+2002-07-31 Akim Demaille <akim@epita.fr>
+
+ Steal GCC's --time-report support.
+
+ * lib/timevar.c, lib/timevar.h, lib/timevar.def: New,
+ stolen/adjusted from GCC.
+ * m4/stage.m4: Remove time related checks.
+ * m4/timevar.m4: New.
+ * configure.in: Adjust.
+ * src/system.h: Adjust to using timevar.h.
+ * src/getargs.h, src/getargs.c: Support trace_time for
+ --trace=time.
+ * src/main.c (stage): Remove.
+ (main): Replace `stage' invocations with timevar calls.
+ * src/output.c: Insert pertinent timevar calls.
+
+2002-07-31 Akim Demaille <akim@epita.fr>
+
+ Let --trace have arguments.
+
+ * src/getargs.h (enum trace_e): New.
+ * src/getargs.c (trace_args, trace_types, trace_argmatch): New.
+ (long_options, short_options): --trace/-T takes an optional
+ argument.
+ Change all the uses of trace_flag to reflect the new flags.
+ * tests/sets.at (Firsts, Nullable, Broken Closure): Use --trace=sets.
+
+ Strengthen `stage' portability.
+
+ * m4/stage.m4 (BISON_PREREQ_STAGE): New.
+ * configure.in: Use it.
+ Don't check for malloc.h and sys/times.h.
+ * src/system.h: Include them when appropriate.
+ * src/main.c (stage): Compile only when mallinfo, struct mallinfo,
+ times and struct tms are available.
+
+2002-07-30 Akim Demaille <akim@epita.fr>
+
+ In verbose parse error message, don't report `error' as an
+ expected token.
+ * tests/actions.at (Printers and Destructors): Adjust.
+ * tests/calc.at (Calculator $1): Adjust.
+ * data/yacc.c, data/glr.c, data/lalr1.c: When making the verbose
+ error message, do not report the parser accepts the error token in
+ that state.
+
+2002-07-30 Akim Demaille <akim@epita.fr>
+
+ Normalize conflict related messages.
+
+ * src/complain.h, src/complain.c (warn, complain): New.
+ * src/conflicts.c (conflicts_print): Use them.
+ (conflict_report_yacc): New, extracted from...
+ (conflicts_print): here.
+ * tests/conflicts.at, tests/existing.at: Adjust.
+
+2002-07-30 Akim Demaille <akim@epita.fr>
+
+ Report rules which are never reduced by the parser: those hidden
+ by conflicts.
+
+ * src/LR0.c (save_reductions): Don't make the final state too
+ different: save its reduction (accept) instead of having a state
+ without any action (no shift or goto, no reduce).
+ Note: the final state is now a ``regular'' state, i.e., the
+ parsers now contain `reduce 0' as default reduction.
+ Nevertheless, since they decide to `accept' when yystate =
+ final_state, they still will not reduce rule 0.
+ * src/print.c (print_actions, print_reduction): Adjust.
+ * src/output.c (action_row): Track reduced rules.
+ (token_actions): Report rules never reduced.
+ * tests/conflicts.at, tests/regression.at: Adjust.
+
+2002-07-30 Akim Demaille <akim@epita.fr>
+
+ `stage' was accidently included in a previous patch.
+ Initiate its autoconfiscation.
+
+ * configure.in: Look for malloc.h and sys/times.h.
+ * src/main.c (stage): Adjust.
+ Report only when trace_flag.
+
+2002-07-29 Akim Demaille <akim@epita.fr>
+
+ * src/state.h, src/state.c (transitions_t): Holds state_t*'s, not
+ state_number_t.
+ (errs_t): symbol_t*, not symbol_number_t.
+ (reductions_t): rule_t*, not rule_number_t.
+ (FOR_EACH_SHIFT): New.
+ * src/LR0.c, src/conflicts.c, src/lalr.c, src/output.c
+ * src/print.c, src/print_graph.c: Adjust.
+
+2002-07-29 Akim Demaille <akim@epita.fr>
+
+ Use $accept and $end, as BYacc and BTYacc do, instead of $axiom and $.
+
+ * src/symtab.h, src/symtab.c (eoftoken, axiom): Rename as...
+ (endtoken, accept): these.
+ * src/reader.c (reader): Set endtoken's default tag to "$end".
+ Set undeftoken's tag to "$undefined" instead of "$undefined.".
+ * doc/bison.texinfo (Table of Symbols): Mention $accept and $end.
+ Adjust.
+
+2002-07-29 Akim Demaille <akim@epita.fr>
+
+ * src/reduce.c (reduce_grammar): When the language is empty,
+ complain about the start symbol, not the axiom.
+ Use its location.
+ * tests/reduce.at (Empty Language): New.
+
+2002-07-26 Akim Demaille <akim@epita.fr>
+
+ * src/reader.h, src/reader.c (gram_error): ... can't get
+ yycontrol without making too strong assumptions on the parser
+ itself.
+ * src/output.c (prepare_tokens): Use the real 0th value of
+ token_translations instead of `0'.
+ * src/parse-gram.y (yyerror): Don't rely on yycontrol being
+ visible here.
+ * data/yacc.c (yyreport_parse_error): Rename yylocation as yylloc
+ for the time being: %locations ought to provide it to yyerror.
+
+2002-07-25 Akim Demaille <akim@epita.fr>
+
+ * src/output.c (prepare_tokens): Go up to ntokens, not ntokens + 1.
+ * doc/bison.texinfo (Decl Summary): s/$illegal/$undefined./.
+ * tests/regression.at (Web2c Actions): Adjust.
+
+2002-07-25 Akim Demaille <akim@epita.fr>
+
+ Stop storing rules from 1 to nrules + 1.
+
+ * src/LR0.c, src/closure.c, src/derives.c, src/gram.c, src/lalr.c
+ * src/nullable.c, src/output.c, src/print.c, src/reader.c
+ * src/reduce.c: Allocate and free from &rules[0], not &rules[1].
