1 /* 2 * Copyright (c) 1988, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by the University of 16 * California, Berkeley and its contributors. 17 * 4. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 */ 33 34 #ifndef lint 35 static char copyright[] = 36 "@(#) Copyright (c) 1988, 1993\n\ 37 The Regents of the University of California. All rights reserved.\n"; 38 #endif /* not lint */ 39 40 #ifndef lint 41 static char sccsid[] = "@(#)tr.c 8.1 (Berkeley) 6/6/93"; 42 #endif /* not lint */ 43 44 #include <locale.h> 45 #include <sys/types.h> 46 #include <stdio.h> 47 #include <stdlib.h> 48 #include <string.h> 49 #include "extern.h" 50 51 static int string1[NCHARS] = { 52 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* ASCII */ 53 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 54 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 55 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, 56 0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 57 0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, 58 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 59 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, 60 0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 61 0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, 62 0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, 63 0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, 64 0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, 65 0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, 66 0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, 67 0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, 68 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, 69 0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f, 70 0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, 71 0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f, 72 0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7, 73 0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf, 74 0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7, 75 0xb8, 0xb9, 0xba, 0xbb, 0xbc, 0xbd, 0xbe, 0xbf, 76 0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, 77 0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, 78 0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7, 79 0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0xde, 0xdf, 80 0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, 81 0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef, 82 0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, 83 0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff, 84 }, string2[NCHARS]; 85 86 STR s1 = { STRING1, NORMAL, 0, OOBCH, { 0, OOBCH }, NULL, NULL }; 87 STR s2 = { STRING2, NORMAL, 0, OOBCH, { 0, OOBCH }, NULL, NULL }; 88 89 static void setup __P((int *, char *, STR *, int)); 90 static void usage __P((void)); 91 92 int 93 main(argc, argv) 94 int argc; 95 char **argv; 96 { 97 register int ch, cnt, lastch, *p; 98 int cflag, dflag, sflag, isstring2; 99 100 (void) setlocale(LC_CTYPE, ""); 101 102 cflag = dflag = sflag = 0; 103 while ((ch = getopt(argc, argv, "cds")) != EOF) 104 switch((char)ch) { 105 case 'c': 106 cflag = 1; 107 break; 108 case 'd': 109 dflag = 1; 110 break; 111 case 's': 112 sflag = 1; 113 break; 114 case '?': 115 default: 116 usage(); 117 } 118 argc -= optind; 119 argv += optind; 120 121 switch(argc) { 122 case 0: 123 default: 124 usage(); 125 /* NOTREACHED */ 126 case 1: 127 isstring2 = 0; 128 break; 129 case 2: 130 isstring2 = 1; 131 break; 132 } 133 134 /* 135 * tr -ds [-c] string1 string2 136 * Delete all characters (or complemented characters) in string1. 137 * Squeeze all characters in string2. 138 */ 139 if (dflag && sflag) { 140 if (!isstring2) 141 usage(); 142 143 setup(string1, argv[0], &s1, cflag); 144 setup(string2, argv[1], &s2, 0); 145 146 for (lastch = OOBCH; (ch = getchar()) != EOF;) 147 if (!string1[ch] && (!string2[ch] || lastch != ch)) { 148 lastch = ch; 149 (void)putchar(ch); 150 } 151 exit(0); 152 } 153 154 /* 155 * tr -d [-c] string1 156 * Delete all characters (or complemented characters) in string1. 157 */ 158 if (dflag) { 159 if (isstring2) 160 usage(); 161 162 setup(string1, argv[0], &s1, cflag); 163 164 while ((ch = getchar()) != EOF) 165 if (!string1[ch]) 166 (void)putchar(ch); 167 exit(0); 168 } 169 170 /* 171 * tr -s [-c] string1 172 * Squeeze all characters (or complemented characters) in string1. 173 */ 174 if (sflag && !isstring2) { 175 setup(string1, argv[0], &s1, cflag); 176 177 for (lastch = OOBCH; (ch = getchar()) != EOF;) 178 if (!string1[ch] || lastch != ch) { 179 lastch = ch; 180 (void)putchar(ch); 181 } 182 exit(0); 183 } 184 185 /* 186 * tr [-cs] string1 string2 187 * Replace all characters (or complemented characters) in string1 with 188 * the character in the same position in string2. If the -s option is 189 * specified, squeeze all the characters in string2. 190 */ 191 if (!isstring2) 192 usage(); 193 194 s1.str = argv[0]; 195 s2.str = argv[1]; 196 197 if (cflag) 198 for (cnt = NCHARS, p = string1; cnt--;) 199 *p++ = OOBCH; 200 201 if (!next(&s2)) 202 err("empty string2"); 203 204 /* If string2 runs out of characters, use the last one specified. */ 205 if (sflag) 206 while (next(&s1)) { 207 string1[s1.lastch] = ch = s2.lastch; 208 string2[ch] = 1; 209 (void)next(&s2); 210 } 211 else 212 while (next(&s1)) { 213 string1[s1.lastch] = ch = s2.lastch; 214 (void)next(&s2); 215 } 216 217 if (cflag) 218 for (cnt = 0, p = string1; cnt < NCHARS; ++p, ++cnt) 219 *p = *p == OOBCH ? ch : cnt; 220 221 if (sflag) 222 for (lastch = OOBCH; (ch = getchar()) != EOF;) { 223 ch = string1[ch]; 224 if (!string2[ch] || lastch != ch) { 225 lastch = ch; 226 (void)putchar(ch); 227 } 228 } 229 else 230 while ((ch = getchar()) != EOF) 231 (void)putchar(string1[ch]); 232 exit (0); 233 } 234 235 static void 236 setup(string, arg, str, cflag) 237 int *string; 238 char *arg; 239 STR *str; 240 int cflag; 241 { 242 register int cnt, *p; 243 244 str->str = arg; 245 bzero(string, NCHARS * sizeof(int)); 246 while (next(str)) 247 string[str->lastch] = 1; 248 if (cflag) 249 for (p = string, cnt = NCHARS; cnt--; ++p) 250 *p = !*p; 251 } 252 253 static void 254 usage() 255 { 256 (void)fprintf(stderr, "usage: tr [-cs] string1 string2\n"); 257 (void)fprintf(stderr, " tr [-c] -d string1\n"); 258 (void)fprintf(stderr, " tr [-c] -s string1\n"); 259 (void)fprintf(stderr, " tr [-c] -ds string1 string2\n"); 260 exit(1); 261 } 262 263 #if __STDC__ 264 #include <stdarg.h> 265 #else 266 #include <varargs.h> 267 #endif 268 269 void 270 #if __STDC__ 271 err(const char *fmt, ...) 272 #else 273 err(fmt, va_alist) 274 char *fmt; 275 va_dcl 276 #endif 277 { 278 va_list ap; 279 #if __STDC__ 280 va_start(ap, fmt); 281 #else 282 va_start(ap); 283 #endif 284 (void)fprintf(stderr, "tr: "); 285 (void)vfprintf(stderr, fmt, ap); 286 va_end(ap); 287 (void)fprintf(stderr, "\n"); 288 exit(1); 289 /* NOTREACHED */ 290 } 291