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io.c revision 1.14 
      1 /*	$NetBSD: io.c,v 1.14 1999/09/30 18:01:32 jsm Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 1980, 1993
      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[] = "@(#)io.c	8.1 (Berkeley) 5/31/93";
     40 #else
     41 __RCSID("$NetBSD: io.c,v 1.14 1999/09/30 18:01:32 jsm Exp $");
     42 #endif
     43 #endif /* not lint */
     44 
     45 #include <ctype.h>
     46 #include <curses.h>
     47 #include <signal.h>
     48 #include <stdlib.h>
     49 #include <string.h>
     50 #include <termios.h>
     51 #include <unistd.h>
     52 
     53 #if __STDC__
     54 #include <stdarg.h>
     55 #else
     56 #include <varargs.h>
     57 #endif
     58 
     59 #include "deck.h"
     60 #include "cribbage.h"
     61 #include "cribcur.h"
     62 
     63 #define	LINESIZE		128
     64 
     65 #ifdef CTRL
     66 #undef CTRL
     67 #endif
     68 #define	CTRL(X)			(X - 'A' + 1)
     69 
     70 char    linebuf[LINESIZE];
     71 
     72 const char   *const rankname[RANKS] = {
     73 	"ACE", "TWO", "THREE", "FOUR", "FIVE", "SIX", "SEVEN",
     74 	"EIGHT", "NINE", "TEN", "JACK", "QUEEN", "KING"
     75 };
     76 
     77 const char   *const rankchar[RANKS] = {
     78 	"A", "2", "3", "4", "5", "6", "7", "8", "9", "T", "J", "Q", "K"
     79 };
     80 
     81 const char *const suitname[SUITS] = {"SPADES", "HEARTS", "DIAMONDS", "CLUBS"};
     82 
     83 const char   *const suitchar[SUITS] = {"S", "H", "D", "C"};
     84 
     85 /*
     86  * msgcard:
     87  *	Call msgcrd in one of two forms
     88  */
     89 int
     90 msgcard(c, brief)
     91 	CARD c;
     92 	BOOLEAN brief;
     93 {
     94 	if (brief)
     95 		return (msgcrd(c, TRUE, NULL, TRUE));
     96 	else
     97 		return (msgcrd(c, FALSE, " of ", FALSE));
     98 }
     99 
    100 /*
    101  * msgcrd:
    102  *	Print the value of a card in ascii
    103  */
    104 int
    105 msgcrd(c, brfrank, mid, brfsuit)
    106 	CARD c;
    107 	BOOLEAN brfrank, brfsuit;
    108 	const char *mid;
    109 {
    110 	if (c.rank == EMPTY || c.suit == EMPTY)
    111 		return (FALSE);
    112 	if (brfrank)
    113 		addmsg("%1.1s", rankchar[c.rank]);
    114 	else
    115 		addmsg(rankname[c.rank]);
    116 	if (mid != NULL)
    117 		addmsg(mid);
    118 	if (brfsuit)
    119 		addmsg("%1.1s", suitchar[c.suit]);
    120 	else
    121 		addmsg(suitname[c.suit]);
    122 	return (TRUE);
    123 }
    124 
    125 /*
    126  * printcard:
    127  *	Print out a card.
    128  */
    129 void
    130 printcard(win, cardno, c, blank)
    131 	WINDOW *win;
    132 	int     cardno;
    133 	CARD    c;
    134 	BOOLEAN blank;
    135 {
    136 	prcard(win, cardno * 2, cardno, c, blank);
    137 }
    138 
    139 /*
    140  * prcard:
    141  *	Print out a card on the window at the specified location
    142  */
    143 void
    144 prcard(win, y, x, c, blank)
    145 	WINDOW *win;
    146 	int y, x;
    147 	CARD c;
    148 	BOOLEAN blank;
    149 {
    150 	if (c.rank == EMPTY)
    151 		return;
    152 
    153 	mvwaddstr(win, y + 0, x, "+-----+");
    154 	mvwaddstr(win, y + 1, x, "|     |");
    155 	mvwaddstr(win, y + 2, x, "|     |");
    156 	mvwaddstr(win, y + 3, x, "|     |");
    157 	mvwaddstr(win, y + 4, x, "+-----+");
    158 	if (!blank) {
    159 		mvwaddch(win, y + 1, x + 1, rankchar[c.rank][0]);
    160 		waddch(win, suitchar[c.suit][0]);
    161 		mvwaddch(win, y + 3, x + 4, rankchar[c.rank][0]);
    162 		waddch(win, suitchar[c.suit][0]);
    163 	}
    164 }
    165 
    166 /*
    167  * prhand:
    168  *	Print a hand of n cards
    169  */
    170 void
    171 prhand(h, n, win, blank)
    172 	const CARD h[];
    173 	int n;
    174 	WINDOW *win;
    175 	BOOLEAN blank;
    176 {
    177 	int i;
    178 
    179 	werase(win);
    180 	for (i = 0; i < n; i++)
    181 		printcard(win, i, *h++, blank);
    182 	wrefresh(win);
    183 }
    184 
    185 /*
    186  * infrom:
    187  *	reads a card, supposedly in hand, accepting unambigous brief
    188  *	input, returns the index of the card found...
