]> git.saurik.com Git - bison.git/blobdiff - ChangeLog
* tests/actions.at (Destructors): Augment to test locations.
[bison.git] / ChangeLog
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+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.