X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/d862b1be600710ea36579a5ff867e583491248bb..9e32add8e6e9ba278655142e1aa0a85773f18cc7:/ChangeLog diff --git a/ChangeLog b/ChangeLog index 41ffcad7..7c5dee4d 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,946 @@ +2002-11-03 Akim Demaille + + * tests/calc.at: Change all the AT_CHECK_CALC_LALR and + AT_CHECK_CALC_GLR invocations to use % directives, instead of + command line options. + * tests/cxx-type.at: Formatting changes. + +2002-11-03 Paul Eggert + + * src/scan-gram.l: Revamp to fix POSIX incompatibilities, + to count columns correctly, and to check for invalid inputs. + + Use mbsnwidth to count columns correctly. Account for tabs, too. + Include mbswidth.h. + (YY_USER_ACTION): Invoke extend_location rather than LOCATION_COLUMNS. + (extend_location): New function. + (YY_LINES): Remove. + + Handle CRLF in C code rather than in Lex code. + (YY_INPUT): New macro. + (no_cr_read): New function. + + Scan UCNs, even though we don't fully handle them yet. + (convert_ucn_to_byte): New function. + + Handle backslash-newline correctly in C code. + (SC_LINE_COMMENT, SC_YACC_COMMENT): New states. + (eols, blanks): Remove. YY_USER_ACTION now counts newlines etc.; + all uses changed. + (tag, splice): New EREs. Do not allow NUL or newline in tags. + Use {splice} wherever C allows backslash-newline. + YY_STEP after space, newline, vertical-tab. + ("/*"): BEGIN SC_YACC_COMMENT, not yy_push_state (SC_COMMENT). + + (letter, id): Don't assume ASCII; e.g., spell out a-z. + + ({int}, handle_action_dollar, handle_action_at): Check for integer + overflow. + + (YY_STEP): Omit trailing semicolon, so that it's more like C. + + (): Allow \0 and \00 + as well as \000. Check for UCHAR_MAX, not 255. + Allow \x with an arbitrary positive number of digits, as in C. + Check for overflow here. + Allow \? and UCNs, for compatibility with C. + + (handle_symbol_code_dollar): Use quote_n slot 1 to avoid collision + with quote slot used by complain_at. + + * tests/input.at: Add tests for backslash-newline, m4 quotes + in symbols, long literals, and funny escapes in strings. + + * configure.ac (jm_PREREQ_MBSWIDTH): Add. + * lib/Makefile.am (libbison_a_SOURCES): Add mbswidth.h, mbswidth.c. + * lib/mbswidth.h, lib/mbswidth.c: New files, from GNU gettext. + * m4/Makefile.am (EXTRA_DIST): Add mbswidth.m4. + * m4/mbswidth.m4: New file, from GNU coreutils. + + * doc/bison.texinfo (Grammar Outline): Document // comments. + (Symbols): Document that trigraphs have no special meaning in Bison, + nor is backslash-newline allowed. + (Actions): Document that trigraphs have no special meaning. + + * src/location.h (LOCATION_COLUMNS, LOCATION_LINES): Remove; + no longer used. + +2002-11-02 Paul Eggert + + * src/reader.c: Don't include quote.h; not needed. + (get_merge_function): Reword warning to be consistent with + type clash diagnostic in grammar_current_rule_check. + + * lib/quotearg.c (quotearg_buffer_restyled): Fix off-by-two + bug in trigraph handling. + + * src/output.c (prepare_symbols): When printing token names, + escape "[" as "@<:@" and likewise for "]". + + * src/system.h (errno): Remove declaration, as we are now + assuming C89 or better, and C89 guarantees errno. + +2002-10-30 Paul Eggert + + * lib/bitset_stats.c (bitset_stats_read, bitset_stats_write): + Check for close failures. + * src/files.h (xfclose): Return void, not int, since it always + returned zero. + * src/files.c (xfclose): Likewise. Report I/O error if ferror + indicates one. + * src/output.c (output_skeleton): Use xfclose rather than fclose + and ferror. xfclose now checks ferror. + + * data/glr.c (YYLEFTMOST_STATE): Remove. + (yyreportTree): Use a stack-based leftmost state. This avoids + our continuing battles with bogus warnings about initializers. + +2002-10-30 Akim Demaille + + * src/system.h: Don't use #ifdef/#ifndef on HAVE_ values, only + #if. + +2002-10-24 Paul Eggert + + Version 1.75a. + + * tests/calc.at (_AT_DATA_CALC_Y): Remove unused strcat declaration. + * tests/cxx-type.at (_AT_TEST_GLR_CALC): Include stdlib.h, since + we use malloc. Don't assume 'A' through 'Z' are contiguous. + Don't assume strdup exists; POSIX says its an XSI extension. + Check for buffer overflow on input. + +2002-10-24 Akim Demaille + + * src/output.c (output_skeleton): Don't disable M4sugar comments + too soon: it results in comments being expanded. + * data/yacc.c, data/glr.c, data/lalr1.cc: Do it right before the + first output. + +2002-10-24 Akim Demaille + + * data/yacc.c (m4_int_type): New. + * data/c.m4 (m4_int_type): Don't use yysigned_char, but `signed + char' as only yacc.c wants K&R portability. + * data/glr.c (yysigned_char): Remove. + * data/lalr1.cc: Rename the trailing b4_name as b4_parser_class_name. + Reported by Quoc Peyrot. + +2002-10-23 Paul Eggert + + * src/main.c (main): With --trace=time, report times even if a + non-fatal error occurs. Formerly, the times were reported in some + such cases but not in others. + * src/reader.c (reader): Just return if a complaint has been issued, + instead of exiting, so that 'main' can report times. + +2002-10-22 Akim Demaille + + * src/system.h: Include sys/types. + Reported by Bert Deknuydt. + +2002-10-23 Paul Eggert + + * configure.ac (AC_PROG_LEX): Use instead of AM_PROG_LEX. + Suggested by Art Haas. + +2002-10-22 Paul Eggert + + * src/complain.c (exit) [! (STDC_HEADERS || _LIBC)]: Remove exit + decl; not needed any more. + * src/main.c (main): Use return to exit, undoing yesterday's change. + The last OS that we could find where this wouldn't work is + SunOS 3.5, and that's too old to worry about now. + + * data/glr.c (struct yyltype): Define members even when not + doing locations. This is more consistent with yacc.c, and it + works around the following bug reports: + http://mail.gnu.org/pipermail/bug-bison/2002-October/001764.html + http://mail.gnu.org/pipermail/bug-bison/2002-October/001769.html + and I hope it also fixes this bug report: + http://mail.gnu.org/pipermail/bug-bison/2002-October/001748.html + + * doc/bison.texinfo: Minor spelling and typographical fixes. Use + @acronym consistently. Standardize on "Yacc" instead of "YACC", + "Algol" instead of "ALGOL". Give a bit more history about BNF. + +2002-10-22 Akim Demaille + + * data/README: New. + +2002-10-21 Paul Eggert + + Be consistent about 'bool'; the old code used an enum in one + module and an int in another, and this violates the C standard. + * m4/stdbool.m4: New file, from coreutils 4.5.3. + * configure.ac (AC_HEADER_STDBOOL): Add. + * m4/Makefile.am (EXTRA_DIST): Add stdbool.m4. + * src/muscle_tab.c (hash_compare_muscles): (a ? FALSE : TRUE) -> (! a) + * src/symtab.c (hash_compare_symbol_t): Likewise. + * src/system.h (bool, false, true): Use a definition consistent + with ../lib/hash.c. All uses changed. + + * src/complain.c (warning_issued): Renamed from warn_message_count, + so that we needn't worry about integer overflow (!). + Now of type bool. All uses changed. + (complaint_issued): Renamed from complain_message_count; likewise. + + * src/main.c (main): Use exit to exit with failure. + + * src/complain.c (fatal_at, fatal): Use EXIT_FAILURE and EXIT_SUCCESS + rather than 1 and 0. + * src/main.c (main): Likewise. + * src/getargs.c (getargs): Likewise. + * src/reader.c (reader): Likewise. + + * src/getarg.c (getargs): Remove duplicate code for + "Try `bison --help'". + + * src/files.c (xfopen, xfclose): Use EXIT_FAILURE rather than 2. + What was that "2" for? + + * src/complain.h (fatal, fatal_at): Add __attribute__((__noreturn__)). + * src/getargs.c (usage): Likewise. + + * src/getargs.c (getargs): When there are too few operands, report + the last one. When there are too many, report the first extra + one. This is how diffutils does it. + +2002-10-20 Paul Eggert + + Remove K&R vestiges. + * configure.ac (AC_C_CONST, AM_C_PROTOTYPES): Remove. + * src/complain.c (VA_START): Remove. Assume prototypes. + (vfprintf) [! (HAVE_VPRINTF || defined vfprintf)]: New macro. + (private_strerror, warn_at, warn, complain_at, complain, fatal_at, + fatal): Assume prototypes. + * src/complain.h: Assume prototypes. + * src/system.h (PARAMS): Remove. + Include unconditionally, since it's guaranteeed even + for a freestanding C89 compiler. + (SHRT_MIN, SHRT_MAX): Remove, since C89 guarantees them. + * src/vmsgetargs.c (getargs, cli_present, cli_get_value): Prototype. + +2002-10-20 Akim Demaille + + * src/muscle_tab.c (muscle_grow): Remove trailing debugging code. + * data/glr.c (YY_USER_FORMALS, YY_USER_ARGS): New. + (yyuserAction, yydoAction, yyglrReduce, yyresolveValue) + (yyresolveStates, yyresolveAction, yyresolveStack) + (yyprocessOneStack): Use them. + (yy_reduce_print): New. + * tests/calc.at (_AT_DATA_CALC_Y): Exercise %parse-param. + +2002-10-20 Akim Demaille + + * data/c.m4 (b4_c_ansi_args): Recognize functions with no + arguments and output `void'. + (b4_c_function): Rename as... + (b4_c_function_def): this. + (b4_c_function_decl, b4_c_ansi_function_def) + (b4_c_ansi_function_decl): New. + Change the interpretation of the arguments: before `int, foo', now + `int foo, foo'. + * data/yacc.c (yyparse): Prototype and define thanks to these. + Adjust b4_c_function_def