+ Iterate from 0 to nrules.
+ Use rule_number_as_item_number and item_number_as_rule_number.
+ Adjust to `derive' now containing possibly 0.
+ * src/gram.h (rule_number_as_item_number, item_number_as_rule_number):
+ Handle the `- 1' part in rule numbers from/to item numbers.
+ * src/conflicts.c (log_resolution): Fix the message which reversed
+ shift and reduce.
+ * src/output.c (action_row): Initialize default_rule to -1.
+ (token_actions): Adjust.
+ * tests/sets.at (Nullable, Firsts): Fix the previously bogus
+ expected output.
+ * tests/conflicts.at (Resolved SR Conflicts): Likewise.
+
+2002-07-25 Akim Demaille <akim@epita.fr>
+
+ * data/c.m4 (b4_c_function, b4_c_ansi_args, b4_c_ansi_arg)
+ (b4_c_knr_arg_names, b4_c_knr_arg_name, b4_c_knr_arg_decls)
+ (b4_c_knr_arg_decl): New.
+ * data/yacc.c: Use it to define yysymprint, yydestruct, and
+ yyreport_parse_error.
+
+2002-07-25 Akim Demaille <akim@epita.fr>
+
+ * data/yacc.c (yyreport_parse_error): New, extracted from...
+ (yyparse): here.
+ (yydestruct, yysymprint): Move above yyparse.
+ Be K&R compliant.
+
+2002-07-25 Akim Demaille <akim@epita.fr>
+
+ * data/c.m4 (b4_ints_in, b4_int_type, b4_int_type_for): New,
+ replace...
+ (b4_sint_type, b4_uint_type): these.
+ * data/yacc.c, data/glr.c, data/lalr1.cc: Use b4_int_type_for.
+ * tests/regression.at (Web2c Actions): Adjust.
+
+2002-07-25 Akim Demaille <akim@epita.fr>
+
+ * src/gram.h (TIEM_NUMBER_MAX): New.
+ (item_number_of_rule_number, rule_number_of_item_number): Rename
+ as...
+ (rule_number_as_item_number, item_number_as_rule_number): these.
+ Adjust dependencies.
+ * src/output.c (vector_number_t, VECTOR_NUMBER_MAX)
+ (VECTOR_NUMBER_MIN, state_number_to_vector_number)
+ (symbol_number_to_vector_number): New.
+ (order): Of vector_number_t* type.
+ (base_t, BASE_MAX, BASE_MIN): New.
+ (froms, tos, width, pos, check): Of base_t type.
+ (action_number_t, ACTION_MIN, ACTION_MAX): New.
+ (actrow): Of action_number_t type.
+ (conflrow): Of unsigned int type.
+ (table_ninf, base_ninf): New.
+ (GENERATE_MUSCLE_INSERT_TABLE): Also output the `*_min' value.
+ (muscle_insert_int_table, muscle_insert_base_table)
+ (muscle_insert_rule_number_table): New.
+ (prepare_tokens): Output `toknum' as int_table.
+ (action_row): Returns a rule_number_t.
+ Use ACTION_MIN, not SHRT_MIN.
+ (token_actions): yydefact is rule_number_t*.
+ (table_ninf_remap): New.
+ (pack_table): Use it for `base' and `table'.
+ * data/yacc.c, data/glr.c, data/lalr1.cc (YYFLAG): Remove,
+ replaced with...
+ (YYPACT_NINF, YYTABLE_NINF): these.
+ (yypact, yytable): Compute their types instead of hard-coded
+ `short'.
+ * tests/regression.at (Web2c Actions): Adjust.
+
+2002-07-19 Akim Demaille <akim@epita.fr>
+
+ * src/scan-gram.l (id): Can start with an underscore.
+
+2002-07-16 Akim Demaille <akim@epita.fr>
+
+ * src/assoc.c, src/asssoc.h (assoc_t, assoc_to_string): New.
+ Adjust all former `associativity' dependencies.
+ * src/symtab.c (symbol_new): Default associativity is `undef', not
+ `right'.
+ (symbol_check_alias_consistence): Adjust.
+
+2002-07-09 Akim Demaille <akim@epita.fr>
+
+ * doc/bison.texinfo: Properly set the ``header'' part.
+ Use @dircategory ``GNU programming tools'' as per Texinfo's
+ documentation.
+ Use @copying.
+
+2002-07-09 Akim Demaille <akim@epita.fr>
+
+ * lib/quotearg.h: Protect against multiple inclusions.
+ * src/location.h (location_t): Add a `file' member.
+ (LOCATION_RESET, LOCATION_PRINT): Adjust.
+ * src/complain.c (warn_at, complain_at, fatal_at): Drop
+ `error_one_per_line' support.
+
+2002-07-09 Akim Demaille <akim@epita.fr>
+
+ * src/complain.h, src/complain.c (warn, complain): Remove, unused.
+ * src/reader.c (lineno): Remove.
+ Adjust all dependencies.
+ (get_merge_function): Take a location and use complain_at.
+ * src/symtab.h, src/symtab.c (symbol_make_alias): Likewise.
+ * tests/regression.at (Invalid inputs, Mixing %token styles):
+ Adjust.
+
+2002-07-09 Akim Demaille <akim@epita.fr>
+
+ * src/parse-gram.y (rules_or_grammar_declaration): Add an error
+ recovery rule, and forbid extensions when --yacc.
+ (gram_error): Use complain_at.
+ * src/reader.c (reader): Exit if there were parse errors.
+
+2002-07-09 Akim Demaille <akim@epita.fr>
+
+ * tests/synclines.at (AT_SYNCLINES_COMPILE): New.
+ (AT_TEST_SYNCLINE): Adjust to unusual GCC outputs.
