X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/2f1afb737f4b8e0a4ea3f5d02e25858cc709e466..9757c359efc607b6d9e4675447a7b1afd873bc6e:/ChangeLog diff --git a/ChangeLog b/ChangeLog index 02a0e19d..ab0b47da 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,375 @@ +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.