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218 lines
7.4 KiB
C
218 lines
7.4 KiB
C
/*
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* Copyright (c) 1989, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* Steve Hayman of the Indiana University Computer Science Dept.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef lint
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static char copyright[] =
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"@(#) Copyright (c) 1989, 1993\n\
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The Regents of the University of California. All rights reserved.\n";
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#endif /* not lint */
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#ifndef lint
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static char sccsid[] = "@(#)bcd.c 8.2 (Berkeley) 3/20/94";
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#endif /* not lint */
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/*
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* bcd --
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*
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* Read one line of standard input and produce something that looks like a
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* punch card. An attempt to reimplement /usr/games/bcd. All I looked at
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* was the man page.
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*
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* I couldn't find a BCD table handy so I wrote a shell script to deduce what
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* the patterns were that the old bcd was using for each possible 8-bit
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* character. These are the results -- the low order 12 bits represent the
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* holes. (A 1 bit is a hole.) These may be wrong, but they match the old
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* program!
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*
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* Steve Hayman
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* sahayman@iuvax.cs.indiana.edu
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* 1989 11 30
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*
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*
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* I found an error in the table. The same error is found in the SunOS 4.1.1
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* version of bcd. It has apparently been around a long time. The error caused
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* 'Q' and 'R' to have the same punch code. I only noticed the error due to
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* someone pointing it out to me when the program was used to print a cover
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* for an APA! The table was wrong in 4 places. The other error was masked
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* by the fact that the input is converted to upper case before lookup.
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*
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* Dyane Bruce
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* db@diana.ocunix.on.ca
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* Nov 5, 1993
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*/
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#include <sys/types.h>
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#include <stdio.h>
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#include <ctype.h>
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u_short holes[256] = {
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0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
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0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
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0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
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0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
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0x0, 0x206, 0x20a, 0x042, 0x442, 0x222, 0x800, 0x406,
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0x812, 0x412, 0x422, 0xa00, 0x242, 0x400, 0x842, 0x300,
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0x200, 0x100, 0x080, 0x040, 0x020, 0x010, 0x008, 0x004,
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0x002, 0x001, 0x012, 0x40a, 0x80a, 0x212, 0x00a, 0x006,
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0x022, 0x900, 0x880, 0x840, 0x820, 0x810, 0x808, 0x804,
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0x802, 0x801, 0x500, 0x480, 0x440, 0x420, 0x410, 0x408,
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0x404, 0x402, 0x401, 0x280, 0x240, 0x220, 0x210, 0x208,
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0x204, 0x202, 0x201, 0x082, 0x822, 0x600, 0x282, 0x30f,
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0x900, 0x880, 0x840, 0x820, 0x810, 0x808, 0x804, 0x802,
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0x801, 0x500, 0x480, 0x440, 0x420, 0x410, 0x408, 0x404,
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0x402, 0x401, 0x280, 0x240, 0x220, 0x210, 0x208, 0x204,
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0x202, 0x201, 0x082, 0x806, 0x822, 0x600, 0x282, 0x0,
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0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
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0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
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0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
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0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
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0x206, 0x20a, 0x042, 0x442, 0x222, 0x800, 0x406, 0x812,
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0x412, 0x422, 0xa00, 0x242, 0x400, 0x842, 0x300, 0x200,
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0x100, 0x080, 0x040, 0x020, 0x010, 0x008, 0x004, 0x002,
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0x001, 0x012, 0x40a, 0x80a, 0x212, 0x00a, 0x006, 0x022,
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0x900, 0x880, 0x840, 0x820, 0x810, 0x808, 0x804, 0x802,
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0x801, 0x500, 0x480, 0x440, 0x420, 0x410, 0x408, 0x404,
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0x402, 0x401, 0x280, 0x240, 0x220, 0x210, 0x208, 0x204,
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0x202, 0x201, 0x082, 0x806, 0x822, 0x600, 0x282, 0x30f,
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0x900, 0x880, 0x840, 0x820, 0x810, 0x808, 0x804, 0x802,
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0x801, 0x500, 0x480, 0x440, 0x420, 0x410, 0x408, 0x404,
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0x402, 0x401, 0x280, 0x240, 0x220, 0x210, 0x208, 0x204,
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0x202, 0x201, 0x082, 0x806, 0x822, 0x600, 0x282, 0x0
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};
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/*
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* i'th bit of w.
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*/
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#define bit(w,i) ((w)&(1<<(i)))
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int
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main(argc, argv)
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int argc;
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char **argv;
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{
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char cardline[80];
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/*
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* The original bcd prompts with a "%" when reading from stdin,
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* but this seems kind of silly. So this one doesn't.
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*/
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/* revoke privs */
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setegid(getgid());
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setgid(getgid());
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if (argc > 1) {
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while (--argc)
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printcard(*++argv);
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} else
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while (fgets(cardline, sizeof(cardline), stdin))
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printcard(cardline);
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exit(0);
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}
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#define COLUMNS 48
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printcard(str)
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register char *str;
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{
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static char rowchars[] = " 123456789";
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register int i, row;
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register char *p;
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char *index();
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/* ruthlessly remove newlines and truncate at 48 characters. */
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if ((p = index(str, '\n')))
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*p = '\0';
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if (strlen(str) > COLUMNS)
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str[COLUMNS] = '\0';
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/* make string upper case. */
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for (p = str; *p; ++p)
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if (isascii(*p) && islower(*p))
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*p = toupper(*p);
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/* top of card */
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putchar(' ');
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for (i = 1; i <= COLUMNS; ++i)
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putchar('_');
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putchar('\n');
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/*
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* line of text. Leave a blank if the character doesn't have
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* a hole pattern.
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*/
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p = str;
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putchar('/');
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for (i = 1; *p; i++, p++)
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if (holes[*p])
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putchar(*p);
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else
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putchar(' ');
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while (i++ <= COLUMNS)
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putchar(' ');
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putchar('|');
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putchar('\n');
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/*
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* 12 rows of potential holes; output a ']', which looks kind of
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* like a hole, if the appropriate bit is set in the holes[] table.
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* The original bcd output a '[', a backspace, five control A's,
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* and then a ']'. This seems a little excessive.
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*/
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for (row = 0; row <= 11; ++row) {
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putchar('|');
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for (i = 0, p = str; *p; i++, p++) {
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if (bit(holes[*p], 11 - row))
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putchar(']');
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else
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putchar(rowchars[row]);
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}
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while (i++ < COLUMNS)
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putchar(rowchars[row]);
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putchar('|');
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putchar('\n');
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}
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/* bottom of card */
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putchar('|');
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for (i = 1; i <= COLUMNS; i++)
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putchar('_');
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putchar('|');
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putchar('\n');
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}
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