uses. + * data/glr.c (yyparse): Likewise, but ANSI only. + +2002-10-20 Akim Demaille + + * src/output.c (prepare): Move the definition of `tokens_number', + `nterms_number', `undef_token_number', `user_token_number_max' + to... + (prepare_tokens): Here. + (prepare_tokens): Rename as... + (prepare_symbols): this. + (prepare): Move the definition of `rules_number' to... + (prepare_rules): here. + (prepare): Move the definition of `last', `final_state_number', + `states_number' to... + (prepare_states): here. + * data/yacc.c, data/lalr1.cc, data/glr.c: Normalize `>' into `<'. + +2002-10-20 Akim Demaille + + * src/tables.h, src/tables.c, src/output.c: Comment changes. + +2002-10-20 Akim Demaille + + * data/yacc.c, data/yacc.c (b4_location_if, b4_pure_if): Move to... + * data/c.m4: here. + +2002-10-20 Akim Demaille + + * src/output.c (prepare): Use MUSCLE_INSERT_STRING. + * src/muscle_tab.c (muscle_pair_list_grow): Rename `val as + `pair'. + (muscle_init): Move the `b4_ltype', `b4_maxdepth', `b4_initdepth', + `name' to... + * data/glr.c, data/lalr1.cc, data/yacc.c (b4_location_type) + (b4_stack_depth_init, b4_stack_depth_max, b4_parser_class_name): + These. + +2002-10-19 Paul Eggert + + Do not create a temporary file, as that involves security and + cleanup headaches. Instead, use a pair of pipes. + Derived from a suggestion by Florian Krohm. + * lib/subpipe.c, lib/subpipe.h, m4/subpipe.m4: New files. + * lib/mkstemp.c, lib/readpipe.c, lib/tempname.c, m4/mkstemp.m4: Remove. + * configure.ac (UTILS_FUNC_MKSTEMP, jm_PREREQ_TEMPNAME): Remove. + (BISON_PREREQ_SUBPIPE): Add. + * lib/Makefile.am (libbison_a_SOURCES): Remove readpipe.c. + Add subpipe.h, subpipe.c. + * m4/Makefile.am (EXTRA_DIST): Remove mkstemp.m4. Add subpipe.m4. + * po/POTFILES.in: Add lib/subpipe.c. + * src/output.c: Include "subpipe.h". + (m4_invoke): Remove decl. + (scan_skel): New decl. + (output_skeleton): Use pipe rather than temporary file for m4 input. + Check that m4sugar.m4 is readable, to avoid deadlock. + Check for pipe I/O error. + * src/scan-skel.l (readpipe): Remove decl. + (scan_skel): New function, to be used in place of m4_invoke. + Read from stream rather than file. + + * lib/timevar.c (TICKS_TO_MSEC, CLOCKS_TO_MSEC): Do not cast to + float, as this generates a warning on Solaris 8 + GCC 3.2 with + --enable-gcc-warnings. Instead, divide into 1.0 rather than 1; + this generates a more-accurate value anyway. + + * lib/timevar.c (timervar_accumulate): Rename locals to + avoid confusion with similarly-named more-global. + * src/muscle_tab.c (muscle_pair_list_grow): Likewise. + + * src/output.c (prepare): Use xstrdup to convert char const * + to char *, to avoid GCC warning. + +2002-10-19 Akim Demaille + + * tests/calc.at (_AT_DATA_CALC_Y): Define VAL, LOC, LEX_FORMALS, + LEX_PRE_FORMALS, LEX_ARGS, LEX_PRE_ARGS, USE_LEX_ARGS. + Use them to have `calc.y' ready for %pure-parser. + * data/yacc.c (YYLEX): Pass a yylex return type to + b4_c_function_call. + +2002-10-19 Akim Demaille + + Prototype support of %lex-param and %parse-param. + + * src/parse-gram.y: Add the definition of the %lex-param and + %parse-param tokens, plus their rules. + Drop the `_' version of %glr-parser. + Add the "," token. + * src/scan-gram.l (INITIAL): Scan them. + * src/muscle_tab.c: Comment changes. + (muscle_insert, muscle_find): Rename `pair' as `probe'. + * src/muscle_tab.h (MUSCLE_INSERT_PREFIX): Remove unused. + (muscle_entry_s): The `value' member is no longer const. + Adjust all dependencies. + * src/muscle_tab.c (muscle_init): Adjust: use + MUSCLE_INSERT_STRING. + Initialize the obstack earlier. + * src/muscle_tab.h, src/muscle_tab.c (muscle_grow) + (muscle_pair_list_grow): New. + * data/c.m4 (b4_c_function_call, b4_c_args): New. + * data/yacc.c (YYLEX): Use b4_c_function_call to honor %lex-param. + * tests/calc.at: Use %locations, not --locations. + (AT_CHECK_CALC_GLR): Use %glr-parser, not %glr_parser. + +2002-10-19 Akim Demaille + + * src/getargs.c (usage): Take status as argument and exit + accordingly. + Report the traditional `Try ... --help' message when status != 0. + (usage, version): Don't take a FILE * as arg, it is pointless. + (getargs): When there is an incorrect number of arguments, make it + an error, and report it GNUlically thanks to `usage ()'. + +2002-10-18 Paul Eggert + + * data/glr.c (yyreportParseError): Don't assume that sprintf + yields the length of the printed string, as this is not true + on SunOS 4.1.4. Reported by Peter Klein. + + * tests/calc.at (_AT_DATA_CALC_Y): #undef memcmp and realloc. + * tests/conflicts.at (%nonassoc and eof): Likewise. + Fixes