ochangelog

GNU的词法/语法分析器bison源码

	* src/lex.c (lex): Parse hex escapes properly.
	Handle \v when filling token_buffer.

	* src/lex.c: Include new.h.
	(token_buffer): Change to a pointer.
	(init_lex): Allocate initial buffer.
	(grow_token_buffer): New function.
	(lex, parse_percent_token): Use that.

	* src/reader.c (read_declarations): Call open_extra_files just
	once.
	(parse_token_decl): Don't free previous typename value.  Don't
	increment nvars if symbol is already a nonterminal.
	(parse_union_decl): Catch unmatched close-brace.
	(parse_expect_decl): Null-terminate buffer.
	(copy_guard): Set brace_flag for {, not for }.

	* src/reader.c: Fix %% in calls to fatal.

	* src/reader.c (token_buffer): Just one extern decl, at top level.
	Declare as pointer.

	* src/symtab.c (free_symtab): Free type_name fields.  Free symtab
	itself.

1991-11-25  Richard Stallman  <[e-mail]>

	* src/bison.simple: Handle alloca for AIX.

	* Makefile.in (mandir): Compute default using manext.

1991-11-02  David J. MacKenzie  <[e-mail]>

	* Update all files to GPL version 2.

1991-09-06  Richard Stallman  <[e-mail]>

	* src/bison.simple (__yy_bcopy): Use builtin if GCC version 2.

1991-08-26  Richard Stallman  <[e-mail]>

	* src/reader.c (parse_assoc_decl): Error if same symbol gets two
	precs.

1991-08-26  David J. MacKenzie  <[e-mail]>

	* Makefile.in, configure: Only put $< in Makefile if using VPATH,
	because older makes don't understand it.

1991-08-23  David J. MacKenzie  <djm@apple-gunkies>

	* src/conflicts.c [_AIX]: #pragma alloca.
	* src/reduce.c: Don't define TRUE and FALSE if already defined.

1991-08-12  Richard Stallman  <[e-mail]>

	* Makefile.in: Add deps on system.h.
	(install): Add some deps.

1991-08-02  David J. MacKenzie  <djm@apple-gunkies>

	* Makefile.in (dist): Include texinfo.tex.

	* configure: Create config.status.  Remove it and Makefile if
	interrupted while creating them.

1991-08-01  David J. MacKenzie  <djm@apple-gunkies>

	* configure: Check for +srcdir etc. arg and look for
	Makefile.in in that directory.  Set VPATH if srcdir is not `.'.
	* Makefile.in (prefix): Renamed from DESTDIR.

1991-07-31  Richard Stallman  <[e-mail]>

	* src/print.c (print_grammar): Make output prettier.  Break lines.

1991-07-30  Richard Stallman  <[e-mail]>

	* src/print.c (print_grammar): New function.
	(verbose): Call it instead of printing token names here.

1991-07-22  Richard Stallman  <[e-mail]>

	* src/vmsgetargs.c (spec_name_prefix, spec_file_prefix): Define
	variables.

1991-07-10  David J. MacKenzie  <[e-mail]>

	* configure, Makefile.in: $(INSTALLPROG) -> $(INSTALL),
	$(INSTALLTEXT) -> $(INSTALLDATA).

1991-07-09  David J. MacKenzie  <[e-mail]>

	* src/bison.simple: Don't include malloc.h if __TURBOC__.

1991-07-06  David J. MacKenzie  <[e-mail]>

	* Replace Makefile with configure and Makefile.in.  Update README
	with current compilation instructions.

1991-07-01  Richard Stallman  <[e-mail]>

	* src/reader.c (reader): Make the output define YYBISON.

1991-06-20  David J. MacKenzie  <[e-mail]>

	* Makefile (MANDIR, MANEXT): Install man page in
	/usr/local/man/man1/bison.1 by default, instead of
	/usr/man/manl/bison.l, for consistency with other GNU programs.
	* Makefile: Rename BINDIR et al. to lowercase to conform to
	GNU coding standards.
	(install): Make man page non-executable.

1991-05-31  Richard Stallman  <[e-mail]>

	* Makefile (bison.info): New target.
	(realclean): New target.

1991-05-02  Richard Stallman  <[e-mail]>

	* src/bison.simple: Use YYPRINT to print a token, if it's defined.

