X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/9b3add5bebc553f9bc1a10a9a6a489135f2a9d4d..e1a4f3a428d3b721b1a63cc0cb77369e8efe7ed8:/ChangeLog diff --git a/ChangeLog b/ChangeLog index 1c5ca441..606481ab 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,2498 @@ +2002-07-03 Akim Demaille + + * 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 + + * 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. + (<>): Close yyout, and free its name. + + +2002-07-03 Akim Demaille + + 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 + + * 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 + + * src/scan-gram.l (): Convert to unsigned + char, so that negative chars don't collide with $. + +2002-06-30 Akim Demaille + + 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 + + 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 + + * 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 + + * 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 + + * 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 + + 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 + + * 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 + + * src/output.c (action_row): Let default_rule be always a rule + number. + +2002-06-30 Akim Demaille + + * 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 + + * src/print_graph.c: Use report_flag. + +2002-06-30 Akim Demaille + + * 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 + + * src/state.h, src/state.c (shifts_to): New. + * src/lalr.c (build_relations): Use it. + +2002-06-30 Akim Demaille + + * 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 + + * src/symtab.c (symbol_new): Initialize the `printer' member. + +2002-06-30 Akim Demaille + + * 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 + + * 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 + + * src/vcg.c (quote): Use slot 2, since we often pass symbol tag + escaped in slot 0. + +2002-06-30 Akim Demaille + + 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 + + * 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 + + * 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 + + * 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 + + 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 + + * data/glr.c: Correct typo in Emacs-mode directive. Slightly + reorganize first lines parallel to yacc.c. + +2002-06-28 Akim Demaille + + * 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 + + * data/yacc.c (yydestruct, yysymprint): Pacify GCC warnings for + unused variables. + * src/output.c (merger_output): static. + +2002-06-28 Akim Demaille + + * 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 + + 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 + + * 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 + + * data/bison.glr: Bring up to date with changes to bison.simple. + + Originally 2002-06-03 Paul Hilfinger + + * 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 + + * 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 + + * src/options.h, src/options.c: Remove. + * src/getargs.c (short_options, long_options): New. + +2002-06-27 Akim Demaille + + * 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 + + * src/getargs.c (report_argmatch): Initialize strtok(). + +2002-06-20 Akim Demaille + + * 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 + + * data/bison.simple (yydestructor): Rename as... + (yydestruct): this. + +2002-06-20 Akim Demaille + + * 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 + + * 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 + + * data/bison.simple (YYLEX): Fix the declaration when + %pure-parser. + +2002-06-20 Akim Demaille + + * 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 + + * data/bison.simple (YYDSYMPRINT): New. + Use it to remove many of the #if YYDEBUG/if (yydebug). + +2002-06-20 Akim Demaille + + * 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 + + * 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 + + * 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 + + * data/bison.simple (b4_pure_if): New. + Use it instead of #ifdef YYPURE. + +2002-06-19 Akim Demaille + + * data/bison.simple (b4_location_if): New. + Use it instead of #ifdef YYLSP_NEEDED. + +2002-06-19 Akim Demaille + + 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 + + * doc/bison.texinfo: Document ability to have multiple + prologue sections. + +2002-06-18 Akim Demaille + + * 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 + + * data/bison.simple.new: Comment changes. + Reported by Andreas Schwab. + +2002-06-18 Matt Kraai + + * 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 + + * 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 + and Akim Demaille + + * 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 + + * 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 + + * 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 + + * 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 + + * 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 + + * src/parse-gram.y: Move %token in the declaration section so that + we don't depend upon CVS Bison. + +2002-06-15 Akim Demaille + + * src/state.h, src/state.c (state_rule_lookaheads_print): New. + * src/print.c (print_core): Use it. + +2002-06-15 Akim Demaille + + * 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 + + * 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 + + * 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 + + 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 + + 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 + + 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 + + * 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 + + 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 + + * src/main.c (main): Invoke scanner_free. + +2002-06-14 Akim Demaille + + * src/output.c (m4_invoke): Extracted from... + (output_skeleton): here. + Free tempfile. + +2002-06-14 Akim Demaille + + * src/parse-gram.y (directives, directive, gram) + (grammar_directives, precedence_directives, precedence_directive): + Rename as... + (declarations, declaration, grammar, grammar_declaration) + (precedence_declaration, precedence_declarator): these. + (symbol_declaration): New. + +2002-06-14 Akim Demaille + + * src/files.c (action_obstack): Remove, unused. + (output_obstack): Remove it, and all its dependencies, as it is no + longer needed. + * src/reader.c (epilogue_set): Build the epilogue in the + muscle_obstack. + * src/output.h, src/output.c (muscle_obstack): Move to... + * src/muscle_tab.h, src/muscle_tab.h: here. + (muscle_init): Initialize muscle_obstack. + (muscle_free): New. + * src/main.c (main): Call it. + +2002-06-14 Akim Demaille + + * src/location.h: New, extracted from... + * src/reader.h: here. + * src/Makefile.am (noinst_HEADERS): Merge into + (bison_SOURCES): this. + Add location.h. + * src/parse-gram.y: Use location_t instead of Bison's. + * src/reader.h, src/reader.c (prologue_augment, epilogue_set): + Use location_t instead of ints. + +2002-06-14 Akim Demaille + + * data/bison.simple, data/bison.c++: Be sure to restore the + current #line when returning to the skeleton contents after having + exposed the input file's #line. + +2002-06-12 Akim Demaille + + * src/scan-gram.l (SC_BRACED_CODE): Don't use `<.