bcd/bcd.c

   1 /*      $NetBSD: bcd.c,v 1.6 1995/04/24 12:22:23 cgd 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 #ifndef lint
  40 static char copyright[] =
  41 "@(#) 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 static char sccsid[] = "@(#)bcd.c       8.2 (Berkeley) 3/20/94";
  47 #endif /* not lint */
  48
  49 /*
  50  * bcd --
  51  *
  52  * Read one line of standard input and produce something that looks like a
  53  * punch card.  An attempt to reimplement /usr/games/bcd.  All I looked at
  54  * was the man page.
  55  *
  56  * I couldn't find a BCD table handy so I wrote a shell script to deduce what
  57  * the patterns were that the old bcd was using for each possible 8-bit
  58  * character.  These are the results -- the low order 12 bits represent the
  59  * holes.  (A 1 bit is a hole.)  These may be wrong, but they match the old
  60  * program!
  61  *
  62  * Steve Hayman
  63  * sahayman@iuvax.cs.indiana.edu
  64  * 1989 11 30
  65  *
  66  *
  67  * I found an error in the table. The same error is found in the SunOS 4.1.1
  68  * version of bcd. It has apparently been around a long time. The error caused
  69  * 'Q' and 'R' to have the same punch code. I only noticed the error due to
  70  * someone pointing it out to me when the program was used to print a cover
  71  * for an APA!  The table was wrong in 4 places. The other error was masked
  72  * by the fact that the input is converted to upper case before lookup.
  73  *
  74  * Dyane Bruce
  75  * db@diana.ocunix.on.ca
  76  * Nov 5, 1993
  77  */
  78
  79 #include <sys/types.h>
  80
  81 #include <stdio.h>
  82 #include <string.h>
  83 #include <ctype.h>
  84
  85 u_short holes[256] = {
  86     0x0,         0x0,     0x0,     0x0,     0x0,     0x0,     0x0,     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,         0x206,   0x20a,   0x042,   0x442,   0x222,   0x800,   0x406,
  91     0x812,       0x412,   0x422,   0xa00,   0x242,   0x400,   0x842,   0x300,
  92     0x200,       0x100,   0x080,   0x040,   0x020,   0x010,   0x008,   0x004,
  93     0x002,       0x001,   0x012,   0x40a,   0x80a,   0x212,   0x00a,   0x006,
  94     0x022,       0x900,   0x880,   0x840,   0x820,   0x810,   0x808,   0x804,
  95     0x802,       0x801,   0x500,   0x480,   0x440,   0x420,   0x410,   0x408,
  96     0x404,       0x402,   0x401,   0x280,   0x240,   0x220,   0x210,   0x208,
  97     0x204,       0x202,   0x201,   0x082,   0x822,   0x600,   0x282,   0x30f,
  98     0x900,       0x880,   0x840,   0x820,   0x810,   0x808,   0x804,   0x802,
  99     0x801,       0x500,   0x480,   0x440,   0x420,   0x410,   0x408,   0x404,
 100     0x402,       0x401,   0x280,   0x240,   0x220,   0x210,   0x208,   0x204,
 101     0x202,       0x201,   0x082,   0x806,   0x822,   0x600,   0x282,   0x0,
 102     0x0,         0x0,     0x0,     0x0,     0x0,     0x0,     0x0,     0x0,
 103     0x0,         0x0,     0x0,     0x0,     0x0,     0x0,     0x0,     0x0,
 104     0x0,         0x0,     0x0,     0x0,     0x0,     0x0,     0x0,     0x0,
 105     0x0,         0x0,     0x0,     0x0,     0x0,     0x0,     0x0,     0x0,
 106     0x206,       0x20a,   0x042,   0x442,   0x222,   0x800,   0x406,   0x812,
 107     0x412,       0x422,   0xa00,   0x242,   0x400,   0x842,   0x300,   0x200,
 108     0x100,       0x080,   0x040,   0x020,   0x010,   0x008,   0x004,   0x002,
 109     0x001,       0x012,   0x40a,   0x80a,   0x212,   0x00a,   0x006,   0x022,
 110     0x900,       0x880,   0x840,   0x820,   0x810,   0x808,   0x804,   0x802,
 111     0x801,       0x500,   0x480,   0x440,   0x420,   0x410,   0x408,   0x404,
 112     0x402,       0x401,   0x280,   0x240,   0x220,   0x210,   0x208,   0x204,
 113     0x202,       0x201,   0x082,   0x806,   0x822,   0x600,   0x282,   0x30f,
 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,   0x0
 118 };
 119
 120 /*
 121  * i'th bit of w.
 122  */
 123 #define bit(w,i)        ((w)&(1<<(i)))
 124
 125 int
 126 main(argc, argv)
 127         int argc;
 128         char **argv;
 129 {
 130         char cardline[80];
 131
 132         /*
 133          * The original bcd prompts with a "%" when reading from stdin,
 134          * but this seems kind of silly.  So this one doesn't.
 135          */
 136
 137         if (argc > 1) {
 138                 while (--argc)
 139                         printcard(*++argv);
 140         } else
 141                 while (fgets(cardline, sizeof(cardline), stdin))
 142                         printcard(cardline);
 143         exit(0);
 144 }
 145
 146 #define COLUMNS 48
 147
 148 printcard(str)
 149         register char *str;
 150 {
 151         static char rowchars[] = "   123456789";
 152         register int i, row;
 153         register char *p;
 154         char *index();
 155
 156         /* ruthlessly remove newlines and truncate at 48 characters. */
 157         if ((p = index(str, '\n')))
 158                 *p = '\0';
 159
 160         if (strlen(str) > COLUMNS)
 161                 str[COLUMNS] = '\0';
 162
 163         /* make string upper case. */
 164         for (p = str; *p; ++p)
 165                 if (isascii(*p) && islower(*p))
 166                         *p = toupper(*p);
 167
 168          /* top of card */
 169         putchar(' ');
 170         for (i = 1; i <= COLUMNS; ++i)
 171                 putchar('_');
 172         putchar('\n');
 173
 174         /*
 175          * line of text.  Leave a blank if the character doesn't have
 176          * a hole pattern.
 177          */
 178         p = str;
 179         putchar('/');
 180         for (i = 1; *p; i++, p++)
 181                 if (holes[*p])
 182                         putchar(*p);
 183                 else
 184                         putchar(' ');
 185         while (i++ <= COLUMNS)
 186                 putchar(' ');
 187         putchar('|');
 188         putchar('\n');
 189
 190         /*
 191          * 12 rows of potential holes; output a ']', which looks kind of
 192          * like a hole, if the appropriate bit is set in the holes[] table.
 193          * The original bcd output a '[', a backspace, five control A's,
 194          * and then a ']'.  This seems a little excessive.
 195          */
 196         for (row = 0; row <= 11; ++row) {
 197                 putchar('|');
 198                 for (i = 0, p = str; *p; i++, p++) {
 199                         if (bit(holes[*p], 11 - row))
 200                                 putchar(']');
 201                         else
 202                                 putchar(rowchars[row]);
 203                 }
 204                 while (i++ < COLUMNS)
 205                         putchar(rowchars[row]);
 206                 putchar('|');
 207                 putchar('\n');
 208         }
 209
 210         /* bottom of card */
 211         putchar('|');
 212         for (i = 1; i <= COLUMNS; i++)
 213                 putchar('_');
 214         putchar('|');
 215         putchar('\n');
 216 }