ochangelog

bison 2.0 主要可以用来做语法分析用的

1990-03-12  Jim Kingdon  <[e-mail]>

	* src/bison.simple [__GNUC__]: Use builtin_alloca.

1990-03-07  Richard Stallman  <[e-mail]>

	* Makefile (install): Use mergedir.awk to process bison.simple
	for installation.

	* src/bison.simple (yyparse): New feature to include possible valid
	tokens in parse error message.

1990-03-03  Richard Stallman  <rms@geech>

	* Version 1.08.

1990-02-26  Jim Kingdon  <[e-mail]>

	* src/print.c (print_actions)
	* src/conflicts.c (print_reductions): Change "shift %d" to
	"shift, and go to state %d" and "reduce %d" to "reduce using rule %d"
	and "goto %d" to "go to state %d".
	* src/print.c (print_core): Change "(%d)" to "(rule %d)".

1990-02-20  Jay Fenlason  <[e-mail]>

	* src/bison.simple:  Comment out unused yyresume: label.

1990-02-09  Jay Fenlason <[e-mail]>

	* src/bison.simple : surround all declarations and (remaining)
	uses of yyls* and yylloc with #ifdef YYLSP_NEEDED This will
	significantly cut down on stack usage, and gets rid of
	unused-variable msgs from GCC.

1990-01-31  Richard Stallman  <[e-mail]>

	* src/files.c (done) [VMS]: Don't delete files that weren't used.
	[VMS]: Let user override XPFILE and XPFILE1.

1990-01-03  Richard Stallman  <[e-mail]>

	* Version 1.07.

1989-12-16  Richard Stallman  <[e-mail]>

	* src/gram.c (dummy): New function.

	* src/reader.c (readgram): Detect error if two consec actions.

1989-11-15  Richard Stallman  <[e-mail]>

	* src/reduce.c (reduce_grammar_tables): Update rline like other
	tables.

	* Makefile (install): Install the man page.

1989-11-11  Richard Stallman  <[e-mail]>

	* src/output.c (output_rule_data): Write #if YYDEBUG around yyrline.

1989-10-18  Richard Stallman  <[e-mail]>

	* Version 1.06.

	* src/vmsgetargs.c (getargs): Downcase specified output file name.

1989-10-13  Richard Stallman  <[e-mail]>

	* src/reader.c (readgram): Warn if there is no default to use for
	$$ and one is needed.

1989-09-29  Richard Stallman  <[e-mail]>

	* Version 1.05.

	* src/vmsgetargs.h (getargs): Process outfile option.

1989-09-08  Richard Stallman  <[e-mail]>

	* Version 1.04.

	* src/reader.c (parse_union_decl): Count newlines even in
	comments.

1989-09-06  Richard Stallman  <[e-mail]>

	* src/files.c (openfiles): short_base_length was always ==
	base_length.

1989-08-24  Richard Stallman  <[e-mail]>

	* Version 1.03.

	* src/files.c (openfiles): Write output into same dir as input, by
	default.

1989-08-23  Jay Fenlason  <hack@gnu>

	* Makefile: Include system.h in bison-dist.tar

1989-08-15  Richard Stallman  <[e-mail]>

	* version 1.03.

	* src/reader.c (reader): Output LTYPESTR to fdefines
	only after reading the grammar.

1989-08-06  Richard Stallman  <[e-mail]>

	* src/reader.c (read_declarations): Put space before comment
	to avoid bug in Green Hills C compiler.

1989-06-19  Richard Stallman  <[e-mail]>

	* src/allocate.c (xmalloc): New function.

1989-06-16  Richard Stallman  <[e-mail]>

	* src/build.com: Compile and link reduce.c.

1989-06-09  Richard Stallman  <[e-mail]>

	* src/reduce.c (reduce_grammar_tables): Adjust start_symbol when
	#s change.

1989-05-27  Richard Stallman  <[e-mail]>

	* src/reader.c (copy_definition, copy_guard): Don't object to
	\-newline inside strings.

1989-05-22  Richard Stallman  <[e-mail]>

	* src/files.c (openfiles): Alternate file names for MSDOS.
	(open_extra_files): Likewise.
	(done): On MSDOS, unlink temp files here, not in openfiles.

	* src/machine.h (BITS_PER_WORD): 16 on MSDOS.
	(MAXTABLE): Now defined in this file.

	* src/system.h: New file includes system-dependent headers.
	All relevant .c files include it.

