never in an
official release.
* data/glr.c (yydestroyGLRState): Rename local var to avoid shadowing
diagnostic.
* src/output.c (prepare): Likewise.
* data/lalr1.cc (YYERROR_VERBOSE_IF): New macro.
(yysyntax_error_): Use it to avoid GCC warning when YYERROR_VERBOSE
is not defined. This is an awful hack, but it's enough for now.
All callers changed.
* tests/glr-regression-at (make_value): Args are const pointers now,
to avoid GCC warning.
(Duplicated user destructor for lookahead): New test. Currently
skipped. It fails on my host but I'm not sure it'll always fail.
2005-09-16 Akim Demaille
* src/symtab.h (struct symbol): Declare the printer and destructor
as const, to avoid accidental calls to free.
(symbol_destructor_set, symbol_printer_set): Adjust.
* src/symtab.c: Adjust.
2005-09-16 Akim Demaille
* data/c.m4 (b4_token_enums): New.
(b4_token_defines): Rename as...
(b4_token_enums_defines): this.
(b4_token_defines): New, output only the #defines.
* data/yacc.c, data/glr.c: Adjust.
* data/lalr1.cc: Use b4_token_enums instead of b4_token_enums_defines.
* data/c.m4 (b4_yydestruct_generate, b4_yysymprint_generate): Define
as default values.
2005-09-16 Akim Demaille
* data/lalr1.cc (yylex_): Remove, inline its code.
(yyreport_syntax_error_): Remove, replaced by...
(yysyntax_error_): this which returns a string and leaves to the
caller the call to the users' error function.
(yylooka_, yyilooka_, yylval, yylloc, yyerror_range_, yyval, yyloc):
Move from members of the parser object...
(yylooka, yyilooka, yylval, yylloc, yyerror_range, yyval, yyloc):
to local variables of the parse function.
2005-09-16 Akim Demaille
* doc/bison.texinfo (Calc++ Parser): Don't promote defining YYEOF
since it's in Bison's name space.
2005-09-15 Paul Eggert
* data/glr.c (yyresolveValue): Add default case to pacify
gcc -Wswitch-default. Problem reported by twlevo@xs4all.nl.
* NEWS: Document when yyparse started to return 2.
* doc/bison.texinfo (Parser Function): Document when yyparse
returns 2.
* data/lalr1.cc: Revert part of previous change, as it's incompatible.
(b4_filename_type): Renamed back from b4_file_name_type. All uses
changed.
(class position): file_name -> filename (reverting). All uses changed.
2005-09-14 Paul Eggert
* examples/calc++/Makefile.am ($(calc_sources_generated)): Don't
do anything if $@ exists. This reverts part of the 2005-07-07
patch.
2005-09-11 Paul Eggert
* Makefile.am (EXTRA_DIST): Do not distribute REFERENCES; it
contains obsolete information and isn't worth distributing as a
separate file anyway.
* data/glr.c [defined YYSETJMP]: Don't include .
(YYJMP_BUF, YYSETJMP, YYLONGJMP) [!defined YYSETJMP]: New macros.
All uses of jmp_buf, setjmp, longjmp changed to use these instead.
(yyparse): Abort if user code uses longjmp to throw an unexpected
value.
2005-09-09 Paul Eggert
* data/c.m4 (b4_identification): Define YYBISON_VERSION.
Suggested by twlevo@xs4all.nl.
* data/glr.c (YYCHK1): Do not assume YYE is in range.
This avoids a diagnostic from gcc -Wswitch-enum.
Problem reported by twlevo@xs4all.nl.
* doc/bison.texinfo: Don't use "filename", as per GNU coding
standards. Use "file name" or "file" or "name", depending on
the context.
(Invocation): The output of "bison hack/foo.y" goes to foo.tab.c,
not to hack/foo.tab.c.
(Calc++ Top Level): 2nd arg of main is not const.
* data/glr.c: b4_filename -> b4_file_name.
* data/lalr1.cc: Likewise. Also, b4_filename_type -> b4_file_name_type.
All uses changed.
(class position): filename -> file_name. All uses changed.
* data/yacc.c: b4_filename -> b4_file_name.
* lib/bitset.h: filename -> file_name in local vars.
* lib/bitset_stats.c: Likewise.
* src/files.c: Likewise.
* src/scan-skel.l ("@output ".*\n): Likewise.
* src/files.c (file_name_split): Renamed from filename_split.
* src/muscle_tab.c (muscle_init): Output b4_file_name, not b4_filename.
2005-09-08 Paul Eggert
* lib/.cvsignore: Add pipe-safer.c, stdio--.h, unistd--.h,
to accommodate latest gnulib.
* tests/glr-regression.at (Duplicate representation of merged trees):
Add casts to pacify g++. Problem reported by twlevo@xs4all.nl.
* bootstrap: Add comment as to why the AM_LANGINFO_CODESET hack is
needed.
2005-08-26 Paul Eggert
* data/glr.c (yydestroyGLRState): Renamed from yydestroyStackItem.
All uses changed. Invoke user destructor after an error during a
split parse (trivial change from Joel E. Denny).
* tests/glr-regression.at
(User destructor after an error during a split parse): New test case.
Problem reported by Joel E. Denny in:
http://lists.gnu.org/archive/html/bison-patches/2005-08/msg00029.html
2005-08-25 Paul Eggert
* README-cvs: Give URLs for recommended tools.
Mention Gzip version problem, and bootstrapping issues.
Remove troubleshooting section, as it's somewhat obsolete.
* bootstrap (no_cache): New var, to accommodate different wget
variants. Use it instead of '-C off'. Problem reported by
twlevo@xs4all.nl.
* data/glr.c (yydestroyStackItem): New function.
(yyrecoverSyntaxError, yyreturn): Use it to improve quality of
debugging information. Problem reported by Joel E. Denny.
2005-08-25 Akim Demaille
* tests/local.at (AT_COMPILE_CXX): Pass $LINKS too.
2005-08-24 Paul Eggert
* data/glr.c (yyrecoverSyntaxError, yyreturn):
Don't invoke destructor on unresolved entries.
* tests/glr-regression.at
(User destructor for unresolved GLR semantic value): New test case.
Problem reported by Joel E. Denny in:
http://lists.gnu.org/archive/html/bison-patches/2005-08/msg00016.html
2005-08-21 Paul Eggert
* lib/.cvsignore: Remove realloc.c, strncasecmp.c, xstrdup.c.
Add strnlen.c.
* m4/.cvsignore: Remove codeset.m4, gettext.m4, lib-ld.m4,
lib-prefix.m4, po.m4.
* data/glr.c (yyreturn): Use "Cleanup:" rather than "Error:"
in yydestruct diagnostic, since it might not be an error.
Problem reported by Joel Denny near end of
.
* data/lalr1.cc (yyerturn): Likewise.
* data/yacc.c (yyreturn): Likewise.
* tests/calc.at (_AT_CHECK_CALC_ERROR): Adjust to the above change.
* src/files.c: Remove obsolete FIXME comment.
* data/glr.c (YY_SYMBOL_PRINT): Append a newline, for consistency
with the other templates, and to fix bogus run-on messages such
as the one reported at the end of
.
All callers changed to avoid the newline.
(yyprocessOneStack): Output two lines rather than one, to accommodate
the above change. This changes the debug output format slightly.
* data/glr.c (yyresolveValue): Fix redundant parse tree problem
reported by Joel E. Denny in
(trivial change).
* tests/glr-regression.at (Duplicate representation of merged trees):
New test, from Joel E. Denny in:
.
* THANKS: Add Joel E. Denny.
* configure.ac (AC_INIT): Bump to 2.0c.
2005-07-24 Paul Eggert
* NEWS: Version 2.0b.
* Makefile.am (SUBDIRS): Put examples before tests, so that
"make check" doesn't finish with "All 1 tests passed".
* tests/regression.at (Token definitions): Don't rely on
AT_PARSER_CHECK for data that contains backslashes. It currently
uses 'echo', and 'echo' isn't portable if its argument contains
backslashes. Problem found on OpenBSD 3.4. Also, do not assume
that the byte '\0xff' is not printable in the C locale; it is,
under OpenBSD 3.4 (!). Luckily, '\0x80' through '\0x9e' are
not printable, so use '\0x81' to test.
* data/glr.c (YYOPTIONAL_LOC): Define even if it's not a recent
version of GCC, since the macro is used with non-GCC compilers.
Fix core dump reported by Pablo De Napoli in
.
* tests/regression.at (Invalid inputs with {}): New test.
* src/parse-gram.y (token_name): Translate type before using
it as an index.
* data/glr.c (ATTRIBUTE_UNUSED): Remove, since it infringes on
the user's name space. All uses changed to __attribute__
((__unused__)).
(yyFail, yyMemoryExhausted, yyreportAmbiguity):
Add __attribute__ ((__noreturn__)).
* etc/clcommit: Remove. We weren't using it, and it failed
"make maintainer-distcheck".
* Makefile.maint: Merge from coreutils.
(CVS_LIST, CVS_LIST_EXCEPT): New macros.
(syntax-check-rules): Change list of rules as described below.
(sc_cast_of_alloca_return_value, sc_dd_max_sym_length):
(sc_file_system, sc_obsolete_symbols, sc_prohibit_atoi_atof):
(sc_prohibit_jm_in_m4, sc_root_tests, sc_tight_scope):
(sc_trailing_space): New rules.
(sc_xalloc_h_in_src): Remove.
(sc_cast_of_argument_to_free, sc_cast_of_x_alloc_return_value):
(sc_space_tab, sc_error_exit_success, sc_changelog):
(sc_system_h_headers, sc_sun_os_names, sc_unmarked_diagnostics):
(makefile-check, po-check, author_mark_check):
(makefile_path_separator_check, copyright-check):
Use grep -n, to make it easier to find violations.
Use CVS_LIST and CVS_LIST_EXCEPT.
(header_regexp, h_re): Remove.