SunOS 4.1.4 test failure reported by Peter Klein. + +2002-10-17 Akim Demaille + + * src/getargs.h (trace_e): Add trace_scan, and trace_parse. + * src/getargs.c (trace_types, trace_args): Adjust. + * src/reader.c (grammar_current_rule_prec_set) + (grammar_current_rule_dprec_set, grammar_current_rule_merge_set): + Standardize error messages. + And s/@prec/%prec/! + (reader): Use trace_flag to enable scanner/parser debugging, + instead of an adhoc scheme. + * src/scan-gram.l: Remove trailing debugging code. + +2002-10-16 Paul Eggert + + * src/muscle_tab.h (MUSCLE_TAB_H_): Was misspelled as + MUSCLE_TAB_H. + + * NEWS: Officially drop support for building Bison with K&R C, + since it didn't work anyway and it's not worth worrying about. + * Makefile.maint (wget_files): Remove ansi2knr.c. + (ansi2knr.c-url_prefix): Remove. + * lib/.cvsignore: Remove ansi2knr, ansi2knr.*. + * lib/Makefile.am (AUTOMAKE_OPTIONS): Remove. + * src/Makefile.am (AUTOMAKE_OPTIONS): Remove. + +2002-10-15 Paul Eggert + + Stop using the "enum_" trick for K&R-style function definitions; + it confused me, and I was the author! Instead, assume that people + who want to use K&R C compilers (when using these modules in GCC, + perhaps?) will run ansi2knr. + + * lib/bbitset.h: (enum_bitset_ops, enum_bitset_type): Remove. + All uses of "enum_" changed to "enum ". + * lib/ebitset.c (enum_ebitset_find_mode): Likewise. + * lib/lbitset.c (enum_lbitset_find_mode): Likewise. + + * lib/abitset.c (abitset_and, abitset_and_cmp, abitset_and_or, + abitset_and_or_cmp, abitset_andn, abitset_andn_cmp, + abitset_andn_or, abitset_andn_or_cmp, abitset_bytes, abitset_copy, + abitset_copy1, abitset_disjoint_p, abitset_empty_p, + abitset_equal_p, abitset_init, abitset_list, abitset_list_reverse, + abitset_not, abitset_ones, abitset_or, abitset_or_and, + abitset_or_and_cmp, abitset_or_cmp, abitset_reset, abitset_set, + abitset_size, abitset_small_list, abitset_subset_p, abitset_test, + abitset_unused_clear, abitset_xor, abitset_xor_cmp, abitset_zero): + Use function prototypes; this removes the need for declaring + static functions simply to provide their prototypes. + * lib/bitset.c (bitset_alloc, bitset_and_or_, bitset_and_or_cmp_, + bitset_andn_or_, bitset_andn_or_cmp_, bitset_bytes, bitset_copy_, + bitset_count_, bitset_create, bitset_dump, bitset_first, + bitset_free, bitset_init, bitset_last, bitset_next, + bitset_obstack_alloc, bitset_obstack_free, bitset_only_set_p, + bitset_op4_cmp, bitset_or_and_, bitset_or_and_cmp_, bitset_prev, + bitset_print, bitset_release_memory, bitset_toggle_, + bitset_type_choose, bitset_type_get, bitset_type_name_get, + debug_bitset): Likewise. + * lib/bitset.h (bitset_set, bitset_reset, bitset_test): Likewise. + * lib/bitset_stats.c (bitset_log_histogram_print, + bitset_percent_histogram_print, bitset_stats_and, + bitset_stats_and_cmp, bitset_stats_and_or, + bitset_stats_and_or_cmp, bitset_stats_andn, bitset_stats_andn_cmp, + bitset_stats_andn_or, bitset_stats_andn_or_cmp, bitset_stats_copy, + bitset_stats_count, bitset_stats_disable, bitset_stats_disjoint_p, + bitset_stats_dump, bitset_stats_empty_p, bitset_stats_enable, + bitset_stats_equal_p, bitset_stats_free, bitset_stats_init, + bitset_stats_list, bitset_stats_list_reverse, bitset_stats_not, + bitset_stats_ones, bitset_stats_or, bitset_stats_or_and, + bitset_stats_or_and_cmp, bitset_stats_or_cmp, bitset_stats_print, + bitset_stats_print_1, bitset_stats_read, bitset_stats_reset, + bitset_stats_set, bitset_stats_size, bitset_stats_subset_p, + bitset_stats_test, bitset_stats_toggle, bitset_stats_type_get, + bitset_stats_write, bitset_stats_xor, bitset_stats_xor_cmp, + bitset_stats_zero): Likewise. + * lib/bitsetv.c (bitsetv_alloc, bitsetv_create, bitsetv_free, + bitsetv_zero, bitsetv_ones, bitsetv_transitive_closure, + bitsetv_dump, debug_bitsetv): Likewise. + * lib/ebitset.c (ebitset_and, ebitset_and_cmp, ebitset_andn, + ebitset_andn_cmp, ebitset_bytes, ebitset_copy, ebitset_copy_, + ebitset_copy_cmp, ebitset_disjoint_p, ebitset_elt_add, + ebitset_elt_alloc, ebitset_elt_calloc, ebitset_elt_find, + ebitset_elt_free, ebitset_elt_last, ebitset_elt_remove, + ebitset_elt_zero_p, ebitset_elts_grow, ebitset_empty_p, + ebitset_equal_p, ebitset_free, ebitset_init, ebitset_list, + ebitset_list_reverse, ebitset_not, ebitset_ones, ebitset_op3_cmp, + ebitset_or, ebitset_or_cmp, ebitset_release_memory, ebitset_reset, + ebitset_set, ebitset_size, ebitset_subset_p, ebitset_test, + ebitset_weed, ebitset_xor, ebitset_xor_cmp, ebitset_zero): + Likewise. + * lib/lbitset.c (debug_lbitset, lbitset_and, lbitset_and_cmp, + lbitset_andn, lbitset_andn_cmp, lbitset_bytes, lbitset_copy, + lbitset_copy_cmp, lbitset_disjoint_p, lbitset_elt_alloc, + lbitset_elt_calloc, lbitset_elt_find, lbitset_elt_free, + lbitset_elt_link, lbitset_elt_unlink, lbitset_elt_zero_p, + lbitset_empty_p, lbitset_equal_p, lbitset_free, lbitset_init, + lbitset_list, lbitset_list_reverse, lbitset_not, lbitset_ones, + lbitset_op3_cmp, lbitset_or, lbitset_or_cmp, lbitset_prune, + lbitset_release_memory, lbitset_reset, lbitset_set, lbitset_size, + lbitset_subset_p, lbitset_test, lbitset_weed, lbitset_xor, + lbitset_xor_cmp, lbitset_zero): Likewise. + +2002-10-14 Akim Demaille + + Version 1.75. + +2002-10-14 Akim Demaille + + * tests/Makefile.am (maintainer-check-posix): New. + +2002-10-14 Akim Demaille + + * data/glr.c [YYDEBUG] (YYLEFTMOST_STATE): Initialize the yyloc + member. + +2002-10-14 Akim Demaille + + * src/tables.c (table_ninf_remap): base -> tab. + Reported by Matt Rosing. + +2002-10-14 Paul Eggert + + * tests/action.at, tests/calc.at, tests/conflicts.at, + tests/cxx-type.at, tests/headers.at, tests/input.at, + tests/regression.at, tests/synclines.at, tests/torture.at: + Say "bison -o foo.c foo.y", not "bison foo.y -o foo.c", + so that the tests still work even if POSIXLY_CORRECT is set. + * doc/bison.texinfo (Rpcalc Compile, Invocation): Likewise. + + * data/c.m4 (b4_int_type): Use yysigned_char instead of signed char, + for portability to K&R hosts. Fix typo: signed char is guaranteed + only to 127, not to 128. + * data/glr.c (yysigned_char): New type. + * data/yacc.c (yysigned_char): Likewise. + * tests/regression.at (Web2c Actions): signed char -> yysigned_char. + +2002-10-13 Paul Eggert + + * data/yacc.c (yyparse): Rewrite to avoid "comparison is always + true due to limited range of data type" warning from GCC. + + * data/c.m4 (b4_token_defines): Protect against double-inclusion + by wrapping enum yytokentype's definition inside #ifndef + YYTOKENTYPE. This undoes a bug I introduced on 2002-10-12. + +2002-10-13 Akim Demaille + + * data/glr.c (yyglrShiftDefer, yyaddDeferredAction, yydoAction): + Un yy- yyrhs to avoid the name clash with the global YYRHS. + +2002-10-13 Akim Demaille + + * Makefile.maint: Update from Autoconf 2.54. + * m4/strerror_r.m4 (AC_FUNC_STRERROR_R): Remove, shipped with 2.54. + +2002-10-13 Akim Demaille + + * src/print.c (print_state): Separate the list of solved conflicts + from the other items. + * tests/conflicts.at (Resolved SR Conflicts): Adjust. + +2002-10-13 Akim Demaille + + Let nondeterministic skeletons be usable with deterministic + tables. + + With the patch, GAWK compiled by GCC without -O2 passes its test + suite using a GLR parser driven by LALR tables. It fails with -O2 + because `struct stat' gives two different answers on my machine: + 88 (definition of an auto var) and later 96 (memset on this var). + Hence the stack is badly corrumpted. The headers inclusion is to + blame: if I move the awk.h inclusion before GLR's system header + inclusion, the two struct stat have the same size. + + * src/tables.c (pack_table): Always create conflict_table. + (token_actions): Always create conflict_list. + * data/glr.c (YYFLAG): Remove, unused. + +2002-10-13 Akim Demaille + + * configure.ac (AC_GNU_SOURCE): Use it instead of hand written code. + (O0FLAGS): New. + (VALGRIND, GXX): New. + * tests/atlocal.in (CFLAGS): Use O0FLAGS. + * tests/bison.in: Run $PREBISON a pre-command. + * tests/Makefile.am (maintainer-check, maintainer-check-valgrind) + (maintainer-check-g++): New. + * Makefile.am (maintainer-check): New. + +2002-10-13 Akim Demaille + + * data/glr.c: Formatting changes. + Tweak some trace messages to match yacc.c's. + +2002-10-13 Akim Demaille + + GLR parsers sometimes raise parse errors instead of performing the + default reduction. + Reported by Charles-Henry de Boysson. + + * tests/calc.at (_AT_CHECK_CALC, _AT_CHECK_CALC_ERROR): Don't + check the length of the traces when %glr. + (_AT_CHECK_CALC_ERROR): Also skip `^Stack' lines, coming from + GLR's traces. + (AT_CHECK_CALC_LALR, AT_CHECK_CALC_GLR): New. + Test GLR parsers. + * data/glr.c (YYLEFTMOST_STATE): Fix its value. + (yyltype): Remove the yy prefix from the member names. + (yytable): Complete its comment. + (yygetLRActions): Map error action number from YYTABLE from + YYTABLE_NINF to 0. + (yyisErrorAction): No longer compare YYACTION to YYPACT_NINF + (which was a bug: it should have been YYTABEL_NINF, and yet it was + not satisfying as we could compare an YYACTION computed from + YYDEFACT to YYTABLE_NINF although they are unrelated): 0 is the + only value for error