*>', it is too + eager. + * tests/actions.at (Exotic Dollars): New. + +2002-06-12 Akim Demaille + + * src/scan-gram.l (SC_PROLOGUE): Don't eat characters amongst + ['"/] too eagerly. + * tests/input.at (Torturing the Scanner): New. + +2002-06-11 Akim Demaille + + * src/scan-gram.l (YY_OBS_INIT): Remove, replace with... + [SC_COMMENT,SC_STRING,SC_CHARACTER,SC_BRACED_CODE,SC_PROLOGUE] + [SC_EPILOGUE]: Output the quadrigraphs only when not in a comment. + * src/reader.h, src/scan-gram.l (scanner_initialize): this. + * src/reader.c (reader): Use it. + +2002-06-11 Akim Demaille + + * src/scan-gram.l (YY_OBS_FINISH): Don't set yylval. + Adjust all callers. + (scanner_last_string_free): New. + +2002-06-11 Akim Demaille + + * src/scan-gram.l (YY_INIT, YY_GROW, YY_FINISH): Rename as... + (YY_OBS_INIT, YY_OBS_GROW, YY_OBS_FINISH): these. + (last_string, YY_OBS_FREE): New. + Use them when returning an ID. + +2002-06-11 Akim Demaille + + Have Bison grammars parsed by a Bison grammar. + + * src/reader.c, src/reader.h (prologue_augment): New. + * src/reader.c (copy_definition): Remove. + + * src/reader.h, src/reader.c (gram_start_symbol_set, prologue_augment) + (grammar_symbol_append, grammar_rule_begin, grammar_midrule_action) + (grammar_current_rule_prec_set, grammar_current_rule_check) + (grammar_current_rule_symbol_append) + (grammar_current_rule_action_append): Export. + * src/parse-gram.y (symbol_list_new, symbol_list_symbol_append_ + (symbol_list_action_append): Remove. + Hook the routines from reader. + * src/scan-gram.l: In INITIAL, characters and strings are tokens. + * src/system.h (ATTRIBUTE_NORETURN, ATTRIBUTE_UNUSED): Now. + + * src/reader.c (read_declarations): Remove, unused. + + * src/parse-gram.y: Handle the epilogue. + * src/reader.h, src/reader.c (gram_start_symbol_set): Rename as... + (grammar_start_symbol_set): this. + * src/scan-gram.l: Be sure to ``use'' yycontrol to keep GCC quiet. + * src/reader.c (readgram): Remove, unused. + (reader): Adjust to insert eoftoken and axiom where appropriate. + + * src/reader.c (copy_dollar): Replace with... + * src/scan-gram.h (handle_dollar): this. + * src/parse-gram.y: Remove `%thong'. + + * src/reader.c (copy_at): Replace with... + * src/scan-gram.h (handle_at): this. + + * src/complain.h, src/complain.c (warn_at, complain_at, fatal_at): + New. + + * src/scan-gram.l (YY_LINES): Keep lineno synchronized for the + time being. + + * src/reader.h, src/reader.c (grammar_rule_end): New. + + * src/parse.y (current_type, current_class): New. + Implement `%nterm', `%token' support. + Merge `%term' into `%token'. + (string_as_id): New. + * src/symtab.h, src/symtab.c (symbol_make_alias): Don't pass the + type name. + + * src/parse-gram.y: Be sure to handle properly the beginning of + rules. + + * src/parse-gram.y: Handle %type. + * src/reader.c (grammar_rule_end): Call grammar_current_rule_check. + + * src/parse-gram.y: More directives support. + * src/options.c: No longer handle source directives. + + * src/parse-gram.y: Fix %output. + + * src/parse-gram.y: Handle %union. + Use the prologue locations. + * src/reader.c (parse_union_decl): Remove. + + * src/reader.h, src/reader.c (epilogue_set): New. + * src/parse-gram.y: Use it. + + * data/bison.simple, data/bison.c++: b4_stype is now either not + defined, then default to int, or to the contents of %union, + without `union' itself. + Adjust. + * src/muscle_tab.c (muscle_init): Don't predefine `stype'. + + * src/output.c (actions_output): Don't output braces, as they are + already handled by the scanner. + + * src/scan-gram.l (SC_CHARACTER): Set the user_token_number of + characters to themselves. + + * tests/reduce.at (Reduced Automaton): End the grammars with %% so + that the epilogue has a proper #line. + + * src/parse-gram.y: Handle precedence/associativity. + + * src/symtab.c (symbol_precedence_set): Requires the symbol to be + a terminal. + * src/scan-gram.l (SC_BRACED_CODE): Catch strings and characters. + * tests/calc.at: Do not use `%token "foo"' as it makes not sense + at all to define terminals that cannot be emitted. + + * src/scan-gram.l: Escape M4 characters. + + * src/scan-gram.l: Working properly with escapes in user + strings/characters. + + * tests/torture.at (AT_DATA_TRIANGULAR_GRAMMAR) + (AT_DATA_HORIZONTAL_GRAMMAR): Respect the `%token ID NUM STRING' + grammar. + Use more modest sizes, as for the time being the parser does not + release memory, and therefore the process swallows a huge amount + of memory. + + * tests/torture.at (AT_DATA_LOOKAHEADS_GRAMMAR): Adjust to the + stricter %token grammar. + + * src/symtab.h (associativity): Add `undef_assoc'. + (symbol_precedence_set): Do nothing when passed an undef_assoc. + * src/symtab.c (symbol_check_alias_consistence): Adjust. + + * tests/regression.at (Invalid %directive): Remove, as it is now + meaningless. + (Invalid inputs): Adjust to the new error messages. + (Token definitions): The new grammar doesn't allow too many + eccentricities. + + * src/lex.h, src/lex.c: Remove. + * src/reader.c (lastprec, skip_to_char, read_signed_integer) + (copy_character, copy_string2, copy_string, copy_identifier) + (copy_comment, parse_token_decl, parse_type_decl, parse_assoc_decl) + (parse_muscle_decl, parse_dquoted_param, parse_skel_decl) + (parse_action): Remove. + * po/POTFILES.in: Adjust. + +2002-06-11 Akim Demaille + + * src/reader.c (parse_action): Don't store directly into the + rule's action member: return the action as a string. + Don't require `rule_length' as an argument: compute it. + (grammar_current_rule_symbol_append) + (grammar_current_rule_action_append): New, eved out from + (readgram): here. + Remove `action_flag', `rulelength', unused now. + +2002-06-11 Akim Demaille + + * src/reader.c (grammar_current_rule_prec_set). + (grammar_current_rule_check): New, eved out from... + (readgram): here. + Remove `xaction', `first_rhs': useless. + * tests/input.at (Type clashes): New. + * tests/existing.at (GNU Cim Grammar): Adjust. + +2002-06-11 Akim Demaille + + * src/reader.c (grammar_midrule_action): New, Eved out from + (readgram): here. + +2002-06-11 Akim Demaille + + * src/reader.c (grammar_rule_begin, previous_rule, current_rule): + New. + (readgram): Use them as replacement of inlined code, crule and + crule1. + +2002-06-11 Akim Demaille + + * src/reader.c (grammar_end, grammar_symbol_append): New. + (readgram): Use them. + Make the use of `p' as local as possible. + +2002-06-10 Akim Demaille + + GCJ's parser requires the tokens to be defined before the prologue. + + * data/bison.simple: Output the token definition before the user's + prologue. + * tests/regression.at (Braces parsing, Duplicate string) + (Mixing %token styles): Check the output from bison. + (Early token definitions): New. + +2002-06-10 Akim Demaille + + * src/symtab.c (symbol_user_token_number_set): Don't complain when + assigning twice the same user number to a token, so that we can + use it in... + * src/lex.c (lex): here. + Also use `symbol_class_set' instead of hand written code. + * src/reader.c (parse_assoc_decl): Likewise. + +2002-06-10 Akim Demaille + + * src/symtab.c, src/symtab.c (symbol_class_set) + (symbol_user_token_number_set): New. + * src/reader.c (parse_token_decl): Use them. + Use a switch instead of ifs. + Use a single argument. + +2002-06-10 Akim Demaille + + Remove `%thong' support as it is undocumented, unused, duplicates + `%token's job, and creates useless e-mail traffic with people who + want to know what it is, why it is undocumented, unused, and + duplicates `%token's job. + + * src/reader.c (parse_thong_decl): Remove. + * src/options.c (option_table): Remove "thong". + * src/lex.h (tok_thong): Remove. + +2002-06-10 Akim Demaille + + * src/symtab.c, src/symtab.c (symbol_type_set) + (symbol_precedence_set): New. + * src/reader.c (parse_type_decl, parse_assoc_decl): Use them. + (value_components_used): Remove, unused. + +2002-06-09 Akim Demaille + + Move symbols handling code out of the reader. + + * src/reader.h, src/reader.c (errtoken, undeftoken, eoftoken) + (axiom): Move to... + * src/symtab.h, src/symtab.c: here. + + * src/gram.c (start_symbol): Remove: use startsymbol->number. + * src/reader.c (startval): Rename as... + * src/symtab.h, src/symtab.c (startsymbol): this. + * src/reader.c: Adjust. + + * src/reader.c (symbol_check_defined, symbol_make_alias) + (symbol_check_alias_consistence, symbol_pack, symbol_translation) + (token_translations_init) + Move to... + * src/symtab.c: here. + * src/reader.c (packsymbols): Move to... + * src/symtab.h, src/symtab.c (symbols_pack): here. + * src/symtab.h, src/symtab.c (symbol_make_alias): Takes SYMVAL as + argument. + +2002-06-03 Akim Demaille + + * src/muscle_tab.c (muscle_insert, muscle_find): Declarations, + then statements. + +2002-06-03 Akim Demaille + + * src/muscle_tab.c (muscle_find, muscle_insert): Don't initialize + structs with non literals. + * src/scan-skel.l: never-interactive. + * src/conflicts.c (enum conflict_resolution_e): No trailing + comma. + * src/getargs.c (usage): Split long literal strings. + Reported by Hans Aberg. + +2002-05-28 Akim Demaille + + * data/bison.c++: Use C++ ostreams. + (cdebug_): New member. + +2002-05-28 Akim Demaille + + * src/output.c (output_skeleton): Be sure to allocate enough room + for `/' _and_ for `\0' in full_skeleton. + +2002-05-28 Akim Demaille + + * data/bison.c++: Catch up with bison.simple: + 2002-05-24 Paul Hilfinger + and Paul Eggert : `error' handing. + 2002-05-26 Akim Demaille : stos_, token_number_, + and popping traces. + +2002-05-27 Paul Hilfinger + + * src/output.c (output_skeleton): Put an explicit path in front of + the skeleton file name, rather than relying on the -I directory, + to partially alleviate effects of having a skeleton file lying around + in the current directory. + +2002-05-27 Paul Hilfinger + + * src/conflicts.c (log_resolution): Correct typo: + obstack_printf should be obstack_fgrow1. + +2002-05-26 Akim Demaille + + * src/state.h (state_t): `solved_conflicts' is a new member. + * src/LR0.c (new_state): Set it to 0. + * src/conflicts.h, src/conflicts.c (print_conflicts) + (free_conflicts, solve_conflicts): Rename as... + (conflicts_print, conflicts_free, conflicts_solve): these. + Adjust callers. + * src/conflicts.c (enum conflict_resolution_e) + (solved_conflicts_obstack): New, used by... + (log_resolution): this. + Adjust to attach the conflict resolution to each state. + Complete the description with the precedence/associativity + information. + (resolve_sr_conflict): Adjust. + * src/print.c (print_state): Output its solved_conflicts. + * tests/conflicts.at (Unresolved SR Conflicts) + (Solved SR Conflicts): Exercise --report=all. + +2002-05-26 Akim Demaille + + * src/LR0.c, src/derives.c, src/gram.c, src/gram.h, src/lalr.c, + * src/nullable.c, src/output.c, src/print.c, src/print_graph.c, + * src/reader.c, src/reduce.c, src/state.h, src/symtab.h + (token_number_t, item_number_as_token_number) + (token_number_as_item_number, muscle_insert_token_number_table): + Rename as... + (symbol_number_t, item_number_as_symbol_number) + (symbol_number_as_item_number, muscle_insert_symbol_number_table): + these, since it is more appropriate. + +2002-05-26 Akim Demaille + + * tests/calc.at (AT_CHECK_CALC): Adjust: there are now additional + `Error:' lines. + * data/bison.simple (yystos) [YYDEBUG]: New. + (yyparse) [YYDEBUG]: Display the symbols which are popped during + error recovery. + * tests/regression.at (Web2c Actions): Adjust: yystos is output now. + +2002-05-25 Akim Demaille + + * doc/bison.texinfo (Debugging): Split into... + (Tracing): this new section, its former contents, and... + (Understanding): this new section. + * src/getargs.h, src/getargs.c (verbose_flag): Remove, replaced + by... + (report_flag): this. + Adjust all dependencies. + (report_args, report_types, report_argmatch): New. + (usage, getargs): Report/support -r, --report. + * src/options.h + (struct option_table_struct): Rename as.., + (struct option_table_s): this. + Rename the `set_flag' member to `flag' to match with getopt_long's + struct. + * src/options.c (option_table): Split verbose into an entry for + %verbose, and another for --verbose. + Support --report/-r, so remove -r from the obsolete --raw. + * src/print.c: Attach full item sets and lookaheads reports to + report_flag instead of trace_flag. + * lib/argmatch.h, lib/argmatch.c: New, from Fileutils 4.1. + +2002-05-24 Paul Hilfinger + and Paul Eggert + + * data/bison.simple (yyparse): Correct error handling to conform to + POSIX and yacc. Specifically, after syntax error is discovered, + do not reduce further before shifting the error token. + Clean up the code a bit by removing the labels yyerrdefault, + yyerrhandle, yyerrpop. + * NEWS: Document the above. + +2002-05-20 Paul Hilfinger + + * data/bison.simple (yyr1): Don't use yy_token_number_type as element + type; it isn't always big enough, since it doesn't necessarily + include non-terminals. + (yytranslate): Expand definition of yy_token_number_type, so that + the latter can be removed. + (yy_token_number_type): Remove, only one use. + * data/bison.c++ (r1_): Parallel change to yyr1 in bison.simple--- + don't use TokenNumberType as element type. + + * tests/regression.at: Modify expected output to agree with change + to yyr1 and yytranslate. + +2002-05-13 Florian Krohm + + * src/reader.c (parse_action): Use copy_character instead of + obstack_1grow. + +2002-05-13 Akim Demaille + + * tests/regression.at (Token definitions): Prototype yylex and + yyerror. + +2002-05-12 Paul Hilfinger + + * src/scan-skel.l: Correct off-by-one error in handling of __oline__. + * data/bison.simple (b4_sint_type, b4_uint_type): Correct to reflect + 32-bit arithmetic. + * data/bison.c++ (b4_sint_type, b4_uint_type): Ditto. + +2002-05-07 Akim Demaille + + * tests/synclines.at: Be sure to prototype yylex and yyerror to + avoid GCC warnings. + +2002-05-07 Akim Demaille + + Kill GCC warnings. + + * src/reduce.c (nonterminals_reduce): Don't loop over RITEM: loop + over the RHS of each rule. + * src/gram.h, src/gram.c (nritems): Is `unsigned int', not int. + * src/state.h (state_t): Member `nitems' is unsigned short. + * src/LR0.c (get_state): Adjust. + * src/reader.c (packgram): Likewise. + * src/output.c (GENERATE_MUSCLE_INSERT_TABLE): `max' is of type + `Type'. + (muscle_insert_int_table): Remove, unused. + (prepare_rules): Remove `max'. + +2002-05-06 Akim Demaille + + * src/closure.c (print_firsts): Display of the symbol tags. + (bitmatrix_print): Move to... + * lib/bitsetv-print.h, lib/bitsetv-print.c (bitsetv_matrix_dump): + here. + * tests/sets.at (Nullable, Broken Closure, Firsts): Adjust. + +2002-05-06 Akim Demaille + + * src/muscle_tab.c (muscle_m4_output): Must return TRUE for + hash_do_for_each. + +2002-05-06 Akim Demaille + + * src/LR0.c (new_state, get_state): Instead of using the global + `kernel_size' and `kernel_base', have two new arguments: + `core_size' and `core'. + Adjust callers. + +2002-05-06 Akim Demaille + + * src/reader.c (packgram): No longer end `ritem' with a 0 + sentinel: it is not used. + +2002-05-05 Akim Demaille + + New experimental feature: display the lookaheads in the report and + graph. + + * src/print (print_core): When --trace-flag, display the rules + lookaheads. + * src/print_graph.c (print_core): Likewise. + Swap the arguments. + Adjust caller. + +2002-05-05 Akim Demaille + + * tests/torture.at (Many lookaheads): New test. + +2002-05-05 Akim Demaille + + * src/output.c (GENERATE_OUTPUT_TABLE): Replace with... + (GENERATE_MUSCLE_INSERT_TABLE): this. + (output_int_table, output_unsigned_int_table, output_short_table) + (output_token_number_table, output_item_number_table): Replace with... + (muscle_insert_int_table, muscle_insert_unsigned_int_table) + (muscle_insert_short_table, muscle_insert_token_number_table) + (muscle_insert_item_number_table): these. + Adjust all callers. + (prepare_tokens): Don't free `translations', since... + * src/reader.h, src/reader.c (grammar_free): do it. + Move to... + * src/gram.h, src/gram.c (grammar_free): here. + * data/bison.simple, data/bison.c++: b4_token_number_max is now + b4_translate_max. + +2002-05-05 Akim Demaille + + * src/output.c (output_unsigned_int_table): New. + (prepare_rules): `i' is unsigned. + `prhs', `rline', `r2' are unsigned int. + Rename muscle `rhs_number_max' as `rhs_max'. + Output muscles `prhs_max', `rline_max', and `r2_max'. + Free rline and r1. + * data/bison.simple, data/bison.c++: Adjust to use these muscles + to compute types instead of constant types. + * tests/regression.at (Web2c Actions): Adjust. + +2002-05-04 Akim Demaille + + * src/symtab.h (SALIAS, SUNDEF): Rename as... + (USER_NUMBER_ALIAS, USER_NUMBER_UNDEFINED): these. + Adjust dependencies. + * src/output.c (token_definitions_output): Be sure not to output a + `#define 'a'' when fed with `%token 'a' "a"'. + * tests/regression.at (Token definitions): New. + +2002-05-03 Paul Eggert + + * data/bison.simple (b4_token_defines): Also define YYTOKENTYPE + for K&R C. + +2002-05-03 gettextize + + * Makefile.am (SUBDIRS): Remove intl. + (EXTRA_DIST): Add config/config.rpath. + +2002-05-03 Akim Demaille + + * data/bison.simple (m4_if): Don't output empty enums. + And actually, output valid enum definitions :(. + +2002-05-03 Akim Demaille + + * configure.bat: Remove, completely obsolete. + * Makefile.am (EXTRA_DIST): Adjust. + Don't distribute config.rpath... + * config/Makefile.am (EXTRA_DIST): Do it. + +2002-05-03 Akim Demaille + + * configure.in (GETTEXT_VERSION): New. + Suggested by Bruno Haible for the forthcoming Gettext 0.10.3. + +2002-05-03 Akim Demaille + + * data/bison.simple (b4_token_enum): New. + (b4_token_defines): Use it to output tokens both as #define and + enums. + Suggested by Paul Eggert. + * src/output.c (token_definitions_output): Don't output spurious + white spaces. + +2002-05-03 Akim Demaille + + * data/m4sugar/m4sugar.m4: Update from CVS Autoconf. + +2002-05-02 Robert Anisko + + * data/bison.c++: Adapt expansion of $s and @s to the C++ parser. + Update the stack class, give a try to deque as the default container. + +2002-05-02 Akim Demaille + + * data/bison.simple (yyparse): Do not implement @$ = @1. + (YYLLOC_DEFAULT): Adjust to do it. + * doc/bison.texinfo (Location Default Action): Fix. + +2002-05-02 Akim Demaille + + * src/reader.c (parse_braces): Merge into... + (parse_action): this. + +2002-05-02 Akim Demaille + + * configure.in (ALL_LINGUAS): Remove. + * po/LINGUAS, hr.po: New. + +2002-05-02 Akim Demaille + + Remove the so called hairy (semantic) parsers. + + * src/system.h (EXT_GUARD_C, EXT_STYPE_H): Remove. + * src/gram.h, src/gram.c (semantic_parser): Remove. + (rule_t): Remove the guard and guard_line members. + * src/lex.h (token_t): remove tok_guard. + * src/options.c (option_table): Remove %guard and %semantic_parser + support. + * src/output.c, src/output.h (guards_output): Remove. + (prepare): Adjust. + (token_definitions_output): Don't output the `T' + tokens (???). + (output_skeleton): Don't output the guards. + * src/files.c, src/files.c (attrsfile): Remove. + * src/reader.c (symbol_list): Remove the guard and guard_line + members. + Adjust dependencies. + (parse_guard): Remove. + * data/bison.hairy: Remove. + * doc/bison.texinfo (Environment Variables): Remove occurrences of + BISON_HAIRY. + +2002-05-02 Akim Demaille + + * src/reader.c (copy_at, copy_dollarm parse_braces, parse_action) + (parse_guard): Rename the formal argument `stack_offset' as + `rule_length', which is more readable. + Adjust callers. + (copy_at, copy_dollar): Instead of outputting the hard coded + values of $$, $n and so forth, output invocation to b4_lhs_value, + b4_lhs_location, b4_rhs_value, and b4_rhs_location. + Note: this patch partially drops `semantic-parser' support: it + always does `rule_length - n', where semantic parsers ought to + always use `-n'. + * data/bison.simple, data/bison.c++ (b4_lhs_value) + (b4_lhs_location, b4_rhs_value, and b4_rhs_location: New. + +2002-05-02 Akim Demaille + + * configure.in (AC_INIT): Bump to 1.49b. + (AM_INIT_AUTOMAKE): Short invocation. + +2002-05-02 Akim Demaille + + Version 1.49a. + +2002-05-01 Akim Demaille + + * src/skeleton.h: Remove. + +2002-05-01 Akim Demaille + + * src/skeleton.h: Fix the #endif. + Reported by Magnus Fromreide. + +2002-04-26 Paul Eggert + + * data/bison.simple (YYSTYPE_IS_TRIVIAL, YYLTYPE_IS_TRIVIAL): + Define if we define YYSTYPE and YYLTYPE, respectively. + (YYCOPY): Fix [] quoting problem in the non-GCC case. + +2002-04-25 Robert Anisko + + * src/scan-skel.l: Postprocess quadrigraphs. + + * src/reader.c (copy_character): New function, used to output + single characters while replacing `[' and `]' with quadrigraphs, to + avoid troubles with M4 quotes. + (copy_comment): Output characters with copy_character. + (read_additionnal_code): Likewise. + (copy_string2): Likewise. + (copy_definition): Likewise. + + * tests/calc.at: Exercise M4 quoting. + +2002-04-25 Akim Demaille + + * tests/sets.at (AT_EXTRACT_SETS): Sed portability issue: no space + between `!' and the command. + Reported by Paul Eggert. + +2002-04-24 Robert Anisko + + * tests/calc.at: Exercise prologue splitting. + + * data/bison.simple, data/bison.c++: Use `b4_pre_prologue' and + `b4_post_prologue' instead of `b4_prologue'. + + * src/output.c (prepare): Add the `pre_prologue' and `post_prologue' + muscles. + (output): Free pre_prologue_obstack and post_prologue_obstack. + * src/files.h, src/files.c (attrs_obstack): Remove. + (pre_prologue_obstack, post_prologue_obstack): New. + * src/reader.c (copy_definition): Add a parameter to specify the + obstack to fill, instead of using attrs_obstack unconditionally. + (read_declarations): Pass pre_prologue_obstack to copy_definition if + `%union' has not yet been seen, pass post_prologue_obstack otherwise. + +2002-04-23 Paul Eggert + + * data/bison.simple: Remove unnecessary commentary and white + space differences from 1_29-branch. + Depend on YYERROR_VERBOSE, not defined (YYERROR_VERBOSE). + + (union yyalloc, YYSTACK_GAP_MAX, YYSTACK_BYTES, YYCOPY, + YYSTACK_RELOCATE): Do not define if yyoverflow is defined, or + if this is a C++ parser and YYSTYPE or YYLTYPE has nontrivial + constructors or destructors. + + (yyparse) [! defined YYSTACK_RELOCATE]: Do not relocate the stack. + +2002-04-23 Akim Demaille + + * tests/sets.at (AT_EXTRACT_SETS): Don't use 8 char long sed labels. + * tests/synclines.at (AT_TEST_SYNCLINE): Be robust to GCC's + location with columns. + * tests/conflicts.at (%nonassoc and eof): Don't use `error.h'. + All reported by Paul Eggert. + +2002-04-22 Akim Demaille + + * src/reduce.c (dump_grammar): Move to... + * src/gram.h, src/gram.c (grammar_dump): here. + Be sure to separate long item numbers. + Don't read the members of a rule's prec if its nil. + +2002-04-22 Akim Demaille + + * src/output.c (table_size, table_grow): New. + (MAXTABLE): Remove, replace uses with table_size. + (pack_vector): Instead of dying when the table is too big, grow it. + +2002-04-22 Akim Demaille + + * data/bison.simple (yyr1): Its type is that of a token number. + * data/bison.c++ (r1_): Likewise. + * tests/regression.at (Web2c Actions): Adjust. + +2002-04-22 Akim Demaille + + * src/reader.c (token_translations_init): 256 is now the default + value for the error token, i.e., it will be assigned another + number if the user assigned 256 to one of her tokens. + (reader): Don't force 256 to error. + * doc/bison.texinfo (Symbols): Adjust. + * tests/torture.at (AT_DATA_HORIZONTAL_GRAMMAR) + (AT_DATA_TRIANGULAR_GRAMMAR): Number the tokens as 1, 2, 3 + etc. instead of 10, 20, 30 (which was used to `jump' over error + (256) and undefined (2)). + +2002-04-22 Akim Demaille + + Propagate more token_number_t. + + * src/gram.h (token_number_as_item_number) + (item_number_as_token_number): New. + * src/output.c (GENERATE_OUTPUT_TABLE): New. + Use it to create output_item_number_table and + output_token_number_table. + * src/LR0.c, src/derives.c, src/gram.c, src/gram.h, src/lalr.c, + * src/lex.c, src/nullable.c, src/output.c, src/print.c, + * src/print_graph.c, src/reader.c, src/reduce.c, src/state.h, + * src/symtab.c, src/symtab.h: Use token_number_t instead of shorts. + +2002-04-22 Akim Demaille + + * src/output.h, src/output.c (get_lines_number): Remove. + +2002-04-19 Akim Demaille + + * doc/bison.texinfo (Actions): Make clear that `|' is not the same + as Lex/Flex'. + (Debugging): More