(dd_c): New macro.
(sc_dd_max_sym_length, .re-list, news-date-check): New rules.
(my-distcheck): Use more-modern GCC flags.
(signatures, %.asc): Remove.
(rel-files, announcement): Remove signatures.
Restore old updating code, even though we don't use it, so
that we're the same as coreutils.
(alpha, beta, major): Depend on news-date-check.
Make the upload commands.
* data/c.m4, data/lalr1.cc, data/yacc.c: Normalize white space.
* lib/abitset.h, lib/bbitset.h, lib/bitset.h: Likewise.
* lib/bitset_stats.c, lib/ebitset.h, lib/lbitset.c: Likewise.
* lib/libitset.h, lib/timevar.c, lib/vbitset.h: Likewise.
* src/Makefile.am, src/gram.c, src/muscle_tab.h: Likewise.
* src/parse-gram.y, src/system.h, src/tables.c, src/vcg.c: Likewise.
* src/vcg_defaults.h, tests/cxx-type.at, tests/existing.at: Likewise.
* tests/sets.at: Likewise.
* data/m4sugar/m4sugar.m4: Sync from Autoconf, except that
we comment out the Autoconf version number.
* doc/bison.texinfo (Calc++ Scanner): Don't use atoi, as
it's error-prone and "make maintainer-distcheck" rejects it.
* lib/subpipe.c: Include without checking for HAVE_FCNTL_H.
Indent calls to "error" to pacify "make maintainer-distcheck",
when the calls are not intended to be translated.
* m4/subpipe.m4 (BISON_PREREQ_SUBPIPE): Don't check for fcntl.h.
* src/Makefile.am (DEFS): Use +=, to pacify
"make maintainer-distcheck".
(bison_SOURCES): Add scan-skel.h.
(sc_tight_scope): New rule, from coreutils.
* src/files.c (src_extension, header_extension):
Now static, not extern.
* src/getargs.c (short_options): Likewise.
* src/muscle_tab.c (muscle_table): Likewise.
* src/parse-gram.y (current_class, current_type, current_prec):
Likewise.
* src/reader.c (grammar_end, previous_rule_end): Likewise.
* src/getargs.h: Redo comments to pacify "make maintainer-distcheck".
* src/main.c (main): Cast bindtextdomain and textdomain calls to
void, to avoid warning when NLS is disabled.
* src/output.c: Include scan-skel.h.
(scan_skel): Remove decl, since scan-skel.h does this.
(output_skeleton):
Indent calls to "error" to pacify "make maintainer-distcheck".
* src/print_graph.c: Don't include , as system.h does this.
* src/reader.h (gram_end, gram_lineno): New decls to pacify
"make maintainer-distcheck".
* src/scan-skel.l (skel_lex, skel_get_lineno, skel_get_in):
(skel_get_out, skel_get_leng, skel_get_text, skel_set_lineno):
(skel_set_in, skel_set_out, skel_get_debug, skel_set_debug):
(skel_lex_destroy, scan_skel): Move these decls to...
* src/scan-skel.h: New file.
* src/uniqstr.c (uniqstr_assert):
Indent calls to "error" to pacify "make maintainer-distcheck".
* tests/Makefile.am ($(srcdir)/package.m4): Use $(VAR),
not @VAR@.
* tests/torture.at: Revamp to avoid misuse of atoi that
"make maintainer-distcheck" complained about.
* examples/extexi (message): Don't print a message more than once,
and omit line-number decoration that makes Emacs compile think
that informative messages are worth worrying about.
2005-07-22 Paul Eggert
* configure.ac: Update version number.
* Makefile.am (SUBDIRS): Add examples; somehow this got removed
accidentally.
* examples/calc++/calc++-parser.yy: Remove from CVS, as it's
autogenerated by the maintainer.
* examples/calc++/.cvsignore: Add *.yy.
* lib/bitset.c (bitset_alloc): Don't cast xcalloc result.
* lib/bitset_stats.c (bitset_stats_init): Likewise.
* lib/bitsetv.c (bitsetv_alloc): Likewise.
* po/POTFILES.in: Add lib/xalloc-die.c; remove lib/xmalloc.c.
* src/relation.c (relation_transpose): Rewrite to avoid bogus complaint
from maintainer-distcheck about casting the argument of 'free'.
* NEWS: Mention recent yytname changes.
* THANKS: Add Anthony Heading, twlevo@xs4all.nl.
* bootstrap: For translations that have not yet been upgraded to
the new runtime-po domain, prime the pump by extracting the
relevant strings from the obsolete translations. This code can be
removed once the bison-runtime domain has been translated by each
team.
* src/scan-gram.l (.): Don't double-quote token names,
now that token names are already quoted.
Fix problem reported by Anthony Heading.
* data/glr.c (YYTOKEN_TABLE): New macro.
(yytname): Define if YYTOKEN_TABLE.
* data/yacc.c (YYTOKEN_TABLE, yytname): Likewise.
* data/lalr1.cc (YYTOKEN_TABLE, yytname_): Likewise.
(YYERROR_VERBOSE): Define the same way the other skeletons do.
* src/output.c (prepare_symbols): Output token_table_flag.
2005-07-21 Paul Eggert
* data/glr.c (yyinitGLRStack, yyreturn): Don't call malloc
again if the first call fails.
* data/glr.c (yytnamerr): New function.
(yyreportSyntaxError): Use it to dequote most string literals.
* data/lalr1.c (yytname_): Renamed from yyname_, for compatibility
with other skeletons. All uses changed.
(yytnameerr_): New function.
(yyreport_syntax_error): Use it to dequote most string literals.
* data/yacc.c (yytnamerr): New function.
(yyerrlab): Use it to decode most string literals.
* doc/bison.texinfo (Decl Summary, Calling Convention):
Clarify quoting convention of yytname.
* src/output.c (prepare_symbols): Quote all names. This undoes
the 2005-04-17 change, which is now accomplished (mostly) via
changes in the parsers as described above.
* tests/regression.at (Token definitions, Web2c Actions):
Undo most 2005-04-17 change here, too.
2005-07-20 Paul Eggert
Fix more problems reported by twlevo@xs4all.nl.
* tests/cxx-type.at: Don't pipe output of ./types through sed to
remove trailing spaces. This loses the exit status of ./types,
and isn't needed since ./types shouldn't be emitting trailing
spaces.
* data/glr.c (yyreturn): Don't pop stack if yyinitStateSet failed,
as the stack isn't valid in that case.
* src/scan-gram.l (gram_get_lineno, gram_get_in, gram_get_out):
(gram_get_leng, gram_get_text, gram_set_lineno, gram_set_in):
(gram_set_out, gram_get_debug, gram_set_debug, gram_lex_destroy):
Add declarations to pacify "gcc -Wmissing-prototypes" when flex 2.5.31
is used.
* src/scan-skel.l (skel_get_lineno, skel_get_in, skel_get_out):
(skel_get_leng, skel_get_text, skel_set_lineno, skel_set_in):
(skel_set_out, skel_get_debug, skel_set_debug, skel_lex_destroy):
Likewise.
* tests/cxx-type.at (_AT_TEST_GLR_CXXTYPES): Work even with
overly-picky compilers that reject 'char *foo = "bar";'.
* src/symtab.c (SYMBOL_ATTR_PRINT, symbol_print): Direct output
to FILE * parameter, not to stderr. This fixes a typo introduced
in the 2005-07-12 change.
* lib/subpipe.c (create_subpipe): Rewrite slightly to avoid
warnings from GCC 4.
* data/glr.c (yyexpandGLRStack, yyaddDeferredAction, yyexpandGLRStack):
(yyglrShiftDefer, yysplitStack):
Remove unused parameters b4_pure_formals. All uses changed.
(yyglrShift): Remove unused parameters b4_user_formals.
All uses changed.
(yyglrReduce): Removed unused parameter yylocp. All uses changed.
2005-07-18 Paul Eggert
Destructor cleanups and regularization among the three skeletons.
* NEWS: Document the behavior changes.
* data/glr.c (yyrecoverSyntaxError): Don't bother to pop the
stack before failing, as the cleanup code will do it for us now.
* data/lalr1.cc (yyerrlab): Likewise.
* data/glr.c (yyparse): Pop everything off the stack before
freeing it, so that destructors get called properly.
* data/lalr1.cc (yyreturn): Likewise.
* data/yacc.c (yyreturn): Pop and destroy the start symbol, too.
This is more consistent.
* doc/bison.texinfo (Destructor Decl): Mention more reasons
why destructors might be called. 1.875 -> 2.1.
(Destructor Decl, Decl Summary, Table of Symbols):
Some English-language cleanups for %destructor.
* tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR):
Add output line for destructor of start symbol.
* tests/calc.at (AT_CHECK_CALC): Add one to line counts,
because of that same extra output line.
* NEWS: Document minor wording changes in diagnostics of
Bison-generated parsers.
* data/glr.c (yyMemoryExhausted): Renamed from yyStackOverflow.
Remove unused formals. All uses changed.
(yyreportAmbiguity): "ambiguity detected" -> "syntax is ambiguous".
(yyparse): Rename yyoverflowlab to yyexhaustedlab.
* data/yacc.c (yyparse): "parser stack overflow" -> "memory exhausted".
Rename yyoverflowab to yyexhaustedlab.
When memory exhaustion occurs during syntax-error reporting,
report it separately rather than in a single diagnostic; this
eases translation.
* doc/bison.texinfo (Memory Management): Renamed from Stack Overflow.
(Memory Exhausted): Renamed from Parser Stack Overflow.
Revamp wording slightly to prefer "memory exhaustion".
* tests/actions.at: "parser stack overflow" -> "memory exhausted".
* data/c.m4 (b4_yysymprint_generate): Use YYFPRINTF, not fprintf.
Add i18n support to the GLR skeleton. Partially fix the C++
skeleton; a C++ expert needs to finish this. Remove debugging
msgids; there's little point to having them translated, since they
can be understood only by someone who can read the
(English-language) source code.
