X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/ec2da99ffe7140db191d6683c493ad6936174311..a4b36db458949986bd80257e2e253728ba4d31a8:/ChangeLog?ds=sidebyside

diff --git a/ChangeLog b/ChangeLog
index 6a336673..54b7fd8b 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,391 @@
+2001-12-30  Akim Demaille  <akim@epita.fr>
+
+	* src/system.h: We don't need nor want bcopy.
+	Throw away MS-DOS crap: we don't need getpid.
+	* configure.in: We don't need strndup.  It was even causing
+	problems: because Flex includes the headers *before* us,
+	_GNU_SOURCE is not defined by config.h, and therefore strndup was
+	not visible.
+	* lib/xstrndup.c: New.
+	* src/scan-skel.l: Use it.
+	Be sure to initialize yylval.muscle member when scanning a MUSCLE.
+	* src/parse-skel.y: Use %directives instead of #defines.
+
+	
+2001-12-30  Akim Demaille  <akim@epita.fr>
+
+	* src/skeleton.h: New.
+	* src/output.c (output_parser, output_master_parser): Remove, dead
+	code.
+	* src/output.h (get_lines_number, actions_output, guards_output)
+	(token_definitions_output): Prototype them.
+	* src/parse-skel.y: Add the license notice.
+	Include output.h and skeleton.h.
+	(process_skeleton): Returns void, and takes a single parameter.
+	* src/scan-skel.l: Add the license notice.
+	Include skeleton.h.
+	Don't use %option yylineno: it seems that then Flex imagines
+	REJECT has been used, and therefore it won't reallocate its
+	buffers (which makes no other sense to me than a bug).  It results
+	in warnings for `unused: yy_flex_realloc'.
+
+	to guess if the generated parsers should have '.tab' in their
+	* src/Makefile.am (bison_SOURCES): Add scan-skel.l and
+
+2001-12-30  Robert Anisko  <robert.anisko@epita.fr>
+
+	* src/muscle_tab.h (MUSCLE_INSERT_INT, MUSCLE_INSERT_STRING)
+	(MUSCLE_INSERT_PREFIX): ...to there.
+	* src/output.c (MUSCLE_INSERT_INT, MUSCLE_INSERT_STRING)
+	(MUSCLE_INSERT_PREFIX): Move from here...
+
+	* src/bison.hairy: Add a section directive.  Put braces around muscle
+	names.  This parser skeleton is still broken, but Bison should not
+	choke on a bad muscle 'syntax'.
+	* src/bison.simple: Add a section directive.  Put braces around muscle
+	names.
+
+	* src/files.h (strsuffix, stringappend): Add declarations.
+	(tab_extension): Add declaration.
+	(short_base_name): Add declaration.
+
+	* src/files.c (strsuffix, stringappend): No longer static.  These
+	functions are used in the skeleton parser.
+	(tab_extension): New.
+	(compute_base_names): Use the computations done in this function
+	to guess if the generated parsers should have '.tab' in their 
+	names.
+	(short_base_name): No longer static.
+
+	* src/output.c (output_skeleton): New.
+	(output): Disable call to output_master_parser, and give a try to
+	a new skeleton handling system.
+	(guards_output, actions_output): No longer static.
+	(token_definitions_output, get_lines_number): No longer static.
+
+	* configure.in: Use AM_PROG_LEX and AC_PROG_YACC.
+
+	* src/Makefile.am (bison_SOURCES): Add scan-skel.l and 
+	parse-skel.y.
+
+	* src/parse-skel.y: New file.
+	* src/scan-skel.l: New file.
+
+2001-12-29  Akim Demaille  <akim@epita.fr>
+
+	%name-prefix is broken.
+
+	* src/files.c (spec_name_prefix): Initialize to NULL, not to "yy".
+	Adjust all dependencies.
+	* tests/headers.at (export YYLTYPE): Strengthen this test: use
+	%name-prefix.
+
+	Renaming yylval but not yylloc is not consistent.  Now we do.
+
+	* src/bison.simple: Prefix yylloc if used.
+	* doc/bison.texinfo (Decl Summary): Document that.
+
+2001-12-29  Akim Demaille  <akim@epita.fr>
+
