/*	$NetBSD: input.h,v 1.15 2003/08/07 09:05:33 agc Exp $	*/

/*-
 * 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.
 *
 *	@(#)input.h	8.2 (Berkeley) 5/4/95
 */

/* PEOF (the end of file marker) is defined in syntax.h */

/*
 * The input line number.  Input.c just defines this variable, and saves
 * and restores it when files are pushed and popped.  The user of this
 * package must set its value.
 */
//extern int plinno;
//extern int parsenleft;		/* number of characters left in input buffer */
//extern char *parsenextc;	/* next character in input buffer */
//extern int init_editline;	/* 0 == not setup, 1 == OK, -1 == failed */

char *pfgets(struct shinstance *, char *, int);
int pgetc(struct shinstance *);
int preadbuffer(struct shinstance *);
void pungetc(struct shinstance *);
void pushstring(struct shinstance *, char *, size_t, void *);
void popstring(struct shinstance *);
void setinputfile(struct shinstance *, const char *, int);
void setinputfd(struct shinstance *, int, int);
void setinputstring(struct shinstance *, char *, int);
void popfile(struct shinstance *);
void popallfiles(struct shinstance *);
void closescript(struct shinstance *, int);

#define pgetc_macro(psh)	(--(psh)->parsenleft >= 0? *(psh)->parsenextc++ : preadbuffer(psh))