    189  */
    190 int
    191 infrom(hand, n, prompt)
    192 	const CARD hand[];
    193 	int n;
    194 	const char *prompt;
    195 {
    196 	int i, j;
    197 	CARD crd;
    198 
    199 	if (n < 1) {
    200 		printf("\nINFROM: %d = n < 1!!\n", n);
    201 		exit(74);
    202 	}
    203 	for (;;) {
    204 		msg(prompt);
    205 		if (incard(&crd)) {	/* if card is full card */
    206 			if (!is_one(crd, hand, n))
    207 				msg("That's not in your hand");
    208 			else {
    209 				for (i = 0; i < n; i++)
    210 					if (hand[i].rank == crd.rank &&
    211 					    hand[i].suit == crd.suit)
    212 						break;
    213 				if (i >= n) {
    214 			printf("\nINFROM: is_one or something messed up\n");
    215 					exit(77);
    216 				}
    217 				return (i);
    218 			}
    219 		} else			/* if not full card... */
    220 			if (crd.rank != EMPTY) {
    221 				for (i = 0; i < n; i++)
    222 					if (hand[i].rank == crd.rank)
    223 						break;
    224 				if (i >= n)
    225 					msg("No such rank in your hand");
    226 				else {
    227 					for (j = i + 1; j < n; j++)
    228 						if (hand[j].rank == crd.rank)
    229 							break;
    230 					if (j < n)
    231 						msg("Ambiguous rank");
    232 					else
    233 						return (i);
    234 				}
    235 			} else
    236 				msg("Sorry, I missed that");
    237 	}
    238 	/* NOTREACHED */
    239 }
    240 
    241 /*
    242  * incard:
    243  *	Inputs a card in any format.  It reads a line ending with a CR
    244  *	and then parses it.
    245  */
    246 int
    247 incard(crd)
    248 	CARD *crd;
    249 {
    250 	int i;
    251 	int rnk, sut;
    252 	char *line, *p, *p1;
    253 	BOOLEAN retval;
    254 
    255 	retval = FALSE;
    256 	rnk = sut = EMPTY;
    257 	if (!(line = getline()))
    258 		goto gotit;
    259 	p = p1 = line;
    260 	while (*p1 != ' ' && *p1 != '\0')
    261 		++p1;
    262 	*p1++ = '\0';
    263 	if (*p == '\0')
    264 		goto gotit;
    265 
    266 	/* IMPORTANT: no real card has 2 char first name */
    267 	if (strlen(p) == 2) {	/* check for short form */
    268 		rnk = EMPTY;
    269 		for (i = 0; i < RANKS; i++) {
    270 			if (*p == *rankchar[i]) {
    271 				rnk = i;
    272 				break;
    273 			}
    274 		}
    275 		if (rnk == EMPTY)
    276 			goto gotit;	/* it's nothing... */
    277 		++p;		/* advance to next char */
    278 		sut = EMPTY;
    279 		for (i = 0; i < SUITS; i++) {
    280 			if (*p == *suitchar[i]) {
    281 				sut = i;
    282 				break;
    283 			}
    284 		}
    285 		if (sut != EMPTY)
    286 			retval = TRUE;
    287 		goto gotit;
    288 	}
    289 	rnk = EMPTY;
    290 	for (i = 0; i < RANKS; i++) {
    291 		if (!strcmp(p, rankname[i]) || !strcmp(p, rankchar[i])) {
    292 			rnk = i;
    293 			break;
    294 		}
    295 	}
    296 	if (rnk == EMPTY)
    297 		goto gotit;
    298 	p = p1;
    299 	while (*p1 != ' ' && *p1 != '\0')
    300 		++p1;
    301 	*p1++ = '\0';
    302 	if (*p == '\0')
    303 		goto gotit;
    304 	if (!strcmp("OF", p)) {
    305 		p = p1;
    306 		while (*p1 != ' ' && *p1 != '\0')
    307 			++p1;
    308 		*p1++ = '\0';
    309 		if (*p == '\0')
    310 			goto gotit;
    311 	}
    312 	sut = EMPTY;
    313 	for (i = 0; i < SUITS; i++) {
    314 		if (!strcmp(p, suitname[i]) || !strcmp(p, suitchar[i])) {
    315 			sut = i;
    316 			break;
    317 		}
    318 	}
    319 	if (sut != EMPTY)
    320 		retval = TRUE;
    321 gotit:
    322 	(*crd).rank = rnk;
    323 	(*crd).suit = sut;
    324 	return (retval);
    325 }
    326 
    327 /*
    328  * getuchar:
    329  *	Reads and converts to upper case
    330  */
    331 int
    332 getuchar()
    333 {
    334 	int c;
    335 
    336 	c = readchar();
    337 	if (islower(c))
    338 		c = toupper(c);
    339 	waddch(Msgwin, c);
    340 	return (c);
    341 }
    342 
    343 /*
    344  * number:
    345  *	Reads in a decimal number and makes sure it is between "lo" and
    346  *	"hi" inclusive.
