mirror of
https://git.savannah.gnu.org/git/bison.git
synced 2026-03-09 12:23:04 +00:00
e9955c8373
* 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.
292 lines
6.3 KiB
C
292 lines
6.3 KiB
C
/* system-dependent definitions for Bison.
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Copyright 2000, 2001, 2002 Free Software Foundation, Inc.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software Foundation,
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Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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#ifndef BISON_SYSTEM_H
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#define BISON_SYSTEM_H
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#ifdef HAVE_CONFIG_H
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# include <config.h>
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#endif
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#include <stdio.h>
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#include <assert.h>
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#if HAVE_STDLIB_H
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# include <stdlib.h>
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#endif
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/* The following test is to work around the gross typo in
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systems like Sony NEWS-OS Release 4.0C, whereby EXIT_FAILURE
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is defined to 0, not 1. */
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#if !EXIT_FAILURE
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# undef EXIT_FAILURE
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# define EXIT_FAILURE 1
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#endif
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#ifndef EXIT_SUCCESS
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# define EXIT_SUCCESS 0
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#endif
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#if HAVE_UNISTD_H
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# include <unistd.h>
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#endif
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#if defined(STDC_HEADERS) || defined(HAVE_STRING_H)
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# include <string.h>
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/* An ANSI string.h and pre-ANSI memory.h might conflict. */
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# if !defined(STDC_HEADERS) && defined(HAVE_MEMORY_H)
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# include <memory.h>
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# endif /* not STDC_HEADERS and HAVE_MEMORY_H */
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#else /* not STDC_HEADERS and not HAVE_STRING_H */
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# include <strings.h>
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/* memory.h and strings.h conflict on some systems. */
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#endif /* not STDC_HEADERS and not HAVE_STRING_H */
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#if defined(STDC_HEADERS) || defined(HAVE_CTYPE_H)
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# include <ctype.h>
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#endif
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#include <errno.h>
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#ifndef errno
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extern int errno;
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#endif
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/* AIX requires this to be the first thing in the file. */
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#ifndef __GNUC__
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# if HAVE_ALLOCA_H
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# include <alloca.h>
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# else
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# ifdef _AIX
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#pragma alloca
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# else
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# ifndef alloca /* predefined by HP cc +Olibcalls */
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char *alloca ();
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# endif
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# endif
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# endif
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#endif
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#ifndef PARAMS
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# if defined PROTOTYPES || defined __STDC__
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# define PARAMS(Args) Args
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# else
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# define PARAMS(Args) ()
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# endif
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#endif
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#if HAVE_LIMITS_H
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# include <limits.h>
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#endif
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#ifndef SHRT_MIN
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# define SHRT_MIN (-32768)
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#endif
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#ifndef SHRT_MAX
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# define SHRT_MAX 32767
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#endif
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# include "xalloc.h"
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/* From xstrndup.c. */
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char *xstrndup PARAMS ((const char *s, size_t n));
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/*---------------------.
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| Missing prototypes. |
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`---------------------*/
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#if !HAVE_DECL_STPCPY
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char *stpcpy PARAMS ((char *dest, const char *src));
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#endif
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#if !HAVE_DECL_STRCHR
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char *strchr(const char *s, int c);
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#endif
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#if !HAVE_DECL_STRSPN
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size_t strspn(const char *s, const char *accept);
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#endif
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#if !HAVE_DECL_STRNLEN
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size_t strnlen PARAMS ((const char *s, size_t maxlen));
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#endif
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#if !HAVE_DECL_MEMCHR
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void *memchr PARAMS ((const void *s, int c, size_t n));
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#endif
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#if !HAVE_DECL_MEMRCHR
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void *memrchr PARAMS ((const void *s, int c, size_t n));
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#endif
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/*-----------------.
