input.h revision 1.3 1 /*-
2 * Copyright (c) 1991 The Regents of the University of California.
3 * All rights reserved.
4 *
5 * This code is derived from software contributed to Berkeley by
6 * Kenneth Almquist.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. All advertising materials mentioning features or use of this software
17 * must display the following acknowledgement:
18 * This product includes software developed by the University of
19 * California, Berkeley and its contributors.
20 * 4. Neither the name of the University nor the names of its contributors
21 * may be used to endorse or promote products derived from this software
22 * without specific prior written permission.
23 *
24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 * SUCH DAMAGE.
35 *
36 * @(#)input.h 5.1 (Berkeley) 3/7/91
37 *
38 * $Header: /tank/opengrok/rsync2/NetBSD/src/bin/sh/input.h,v 1.3 1993/03/23 00:28:09 cgd Exp $
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 */
48 extern int plinno;
49 extern int parsenleft; /* number of characters left in input buffer */
50 extern char *parsenextc; /* next character in input buffer */
51
52
53 #ifdef __STDC__
54 char *pfgets(char *, int);
55 int pgetc(void);
56 int preadbuffer(void);
57 void pungetc(void);
58 void ppushback(char *, int);
59 void setinputfile(char *, int);
60 void setinputfd(int, int);
61 void setinputstring(char *, int);
62 void popfile(void);
63 void popallfiles(void);
64 void closescript(void);
65 #else
66 char *pfgets();
67 int pgetc();
68 int preadbuffer();
69 void pungetc();
70 void ppushback();
71 void setinputfile();
72 void setinputfd();
73 void setinputstring();
74 void popfile();
75 void popallfiles();
76 void closescript();
77 #endif
78
79 #define pgetc_macro() (--parsenleft >= 0? *parsenextc++ : preadbuffer())
80