xref: /netbsd-src/lib/libcurses/curses.c (revision 4472dbe5e3bd91ef2540bada7a7ca7384627ff9b)
1 /*	$NetBSD: curses.c,v 1.16 2000/04/27 00:21:22 jdc Exp $	*/
2 
3 /*
4  * Copyright (c) 1981, 1993, 1994
5  *	The Regents of the University of California.  All rights reserved.
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer.
12  * 2. Redistributions in binary form must reproduce the above copyright
13  *    notice, this list of conditions and the following disclaimer in the
14  *    documentation and/or other materials provided with the distribution.
15  * 3. All advertising materials mentioning features or use of this software
16  *    must display the following acknowledgement:
17  *	This product includes software developed by the University of
18  *	California, Berkeley and its contributors.
19  * 4. Neither the name of the University nor the names of its contributors
20  *    may be used to endorse or promote products derived from this software
21  *    without specific prior written permission.
22  *
23  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
24  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
27  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33  * SUCH DAMAGE.
34  */
35 
36 #include <sys/cdefs.h>
37 #ifndef lint
38 #if 0
39 static char sccsid[] = "@(#)curses.c	8.3 (Berkeley) 5/4/94";
40 #else
41 __RCSID("$NetBSD: curses.c,v 1.16 2000/04/27 00:21:22 jdc Exp $");
42 #endif
43 #endif				/* not lint */
44 
45 #include "curses.h"
46 
47 /* Private. */
48 int	__echoit = 1;			/* If stty indicates ECHO. */
49 int	__pfast;
50 int	__rawmode = 0;			/* If stty indicates RAW mode. */
51 int	__noqch = 0;			/*
52 					 * If terminal doesn't have
53 					 * insert/delete line capabilities
54 					 * for quick change on refresh.
55 					 */
56 char	AM, UT, BS, CA, CC, DA, EO, HC, HL, IN, MI, MS, NC, NS, OS, PC,
57 	UL, XB, XN, XT, XS, XX;
58 int	PA, cO, nc;
59 char	*AC, *AE, *AL, *AS, *BC, *BL, *BT, *CD, *CE, *CL, *CM, *CR, *CS,
60 	*DC, *DL, *DM, *DO, *Ea, *ED, *EI, *K0, *K1, *K2, *K3, *K4, *K5,
61 	*K6, *K7, *K8, *K9, *HO, *IC, *IM, *IP, *KD, *KE, *KH, *KL, *KR,
62 	*KS, *KU, *LL, *MA, *MB, *MD, *ME, *MH, *MK, *MM, *MO, *MP, *MR,
63 	*ND, *NL, *OC, *OP, *RC, *SC, *SE, *SF, *SO, *SP, *SR, *TA, *TE,
64 	*TI, *UC, *UE, *UP, *US, *VB, *VI, *VS, *VE, *ab, *af, *al, *dl, *iC,
65 	*iP, *sB, *sF, *sf, *sr, *AL_PARM, *DL_PARM, *UP_PARM, *DOWN_PARM,
66 	*LEFT_PARM, *RIGHT_PARM;
67 /*
68  * Public.
69  *
70  * XXX
71  * UPPERCASE isn't used by libcurses, and is left for backward
72  * compatibility only.
73  */
74 WINDOW	*curscr;			/* Current screen. */
75 WINDOW	*stdscr;			/* Standard screen. */
76 WINDOW	*__virtscr;			/* Virtual screen (for doupdate()). */
77 int	 COLS;				/* Columns on the screen. */
78 int	 LINES;				/* Lines on the screen. */
79 int	 COLORS;			/* Maximum colors on the screen */
80 int	 COLOR_PAIRS;			/* Maximum color pairs on the screen */
81 int	 My_term = 0;			/* Use Def_term regardless. */
82 const char	*Def_term = "unknown";		/* Default terminal type. */
83 char	 GT;				/* Gtty indicates tabs. */
84 char	 NONL;				/* Term can't hack LF doing a CR. */
85 char	 UPPERCASE;			/* Terminal is uppercase only. */
86