+	* doc/bison.texinfo: Promote `%long-directive' over
+	`%long_directive'.
+	Remove all references to fixed-output-files, yacc is enough.
+
+2001-12-29  Akim Demaille  <akim@epita.fr>
+
+	* src/bison.simple: Define YYDEBUG and YYERROR_VERBOSE *after* the
+	user prologue.  These are defaults.
+	* tests/actions.at (Mid-rule actions): Make sure the user can
+	define YYDEBUG and YYERROR_VERBOSE.
+
+2001-12-29  Akim Demaille  <akim@epita.fr>
+
+	* src/output.c (header_output): Don't forget to export YYLTYPE and
+	yylloc.
+	* tests/headers.at (export YYLTYPE): New, make sure it does.
+	* tests/regression.at (%union and --defines, Invalid CPP headers):
+	Move to...
+	* tests/headers.at: here.
+
+2001-12-29  Akim Demaille  <akim@epita.fr>
+
+	* src/gram.h (rule_s): Member `assoc' is of type `associativity'.
+
+2001-12-29  Akim Demaille  <akim@epita.fr>
+
+	* tests/actions.at (Mid-rule actions): Output on a single line
+	instead of several.
+
+2001-12-29  Akim Demaille  <akim@epita.fr>
+
+	* doc/bison.texinfo: Formatting changes.
+
+2001-12-29  Akim Demaille  <akim@epita.fr>
+
+	Don't store the token defs in a muscle, just be ready to output it
+	on command.  Now possible via `symbols'.  Fixes a memory leak.
+
+	* src/output.c (token_definitions_output): New.
+	(output_parser, header_output): Use it.
+	* src/reader.c (symbols_save): Remove.
+
+2001-12-29  Akim Demaille  <akim@epita.fr>
+
+	* src/bison.simple: Do not provide a default for YYSTYPE and
+	YYLTYPE before the user's prologue.  Otherwise it's hardly... a
+	default.
+
+2001-12-29  Akim Demaille  <akim@epita.fr>
+
+	Mid-rule actions are simply... ignored!
+
+	* src/reader.c (readgram): Be sure to attach mid-rule actions to
+	the empty-rule associated to the dummy symbol, not to the host
+	rule.
+	* tests/actions.at (Mid-rule actions): New.
+
+2001-12-29  Akim Demaille  <akim@epita.fr>
+
+	Memory leak.
+
+	* src/reader.c (reader): Free grammar.
+
+2001-12-29  Akim Demaille  <akim@epita.fr>
+
+	Memory leak.
+
+	* src/LR0.c (new_itemsets): Don't allocate `shift_symbol' here,
+	since it allocates it for each state, although only one is needed.
+	(allocate_storage): Do it here.
+
+2001-12-29  Akim Demaille  <akim@epita.fr>
+
+	* src/options.h, src/options.c (create_long_option_table): Rename
+	as...
+	(long_option_table_new): this, with a clearer prototype.
+	(percent_table): Remove, unused,
+	* src/getargs.c (getargs): Adjust.
+
+2001-12-29  Akim Demaille  <akim@epita.fr>
+
+	* src/LR0.c, src/conflicts.c, src/lalr.c, src/lalr.h, src/output.c
+	* src/print.c, src/print_graph.c, src/state.h: Rename state_table
+	as states.
+
+2001-12-29  Akim Demaille  <akim@epita.fr>
+
+	* src/lalr.c (build_relations): Rename `states' as `states1'.
+	Sorry, I don't understand exactly what it is, no better name...
+
+2001-12-29  Akim Demaille  <akim@epita.fr>
+
+	* src/closure.c, src/conflicts.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: Rename rule_table
+	as rules.
+
+2001-12-29  Akim Demaille  <akim@epita.fr>
+
+	* src/gram.c (rprec, rprecsym, rassoc): Remove, unused since long
+	ago.
+
+2001-12-29  Akim Demaille  <akim@epita.fr>
+
+	* src/reader.c, src/reader.h (user_toknums): Remove.
+	Adjust all users to use symbols[i]->user_token_number.
+
+2001-12-29  Akim Demaille  <akim@epita.fr>
+
+	* src/gram.c, src/gram.h (sprec, sassoc): Remove.
+	Adjust all users to use symbols[i]->prec or ->assoc.
+
+2001-12-29  Akim Demaille  <akim@epita.fr>
+
+	* src/reader.c, src/reader.h (tags): Remove.
+	Adjust all users to use symbols[i]->tag.
+
+2001-12-29  Akim Demaille  <akim@epita.fr>
+
