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
34 #include <sys/cdefs.h>
36 __FBSDID("$FreeBSD$");
39 static const char copyright[] =
40 "@(#) Copyright (c) 1988, 1993\n\
41 The Regents of the University of California. All rights reserved.\n";
45 static const char sccsid[] = "@(#)tr.c 8.2 (Berkeley) 5/4/95";
48 #include <sys/types.h>
61 * For -C option: determine whether a byte is a valid character in the
62 * current character set (as defined by LC_CTYPE).
64 #define ISCHAR(c) (iscntrl(c) || isprint(c))
66 static int string1[NCHARS] = {
67 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* ASCII */
68 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,
69 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17,
70 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f,
71 0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27,
72 0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f,
73 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37,
74 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f,
75 0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47,
76 0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f,
77 0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57,
78 0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f,
79 0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67,
80 0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f,
81 0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77,
82 0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f,
83 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87,
84 0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f,
85 0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97,
86 0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f,
87 0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7,
88 0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf,
89 0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7,
90 0xb8, 0xb9, 0xba, 0xbb, 0xbc, 0xbd, 0xbe, 0xbf,
91 0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7,
92 0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf,
93 0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7,
94 0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0xde, 0xdf,
95 0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7,
96 0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef,
97 0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7,
98 0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff,
101 STR s1 = { STRING1, NORMAL, 0, OOBCH, { 0, OOBCH }, NULL, NULL };
102 STR s2 = { STRING2, NORMAL, 0, OOBCH, { 0, OOBCH }, NULL, NULL };
104 static int charcoll(const void *, const void *);
105 static void setup(int *, char *, STR *, int, int);
106 static void usage(void);
109 main(int argc, char **argv)
111 static int collorder[NCHARS], tmpmap[NCHARS];
112 int ch, cnt, lastch, *p;
113 int Cflag, cflag, dflag, sflag, isstring2;
115 (void)setlocale(LC_ALL, "");
117 Cflag = cflag = dflag = sflag = 0;
118 while ((ch = getopt(argc, argv, "Ccdsu")) != -1)
135 setbuf(stdout, (char *)NULL);
158 * tr -ds [-Cc] string1 string2
159 * Delete all characters (or complemented characters) in string1.
160 * Squeeze all characters in string2.
162 if (dflag && sflag) {
166 setup(string1, argv[0], &s1, cflag, Cflag);
167 setup(string2, argv[1], &s2, 0, 0);
169 for (lastch = OOBCH; (ch = getchar()) != EOF;)
170 if (!string1[ch] && (!string2[ch] || lastch != ch)) {
178 * tr -d [-Cc] string1
179 * Delete all characters (or complemented characters) in string1.
185 setup(string1, argv[0], &s1, cflag, Cflag);
187 while ((ch = getchar()) != EOF)
194 * tr -s [-Cc] string1
195 * Squeeze all characters (or complemented characters) in string1.
197 if (sflag && !isstring2) {
198 setup(string1, argv[0], &s1, cflag, Cflag);
200 for (lastch = OOBCH; (ch = getchar()) != EOF;)
201 if (!string1[ch] || lastch != ch) {
209 * tr [-Ccs] string1 string2
210 * Replace all characters (or complemented characters) in string1 with
211 * the character in the same position in string2. If the -s option is
212 * specified, squeeze all the characters in string2.
221 for (cnt = NCHARS, p = string1; cnt--;)
225 errx(1, "empty string2");
228 /* If string2 runs out of characters, use the last one specified. */
231 string1[s1.lastch] = ch = s2.lastch;
237 string1[s1.lastch] = ch = s2.lastch;
241 if (cflag || Cflag) {
244 for (cnt = 0, p = string1; cnt < NCHARS; ++p, ++cnt) {
245 if (*p == OOBCH && (!Cflag || ISCHAR(cnt))) {
254 * Generate a table for locale single-byte collating element
255 * ordering and use it to reorder string1 as required by
256 * IEEE Std. 1003.1-2001.
258 for (ch = 0; ch < NCHARS; ch++)
260 mergesort(collorder, NCHARS, sizeof(*collorder), charcoll);
261 for (ch = 0; ch < NCHARS; ch++)
262 tmpmap[ch] = string1[collorder[ch]];
263 memcpy(string1, tmpmap, sizeof(tmpmap));
267 for (lastch = OOBCH; (ch = getchar()) != EOF;) {
269 if (!string2[ch] || lastch != ch) {
275 while ((ch = getchar()) != EOF)
276 (void)putchar(string1[ch]);
281 setup(int *string, char *arg, STR *str, int cflag, int Cflag)
286 bzero(string, NCHARS * sizeof(int));
288 string[str->lastch] = 1;
290 for (p = string, cnt = NCHARS; cnt--; ++p)
293 for (cnt = 0; cnt < NCHARS; cnt++)
294 string[cnt] = !string[cnt] && ISCHAR(cnt);
298 charcoll(const void *a, const void *b)
302 sa[0] = *(const int *)a;
303 sb[0] = *(const int *)b;
304 sa[1] = sb[1] = '\0';
305 return (strcoll(sa, sb));
311 (void)fprintf(stderr, "%s\n%s\n%s\n%s\n",
312 "usage: tr [-Ccsu] string1 string2",
313 " tr [-Ccu] -d string1",
314 " tr [-Ccu] -s string1",
315 " tr [-Ccu] -ds string1 string2");