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/* $OpenBSD: tr.c,v 1.19 2015/10/09 01:37:09 deraadt Exp $ */ |
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/* $NetBSD: tr.c,v 1.5 1995/08/31 22:13:48 jtc Exp $ */ |
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/* |
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* Copyright (c) 1988, 1993 |
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* The Regents of the University of California. All rights reserved. |
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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. 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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#include <sys/types.h> |
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#include <stdio.h> |
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#include <stdlib.h> |
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#include <string.h> |
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#include <unistd.h> |
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#include <err.h> |
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#include "extern.h" |
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static int string1[NCHARS] = { |
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0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* ASCII */ |
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0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, |
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0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, |
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0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, |
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0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, |
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0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, |
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0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, |
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0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, |
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0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, |
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0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, |
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0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, |
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0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, |
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0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, |
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0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, |
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0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, |
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0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, |
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0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, |
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0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f, |
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0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, |
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0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f, |
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0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7, |
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0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf, |
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0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7, |
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0xb8, 0xb9, 0xba, 0xbb, 0xbc, 0xbd, 0xbe, 0xbf, |
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0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, |
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0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, |
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0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7, |
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0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0xde, 0xdf, |
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0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, |
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0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef, |
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0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, |
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0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff, |
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}, string2[NCHARS]; |
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STR s1 = { STRING1, NORMAL, 0, OOBCH, { 0, OOBCH }, NULL, NULL }; |
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STR s2 = { STRING2, NORMAL, 0, OOBCH, { 0, OOBCH }, NULL, NULL }; |
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static void setup(int *, char *, STR *, int); |
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static void usage(void); |
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int |
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main(int argc, char *argv[]) |
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{ |
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int ch, cnt, lastch, *p; |
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int cflag, dflag, sflag, isstring2; |
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✗✓ |
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if (pledge("stdio wpath cpath rpath", NULL) == -1) |
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err(1, "pledge"); |
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cflag = dflag = sflag = 0; |
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✗✓ |
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while ((ch = getopt(argc, argv, "Ccds")) != -1) |
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switch(ch) { |
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case 'C': |
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case 'c': |
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cflag = 1; |
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break; |
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case 'd': |
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dflag = 1; |
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break; |
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case 's': |
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sflag = 1; |
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break; |
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case '?': |
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default: |
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usage(); |
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} |
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argc -= optind; |
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argv += optind; |
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✗✗✓ |
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switch(argc) { |
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case 0: |
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default: |
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usage(); |
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/* NOTREACHED */ |
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case 1: |
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isstring2 = 0; |
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break; |
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case 2: |
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isstring2 = 1; |
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break; |
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} |
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/* |
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* tr -ds [-Cc] string1 string2 |
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* Delete all characters (or complemented characters) in string1. |
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* Squeeze all characters in string2. |
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*/ |
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✗✓ |
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if (dflag && sflag) { |
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if (!isstring2) |
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usage(); |
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setup(string1, argv[0], &s1, cflag); |
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setup(string2, argv[1], &s2, 0); |
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for (lastch = OOBCH; (ch = getchar()) != EOF;) |
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if (!string1[ch] && (!string2[ch] || lastch != ch)) { |
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lastch = ch; |
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(void)putchar(ch); |
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} |
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exit(0); |
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} |
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/* |
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* tr -d [-Cc] string1 |
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* Delete all characters (or complemented characters) in string1. |
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*/ |
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✗✓ |
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if (dflag) { |
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if (isstring2) |
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usage(); |
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setup(string1, argv[0], &s1, cflag); |
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while ((ch = getchar()) != EOF) |
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if (!string1[ch]) |
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(void)putchar(ch); |
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exit(0); |
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} |
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/* |
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* tr -s [-Cc] string1 |
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* Squeeze all characters (or complemented characters) in string1. |
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*/ |
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✗✓ |
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if (sflag && !isstring2) { |
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setup(string1, argv[0], &s1, cflag); |
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for (lastch = OOBCH; (ch = getchar()) != EOF;) |
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if (!string1[ch] || lastch != ch) { |
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lastch = ch; |
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(void)putchar(ch); |
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} |
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exit(0); |
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} |
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/* |
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* tr [-Ccs] string1 string2 |
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* Replace all characters (or complemented characters) in string1 with |
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* the character in the same position in string2. If the -s option is |
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* specified, squeeze all the characters in string2. |
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*/ |
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✗✓ |
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if (!isstring2) |
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usage(); |
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s1.str = (unsigned char *)argv[0]; |
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s2.str = (unsigned char *)argv[1]; |
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✗✓ |
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if (cflag) |
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for (cnt = NCHARS, p = string1; cnt--;) |
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*p++ = OOBCH; |
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✗✓ |
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if (!next(&s2)) |
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errx(1, "empty string2"); |
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/* If string2 runs out of characters, use the last one specified. */ |
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ch = s2.lastch; |
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✗✓ |
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if (sflag) |
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while (next(&s1)) { |
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string1[s1.lastch] = ch = s2.lastch; |
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string2[ch] = 1; |
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(void)next(&s2); |
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} |
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else |
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✓✓ |
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while (next(&s1)) { |
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string1[s1.lastch] = ch = s2.lastch; |
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(void)next(&s2); |
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} |
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✗✓ |
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if (cflag) |
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for (cnt = 0, p = string1; cnt < NCHARS; ++p, ++cnt) |
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*p = *p == OOBCH ? ch : cnt; |
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✗✓ |
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if (sflag) |
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for (lastch = OOBCH; (ch = getchar()) != EOF;) { |
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ch = string1[ch]; |
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if (!string2[ch] || lastch != ch) { |
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lastch = ch; |
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(void)putchar(ch); |
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} |
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} |
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else |
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✓✗✓✓ ✓✓ |
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while ((ch = getchar()) != EOF) |
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✓✗ |
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(void)putchar(string1[ch]); |
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exit (0); |
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} |
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static void |
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setup(int *string, char *arg, STR *str, int cflag) |
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{ |
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int cnt, *p; |
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str->str = (unsigned char *)arg; |
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bzero(string, NCHARS * sizeof(int)); |
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while (next(str)) |
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string[str->lastch] = 1; |
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if (cflag) |
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for (p = string, cnt = NCHARS; cnt--; ++p) |
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*p = !*p; |
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} |
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static void |
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usage(void) |
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{ |
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fprintf(stderr, |
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"usage: tr [-Ccs] string1 string2\n" |
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" tr [-Cc] -d string1\n" |
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" tr [-Cc] -s string1\n" |
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" tr [-Cc] -ds string1 string2\n"); |
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exit(1); |
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} |