+	* src/gram.h, src/gram.c (symbols): New, similar to state_table
+	and rule_table.
+	* src/reader.c (packsymbols): Fill this table.
+	Drop sprec.
+	* src/conflicts.c (resolve_sr_conflict): Adjust.
+	* src/reduce.c (reduce_grammar): Adjust: just sort symbols, a
+	single table.
+	Use symbols[i]->tag instead of tags[i].
+
+2001-12-29  Akim Demaille  <akim@epita.fr>
+
+	* tests/calc.at (_AT_DATA_CALC_Y): Also use %union.
+	In addition, put a comment in there, to replace...
+	* tests/regression.at (%union and C comments): Remove.
+
+2001-12-29  Akim Demaille  <akim@epita.fr>
+
+	* tests/regression.at (Web2c Actions): Blindly move the actual
+	output as expected output.  The contents *seem* right to me, but I
+	can't pretend reading perfectly parser tables...  Nonetheless, all
+	the other tests pass correctly, the table look OK, even though the
+	presence of `$axiom' is to be noted: AFAICS it is useless (but
+	harmless).
+
+2001-12-29  Akim Demaille  <akim@epita.fr>
+
+	* src/reader.c (readgram): Don't add the rule 0 if there were no
+	rules read.  In other words, add it _after_ having performed
+	grammar sanity checks.
+	Fixes the `tests/regression.at (Invalid input: 1)' Failure.
+
+2001-12-29  Akim Demaille  <akim@epita.fr>
+
+	* tests/regression.at (Web2c Report): Catch up: the rule 0 is now
+	visible, and some states have now a different number.
+
+2001-12-29  Akim Demaille  <akim@epita.fr>
+
+	* src/reader.c (readgram): Bind the initial rule's lineno to that
+	of the first rule.
+	* tests/regression.at (Rule Line Numbers, Unresolved SR Conflicts):
+	(Solved SR Conflicts): Adjust rule 0's line number.
+
+2001-12-29  Akim Demaille  <akim@epita.fr>
+
+	Fix the `GAWK Grammar' failure.
+
+	* src/LR0.c (final_state): Initialize to -1 so that we do compute
+	the reductions of the first state which was mistakenly confused
+	with the final state because precisely final_state was initialized
+	to 0.
+	* tests/sets.at (Nullable): Adjust: state 0 does have lookaheads,
+	now noticed by Bison.
+	* tests/regression.at (Rule Line Numbers): Adjust: state 0 does
+	have a reduction on $default.
+
+2001-12-29  Akim Demaille  <akim@epita.fr>
+
+	* src/gram.c (ritem_print): Be sure to subtract 1 when displaying
+	rule line numbers.
+	* src/closure.c (print_closure): Likewise.
+	* src/derives.c (print_derives): Likewise.
+	* tests/sets.at (Nullable): Adjust: the rule numbers are correct
+	now.
+
+2001-12-29  Akim Demaille  <akim@epita.fr>
+
+	* src/lalr.c (lookaheads_print): New.
+	(lalr): Call it when --trace-flag.
+	* tests/sets.at (Nullable): Adjust: when tracing, the lookaheads
+	are dumped.
+
+2001-12-29  Akim Demaille  <akim@epita.fr>
+
+	* src/derives.c (print_derives): Be sure to use `>= 0', not `> 0',
+	when walking through ritem, even via rule->rhs.
+	* src/reduce.c (dump_grammar, useful_production, reduce_output)
+	(useful_production, useless_nonterminals): Likewise.
+	(reduce_grammar_tables): Likewise, plus update nritems.
+	* src/nullable.c (set_nullable): Likewise.
+	* src/lalr.c (build_relations): Likewise.
+	* tests/sets.at (Nullable): Adjust.
+	Fortunately, now, the $axiom is no longer nullable.
+
+2001-12-29  Akim Demaille  <akim@epita.fr>
+
+	* src/LR0.c (generate_states): Use nritems, not nitems, nor using
+	the 0-sentinel.
+	* src/gram.c (ritem_longest_rhs): Likewise.
+	* src/reduce.c (nonterminals_reduce): Likewise.
+	* src/print_graph.c (print_graph): Likewise.
+	* src/output.c (output_rule_data): Likewise.
+	* src/nullable.c (set_nullable):  Likewise.
+
+2001-12-29  Akim Demaille  <akim@epita.fr>
+
