xref: /netbsd-src/games/bcd/bcd.c (revision ae1bfcddc410612bc8c58b807e1830becb69a24c)
1 /*
2  * Copyright (c) 1989 The Regents of the University of California.
3  * All rights reserved.
4  *
5  * This code is derived from software contributed to Berkeley by
6  * Steve Hayman of the Indiana University Computer Science Dept..
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 
37 #ifndef lint
38 char copyright[] =
39 "@(#) Copyright (c) 1989 The Regents of the University of California.\n\
40  All rights reserved.\n";
41 #endif /* not lint */
42 
43 #ifndef lint
44 /*static char sccsid[] = "from: @(#)bcd.c	4.4 (Berkeley) 6/1/90";*/
45 static char rcsid[] = "$Id: bcd.c,v 1.4 1993/11/05 20:22:35 jtc Exp $";
46 #endif /* not lint */
47 
48 /*
49  * bcd --
50  *
51  * Read one line of standard input and produce something that looks like a
52  * punch card.  An attempt to reimplement /usr/games/bcd.  All I looked at
53  * was the man page.
54  *
55  * I couldn't find a BCD table handy so I wrote a shell script to deduce what
56  * the patterns were that the old bcd was using for each possible 8-bit
57  * character.  These are the results -- the low order 12 bits represent the
58  * holes.  (A 1 bit is a hole.)  These may be wrong, but they match the old
59  * program!
60  *
61  * Steve Hayman
62  * sahayman@iuvax.cs.indiana.edu
63  * 1989 11 30
64  */
65 
66 #include <sys/types.h>
67 #include <stdio.h>
68 #include <ctype.h>
69 
70 u_short holes[256] = {
71     0x0,	 0x0,	  0x0,	   0x0,	    0x0,     0x0,     0x0,     0x0,
72     0x0,	 0x0,	  0x0,	   0x0,	    0x0,     0x0,     0x0,     0x0,
73     0x0,	 0x0,	  0x0,	   0x0,	    0x0,     0x0,     0x0,     0x0,
74     0x0,	 0x0,	  0x0,	   0x0,	    0x0,     0x0,     0x0,     0x0,
75     0x0,	 0x206,	  0x20a,   0x042,   0x442,   0x222,   0x800,   0x406,
76     0x812,	 0x412,	  0x422,   0xa00,   0x242,   0x400,   0x842,   0x300,
77     0x200,	 0x100,	  0x080,   0x040,   0x020,   0x010,   0x008,   0x004,
78     0x002,	 0x001,	  0x012,   0x40a,   0x80a,   0x212,   0x00a,   0x006,
79     0x022,	 0x900,	  0x880,   0x840,   0x820,   0x810,   0x808,   0x804,
80     0x802,	 0x801,	  0x500,   0x480,   0x440,   0x420,   0x410,   0x408,
81     0x404,	 0x402,	  0x401,   0x280,   0x240,   0x220,   0x210,   0x208,
82     0x204,	 0x202,	  0x201,   0x082,   0x822,   0x600,   0x282,   0x30f,
83     0x900,	 0x880,	  0x840,   0x820,   0x810,   0x808,   0x804,   0x802,
84     0x801,	 0x500,	  0x480,   0x440,   0x420,   0x410,   0x408,   0x404,
85     0x402,	 0x401,	  0x280,   0x240,   0x220,   0x210,   0x208,   0x204,
86     0x202,	 0x201,	  0x082,   0x806,   0x822,   0x600,   0x282,   0x0,
87     0x0,	 0x0,	  0x0,	   0x0,	    0x0,     0x0,     0x0,     0x0,
88     0x0,	 0x0,	  0x0,	   0x0,	    0x0,     0x0,     0x0,     0x0,
89     0x0,	 0x0,	  0x0,	   0x0,	    0x0,     0x0,     0x0,     0x0,
90     0x0,	 0x0,	  0x0,	   0x0,	    0x0,     0x0,     0x0,     0x0,
91     0x206,	 0x20a,	  0x042,   0x442,   0x222,   0x800,   0x406,   0x812,
92     0x412,	 0x422,	  0xa00,   0x242,   0x400,   0x842,   0x300,   0x200,
