/* $OpenBSD: tr.c,v 1.22 2022/12/04 23:50:49 cheloha Exp $ */ /* $NetBSD: tr.c,v 1.5 1995/08/31 22:13:48 jtc Exp $ */ /* * Copyright (c) 1988, 1993 * The Regents of the University of California. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #include #include #include #include #include #include #include "extern.h" int delete[NCHARS], squeeze[NCHARS]; int translate[NCHARS] = { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* ASCII */ 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, 0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, 0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, 0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, 0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, 0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, 0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f, 0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, 0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f, 0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7, 0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf, 0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7, 0xb8, 0xb9, 0xba, 0xbb, 0xbc, 0xbd, 0xbe, 0xbf, 0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, 0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, 0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7, 0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0xde, 0xdf, 0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, 0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef, 0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, 0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff, }; STR s1 = { STRING1, NORMAL, 0, OOBCH, { 0, OOBCH }, NULL, NULL }; STR s2 = { STRING2, NORMAL, 0, OOBCH, { 0, OOBCH }, NULL, NULL }; static void setup(int *, char *, STR *, int); static void usage(void); int main(int argc, char *argv[]) { int ch, cnt, lastch, *p; int cflag, dflag, sflag; if (pledge("stdio", NULL) == -1) err(1, "pledge"); cflag = dflag = sflag = 0; while ((ch = getopt(argc, argv, "Ccds")) != -1) switch(ch) { case 'C': case 'c': cflag = 1; break; case 'd': dflag = 1; break; case 's': sflag = 1; break; default: usage(); } argc -= optind; argv += optind; if (argc < 1 || argc > 2) usage(); /* * tr -ds [-Cc] string1 string2 * Delete all characters (or complemented characters) in string1. * Squeeze all characters in string2. */ if (dflag && sflag) { if (argc != 2) usage(); setup(delete, argv[0], &s1, cflag); setup(squeeze, argv[1], &s2, 0); for (lastch = OOBCH; (ch = getchar()) != EOF;) if (!delete[ch] && (!squeeze[ch] || lastch != ch)) { lastch = ch; (void)putchar(ch); } exit(0); } /* * tr -d [-Cc] string1 * Delete all characters (or complemented characters) in string1. */ if (dflag) { if (argc != 1) usage(); setup(delete, argv[0], &s1, cflag); while ((ch = getchar()) != EOF) if (!delete[ch]) (void)putchar(ch); exit(0); } /* * tr -s [-Cc] string1 * Squeeze all characters (or complemented characters) in string1. */ if (sflag && argc == 1) { setup(squeeze, argv[0], &s1, cflag); for (lastch = OOBCH; (ch = getchar()) != EOF;) if (!squeeze[ch] || lastch != ch) { lastch = ch; (void)putchar(ch); } exit(0); } /* * tr [-Ccs] string1 string2 * Replace all characters (or complemented characters) in string1 with * the character in the same position in string2. If the -s option is * specified, squeeze all the characters in string2. */ if (argc != 2) usage(); s1.str = (unsigned char *)argv[0]; s2.str = (unsigned char *)argv[1]; if (cflag) for (cnt = NCHARS, p = translate; cnt--;) *p++ = OOBCH; if (!next(&s2)) errx(1, "empty string2"); /* If string2 runs out of characters, use the last one specified. */ ch = s2.lastch; if (sflag) while (next(&s1)) { translate[s1.lastch] = ch = s2.lastch; squeeze[ch] = 1; (void)next(&s2); } else while (next(&s1)) { translate[s1.lastch] = ch = s2.lastch; (void)next(&s2); } if (cflag) for (cnt = 0, p = translate; cnt < NCHARS; ++p, ++cnt) *p = *p == OOBCH ? ch : cnt; if (sflag) for (lastch = OOBCH; (ch = getchar()) != EOF;) { ch = translate[ch]; if (!squeeze[ch] || lastch != ch) { lastch = ch; (void)putchar(ch); } } else while ((ch = getchar()) != EOF) (void)putchar(translate[ch]); exit (0); } static void setup(int *table, char *arg, STR *str, int cflag) { int cnt, *p; str->str = (unsigned char *)arg; bzero(table, NCHARS * sizeof(int)); while (next(str)) table[str->lastch] = 1; if (cflag) for (p = table, cnt = NCHARS; cnt--; ++p) *p = !*p; } static void usage(void) { fprintf(stderr, "usage: tr [-Ccs] string1 string2\n" " tr [-Cc] -d string1\n" " tr [-Cc] -s string1\n" " tr [-Cc] -ds string1 string2\n"); exit(1); }