1991-04-29  Richard Stallman  <[e-mail]>

	* src/lalr.c (transpose): Rename R to R_arg.
	(initialize_LA): Avoid shadowing variable j.

	* src/reader.c (packsymbols): Avoid shadowing variable i.

	* src/files.c: Declare exit and perror.

	* src/machine.h: Define MAXSHORT and MINSHORT for the eta-10.

1991-04-02  Richard Stallman  <[e-mail]>

	* src/allocate.c (mallocate): Always allocate at least one byte.

1991-03-19  Richard Stallman  <[e-mail]>

	* Makefile (dist): Put alloca.c into distribution.

1991-03-06  Richard Stallman  <[e-mail]>

	* src/print.c (print_actions): Nicer output for final states.

1991-02-21  Richard Stallman  <[e-mail]>

	* src/output.c (output_rule_data): Break lines in yytline based on
	hpos.

1991-02-07  Richard Stallman  <[e-mail]>

	* src/bison.simple (yyparse): Move decl of yylsa before use.

1991-01-15  Richard Stallman  <[e-mail]>

	* Version 1.14.

	* src/output.c (output_rule_data): Handle NULL in tags[i].

1991-01-11  Richard Stallman  <[e-mail]>

	* src/bison.simple: On MSDOS, include malloc.h.

1990-12-29  David J. MacKenzie  <[e-mail]>

	* src/files.c: Use `mallocate' instead of `xmalloc' so no extra
	decl is needed.

1990-12-19  Richard Stallman  <[e-mail]>

	* src/reader.c (readgram): Alternate YYSTYPE defn for MSDOS.
	* src/files.c [MSDOS]: Declare xmalloc.

1990-12-13  Richard Stallman  <[e-mail]>

	* src/output.c (output_rule_data): Put all symbols in yytname.

	* src/bison.simple (yyparse): Delete extra fprintf arg
	when printing a result of reduction.

1990-12-10  Richard Stallman  <[e-mail]>

	* src/reader.c (packsymbols): Don't declare yylval if pure_parser.

1990-10-30  Richard Stallman  <[e-mail]>

	* Version 1.12.

	* src/LR0.c (augment_automaton): Fix bugs adding sp2 to chain of
	shifts.

1990-10-23  Richard Stallman  <[e-mail]>

	* src/bison.simple: Don't define alloca if already defined.

1990-10-21  Richard Stallman  <[e-mail]>

	* src/getopt.c: On VMS, use string.h.

	* src/main.c (main): Return type int.

1990-09-10  Richard Stallman  <[e-mail]>

	* src/output.c (output_headers): Output macro defs for -p.

	* src/reader.c (readgram): Handle consecutive actions.

	* src/getargs.c (getargs): Rename -a to -p.
	* src/files.c (openfiles): Change names used for -b.

1990-08-27  Richard Stallman  <[e-mail]>

	* src/reduce.c (reduce_grammar_tables): Don't map rlhs of disabled
	rule.

1990-08-26  Richard Stallman  <[e-mail]>

	* src/closure.c (print_firsts, print_fderives): Use BITISSET to
	test bits.

1990-08-23  Richard Stallman  <[e-mail]>

	* src/closure.c (print_firsts): vrowsize => varsetsize.
	(print_fderives): rrowsize => rulesetsize.

1990-08-10  Richard Stallman  <[e-mail]>

	* src/bison.simple (alloca): Don't define if already defined.
	(__yy_bcopy): Alternate definition for C++.

1990-07-11  David J. MacKenzie  <[e-mail]>

	* src/getargs.c (getargs): Mention +yacc in usage message.

1990-07-10  Richard Stallman  <[e-mail]>

	* src/reader.c (parse_token_decl, copy_action): Set
	value_components_used if appropriate.
	(readgram): Inhibit output of YYSTYPE definition in that case.

1990-06-30  Richard Stallman  <[e-mail]>

	* src/output.c (output_parser): Define YYPURE if pure, and not
	otherwise.  Don't define YYIMPURE.
	* src/bison.simple: Adjust conditionals accordingly.
	* src/bison.simple (YYLEX): If locations not in use, don't pass
	&yylloc.

1990-06-28  Richard Stallman  <[e-mail]>

	* src/getargs.c (longopts): Add `yacc'.