    347  */
    348 int
    349 number(lo, hi, prompt)
    350 	int lo, hi;
    351 	const char *prompt;
    352 {
    353 	char *p;
    354 	int sum;
    355 
    356 	for (sum = 0;;) {
    357 		msg(prompt);
    358 		if (!(p = getline()) || *p == '\0') {
    359 			msg(quiet ? "Not a number" :
    360 			    "That doesn't look like a number");
    361 			continue;
    362 		}
    363 		sum = 0;
    364 
    365 		if (!isdigit(*p))
    366 			sum = lo - 1;
    367 		else
    368 			while (isdigit(*p)) {
    369 				sum = 10 * sum + (*p - '0');
    370 				++p;
    371 			}
    372 
    373 		if (*p != ' ' && *p != '\t' && *p != '\0')
    374 			sum = lo - 1;
    375 		if (sum >= lo && sum <= hi)
    376 			break;
    377 		if (sum == lo - 1)
    378 			msg("that doesn't look like a number, try again --> ");
    379 		else
    380 		msg("%d is not between %d and %d inclusive, try again --> ",
    381 			    sum, lo, hi);
    382 	}
    383 	return (sum);
    384 }
    385 
    386 /*
    387  * msg:
    388  *	Display a message at the top of the screen.
    389  */
    390 char    Msgbuf[BUFSIZ] = {'\0'};
    391 int     Mpos = 0;
    392 static int Newpos = 0;
    393 
    394 void
    395 #if __STDC__
    396 msg(const char *fmt, ...)
    397 #else
    398 msg(fmt, va_alist)
    399 	char *fmt;
    400 	va_dcl
    401 #endif
    402 {
    403 	va_list ap;
    404 
    405 #if __STDC__
    406 	va_start(ap, fmt);
    407 #else
    408 	va_start(ap);
    409 #endif
    410 	(void)vsprintf(&Msgbuf[Newpos], fmt, ap);
    411 	Newpos = strlen(Msgbuf);
    412 	va_end(ap);
    413 	endmsg();
    414 }
    415 
    416 /*
    417  * addmsg:
    418  *	Add things to the current message
    419  */
    420 void
    421 #if __STDC__
    422 addmsg(const char *fmt, ...)
    423 #else
    424 addmsg(fmt, va_alist)
    425 	char *fmt;
    426 	va_dcl
    427 #endif
    428 {
    429 	va_list ap;
    430 
    431 #if __STDC__
    432 	va_start(ap, fmt);
    433 #else
    434 	va_start(ap);
    435 #endif
    436 	(void)vsprintf(&Msgbuf[Newpos], fmt, ap);
    437 	Newpos = strlen(Msgbuf);
    438 	va_end(ap);
    439 }
    440 
    441 /*
    442  * endmsg:
    443  *	Display a new msg.
