xref: /original-bsd/usr.bin/more/less.h (revision 79386b64)
1 /*
2  * Copyright (c) 1988 Mark Nudleman
3  * Copyright (c) 1988 Regents of the University of California.
4  * All rights reserved.
5  *
6  * Redistribution and use in source and binary forms are permitted
7  * provided that the above copyright notice and this paragraph are
8  * duplicated in all such forms and that any documentation,
9  * advertising materials, and other materials related to such
10  * distribution and use acknowledge that the software was developed
11  * by Mark Nudleman and the University of California, Berkeley.  The
12  * name of Mark Nudleman or the
13  * University may not be used to endorse or promote products derived
14  * from this software without specific prior written permission.
15  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
16  * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
17  * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
18  *
19  *	@(#)less.h	5.6 (Berkeley) 07/25/88
20  */
21 
22 /*
23  * Standard include file for "less".
24  */
25 
26 /*
27  * Language details.
28  */
29 #define	public		/* PUBLIC FUNCTION */
30 
31 /*
32  * Special types and constants.
33  */
34 typedef long		POSITION;
35 /*
36  * {{ Warning: if POSITION is changed to other than "long",
37  *    you may have to change some of the printfs which use "%ld"
38  *    to print a variable of type POSITION. }}
39  */
40 
41 #define	NULL_POSITION	((POSITION)(-1))
42 
43 /*
44  * The type of signal handler functions.
45  * Usually int, although it should be void.
46  */
47 typedef	int		HANDLER;
48 
49 
50 #define	FILENAME	128	/* Max size of a filename */
51 
52 #define	EOI		(0)
53 
54 #define	READ_INTR	(-2)
55 
56 /* How quiet should we be? */
57 #define	NOT_QUIET	0	/* Ring bell at eof and for errors */
58 #define	LITTLE_QUIET	1	/* Ring bell only for errors */
59 #define	VERY_QUIET	2	/* Never ring bell */
60 
61 /* How should we prompt? */
62 #define	PR_SHORT	0	/* Prompt with colon */
63 #define	PR_MEDIUM	1	/* Prompt with message */
64 #define	PR_LONG		2	/* Prompt with longer message */
65 
66 /* How should we handle backspaces? */
67 #define	BS_SPECIAL	0	/* Do special things for underlining and bold */
68 #define	BS_NORMAL	1	/* \b treated as normal char; actually output */
69 #define	BS_CONTROL	2	/* \b treated as control char; prints as ^H */
70 
71 /* Special chars used to tell put_line() to do something special */
72 #define	UL_CHAR		'\201'	/* Enter underline mode */
73 #define	UE_CHAR		'\202'	/* Exit underline mode */
74 #define	BO_CHAR		'\203'	/* Enter boldface mode */
75 #define	BE_CHAR		'\204'	/* Exit boldface mode */
76 
77 #define	CONTROL(c)		((c)&037)
78 
79 #include <sys/param.h>
80 #include <sys/file.h>
81 
82 /* Library function declarations */
83 off_t lseek();
84 char *calloc();
85 
86 #include "funcs.h"
87