2 * Copyright (c) 1988, 1993
3 * The Regents of the University of California. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
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.
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
33 * @(#) Copyright (c) 1988, 1993 The Regents of the University of California. All rights reserved.
34 * @(#)tr.c 8.2 (Berkeley) 5/4/95
35 * $FreeBSD: src/usr.bin/tr/tr.c,v 1.8.2.2 2002/07/29 12:59:33 tjr Exp $
38 #include <sys/types.h>
51 * For -C option: determine whether a byte is a valid character in the
52 * current character set (as defined by LC_CTYPE).
54 #define ISCHAR(c) (iscntrl(c) || isprint(c))
56 static int string1[NCHARS] = {
57 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* ASCII */
58 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,
59 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17,
60 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f,
61 0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27,
62 0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f,
63 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37,
64 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f,
65 0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47,
66 0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f,
67 0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57,
68 0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f,
69 0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67,
70 0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f,
71 0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77,
72 0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f,
73 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87,
74 0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f,
75 0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97,
76 0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f,
77 0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7,
78 0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf,
79 0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7,
80 0xb8, 0xb9, 0xba, 0xbb, 0xbc, 0xbd, 0xbe, 0xbf,
81 0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7,
82 0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf,
83 0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7,
84 0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0xde, 0xdf,
85 0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7,
86 0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef,
87 0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7,
88 0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff,
91 STR s1 = { STRING1, NORMAL, 0, OOBCH, { 0, OOBCH }, NULL, NULL };
92 STR s2 = { STRING2, NORMAL, 0, OOBCH, { 0, OOBCH }, NULL, NULL };
94 static void setup(int *, char *, STR *, int, int);
95 static void usage(void);
98 main(int argc, char **argv)
100 int ch, cnt, lastch, *p;
101 int Cflag, cflag, dflag, sflag, isstring2;
103 (void)setlocale(LC_ALL, "");
105 Cflag = cflag = dflag = sflag = 0;
106 while ((ch = getopt(argc, argv, "Ccdsu")) != -1)
123 setbuf(stdout, NULL);
146 * tr -ds [-Cc] string1 string2
147 * Delete all characters (or complemented characters) in string1.
148 * Squeeze all characters in string2.
150 if (dflag && sflag) {
154 setup(string1, argv[0], &s1, cflag, Cflag);
155 setup(string2, argv[1], &s2, 0, 0);
157 for (lastch = OOBCH; (ch = getchar()) != EOF;)
158 if (!string1[ch] && (!string2[ch] || lastch != ch)) {
166 * tr -d [-Cc] string1
167 * Delete all characters (or complemented characters) in string1.
173 setup(string1, argv[0], &s1, cflag, Cflag);
175 while ((ch = getchar()) != EOF)
182 * tr -s [-Cc] string1
183 * Squeeze all characters (or complemented characters) in string1.
185 if (sflag && !isstring2) {
186 setup(string1, argv[0], &s1, cflag, Cflag);
188 for (lastch = OOBCH; (ch = getchar()) != EOF;)
189 if (!string1[ch] || lastch != ch) {
197 * tr [-Ccs] string1 string2
198 * Replace all characters (or complemented characters) in string1 with
199 * the character in the same position in string2. If the -s option is
200 * specified, squeeze all the characters in string2.
209 for (cnt = NCHARS, p = string1; cnt--;)
213 errx(1, "empty string2");
216 /* If string2 runs out of characters, use the last one specified. */
219 string1[s1.lastch] = ch = s2.lastch;
225 string1[s1.lastch] = ch = s2.lastch;
230 for (cnt = 0, p = string1; cnt < NCHARS; ++p, ++cnt)
231 *p = *p == OOBCH ? ch : cnt;
233 for (cnt = 0, p = string1; cnt < NCHARS; ++p, ++cnt)
234 *p = *p == OOBCH && ISCHAR(cnt) ? ch : cnt;
237 for (lastch = OOBCH; (ch = getchar()) != EOF;) {
239 if (!string2[ch] || lastch != ch) {
245 while ((ch = getchar()) != EOF)
246 (void)putchar(string1[ch]);
251 setup(int *string, char *arg, STR *str, int cflag, int Cflag)
256 bzero(string, NCHARS * sizeof(int));
258 string[str->lastch] = 1;
260 for (p = string, cnt = NCHARS; cnt--; ++p)
263 for (cnt = 0; cnt < NCHARS; cnt++)
264 string[cnt] = !string[cnt] && ISCHAR(cnt);
270 (void)fprintf(stderr, "%s\n%s\n%s\n%s\n",
271 "usage: tr [-Ccsu] string1 string2",
272 " tr [-Ccu] -d string1",
273 " tr [-Ccu] -s string1",
274 " tr [-Ccu] -ds string1 string2");