input.h revision 1.8.6.1 
1/*	$NetBSD: input.h,v 1.8.6.1 1997/01/26 04:57:22 rat Exp $	*/
2
3/*-
4 * Copyright (c) 1991, 1993
5 *	The Regents of the University of California.  All rights reserved.
6 *
7 * This code is derived from software contributed to Berkeley by
8 * Kenneth Almquist.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 *    notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 *    notice, this list of conditions and the following disclaimer in the
17 *    documentation and/or other materials provided with the distribution.
18 * 3. All advertising materials mentioning features or use of this software
19 *    must display the following acknowledgement:
20 *	This product includes software developed by the University of
21 *	California, Berkeley and its contributors.
22 * 4. Neither the name of the University nor the names of its contributors
23 *    may be used to endorse or promote products derived from this software
24 *    without specific prior written permission.
25 *
26 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
27 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
28 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
29 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
30 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
31 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
32 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
33 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
34 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
35 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
36 * SUCH DAMAGE.
37 *
38 *	@(#)input.h	8.2 (Berkeley) 5/4/95
39 */
40
41/* PEOF (the end of file marker) is defined in syntax.h */
42
43/*
44 * The input line number.  Input.c just defines this variable, and saves
45 * and restores it when files are pushed and popped.  The user of this
46 * package must set its value.
47 */
48extern int plinno;
49extern int parsenleft;		/* number of characters left in input buffer */
50extern char *parsenextc;	/* next character in input buffer */
51extern int init_editline;	/* 0 == not setup, 1 == OK, -1 == failed */
52
53char *pfgets __P((char *, int));
54int pgetc __P((void));
55int preadbuffer __P((void));
56void pungetc __P((void));
57void pushstring __P((char *, int, void *));
58void popstring __P((void));
59void setinputfile __P((char *, int));
60void setinputfd __P((int, int));
61void setinputstring __P((char *, int));
62void popfile __P((void));
63void popallfiles __P((void));
64void closescript __P((void));
65
66#define pgetc_macro()	(--parsenleft >= 0? *parsenextc++ : preadbuffer())
67