    444  */
    445 int     Lineno = 0;
    446 
    447 void
    448 endmsg()
    449 {
    450 	static int lastline = 0;
    451 	int len;
    452 	char *mp, *omp;
    453 
    454 	/* All messages should start with uppercase */
    455 	mvaddch(lastline + Y_MSG_START, SCORE_X, ' ');
    456 	if (islower(Msgbuf[0]) && Msgbuf[1] != ')')
    457 		Msgbuf[0] = toupper(Msgbuf[0]);
    458 	mp = Msgbuf;
    459 	len = strlen(mp);
    460 	if (len / MSG_X + Lineno >= MSG_Y) {
    461 		while (Lineno < MSG_Y) {
    462 			wmove(Msgwin, Lineno++, 0);
    463 			wclrtoeol(Msgwin);
    464 		}
    465 		Lineno = 0;
    466 	}
    467 	mvaddch(Lineno + Y_MSG_START, SCORE_X, '*');
    468 	lastline = Lineno;
    469 	do {
    470 		mvwaddstr(Msgwin, Lineno, 0, mp);
    471 		if ((len = strlen(mp)) > MSG_X) {
    472 			omp = mp;
    473 			for (mp = &mp[MSG_X - 1]; *mp != ' '; mp--)
    474 				continue;
    475 			while (*mp == ' ')
    476 				mp--;
    477 			mp++;
    478 			wmove(Msgwin, Lineno, mp - omp);
    479 			wclrtoeol(Msgwin);
    480 		}
    481 		if (++Lineno >= MSG_Y)
    482 			Lineno = 0;
    483 	} while (len > MSG_X);
    484 	wclrtoeol(Msgwin);
    485 	Mpos = len;
    486 	Newpos = 0;
    487 	wrefresh(Msgwin);
    488 	refresh();
    489 	wrefresh(Msgwin);
    490 }
    491 
    492 /*
    493  * do_wait:
    494  *	Wait for the user to type ' ' before doing anything else
    495  */
    496 void
    497 do_wait()
    498 {
    499 	static const char prompt[] = {'-', '-', 'M', 'o', 'r', 'e', '-', '-', '\0'};
    500 
    501 	if ((int)(Mpos + sizeof prompt) < MSG_X)
    502 		wmove(Msgwin, Lineno > 0 ? Lineno - 1 : MSG_Y - 1, Mpos);
    503 	else {
    504 		mvwaddch(Msgwin, Lineno, 0, ' ');
    505 		wclrtoeol(Msgwin);
    506 		if (++Lineno >= MSG_Y)
    507 			Lineno = 0;
    508 	}
    509 	waddstr(Msgwin, prompt);
    510 	wrefresh(Msgwin);
    511 	wait_for(' ');
    512 }
    513 
    514 /*
    515  * wait_for
    516  *	Sit around until the guy types the right key
    517  */
    518 void
    519 wait_for(ch)
    520 	int ch;
    521 {
    522 	char c;
    523 
    524 	if (ch == '\n')
    525 		while ((c = readchar()) != '\n')
    526 			continue;
    527 	else
    528 		while (readchar() != ch)
    529 			continue;
    530 }
    531 
    532 /*
    533  * readchar:
    534  *	Reads and returns a character, checking for gross input errors
    535  */
    536 int
    537 readchar()
    538 {
    539 	int cnt;
    540 	char c;
    541 
    542 over:
    543 	cnt = 0;
    544 	while (read(STDIN_FILENO, &c, sizeof(char)) <= 0)
    545 		if (cnt++ > 100) {	/* if we are getting infinite EOFs */
    546 			bye();		/* quit the game */
    547 			exit(1);
    548 		}
    549 	if (c == CTRL('L')) {
    550 		wrefresh(curscr);
    551 		goto over;
    552 	}
    553 	if (c == '\r')
    554 		return ('\n');
    555 	else
    556 		return (c);
    557 }
    558 
    559 /*
    560  * getline:
    561  *      Reads the next line up to '\n' or EOF.  Multiple spaces are
    562  *	compressed to one space; a space is inserted before a ','
    563  */
    564 char *
    565 getline()
    566 {
    567 	char *sp;
    568 	int c, oy, ox;
    569 	WINDOW *oscr;
    570 
    571 	oscr = stdscr;
    572 	stdscr = Msgwin;
    573 	getyx(stdscr, oy, ox);
    574 	refresh();
    575 	/* loop reading in the string, and put it in a temporary buffer */
    576 	for (sp = linebuf; (c = readchar()) != '\n'; clrtoeol(), refresh()) {
    577 		if (c == -1)
    578 			continue;
    579 		else
    580 			if (c == erasechar()) {	/* process erase character */
    581 				if (sp > linebuf) {
    582 					int i;
    583 
    584 					sp--;
    585 					for (i = strlen(unctrl(*sp)); i; i--)
    586 						addch('\b');
    587 				}
    588 				continue;
    589 			} else
    590 				if (c == killchar()) {	/* process kill
    591 							 * character */
    592 					sp = linebuf;
    593 					move(oy, ox);
    594 					continue;
    595 				} else
    596 					if (sp == linebuf && c == ' ')
    597 						continue;
    598 		if (sp >= &linebuf[LINESIZE - 1] || !(isprint(c) || c == ' '))
    599 			putchar(CTRL('G'));
    600 		else {
    601 			if (islower(c))
    602 				c = toupper(c);
    603 			*sp++ = c;
    604 			addstr(unctrl(c));
    605 			Mpos++;
    606 		}
    607 	}
    608 	*sp = '\0';
    609 	stdscr = oscr;
    610 	return (linebuf);
    611 }
    612 
    613 void
    614 rint(signo)
    615 	int signo __attribute__((__unused__));
    616 {
    617 	bye();
    618 	exit(1);
    619 }
    620 
    621 /*
    622  * bye:
    623  *	Leave the program, cleaning things up as we go.
    624  */
    625 void
    626 bye()
    627 {
    628 	signal(SIGINT, SIG_IGN);
    629 	mvcur(0, COLS - 1, LINES - 1, 0);
    630 	fflush(stdout);
    631 	endwin();
    632 	putchar('\n');
    633 }
    634