Akim Demaille [Sun, 30 Jun 2002 17:29:36 +0000 (17:29 +0000)]
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'.
Akim Demaille [Sun, 30 Jun 2002 17:27:14 +0000 (17:27 +0000)]
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.
Akim Demaille [Fri, 28 Jun 2002 08:41:45 +0000 (08:41 +0000)]
* 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.
(merger_output): static.
Akim Demaille [Thu, 20 Jun 2002 11:46:59 +0000 (11:46 +0000)]
* 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.
Akim Demaille [Thu, 20 Jun 2002 09:47:44 +0000 (09:47 +0000)]
* 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.
Akim Demaille [Thu, 20 Jun 2002 09:08:37 +0000 (09:08 +0000)]
* 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!).
Akim Demaille [Wed, 19 Jun 2002 12:03:22 +0000 (12:03 +0000)]
* 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.
Akim Demaille [Wed, 19 Jun 2002 08:22:49 +0000 (08:22 +0000)]
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.
Akim Demaille [Tue, 18 Jun 2002 10:00:36 +0000 (10:00 +0000)]
* data/bison.simple (yyoverflowlab): #ifndef yyoverflow, so that
there are no `label `yyoverflowlab' defined but not used' warnings
when yyoverflow is defined.
Akim Demaille [Tue, 18 Jun 2002 09:55:35 +0000 (09:55 +0000)]
* 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.
Akim Demaille [Tue, 18 Jun 2002 09:12:58 +0000 (09:12 +0000)]
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.
Akim Demaille [Mon, 17 Jun 2002 08:43:12 +0000 (08:43 +0000)]
* 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.
Akim Demaille [Mon, 17 Jun 2002 07:05:12 +0000 (07:05 +0000)]
* 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.
Akim Demaille [Mon, 17 Jun 2002 07:04:24 +0000 (07:04 +0000)]
* 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.
Akim Demaille [Sat, 15 Jun 2002 18:24:08 +0000 (18:24 +0000)]
* 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.
Akim Demaille [Sat, 15 Jun 2002 18:23:12 +0000 (18:23 +0000)]
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.
Akim Demaille [Sat, 15 Jun 2002 18:21:46 +0000 (18:21 +0000)]
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.
Akim Demaille [Sat, 15 Jun 2002 18:21:11 +0000 (18:21 +0000)]
* 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.
Akim Demaille [Fri, 14 Jun 2002 17:38:14 +0000 (17:38 +0000)]
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.
Akim Demaille [Fri, 14 Jun 2002 17:36:24 +0000 (17:36 +0000)]
* 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.
Akim Demaille [Fri, 14 Jun 2002 17:29:17 +0000 (17:29 +0000)]
* 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.
Akim Demaille [Tue, 11 Jun 2002 21:46:16 +0000 (21:46 +0000)]
* 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.
Akim Demaille [Tue, 11 Jun 2002 21:43:18 +0000 (21:43 +0000)]
* 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.
Akim Demaille [Tue, 11 Jun 2002 20:16:05 +0000 (20:16 +0000)]
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.
Akim Demaille [Tue, 11 Jun 2002 08:08:36 +0000 (08:08 +0000)]
* 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.
Akim Demaille [Tue, 11 Jun 2002 08:01:41 +0000 (08:01 +0000)]
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.
Akim Demaille [Mon, 10 Jun 2002 08:38:10 +0000 (08:38 +0000)]
* 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.
Akim Demaille [Mon, 10 Jun 2002 08:37:55 +0000 (08:37 +0000)]
* 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.
Akim Demaille [Mon, 10 Jun 2002 08:37:30 +0000 (08:37 +0000)]
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.
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