+ Reported by R Blake <blakers@mac.com>.
+
+2002-07-09 Akim Demaille <akim@epita.fr>
+
+ * data/yacc.c: Output the copyright notive in the header.
+
+2002-07-03 Akim Demaille <akim@epita.fr>
+
+ * src/output.c (froms, tos): Are state_number_t.
+ (save_column): sp, sp1, and sp2 are state_number_t.
+ (prepare): Rename `final' as `final_state_number', `nnts' as
+ `nterms_number', `nrules' as `rules_number', `nstates' as
+ `states_number', and `ntokens' as `tokens_number'. Remove `nsym',
+ unused.
+ * data/yacc.c, data/glr.c, data/lalr1.cc: Adjust.
+ * data/lalr1.cc (nsym_): Remove, unused.
+
+2002-07-03 Akim Demaille <akim@epita.fr>
+
+ * src/lalr.h, src/lalr.c (goto_number_t): New.
+ * src/lalr.c (goto_list_t): New.
+ Propagate them.
+ * src/nullable.c (rule_list_t): New.
+ Propagate.
+ * src/types.h: Remove.
+
+2002-07-03 Akim Demaille <akim@epita.fr>
+
+ * src/closure.c (print_fderives): Use rule_rhs_print.
+ * src/derives.c (print_derives): Use rule_rhs_print.
+ (rule_list_t): New, replaces `shorts'.
+ (set_derives): Add comments.
+ * tests/sets.at (Nullable, Firsts): Adjust.
+
+2002-07-03 Akim Demaille <akim@epita.fr>
+
+ * src/output.c (prepare_actions): Free `tally' and `width'.
+ (prepare_actions): Allocate and free `order'.
+ * src/symtab.c (symbols_free): Free `symbols'.
+ * src/scan-gram.l (scanner_free): Clear Flex's scanners memory.
+ * src/output.c (m4_invoke): Move to...
+ * src/scan-skel.l: here.
+ (<<EOF>>): Close yyout, and free its name.
+
+2002-07-03 Akim Demaille <akim@epita.fr>
+
+ Fix some memory leaks, and fix a bug: state 0 was examined twice.
+
+ * src/LR0.c (new_state): Merge into...
+ (state_list_append): this.
+ (new_states): Merge into...
+ (generate_states): here.
+ (set_states): Don't ensure a proper `errs' state member here, do it...
+ * src/conflicts.c (conflicts_solve): here.
+ * src/state.h, src/state.c: Comment changes.
+ (state_t): Rename member `shifts' as `transitions'.
+ Adjust all dependencies.
+ (errs_new): For consistency, also take the values as argument.
+ (errs_dup): Remove.
+ (state_errs_set): New.
+ (state_reductions_set, state_transitions_set): Assert that no
+ previous value was assigned.
+ (state_free): New.
+ (states_free): Use it.
+ * src/conflicts.c (resolve_sr_conflict): Don't use an `errs_t' as
+ temporary storage: use `errs' and `nerrs' as elsewhere.
+ (set_conflicts): Allocate and free this `errs'.
+
+2002-07-02 Akim Demaille <akim@epita.fr>
+
+ * lib/libiberty.h: New.
+ * lib: Update the bitset implementation from upstream.
+ * src/closure.c, src/lalr.c, src/output.c, src/print_graph.c,
+ * src/state.c: Use BITSET_FOR_EACH, not BITSET_EXECUTE.
+ * src/main.c: Adjust bitset stats calls.
+
+2002-07-01 Paul Eggert <eggert@twinsun.com>
+
+ * src/scan-gram.l (<SC_ESCAPED_CHARACTER>): Convert to unsigned
+ char, so that negative chars don't collide with $.
+
+2002-06-30 Akim Demaille <akim@epita.fr>
+
+ Have the GLR tests be `warning' checked, and fix the warnings.
+
+ * data/glr.c (YYFPRINTF): Always define it, not only when YYDEBUG
+ (yyuserAction, yyreportAmbiguity): `Use' all the arguments.
+ (yyremoveDeletes): `yyi' and `yyj' are size_t.
+ Use YYFPRINTF when under if (YYDEBUG) to avoid empty `if' bodies.
+ (yyaddDeferredAction): static.
+ (yyglrReduce): yyi, yyk, amd yyposn are size_t.
+ (yyreportParseError): yyprefix is const.
+ yytokenp is used only when verbose.
+ (yy__GNUC__): Replace with __GNUC__.
+ (yypdumpstack): yyi is size_t.
+ (yypreference): Un-yy local variables and arguments, to avoid
+ clashes with `yyr1'. Anyway, we are not in the user name space.
+ (yytname_size): be an int, as is compared with ints.
+ * tests/testsuite.at (AT_COMPILE, AT_PARSER_CHECK): New.
+ Use them.
+ * tests/cxx-gram.at: Use quotation to protect $1.
+ Use AT_COMPILE to enable warnings hunts.
+ Prototype yylex and yyerror.
+ `Use' argc.
+ Include `string.h', not `strings.h'.
+ Produce and prototype stmtMerge only when used.
+ yylex takes a location.
+
+2002-06-30 Akim Demaille <akim@epita.fr>
+
+ We spend a lot of time in quotearg, in particular when --verbose.
+
+ * src/symtab.c (symbol_get): Store a quoted version of the key.
+ (symbol_tag_get, symbol_tag_get_n, symbol_tag_print): Remove.
+ Adjust all callers.
+
+2002-06-30 Akim Demaille <akim@epita.fr>
+
+ * src/state.h (reductions_t): Rename member `nreds' as num.
+ (errs_t): Rename members `nerrs' and `errs' as `num' and `symbols'.
+ * src/state.c (ERRS_ALLOC, REDUCTIONS_ALLOC): Use the correct types.