1989-04-27  Richard Stallman  <[e-mail]>

	* src/version.c: Version 1.01.

1989-04-18  Randall Smith  <[e-mail]>

	* src/conflicts.c (total_conflicts): Fixed typo in yacc style
	output; mention conflicts if > 0.

1989-04-15  Richard Stallman  <[e-mail]>

	* src/reader.c (packsymbols): Start new symbols after 256.

1989-04-12  Richard Stallman  <[e-mail]>

	* src/reader.c (reader): Always assign code 256 to `error' token.
	Always set `translations' to 1 so this code gets handled.
	* src/bison.simple (YYERRCODE): Define it.

1989-04-11  Richard Stallman  <[e-mail]>

	* src/conflicts.c: If GNU C, use builtin alloca.

	* Makefile (install): Delete parser files before copying them.

1989-03-30  Richard Stallman  <[e-mail]>

	* src/getargs.c (getargs): Turn off checking of name Bison was
	invoked by.

	* Makefile (dist): Include ChangeLog in distrib.

1989-03-23  Jay Fenlason  <[e-mail]>

	* src/LR0.c src/closure.c src/conflicts.c src/derives.c
	src/files.c src/getargs.c src/lalr.c src/lex.c src/main.c
	src/nullable.c src/output.c src/print.c src/reader.c src/reduce.c
	src/symtab.c src/warshall.c: A first pass at getting gcc -Wall to
	shut up.  Mostly declared functions as void, etc.

	* src/reduce.c moved 'extern int fixed_outfiles;' into print_notices
	where it belongs.

1989-03-01  Randall Smith  <[e-mail]>

	* src/types.h, src/symtab.h, src/state.h, src/new.h,
	src/machine.h, src/lex.h, src/gram.h, src/files.h, src/closure.c,
	src/vmsgetargs.c, src/warshall.c, src/symtab.c, src/reduce.c,
	src/reader.c, src/print.c, src/output.c, src/nullable.c,
	src/main.c, src/lex.c, src/lalr.c, src/gram.c, src/getargs.c,
	src/files.c, src/derives.c, src/conflicts.c, src/allocate.c,
	src/LR0.c, Makefile, src/bison.simple: Changed copyright notices
	to be in accord with the new General Public License.
	* COPYING: Made a link to the new copying file.

1989-02-22  Richard Stallman  <[e-mail]>

	* src/new.h (FREE): Alternate definition for __STDC__ avoids error
	if `free' returns void.

1989-02-21  Richard Stallman  <[e-mail]>

	* src/reader.c (read_declarations): Double a `%' in a format string.
	(copy_definition, parse_start_decl, parse_token_decl): Likewise.
	(parse_type_decl, parse_union_decl, copy_guard, readgram, get_type).
	(copy_action): change a `fatal' to `fatals'.

	* src/lalr.c (map_goto): Initial high-end of binary search was off
	by 1.

1989-02-18  Richard Stallman  <[e-mail]>

	* src/bison.simple [sparc]: Include alloca.h.

1989-02-15  Richard Stallman  <[e-mail]>

	* src/reader.c (packsymbols): Write decl of yylval into .tab.h file.

1989-01-28  Richard Stallman  <[e-mail]>

	* src/bison.simple: Avoid comments on `#line' lines.

	* src/reader.c (LTYPESTR): Rearrange to avoid whitespace after
	\-newline.

1989-01-09  Richard Stallman  <[e-mail]>

	* src/conflicts.c (total_conflicts): if -y, use output syntax
	POSIX wants.
	* src/reduce.c (print_notices): likewise.

	* src/lex.c (lex): Handle \v, and \x hex escapes.

	* src/reader.c (reader): Merge output_ltype into here.  Don't
	output YYLTYPE definition to .tab.h file unless the @ construct is
	used.

	* src/bison.simple: Define YYERROR, YYABORT, YYACCEPT here.
	* src/reader.c (output_ltype): Don't output them here.

	* src/bison.simple: YYDEBUG now should be 0 or 1.
	* src/output.c (output): For YYDEBUG, output conditional to define it
	only if not previously defined.

1989-01-02  Richard Stallman  <[e-mail]>

	* src/bison.simple (yyparse) [YYPURE]: Add local yynerrs.
	(yydebug): Declare global, but don't initialize, regardless of
	YYPURE.
	(yyparse): Don't declare yydebug here.