details about enabling the debugging features. + (Table of Symbols): Describe $$, $n, @$, and @n. + Suggested by Tim Josling. + +2002-04-19 Akim Demaille + + * doc/bison.texinfo: Remove the uses of the obsolete @refill. + +2002-04-10 Akim Demaille + + * src/system.h: Rely on HAVE_LIMITS_H. + Suggested by Paul Eggert. + +2002-04-09 Akim Demaille + + * tests/calc.at (_AT_CHECK_CALC_ERROR): Receive as argument the + full stderr, and strip it according to the bison options, instead + of composing the error message from different bits. + This makes it easier to check for several error messages. + Adjust all the invocations. + Add an invocation exercising the error token. + Add an invocation demonstrating a stupid error message. + (_AT_DATA_CALC_Y): Follow the GCS: initial column is 1, not 0. + Adjust the tests. + Error message are for stderr, not stdout. + +2002-04-09 Akim Demaille + + * src/gram.h, src/gram.c (error_token_number): Remove, use + errtoken->number. + * src/reader.c (reader): Don't specify the user token number (2) + for $undefined, as it uselessly prevents using it. + * src/gram.h (token_number_t): Move to... + * src/symtab.h: here. + (state_t.number): Is a token_number_t. + * src/print.c, src/reader.c: Use undeftoken->number instead of + hard coded 2. + (Even though this 2 is not the same as above: the number of the + undeftoken remains being 2, it is its user token number which + might not be 2). + * src/output.c (prepare_tokens): Rename the `maxtok' muscle with + `user_token_number_max'. + Output `undef_token_number'. + * data/bison.simple, data/bison.c++: Use them. + Be sure to map invalid yylex return values to + `undef_token_number'. This saves us from gratuitous SEGV. + + * tests/conflicts.at (Solved SR Conflicts) + (Unresolved SR Conflicts): Adjust. + * tests/regression.at (Web2c Actions): Adjust. + +2002-04-08 Akim Demaille + + * data/bison.c++: s/b4_item_number_max/b4_rhs_number_max/. + Adding #line. + Remove the duplicate `typedefs'. + (RhsNumberType): Fix the declaration and various other typos. + Use __ofile__. + * data/bison.simple: Use __ofile__. + * src/scan-skel.l: Handle __ofile__. + +2002-04-08 Akim Demaille + + * src/gram.h (item_number_t): New, the type of item numbers in + RITEM. Note that it must be able to code symbol numbers as + positive number, and the negation of rule numbers as negative + numbers. + Adjust all dependencies (pretty many). + * src/reduce.c (rule): Remove this `short *' pointer: use + item_number_t. + * src/system.h (MINSHORT, MAXSHORT): Remove. + Include `limits.h'. + Adjust dependencies to using SHRT_MAX and SHRT_MIN. + (shortcpy): Remove. + (MAXTABLE): Move to... + * src/output.c (MAXTABLE): here. + (prepare_rules): Use output_int_table to output rhs. + * data/bison.simple, data/bison.c++: Adjust. + * tests/torture.at (Big triangle): Move the limit from 254 to + 500. + * tests/regression.at (Web2c Actions): Ajust. + + Trying with bigger grammars shows various phenomena: at 3000 (28Mb + of grammar file) bison is killed by my system, at 2000 (12Mb) bison + passes, but produces negative #line number, once fixed, GCC is + killed while compiling 14Mb, at 1500 (6.7 Mb of grammar, 8.2Mb of + C), it passes. + * src/state.h (state_h): Code input lines on ints, not shorts. + +2002-04-08 Akim Demaille + + * src/reduce.c (reduce_grammar): First reduce the nonterminals, + and then the grammar. + +2002-04-08 Akim Demaille + + * src/system.h: No longer using strndup. + +2002-04-07 Akim Demaille + + * src/muscle_tab.h (MUSCLE_INSERT_LONG_INT): New. + * src/output.c (output_table_data): Return the longest number. + (prepare_tokens): Output `token_number_max'). + * data/bison.simple, data/bison.c++ (b4_sint_type, b4_uint_type): + New. + Use them to define yy_token_number_type/TokenNumberType. + Use this type for yytranslate. + * tests/torture.at (Big triangle): Push the limit from 124 to + 253. + * tests/regression.at (Web2c Actions): Adjust. + +2002-04-07 Akim Demaille + + * tests/torture.at (Big triangle): New. + (GNU AWK Grammar, GNU Cim Grammar): Move to... + * tests/existing.at: here. + +2002-04-07 Akim Demaille + + * src/gram.h, src/gram.c (nitems): Remove, it is an alias of + nritems. + Adjust dependencies. + +2002-04-07 Akim Demaille + + * src/reader.c: Normalize increments to prefix form. + +2002-04-07 Akim Demaille + + * src/reader.c, symtab.c: Remove debugging code. + +2002-04-07 Akim Demaille + + Rename all the `bucket's as `symbol_t'. + + * src/gram.c, src/gram.h, src/lex.c, src/lex.h, src/output.c, + * src/reader.c, src/reader.h, src/reduce.c, src/state.h, + * src/symtab.c, src/symtab.h (bucket): Rename as... + (symbol_t): this. + (symbol_list_new, bucket_check_defined, bucket_make_alias) + (bucket_check_alias_consistence, bucket_pack, bucket_translation) + (bucket_new, bucket_free, hash_compare_bucket, hash_bucket) + (buckets_new, buckets_free, buckets_do): Rename as... + (symbol_list_new, symbol_check_defined, symbol_make_alias) + (symbol_check_alias_consistence, symbol_pack, symbol_translation) + (symbol_new, symbol_free, hash_compare_symbol_t, hash_symbol_t) + (symbols_new, symbols_free, symbols_do): these. + +2002-04-07 Akim Demaille + + Use lib/hash for the symbol table. + + * src/gram.c (ntokens): Initialize to 1, to reserve a slot for + EOF. + * src/lex.c (lex): Set the `number' member of new terminals. + * src/reader.c (bucket_check_defined, bucket_make_alias) + (bucket_check_alias_consistence, bucket_translation): New. + (reader, grammar_free, readgram, token_translations_init) + (packsymbols): Adjust. + (reader): Number the predefined tokens. + * src/reduce.c (inaccessable_symbols): Just use hard coded numbers + for predefined tokens. + * src/symtab.h (bucket): Remove all the hash table related + members. + * src/symtab.c (symtab): Replace by... + (bucket_table): this. + (bucket_new, bucket_free, hash_compare_bucket, hash_bucket) + (buckets_new, buckets_do): New. + +2002-04-07 Akim Demaille + + * src/gram.c (nitems, nrules, nsyms, ntokens, nvars, nritems) + (start_symbol, max_user_token_number, semantic_parser) + (error_token_number): Initialize. + * src/reader.c (grammar, start_flag, startval, typed, lastprec): + Initialize. + (reader): Don't. + (errtoken, eoftoken, undeftoken, axiom): Extern. + +2002-04-07 Akim Demaille + + * src/gram.h (rule_s): prec and precsym are now pointers + to the bucket giving the priority/associativity. + Member `associativity' removed: useless. + * src/reduce.c, src/conflicts.c: Adjust. + +2002-04-07 Akim Demaille + + * src/lalr.c, src/LR0.c, src/closure.c, src/gram.c, src/reduce.c: + Properly escape the symbols' TAG when outputting them. + +2002-04-07 Akim Demaille + + * src/lalr.h (LA): Is a bitsetv, not bitset*. + +2002-04-07 Akim Demaille + + * src/lalr.h, src/lalr.c (LAruleno): Replace with... + (LArule): this, which is an array to rule_t*. + * src/print.c, src/conflicts.c: Adjust. + +2002-04-07 Akim Demaille + + * src/gram.h (rule_t): Rename `number' as `user_number'. + `number' is a new member. + Adjust dependencies. + * src/reduce.c (reduce_grammar_tables): Renumber rule_t.number. + +2002-04-07 Akim Demaille + + As a result of the previous patch, it is no longer needed + to reorder ritem itself. + + * src/reduce.c (reduce_grammar_tables): Don't sort RITEM. + +2002-04-07 Akim Demaille + + Be sure never to walk through RITEMS, but use only data related to + the rules themselves. RITEMS should be banished. + + * src/output.c (output_token_translations): Rename as... + (prepare_tokens): this. + In addition to `translate', prepare the muscles `tname' and + `toknum', which were handled by... + (output_rule_data): this. + Remove, and move the remainder of its outputs into... + (prepare_rules): this new routines, which also merges content from + (output_gram): this. + (prepare_rules): Be sure never to walk through RITEMS. + (output_stos): Rename as... + (prepare_stos): this. + (output): Always invoke