bcd/bcd.c

   1 /*      $NetBSD: bcd.c,v 1.7 1997/10/10 09:54:18 lukem Exp $    */
   2
   3 /*
   4  * Copyright (c) 1989, 1993
   5  *      The Regents of the University of California.  All rights reserved.
   6  *
   7  * This code is derived from software contributed to Berkeley by
   8  * Steve Hayman of the Indiana University Computer Science Dept.
   9  *
  10  * Redistribution and use in source and binary forms, with or without
  11  * modification, are permitted provided that the following conditions
  12  * are met:
  13  * 1. Redistributions of source code must retain the above copyright
  14  *    notice, this list of conditions and the following disclaimer.
  15  * 2. Redistributions in binary form must reproduce the above copyright
  16  *    notice, this list of conditions and the following disclaimer in the
  17  *    documentation and/or other materials provided with the distribution.
  18  * 3. All advertising materials mentioning features or use of this software
  19  *    must display the following acknowledgement:
  20  *      This product includes software developed by the University of
  21  *      California, Berkeley and its contributors.
  22  * 4. Neither the name of the University nor the names of its contributors
  23  *    may be used to endorse or promote products derived from this software
  24  *    without specific prior written permission.
  25  *
  26  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  27  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  28  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  29  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  30  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  31  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  32  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  33  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  34  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  35  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  36  * SUCH DAMAGE.
  37  */
  38
  39 #include <sys/cdefs.h>
  40 #ifndef lint
  41 __COPYRIGHT("@(#) Copyright (c) 1989, 1993\n\
  42         The Regents of the University of California.  All rights reserved.\n");
  43 #endif /* not lint */
  44
  45 #ifndef lint
  46 #if 0
  47 static char sccsid[] = "@(#)bcd.c       8.2 (Berkeley) 3/20/94";
  48 #else
  49 __RCSID("$NetBSD: bcd.c,v 1.7 1997/10/10 09:54:18 lukem Exp $");
  50 #endif
  51 #endif /* not lint */
  52
  53 /*
  54  * bcd --
  55  *
  56  * Read one line of standard input and produce something that looks like a
  57  * punch card.  An attempt to reimplement /usr/games/bcd.  All I looked at
  58  * was the man page.
  59  *
  60  * I couldn't find a BCD table handy so I wrote a shell script to deduce what
  61  * the patterns were that the old bcd was using for each possible 8-bit
  62  * character.  These are the results -- the low order 12 bits represent the
  63  * holes.  (A 1 bit is a hole.)  These may be wrong, but they match the old
  64  * program!
  65  *
  66  * Steve Hayman
  67  * sahayman@iuvax.cs.indiana.edu
  68  * 1989 11 30
  69  *
  70  *
  71  * I found an error in the table. The same error is found in the SunOS 4.1.1
  72  * version of bcd. It has apparently been around a long time. The error caused
  73  * 'Q' and 'R' to have the same punch code. I only noticed the error due to
  74  * someone pointing it out to me when the program was used to print a cover
  75  * for an APA!  The table was wrong in 4 places. The other error was masked
  76  * by the fact that the input is converted to upper case before lookup.
  77  *
  78  * Dyane Bruce
  79  * db@diana.ocunix.on.ca
  80  * Nov 5, 1993
  81  */
  82
  83 #include <sys/types.h>
  84
  85 #include <stdio.h>
  86 #include <string.h>
  87 #include <ctype.h>
  88
  89 u_short holes[256] = {
  90     0x0,         0x0,     0x0,     0x0,     0x0,     0x0,     0x0,     0x0,
  91     0x0,         0x0,     0x0,     0x0,     0x0,     0x0,     0x0,     0x0,
  92     0x0,         0x0,     0x0,     0x0,     0x0,     0x0,     0x0,     0x0,
  93     0x0,         0x0,     0x0,     0x0,     0x0,     0x0,     0x0,     0x0,
  94     0x0,         0x206,   0x20a,   0x042,   0x442,   0x222,   0x800,   0x406,
  95     0x812,       0x412,   0x422,   0xa00,   0x242,   0x400,   0x842,   0x300,
  96     0x200,       0x100,   0x080,   0x040,   0x020,   0x010,   0x008,   0x004,
  97     0x002,       0x001,   0x012,   0x40a,   0x80a,   0x212,   0x00a,   0x006,
  98     0x022,       0x900,   0x880,   0x840,   0x820,   0x810,   0x808,   0x804,
  99     0x802,       0x801,   0x500,   0x480,   0x440,   0x420,   0x410,   0x408,
 100     0x404,       0x402,   0x401,   0x280,   0x240,   0x220,   0x210,   0x208,
 101     0x204,       0x202,   0x201,   0x082,   0x822,   0x600,   0x282,   0x30f,