1988-12-22  Richard Stallman  <[e-mail]>

	* src/reduce.c (print_notices): Typo in message.

1988-12-11  Richard Stallman  <[e-mail]>

	* src/output.c (pack_table): Free only nonzero the elts of froms &
	tos.

1988-12-08  Richard Stallman  <[e-mail]>

	* src/gram.c (rprecsym): New vector indicates the %prec symbol for
	a rule.
	* src/reader.c (packgram): Allocate it and fill it in.
	* src/reduce.c (inaccessable_symbols): Use it to set V1.
	* src/reduce.c (print_results): Don't complain about useless token
	if it's in V1.

1988-12-05  Richard Stallman  <[e-mail]>

	* src/machine.h (RESETBIT, BITISSET): New macros.
	(SETBIT, WORDSIZE): Change to use BITS_PER_WORD.

	* src/reduce.c: New file, by David Bakin.  Reduces the grammar.
	* Makefile: Compile it, link it, put it in dist.

	* src/main.c (main): Call reduce_grammar (in reduce.c).

1988-11-17  Richard Stallman  <[e-mail]>

	* src/conflicts.c: Don't declare alloca if including alloca.h.

	* src/bison.cld: Define qualifiers `nolines', `debug'.
	* src/vmsgetargs.c (getargs): Handle them.

	* src/output.c (output_program): Notice `nolinesflag'.

	* src/output.c (output_parser): Simplify logic for -l and #line.
	Avoid writing EOF char into output.

1988-10-12  Richard Stallman  <[e-mail]>

	* Implement `-l' option.
	* src/getopt.c: Set flag `nolinesflag'.
	* src/reader.c (copy_definition, parse_union_decl, copy_guard,
	copy_action) Obey that flag; don't generate #line.
	* src/output.c (output_parser): Discard #line's when copying the
	parser.

1988-09-12  Richard Stallman  <[e-mail]>

	* src/reader.c (copy_guard): Fix brace-counting for
	brace-surrounded guard.

1988-09-08  Richard Stallman  <[e-mail]>

	* src/bison.simple: Correct number in #line command.
	(yyparse): Call YYABORT instead of YYERROR, due to last change in
	output_ltype.

1988-09-05  Richard Stallman  <[e-mail]>

	* Makefile: New variable LIBS.  Alternatives for USG.
	* src/conflicts.c [USG]: Define bcopy.
	* src/symtab.c [USG]: Include string.h instead of strings.h.

	* src/conflicts.c [sparc]: Include alloca.h.

1988-08-02  Richard Stallman  <[e-mail]>

	* src/reader.c (parse_token_decl): Ignore commas.

1988-06-25  Richard Stallman  <[e-mail]>

	* src/reader.c (output_ltype): Make YYERROR yacc-compatible (like
	YYFAIL).

1988-06-24  Richard Stallman  <[e-mail]>

	* src/getargs.c (getargs): -t sets debugflag.
	Eliminate upper case duplicate options.
	* src/output.c (output): If debugflag, output `#define YYDEBUG'.

1988-05-26  Richard Stallman  <[e-mail]>

	* src/allocate.c (mallocate): New name for `allocate' (which loses
	in VMS).  Calls changed in LR0.c, conflicts.c, symtab.c, new.h.

	* src/getargs.c (getargs): If argv[0] is "yacc", set fixed_outfiles.

1988-05-17  Richard Stallman  <[e-mail]>

	* src/conflicts.c: Declare alloca.
	* src/reader.c: Declare realloc.
	* src/warshall.c (TC): Fix one arithmetic op that was omitted last
	time.

1988-05-05  Richard Stallman  <[e-mail]>

	* src/bison.simple: Conditionalize most refs to yylsp on
	YYLSP_NEEDED.
	* src/reader.c (copy_guard, copy_action): Notice if `@' is used.
	(reader): If it was, output `#define YYLSP_NEEDED'.

1988-04-18  Richard Stallman  <[e-mail]>

	* src/bison.simple: New variable yynerr counts calls to yyerror.

	* src/lex.c (lex, case '='): Update lineno when skipping a newline.

	* src/reader.c (parse_expect_decl): ungetc the char that ends the
	number; don't read any further.  This handles multi-line comments
	right and avoids incorrect lineno.

	* src/reader.c: Delete duplicate decl of symval.

	* src/warshall.c (RTC, TC): Cast ptrs to char *, not unsigned, for
	arith.