prepare_states, after all, just don't use it + in the output if you don't need it. + +2002-04-07 Akim Demaille + + * src/LR0.c (new_state): Display `nstates' as the name of the + newly created state. + Adjust to initialize first_state and last_state if needed. + Be sure to distinguish the initial from the final state. + (new_states): Create the itemset of the initial state, and use + new_state. + * src/closure.c (closure): Now that the initial state has its + items properly set, there is no need for a special case when + creating `ruleset'. + + As a result, now the rule 0, reducing to $axiom, is visible in the + outputs. Adjust the test suite. + + * tests/conflicts.at (Solved SR Conflicts) + (Unresolved SR Conflicts): Adjust. + * tests/regression.at (Web2c Report, Rule Line Numbers): Idem. + * tests/conflicts.at (S/R in initial): New. + +2002-04-07 Akim Demaille + + * src/LR0.c (allocate_itemsets): Don't loop over ritem: loop over + the RHS of the rules. + * src/output.c (output_gram): Likewise. + +2002-04-07 Akim Demaille + + * src/gram.h (rule_t): `lhs' is now a pointer to the symbol's + bucket. + Adjust all dependencies. + * src/reduce.c (nonterminals_reduce): Don't forget to renumber the + `number' of the buckets too. + * src/gram.h: Include `symtab.h'. + (associativity): Move to... + * src/symtab.h: here. + No longer include `gram.h'. + +2002-04-07 Akim Demaille + + * src/gram.h, src/gram.c (rules_rhs_length): New. + (ritem_longest_rhs): Use it. + * src/gram.h (rule_t): `number' is a new member. + * src/reader.c (packgram): Set it. + * src/reduce.c (reduce_grammar_tables): Move the useless rules at + the end of `rules', and count them out of `nrules'. + (reduce_output, dump_grammar): Adjust. + * src/print.c (print_grammar): It is no longer needed to check for + the usefulness of a rule, as useless rules are beyond `nrules + 1'. + * tests/reduce.at (Reduced Automaton): New test. + +2002-04-07 Akim Demaille + + * src/reduce.c (inaccessable_symbols): Fix a buglet: because of a + lacking `+ 1' to nrules, Bison reported as useless a token if it + was used solely to set the precedence of the last rule... + +2002-04-07 Akim Demaille + + * data/bison.c++, data/bison.simple: Don't output the current file + name in #line, to avoid useless diffs between two identical + outputs under different names. + +2002-04-07 Akim Demaille + + * src/closure.c, src/print.c, src/reader.c, src/reduce.c: + Normalize loops to using `< nrules + 1', not `<= nrules'. + +2002-04-07 Akim Demaille + + * TODO: Update. + +2002-04-07 Akim Demaille + + * src/output.c, src/reader.c, src/symtab.c, src/symtab.h: Rename + bucket.value as bucket.number. + +2002-04-07 Akim Demaille + + * src/closure.c, src/derives.c, src/gram.h, src/lalr.c, + * src/nullable.c, src/output.c, src/print.c, src/print_graph.c, + * src/reader.c, src/reduce.c: Let rule_t.rhs point directly to the + RHS, instead of being an index in RITEMS. + +2002-04-04 Paul Eggert + + * doc/bison.texinfo: Update copyright date. + (Rpcalc Lexer, Symbols, Token Decl): Don't assume ASCII. + (Symbols): Warn about running Bison in one character set, + but compiling and/or running in an incompatible one. + Warn about character code 256, too. + +2002-04-03 Paul Eggert + + * src/bison.data (YYSTACK_ALLOC): Depend on whether + YYERROR_VERBOSE is nonzero, not whether it is defined. + + Merge changes from bison-1_29-branch. + +2002-03-20 Paul Eggert + + Merge fixes from Debian bison_1.34-1.diff. + + * configure.in (AC_PREREQ): 2.53. + +2002-03-20 Akim Demaille + + * src/conflicts.c (log_resolution): Argument `resolution' is const. + +2002-03-19 Paul Eggert + + * src/bison.simple (YYCOPY): New macro. + (YYSTACK_RELOCATE): Use it. + Remove Type arg; no longer needed. All callers changed. + (yymemcpy): Remove; no longer needed. + + * Makefile.am (AUTOMAKE_OPTIONS): 1.6. + * doc/Makefile.am (AUTOMAKE_OPTIONS): Remove. + +2002-03-19 Akim Demaille + + Test and fix the #line outputs. + + * tests/atlocal.at (GCC): New. + * tests/synclines.at (AT_TEST_SYNCLINE): New macro. + (Prologue synch line, ,%union synch line, Postprologue synch line) + (Action synch line, Epilogue synch line): New tests. + * src/reader.c (parse_union_decl): Define the muscle stype_line. + * data/bison.simple, data/bison.c++: Use it. + +2002-03-19 Akim Demaille + + * tests/regression.at (%nonassoc and eof, Unresolved SR Conflicts) + (Solved SR Conflicts, %expect not enough, %expect right) + (%expect too much): Move to... + * tests/conflicts.at: this new file. + +2002-03-19 Akim Demaille + + * data/m4sugar/m4sugar.m4: Update from CVS Autoconf. + * data/bison.simple, data/bison.c++: Handle the `#define' part, so + that we can move to enums for instance. + * src/output.c (token_definitions_output): Output a list of + `token-name, token-number' instead of the #define. + (output_skeleton): Name this list `b4_tokens', not `b4_tokendefs'. + +2002-03-14 Akim Demaille + + Use Gettext 0.11.1. + +2002-03-09 Robert Anisko + + * data/bison.c++: Make the user able to add members to the generated + parser by subclassing. + +2002-03-05 Robert Anisko + + * src/reader.c (read_additionnal_code): `c' should be an integer, not + a character. + Reported by Nicolas Tisserand and Nicolas Burrus. + +2002-03-04 Robert Anisko + + * src/reader.c: Warn about lacking semi-colons, do not complain. + +2002-03-04 Robert Anisko + + * data/bison.c++: Remove a debug line. + +2002-03-04 Robert Anisko + + * data/bison.c++: Unmerge value as yylval and value as yyval. Unmerge + location as yylloc and location as yyloc. Use YYLLOC_DEFAULT, and + provide a default implementation. + +2002-03-04 Akim Demaille + + * tests/input.at (Invalid $n, Invalid @n): Add the ending `;'. + * tests/output.at (AT_CHECK_OUTPUT): Likewise. + * tests/headers.at (AT_TEST_CPP_GUARD_H): Ditto. + * tests/semantic.at (Parsing Guards): Similarly. + * src/reader.at (readgram): Complain if the last rule is not ended + with a semi-colon. + +2002-03-04 Akim Demaille + + * src/warshall.h, src/warshall.c (bitmatrix_print): Move to... + * src/closure.c: here. + (set_firsts): Use bitsetv_reflexive_transitive_closure instead of + RTC. + * src/warshall.h, src/warshall.c: Remove. + * tests/sets.at (Broken Closure): Adjust. + +2002-03-04 Akim Demaille + + * src/output.c (output_skeleton): tempdir is const. + bytes_read is unused. + +2002-03-04 Akim Demaille + + * lib/bbitset.h, lib/bitset.c, lib/bitset.h, lib/bitsetv.c, + * lib/bitsetv.h, lib/ebitset.c, lib/lbitset.c, lib/sbitset.c: + Update. + From Michael Hayes. + +2002-03-04 Akim Demaille + + * src/closure.c (closure): `r' is unused. + +2002-03-04 Akim Demaille + + * tests/sets.at (Broken Closure): Add the ending `;'. + * src/reader.at (readgram): Complain if a rule is not ended with a + semi-colon. + +2002-03-04 Akim Demaille + + * src/conflicts.c (set_conflicts): Use bitset_disjoint_p. + (count_sr_conflicts): Use bitset_count. + * src/reduce.c (inaccessable_symbols): Ditto. + (bits_size): Remove. + * src/warshall.h, src/warshall.c: Convert to bitsetv. + +2002-03-04 Akim Demaille + + * src/closure.c, src/conflicts.c, src/lalr.c, src/print.c, + * src/reduce.c: Remove the `bitset_zero's following the + `bitset_create's, as now it is performed by the latter. + +2002-03-04 Akim Demaille + + * lib/bitset.c, lib/bitset.h, lib/bitsetv.c, lib/bitsetv.h, + * lib/ebitset.c, lib/ebitset.h, lib/lbitset.c, lib/lbitset.h, + * lib/sbitset.c, lib/sbitset.h, lib/bbitset.h: Update from the + latest sources from Michael. + +2002-03-04 Akim Demaille + + * src/output.c (output): Don't free the grammar. + * src/reader.c (grammar_free): New. + * src/main.c (main): Call it and don't free symtab here. + +2002-03-04 Akim Demaille + + * src/lex.c (parse_percent_token): Be sure to 0-end token_buffer + before returning. + Reported by Benoit Perrot. + +2002-03-04 Akim Demaille + + Use bitset operations when possible, not loops over bits. + + * src/conflicts.c (set_conflicts, count_sr_conflicts): Use + bitset_or. + * src/print.c (print_reductions): Use bitset_and, bitset_andn. + * src/reduce.c (useless_nonterminals): Formatting changes. + * src/warshall.c (TC): Use bitset_or. + +2002-03-04 Akim Demaille + + * src/lalr.h, src/lalr.c (tokensetsize): Remove, unused. + * src/system.h (BITS_PER_WORD, WORDSIZE, SETBIT, RESETBIT, BITISSET): + Ditto. + +2002-03-04 Akim Demaille + + * src/lalr.c (F): Now a bitset*. + Adjust all dependencies. + +2002-03-04 Akim Demaille + + * src/conflicts.c (shiftset, lookaheadset): Now bitset. + Adjust all dependencies. + +2002-03-04 Akim Demaille + + * src/L0.c, src/LR0.h (nstates): Be size_t. + Adjust comparisons (signed vs unsigned). + * src/conflics.c, src/lalr.c, src/lalr.h, src/output.c (LA): Now a + bitset*. + Adjust all dependencies. + +2002-03-04 Akim Demaille + + * src/closure.c (firsts): Now, also a bitset. + Adjust all dependencies. + (varsetsize): Remove, now unused. + * src/warshall.h, src/warshall.c: Now work on arrays of bitsets. + +2002-03-04 Akim Demaille + + * src/print.c: Convert to use bitset.h, not hand coded iterations + over ints. + +2002-03-04 Akim Demaille + + * src/reduce.c: Convert to use bitset.h, not hand coded BSet. + +2002-03-04 Akim Demaille + + * src/closure.c (ruleset): Be a bitset. + (rulesetsize): Remove. + +2002-03-04 Akim Demaille + + * lib/bitset-int.h, lib/bitset.c, lib/bitset.h, lib/bitsetv.c, + * lib/bitsetv.h, lib/ebitset.c, lib/ebitset.h, lib/lbitset.c, + * lib/lbitset.h, lib/sbitset.c, lib/sbitset.h: New. + * src/closure.c (fderives): Be an array of bitsets. + +2002-02-28 Robert Anisko + + * data/bison.c++: Merge the two generated headers. Insert a copyright + notice in each output file. + +2002-02-28 Akim Demaille + + * data/bison.c++: Copy the prologue of bison.simple to fetch + useful M4 definitions, such as b4_header_guard. + +2002-02-25 Akim Demaille + + * src/getargs.c (version): Give the name of the authors, and use a + translator friendly scheme for the bgr + copyright notice. + +2002-02-25 Akim Demaille + + * src/output.c (header_output): Remove, now handled completely via + M4. + +2002-02-25 Akim Demaille + + * m4/m4.m4: New, from CVS Autoconf. + * configure.in: Invoke it. + * src/output.c (output_skeleton): Use its result instead of the + hard coded name. + +2002-02-25 Akim Demaille + + * lib/tempname.c, lib/mkstemp.c, m4/mkstemp.m4: New, stolen from + Fileutils 4.1.5. + * configure.in: Invoke UTILS_FUNC_MKSTEMP. + * src/output.c (output_skeleton): Use mkstemp to create a real + temporary file. + Move the filling of `skeleton' and its muscle to... + (prepare): here. + (output): Move the definition of the prologue muscle to... + (prepare): here. + * src/system.h (DEFAULT_TMPDIR): New. + +2002-02-14 Paul Eggert + + Remove the support for C++ namespace cleanliness; it was + causing more problems than it was curing, since it didn't work + properly on some nonstandard C++ compilers. This can wait + for a proper C++ parser. + + * NEWS: Document this. + * doc/bison.texinfo (Bison Parser, Debugging): Remove special mention + of C++, as it's treated like C now. + * src/bison.simple (YYSTD): Remove. + (YYSIZE_T, YYFPRINTF, YYPARSE_PARAM_ARG, YYPARSE_PARAM_DECL): + Treat C++ just like Standard C instead of trying to support + namespace cleanliness. + +2002-02-14 Akim Demaille + + * tests/regression.at (else): Adjust to Andreas' change. + +2002-02-14 Akim Demaille + + * lib/Makefile.am (EXTRA_DIST): Ship strnlen.c. + +2002-02-13 Andreas Schwab + + * src/output.c (output_rule_data): Don't output NULL, it might + not be defined yet. + +2002-02-11 Robert Anisko + + * data/bison.c++ (YYDEBUG, YYERROR_VERBOSE): After the prologue. + (Copyright notice): Update. + +2002-02-11 Akim Demaille + + * tests/regression.at (%nonassoc and eof): Don't include + nonportable headers. + +2002-02-08 Robert Anisko + + * data/bison.c++: Correct error recovery. Make the user able to + initialize the starting location. + +2002-02-07 Akim Demaille + + * tests/input.at: New. + +2002-02-07 Robert Anisko + + * data/bison.c++: Replace some direct m4 expansions by constants. Be + more consistent when naming methods and variables. Put preprocessor + directives around tables only needed for debugging. + +2002-02-07 Robert Anisko + + * data/bison.c++ (yy::b4_name::print_): New method, replaces yyprint in + C++ parsers. + (yy::b4_name::parse): Use print_. + +2002-02-07 Robert Anisko + + * data/bison.c++ (yy::b4_name::parse): Error recovery is back. + +2002-02-07 Robert Anisko + + * data/bison.c++ (yy::b4_name::error_): New method, replaces yyerror in + C++ parsers. + (yy::b4_name::parse): Build verbose error messages, and use error_. + +2002-02-06 Robert Anisko + + * data/bison.c++: Fix m4 quoting in comments. + +2002-02-06 Robert Anisko + + * data/bison.c++: Adjust the parser code. Fix some muscles that were + not expanded by m4. + +2002-02-05 Akim Demaille + + * data/bison.c++: Adjust to the M4 back end. + More is certainly needed. + +2002-02-05 Akim Demaille + + Give a try to M4 as a back end. + + * lib/readpipe.c: New, from wdiff. + * src/Makefile.am (DEFS): Define PKGDATADIR, not BISON_SIMPLE and + BISON_HAIRY. + * src/system.h (BISON_HAIRY, BISON_SIMPLE): Remove the DOS and VMS + specific values. Now it is m4 that performs the lookup. + * src/parse-skel.y: Remove. + * src/muscle_tab.c, src/muscle_tab.h (muscles_m4_output): New. + * src/output.c (actions_output, guards_output) + (token_definitions_output): No longer keeps track of the output + line number, hence remove the second argument. + (guards_output): Check against the guard member of a rule, not the + action member. + Adjust callers. + (output_skeleton): Don't look for the skeleton location, let m4 do + that. + Create `/tmp/muscles.m4'. This is temporary, a proper temporary + file will be used. + Invoke `m4' on m4sugar.m4, muscles.m4, and the skeleton. + (prepare): Given that for the time being changesyntax is not + usable in M4, rename the muscles using `-' to `_'. + Define `defines_flag', `output_parser_name' and `output_header_name'. + * src/output.h (actions_output, guards_output) + (token_definitions_output): Adjust prototypes. + * src/scan-skel.l: Instead of scanning the skeletons, it now + processes the output of m4: `__oline__' and `#output'. + * data/bison.simple: Adjust to be used by M4(sugar). + * tests/Makefile.am: Use check_SCRIPTS to make sure `bison' is up + to date. + * tests/bison.in: Use the secrete envvar `BISON_PKGDATADIR' + instead of the dead `BISON_SIMPLE' and `BISON_HAIRY'. + * data/m4sugar/m4sugar.m4, data/m4sugar/version.m4: New, + shamelessly stolen from CVS Autoconf. + +2002-02-05 Akim Demaille + + * lib/hash.c, lib/hash.h: Replace with Fileutils 4.1's version. + * configure.in: Check for the declarations of free and malloc. + * src/muscle_tab.c: Adjust. + +2002-02-05 Akim Demaille + + * src/muscle_tab.c (muscle_init): Don't default to NULL muscle + which have no values. + +2002-02-05 Akim Demaille + + * src/bison.simple, src/bison.hairy, src/bison.c++: Move to... + * data/: here. + +2002-01-29 Paul Eggert + + * src/bison.simple (YYSIZE_T): Do not define merely because + YYSTACK_USE_ALLOCA is nonzero or alloca or _ALLOCA_H are defined. + On some platforms, does not declare YYSTD (size_t). + +2002-01-27 Akim Demaille + + Fix `%nonassoc and eof'. + + * src/state.c (errs_dup): Aaaah! The failure was due to bytes + which were not properly copied! Replace + memcpy (res->errs, src->errs, src->nerrs); + with + memcpy (res->errs, src->errs, src->nerrs * sizeof (src->errs[0])); + !!! + * tests/regression.at (%nonassoc and eof): Adjust to newest + Autotest: `.' is not in the PATH. + +2002-01-27 Akim Demaille + + * tests/sets.at (AT_EXTRACT_SETS): New. + (Nullable): Use it. + (Firsts): New. + +2002-01-26 Akim Demaille + + * tests/actions.at, tests/calc.at, tests/headers.at, + * tests/torture.at: Adjust to the newest Autotest which no longer + forces `.' in the PATH. + +2002-01-25 