Generate runtime-po/bison-runtime.pot automatically, so that we
don't have to worry about garbage getting in that file. We'll
make sure after the next official release that old msgids don't
get lost. See
.
* runtime-po/Makefile.in.in, runtime-po/bison-runtime.pot: Remove.
Now auto-generated.
* PACKAGING: Don't claim that Gawk, GCC, Perl use this method yet.
Fix typos in explanations of the runtime file.
* bootstrap: Change gettext keyword from YYI18N to YY_.
Use standard Makefile.in.in in runtime-po, since we'll arrange
for backward-compatible bison-runtime.po files in a different way.
* data/glr.c (YY_): New macro, from yacc.c.
(yyuserAction, yyreportAmbiguity, yyreportSyntaxError, yyparse):
Translate messages intended for users.
(yyreportSyntaxError): Change "virtual memory" to "memory" to match
the wording in the other skeletons. We don't know that the memory
is virtual.
* data/lalr1.cc (YY_): Renamed from _. All uses changed.
Use same method that yacc.c uses.
Don't translate debugging messages.
(yy::yyreport_syntax_error): Put in a FIXME for the i18n stuff;
it doesn't work (yet), and requires C++ expertise to fix.
* data/yacc.c (YY_): Renamed from YY18N. All uses changed.
Move defn to a more logical place, to be consistent with other
skeletons.
Don't translate debugging messages.
Don't assume line numbers fit in unsigned int; use unsigned long fmts.
* doc/bison.texinfo: Mention . Change glibc cross reference
to gettext cross reference. Add indexing terms. Mention YYENABLE_NLS.
* runtime-po/POTFILES.in: Add data/glr.c, data/lalr1.cc.
Fix yyerror / yylex test glitches noted by twlevo@xs4all.nl.
* tests/cxx-type.at (_AT_TEST_GLR_CXXTYPES): Have yyerror return
void, not int.
* tests/glr-regression.at (Badly Collapsed GLR States):
Likewise.
(Improper handling of embedded actions and dollar(-N) in GLR parsers):
yylex should return 0 at EOF rather than aborting.
Improve tests for stack overflow in GLR parser.
Problem reported by twlevo@xs4all.nl.
* data/glr.c (struct yyGLRStack): Remove yyerrflag member.
All uses removed.
(yyStackOverflow): Just longjmp, but with value 2 so that caller
can handle the problem.
(YYCHK1): Use goto (a la yacc.c) rather than setting a flag.
(yyparse): New local variable yyresult to record the result.
Use result of setjmp to set it, rather than storing itinto
struct.
(yyDone): Remove label.
(yyacceptlab, yyabortlab, yyoverflowlab, yyreturn): New labels,
to mimic yacc.c. Do not discard lookahead if it's EOF (possible
if YYABORT is used).
* tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Exit with
yyparse status; put status > 1 into diagnostic.
Check that status==2 works.
* tests/calc.at, tests/cxx-type.at, tests/glr-regression.at:
Use exit status 3 for failure to open (which shouldn't happen).
2005-07-17 Paul Eggert
* tests/conflicts.at (%nonassoc and eof): Don't exit with status
1 on syntax error; just let yyparse do its thing.
* tests/glr-regression.at (Badly Collapsed GLR States): Likewise.
* tests/torture.at (AT_DATA_STACK_TORTURE): Likewise.
(Exploding the Stack Size with Alloca):
(Exploding the Stack Size with Malloc):
Expect exit status 2, not 1, since the parser is supposed to blow
its stack. Problem reported by twlevo@xs4all.nl.
* data/glr.c (yyparse): Don't assume that the initial calls
to YYMALLOC succeed; in that case, yyparse incorrectly returned 0.
Print a stack-overflow message and fail instead.
Initialize the line-number information before creating the stack,
so that the stack-overflow message can report line zero safely.
2005-07-14 Paul Eggert
Fix problems reported by twlevo@xs4all.nl.
* data/glr.c (YYSTACKEXPANDABLE): Don't define if already defined.
(yyuserMerge): Provide a default case if b4_mergers is empty.
* tests/cxx-type.at (_AT_TEST_GLR_CXXTYPES): Define YYSTACKEXPANDABLE.
* tests/glr-regression.at
(Improper handling of embedded actions and dollar(-N) in GLR parsers):
Add casts to pacify C++ compilers.
* tests/glr-regression.at (Improper merging of GLR delayed action
sets): Declare yylex before using it.
* tests/Makefile.am (maintainer-check-g++): Fix a stray
$(GXX) that escaped the renaming of GXX to CXX. Remove bogus
test for valgrind; valgrind is independent of g++.
(maintainer-check-posix): Add _POSIX2_VERSION=200112, to check
for compatibility with POSIX 1003.1-2001 (if running coreutils).
* tests/cxx-type.at (_AT_TEST_GLR_CXXTYPES): Port to stricter C++.
Use a destructor, so that we can expand the stack. Change
YYSTYPE to char * so that we can free it. Cast result of malloc.
2005-07-13 Paul Hilfinger
* data/glr.c (yyuserAction): Fix uninitialized variable that caused
a valgrind failure. Problem reported by twlevo@xs4all.nl.
2005-07-13 Paul Eggert
* PACKAGING: New file, suggested by Bruno Haible and taken from
similar wording in gettext's PACKAGING file.
* NEWS: Mention PACKAGING.
* Makefile.am (EXTRA_DIST): Add PACKAGING.
2005-07-12 Paul Eggert
* NEWS: Document recent i18n improvements.
* bootstrap: Get runtime translations into runtime-po.
Create runtime-po files automatically, if possible.
* configure.ac: Invoke BISON_I18N, so that we eat our own dog food.
* data/yacc.c: Rewrite inclusion of so that ENABLE_NLS
does not infringe on the user's name space.
(YYENABLE_NLS): Renamed from ENABLE_BISON_NLS.
* doc/bison.texinfo (Internationalization): Revamp the English
and Texinfo syntax a bit, to try to make it clearer.
(Bison Options, Option Cross Key): Mention --print-localedir.
* m4/bison-i18n.m4 (BISON_I18N): Rename ENABLE_BISON_NLS to
YYENABLE_NLS. Quote a bit more.
* runtime-po/.cvsignore: New file.
* runtime-po/Makefile.in.in (mostlyclean): Remove *.old.pot.
* runtime-po/Rules-quot: Remove; now created by bootstrap.
* runtime-po/quot.sed: Likewise.
* runtime-po/boldquot.sed: Likewise.
* runtime-po/en@quot.header: Likewise.
* runtime-po/en@boldquot.header: Likewise.
* runtime-po/insert-header.sin: Likewise.
* runtime-po/remove-potcdate.sin: Likewise.
* runtime-po/Makevars: Likewise.
* runtime-po/LINGUAS: Likewise.
* runtime-po/de.po: Likewise; we will rely on the translation project
to maintain this, so "bootstrap" should get it.
* src/getarg.c (PRINT_LOCALEDIR_OPTION): Let the C compiler determine
its value.
* src/main.c (main): Bind the bison-runtime domain, too.
2005-07-12 Bruno Haible
* data/yacc.c: Include when NLS is enabled.
(YYI18N): Renamed from _. Use dgettext when NLS is enabled.
* po/POTFILES.in: Remove autogenerated file src/parse-gram.c.
* runtime-po: New directory.
* runtime-po/Makefile.in.in: New file, copied from po/, with modified
$(DOMAIN).pot-update rule, so that old messages are never dropped.
* runtime-po/Rules-quot: New file, copied from po/.
* runtime-po/quot.sed: Likewise.
* runtime-po/boldquot.sed: Likewise.
* runtime-po/en@quot.header: Likewise.
* runtime-po/en@boldquot.header: Likewise.
* runtime-po/insert-header.sin: Likewise.
* runtime-po/remove-potcdate.sin: Likewise.
* runtime-po/Makevars: New file.
* runtime-po/POTFILES.in: New file.
* runtime-po/LINGUAS: New file.
* runtime-po/bison-runtime.pot: New file.
* runtime-po/de.po: New file.
* m4/bison.m4: New file.
* Makefile.am (SUBDIRS): Add runtime-po.
(aclocaldir, aclocal_DATA): New variables.
* configure.ac: Add AC_CONFIG_FILES of runtime-po/Makefile.in.
Define aclocaldir.
* src/getargs.c (usage): Document --print-localedir option.
(PRINT_LOCALEDIR_OPTION): New enum item.
(long_options): Add --print-localedir option.
(getargs): Handle --print-localedir option.
* doc/bison.texinfo (Bison Parser): Remove paragraph about _().
(Internationalization): New section.
2005-07-12 Akim Demaille
* src/symtab.h, src/symtab.c (symbol_print): Swap the arguments,
for consistency with the rest of the code.
* src/symlist.h, src/symlist.c (symbol_list_print): Ditto.
Add separators.
2005-07-12 Akim Demaille
* src/parse-gram.y: Use %printer instead of YYPRINT.
2005-07-12 Akim Demaille
* src/symtab.h, src/symtab.c (symbol_print): New.
* src/symlist.h, src/symlist.c (symbol_list_print): New.
* src/symlist.c (symbol_list_n_type_name_get): Report the culprit.
2005-07-12 Akim Demaille
* data/glr.c (b4_syncline): Fix (swap) the definitions of
b4_at_dollar and b4_dollar_dollar.
2005-07-11 Paul Eggert
* doc/bison.texinfo (Mystery Conflicts): Add reference to DeRemer
and Pennello's paper.
2005-07-09 Paul Eggert
* data/yacc.c (yyparse): Undo previous patch. Instead,
set yylsp[0] and yyvsp[0] only if the initial action
sets yylloc and yylval, respectively.
* data/yacc.c (yyparse): In the initial action, set
yylsp[0] and yyvsp[0] rather than yylloc and yylval.
This avoids the use of undefined variables if the initial
action does not set yylloc and/or yylval.