+
+2002-06-30 Akim Demaille <akim@epita.fr>
+
+ * src/state.h, src/state.c (shift_t, SHIFT_SYMBOL, SHIFT_IS_SHIFT)
+ (SHIFT_IS_GOTO, SHIFT_IS_ERROR, SHIFT_DISABLE, SHIFT_IS_DISABLED)
+ (shifts_to): Rename as...
+ (transition_t, TRANSITION_SYMBOL, TRANSITION_IS_TRANSITION)
+ (TRANSITION_IS_GOTO, TRANSITION_IS_ERROR, TRANSITION_DISABLE)
+ (TRANSITION_IS_DISABLED, transitions_to): these.
+
+2002-06-30 Akim Demaille <akim@epita.fr>
+
+ * src/print.c (print_shifts, print_gotos): Merge into...
+ (print_transitions): this.
+ (print_transitions, print_errs, print_reductions): Align the
+ lookaheads columns.
+ (print_core, print_transitions, print_errs, print_state,
+ print_grammar): Output empty lines separator before, not after.
+ (state_default_rule_compute): Rename as...
+ (state_default_rule): this.
+ * tests/conflicts.at (Defaulted Conflicted Reduction),
+ (Unresolved SR Conflicts, Resolved SR Conflicts): Adjust.
+ * tests/regression.at (Rule Line Numbers, Web2c Report): Adjust.
+
+2002-06-30 Akim Demaille <akim@epita.fr>
+
+ Display items as we display rules.
+
+ * src/gram.h, src/gram.c (rule_lhs_print): New.
+ * src/gram.c (grammar_rules_partial_print): Use it.
+ * src/print.c (print_core): Likewise.
+ * tests/conflicts.at (Defaulted Conflicted Reduction),
+ (Unresolved SR Conflicts): Adjust.
+ (Unresolved SR Conflicts): Adjust and rename as...
+ (Resolved SR Conflicts): this, as was meant.
+ * tests/regression.at (Web2c Report): Adjust.
+
+2002-06-30 Akim Demaille <akim@epita.fr>
+
+ * src/print.c (state_default_rule_compute): New, extracted from...
+ (print_reductions): here.
+ Pessimize, but clarify the code.
+ * tests/conflicts.at (Defaulted Conflicted Reduction): New.
+
+2002-06-30 Akim Demaille <akim@epita.fr>
+
+ * src/output.c (action_row): Let default_rule be always a rule
+ number.
+
+2002-06-30 Akim Demaille <akim@epita.fr>
+
+ * src/closure.c (print_firsts, print_fderives, closure):
+ Use BITSET_EXECUTE.
+ * src/lalr.c (lookaheads_print): Likewise.
+ * src/state.c (state_rule_lookaheads_print): Likewise.
+ * src/print_graph.c (print_core): Likewise.
+ * src/print.c (print_reductions): Likewise.
+ * src/output.c (action_row): Likewise.
+ Use SHIFT_IS_DISABLED, SHIFT_IS_SHIFT and SHIFT_SYMBOL.
+
+2002-06-30 Akim Demaille <akim@epita.fr>
+
+ * src/print_graph.c: Use report_flag.
+
+2002-06-30 Akim Demaille <akim@epita.fr>
+
+ * src/lalr.c (traverse, digraph, matrix_print, transpose): Move
+ to...
+ * src/relation.h, src/relation.c (traverse, relation_digraph)
+ (relation_print, relation_transpose): New.
+
+2002-06-30 Akim Demaille <akim@epita.fr>
+
+ * src/state.h, src/state.c (shifts_to): New.
+ * src/lalr.c (build_relations): Use it.
+
+2002-06-30 Akim Demaille <akim@epita.fr>
+
+ * src/gram.h (rule_number_t, RULE_NUMBER_MAX, int_of_rule_number)
+ (item_number_of_rule_number, rule_number_of_item_number): New.
+ * src/LR0.c, src/closure.c, src/derives.c, src/derives.h,
+ * src/gram.c, src/lalr.c, src/nullable.c, src/output.c, src/print.c,
+ * src/print_graph.c, src/reader.c, src/reduce.c, src/reduce.h:
+ Propagate their use.
+ Much remains to be done, in particular wrt `shorts' from types.h.
+
+2002-06-30 Akim Demaille <akim@epita.fr>
+
+ * src/symtab.c (symbol_new): Initialize the `printer' member.
+
+2002-06-30 Akim Demaille <akim@epita.fr>
+
+ * src/LR0.c (save_reductions): Remove, replaced by...
+ * src/state.h, src/state.c (state_reductions_set): New.
+ (reductions, errs): Rename as...
+ (reductions_t, errs_t): these.
+ Adjust all dependencies.
+
+2002-06-30 Akim Demaille <akim@epita.fr>
+
+ * src/LR0.c (state_list_t, state_list_append): New.
+ (first_state, last_state): Now symbol_list_t.
+ (this_state): Remove.
+ (new_itemsets, append_states, save_reductions): Take a state_t as
+ argument.
+ (set_states, generate_states): Adjust.
+ (save_shifts): Remove, replaced by...
+ * src/state.h, src/state.c (state_shifts_set): New.
+ (shifts): Rename as...
+ (shifts_t): this.
+ Adjust all dependencies.
+ * src/state.h (state_t): Remove the `next' member.
+
+2002-06-30 Akim Demaille <akim@epita.fr>
+
+ * src/vcg.c (quote): Use slot 2, since we often pass symbol tag
+ escaped in slot 0.
+
+2002-06-30 Akim Demaille <akim@epita.fr>
+
+ Use hash.h for the state hash table.
+
+ * src/LR0.c (STATE_HASH_SIZE, state_hash): Remove.
+ (allocate_storage): Use state_hash_new.
+ (free_storage): Use state_hash_free.
+ (new_state, get_state): Adjust.
+ * src/lalr.h, src/lalr.c (states): Move to...