+	* src/output.c: Comment changes.
+
+2001-12-27  Paul Eggert  <eggert@twinsun.com>
+
+	* src/bison.simple (YYSTACK_ALLOC, YYSIZE_T): Remove special
+	cases for non-GNU systems like AIX, HP-UX, SGI, Sun, and
+	Sparc, as they were causing more porting problems than the
+	(minor) performance improvement was worth.
+
+	Also, catch up with 1.31's YYSTD.
+
+2001-12-27  Akim Demaille  <akim@epita.fr>
+
+	* src/output.c (output_gram): Rely on nritems, not the
+	0-sentinel.  See below.
+	Use -1 as separator, not 0.
+	* src/bison.simple (yyparse): Subtract 1 to the rule numbers.
+	Rely on -1 as separator in yyrhs, instead of 0.
+	* tests/calc.at (AT_CHECK_CALC): Now, the parsers no longer issue
+	twice `Now at end of input', therefore there are two lines less to
+	expect.
+
+2001-12-27  Akim Demaille  <akim@epita.fr>
+
+	* tests/regression.at (Unresolved SR Conflicts):
+	(Solved SR Conflicts, Rule Line Numbers): Adjust to the changes
+	below.
+
+2001-12-27  Akim Demaille  <akim@epita.fr>
+
+	* src/LR0.c (new_state): Recognize the final state by the fact it
+	is reached by eoftoken.
+	(insert_start_shifting_state, insert_eof_shifting_state)
+	(insert_accepting_state, augment_automaton): Remove, since now
+	these states are automatically computed from the initial state.
+	(generate_states): Adjust.
+	* src/print.c: When reporting a rule number to the user, substract
+	1, so that the axiom rule is rule 0, and the first user rule is 1.
+	* src/reduce.c: Likewise.
+	* src/print_graph.c (print_core): For the time being, just as for
+	the report, depend upon --trace-flags to dump the full set of
+	items.
+	* src/reader.c (readgram): Once the grammar read, insert the rule
+	0: `$axiom: START-SYMBOL $'.
+	* tests/set.at: Adjust: rule 0 is now displayed, and since the
+	number of the states has changed (the final state is no longer
+	necessarily the last), catch up.
+
+2001-12-27  Akim Demaille  <akim@epita.fr>
+
+	Try to make the use of the eoftoken valid.  Given that its value
+	is 0 which was also used as a sentinel in ritem, (i) make sure >= 0
+	is used instead of > 0 where appropriate, (ii), depend upon nritems
+	instead of the 0-sentinel.
+
+	* src/gram.h, src/gram.c (nritems): New.
+	Expected to be duplication of nitems, but for the time being...
+	* src/reader.c (packgram): Assert nritems and nitems are equal.
+	* src/LR0.c (allocate_itemsets, new_itemsets): Adjust.
+	* src/closure.c (print_closure, print_fderives): Likewise.
+	* src/gram.c (ritem_print): Likewise.
+	* src/print.c (print_core, print_grammar): Likewise.
+	* src/print_graph.c: Likewise.
+
+2001-12-27  Akim Demaille  <akim@epita.fr>
+
+	* src/main.c (main): If there are complains after grammar
+	reductions, then output the report anyway if requested, then die.
+	* src/symtab.c (bucket_new): Initialize `value' to -1, not 0.
+	* src/reader.c (eoftoken): New.
+	(parse_token_decl): If the token being defined has value `0', it
+	is the eoftoken.
+	(packsymbols): No longer hack `tags' to insert `$' by hand.
+	Be sure to preserve the value of the eoftoken.
+	(reader): Make sure eoftoken is defined.
+	Initialize nsyms to 0: now eoftoken is created just like the others.
+	* src/print.c (print_grammar): Don't special case the eof token.
+	* src/regression.at: Adjust: `$' has value 0, not -1, which was a
+	lie anyway, albeit pleasant.
+	* tests/calc.at: Exercise error messages with eoftoken.
+	Change the grammar so that empty input is invalid.
+	Adjust expectations.
+	When yyungeting, be sure to use a valid yylloc: use last_yylloc.
+
 2001-12-27  Akim Demaille  <akim@epita.fr>
 