2005-07-07 Paul Eggert
* examples/calc++/calc++-driver.cc, examples/calc++/calc++-driver.hh:
* examples/calc++/calc++-scanner.ll, examples/calc++/calc++.cc:
Remove from CVS. These files are automatically generated.
* examples/extexi: Clarify that this file is now part of Bison,
not GNU M4, and that it works with any POSIX-compatible Awk.
* examples/calc++/Makefile.am (run_extexi): Remove; not used.
($(calc_extracted)): Renamed from $(calc_sources_extracted),
so that we also get calc++-parser.yy. Geneate it.
Use $(AWK), not gawk, since any conforming Awk will do.
Put comment before action, since older 'make' can't handle comment
in action.
$(BUILT_SOURCES): List all built sources, not just some of them.
$(MAINTAINERCLEANFILES): Remove *.stamp, and all built sources.
$($(srcdir)/calc++-parser.stamp): Work even if POSIXLY_CORRECT.
$($(calc_sources_generated)): Remove unnecessary test for existence
of target. (This had a shell syntax error anyway; a stray "x".)
(calc_extracted): List $(srcdir)/calc++-parser.yy, not
calc++-parser.yy.
* examples/.cvsignore, examples/calc++/.cvsignore: New files.
* bootstrap (gnulib_modules): Add gettext, now that it's no longer
implied by the other modules.
2005-07-06 Akim Demaille
Bind examples/calc++ to the package.
* examples/calc++/Makefile: Remove, replaced by...
* examples/calc++/Makefile.am: ... this new file.
* examples/calc++/test: Remove input.
* examples/calc++/compile: Remove.
* examples/Makefile.am: New.
* configure.ac, Makefile.am: Adjust.
* doc/Makefile.am (clean-local): New, for more recent texi2dvis.
2005-07-05 Paul Eggert
* data/glr.c (yyFail): Drastically simplify; since the format argument
never had any % directives, we can simply pass it to yyerror.
(yyparse): Use "t a; a=b;" rather than "t a = b;" when a will
be modified later, as that is the usual style in glr.c.
Problems reported by Paul Hilfinger.
Rewrite GLR parser to catch more buffer overrun, storage exhaustion,
and size overflow errors.
* data/glr.c: Include etc. after user prolog, not before,
in case the user prolog sets feature-test macros like _GNU_SOURCE.
(YYSIZEMAX): New macro.
(yystpcpy): New function, taken from yacc.c.
(struct yyGLRStack.yyspaceLeft): Now size_t, not int.
(yyinitGLRStack, yyfreeGLRstack): Remove unnecessary forward decls,
so that we don't have to maintain their signatures.
(yyFail): Check for buffer overflow, by using vsnprintf rather
than vsprintf. Allocate a bigger buffer if possible.
Report an error if buffer allocation fails.
(yyStackOverflow): New function.
(yyinitStateSet, yyinitGLRStack): Return a boolean indicating whether
the initialization was successful. It might fail if storage was
exhausted.
(yyexpandGLRStack): Add more checks for storage allocation failure.
Use yyStackOverflow to report failures.
(yymarkStackDeleted, yyglrShift, yyglrShiftDefer, yydoAction):
(yysplitStack, yyprocessOneStack, yyparse, yypstack):
Don't assume stack number fits in int.
(yysplitStack): Check for storage allocation failure.
(yysplitStack, yyprocessOneStack): Add pure_formals, so that we
can print diagnostics on storage allocation failure. All callers
changed.
(yyresolveValue): Use yybool for boolean.
(yyreportSyntaxError): Check for size-calculation overflow.
This code is taken from yacc.c.
(yyparse): Check for storage allocation errors when allocating
the initial stack.
2005-07-05 Akim Demaille
Extract calc++ from the documentation.
* doc/bison.texinfo (Calc++): Add the extraction marks.
* examples/extexi: New, from the aborted GNU Programming 2E.
Separate the different paragraph of a file with empty lines.
* examples/Makefile: Use it to extract the whole calc++ example.
2005-06-24 Akim Demaille
* doc/bison.texinfo (C++ Parser Interface): Use defcv to define
class typedefs.
2005-06-22 Akim Demaille
* doc/bison.texinfo (C++ Language Interface): First stab.
(C++ Parsers): Remove.
2005-06-22 Akim Demaille
* data/lalr1.cc (yylex_): Honor %lex-param.
2005-06-22 Akim Demaille
Start a set of simple examples.
* examples/calc++/Makefile, examples/calc++/calc++-driver.cc,
* examples/calc++/calc++-driver.hh,
* examples/calc++/calc++-parser.yy,
* examples/calc++/calc++-scanner.ll, examples/calc++/calc++.cc,
* examples/calc++/compile, examples/calc++/test: New.
2005-06-09 Paul Eggert
* data/yacc.c (malloc, free) [defined __cplusplus]: Wrap inside
extern "C" {}. This fixes a problem reported by Paul Hilfinger,
which stems from the 2005-05-27 patch.
2005-06-06 Paul Hilfinger
* data/glr.c: Modify treatment of unused parameters to permit use
of g++ (which doesn't allow __attribute__ ((unused)) for parameters).
2005-05-30 Paul Eggert
Fix infringement on user name space reported by Janos Zoltan Szabo.
* data/yacc.c (yyparse): strlen -> yystrlen.
2005-05-30 Akim Demaille
* data/lalr1.cc (_): New.
Translate the various messages.
2005-05-27 Paul Eggert
Fix infringement on user name space reported by Bruno Haible.
* data/yacc.c (YYSIZE_T): Define first, so that later decls can use it.
Prefer GCC's __SIZE_TYPE__ if available, so that we don't infringe on
the user's name space.
(alloca): Include to get it, if it's not built in.
(YYMALLOC, YYFREE): Define only if needed.
(malloc, free): Declare, but only if needed, as this infringes on
the user name space.
2005-05-25 Paul Eggert
Fix BeOS, FreeBSD, MacOS porting problems reported by Bruno Haible.
* lib/bitset.c (bitset_print): Don't assume size_t can be printed
with %d format.
* lib/ebitset.c (min, max): Undef before defining.
* lib/vbitset.c (min, max): Likewise.
* lib/subpipe.c (create_subpipe): Save local variables in case
vfork clobbers them.
2005-05-24 Bruno Haible
* tests/synclines.at (AT_SYNCLINES_COMPILE): Add support for the
error message syntax used by gcc-4.0.
2005-05-23 Paul Eggert
* README: Mention m4 1.4.3. Remove obsolete advice about
Sun Forte Developer 6 update 2, VMS, and MS-DOS.
* bootstrap: Remove workaround for problem I encountered with
gettext 0.14.1; it seems to be fixed now.
2005-05-22 Paul Eggert
* NEWS: Version 2.0a.
* src/files.c: Include "stdio-safer.h"; this fixes a typo in
the previous change.
Various maintainer cleanups.
* .cvsignore: Add a.exe, a.out, b.out,, conf[0-9]*, confdefs*,
conftest*, for benefit of CVS commands run at the same time as
"configure". Add build-aux, since "bootstrap" now creates it and
its subfiles.
* Makefile.cfg (move_if_change): Remove.
* Makefile.maint: Remove the update stuff; we now use "bootstrap".
(ftp-gnu, www-gnu, move_if_change, local_updates, update):
(po_repo, do-po-update, po-update, wget_files, get-targets):
(config.guess-url_prefix, config.sub-url_prefix):
(ansi2knr.c-url_prefix, texinfo.tex-url_prefix):
(standards.texi-url_prefix, make-stds.texi-url_prefix, taget, url):
($(get-targets), cvs-files, automake_repo, wget-update, cvs-update):
Remove.
* configure.ac (AC_CONFIG_AUX_DIR): Change from config to build-aux;
this is now the recommended name.
* config/.cvsignore: Remove config.guess, config.rpath, config.sub,
depcomp, install-sh, mdate-sh, missing, mkinstalldirs, texinfo.tex,
ylwrap. These files now go into build-aux.
* config/move-if-change: Remove.
* config/prev-version.txt: Bump from 1.75 to 2.0.
* bootstrap: Add stdio-safer, unistd-safer modules.
Remove m4/glibc2.m4 (introduced by latest gnulib, but
we don't need it).
* lib/.cvsignore: Add dup-safer.c, fd-safer.c,
fopen-safer.c, stdio-safer.h, unistd-safer.h.
* lib/subpipe.c: Include "unistd-safer.h".
(create_subpipe): Make sure all the newly-created
file descriptors are > 2, so that diagnostics don't
get sent down them (which might cause Bison to hang, in theory).
* m4/.cvsignore: Add stdio-safer.m4, unistd-safer.m4.
* src/files.c (xfopen): Use fopen_safer, not fopen.
* data/lalr1.cc (yy::]b4_parser_class_name[::parse): Port
yesterday's yacc.c fix.
2005-05-21 Paul Eggert
* data/glr.c, data/lalr1.cc: Update copyright date.
Fix a destructor bug reported by Wolfgang Spraul in
.
* data/yacc.c (yyabortlab): Don't call destructor, and
don't set yychar to EMPTY.
(yyoverflowlab): Don't call destructor.
(yyreturn): Call destructor, if yychar is neither YYEOF nor YYEMPTY.
* tests/calc.at (AT_CHECK_CALC): Expect one fewer output lines,
since we no longer output the message "discarding lookahead token
end of input ()".
2005-05-20 Paul Hilfinger
* data/glr.c (YY_SYMBOL_PRINT): Don't print newline at end to
fix a small glitch in debugging output.
(yyprocessOneStack, yyrecoverSyntaxError, yyparse): Print newline
after YY_SYMBOL_PRINT where needed.
(struct yyGLRState): Add some comments.
(struct yySemanticOption): Add some comments.
(union yyGLRStackItem): Add comment.
(yymergeOptionSets): Correct this to properly perform the union,
avoiding infinite reported by Michael Rosien.
