+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)
+ (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 <akim@epita.fr>
+
+ * 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 <akim@epita.fr>
+
+ * 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 <akim@epita.fr>
+
+ * 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 <akim@epita.fr>
+
+ * 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 <akim@epita.fr>
+
+ * 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 <akim@epita.fr>
+
+ * 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 <akim@epita.fr>
+
+ * src/scan-gram.l (YY_OBS_FINISH): Don't set yylval.
+ Adjust all callers.
+ (scanner_last_string_free): New.
+
+2002-06-11 Akim Demaille <akim@epita.fr>
+
+ * 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 <akim@epita.fr>
+
+ 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 <akim@epita.fr>
+
+ * 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 <akim@epita.fr>
+
+ * 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 <akim@epita.fr>
+
+ * src/reader.c (grammar_midrule_action): New, Eved out from
+ (readgram): here.
+
+2002-06-11 Akim Demaille <akim@epita.fr>
+
+ * 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 <akim@epita.fr>
+
+ * 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 <akim@epita.fr>
+
+ 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 <akim@epita.fr>
+
+ * 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 <akim@epita.fr>
+
+ * 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 <akim@epita.fr>
+
+ 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 <akim@epita.fr>
+
+ * 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 <akim@epita.fr>
+
+ 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 <akim@epita.fr>
+
+ * src/muscle_tab.c (muscle_insert, muscle_find): Declarations,
+ then statements.
+
+2002-06-03 Akim Demaille <akim@epita.fr>
+
+ * 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 <akim@epita.fr>
+
+ * data/bison.c++: Use C++ ostreams.
+ (cdebug_): New member.
+
+2002-05-28 Akim Demaille <akim@epita.fr>
+
+ * src/output.c (output_skeleton): Be sure to allocate enough room
+ for `/' _and_ for `\0' in full_skeleton.
+
+2002-05-28 Akim Demaille <akim@epita.fr>
+
+ * data/bison.c++: Catch up with bison.simple:
+ 2002-05-24 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
+ and Paul Eggert <eggert@twinsun.com>: `error' handing.
+ 2002-05-26 Akim Demaille <akim@epita.fr>: stos_, token_number_,
+ and popping traces.
+
+2002-05-27 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
+
+ * 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 <Hilfinger@CS.Berkeley.EDU>
+
+ * src/conflicts.c (log_resolution): Correct typo:
+ obstack_printf should be obstack_fgrow1.
+
+2002-05-26 Akim Demaille <akim@epita.fr>
+
+ * 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 <akim@epita.fr>
+
+ * 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 <akim@epita.fr>
+
+ * 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 <akim@epita.fr>
+
+ * 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 <Hilfinger@CS.Berkeley.EDU>
+ and Paul Eggert <eggert@twinsun.com>
+
+ * 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 <Hilfinger@CS.Berkeley.EDU>
+
+ * 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 <florian@edamail.fishkill.ibm.com>
+
+ * src/reader.c (parse_action): Use copy_character instead of
+ obstack_1grow.
+
+2002-05-13 Akim Demaille <akim@epita.fr>
+
+ * tests/regression.at (Token definitions): Prototype yylex and
+ yyerror.
+
+2002-05-12 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
+
+ * 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 <akim@epita.fr>
+
+ * tests/synclines.at: Be sure to prototype yylex and yyerror to
+ avoid GCC warnings.
+
+2002-05-07 Akim Demaille <akim@epita.fr>
+
+ 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 <akim@epita.fr>
+
+ * 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 <akim@epita.fr>
+
+ * src/muscle_tab.c (muscle_m4_output): Must return TRUE for
+ hash_do_for_each.
+
+2002-05-06 Akim Demaille <akim@epita.fr>
+
+ * 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 <akim@epita.fr>
+
+ * src/reader.c (packgram): No longer end `ritem' with a 0
+ sentinel: it is not used.
+
+2002-05-05 Akim Demaille <akim@epita.fr>
+
+ 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 <akim@epita.fr>
+
+ * tests/torture.at (Many lookaheads): New test.
+
+2002-05-05 Akim Demaille <akim@epita.fr>
+
+ * 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 <akim@epita.fr>
+
+ * 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 <akim@epita.fr>
+
+ * 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 <eggert@twinsun.com>
+
+ * data/bison.simple (b4_token_defines): Also define YYTOKENTYPE
+ for K&R C.