+ * src/states.h (state_t): Remove the `link' member, no longer
+ used.
+ * src/states.h, src/states.c: here.
+ (state_hash_new, state_hash_free, state_hash_lookup)
+ (state_hash_insert, states_free): New.
+ * src/states.c (state_table, state_compare, state_hash): New.
+ * src/output.c (output_actions): Do not free states now, since we
+ still need to know the final_state number in `prepare', called
+ afterwards. Do it...
+ * src/main.c (main): here: call states_free after `output'.
+
+2002-06-30 Akim Demaille <akim@epita.fr>
+
+ * src/state.h, src/state.c (state_new): New, extracted from...
+ * src/LR0.c (new_state): here.
+ * src/state.h (STATE_ALLOC): Move to...
+ * src/state.c: here.
+ * src/LR0.h, src/LR0.c (nstates, final_state): Move to...
+ * src/state.h, src/state.c: here.
+
+2002-06-30 Akim Demaille <akim@epita.fr>
+
+ * src/reader.c (gensym): Rename as...
+ * src/symtab.h, src/symtab.c (dummy_symbol_get): this.
+ (getsym): Rename as...
+ (symbol_get): this.
+
+2002-06-30 Akim Demaille <akim@epita.fr>
+
+ * src/state.h (state_number_t, STATE_NUMBER_MAX): New.
+ * src/LR0.c, src/LR0.h, src/conflicts.c, src/lalr.c, src/lalr.h,
+ * src/output.c, src/print.c, src/print_graph.c: Propagate.
+ * src/LR0.h, src/LR0.h (final_state): Is a state_t*.
+
+2002-06-30 Akim Demaille <akim@epita.fr>
+
+ Make the test suite pass with warnings checked.
+
+ * tests/actions.at (Printers and Destructors): Improve.
+ Avoid unsigned vs. signed issues.
+ * tests/calc.at: Don't exercise the scanner here, do it...
+ * tests/input.at (Torturing the Scanner): here.
+
+2002-06-28 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
+
+ * data/glr.c: Correct typo in Emacs-mode directive. Slightly
+ reorganize first lines parallel to yacc.c.
+
+2002-06-28 Akim Demaille <akim@epita.fr>
+
+ * data/c.m4 (b4_copyright, b4_sint_type, b4_uint_type, b4_token_define)
+ (b4_token_enum, b4_token_defines): New, factored from...
+ * data/lalr1.cc, data/yacc.c, glr.c: here.
+
+2002-06-28 Akim Demaille <akim@epita.fr>
+
+ * data/yacc.c (yydestruct, yysymprint): Pacify GCC warnings for
+ unused variables.
+ * src/output.c (merger_output): static.
+
+2002-06-28 Akim Demaille <akim@epita.fr>
+
+ * src/reader.h: s/grammer_current_rule_merge_set/grammar_.../.
+ * src/conflicts.c (conflicts_total_count): `i' is unsigned, to
+ pacify GCC.
+ * src/output.c (save_row): Initialize all the variables to pacify GCC.
+
+2002-06-27 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
+
+ Accumulated changelog for new GLR parsing features.
+
+ * src/conflicts.c (count_total_conflicts): Change name to
+ conflicts_total_count.
+ * src/conflicts.h: Ditto.
+ * src/output.c (token_actions): Use the new name.
+ (output_conflicts): Change conflp => conflict_list_heads, and
+ confl => conflict_list for better readability.
+ * data/glr.c: Use the new names.
+ * NEWS: Add self to GLR announcement.
+
+ * src/reader.c (free_merger_functions): Cleanup: XFREE->free.
+
+ * doc/bison.texinfo (GLR Parsers): Make corrections suggested by
+ Akim Demaille.
+
+ * data/bison.glr: Change name to glr.c
+ * data/glr.c: Renamed from bison.glr.
+ * data/Makefile.am: Add glr.c
+
+ * src/getargs.c:
+
+ * src/symlist.h: Add dprec and merger fields to symbol_list_s.
+ * src/symlist.c (symbol_list_new): Initialize dprec and merger fields.
+
+ Originally 2002-06-16 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
+
+ * data/bison.glr: Be sure to restore the
+ current #line when returning to the skeleton contents after having
+ exposed the input file's #line.
+
+ Originally 2002-06-13 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
+
+ * data/bison.glr: Bring up to date with changes to bison.simple.
+
+ Originally 2002-06-03 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
+
+ * data/bison.glr: Correct definitions that use b4_prefix.
+ Various reformatting.
+ (GLRStack): Make yychar (in YYPURE case) and yytokenp as part of stack.
+ (yyreportParseError, yyrecoverParseError, yyprocessOneStack): remove
+ yytokenp argument; now part of stack.
+ (yychar): Define to behave as documented.
+ (yyclearin): Ditto.
+
+ Originally 2002-05-14 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
+
+ * src/reader.h: Add declaration for free_merger_functions.
+
+ * src/reader.c (merge_functions): New variable.
+ (get_merge_function): New function.
+ (free_merger_functions): New function.
+ (readgram): Check for %prec that is not followed by a symbol.
+ Handle %dprec and %merge declarations.
+ (packgram): Initialize dprec and merger fields in rules array.
+
+ * src/output.c (conflict_tos, conflrow, conflict_table, conflict_list,
+ conflict_list_cnt, conflict_list_free): New variables.
+ (table_grow): Also grow conflict_table.
+ (prepare_rules): Output dprec and merger tables.
+ (conflict_row): New function.
+ (action_row): Output conflict lists for GLR parser. Don't use
+ default reduction in conflicted states for GLR parser so that there
+ are spaces for the conflict lists.
+ (save_row): Also save conflict information.
+ (token_actions): Allocate conflict list.
+ (merger_output): New function.
+ (pack_vector): Pack conflict table, too.
+ (output_conflicts): New function to output yyconflp and yyconfl.
