* data/glr.c (yyreportTree): Make room in yystates for the state

[bison.git] / data / lalr1.cc

diff --git a/data/lalr1.cc b/data/lalr1.cc
index 8affc736095c4caa4c6a3feb14b466788761b890..abcdcd5d604163278d29f19f5b5919ad55cfd556 100644 (file)
--- a/data/lalr1.cc
+++ b/data/lalr1.cc
@@ -20,6 +20,11 @@ m4_divert(-1)
 # 02110-1301  USA
 
 m4_include(b4_pkgdatadir/[c++.m4])
+
+# The header is mandatory.
+b4_defines_if([],
+              [m4_fatal(b4_skeleton[: using %defines is mandatory])])
+
 # Backward compatibility.
 m4_define([b4_location_constructors])
 m4_include(b4_pkgdatadir/[location.cc])
@@ -27,25 +32,12 @@ m4_include(b4_pkgdatadir/[location.cc])
 # We do want M4 expansion after # for CPP macros.
 m4_changecom()
 m4_divert(0)dnl
-m4_if(b4_defines_flag, 0, [],
+b4_defines_if(
 [@output @output_header_name@
 b4_copyright([Skeleton interface for Bison LALR(1) parsers in C++],
   [2002, 2003, 2004, 2005, 2006])
 dnl FIXME: This is wrong, we want computed header guards.
 [
-/* As a special exception, you may create a larger work that contains
-   part or all of the Bison parser skeleton and distribute that work
-   under terms of your choice, so long as that work isn't itself a
-   parser generator using the skeleton or a modified version thereof
-   as a parser skeleton.  Alternatively, if you modify or redistribute
-   the parser skeleton itself, you may (at your option) remove this
-   special exception, which will cause the skeleton and the resulting
-   Bison output files to be licensed under the GNU General Public
-   License without this special exception.
-
-   This special exception was added by the Free Software Foundation in
-   version 2.2 of Bison.  */
-
 /* C++ LALR(1) parser skeleton written by Akim Demaille.  */
 
 #ifndef PARSER_HEADER_H
@@ -72,7 +64,7 @@ b4_syncline([@oline@], [@ofile@])[
 
 /* Enabling traces.  */
 #ifndef YYDEBUG
-# define YYDEBUG ]b4_debug[
+# define YYDEBUG ]b4_debug_flag[
 #endif
 
 /* Enabling verbose error messages.  */
@@ -80,7 +72,7 @@ b4_syncline([@oline@], [@ofile@])[
 # undef YYERROR_VERBOSE
 # define YYERROR_VERBOSE 1
 #else
-# define YYERROR_VERBOSE ]b4_error_verbose[
+# define YYERROR_VERBOSE ]b4_error_verbose_flag[
 #endif
 
 /* Enabling the token table.  */
@@ -312,26 +304,11 @@ b4_error_verbose_if([, int tok])[);
 @output @output_parser_name@
 b4_copyright([Skeleton implementation for Bison LALR(1) parsers in C++],
   [2002, 2003, 2004, 2005, 2006])
-[
-/* As a special exception, you may create a larger work that contains
-   part or all of the Bison parser skeleton and distribute that work
-   under terms of your choice, so long as that work isn't itself a
-   parser generator using the skeleton or a modified version thereof
-   as a parser skeleton.  Alternatively, if you modify or redistribute
-   the parser skeleton itself, you may (at your option) remove this
-   special exception, which will cause the skeleton and the resulting
-   Bison output files to be licensed under the GNU General Public
-   License without this special exception.
-
-   This special exception was added by the Free Software Foundation in
-   version 2.2 of Bison.  */
-]
 m4_if(b4_prefix, [yy], [],
 [
 // Take the name prefix into account.
 #define yylex   b4_prefix[]lex])
-m4_if(b4_defines_flag, 0, [],
-[
+b4_defines_if([
 #include @output_header_name@])[
 
 /* User implementation prologue.  */
@@ -607,7 +584,7 @@ b4_syncline([@oline@], [@ofile@])])dnl
        YYCDEBUG << "Reading a token: ";
        yychar = ]b4_c_function_call([yylex], [int],
                                     [[YYSTYPE*], [&yylval]][]dnl
-b4_location_if([, [[location*], [&yylloc]]])dnl
+b4_locations_if([, [[location*], [&yylloc]]])dnl
 m4_ifdef([b4_lex_param], [, ]b4_lex_param))[;
       }
 
@@ -861,14 +838,14 @@ b4_error_verbose_if([, int tok])[)
     YYUSE (yystate);
 #if YYERROR_VERBOSE
     int yyn = yypact_[yystate];
-    if (yypact_ninf_ < yyn && yyn < yylast_)
+    if (yypact_ninf_ < yyn && yyn <= yylast_)
       {
        /* Start YYX at -YYN if negative to avoid negative indexes in
           YYCHECK.  */
        int yyxbegin = yyn < 0 ? -yyn : 0;
 
        /* Stay within bounds of both yycheck and yytname.  */
-       int yychecklim = yylast_ - yyn;
+       int yychecklim = yylast_ - yyn + 1;
        int yyxend = yychecklim < yyntokens_ ? yychecklim : yyntokens_;
        int count = 0;
        for (int x = yyxbegin; x < yyxend; ++x)
@@ -1080,20 +1057,7 @@ b4_error_verbose_if([, int tok])[)
 dnl
 @output b4_dir_prefix[]stack.hh
 b4_copyright([Stack handling for Bison parsers in C++],
-  [2002, 2003, 2004, 2005, 2006])
-[
-/* As a special exception, you may create a larger work that contains
-   part or all of the Bison parser skeleton and distribute that work
-   under terms of your choice, so long as that work isn't itself a
-   parser generator using the skeleton or a modified version thereof
-   as a parser skeleton.  Alternatively, if you modify or redistribute
-   the parser skeleton itself, you may (at your option) remove this
-   special exception, which will cause the skeleton and the resulting
-   Bison output files to be licensed under the GNU General Public
-   License without this special exception.
-
-   This special exception was added by the Free Software Foundation in
-   version 2.2 of Bison.  */
+  [2002, 2003, 2004, 2005, 2006])[
 
 #ifndef BISON_STACK_HH
 # define BISON_STACK_HH