actions. + (yyreportParseError): In verbose parse error messages, don't issue + `error' in the list of expected tokens. + * data/yacc.c (yyparse) : Rewrite the decoding of the + next action to perform to match glr.c's decoding. + (yytable): Complete its comment. + +2002-10-13 Paul Eggert + + Fix problem reported by Henrik Grubbstroem in + : + "nonterm: { $$ = 123; } { $$ = $1; };" was wrongly rejected, + because the Bison parser reads the second action before reducing + the first one. + * src/scan-gram.l (rule_length): New static var. + Use it to keep track of the rule length in the scanner, since + we can't expect the parser to be in lock-step sync with the scanner. + (handle_action_dollar, handle_action_at): Use this var. + * tests/actions.at (Exotic Dollars): Test for the problem. + +2002-10-12 Paul Eggert + + * lib/timevar.c [! IN_GCC && HAVE_SYS_TIME_H]: Include . + * m4/timevar.m4 (BISON_PREREQ_TIMEVAR): Check for . + Include when checking for clock_t and struct tms. + Use same include order as source. + This is for the SunOS 4.1.4 porting bug reported by Peter Klein in + . + + * lib/timevar.c: Update copyright date and clarify comments. + (get_time) [IN_GCC]: Keep the GCC version for reference. + + * lib/timevar.c, lib/timevar.h, lib/timevar.def: Import + GCC version as of today, then merge Bison's changes. + Change "GCC" to "Bison" in copyright notice. timevar.def's + author is Akim, so change that too. + + * src/reader.c (grammar_current_rule_check): + Don't worry about the default action if $$ is untyped. + Prevents bogus warnings reported by Jim Gifford in + . + + * data/c.m4 (b4_token_enum): Do not define YYTOKENTYPE. + * data/glr.c, data/lalr1.cc, data/yacc.c: + Output token definitions before the first part of user declarations. + Fixes compatibility problem reported by Jim Gifford for kbd in + . + +2002-10-11 Paul Eggert + + * data/yacc.c (yyreport_parse_error): Remove, putting its body into... + (yyparse): here. This undoes some of the 2002-07-25 change. + Compatibility problem reported by Ralf S. Engelschall with + OSSP cfg . + +2002-10-11 Akim Demaille + + * tests/regression.at Characters Escapes): New. + * src/scan-gram.l (SC_ESCAPED_CHARACTER): Accept \' in strings and + characters. + Reported by Jan Nieuwenhuizen. + +2002-10-11 Akim Demaille + + * po/id.po: New. + +2002-10-10 Paul Eggert + + Portability fixes for bitsets; this also avoids several GCC + warnings. + + * lib/abitset.c: Include , for offsetof. + * lib/lbitset.c: Likewise. + + * lib/abitset.c (abitset_bytes): Return a size that is aligned + properly for vectors of objects. Do not assume that adding a + header size to a multiple of a word size yields a value that is + properly aligned for the whole union. + * lib/bitsetv.c (bitsetv_alloc): Likewise. + + * lib/bitset_stats.c (bitset_stats_bytes): Adjust to new, + unique names for structures. + * lib/ebitset.c (ebitset_bytes): Likewise. + * lib/lbitset.c (lbitset_bytes): Likewise. + + * lib/abitset.c (abitset_ones, abitset_zero, abitset_empty_p, + abitset_copy1, abitset_not, abitset_equal_p, abitset_subset_p, + abitset_disjoint_p, abitset_and, abitset_and_cmp, abitset_andn, + abitset_andn_cmp, abitset_or, abitset_or_cmp, abitset_xor, + abitset_xor_cmp, abitset_and_or, abitset_and_or_cmp, + abitset_andn_or, abitset_andn_or_cmp, abitset_or_and, + abitset_or_and_cmp, abitset_copy): Supply prototype decls, + to improve the type-checking that GCC can do. + * lib/bitset.c (bitset_op4_cmp): Likewise. + * lib/bitset_stats.c (bitset_stats_count, + bitset_stats_empty_p, bitset_stats_ones, bitset_stats_zero, + bitset_stats_copy, bitset_stats_disjoint_p, + bitset_stats_equal_p, bitset_stats_not, bitset_stats_subset_p, + bitset_stats_and, bitset_stats_and_cmp, bitset_stats_andn, + bitset_stats_andn_cmp, bitset_stats_or, bitset_stats_or_cmp, + bitset_stats_xor, bitset_stats_xor_cmp, bitset_stats_and_or, + bitset_stats_and_or_cmp, bitset_stats_andn_or, + bitset_stats_andn_or_cmp, bitset_stats_or_and, + bitset_stats_or_and_cmp): Likewise. + * lib/lbitset.c (lbitset_and, lbitset_and_cmp, lbitset_andn, + lbitset_andn_cmp, lbitset_or, lbitset_or_cmp, lbitset_xor, + lbitset_xor_cmp, lbitset_empty_p, lbitset_ones, lbitset_not, + lbitset_subset_p, lbitset_disjoint_p, debug_lbitset): Likewise. + + * lib/abitset.h: Include bitset.h, not bbitset.h. + * lib/ebitset.h: Likewise. + * lib/lbitset.h: Likewise. + + * lib/bbitset.h: (enum_bitset_ops, enum_bitset_type): New types. + All instances of parameters of type enum bitset_opts are now of + type enum_bitset_opts, to conform to the C Standard, and similarly + for enum_bitset_type. + * lib/ebitset.c (enum_ebitset_find_mode): Likewise. + * lib/lbitset.c (enum_lbitset_find_mode): Likewise. + + Do not use "struct bitset_struct" to mean different things in + different modules. Not only is this confusing, it violates + the C Standard, which requires that structure types in different + modules must be compatible if one is to be passed to the other. + * lib/bbitset.h (bitset): Now points to a union, not to a struct. + All instances of "struct bitset_struct *" replaced with "bitset". + * lib/bitset.h (struct bitset_struct): Remove, replacing with.... + (union bitset_union, struct abitset_struct, struct ebitset_struct, + struct lbitset_struct, struct bitset_stats_struct): New types. + All uses of struct bitset_struct changed to union bitset_union, + etc. + * lib/abitset.c (struct abitset_struct, abitset, + struct bitset_struct): Remove. + * lib/bitset_stats.c (struct bitset_stats_struct, bitset_stats, + struct bitset_struct): Remove. + * lib/ebitset.c (struct ebitset_struct, ebitset, struct + bitset_struct): Remove. + * lib/lbitset.c (struct lbitset_struct, lbitset, bitset_struct): + Likewise. + + Do not call a function of type T using a call that assumes the + function is of a different type U. Standard C requires that a + function must be called with a type that is compatible with its + definition. + * lib/bbitset.h (bitset_and_or_, bitset_andn_or_, bitset_or_and_): + New decls. + * lib/bitset.c (bitset_and_or_, bitset_andn_or_, bitset_or_and_): + New functions. + * lib/ebitset.c (PFV): Remove. + * lib/lbitset.c (PFV): Likewise. + * lib/ebitset.c (ebitset_and, ebitset_andn, ebitset_or, + ebitset_xor, ebitset_copy, ebitset_ones, ebitset_empty_p): New + decls. + (ebitset_and, ebitset_andn, ebitset_or, ebitset_xor): New functions. + (ebitset_vtable): Use them. + * lib/lbitset.c (lbitset_and, lbitset_andn, lbitset_or, + lbitset_xor): New functions. + (lbitset_vtable): Use them. + + * lib/bitset.h (bitset_next, bitset_prev, bitset_only_set_p): + Declare. + + * lib/bitsetv.c (bitsetv_alloc): Add a cast to (void *) to avoid a + GCC warning. + * lib/lbitset.c (LBITSET_CURRENT1): Likewise. + Use offsetof, for simplicity. + +2002-10-06 Paul Eggert + + * lib/bitset.h (bitset_reset): Do not assume that bitset_word is + the same width as int. This reapplies a hunk of the 2002-08-12 patch + , + which was inadvertently undone by the 2002-09-30 patch. + * lib/lbitset.c (debug_lbitset): Do not assume that bitset_word is + the same width as int. + +2002-10-04 Paul Eggert + + Version 1.50. + + * configure.ac (AC_INIT), NEWS: Increment version number. + + * doc/bison.texinfo: Minor spelling, grammar, and white space + fixes. + (Symbols): Mention that any negative value returned from yylex + signifies end-of-input. Warn about negative chars. Mention + the portable Standard C character set. + + The GNU coding standard says CFLAGS and YFLAGS are reserved + for the installer to set. + * lib/Makefile.am (AM_CFLAGS): Renamed from CFLAGS. + * src/Makefile.am (AM_CFLAGS): Likewise. + (AM_YFLAGS): Renamed from YFLAGS. + + Fix some MAX and MIN problems. + * src/gram.h (ITEM_NUMBER_MIN): MIN_MAX -> INT_MIN. + * src/lalr.h (GOTO_NUMBER_MAX): INT_MAX -> SHRT_MAX. + * src/symtab.h (SYMBOL_NUMBER_MAX): New macro. + * src/reader.c (reader): Use it. + + * tests/regression.at (Braces parsing): Use grep, not fgrep, as + POSIX 1003.1-2001 has removed fgrep. + +2002-10-04 Michael Hayes + + * lib/bbitset.h (BITSET_WINDEX_MAX): Redefine so that it cannot be + interpreted as signed. + * lib/ebitset.c (ebitset_list): Fix bug. + +2002-10-01 Paul Eggert + + More fixes for 64-bit hosts and large bitsets. + + * lib/abitset.c (struct abitset_struct.n_bits, abitset_small_list, + abitset_size, abitset_list, abitset_list_reverse, abitset_list): + Use bitset_bindex, not int or unsigned int or size_t, to count bits. + * lib/bbitset.h (struct bitset_vtable.size, struct bitset_vtable.count, + struct bitset_vtable.list, struct bitset_vtable.list_reverse, + bitset_count_, bitset_next, bitset_prev, bitset_first, bitset_last, + bitset_count_): Likewise. + * lib/bitset.h (bitset_iterator.num, bitset_iterator.i, + bitset_first, bitset_last): Likewise. + * lib/bitset_stats.c (bitset_stats_size, bitset_stats_list, + bitset_stats_list_reverse, bitset_stats_size, + bitset_stats_count, bitset_stats_list, bitset_stat_list_reverse): + Likewise. + * lib/bitsetv-print.c (bitsetv_matrix_dump): Likewise. + * lib/bitsetv.c (bitsetv_alloc, bitsetv_create, bitsetv_free, + bitsetv_zero, bitsetv_ones, bitsetv_transitive_closure, + bitsetv_reflexive_transitive_closure): Likewise. + * lib/bitsetv.h (bitsetv_alloc, bitsetv_create): Likewise. + * lib/ebitset.c (ebitset_size, ebitset_list, ebitset_list_reverse): + Likewise. + * lib/lbitset.c (lbitset_size, lbitset_list, lbitset_list_merge): + Likewise. + + * lib/abitset.c (abitset_ones, abitset_zero, abitset_bytes): + Use size_t, not unsigned int, to count bytes. + * lib/abitset.h (abitset_bytes): Likewise. + * lib/bitset.c (bitset_bytes, bitset_alloc, bitset_obstack_alloc): + Likewise. + * lib/bitset.h (bitset_bytes): Likewise. + * lib/bitset_stats.c (bitset_stats_bytes, bitset_stats_init): Likewise. + * lib/bitset_stats.h (bitset_stats_bytes): Likewise. + * lib/bitsetv.c (bitsetv_alloc): Likewise. + * lib/ebitset.c (ebitset_bytes): Likewise. + * lib/ebitset.h (ebitset_bytes): Likewise. + * lib/lbitset.c (lbitset_bytes): Likewise. + * lib/lbitset.h (lbitset_bytes): Likewise. + + * lib/abitset.c (abitset_empty_p, abitset_not, abitset_equal_p, + abitset_subset_p, abitset_disjoint_p, abitset_and, + abitset_and_cmp, abitset_andn, abitset_andn_cmp, abitset_or, + abitset_or_cmp, abitset_xor, abitset_xor_cmp, abitset_and_or, + abitset_and_or_cmp, abitset_andn_or, abitset_andn_or_cmp, + abitset_or_and, abitset_or_and_cmp): + Use bitset_windex instead of unsigned int. + * lib/bitsetv.c (bitsetv_dump, debug_bitsetv): Likewise. + * lib/ebitset.c (struct ebitset_struct.size, ebitset_elts_grow, + ebitset_elt_add, ebitset_elt_remove, ebitset_weed, + ebitset_elt_find, ebitset_list_reverse, ebitset_list, ebitset_init): + Likewise. + * lib/lbitset.c (lbitset_ones, lbitset_not): Likewise. + + * lib/bitset.c (bitset_print): + Use proper printf formats for widths of integer types. + * lib/bitset_stats.c (bitset_percent_histogram_print, + bitset_log_histogram_print, bitset_stats_print_1): Likewise. + * lib/bitsetv-print.c (bitsetv_matrix_dump): Likewise. + * lib/bitsetv.c (bitsetv_dump, debug_bitsetv): Likewise. + * lib/lbitset.c (lbitset_bytes): Likewise. + + * lib/bbitset.h (BITSET_BINDEX_MAX, BITSET_WINDEX_MAX, + BITSET_SIZE_MAX): New macros. + (BITSET_INDEX_MAX): Remove. It wasn't right, since it assumed that + sizeof (bitset_word) == sizeof (bitset_windex). All uses changed + to BITSET_WINDEX_MAX. + + * lib/bitset.c (bitset_next, bitset_prev, bitset_first, + bitset_last): Return BITSET_BINDEX_MAX (not -1) for no value, + since we now return the bitset_bindex type (not int). + + * lib/bitsetv.c (bitsetv_alloc): Check for arithmetic overflow + when computing sizes. + * lib/ebitset.c (ebitset_elts_grow): Likewise. + + * lib/lbitset.c (lbitset_elt_find): Simplify windex calculation + and avoid cast to unsigned. + +2002-09-30 Akim Demaille + + * lib/abitset.c, lib/bbitset.h, lib/bitset.c, lib/bitset.h, + * lib/bitset_stats.c, lib/bitsetv.c, lib/ebitset.c, lib/lbitset.c: + Updates from Michael Hayes. + +2002-09-30 Art Haas + + * configure.ac: Update AC_OUTPUT and AM_CONFIG_HEADER + invocations. + * tests/cxx-type.at (declarator): Don't rely on NDEBUG being not + defined. + +2002-09-27 Akim Demaille + + Version 1.49c. + +2002-09-27 Akim Demaille + + * configure.ac (AM_INIT_AUTOMAKE): We _need_ 1.7. + (Because of AC_LIBSOURCE). + +2002-09-27 Akim Demaille + + Playing with Autoscan. + + * configure.ac: Remove the old LIBOBJ tweaks. + (AC_REPLACE_FUNCS): Add strrchr and strtol. + * lib/strrchr.c: New. + * lib/strtol.c: New, from the Coreutils 4.5.1. + +2002-09-27 Akim Demaille + + Playing with Autoscan. + + * m4/prereq.m4 (jm_PREREQ_ARGMATCH, jm_FUNC_ARGMATCH): New. + * lib/Makefile.am (libbison_a_SOURCES): No longer include + argmatch.c and argmatch.h, since they are AC_LIBSOURCE'd. + * lib/strcasecmp.c, lib/strncasecmp.c, lib/memcmp.c: New, from the + Coreutils 4.5.1. + +2002-09-24 Akim Demaille + + * doc/bison.texinfo (Stack Overflow): xref to Recursion. + (Frequently Asked Questions, Parser Stack Overflow): New. + +2002-09-13 Akim Demaille + + Playing with autoscan. + + * src/reader.c (get_merge_function): Use xstrdup, not strdup. + * src/files.c (skeleton_find): Remove, unused. + * m4/memcmp.m4: New, from the Coreutils 4.5.1. + * m4/prereq.m4 (jm_PREREQ_QUOTEARG): Run jm_FUNC_MEMCMP. + +2002-09-13 Akim Demaille + + * configure.ac (AM_INIT_AUTOMAKE): Require Automake 1.6.3. + * Makefile.am (AUTOMAKE_OPTIONS): Don't. + +2002-09-13 Akim Demaille + + * configure.ac: Require 2.54. + s/jm_FUNC_MALLOC/AC_FUNC_MALLOC/. + s/jm_FUNC_REALLOC/AC_FUNC_REALLOC/. + * m4/c-bs-a.m4, m4/malloc.m4, m4/mbstate_t.m4, m4/realloc.m4: + Remove, provided by Autoconf macros. + +2002-09-12 Akim Demaille + + * m4/prereq.m4: Update, from Coreutils 4.5.1. + 2002-09-12 Akim Demaille * m4/prereq.m4: Update, from Fileutils 4.1.5.