93     0x100,	 0x080,	  0x040,   0x020,   0x010,   0x008,   0x004,   0x002,
94     0x001,	 0x012,	  0x40a,   0x80a,   0x212,   0x00a,   0x006,   0x022,
95     0x900,	 0x880,	  0x840,   0x820,   0x810,   0x808,   0x804,   0x802,
96     0x801,	 0x500,	  0x480,   0x440,   0x420,   0x410,   0x408,   0x404,
97     0x402,	 0x401,	  0x280,   0x240,   0x220,   0x210,   0x208,   0x204,
98     0x202,	 0x201,	  0x082,   0x806,   0x822,   0x600,   0x282,   0x30f,
99     0x900,	 0x880,	  0x840,   0x820,   0x810,   0x808,   0x804,   0x802,
100     0x801,	 0x500,	  0x480,   0x440,   0x420,   0x410,   0x408,   0x404,
101     0x402,	 0x401,	  0x280,   0x240,   0x220,   0x210,   0x208,   0x204,
102     0x202,	 0x201,	  0x082,   0x806,   0x822,   0x600,   0x282,   0x0
103 };
104 
105 /*
106  * i'th bit of w.
107  */
108 #define	bit(w,i)	((w)&(1<<(i)))
109 
110 main(argc, argv)
111 	int argc;
112 	char **argv;
113 {
114 	char cardline[80];
115 
116 	/*
117 	 * The original bcd prompts with a "%" when reading from stdin,
118 	 * but this seems kind of silly.  So this one doesn't.
119 	 */
120 
121 	if (argc > 1) {
122 		while (--argc)
123 			printcard(*++argv);
124 	} else
125 		while (fgets(cardline, sizeof(cardline), stdin))
126 			printcard(cardline);
127 	exit(0);
128 }
129 
130 #define	COLUMNS	48
131 
132 printcard(str)
133 	register char *str;
134 {
135 	static char rowchars[] = "   123456789";
136 	register int i, row;
137 	register char *p;
138 	char *index();
139 
140 	/* ruthlessly remove newlines and truncate at 48 characters. */
141 	if ((p = index(str, '\n')))
142 		*p = '\0';
143 
144 	if (strlen(str) > COLUMNS)
145 		str[COLUMNS] = '\0';
146 
147 	/* make string upper case. */
148 	for (p = str; *p; ++p)
149 		if (isascii(*p) && islower(*p))
150 			*p = toupper(*p);
151 
152 	 /* top of card */
153 	putchar(' ');
154 	for (i = 1; i <= COLUMNS; ++i)
155 		putchar('_');
156 	putchar('\n');
157 
158 	/*
159 	 * line of text.  Leave a blank if the character doesn't have
160 	 * a hole pattern.
161 	 */
162 	p = str;
163 	putchar('/');
164 	for (i = 1; *p; i++, p++)
165 		if (holes[*p])
166 			putchar(*p);
167 		else
168 			putchar(' ');
169 	while (i++ <= COLUMNS)
170 		putchar(' ');
171 	putchar('|');
172 	putchar('\n');
173 
174 	/*
175 	 * 12 rows of potential holes; output a ']', which looks kind of
176 	 * like a hole, if the appropriate bit is set in the holes[] table.
177 	 * The original bcd output a '[', a backspace, five control A's,
178 	 * and then a ']'.  This seems a little excessive.
179 	 */
180 	for (row = 0; row <= 11; ++row) {
181 		putchar('|');
182 		for (i = 0, p = str; *p; i++, p++) {
183 			if (bit(holes[*p], 11 - row))
184 				putchar(']');
185 			else
186 				putchar(rowchars[row]);
187 		}
188 		while (i++ < COLUMNS)
189 			putchar(rowchars[row]);
190 		putchar('|');
191 		putchar('\n');
192 	}
193 
194 	/* bottom of card */
195 	putchar('|');
196 	for (i = 1; i <= COLUMNS; i++)
197 		putchar('_');
198 	putchar('|');
199 	putchar('\n');
200 }
201