1990-06-28  David J. MacKenzie  <djm@apple-gunkies>

	* src/getargs.c (getargs): Add long options.
	* Makefile: Link with getopt1.o and add getopt1.c and getopt.h to
	dist.

	* Move version number and description back into version.c from
	Makefile and getargs.c.
	* Makefile (dist): Extract version number from version.c.

1990-06-26  Richard Stallman  <[e-mail]>

	* src/output.c (output): Always call output_gram.
	* src/bison.simple (yyparse): Print rhs and lhs symbols of
	reduction rule.

1990-06-21  David J. MacKenzie  <[e-mail]>

	* src/main.c: New global var `program_name' to hold argv[0] for
	error messages.
	* src/allocate.c, src/files.c, src/getargs.c, src/reader.c: Use
	`program_name' in messages instead of hardcoded "bison".

1990-06-20  David J. MacKenzie  <[e-mail]>

	* Makefile: Specify Bison version here.  Add rule to pass it to
	version.c.  Encode it in distribution directory and tar file names.
	* src/version.c: Use version number from Makefile.
	* src/getargs.c (getargs): Print additional text that used to be
	part of version_string in version.c.  Use -V instead of -version
	to print Bison version info.  Print a usage message and exit if
	given an invalid option.

1990-06-19  Richard Stallman  <[e-mail]>

	* src/bison.simple: Fix a #line.

	* Makefile (INSTALL): New parameter.
	(install): Use that.
	(CFLAGS): Move definition to top.

1990-06-17  Richard Stallman  <[e-mail]>

	* src/reader.c (parse_type_decl): Ignore semicolon.
	Remove excess % from error messages.

1990-06-16  Richard Stallman  <[e-mail]>

	* Version 1.11.

	* Makefile (install): Ensure installed files readable.

Tue Jun 12 12:50:56 EDT 1990 Jay Fenlason <[e-mail]>

	* src/getargs.c: Declare spec_file_prefix

	* src/lex.c (lex): \a is '\007' instead of '007'

	* src/reader.c: include machine.h

	* src/files.h: Declare extern spec_name_prefix.

	Trivial patch from Thorsten Ohl <[e-mail]>

1990-05-31  Richard Stallman  <[e-mail]>

	* Version 1.10.

	* src/bison.simple (YYBACKUP, YYRECOVERING): New macros.
	(YYINITDEPTH): This is what used to be YYMAXDEPTH.
	(YYMAXDEPTH): This is what used to be YYMAXLIMIT.
	If the value is 0, use the default instead.
	(yyparse): Return 2 on stack overflow.

1990-05-30  Richard Stallman  <[e-mail]>

	* src/bison.simple (YYERROR): Jump to new label; don't print error
	message.
	(yyparse): Define label yyerrlab1.

1990-05-16  Richard Stallman  <[e-mail]>

	* src/files.c (openfiles): Support -b.
	* src/getargs.c (getargs): Likewise.

	* src/reader.c (readgram): Error if too many symbols.

	* src/lex.c (lex): Handle \a.  Make error msgs more reliable.
	* src/reader.c (read_declarations): Make error msgs more reliable.

1990-05-13  Richard Stallman  <[e-mail]>

	* Version 1.09.

	* src/reduce.c (reduce_grammar_tables): Fix backward test.

1990-05-12  Richard Stallman  <[e-mail]>

	* Makefile (bison-dist.*): Rename targets and files to bison.*.
	(bison.tar): Make tar file to unpack into subdirectory named `bison'.

1990-04-30  Richard Stallman  <[e-mail]>

	* src/reduce.c (reduce_grammar_tables): Set rlhs to -1 for useless
	rules.
	* src/nullable.c (set_nullable): Ignore those rules.
	* src/derives.c (set_derives): Likewise.

1990-04-23  Richard Stallman  <[e-mail]>

	* src/bison.simple (yyparse): Mention rule number as well as line
	number.

1990-03-29  Richard Stallman  <[e-mail]>

	* src/bison.simple (__yy_bcopy): New function.
	(yyparse): Use that, not bcopy.

1990-03-28  Richard Stallman  <[e-mail]>

	* src/print.c (print_actions): Don't alter i and j spuriously when
	errp==0.