 	* configure.in: Check the protos of strchr ans strspn.
@@ -7,7 +395,6 @@
 	* lib/strchr.c: New.
 	* src/reader.c (symbols_save): Use strchr.
 
-	
 2001-12-27  Akim Demaille  <akim@epita.fr>
 
 	* src/print.c, src/print_graph.c (escape): New.
@@ -16,7 +403,6 @@
 	reductions in green.
 	Prefer high to wide: output the state number on a line of its own.
 
-	
 2001-12-27  Akim Demaille  <akim@epita.fr>
 
 	* src/state.h, src/state.c (reductions_new): New.
@@ -27,7 +413,6 @@
 	* src/print.c (print_reductions, print_actions): Adjust.
 	* src/output.c (action_row): Adjust.
 
-	
 2001-12-27  Akim Demaille  <akim@epita.fr>
 
 	* src/state.h, src/state.c (errs_new, errs_dup): New.
@@ -37,7 +422,6 @@
 	* src/output.c (output_actions, action_row): Adjust.
 	* src/conflicts.c (resolve_sr_conflict): Adjust.
 
-	
 2001-12-27  Akim Demaille  <akim@epita.fr>
 
 	* src/lalr.c (set_goto_map, initialize_F): Use SHIFT_SYMBOL.
@@ -53,30 +437,25 @@
 	(print_actions): here.
 	* src/print_graph.c (print_actions): Remove dead code.
 
-	
 2001-12-27  Akim Demaille  <akim@epita.fr>
 
 	* src/reader.c (copy_dollar, copy_at): Better checking of `n' in
 	`$n' and `@n'.
 
-	
 2001-12-27  Akim Demaille  <akim@epita.fr>
 
 	* src/lalr.c (add_lookback_edge): Use state_t instead of ints.
 	(build_relations): Adjust.
 
-	
 2001-12-27  Akim Demaille  <akim@epita.fr>
 
 	* src/lalr.c (set_goto_map): Remove a wrong but benign loop
 	duplication.
 
-	
 2001-12-27  Akim Demaille  <akim@epita.fr>
 
 	* src/reader.c (packgram): Catch nitems overflows.
 
-	
 2001-12-27  Akim Demaille  <akim@epita.fr>
 
 	* src/files.c, src/files.h (guard_obstack): Remove.
@@ -87,7 +466,6 @@
 	As a voluntary consequence, using braces around guards is now
 	mandatory.
 
-	
 2001-12-27  Akim Demaille  <akim@epita.fr>
 
 	* src/gram.h (rule_t): `guard' and `guard_line' are new members.
@@ -136,7 +514,6 @@
 	of a integer, and nlookaheads instead of the following state's
 	lookaheadsp.
 
-	
 2001-12-27  Akim Demaille  <akim@epita.fr>
 
 	* src/conflicts.c (log_resolution, flush_shift)
@@ -170,7 +547,6 @@
 	Use YYNTOKENS only, which is documented, but not YYNTBASE, which
 	is an undocumented synonym.
 
-	
 2001-12-22  Akim Demaille  <akim@epita.fr>
 
 	* src/output.c (output_table_data): Change the prototype to use