+ (output_check): Allocate conflict_tos.
+ (output_actions): Output conflict tables, also.
+ (output_skeleton): Output b4_mergers definition.
+ (prepare): Output b4_max_rhs_length definition.
+ Use 'bison.glr' as default skeleton for GLR parsers.
+
+ * src/gram.c (glr_parser): New flag.
+ (grammar_free): Call free_merger_functions.
+
+ * src/conflicts.c (count_rr_conflicts): Augment to optionally count
+ all pairs of conflicting reductions, rather than just all tokens
+ causing conflicts. Needed to size conflict tables.
+ (conflicts_output): Modify call to count_rr_conflicts for new
+ interface.
+ (conflicts_print): Ditto.
+ (count_total_conflicts): New function.
+
+ * src/reader.h (merger_list): New type.
+ (merge_functions): New variable.
+
+ * src/lex.h (tok_dprec, tok_merge): New token types.
+
+ * src/gram.h (rule_s): Add dprec and merger fields.
+ (glr_parser): New flag.
+
+ * src/conflicts.h (count_total_conflicts): New function.
+
+ * src/options.c (option_table): Add %dprec, %merge, and %glr-parser.
+
+ * doc/bison.texinfo (Generalized LR Parsing): New section.
+ (GLR Parsers): New section.
+ (Language and Grammar): Mention GLR parsing.
+ (Table of Symbols): Add %dprec, %glr-parser, %merge, GLR
+ Correct typo ("tge" -> "the").
+
+ * data/bison.glr: New skeleton for GLR parsing.
+
+ * tests/cxx-gram.at: New tests for GLR parsing.
+
+ * tests/testsuite.at: Include cxx-gram.at.
+
+ * tests/Makefile.am: Add cxx-gram.at.
+
+ * src/parse-gram.y:
+
+ * src/scan-gram.l: Add %dprec, %glr-parser, %merge.
+
+ * src/parse-gram.y: Grammar for %dprec, %merge, %glr-parser.
+
+2002-06-27 Akim Demaille <akim@epita.fr>
+
+ * src/options.h, src/options.c: Remove.
+ * src/getargs.c (short_options, long_options): New.
+
+2002-06-27 Akim Demaille <akim@epita.fr>
+
+ * data/bison.simple, data/bison.c++: Rename as...
+ * data/yacc.c, data/lalr1.cc: these.
+ * doc/bison.texinfo (Environment Variables): Remove.
+
+2002-06-25 Raja R Harinath <harinath@cs.umn.edu>
+
+ * src/getargs.c (report_argmatch): Initialize strtok().
+
+2002-06-20 Akim Demaille <akim@epita.fr>
+
+ * data/bison.simple (b4_symbol_actions): New, replaces...
+ (b4_symbol_destructor, b4_symbol_printer): these.
+ (yysymprint): Be sure to call YYPRINT only for tokens, and using
+ user token numbers.
+
+2002-06-20 Akim Demaille <akim@epita.fr>
+
+ * data/bison.simple (yydestructor): Rename as...
+ (yydestruct): this.
+
+2002-06-20 Akim Demaille <akim@epita.fr>
+
+ * src/symtab.h, src/symtab.c (symbol_type_set)
+ (symbol_destructor_set, symbol_precedence_set): The location is
+ the last argument.
+ Adjust all callers.
+
+2002-06-20 Akim Demaille <akim@epita.fr>
+
+ * src/parse-gram.y (YYPRINT, yyprint): Don't mess with the parser
+ internals.
+ * src/reader.h, src/reader.c (grammar_current_rule_prec_set):
+ Takes a location.
+ * src/symtab.h, src/symtab.c (symbol_class_set)
+ (symbol_user_token_number_set): Likewise.
+ Adjust all callers.
+ Promote complain_at.
+ * tests/input.at (Type Clashes): Adjust.
+
+2002-06-20 Akim Demaille <akim@epita.fr>
+
+ * data/bison.simple (YYLEX): Fix the declaration when
+ %pure-parser.
+
+2002-06-20 Akim Demaille <akim@epita.fr>
+
+ * data/bison.simple (yysymprint): Don't print the token number,
+ just its name.
+ * tests/actions.at (Destructors): Rename as...
+ (Printers and Destructors): this.
+ Also exercise %printer.
+
+2002-06-20 Akim Demaille <akim@epita.fr>
+
+ * data/bison.simple (YYDSYMPRINT): New.
+ Use it to remove many of the #if YYDEBUG/if (yydebug).
+
+2002-06-20 Akim Demaille <akim@epita.fr>
+
+ * src/symtab.h, src/symtab.c (symbol_t): printer and
+ printer_location are new members.
+ (symbol_printer_set): New.
+ * src/parse-gram.y (PERCENT_PRINTER): New token.
+ Handle its associated rule.
+ * src/scan-gram.l: Adjust.
+ (handle_destructor_at, handle_destructor_dollar): Rename as...
+ (handle_symbol_code_at, handle_symbol_code_dollar): these.
+ * src/output.c (symbol_printers_output): New.
+ (output_skeleton): Call it.
+ * data/bison.simple (yysymprint): New. Cannot be named yyprint
+ since there are already many grammar files with a user `yyprint'.
+ Replace the calls to YYPRINT to calls to yysymprint.
+ * tests/calc.at: Adjust.
+ * tests/torture.at (AT_DATA_STACK_TORTURE): Remove YYPRINT: it was
+ taking advantage of parser very internal details (stack size!).
+
+2002-06-20 Akim Demaille <akim@epita.fr>
+
+ * src/scan-gram.l: Complete the scanner with the missing patterns
+ to pacify Flex.
+ Use `quote' and `symbol_tag_get' where appropriate.
+
+2002-06-19 Akim Demaille <akim@epita.fr>
+
+ * tests/actions.at (Destructors): Augment to test locations.
