11556Srgrimes/*-
21556Srgrimes * Copyright (c) 1991, 1993
31556Srgrimes *	The Regents of the University of California.  All rights reserved.
41556Srgrimes *
51556Srgrimes * This code is derived from software contributed to Berkeley by
61556Srgrimes * Kenneth Almquist.
71556Srgrimes *
81556Srgrimes * Redistribution and use in source and binary forms, with or without
91556Srgrimes * modification, are permitted provided that the following conditions
101556Srgrimes * are met:
111556Srgrimes * 1. Redistributions of source code must retain the above copyright
121556Srgrimes *    notice, this list of conditions and the following disclaimer.
131556Srgrimes * 2. Redistributions in binary form must reproduce the above copyright
141556Srgrimes *    notice, this list of conditions and the following disclaimer in the
151556Srgrimes *    documentation and/or other materials provided with the distribution.
161556Srgrimes * 4. Neither the name of the University nor the names of its contributors
171556Srgrimes *    may be used to endorse or promote products derived from this software
181556Srgrimes *    without specific prior written permission.
191556Srgrimes *
201556Srgrimes * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
211556Srgrimes * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
221556Srgrimes * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
231556Srgrimes * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
241556Srgrimes * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
251556Srgrimes * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
261556Srgrimes * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
271556Srgrimes * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
281556Srgrimes * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
291556Srgrimes * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
301556Srgrimes * SUCH DAMAGE.
311556Srgrimes *
3217987Speter *	@(#)input.h	8.2 (Berkeley) 5/4/95
3350471Speter * $FreeBSD$
341556Srgrimes */
351556Srgrimes
361556Srgrimes/* PEOF (the end of file marker) is defined in syntax.h */
371556Srgrimes
381556Srgrimes/*
391556Srgrimes * The input line number.  Input.c just defines this variable, and saves
401556Srgrimes * and restores it when files are pushed and popped.  The user of this
411556Srgrimes * package must set its value.
421556Srgrimes */
431556Srgrimesextern int plinno;
441556Srgrimesextern int parsenleft;		/* number of characters left in input buffer */
451556Srgrimesextern char *parsenextc;	/* next character in input buffer */
461556Srgrimesextern int init_editline;	/* 0 == not setup, 1 == OK, -1 == failed */
471556Srgrimes
48199647Sjillesstruct parsefile;
49199647Sjilles
5090111Simpchar *pfgets(char *, int);
5190111Simpint pgetc(void);
5290111Simpint preadbuffer(void);
53194128Sjillesint preadateof(void);
5490111Simpvoid pungetc(void);
5590111Simpvoid pushstring(char *, int, void *);
56200956Sjillesvoid setinputfile(const char *, int);
5790111Simpvoid setinputfd(int, int);
5890111Simpvoid setinputstring(char *, int);
5990111Simpvoid popfile(void);
60199647Sjillesstruct parsefile *getcurrentfile(void);
61199647Sjillesvoid popfilesupto(struct parsefile *);
6290111Simpvoid popallfiles(void);
6390111Simpvoid closescript(void);
641556Srgrimes
651556Srgrimes#define pgetc_macro()	(--parsenleft >= 0? *parsenextc++ : preadbuffer())
66