+
+2002-05-03 gettextize <bug-gnu-gettext@gnu.org>
+
+ * Makefile.am (SUBDIRS): Remove intl.
+ (EXTRA_DIST): Add config/config.rpath.
+
+2002-05-03 Akim Demaille <akim@epita.fr>
+
+ * data/bison.simple (m4_if): Don't output empty enums.
+ And actually, output valid enum definitions :(.
+
+2002-05-03 Akim Demaille <akim@epita.fr>
+
+ * 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 <akim@epita.fr>
+
+ * configure.in (GETTEXT_VERSION): New.
+ Suggested by Bruno Haible for the forthcoming Gettext 0.10.3.
+
+2002-05-03 Akim Demaille <akim@epita.fr>
+
+ * 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 <akim@epita.fr>
+
+ * data/m4sugar/m4sugar.m4: Update from CVS Autoconf.
+
+2002-05-02 Robert Anisko <robert@lrde.epita.fr>
+
+ * data/bison.c++: Adapt expansion of $s and @s to the C++ parser.
+ Update the stack class, give a try to deque as the default container.
+
+2002-05-02 Akim Demaille <akim@epita.fr>
+
+ * data/bison.simple (yyparse): Do not implement @$ = @1.
+ (YYLLOC_DEFAULT): Adjust to do it.
+ * doc/bison.texinfo (Location Default Action): Fix.
+
+2002-05-02 Akim Demaille <akim@epita.fr>
+
+ * src/reader.c (parse_braces): Merge into...
+ (parse_action): this.
+
+2002-05-02 Akim Demaille <akim@epita.fr>
+
+ * configure.in (ALL_LINGUAS): Remove.
+ * po/LINGUAS, hr.po: New.
+
+2002-05-02 Akim Demaille <akim@epita.fr>
+
+ 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 <akim@epita.fr>
+
+ * 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 <akim@epita.fr>
+
+ * configure.in (AC_INIT): Bump to 1.49b.
+ (AM_INIT_AUTOMAKE): Short invocation.
+
+2002-05-02 Akim Demaille <akim@epita.fr>
+
+ Version 1.49a.
+
+2002-05-01 Akim Demaille <akim@epita.fr>
+
+ * src/skeleton.h: Remove.
+
+2002-05-01 Akim Demaille <akim@epita.fr>
+
+ * src/skeleton.h: Fix the #endif.
+ Reported by Magnus Fromreide.
+
+2002-04-26 Paul Eggert <eggert@twinsun.com>
+
+ * 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 <robert@lrde.epita.fr>
+
+ * 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 <akim@epita.fr>
+
+ * tests/sets.at (AT_EXTRACT_SETS): Sed portability issue: no space
+ between `!' and the command.
+ Reported by Paul Eggert.
+
+2002-04-24 Robert Anisko <robert@lrde.epita.fr>
+
+ * 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 <eggert@twinsun.com>
+
+ * 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 <akim@epita.fr>
+
+ * 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 <akim@epita.fr>
+
+ * 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 <akim@epita.fr>
+
+ * 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 <akim@epita.fr>
+
+ * 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 <akim@epita.fr>
+
+ * 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 <akim@epita.fr>
+
+ 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 <akim@epita.fr>
+
+ * src/output.h, src/output.c (get_lines_number): Remove.
+
+2002-04-19 Akim Demaille <akim@epita.fr>
+
+ * 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 <akim@epita.fr>
+
+ * doc/bison.texinfo: Remove the uses of the obsolete @refill.
+
+2002-04-10 Akim Demaille <akim@epita.fr>
+
+ * src/system.h: Rely on HAVE_LIMITS_H.
+ Suggested by Paul Eggert.
+
+2002-04-09 Akim Demaille <akim@epita.fr>
+
+ * 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 <akim@epita.fr>
+
+ * 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 <akim@epita.fr>
+
+ * 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 <akim@epita.fr>
+
+ * 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 <akim@epita.fr>
+
+ * src/reduce.c (reduce_grammar): First reduce the nonterminals,
+ and then the grammar.
+
+2002-04-08 Akim Demaille <akim@epita.fr>
+
+ * src/system.h: No longer using strndup.
+
+2002-04-07 Akim Demaille <akim@epita.fr>
+
+ * 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.
+
projects / bison.git / blobdiff