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git-svn-id: file:///srv/svn/joey/bsdgames-trunk@5198 a4a2c43b-8ac3-0310-8836-e0e880c912e2
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joey
355
hack/hack.termcap.c
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355
hack/hack.termcap.c
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@@ -0,0 +1,355 @@
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/* $NetBSD: hack.termcap.c,v 1.11 2001/11/02 18:27:00 christos Exp $ */
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/* For Linux: still using old termcap interface from version 1.9. */
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/*
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* Copyright (c) 1985, Stichting Centrum voor Wiskunde en Informatica,
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* Amsterdam
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* - Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* - Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* - Neither the name of the Stichting Centrum voor Wiskunde en
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* Informatica, nor the names of its contributors may be used to endorse or
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* promote products derived from this software without specific prior
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* written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
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* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
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* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
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* OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* Copyright (c) 1982 Jay Fenlason <hack@gnu.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
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* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
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* AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
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* THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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#ifndef lint
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__RCSID("$NetBSD: hack.termcap.c,v 1.11 2001/11/02 18:27:00 christos Exp $");
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#endif /* not lint */
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#include <string.h>
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#include <termios.h>
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#include <termcap.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include "hack.h"
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#include "extern.h"
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#include "def.flag.h" /* for flags.nonull */
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static char tbuf[512];
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static char *HO, *CL, *CE, *UP, *CM, *ND, *XD, *BC, *SO, *SE, *TI, *TE;
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static char *VS, *VE;
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static int SG;
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static char PC = '\0';
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char *CD; /* tested in pri.c: docorner() */
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int CO, LI; /* used in pri.c and whatis.c */
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void
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startup()
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{
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char *term;
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char *tptr;
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char *tbufptr, *pc;
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tptr = (char *) alloc(1024);
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tbufptr = tbuf;
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if (!(term = getenv("TERM")))
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error("Can't get TERM.");
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if (!strncmp(term, "5620", 4))
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flags.nonull = 1; /* this should be a termcap flag */
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if (tgetent(tptr, term) < 1)
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error("Unknown terminal type: %s.", term);
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if ((pc = tgetstr("pc", &tbufptr)) != NULL)
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PC = *pc;
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if (!(BC = tgetstr("bc", &tbufptr))) {
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if (!tgetflag("bs"))
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error("Terminal must backspace.");
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BC = tbufptr;
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tbufptr += 2;
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*BC = '\b';
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}
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HO = tgetstr("ho", &tbufptr);
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CO = tgetnum("co");
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LI = tgetnum("li");
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if (CO < COLNO || LI < ROWNO + 2)
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setclipped();
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if (!(CL = tgetstr("cl", &tbufptr)))
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error("Hack needs CL.");
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ND = tgetstr("nd", &tbufptr);
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if (tgetflag("os"))
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error("Hack can't have OS.");
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CE = tgetstr("ce", &tbufptr);
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UP = tgetstr("up", &tbufptr);
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/*
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* It seems that xd is no longer supported, and we should use a
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* linefeed instead; unfortunately this requires resetting CRMOD, and
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* many output routines will have to be modified slightly. Let's
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* leave that till the next release.
