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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.
*
* @(#)input.h 8.2 (Berkeley) 5/4/95
* $FreeBSD: releng/12.0/bin/sh/input.h 314436 2017-02-28 23:42:47Z imp $
*/
/* 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 const char *parsenextc; /* next character in input buffer */
struct alias;
struct parsefile;
void resetinput(void);
int pgetc(void);
int preadbuffer(void);
int preadateof(void);
void pungetc(void);
void pushstring(const char *, int, struct alias *);
void setinputfile(const char *, int);
void setinputfd(int, int);
void setinputstring(const char *, int);
void popfile(void);
struct parsefile *getcurrentfile(void);
void popfilesupto(struct parsefile *);
void popallfiles(void);
void closescript(void);
#define pgetc_macro() (--parsenleft >= 0? *parsenextc++ : preadbuffer())
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