Update comment.
* tests/glr-regression.at: Add test for GLR merging error reported
by M. Rosien.
2005-05-13 Paul Eggert
* COPYING, ChangeLog, GNUmakefile, HACKING, Makefile.am,
Makefile.cfg, Makefile.maint, NEWS, README, README-alpha,
README-cvs, TODO, bootstrap, configure.ac, data/Makefile.am,
data/README, data/c.m4, data/glr.c, data/lalr1.cc, data/yacc.c,
data/m4sugar/m4sugar.m4, doc/Makefile.am, doc/bison.texinfo,
doc/fdl.texi, doc/gpl.texi, doc/refcard.tex, lib/Makefile.am,
lib/abitset.c, lib/abitset.h, lib/bbitset.h, lib/bitset.c,
lib/bitset.h, lib/bitset_stats.c, lib/bitset_stats.h,
lib/bitsetv-print.c, lib/bitsetv-print.h, lib/bitsetv.c,
lib/bitsetv.h, lib/ebitset.c, lib/ebitset.h, lib/get-errno.c,
lib/get-errno.h, lib/lbitset.c, lib/lbitset.h, lib/libiberty.h,
lib/main.c, lib/subpipe.c, lib/subpipe.h, lib/timevar.c,
lib/timevar.def, lib/timevar.h, lib/vbitset.c, lib/vbitset.h,
lib/yyerror.c, m4/cxx.m4, m4/m4.m4, m4/subpipe.m4, m4/timevar.m4,
m4/warning.m4, src/LR0.c, src/LR0.h, src/Makefile.am, src/assoc.c,
src/assoc.h, src/closure.c, src/closure.h, src/complain.c,
src/complain.h, src/conflicts.c, src/conflicts.h, src/derives.c,
src/derives.h, src/files.c, src/files.h, src/getargs.c,
src/getargs.h, src/gram.c, src/gram.h, src/lalr.c, src/lalr.h,
src/location.c, src/location.h, src/main.c, src/muscle_tab.c,
src/muscle_tab.h, src/nullable.c, src/nullable.h, src/output.c,
src/output.h, src/parse-gram.c, src/parse-gram.h,
src/parse-gram.y, src/print.c, src/print.h, src/print_graph.c,
src/print_graph.h, src/reader.c, src/reader.h, src/reduce.c,
src/reduce.h, src/relation.c, src/relation.h, src/scan-gram.l,
src/scan-skel.l, src/state.c, src/state.h, src/symlist.c,
src/symlist.h, src/symtab.c, src/symtab.h, src/system.h,
src/tables.c, src/tables.h, src/uniqstr.c, src/uniqstr.h,
src/vcg.c, src/vcg.h, src/vcg_defaults.h, tests/Makefile.am,
tests/actions.at, tests/c++.at, tests/calc.at, tests/conflicts.at,
tests/cxx-type.at, tests/existing.at, tests/glr-regression.at,
tests/headers.at, tests/input.at, tests/local.at, tests/output.at,
tests/reduce.at, tests/regression.at, tests/sets.at,
tests/synclines.at, tests/testsuite.at, tests/torture.at:
Update FSF postal mail address.
2005-05-11 Paul Eggert
* tests/local.at (AT_COMPILE_CXX): Treat LDFLAGS like AT_COMPILE does.
Problem reported by Ralf Menzel.
2005-05-01 Paul Eggert
* tests/actions.at: Test that stack overflow invokes destructors.
From Marcus Holland-Moritz.
* data/yacc.c (yyerrlab): Move the code that destroys the stack
from here....
(yyreturn): to here. That way, destructors are called properly
even if the stack overflows, or the user calls YYACCEPT or
YYABORT. Stack-overflow problem reported by Marcus Holland-Moritz.
(yyoverflowlab): Destroy the lookahead.
2005-04-24 Paul Eggert
* data/yacc.c (YYSTACK_ALLOC_MAXIMUM): Add more-descriptive comment.
2005-04-17 Paul Eggert
* NEWS: Bison-generated C parsers no longer quote literal strings
associated with tokens.
* src/output.c (prepare_symbols): Don't escape strings,
since users don't want to see C escapes.
* tests/calc.at (AT_CHECK_CALC): Adjust to lack of quotes
in diagnostics.
* tests/input.at (Torturing the Scanner): Likewise.
* tests/regression.at (Token definitions, Web2c Actions): Likewise.
2005-04-16 Paul Eggert
* tests/torture.at (AT_INCREASE_DATA_SIZE): Skip the test if
the data size is known to be too small and we can't increase it.
This works around an HP-UX 11.00 glitch reported by Andrew Benham.
2005-04-15 Paul Eggert
* src/parse-gram.y: Include quotearg.h.
(string_as_id): Quote $1 before using it as a key, since the
lexer no longer quotes it for us.
(string_content): Don't strip quotes, since lexer no longer
quotes it for us.
* src/scan-gram.l: Include quotearg.h.
("\""): Omit quote.
("'"): Quote symbol before using it as
a key, since the rest of the lexer doesn't quote it.
* src/symtab.c (symbol_get): Don't quote symbol; caller does it now.
* tests/regression.at (Token definitions): Check for backslashes
in token strings.
* data/yacc.c (YYSTACK_ALLOC_MAXIMUM): New macro.
(YYSIZE_T): Define to unsigned long int when using an older compiler.
(yyparse): Revamp code to generate long syntax error message, to
make it easier to translate, and to avoid problems with arithmetic
overflow. Change "virtual memory" to "memory" in diagnostic, since
we don't know whether the memory is virtual.
2005-04-13 Paul Eggert
* NEWS: Bison-generated C parsers now use the _ macro to
translate strings.
* data/yacc.c (_) [!defined _]: New macro.
All English strings wrapped inside this macro.
* doc/bison.texinfo (Bison Parser): Document _.
* po/POTFILES.in: Include src/parse-gram.c, since it now
includes translateable strings that parse-gram.y doesn't.
2005-04-12 Paul Eggert
* src/symtab.c (symbol_make_alias): Call symbol_type_set,
reverting the 2004-10-11 change to this function.
(symbol_check_alias_consistency): Don't call symbol_type_set
if the type name is already correct.
* tests/input.at (Typed symbol aliases): New test, from Tim Van Holder.
2005-03-25 Paul Eggert
* tests/regression.at (Token definitions): Don't use a token named
c, as that generates a "#define c ..." that runs afoul of buggy
stdlib.h that uses the identifier c as a member of struct
drand48_data. Problem reported by Horst Wente.
2005-03-21 Paul Eggert
* bootstrap: Change translation URL from
http://www2.iro.umontreal.ca/~gnutra/po/maint/bison/ to
http://www.iro.umontreal.ca/translation/maint/bison/ to avoid
redirection glitches. Problem reported by twlevo@xs4all.nl.
2005-03-20 Paul Eggert
* tests/local.at (AT_COMPILE, AT_COMPILE_CXX): Don't put options
after operands; POSIX says this isn't portable for the c99 command.
2005-03-18 Paul Eggert
* tests/glr-regression.at (glr-regr2a.y): Try to dump core
immediately if a data overrun has occurred; this may help us track
down what may be a spurious failure on MacOS.
2005-03-17 Paul Eggert
Respond to problems reported by twlevo@xs4all.nl.
* bootstrap: Use "trap - 0" rather than the unportable "trap 0".
* src/vcg.h: Comment fix.
* src/vcg_defaults.h: Parenthesize macro bodies to make them safe.
(G_CMAX): Change to -1 instead of INT_MAX.
* data/yacc.c (yyparse): Omit spaces before #line.
2005-03-15 Paul Eggert
* src/tables.c (state_number_to_vector_number): Put it inside an
"#if 0", since it's not currently used. Problem reported by
Roland McGrath.
2005-03-06 Paul Eggert
* 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
.
* src/muscle_tab.c (muscle_code_grow): Don't quote numbers; it's
not needed.
* src/output.c (user_actions_output, token_definitions_output,
symbol_destructors_output, symbol_printers_output): Likewise.
* src/reader.c (prologue_augment): Likewise.
* src/scan-gram.l (handle_action_dollar, handle_action_at): Likewise.
* src/vcg.c (output_edge): Don't quote linestyle arg.
Problem reported by twlevo@xs4all.nl.
2005-02-28 Paul Eggert
* doc/bison.texinfo (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.
2005-02-24 Paul Eggert
* doc/bison.texinfo (Mfcalc Symtab): Correct the prototype for
putsym. Typo reported by Sebastian Piping.
2005-02-23 Paul Eggert
* doc/bison.texinfo (Language and Grammar): some -> same
(Epilogue): int he -> in the
Typos reported by Sebastian Piping via Justin Pence.
2005-02-07 Paul Eggert
* tests/glr-regression.at (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.
* tests/input.at (Invalid dollar-n): Renamed from "Invalid \$n",
for a similar reason.
2005-01-28 Paul Eggert
* src/vcg.c (output_graph): G_VIEW -> normal_view in case someone
wants to redefine G_VIEW.
2005-01-27 Paul Eggert
* src/vcg.c (get_view_str): Remove case for normal_view.
Problem reported by twlevo@xs4all.nl.
2005-01-24 Paul Eggert
* configure.ac (O0CFLAGS, O0CXXFLAGS): Fix quoting bug.
Problem reported by twlevo@xs4all.nl.
* doc/bison.texinfo: Change @dircategory from "GNU programming
tools" to "Software development". Requested by Richard Stallman
via Karl Berry.
2005-01-23 Paul Eggert
* tests/c++.at (AT_CHECK_DOXYGEN): Don't use options after operands.
Problem reported by twlevo@xs4all.nl.
2005-01-21 Paul Eggert
* data/yacc.c (YYCOPY, yystpcpy, yyparse): Remove "register"
keyword; it's not needed with modern compilers, and it doesn't
affect correctness with older compilers. Suggested by
twlevo@xs4all.nl.
