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-/*-
- * Copyright (c) 1991, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * This code is derived from software contributed to Berkeley by
- * Kenneth Almquist.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- *	@(#)eval.h	8.2 (Berkeley) 5/4/95
- * $FreeBSD: releng/12.0/bin/sh/eval.h 314436 2017-02-28 23:42:47Z imp $
- */
-
-extern char *commandname;	/* currently executing command */
-extern int exitstatus;		/* exit status of last command */
-extern int oexitstatus;		/* saved exit status */
-extern struct arglist *cmdenviron;  /* environment for builtin command */
-
-
-struct backcmd {		/* result of evalbackcmd */
-	int fd;			/* file descriptor to read from */
-	char *buf;		/* buffer */
-	int nleft;		/* number of chars in buffer */
-	struct job *jp;		/* job structure for command */
-};
-
-void reseteval(void);
-
-/* flags in argument to evaltree/evalstring */
-#define EV_EXIT 01		/* exit after evaluating tree */
-#define EV_TESTED 02		/* exit status is checked; ignore -e flag */
-#define EV_BACKCMD 04		/* command executing within back quotes */
-
-void evalstring(const char *, int);
-union node;	/* BLETCH for ansi C */
-void evaltree(union node *, int);
-void evalbackcmd(union node *, struct backcmd *);
-
-/* in_function returns nonzero if we are currently evaluating a function */
-#define in_function()	funcnest
-extern int funcnest;
-extern int evalskip;
-extern int skipcount;
-
-/* reasons for skipping commands (see comment on breakcmd routine) */
-#define SKIPBREAK	1
-#define SKIPCONT	2
-#define SKIPRETURN	3