initial import of bash 4.1

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+/* A Bison parser, made by GNU Bison 2.3.  */
+
+/* Skeleton interface for Bison's Yacc-like parsers in C
+
+   Copyright (C) 1984, 1989, 1990, 2000, 2001, 2002, 2003, 2004, 2005, 2006
+   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
+   the Free Software Foundation; either version 2, 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.  */
+
+/* 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.  */
+
+/* Tokens.  */
+#ifndef YYTOKENTYPE
+# define YYTOKENTYPE
+   /* Put the tokens into the symbol table, so that GDB and other debuggers
+      know about them.  */
+   enum yytokentype {
+     IF = 258,
+     THEN = 259,
+     ELSE = 260,
+     ELIF = 261,
+     FI = 262,
+     CASE = 263,
+     ESAC = 264,
+     FOR = 265,
+     SELECT = 266,
+     WHILE = 267,
+     UNTIL = 268,
+     DO = 269,
+     DONE = 270,
+     FUNCTION = 271,
+     COPROC = 272,
+     COND_START = 273,
+     COND_END = 274,
+     COND_ERROR = 275,
+     IN = 276,
+     BANG = 277,
+     TIME = 278,
+     TIMEOPT = 279,
+     WORD = 280,
+     ASSIGNMENT_WORD = 281,
+     REDIR_WORD = 282,
+     NUMBER = 283,
+     ARITH_CMD = 284,
+     ARITH_FOR_EXPRS = 285,
+     COND_CMD = 286,
+     AND_AND = 287,
+     OR_OR = 288,
+     GREATER_GREATER = 289,
+     LESS_LESS = 290,
+     LESS_AND = 291,
+     LESS_LESS_LESS = 292,
+     GREATER_AND = 293,
+     SEMI_SEMI = 294,
+     SEMI_AND = 295,
+     SEMI_SEMI_AND = 296,
+     LESS_LESS_MINUS = 297,
+     AND_GREATER = 298,
+     AND_GREATER_GREATER = 299,
+     LESS_GREATER = 300,
+     GREATER_BAR = 301,
+     BAR_AND = 302,
+     yacc_EOF = 303
+   };
+#endif
+/* Tokens.  */
+#define IF 258
+#define THEN 259
+#define ELSE 260
+#define ELIF 261
+#define FI 262
+#define CASE 263
+#define ESAC 264
+#define FOR 265
+#define SELECT 266
+#define WHILE 267
+#define UNTIL 268
+#define DO 269
+#define DONE 270
+#define FUNCTION 271
+#define COPROC 272
+#define COND_START 273
+#define COND_END 274
+#define COND_ERROR 275
+#define IN 276
+#define BANG 277
+#define TIME 278
+#define TIMEOPT 279
+#define WORD 280
+#define ASSIGNMENT_WORD 281
+#define REDIR_WORD 282
+#define NUMBER 283
+#define ARITH_CMD 284
+#define ARITH_FOR_EXPRS 285
+#define COND_CMD 286
+#define AND_AND 287
+#define OR_OR 288
+#define GREATER_GREATER 289
+#define LESS_LESS 290
+#define LESS_AND 291
+#define LESS_LESS_LESS 292
+#define GREATER_AND 293
+#define SEMI_SEMI 294
+#define SEMI_AND 295
+#define SEMI_SEMI_AND 296
+#define LESS_LESS_MINUS 297
+#define AND_GREATER 298
+#define AND_GREATER_GREATER 299
+#define LESS_GREATER 300
+#define GREATER_BAR 301
+#define BAR_AND 302
+#define yacc_EOF 303
+
+
+
+
+#if ! defined YYSTYPE && ! defined YYSTYPE_IS_DECLARED
+typedef union YYSTYPE
+#line 320 "/Users/chet/src/bash/src/parse.y"
+{
+  WORD_DESC *word;		/* the word that we read. */
+  int number;			/* the number that we read. */
+  WORD_LIST *word_list;
+  COMMAND *command;
+  REDIRECT *redirect;
+  ELEMENT element;
+  PATTERN_LIST *pattern;
+}
+/* Line 1489 of yacc.c.  */
+#line 155 "y.tab.h"
+	YYSTYPE;
+# define yystype YYSTYPE /* obsolescent; will be withdrawn */
+# define YYSTYPE_IS_DECLARED 1
+# define YYSTYPE_IS_TRIVIAL 1
+#endif
+
+extern YYSTYPE yylval;
+