+ * data/bison.simple (yydestructor): Pass it the current location
+ if locations are enabled.
+ Prototype only when __STDC__ or C++.
+ Change the argument names to move into the yy name space: there is
+ user code here.
+
+2002-06-19 Akim Demaille <akim@epita.fr>
+
+ * data/bison.simple (b4_pure_if): New.
+ Use it instead of #ifdef YYPURE.
+
+2002-06-19 Akim Demaille <akim@epita.fr>
+
+ * data/bison.simple (b4_location_if): New.
+ Use it instead of #ifdef YYLSP_NEEDED.
+
+2002-06-19 Akim Demaille <akim@epita.fr>
+
+ Prepare @$ in %destructor, but currently don't bind it in the
+ skeleton, as %location use is not cleaned up yet.
+
+ * src/scan-gram.l (handle_dollar, handle_destructor_at)
+ (handle_action_at): New.
+ (handle_at, handle_action_dollar, handle_destructor_dollar): Take
+ a braced_code_t and a location as additional arguments.
+ (handle_destructor_dollar): Instead of requiring `b4_eval', just
+ unquote one when outputting `b4_dollar_dollar'.
+ Adjust callers.
+ * data/bison.simple (b4_eval): Remove.
+ (b4_symbol_destructor): Adjust.
+ * tests/input.at (Invalid @n): Adjust.
+
+2002-06-19 Zack Weinberg <zack@codesourcery.com>
+
+ * doc/bison.texinfo: Document ability to have multiple
+ prologue sections.
+
+2002-06-18 Akim Demaille <akim@epita.fr>
+
+ * src/files.c (compute_base_names): When computing the output file
+ names from the input file name, strip the directory part.
+
+2002-06-18 Akim Demaille <akim@epita.fr>
+
+ * data/bison.simple.new: Comment changes.
+ Reported by Andreas Schwab.
+
+2002-06-18 Matt Kraai <kraai@alumni.cmu.edu>
+
+ * data/bison.simple (yyoverflowlab): #ifndef yyoverflow, so that
+ there are no `label `yyoverflowlab' defined but not used' warnings
+ when yyoverflow is defined.
+
+2002-06-18 Akim Demaille <akim@epita.fr>
+
+ * src/symtab.h, src/symtab.c (symbol_t): destructor_location is a
+ new member.
+ (symbol_destructor_set): Adjust.
+ * src/output.c (symbol_destructors_output): Output the destructor
+ locations.
+ Output the symbol name.
+ * data/bison.simple (b4_symbol_destructor): Adjust.
+
+2002-06-18 Cris Bailiff <c.bailiff@awayweb.com>
+ and Akim Demaille <akim@epita.fr>
+
+ * data/bison.simple.new (yyerrlab1): Be sure to pop and destroy
+ what's left on the stack when the error recovery hits EOF.
+ * tests/actions.at (Destructors): Complete to exercise this case.
+
+2002-06-17 Akim Demaille <akim@epita.fr>
+
+ * data/m4sugar/m4sugar.m4 (m4_map): Recognize when the list of
+ arguments is really empty, not only equal to `[]'.
+ * src/symtab.h, src/symtab.c (symbol_t): `destructor' is a new
+ member.
+ (symbol_destructor_set): New.
+ * src/output.c (symbol_destructors_output): New.
+ * src/reader.h (brace_code_t, current_braced_code): New.
+ * src/scan-gram.l (BRACED_CODE): Use it to branch on...
+ (handle_dollar): Rename as...
+ (handle_action_dollar): this.
+ (handle_destructor_dollar): New.
+ * src/parse-gram.y (PERCENT_DESTRUCTOR): New.
+ (grammar_declaration): Use it.
+ * data/bison.simple (yystos): Is always defined.
+ (yydestructor): New.
+ * tests/actions.at (Destructors): New.
+ * tests/calc.at (_AT_CHECK_CALC_ERROR): Don't rely on egrep.
+
+2002-06-17 Akim Demaille <akim@epita.fr>
+
+ * src/symlist.h, src/symlist.c (symbol_list_length): New.
+ * src/scan-gram.l (handle_dollar, handle_at): Compute the
+ rule_length only when needed.
+ * src/output.c (actions_output, token_definitions_output): Output
+ the full M4 block.
+ * src/symtab.c: Don't access directly to the symbol tag, use
+ symbol_tag_get.
+ * src/parse-gram.y: Use symbol_list_free.
+
+2002-06-17 Akim Demaille <akim@epita.fr>
+
+ * src/reader.h, src/reader.c (symbol_list, symbol_list_new)
+ (symbol_list_prepend, get_type_name): Move to...
+ * src/symlist.h, src/symlist.c (symbol_list_t, symbol_list_new)
+ (symbol_list_prepend, symbol_list_n_type_name_get): here.
+ Adjust all callers.
+ (symbol_list_free): New.
+ * src/scan-gram.l (handle_dollar): Takes a location.
+ * tests/input.at (Invalid $n): Adjust.
+
+2002-06-17 Akim Demaille <akim@epita.fr>
+
+ * src/reader.h, src/reader.c (symbol_list_new): Export it.
+ (symbol_list_prepend): New.
+ * src/parse-gram.y (%union): `list' is a new member.
+ (symbols.1): New, replaces...
+ (terms_to_prec.1, nterms_to_type.1): these.
+ * src/symtab.h, src/symtab.c (symbol_type_set, symbol_precedence_set)
+ Take a location as additional argument.
+ Adjust all callers.
+
+2002-06-15 Akim Demaille <akim@epita.fr>
+
+ * src/parse-gram.y: Move %token in the declaration section so that
+ we don't depend upon CVS Bison.
+
+2002-06-15 Akim Demaille <akim@epita.fr>
+
+ * src/state.h, src/state.c (state_rule_lookaheads_print): New.
+ * src/print.c (print_core): Use it.