2005-01-17 Paul Eggert
* data/glr.c (yyuserAction): Add "default: break;" case to pacify
gcc -Wswitch-default.
* data/lalr1.cc (yy::]b4_parser_class_name[::parse): Likewise.
* data/yacc.c (yyparse): Likewise.
2005-01-12 Paul Eggert
* src/system.h (OUTPUT_EXT, TAB_EXT): Define only if not defined
already. Let config.h define any nonstandard values.
2005-01-10 Paul Eggert
* tests/calc.at (_AT_DATA_CALC_Y): Use alarm (100), not alarm (10),
for the benefit of slower hosts. Problem reported by
Nelson H. F. Beebe.
2005-01-07 Paul Eggert
* 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)".
2005-01-05 Paul Eggert
* TODO: Mention that we should allow NUL bytes in tokens.
2005-01-02 Paul Eggert
* src/scan-skel.l (<>): Don't close standard output.
Problem reported by Hans Aberg.
2005-01-01 Paul Eggert
* src/getargs.c (version): Happy new year; update overall
program copyright date from 2004 to 2005.
* src/scan-skel.l ("@output ".*\n): Don't close standard output.
Problem reported by Hans Aberg.
* tests/output.at (AT_CHECK_OUTPUT): New arg SHELLIO.
(Output file names.): Add a test for the case when standard output
is closed.
2004-12-26 Paul Eggert
* doc/bison.texinfo (@copying): Update FDL version number to 1.2,
to fix an oversight in the Bison 2.0 manual.
2004-12-25 Paul Eggert
* NEWS: Version 2.0. Reformat the existing news items since
1.875, so that related items are grouped together.
* configure.ac (AC_INIT): Bump version to 2.0.
* src/parse-gram.c, src/parse-gram.h: Regenerate with 2.0.
* 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.
* data/lalr1.cc (yydestruct_): Pacify unused variable warning
for yymsg, too.
* src/LR0.c (new_itemsets): Use memset rather than zeroing by
hand. This avoids a warning about comparing int to size_t when
GCC warnings are enabled.
2004-12-22 Paul Eggert
* 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.
* doc/bison.texinfo (Location Default Action): Mention that n must
be zero when k is zero. Suggested by Frank Heckenbach.
2004-12-22 Akim Demaille
* 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.
2004-12-21 Akim Demaille
* data/lalr1.cc (parser::parse): Return a bool instead of an int.
2004-12-21 Akim Demaille
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.
2004-12-20 Akim Demaille
Use more STL like names: my_class instead of MyClass.
* data/lalr1.cc (LocationStack, LocationType, RhsNumberType)
(SemanticStack, SemanticType, StateStack, StateType)
(TokenNumberType, Stack, Slice, Traits, Parser::location)
(Parser::value): Rename as...
(location_stack, location_type, rhs_number_type, semantic_stack)
(semantic_type, state_stack, state_type, token_number_type, stack)
(slice, traits, parser::yylloc, parser::yylval): these.
* tests/calc.at, tests/regression.at, tests/actions.at: Adjust.
2004-12-19 Paul Eggert
* data/glr.c (YYLLOC_DEFAULT): Use GNU spacing conventions.
* data/yacc.c (YYLLOC_DEFAULT): Likewise.
2004-12-17 Paul Eggert
Remove uses of 'short int' and 'unsigned short int'. This raises
some arbitrary limits. It uses more memory but nowadays that's
not much of an issue.
This change does not affect the generated parsers; that's a different
task, as some users will want to conserve memory there.
Ideally we should use size_t to represent all object counts, and
something like ptrdiff_t to represent signed differences of object
counts; but that will require more code-cleanup than I have the
time to do right now.
* src/LR0.c (allocate_itemsets, new_itemsets, save_reductions):
Use size_t, not int or short int, to count objects.
* src/closure.c (nritemset, closure): Likewise.
* src/closure.h (nritemset, closure): Likewise.
* src/nullable.c (nullable_compute): Likewise.
* src/print.c (print_core): Likewise.
* src/print_graph.c (print_core): Likewise.
* src/state.c (state_compare, state_hash): Likewise.
* src/state.h (struct state): Likewise.
* src/tables.c (default_goto, goto_actions): Likewise.
* src/gram.h (rule_number, rule): Use int, not short int.
* src/output.c (prepare_rules): Likewise.
* src/state.h (state_number, STATE_NUMBER_MAXIMUM, transitions,
errs, reductions): Likewise.
* src/symtab.h (symbol_number, SYMBOL_NUMBER_MAXIMUM, struct symbol):
Likewise.
* src/tables.c (vector_number, tally, action_number,
ACTION_NUMBER_MINIMUM): Likewise.
* src/output.c (muscle_insert_short_int_table): Remove.
2004-12-17 Akim Demaille
* 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 $.
2004-12-16 Paul Eggert
* data/glr.c (b4_lhs_value, b4_rhs_value, b4_rhs-location):
Parenthesize rhs to avoid obscure problems with mistakes like
"foo$$bar = foo$1bar;". Problem reported by twlevo at xs4all.
* data/lalr1.cc (b4_lhs_value, b4_rhs_value, b4_lhs_location,
b4_rhs_location): Likewise.
* data/yacc.c (b4_lhs_value, b4_rhs_value, b4_lhs_location,
b4_rhs_location): Likewise.
2004-12-16 Akim Demaille
* data/lalr1.cc (yyreport_syntax_error_): Catch up with glr.c and
yacc.c: be sure to stay within yycheck_.
* tests/actions.at: Re-enable C++ tests.
2004-12-16 Akim Demaille
* src/print_graph.c (print_graph): Remove layoutalgorithm uses for
real.
2004-12-16 Akim Demaille
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.
2004-12-16 Akim Demaille
Move lalr1.cc internals into yy*.
* data/lalr1.cc (semantic_stack_, location_stack_, state_stack_)
(semantic_stack_, location_stack_, pact_, pact_ninf_, defact_)
(pgoto_, defgoto_, table_, table_ninf_, check_, stos_, r1_, r2_)
(name_, rhs_, prhs_, rline_, token_number_, eof_, last_, nnts_)
(empty_, final_, terror_, errcode_, ntokens_)
(user_token_number_max_, undef_token_, n_, len_, state_, nerrs_)
(looka_, ilooka_, error_range_, nerrs_):
Rename as...
(yysemantic_stack_, yylocation_stack_, yystate_stack_)
(yysemantic_stack_, yylocation_stack_, yypact_, yypact_ninf_)
(yydefact_, yypgoto_, yydefgoto_, yytable_, yytable_ninf_)
(yycheck_, yystos_, yyr1_, yyr2_, yyname_, yyrhs_, yyprhs_)
(yyrline_, yytoken_number_, yyeof_, yylast_, yynnts_, yyempty_)
(yyfinal_, yyterror_, yyerrcode_, yyntokens_)
(yyuser_token_number_max_, yyundef_token_, yyn_, yylen_, yystate_)
(yynerrs_, yylooka_, yyilooka_, yyerror_range_, yynerrs_):
these.
2004-12-15 Paul Eggert
Fix some problems reported by twlevo at xs4all.
* src/symtab.c (symbol_new): Report an error if the input grammar
contains too many symbols. This is better than calling abort() later.
* 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.
2004-12-15 Akim Demaille
* data/lalr1.cc: Normalize /** \brief ... */ to ///.
Add more Doxygen comments.
(symprint_, stack_print_, reduce_print_, destruct_, pop)
(report_syntax_error_, translate_): Rename as...
(yysymprint_, yystack_print_, yyreduce_print_, yydestruct_)
(yypop_, yyreport_syntax_error_, yytranslate_): this.
2004-12-15 Akim Demaille
* data/lalr1.cc (lex_): Rename as...
(yylex_): this.
Move the trace here.
Take the %name-prefix into account.
Reported by Alexandre Duret-Lutz.
2004-12-15 Akim Demaille
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.
2004-12-15 Akim Demaille
Remove b4_root related material: failure experiment
(which goal was to allow to derive from a class).
* data/lalr1.cc (b4_root, b4_param, b4_constructor): Remove
definitions and uses.
2004-12-14 Paul Eggert
* data/glr.c (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.
2004-12-12 Paul Eggert
* data/glr.c (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.
* data/yacc.c (YYRHSLOC): New macro, taken from glr.c.
(YYLLOC_DEFAULT): Use the same macro as glr.c.
* doc/bison.texinfo (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.
2004-12-10 Paul Eggert
* HACKING: Update email addresses to send announcements to.
* configure.ac (AC_INIT): Bump version to 1.875f.
2004-12-10 Paul Eggert
* NEWS: Version 1.875e.
* src/parse-gram.c, src/parse-gram.h: Regenerate with 1.875e.
* src/scan-skel.l: Include "complain.h", for "fatal".
* src/relation.h (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.
* src/relation.c: Likewise.
(top, infinity): Now of type relation_node, not int.
(traverse, relation_transpose): Use relation_node, not int.
* data/glr.c (yyuserAction, yyrecoverSyntaxError): Mark args
with ATTRIBUTE_UNUSED if they're not used, to avoid GCC warning.
(yyparse): Remove unused local introduced in 2004-10-25 patch.
* tests/actions.at (_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.
2004-12-08 Paul Eggert
* src/system.h (CALLOC, MALLOC, REALLOC): Remove. All callers
changed to use xcalloc, xnmalloc, xnrealloc, respectively,
unless otherwise specified below.
* src/LR0.c (allocate_itemsets): Use xnmalloc, not xcalloc,
to allocate kernel_base, kernel_items, kernel_size, since
they needn't be initialized to 0.
(allocate_storgae): Likewise, for shiftset, redset, shift_symbol.
* src/closure.c (new_closure): Likewise, for itemset.
* src/derives.c (derives_compute): Likewise, for delts, derives, q.
* src/lalr.c (set_goto_map): Likewise, for temp_map.
(initialize_F): Likewise, for reads, edge, reads[i], includes[i].
