2 * Copyright (c) 1989, 1993
3 * The Regents of the University of California. All rights reserved.
5 * This code is derived from software contributed to Berkeley by
6 * Steve Hayman of the Indiana University Computer Science Dept.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
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. Neither the name of the University nor the names of its contributors
17 * may be used to endorse or promote products derived from this software
18 * without specific prior written permission.
20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 * @(#) Copyright (c) 1989, 1993 The Regents of the University of California. All rights reserved.
33 * @(#)bcd.c 8.2 (Berkeley) 3/20/94
34 * $FreeBSD: src/games/bcd/bcd.c,v 1.8 1999/11/30 03:48:41 billf Exp $
35 * $DragonFly: src/games/bcd/bcd.c,v 1.3 2005/08/03 13:26:19 eirikn Exp $
41 * Read one line of standard input and produce something that looks like a
42 * punch card. An attempt to reimplement /usr/games/bcd. All I looked at
45 * I couldn't find a BCD table handy so I wrote a shell script to deduce what
46 * the patterns were that the old bcd was using for each possible 8-bit
47 * character. These are the results -- the low order 12 bits represent the
48 * holes. (A 1 bit is a hole.) These may be wrong, but they match the old
52 * sahayman@iuvax.cs.indiana.edu
56 * I found an error in the table. The same error is found in the SunOS 4.1.1
57 * version of bcd. It has apparently been around a long time. The error caused
58 * 'Q' and 'R' to have the same punch code. I only noticed the error due to
59 * someone pointing it out to me when the program was used to print a cover
60 * for an APA! The table was wrong in 4 places. The other error was masked
61 * by the fact that the input is converted to upper case before lookup.
64 * db@diana.ocunix.on.ca
68 #include <sys/types.h>
75 u_short holes[256] = {
76 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
77 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
78 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
79 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
80 0x0, 0x206, 0x20a, 0x042, 0x442, 0x222, 0x800, 0x406,
81 0x812, 0x412, 0x422, 0xa00, 0x242, 0x400, 0x842, 0x300,
82 0x200, 0x100, 0x080, 0x040, 0x020, 0x010, 0x008, 0x004,
83 0x002, 0x001, 0x012, 0x40a, 0x80a, 0x212, 0x00a, 0x006,
84 0x022, 0x900, 0x880, 0x840, 0x820, 0x810, 0x808, 0x804,
85 0x802, 0x801, 0x500, 0x480, 0x440, 0x420, 0x410, 0x408,
86 0x404, 0x402, 0x401, 0x280, 0x240, 0x220, 0x210, 0x208,
87 0x204, 0x202, 0x201, 0x082, 0x822, 0x600, 0x282, 0x30f,
88 0x900, 0x880, 0x840, 0x820, 0x810, 0x808, 0x804, 0x802,
89 0x801, 0x500, 0x480, 0x440, 0x420, 0x410, 0x408, 0x404,
90 0x402, 0x401, 0x280, 0x240, 0x220, 0x210, 0x208, 0x204,
91 0x202, 0x201, 0x082, 0x806, 0x822, 0x600, 0x282, 0x0,
92 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
93 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
94 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
95 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
96 0x206, 0x20a, 0x042, 0x442, 0x222, 0x800, 0x406, 0x812,
97 0x412, 0x422, 0xa00, 0x242, 0x400, 0x842, 0x300, 0x200,
98 0x100, 0x080, 0x040, 0x020, 0x010, 0x008, 0x004, 0x002,
99 0x001, 0x012, 0x40a, 0x80a, 0x212, 0x00a, 0x006, 0x022,
100 0x900, 0x880, 0x840, 0x820, 0x810, 0x808, 0x804, 0x802,
101 0x801, 0x500, 0x480, 0x440, 0x420, 0x410, 0x408, 0x404,
102 0x402, 0x401, 0x280, 0x240, 0x220, 0x210, 0x208, 0x204,
103 0x202, 0x201, 0x082, 0x806, 0x822, 0x600, 0x282, 0x30f,
104 0x900, 0x880, 0x840, 0x820, 0x810, 0x808, 0x804, 0x802,
105 0x801, 0x500, 0x480, 0x440, 0x420, 0x410, 0x408, 0x404,
106 0x402, 0x401, 0x280, 0x240, 0x220, 0x210, 0x208, 0x204,
107 0x202, 0x201, 0x082, 0x806, 0x822, 0x600, 0x282, 0x0
113 #define bit(w,i) ((w)&(1<<(i)))
115 static void printcard(char *);
118 main(int argc, char **argv)
122 /* revoke setgid privileges */
126 * The original bcd prompts with a "%" when reading from stdin,
127 * but this seems kind of silly. So this one doesn't.
134 while (fgets(cardline, sizeof(cardline), stdin))
144 static char rowchars[] = " 123456789";
148 /* ruthlessly remove newlines and truncate at 48 characters. */
149 if ((p = index(str, '\n')))
152 if (strlen(str) > COLUMNS)
155 /* make string upper case. */
156 for (p = str; *p; ++p)
157 if (isascii(*p) && islower(*p))
162 for (i = 1; i <= COLUMNS; ++i)
167 * line of text. Leave a blank if the character doesn't have
172 for (i = 1; *p; i++, p++)
177 while (i++ <= COLUMNS)
183 * 12 rows of potential holes; output a ']', which looks kind of
184 * like a hole, if the appropriate bit is set in the holes[] table.
185 * The original bcd output a '[', a backspace, five control A's,
186 * and then a ']'. This seems a little excessive.
188 for (row = 0; row <= 11; ++row) {
190 for (i = 0, p = str; *p; i++, p++) {
191 if (bit(holes[(int)*p], 11 - row))
194 putchar(rowchars[row]);
196 while (i++ < COLUMNS)
197 putchar(rowchars[row]);
204 for (i = 1; i <= COLUMNS; i++)