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| GCC extensions. |
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`-----------------*/
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#ifndef __attribute__
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/* This feature is available in gcc versions 2.5 and later. */
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# if !defined (__GNUC__) || __GNUC__ < 2 || \
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(__GNUC__ == 2 && __GNUC_MINOR__ < 5) || __STRICT_ANSI__
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# define __attribute__(Spec) /* empty */
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# endif
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#endif
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/* The __-protected variants of `format' and `printf' attributes
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are accepted by gcc versions 2.6.4 (effectively 2.7) and later. */
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#if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 7)
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# define __format__ format
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# define __printf__ printf
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#endif
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#ifndef ATTRIBUTE_NORETURN
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# define ATTRIBUTE_NORETURN __attribute__ ((__noreturn__))
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#endif
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#ifndef ATTRIBUTE_UNUSED
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# define ATTRIBUTE_UNUSED __attribute__ ((__unused__))
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#endif
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/*------.
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| NLS. |
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`------*/
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#ifdef HAVE_LOCALE_H
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# include <locale.h>
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#endif
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#ifndef HAVE_SETLOCALE
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# define setlocale(Category, Locale)
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#endif
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#include "gettext.h"
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#define _(Msgid) gettext (Msgid)
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#define N_(Msgid) (Msgid)
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/*-------------------------------.
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| Fix broken compilation flags. |
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`-------------------------------*/
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#ifndef LOCALEDIR
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# define LOCALEDIR "/usr/local/share/locale"
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#endif
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/*-----------.
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| Booleans. |
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`-----------*/
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#ifndef TRUE
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# define TRUE (1)
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# define FALSE (0)
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#endif
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typedef int bool;
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/*-----------.
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| Obstacks. |
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`-----------*/
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# define obstack_chunk_alloc xmalloc
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# define obstack_chunk_free free
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# include "obstack.h"
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#define obstack_sgrow(Obs, Str) \
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obstack_grow (Obs, Str, strlen (Str))
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#define obstack_fgrow1(Obs, Format, Arg1) \
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do { \
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char buf[4096]; \
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sprintf (buf, Format, Arg1); \
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obstack_grow (Obs, buf, strlen (buf)); \
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} while (0)
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#define obstack_fgrow2(Obs, Format, Arg1, Arg2) \
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do { \
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char buf[4096]; \
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sprintf (buf, Format, Arg1, Arg2); \
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obstack_grow (Obs, buf, strlen (buf)); \
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} while (0)
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#define obstack_fgrow3(Obs, Format, Arg1, Arg2, Arg3) \
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do { \
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char buf[4096]; \
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sprintf (buf, Format, Arg1, Arg2, Arg3); \
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obstack_grow (Obs, buf, strlen (buf)); \
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} while (0)
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#define obstack_fgrow4(Obs, Format, Arg1, Arg2, Arg3, Arg4) \
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do { \
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char buf[4096]; \
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sprintf (buf, Format, Arg1, Arg2, Arg3, Arg4); \
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obstack_grow (Obs, buf, strlen (buf)); \
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} while (0)
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/*-----------------------------------------.
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| Extensions to use for the output files. |
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`-----------------------------------------*/
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#ifdef VMS
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/* VMS. */
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# define EXT_TAB "_tab"
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# define EXT_OUTPUT ".output"
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#else /* ! VMS */
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# ifdef MSDOS
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/* MS DOS. */
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# define EXT_TAB "_tab"
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# define EXT_OUTPUT ".out"
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# else /* ! MSDOS */
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/* Standard. */
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# define EXT_TAB ".tab"
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# define EXT_OUTPUT ".output"
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# endif /* ! MSDOS */
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#endif /* ! VMS */
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#ifndef DEFAULT_TMPDIR
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# define DEFAULT_TMPDIR "/tmp"
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#endif
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/*---------------------.
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| Free a linked list. |
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`---------------------*/
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#define LIST_FREE(Type, List) \
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do { \
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Type *_node, *_next; \
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for (_node = List; _node; _node = _next) \
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{ \
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_next = _node->next; \
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XFREE (_node); \
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} \
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} while (0)
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/*---------------------------------------------.
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| Debugging memory allocation (must be last). |
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`---------------------------------------------*/
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# if WITH_DMALLOC
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# define DMALLOC_FUNC_CHECK
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# include <dmalloc.h>
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# endif /* WITH_DMALLOC */
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#endif /* ! BISON_SYSTEM_H */
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