(build_relations): Likewise for edge, states1, includes.
* src/nullable.c (nullable_compute): Likewise, for squeue, relts.
* src/reader.c (packgram): Likewise, for ritem, rules.
* src/reduce.c (nonterminals_reduce): Likewise for nontermmap.
* src/relation.c (relation_digraph): Likewise for VERTICES.
(relation_transpose): Likewise for new_R, end_R.
* src/symtab.c (symbols_token_translations_init): Likewise for
token_translations.
* src/tables.c (save_row): Likewise for froms, tos, conflict_tos.
(token_actions): Likewise for yydefact, actrow, conflrow,
conflict_list.
(save_column): Likewise for froms[symno], tos[symno].
(goto_actions): Likewise for state_count.
(pack_table): Likewise for base, pos, check.
(tables_generate): Likewise for width.
* src/LR0.c (set_states): Don't reuse kernel_size and kernel_base
for initial core. Just have a separate core, so we needn't worry
about whether kernel_size and kernel_base are initialized.
* src/LR0.c (shift_symbol, redset, shiftset, kernel_base,
kernel_size, kernel_items): Remove unnecessary initialization.
* src/conflicts.c (conflicts): Likewise.
* src/derives.c (derives): Likewise.
* src/muscle_tablc (muscle_insert): Likewise.
* src/relation.c (relation_digraph): Likewise.
* src/tables.c (froms, tos, conflict_tos, tally, width, actrow, order,
conflrow, conflict_table, conflict_list, table, check):
Likewise.
* src/closure.c (new_closure): Arg is of type unsigned int, not int.
This is because all callers pass unsigned int.
* src/closure.h (new_closure): Likewise.
* src/lalr.c (initialize_F): Initialize reads[i] in all cases.
(build_relations): Initialize includes[i] in all cases.
* src/reader.c (packgram): Always initialize rules[ruleno].prec
and rules[ruleno].precsym. Initialize members in order.
* src/relation.c (relation_transpose): Always initialize new_R[i]
and end_R[i].
* src/table.c (conflict_row): Initialize 0 at end of conflict_list.
* src/output.c (prepare_actions): Pass 0 instead of conflict_list[0];
conflict_list[0] was always 0, but now it isn't initialized.
* src/table.c (table_grow): When conflict_table grew, the grown
area wasn't cleared. Fix this.
* lib/.cvsignore: Add strdup.c, strdup.h.
* m4/.cvsignore: Add strdup.m4.
2004-12-07 Paul Eggert
* src/lalr.h (GOTO_NUMBER_MAXIMUM): New macro.
* src/lalr.c (set_goto_map): Don't allow ngotos to equal
GOTO_NUMBER_MAXIMUM, since we occasionally compute
ngotos + 1 without checking for overflow.
(build_relations): Use END_NODE, not -1, to denote end of edges.
* src/lalr.c (set_goto_map, map_goto, initialize_F, add_loopback_edge,
build_relations): Use goto_number, not int, for goto numbers.
* src/tables.c (save_column, default_goto): Likewise.
2004-11-23 Akim Demaille
* data/lalr1.cc (YYSTYPE): Define it as is done for C, instead
of #defining from yystype.
Don't typedef yystype, C++ does not need it.
This lets it possible to forward declare it as union.
2004-11-23 Paul Eggert
* bootstrap (gnulib_modules): Add extensions.
Problem reported by Jim Meyering.
2004-11-22 Paul Eggert
* src/LR0.c, src/closure.c, src/derives.c, src/gram.c,
src/lalr.c, src/nullable.c, src/relation.c, src/scan-skel.l,
src/system.h, src/tables.c: XFREE -> free, to accommodate
recent change to gnulib xalloc.h.
Problem reported by Jim Meyering.
2004-11-17 Akim Demaille
* data/lalr1.cc (symprint_): Use cdebug_ to avoid warnings.
2004-10-28 Akim Demaille ,
Alexandre Duret-Lutz
* data/lalr1.cc (Parser::yycdebug_): New, a pointer, to allow
changes.
(YYCDEBUG): Adjust.
Use it instead of cdebug_.
(Parser::debug_stream, Parser::set_debug_stream): New.
(Parser::symprint_): Define cdebug_ for temporary backward
compatibility.
* tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Use
debug_stream ().
2004-11-17 Akim Demaille
* data/lalr1.cc (Parser:print_): Remove, use %printer instead.
* tests/regression.at (_AT_DATA_DANCER_Y): Adjust.
* tests/calc.at (_AT_DATA_CALC_Y): Ditto.
* tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Likewise.
2004-10-27 Paul Eggert
* data/glr.c (yyloc_default): Remove; not used.
Problem reported by Frank Heckenbach.
2004-10-25 Akim Demaille
* data/glr.c (YYRHSLOC): Move its definition next to its uses.
Introduce another definition to address simple location arrays.
(yyGLRStack): New member: yyerror_range.
(yyrecoverSyntaxError, yyparse): Update it.
(yyrecoverSyntaxError): Use it when shifting the error token to
have an accurate range, equivalent to the one computed by both
yacc.c and lalr1.cc.
* tests/cxx-type.at (_AT_TEST_GLR_CXXTYPES): Change its yylex so
that column numbers start at column 0, as per GNU Coding
Standards, the others tests, and the doc.
(_AT_RESOLVED_GLR_OUTPUT_WITH_LOC, _AT_AMBIG_GLR_OUTPUT_WITH_LOC):
Adjust to the above change (first column is 0).
And adjust the location of the "", now covering the whole
line.
2004-10-22 Akim Demaille
and Paul Eggert
Remove some arbitrary limits on goto numbers and relations.
* src/lalr.c (goto_map, ngotos, from_state, to_state): Omit
initial values, since they're never used.
(set_goto_map): ngotos is now unsigned, so test for overflow
by seeing whether it wraps around to zero.
* src/lalr.h (goto_number): Now size_t, not short int.
(GOTO_NUMBER_MAXIMUM): Remove.
* src/relation.c (relation_print, traverse, relation_transpose):
Check for END_NODE rather than looking at sign.
* src/relation.h (END_NODE): New macro.
(relation_node): Now size_t, not short int.
2004-10-22 Paul Eggert
* doc/bison.texinfo (Language and Grammar): In example, "int" is a
keyword, not an identifier. Problem reported by Baron Schwartz in
.
2004-10-11 Akim Demaille
* src/symtab.c (symbol_check_alias_consistency): Also check
type names, destructors, and printers.
Reported by Alexandre Duret-Lutz.
Recode the handling of associativity and precedence in terms
of symbol_precedence_set.
Accept no redeclaration at all, not even equal to the previous
value.
(redeclaration): New.
Use it to factor redeclaration complaints.
(symbol_make_alias): Don't set the type of the alias, let
symbol_check_alias_consistency do it as for other features.
* src/symtab.h (symbol): Add new member prec_location, and
type_location.
* src/symtab.c (symbol_precedence_set, symbol_type_set): Set them.
* tests/input.at (Incompatible Aliases): New.
2004-10-09 Paul Eggert
.cvsignore fixes to accommodate gnulib changes,
and the practice of naming build directories "_build".
* .cvsignore: Add "_*". Sort.
* lib/.cvsignore: Add getopt_.h, xalloc-die.c.
* m4/.cvsignore: Add "*_gl.m4".
2004-10-06 Akim Demaille
* src/parse-gram.y (add_param): Fix the truncation of trailing
spaces.
2004-10-05 Akim Demaille
In Bison 1.875's yacc.c, YYLLOC_DEFAULT was called regardless
whether the reducion was empty or not. This leaves room to
improve the use of YYLLOC_DEFAULT in such a case.
lalr1.cc is still experimental, so changing this is acceptable.
And finally, there are probably not many users who changed the
handling of locations in GLR, so changing is admissible too.
* data/glr.c, data/lalr1.cc, data/yacc.c (YYLLOC_DEFAULT): On an
empty reduction, set @$ to an empty location ending the previously
stacked symbol.
Adjust uses to make sure the code is triggered on empty
reductions.
* tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Adjust the
expected output: empty reductions have empty locations.
2004-09-29 Akim Demaille
* data/lalr1.cc: Move towards a more standard C++ coding style
for templates: Class < T > -> Class.
2004-09-29 Akim Demaille
* data/lalr1.cc: Reinstall the former ctor, for sake of
compatibility, but warn it will be removed.
Move towards a more standard C++ coding style (i.e., type *var ->
type* var).
2004-09-27 Paul Eggert
* src/parse-gram.y (add_param): Rewrite to avoid strchr,
since it's less likely to work if NULs are involved in the future.
2004-09-27 Akim Demaille
* data/yacc.c (YY_LOCATION_PRINT): Fix its default declaration.
2004-09-27 Akim Demaille
* data/lalr1.cc (b4_parse_param_decl_1): New.
(b4_parse_param_decl): Use it to have different names between attribute
and argument names.
(b4_cc_constructor_call): Likewise.
2004-09-24 Akim Demaille
* src/parse-gram.y (add_param): Strip the leading and trailing
blanks from a formal argument declaration.
(YY_LOCATION_PRINT): New.
2004-09-24 Akim Demaille
* data/c.m4 (b4_yysymprint_generate): Move the YYINPUT invocation
after the location.
2004-09-24 Akim Demaille
* doc/bison.texinfo (Table of Symbols): Sort.
2004-09-21 Akim Demaille
* data/yacc.c, data/glr.c (b4_at_dollar, b4_dollar_dollar): Remove
the useless parentheses.
Suggested by Paul Eggert.
2004-09-20 Akim Demaille
Let the initial-action act on the look-ahead, and use it for the
"initial push" (corresponding to an hypothetical beginning-of-file).
And let lalr1.cc honor %initial-action.
* doc/bison.texinfo (Initial Action Decl): Clarify, and add an
example.
* data/lalr1.cc (Parser::initlocation_): Remove, bad experiment.
(Parser::Parser): Remove the ctor that used to initialize it.