+
+2002-06-15 Akim Demaille <akim@epita.fr>
+
+ * src/conflicts.c (log_resolution): Accept the rule involved in
+ the sr conflicts instead of the lookahead number that points to
+ that rule.
+ (flush_reduce): Accept the current lookahead vector as argument,
+ instead of the index in LA.
+ (resolve_sr_conflict): Accept the current number of lookahead
+ bitset to consider for the STATE, instead of the index in LA.
+ (set_conflicts): Adjust.
+ * src/lalr.c, src/lalr.h, src/state.h: Comment changes.
+
+2002-06-15 Akim Demaille <akim@epita.fr>
+
+ * src/state.h (state_t): Replace the `lookaheadsp' member, a
+ short, with `lookaheads' (bitsetv), `lookaheads_rule' (rule_t**).
+ Adjust all dependencies.
+ * src/lalr.c (initialize_lookaheads): Split into...
+ (states_lookaheads_count, states_lookaheads_initialize): these.
+ (lalr): Adjust.
+
+2002-06-15 Akim Demaille <akim@epita.fr>
+
+ * src/gram.h, src/gram.c (grammar_rules_partial_print): New, eved
+ out of...
+ (grammar_rules_print): here.
+ * src/reduce.c (reduce_output): Use it.
+ * tests/reduce.at (Useless Rules, Reduced Automaton)
+ (Underivable Rules): Adjust.
+
+2002-06-15 Akim Demaille <akim@epita.fr>
+
+ Copy BYacc's nice way to report the grammar.
+
+ * src/gram.h, src/gram.c (grammar_rhs_print, grammar_rules_print):
+ New.
+ Don't print the rules' location, it is confusing and useless.
+ (rule_print): Use grammar_rhs_print.
+ * src/print.c (print_grammar): Use grammar_rules_print.
+
+2002-06-15 Akim Demaille <akim@epita.fr>
+
+ Complete and rationalize `useless thing' warnings.
+
+ * src/symtab.h, src/symtab.c (symbol_tag_get, symbol_tag_get_n)
+ (symbol_tag_print): New.
+ Use them everywhere in place of accessing directly the tag member.
+ * src/gram.h, src/gram.c (rule_print): New.
+ Use it where a rule used to be printed `by hand'.
+ * src/reduce.c (nonterminals_reduce): Report the use nonterminals.
+ (reduce_grammar_tables): Report the useless rules.
+ (reduce_print): Useless things are a warning, not an error.
+ Report it as such.
+ * tests/reduce.at (Useless Nonterminals, Useless Rules):
+ (Reduced Automaton, Underivable Rules): Adjust.
+ * tests/regression.at (Web2c Report, Web2c Report): Adjust.
+ * tests/conflicts.at (Unresolved SR Conflicts)
+ (Solved SR Conflicts): Adjust.
+
+2002-06-15 Akim Demaille <akim@epita.fr>
+
+ Let symbols have a location.
+
+ * src/symtab.h, src/symtab.c (symbol_t): Location is a new member.
+ (getsym): Adjust.
+ Adjust all callers.
+ * src/complain.h, src/complain.c (complain_at, fatal_at, warn_at):
+ Use location_t, not int.
+ * src/symtab.c (symbol_check_defined): Take advantage of the
+ location.
+ * tests/regression.at (Invalid inputs): Adjust.
+
+2002-06-15 Akim Demaille <akim@epita.fr>
+
+ * src/parse-gram.y (YYLLOC_DEFAULT, current_lhs_location): New.
+ (input): Don't try to initialize yylloc here, do it in the
+ scanner.
+ * src/scan-gram.l (YY_USER_INIT): Initialize yylloc.
+ * src/gram.h (rule_t): Change line and action_line into location
+ and action_location, of location_t type.
+ Adjust all dependencies.
+ * src/location.h, src/location.c (empty_location): New.
+ * src/reader.h, src/reader.c (grammar_start_symbol_set)
+ (grammar_symbol_append, grammar_rule_begin, grammar_rule_end)
+ (grammar_current_rule_symbol_append)
+ (grammar_current_rule_action_append): Expect a location as argument.
+ * src/reader.c (grammar_midrule_action): Adjust to attach an
+ action's location as dummy symbol location.
+ * src/symtab.h, src/symtab.c (startsymbol_location): New.
+ * tests/regression.at (Web2c Report, Rule Line Numbers): Adjust
+ the line numbers.
+
+2002-06-14 Akim Demaille <akim@epita.fr>
+
+ Grammar declarations may be found in the grammar section.
+
+ * src/parse-gram.y (rules_or_grammar_declaration): New.
+ (declarations): Each declaration may end with a semicolon, not
+ just...
+ (grammar_declaration): `"%union"'.
+ (grammar): Branch to rules_or_grammar_declaration.
+
+2002-06-14 Akim Demaille <akim@epita.fr>
+
+ * src/main.c (main): Invoke scanner_free.
+
2002-06-14 Akim Demaille <akim@epita.fr>
* src/output.c (m4_invoke): Extracted from...
(output_skeleton): here.
Free tempfile.
-
2002-06-14 Akim Demaille <akim@epita.fr>
* src/parse-gram.y (directives, directive, gram)
(precedence_declaration, precedence_declarator): these.
(symbol_declaration): New.
-
2002-06-14 Akim Demaille <akim@epita.fr>
* src/files.c (action_obstack): Remove, unused.
(muscle_free): New.
* src/main.c (main): Call it.
-
2002-06-14 Akim Demaille <akim@epita.fr>
* src/location.h: New, extracted from...
* src/reader.h, src/reader.c (prologue_augment, epilogue_set):
Use location_t instead of ints.
-
2002-06-14 Akim Demaille <akim@epita.fr>
* data/bison.simple, data/bison.c++: Be sure to restore the
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projects / bison.git / blobdiff