 102     0x900,       0x880,   0x840,   0x820,   0x810,   0x808,   0x804,   0x802,
 103     0x801,       0x500,   0x480,   0x440,   0x420,   0x410,   0x408,   0x404,
 104     0x402,       0x401,   0x280,   0x240,   0x220,   0x210,   0x208,   0x204,
 105     0x202,       0x201,   0x082,   0x806,   0x822,   0x600,   0x282,   0x0,
 106     0x0,         0x0,     0x0,     0x0,     0x0,     0x0,     0x0,     0x0,
 107     0x0,         0x0,     0x0,     0x0,     0x0,     0x0,     0x0,     0x0,
 108     0x0,         0x0,     0x0,     0x0,     0x0,     0x0,     0x0,     0x0,
 109     0x0,         0x0,     0x0,     0x0,     0x0,     0x0,     0x0,     0x0,
 110     0x206,       0x20a,   0x042,   0x442,   0x222,   0x800,   0x406,   0x812,
 111     0x412,       0x422,   0xa00,   0x242,   0x400,   0x842,   0x300,   0x200,
 112     0x100,       0x080,   0x040,   0x020,   0x010,   0x008,   0x004,   0x002,
 113     0x001,       0x012,   0x40a,   0x80a,   0x212,   0x00a,   0x006,   0x022,
 114     0x900,       0x880,   0x840,   0x820,   0x810,   0x808,   0x804,   0x802,
 115     0x801,       0x500,   0x480,   0x440,   0x420,   0x410,   0x408,   0x404,
 116     0x402,       0x401,   0x280,   0x240,   0x220,   0x210,   0x208,   0x204,
 117     0x202,       0x201,   0x082,   0x806,   0x822,   0x600,   0x282,   0x30f,
 118     0x900,       0x880,   0x840,   0x820,   0x810,   0x808,   0x804,   0x802,
 119     0x801,       0x500,   0x480,   0x440,   0x420,   0x410,   0x408,   0x404,
 120     0x402,       0x401,   0x280,   0x240,   0x220,   0x210,   0x208,   0x204,
 121     0x202,       0x201,   0x082,   0x806,   0x822,   0x600,   0x282,   0x0
 122 };
 123
 124 /*
 125  * i'th bit of w.
 126  */
 127 #define bit(w,i)        ((w)&(1<<(i)))
 128
 129 int     main __P((int, char *[]));
 130 void    printcard __P((char *));
 131
 132 int
 133 main(argc, argv)
 134         int argc;
 135         char **argv;
 136 {
 137         char cardline[80];
 138
 139         /*
 140          * The original bcd prompts with a "%" when reading from stdin,
 141          * but this seems kind of silly.  So this one doesn't.
 142          */
 143
 144         if (argc > 1) {
 145                 while (--argc)
 146                         printcard(*++argv);
 147         } else
 148                 while (fgets(cardline, sizeof(cardline), stdin))
 149                         printcard(cardline);
 150         exit(0);
 151 }
 152
 153 #define COLUMNS 48
 154
 155 void
 156 printcard(str)
 157         char *str;
 158 {
 159         static char rowchars[] = "   123456789";
 160         int i, row;
 161         char *p;
 162
 163         /* ruthlessly remove newlines and truncate at 48 characters. */
 164         if ((p = strchr(str, '\n')))
 165                 *p = '\0';
 166
 167         if (strlen(str) > COLUMNS)
 168                 str[COLUMNS] = '\0';
 169
 170         /* make string upper case. */
 171         for (p = str; *p; ++p)
 172                 if (isascii(*p) && islower(*p))
 173                         *p = toupper(*p);
 174
 175          /* top of card */
 176         putchar(' ');
 177         for (i = 1; i <= COLUMNS; ++i)
 178                 putchar('_');
 179         putchar('\n');
 180
 181         /*
 182          * line of text.  Leave a blank if the character doesn't have
 183          * a hole pattern.
 184          */
 185         p = str;
 186         putchar('/');
 187         for (i = 1; *p; i++, p++)
 188                 if (holes[(int)*p])
 189                         putchar(*p);
 190                 else
 191                         putchar(' ');
 192         while (i++ <= COLUMNS)
 193                 putchar(' ');
 194         putchar('|');
 195         putchar('\n');
 196
 197         /*
 198          * 12 rows of potential holes; output a ']', which looks kind of
 199          * like a hole, if the appropriate bit is set in the holes[] table.
 200          * The original bcd output a '[', a backspace, five control A's,
 201          * and then a ']'.  This seems a little excessive.
 202          */
 203         for (row = 0; row <= 11; ++row) {
 204                 putchar('|');
 205                 for (i = 0, p = str; *p; i++, p++) {
 206                         if (bit(holes[(int)*p], 11 - row))
 207                                 putchar(']');
 208                         else
 209                                 putchar(rowchars[row]);
 210                 }
 211                 while (i++ < COLUMNS)
 212                         putchar(rowchars[row]);
 213                 putchar('|');
 214                 putchar('\n');
 215         }
 216
 217         /* bottom of card */
 218         putchar('|');
 219         for (i = 1; i <= COLUMNS; i++)
 220                 putchar('_');
 221         putchar('|');
 222         putchar('\n');
 223 }