(Parser::parse): Like in the other skeletons, issue the "starting
parse" message before any action.
Honor %initial-action.
Initialize the stacks with the lookahead.
* data/yacc.c: Let $$ and @$ in %initial-action designate the
look-ahead.
Push them in the stacks.
* tests/actions.at, tests/calc.at: Adjust the C++ ctor invocations.
2004-09-20 Akim Demaille
* doc/bison.texinfo (Initial Action Decl): New.
2004-09-20 Akim Demaille
* data/yacc.c (YY_LOCATION_PRINT): Use YYLTYPE_IS_TRIVIAL as a
clearer criterion to define it.
(parse): Initialize the initial location when YYLTYPE_IS_TRIVIAL.
When reducing on an empty RHS, use the latest stacked location as
location.
yylloc is not always available.
* data/glr.c: Likewise.
Also, honor initial-actions.
2004-09-20 Akim Demaille
* data/yacc.c (YY_LOCATION_PRINT): New.
Define when we know YYLTYPE's structure, i.e., when the default
YYLLOC_DEFAULT is used.
* data/c.m4 (b4_yysymprint_generate): Use it.
* data/lalr1.cc (YYLLOC_DEFAULT): Stop relying on the initial
value of the result.
(error_start_): Replace with...
(error_range_): this location array.
This allows to replace code relying on the implementation of
locations by portable code.
* data/yacc.c (yylerrsp): Replace with...
(yyerror_range): this.
Every time a token is popped, update yyerror_range[0], to have an
accurate location for the error token.
* data/glr.c (YY_LOCATION_PRINT): New.
(yyprocessOneStack): Fix an invocation of YY_SYMBOL_PRINT:
deference a pointer.
* tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): No longer
report the location in %printers.
* src/scan-skel.l: Instead of abort, report error messages to ease
understanding skeleton scanning failures.
2004-09-16 Akim Demaille
* data/lalr1.cc (Stack::Iterator, Stack::ConstIterator): Rename as...
(iterator, const_iterator): these, to be more in the C++ spirit.
Also, return reverse iterators so that when displaying the stack
we display its bottom first.
(Parser::stack_print_, Parser::reduce_print_): Match the messages
from yacc.c.
We should probably use vector here though.
2004-09-16 Akim Demaille
Have more complete shift traces.
* data/yacc.c, data/lalr1.c, data/glr.c: Use YY_SYMBOL_PRINT
to report Shifts instead of ad hoc YYDPRINTF invocations,
including for the error token.
* data/lalr1.cc (symprint_): Output the location.
* tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): In C++, don't
output the location within the %printer.
Activate GLR tests, at least to make sure they compile properly.
They still don't pass though.
* tests/calc.at: Adjust expect verbose output, since now "Entering
state..." is on a different line than the "Shifting" message.
2004-09-08 Akim Demaille
* tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Move the
Bison directive from the Bison file to the invocation of this
macro, so that these directives are passed to
AT_BISON_OPTION_PUSHDEFS to get correct help macros.
Use these helping macros (e.g., AT_LOC, AT_VAL and so forth).
Move the AT_SETUP/AT_CLEANUP outside, to report as test title
the extra Bison directives instead of the whole series.
Change the grammar so that there are recoverable errors, and
unrecoverable errors. Now we can have the parser give up before
consuming the whole input. As a result we now can observe that
the lookahead is freed when needed.
Change the parser source to parse argv[1] instead of a hard coded
string.
Simplify yylex, and give a value and location to EOF.
Simplify some invocations of AT_CHECK_PRINTER_AND_DESTRUCTOR that
passed directives already coded in the file.
Add some tests to check the location of "error".
For some tests, the C++ parser is correct, and not yacc.c.
For other tests, they provide different, but unsatisfying, values,
so keep the C++ value so that at least one parser is "correct"
according to the test suite.
(Actions after errors): Remove, this is subsumed by the
AT_CHECK_PRINTER_AND_DESTRUCTOR series.
2004-09-06 Akim Demaille
* data/lalr1.cc: Adjust the indentation of the labels.
(Parser::pop): New.
Use it.
2004-09-06 Akim Demaille
* data/yacc.cc, data/glr.cc (yydestruct): Accept an additional
argument, an informative message.
Call YY_SYMBOL_PRINT.
Adjust all callers: integrate the associated YY_SYMBOL_PRINT.
* data/lalr1.cc (destruct_): Likewise.
In addition, no longer depend on b4_yysymprint_generate and
b4_yydestruct_generate to generate these functions, do it "by
hand".
2004-09-03 Akim Demaille
* data/glr.c, data/lalr1.cc, data/yacc.c: When YYABORT was
invoked, yydestruct the lookahead.
* tests/calc.at (Calculator $1): Update the expected lengths of
traces: there is an added line for the discarded lookahead.
* doc/bison.texinfo (Destructor Decl): Some rewording.
Define "discarded" symbols.
2004-09-02 Akim Demaille
* data/lalr1.cc (translate_, destruct_): No reason to be static.
2004-09-02 Akim Demaille
* data/glr.c, yacc.c (YYDSYMPRINT): Remove, not used.
(YYDSYMPRINTF): Rename as...
(YY_SYMBOL_PRINT): this.
* data/lalr1.cc (YY_SYMBOL_PRINT): New, modeled after the previous
two.
Use it instead of direct symprint_ calls.
(yybackup): Tweak the "Now at end of input" case to match yacc.c's
one.
2004-09-02 Akim Demaille
* data/lalr1.cc (b4_yysymprint_generate): New.
(symprint_): New member function, defined when YYDEBUG.
Use it consistently instead of token/nterm debugging output by
hand.
* tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Adjust
%printer calls to use cdebug_ when using lalr1.cc.
2004-08-30 Florian Krohm
* data/glr.c: Guard the declarations of yypstack and yypdumpstack
with #ifdef YYDEBUG.
2004-08-26 Akim Demaille
* doc/bison.texinfo (Implementing Loops): Rename as...
(Implementing Gotos/Loops): this.
2004-08-13 Paul Eggert
Adjust to latest gnulib.
* bootstrap (gnulib_modules): Add xalloc-die.
Set LC_ALL=C so that file names sort consistently.
Prefer the gnulib copies of gettext.m4, glibc21.m4,
inttypes_h.m4, lib-ld.m4, lib-prefix.m4, po.m4, stdint_h.m4,
uintmax_t.m4, ulonglong.m4.
(intl_files_to_remove): Add gettext.m4, lib-ld.m4, lib-prefix.m4,
po.m4 since we are now using _gl.m4 instead.
2004-08-10 Florian Krohm
* src/scan-action.l: Remove. Scanning of semantic actions is
handled in scan-gram.l.
2004-08-07 Florian Krohm
* src/scan-gram.l (handle_syncline): Use uniqstr_new not xstrdup.
* src/location.h (struct): The file member is a uniqstr.
(equal_boundaries): Use UNIQSTR_EQ for comparison.
2004-07-22 Paul Eggert
Fix bug with non-%union parsers that have printers or destructors,
which led to a Bison core dump. Reported by Peter Fales in
.
* data/c.m4 (b4_symbol_actions): Don't assume %union was used.
* data/lalr1.cc (yystype) [defined YYSTYPE]: Define to YYSTYPE,
not to our own type.
* src/output.c (symbol_destructors_output, symbol_printers_output):
Don't assume %union.
* tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR,
AT_CHECK_PRINTER_AND_DESTRUCTOR): New argument
UNION-FLAG. All callers changed.
(_AT_CHECK_PRINTER_AND_DESTRUCTOR): Don't assume %union.
Use type char, not unsigned int, when declaring an array of char;
this lets us remove a cast.
(Printers and Destructors): Add non-%union test cases.
2004-06-21 Paul Eggert
* doc/bison.texinfo: Minor editorial changes, mostly to the new
GLR writeups. E.g., avoid frenchspacing and the future tense,
change "lookahead" to "look-ahead", and change "wrt" to "with
respect to".
2004-06-21 Paul Hilfinger
* doc/bison.texinfo (Merging GLR Parses, Compiler Requirements):
New sections, split off from the GLR Parsers section. Put the new
Simple GLR Parser near the start of the GLR section, for clarity.
Rewrite connective text.
2004-06-21 Frank Heckenbach
* doc/bison.texinfo (Simple GLR Parsers): New section.
2004-06-21 Paul Eggert
* NEWS, TODO, doc/bison.texinfo:
Use "look-ahead" instead of "lookahead", to be consistent.
* REFERENCES: Fix incorrect reference to DeRemer and Pennello,
while we're fixing "look-ahead".
* src/conflicts.c (shift_set): Renamed from shiftset.
(look_ahead_set): Renamed from lookaheadset.
* src/print.c: Likewise.
* src/getargs.c (report_args): Add "look-ahead" as the new canonical
name for "lookahead".
(report_types, usage): Likewise.
* src/getargs.h (report_look_ahead_tokens): Renamed from
report_lookaheads.
* src/lalr.c (compute_look_ahead_tokens): Renamed from
compute_lookaheads.
(state_look_ahead_tokens_count): Renamed from state_lookaheads_count.
(look_ahead_tokens_print): Renamed from lookaheads_print.
* src/state.c (state_rule_look_ahead_tokens_print): Renamed from
state_rule_lookaheads_print.
* src/state.h: Likewise.
(reductions.look_ahead_tokens): Renamed from lookaheads.
* tests/torture.at (AT_DATA_LOOK_AHEAD_TOKENS_GRAMMAR): Renamed from
AT_DATA_LOOKAHEADS_GRAMMAR.
2004-06-03 Paul Eggert
* README: Update location of patched M4 distribution.
2004-05-30 Albert Chin-A-Young
Don't assume the C++ compiler takes the same arguments as the C compiler
(trivial change).
* configure.ac (O0CXXFLAGS): New var.
* tests/atlocal.in (CXXFLAGS): Use it.
2004-05-29 Paul Eggert