cmFortranParser: Port to bison 3

Use %-directives to specify the scanner/lexer arguments and update the
yyerror signature.  Reduce the list of post-bison modifications needed.

Source/cmFortranParser.y

@@ -32,9 +32,7 @@ Run bison like this:
           cmFortranParser.y
 
 Modify cmFortranParser.cxx:
-  - remove TABs
-  - remove use of the 'register' storage class specifier
-  - Remove the yyerrorlab block in range ["goto yyerrlab1", "yyerrlab1:"]
+  - "#if 0" out yyerrorlab block in range ["goto yyerrlab1", "yyerrlab1:"]
 */
 
 /*-------------------------------------------------------------------------*/
@@ -44,18 +42,11 @@ Modify cmFortranParser.cxx:
 
 #include <cmsys/String.h>
 
-/* Configure the parser to use a lexer object.  */
-#define YYPARSE_PARAM yyscanner
-#define YYLEX_PARAM yyscanner
-#define YYERROR_VERBOSE 1
-#define cmFortran_yyerror(x) \
-        cmFortranError(yyscanner, x)
-
 /* Forward declare the lexer entry point.  */
 YY_DECL;
 
-/* Helper function to forward error callback.  */
-static void cmFortranError(yyscan_t yyscanner, const char* message)
+/* Helper function to forward error callback from parser.  */
+static void cmFortran_yyerror(yyscan_t yyscanner, const char* message)
 {
   cmFortranParser* parser = cmFortran_yyget_extra(yyscanner);
   cmFortranParser_Error(parser, message);
@@ -79,7 +70,13 @@ static bool cmFortranParserIsKeyword(const char* word,
 %}
 
 /* Generate a reentrant parser object.  */
-%pure-parser
+%define api.pure
+
+/* Configure the parser to use a lexer object.  */
+%lex-param   {yyscan_t yyscanner}
+%parse-param {yyscan_t yyscanner}
+
+%define parse.error verbose
 
 %union {
   char* string;

Source/cmFortranParserTokens.h

@@ -1,8 +1,8 @@
-/* A Bison parser, made by GNU Bison 2.5.  */
+/* A Bison parser, made by GNU Bison 3.0.2.  */
 
 /* Bison interface for Yacc-like parsers in C
 
-      Copyright (C) 1984, 1989-1990, 2000-2011 Free Software Foundation, Inc.
+   Copyright (C) 1984, 1989-1990, 2000-2013 Free Software Foundation, Inc.
 
    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
@@ -30,13 +30,21 @@
    This special exception was added by the Free Software Foundation in
    version 2.2 of Bison.  */
 
+#ifndef YY_CMFORTRAN_YY_CMFORTRANPARSERTOKENS_H_INCLUDED
+# define YY_CMFORTRAN_YY_CMFORTRANPARSERTOKENS_H_INCLUDED
+/* Debug traces.  */
+#ifndef YYDEBUG
+# define YYDEBUG 0
+#endif
+#if YYDEBUG
+extern int cmFortran_yydebug;
+#endif
 
-/* Tokens.  */
+/* Token type.  */
 #ifndef YYTOKENTYPE
 # define YYTOKENTYPE
-   /* Put the tokens into the symbol table, so that GDB and other debuggers
-      know about them.  */
-   enum yytokentype {
+  enum yytokentype
+  {
     EOSTMT = 258,
     ASSIGNMENT_OP = 259,
     GARBAGE = 260,
@@ -99,24 +107,23 @@
 #define WORD 285
 #define CPP_INCLUDE_ANGLE 286
 
-
-
-
+/* Value type.  */
 #if ! defined YYSTYPE && ! defined YYSTYPE_IS_DECLARED
-typedef union YYSTYPE
+typedef union YYSTYPE YYSTYPE;
+union YYSTYPE
 {
-
-/* Line 2068 of yacc.c  */
-#line 89 "cmFortranParser.y"
+#line 81 "cmFortranParser.y" /* yacc.c:1909  */
 
   char* string;
 
-
-
-/* Line 2068 of yacc.c  */
-#line 118 "cmFortranParserTokens.h"
-} YYSTYPE;
+#line 120 "cmFortranParserTokens.h" /* yacc.c:1909  */
+};
 # define YYSTYPE_IS_TRIVIAL 1
-# define yystype YYSTYPE /* obsolescent; will be withdrawn */
 # define YYSTYPE_IS_DECLARED 1
 #endif
+
+
+
+int cmFortran_yyparse (yyscan_t yyscanner);
+
+#endif /* !YY_CMFORTRAN_YY_CMFORTRANPARSERTOKENS_H_INCLUDED  */