%define push_pull -> %define api.push_pull. Discussed starting at

[bison.git] / data / yacc.c

diff --git a/data/yacc.c b/data/yacc.c
index 74a014f131a900895fbfd41dc4fc4dcfec9486c3..4461f0231b193b1d2259e8b3715e6b5cc1f60205 100644 (file)
--- a/data/yacc.c
+++ b/data/yacc.c
@@ -1,24 +1,26 @@
-m4_divert(-1)                                                -*- C -*-
+                                                             -*- C -*-
 
 # Yacc compatible skeleton for Bison
 
-# Copyright (C) 1984, 1989, 1990, 2000, 2001, 2002, 2003, 2004, 2005, 2006
-# Free Software Foundation, Inc.
+# Copyright (C) 1984, 1989, 1990, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+# 2007 Free Software Foundation, Inc.
 
-# This program is free software; you can redistribute it and/or modify
+# This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 2 of the License, or
+# the Free Software Foundation, either version 3 of the License, or
 # (at your option) any later version.
-
+#
 # This program is distributed in the hope that it will be useful,
 # but WITHOUT ANY WARRANTY; without even the implied warranty of
 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 # GNU General Public License for more details.
-
+#
 # You should have received a copy of the GNU General Public License
-# along with this program; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301  USA
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+# This hack will go away when we mv push.c yacc.c.
+m4_ifndef([b4_percent_define(api.push_pull)],
+[m4_if(b4_use_push_for_pull_flag, [0], [
 
 m4_include(b4_pkgdatadir/[c.m4])
 
@@ -133,8 +135,8 @@ m4_define([b4_rhs_location],
 
 # We do want M4 expansion after # for CPP macros.
 m4_changecom()
-m4_divert(0)dnl
-@output @output_parser_name@
+m4_divert_push(0)dnl
+@output(b4_parser_file_name@)
 b4_copyright([Skeleton implementation for Bison's Yacc-like parsers in C],dnl '
   [1984, 1989, 1990, 2000, 2001, 2002, 2003, 2004, 2005, 2006])[
 
@@ -149,6 +151,7 @@ b4_copyright([Skeleton implementation for Bison's Yacc-like parsers in C],dnl '
    USER NAME SPACE" below.  */
 
 ]b4_identification
+b4_percent_code_get([[top]])[]dnl
 m4_if(b4_prefix, [yy], [],
 [/* Substitute the variable and function names.  */
 #define yyparse b4_prefix[]parse
@@ -161,7 +164,7 @@ m4_if(b4_prefix, [yy], [],
 b4_locations_if([#define yylloc b4_prefix[]lloc])])[
 
 /* Copy the first part of user declarations.  */
-]b4_pre_prologue[
+]b4_user_pre_prologue[
 
 /* Enabling traces.  */
 #ifndef YYDEBUG
@@ -181,17 +184,16 @@ b4_locations_if([#define yylloc b4_prefix[]lloc])])[
 # define YYTOKEN_TABLE ]b4_token_table[
 #endif
 
-]m4_ifdef([b4_start_header],
-[[/* Copy the %start-header blocks.  */
-]b4_start_header])[]dnl
+]b4_percent_code_get([[requires]])[]dnl
 
 b4_token_enums_defines(b4_tokens)[
 
 #if ! defined YYSTYPE && ! defined YYSTYPE_IS_DECLARED
 ]m4_ifdef([b4_stype],
 [[typedef union ]b4_union_name[
+{
 ]b4_user_stype[
-       YYSTYPE;
+} YYSTYPE;
 # define YYSTYPE_IS_TRIVIAL 1]],
 [m4_if(b4_tag_seen_flag, 0,
 [[typedef int YYSTYPE;
@@ -213,14 +215,13 @@ typedef struct YYLTYPE
 # define YYLTYPE_IS_TRIVIAL 1
 #endif])
 
-m4_ifdef([b4_end_header],
-[[/* Copy the %end-header blocks.  */
-]b4_end_header])[]dnl
+b4_percent_code_get([[provides]])[]dnl
 
 [/* Copy the second part of user declarations.  */
-]b4_user_post_prologue[
+]b4_user_post_prologue
+b4_percent_code_get[]dnl
 
-#ifdef short
+[#ifdef short
 # undef short
 #endif
 
@@ -712,12 +713,12 @@ do {                                                              \
   /* The symbols being reduced.  */
   for (yyi = 0; yyi < yynrhs; yyi++)
     {
-      fprintf (stderr, "   $%d = ", yyi + 1);
+      YYFPRINTF (stderr, "   $%d = ", yyi + 1);
       yy_symbol_print (stderr, yyrhs[yyprhs[yyrule] + yyi],
                       &]b4_rhs_value(yynrhs, yyi + 1)[
                       ]b4_locations_if([, &]b4_rhs_location(yynrhs, yyi + 1))[]dnl
                       b4_user_args[);
-      fprintf (stderr, "\n");
+      YYFPRINTF (stderr, "\n");
     }
 }
 
@@ -1446,7 +1447,7 @@ yyabortlab:
   yyresult = 1;
   goto yyreturn;
 
-#ifndef yyoverflow
+#if !defined(yyoverflow) || YYERROR_VERBOSE
 /*-------------------------------------------------.
 | yyexhaustedlab -- memory exhaustion comes here.  |
 `-------------------------------------------------*/
@@ -1485,21 +1486,20 @@ yyreturn:
 
 b4_epilogue
 b4_defines_if(
-[@output @output_header_name@
+[@output(b4_spec_defines_file@)
 b4_copyright([Skeleton interface for Bison's Yacc-like parsers in C],dnl '
   [1984, 1989, 1990, 2000, 2001, 2002, 2003, 2004, 2005, 2006])
 
-m4_ifdef([b4_start_header],
-[[/* Copy the %start-header blocks.  */
-]b4_start_header])[]dnl
+b4_percent_code_get([[requires]])[]dnl
 
 b4_token_enums_defines(b4_tokens)
 
 [#if ! defined YYSTYPE && ! defined YYSTYPE_IS_DECLARED
 ]m4_ifdef([b4_stype],
 [[typedef union ]b4_union_name[
+{
 ]b4_user_stype[
-       YYSTYPE;
+} YYSTYPE;
 # define YYSTYPE_IS_TRIVIAL 1]],
 [m4_if(b4_tag_seen_flag, 0,
 [[typedef int YYSTYPE;
@@ -1529,7 +1529,10 @@ typedef struct YYLTYPE
           [extern YYLTYPE b4_prefix[]lloc;])
 )dnl b4_locations_if
 
-m4_ifdef([b4_end_header],
-[[/* Copy the %end-header blocks.  */
-]b4_end_header])[]dnl
+b4_percent_code_get([[provides]])
 ])dnl b4_defines_if
+m4_divert_pop(0)
+
+],
+[m4_include(b4_pkgdatadir/[push.c])])],
+[m4_include(b4_pkgdatadir/[push.c])])