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*/
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XD = tgetstr("xd", &tbufptr);
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/* not: XD = tgetstr("do", &tbufptr); */
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if (!(CM = tgetstr("cm", &tbufptr))) {
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if (!UP && !HO)
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error("Hack needs CM or UP or HO.");
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printf("Playing hack on terminals without cm is suspect...\n");
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getret();
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}
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SO = tgetstr("so", &tbufptr);
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SE = tgetstr("se", &tbufptr);
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SG = tgetnum("sg"); /* -1: not fnd; else # of spaces left by so */
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if (!SO || !SE || (SG > 0))
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SO = SE = 0;
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CD = tgetstr("cd", &tbufptr);
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set_whole_screen(); /* uses LI and CD */
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if (tbufptr - tbuf > (int)sizeof(tbuf))
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error("TERMCAP entry too big...\n");
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free(tptr);
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}
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void
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start_screen()
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{
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xputs(TI);
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xputs(VS);
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}
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void
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end_screen()
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{
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xputs(VE);
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xputs(TE);
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}
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/* Cursor movements */
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void
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curs(x, y)
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int x, y; /* not xchar: perhaps xchar is unsigned and
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* curx-x would be unsigned as well */
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{
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if (y == cury && x == curx)
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return;
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if (!ND && (curx != x || x <= 3)) { /* Extremely primitive */
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cmov(x, y); /* bunker!wtm */
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return;
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}
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if (abs(cury - y) <= 3 && abs(curx - x) <= 3)
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nocmov(x, y);
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else if ((x <= 3 && abs(cury - y) <= 3) || (!CM && x < abs(curx - x))) {
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(void) putchar('\r');
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curx = 1;
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nocmov(x, y);
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} else if (!CM) {
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nocmov(x, y);
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} else
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cmov(x, y);
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}
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void
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nocmov(x, y)
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int x, y;
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{
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if (cury > y) {
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if (UP) {
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while (cury > y) { /* Go up. */
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xputs(UP);
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cury--;
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}
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} else if (CM) {
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cmov(x, y);
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} else if (HO) {
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home();
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curs(x, y);
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} /* else impossible("..."); */
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} else if (cury < y) {
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if (XD) {
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while (cury < y) {
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xputs(XD);
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cury++;
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}
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} else if (CM) {
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cmov(x, y);
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} else {
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while (cury < y) {
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xputc('\n');
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curx = 1;
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cury++;
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}
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}
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}
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if (curx < x) { /* Go to the right. */
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if (!ND)
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cmov(x, y);
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else /* bah */
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/* should instead print what is there already */
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while (curx < x) {
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xputs(ND);
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curx++;
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}
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} else if (curx > x) {
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while (curx > x) { /* Go to the left. */
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xputs(BC);
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curx--;
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}
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}
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}
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void
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cmov(x, y)
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int x, y;
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{
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xputs(tgoto(CM, x - 1, y - 1));
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cury = y;
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curx = x;
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}
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int
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xputc(c)
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char c;
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{
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return (fputc(c, stdout));
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}
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void
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xputs(s)
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char *s;
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{
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tputs(s, 1, xputc);
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}
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void
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cl_end()
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{
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if (CE)
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xputs(CE);
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else { /* no-CE fix - free after Harold Rynes */
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/*
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* this looks terrible, especially on a slow terminal but is
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* better than nothing
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*/
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int cx = curx, cy = cury;
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while (curx < COLNO) {
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xputc(' ');
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curx++;
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}
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curs(cx, cy);
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}
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}
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void
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clear_screen()
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{
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xputs(CL);
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curx = cury = 1;
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}
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void
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home()
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{
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if (HO)
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xputs(HO);
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else if (CM)
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xputs(tgoto(CM, 0, 0));
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else
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curs(1, 1); /* using UP ... */
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curx = cury = 1;
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}
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void
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standoutbeg()
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{
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if (SO)
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xputs(SO);
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}
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void
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standoutend()
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{
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if (SE)
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xputs(SE);
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}
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void
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backsp()
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{
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xputs(BC);
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curx--;
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}
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void
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bell()
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{
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(void) putchar('\007'); /* curx does not change */
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(void) fflush(stdout);
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}
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void
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delay_output()
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{
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/* delay 50 ms - could also use a 'nap'-system call */
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/* or the usleep call like this :-) */
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usleep(50000);
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}
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void
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cl_eos()
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{ /* free after Robert Viduya *//* must only be
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* called with curx = 1 */
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if (CD)
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xputs(CD);
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else {
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int cx = curx, cy = cury;
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while (cury <= LI - 2) {
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cl_end();
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xputc('\n');
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curx = 1;
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cury++;
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}
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cl_end();
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curs(cx, cy);
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}
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}
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