Akim Demaille + + * tests/regression.at (%nonassoc and eof): New. + Suggested by Robert Anisko. + +2002-01-24 Akim Demaille + + Bison dumps core when trying to complain about broken input files. + Reported by Cris van Pelt. + + * src/lex.c (parse_percent_token): Be sure to set token_buffer. + * tests/regression.at (Invalid input: 1, Invalid input: 2): Merge + into... + (Invalid inputs): Strengthen: exercise parse_percent_token. + +2002-01-24 Robert Anisko + + * src/Makefile.am: Add bison.c++. + * src/bison.c++: New skeleton. + +2002-01-21 Paolo Bonzini + + * po/it.po: New. + +2002-01-21 Kees Zeelenberg + + * src/files.c (skeleton_find) [MSDOS]: Fix cp definition. + +2002-01-20 Marc Autret + + * src/files.c (compute_output_file_names): Fix + +2002-01-20 Marc Autret + + * tests/output.at: New test. + * src/files.c (compute_base_names): Don't map extensions when + the YACC flag is set, use defaults. + Reported by Evgeny Stambulchik. + +2002-01-20 Marc Autret + + * src/system.h: Need to define __attribute__ away for non-GCC + compilers as well (i.e. the vendor C compiler). + Suggested by Albert Chin-A-Young. + +2002-01-11 Tim Van Holder + + * lib/hash.h, lib/hash.c: Renamed __P to PARAMS and used the + canonical definition. + * src/system.h: Use the canonical definition for PARAMS (avoids + a conflict with the macro from lib/hash.h). + +2002-01-11 Akim Demaille + + * configure.in: Use AC_FUNC_STRNLEN. + Fixes the failures observed on AIX 4.3 by H.Merijn Brand. + +2002-01-09 Akim Demaille + + * src/files.c, src/files.h (output_infix): New. + (tab_extension): Remove. + (compute_base_names): Compute the former, drop the latter. + * src/output.c (prepare): Insert the muscles `output-infix', and + `output-suffix'. + * src/parse-skel.y (string, string.1): New. + (section.header): Use it. + (section.yacc): Remove. + (prefix): Remove too. + * src/scan-skel.l: Adjust. + * src/bison.simple, src/bison.hairy: Adjust. + +2002-01-09 Akim Demaille + + * configure.in (WERROR_CFLAGS): Compute it. + * src/Makefile.am (CFLAGS): Pass it. + * tests/atlocal.in (CFLAGS): Idem. + * src/files.c: Fix a few warnings. + (get_extension_index): Remove, unused. + +2002-01-08 Akim Demaille + + * src/getargs.c (AS_FILE_NAME): New. + (getargs): Use it to convert DOSish file names. + * src/files.c (base_name): Rename as full_base_name to avoid + clashes with `base_name ()'. + (filename_split): New. + (compute_base_names): N-th rewrite, using filename_split. + +2002-01-08 Akim Demaille + + * lib/basename.c, lib/dirname.h, lib/dirname.c, lib/memrchr.c: + New, stolen from the Fileutils 4.1. + * lib/Makefile.am (libbison_a_SOURCES): Adjust. + * configure.in: Check for the presence of memrchr, and of its + prototype. + +2002-01-07 Tim Van Holder + + * lib/hash.h (__P): Added definition for this macro. + * src/Makefile.am: Add parse-skel.c and scan-skel.c to + BUILT_SOURCES, to ensure they are generated first. + * src/parse-skel.y: Use YYERROR_VERBOSE instead of + %error-verbose to allow bootstrapping with bison 1.30x. + +2002-01-06 Akim Demaille + + * src/reader.c (parse_braces): Don't fetch the next char, the + convention is to fetch on entry. + * tests/torture.at (GNU Cim Grammar): Reintroduce their weird + 'switch' without a following semicolon. + * tests/regression.at (braces parsing): New. + +2002-01-06 Akim Demaille + + Bison is dead wrong in its RR conflict reports. + + * tests/torture.at (GNU Cim Grammar): New. + * src/conflicts.c (count_rr_conflicts): Fix. + +2002-01-06 Akim Demaille + + Creating package.m4 from configure.ac causes too many problems. + + * tests/Makefile.am (package.m4): Create it by hand, + AC_CONFIG_TESTDIR no longer does in the most recent CVS Autoconf. + +2002-01-06 Akim Demaille + + * src/Makefile.am (bison_SOURCES): Add parse-skel.h and + skeleton.h. + +2002-01-04 Paul Eggert + + * doc/bison.texinfo (Debugging): + Remove YYSTDERR; it's no longer defined or used. + Also, s/cstdio.h/cstdio/. + +2002-01-03 Akim Demaille + + * tests/bison.in, tests/atlocal.in: Adjust to CVS Autoconf. + +2002-01-03 Akim Demaille + + * src/parse-skel.y (process_skeleton): Don't bind the parser's + tracing code to --trace, wait for a better --trace option, with + args. + +2002-01-03 Akim Demaille + + * src/bison.simple (YYSTDERR): Remove, replace `stderr'. + The ISO C++ standard is extremely clear about it: stderr is + considered a macro, not a regular symbol (see table 94 `Header + synopsis', [lib.c.files] 27.8.2 C Library files). + Therefore std:: does not apply to it. It still does with fprintf. + Also, s/cstdio.h/cstdio/. + +2002-01-03 Akim Demaille + + * lib/quotearg.c: Use `#include "..."' instead of `#include <...>' + for non system headers. + +2002-01-02 Akim Demaille + + Equip the skeleton chain with location tracking, runtime trace, + pure parser and scanner. + + * src/parse-skel.y: Request a pure parser, locations, and prefix + renaming. + (%union): Having several members with the same type does not help + type mismatches, simplify. + (YYPRINT, yyprint): New. + (yyerror): ``Rename'' (there is a #define yyerror skel_error) as... + (skel_error): this. + Handle locations. + * src/scan-skel.l: Adjust to these changes. + * src/skeleton.h (LOCATION_RESET, LOCATION_LINES, LOCATION_STEP) + (LOCATION_PRINT, skel_control_t): New. + +2001-12-30 Akim Demaille + + * src/parse-skel.y: Get rid of the shift/reduce conflict: + replace `gb' with BLANKS. + * src/scan-skel.l: Adjust. + +2001-12-30 Akim Demaille + + * src/system.h: We don't need nor want bcopy. + Throw away MS-DOS crap: we don't need getpid. + * configure.in: We don't need strndup. It was even causing + problems: because Flex includes the headers *before* us, + _GNU_SOURCE is not defined by config.h, and therefore strndup was + not visible. + * lib/xstrndup.c: New. + * src/scan-skel.l: Use it. + Be sure to initialize yylval.muscle member when scanning a MUSCLE. + * src/parse-skel.y: Use %directives instead of #defines. + +2001-12-30 Akim Demaille + + * src/skeleton.h: New. + * src/output.c (output_parser, output_master_parser): Remove, dead + code. + * src/output.h (get_lines_number, actions_output, guards_output) + (token_definitions_output): Prototype them. + * src/parse-skel.y: Add the license notice. + Include output.h and skeleton.h. + (process_skeleton): Returns void, and takes a single parameter. + * src/scan-skel.l: Add the license notice. + Include skeleton.h. + Don't use %option yylineno: it seems that then Flex imagines + REJECT has been used, and therefore it won't reallocate its + buffers (which makes no other sense to me than a bug). It results + in warnings for `unused: yy_flex_realloc'. + 2001-12-30 Robert Anisko * src/muscle_tab.h (MUSCLE_INSERT_INT, MUSCLE_INSERT_STRING) @@ -19,7 +2514,7 @@ functions are used in the skeleton parser. (tab_extension): New. (compute_base_names): Use the computations done in this function - to guess if the generated parsers should have '.tab' in their + to guess if the generated parsers should have '.tab' in their names. (short_base_name): No longer static. @@ -31,7 +2526,7 @@ * configure.in: Use AM_PROG_LEX and AC_PROG_YACC. - * src/Makefile.am (bison_SOURCES): Add scan-skel.l and + * src/Makefile.am (bison_SOURCES): Add scan-skel.l and parse-skel.y. * src/parse-skel.y: New file. @@ -5202,3 +7697,23 @@ 1987-12-16 Richard Stallman * REFERENCES: entered into RCS +----- + +Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002 Free Software Foundation, Inc. + +This file is part of GNU Autoconf. + +GNU Autoconf is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 2, or (at your option) +any later version. + +GNU Autoconf is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU General Public License for more details. + +You should have received a copy of the GNU General Public License +along with autoconf; see the file COPYING. If not, write to +the Free Software Foundation, Inc., 59 Temple Place - Suite 330, +Boston, MA 02111-1307, USA.