/* $NetBSD: tr.c,v 1.4 1994/12/07 08:35:17 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. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the University of * California, Berkeley and its contributors. * 4. 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. */ #ifndef lint static char copyright[] = "@(#) Copyright (c) 1988, 1993\n\ The Regents of the University of California. All rights reserved.\n"; #endif /* not lint */ #ifndef lint #if 0 static char sccsid[] = "@(#)tr.c 8.1 (Berkeley) 6/6/93"; #endif static char rcsid[] = "$NetBSD: tr.c,v 1.4 1994/12/07 08:35:17 jtc Exp $"; #endif /* not lint */ #include #include #include #include #include "extern.h" static int string1[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, }, string2[NCHARS]; STR s1 = { STRING1, NORMAL, 0, OOBCH, { 0, OOBCH }, NULL, NULL }; STR s2 = { STRING2, NORMAL, 0, OOBCH, { 0, OOBCH }, NULL, NULL }; static void setup __P((int *, char *, STR *, int)); static void usage __P((void)); int main(argc, argv) int argc; char **argv; { register int ch, cnt, lastch, *p; int cflag, dflag, sflag, isstring2; cflag = dflag = sflag = 0; while ((ch = getopt(argc, argv, "cds")) != EOF) switch((char)ch) { case 'c': cflag = 1; break; case 'd': dflag = 1; break; case 's': sflag = 1; break; case '?': default: usage(); } argc -= optind; argv += optind; switch(argc) { case 0: default: usage(); /* NOTREACHED */ case 1: isstring2 = 0; break; case 2: isstring2 = 1; break; } /* * tr -ds [-c] string1 string2 * Delete all characters (or complemented characters) in string1. * Squeeze all characters in string2. */ if (dflag && sflag) { if (!isstring2) usage(); setup(string1, argv[0], &s1, cflag); setup(string2, argv[1], &s2, 0); for (lastch = OOBCH; (ch = getchar()) != EOF;) if (!string1[ch] && (!string2[ch] || lastch != ch)) { lastch = ch; (void)putchar(ch); } exit(0); } /* * tr -d [-c] string1 * Delete all characters (or complemented characters) in string1. */ if (dflag) { if (isstring2) usage(); setup(string1, argv[0], &s1, cflag); while ((ch = getchar()) != EOF) if (!string1[ch]) (void)putchar(ch); exit(0); } /* * tr -s [-c] string1 * Squeeze all characters (or complemented characters) in string1. */ if (sflag && !isstring2) { setup(string1, argv[0], &s1, cflag); for (lastch = OOBCH; (ch = getchar()) != EOF;) if (!string1[ch] || lastch != ch) { lastch = ch; (void)putchar(ch); } exit(0); } /* * tr [-cs] 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 (!isstring2) usage(); s1.str = argv[0]; s2.str = argv[1]; if (cflag) for (cnt = NCHARS, p = string1; cnt--;) *p++ = OOBCH; if (!next(&s2)) err("empty string2"); /* If string2 runs out of characters, use the last one specified. */ if (sflag) while (next(&s1)) { string1[s1.lastch] = ch = s2.lastch; string2[ch] = 1; (void)next(&s2); } else while (next(&s1)) { string1[s1.lastch] = ch = s2.lastch; (void)next(&s2); } if (cflag) for (cnt = 0, p = string1; cnt < NCHARS; ++p, ++cnt) *p = *p == OOBCH ? ch : cnt; if (sflag) for (lastch = OOBCH; (ch = getchar()) != EOF;) { ch = string1[ch]; if (!string2[ch] || lastch != ch) { lastch = ch; (void)putchar(ch); } } else while ((ch = getchar()) != EOF) (void)putchar(string1[ch]); exit (0); } static void setup(string, arg, str, cflag) int *string; char *arg; STR *str; int cflag; { register int cnt, *p; str->str = arg; bzero(string, NCHARS * sizeof(int)); while (next(str)) string[str->lastch] = 1; if (cflag) for (p = string, cnt = NCHARS; cnt--; ++p) *p = !*p; } static void usage() { (void)fprintf(stderr, "usage: tr [-cs] string1 string2\n"); (void)fprintf(stderr, " tr [-c] -d string1\n"); (void)fprintf(stderr, " tr [-c] -s string1\n"); (void)fprintf(stderr, " tr [-c] -ds string1 string2\n"); exit(1); } #if __STDC__ #include #else #include #endif void #if __STDC__ err(const char *fmt, ...) #else err(fmt, va_alist) char *fmt; va_dcl #endif { va_list ap; #if __STDC__ va_start(ap, fmt); #else va_start(ap); #endif (void)fprintf(stderr, "tr: "); (void)vfprintf(stderr, fmt, ap); va_end(ap); (void)fprintf(stderr, "\n"); exit(1); /* NOTREACHED */ }