3 * The Regents of the University of California. All rights reserved.
5 * This code is derived from software contributed to Berkeley by
6 * Paul Borman at Krystal Technologies.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. All advertising materials mentioning features or use of this software
17 * must display the following acknowledgement:
18 * This product includes software developed by the University of
19 * California, Berkeley and its contributors.
20 * 4. Neither the name of the University nor the names of its contributors
21 * may be used to endorse or promote products derived from this software
22 * without specific prior written permission.
24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
38 #if defined(LIBC_SCCS) && !defined(lint)
39 static char sccsid[] = "@(#)euc.c 8.1 (Berkeley) 6/4/93";
40 #endif /* LIBC_SCCS and not lint */
42 #include <sys/types.h>
51 rune_t _EUC_sgetrune __P((const char *, size_t, char const **));
52 int _EUC_sputrune __P((rune_t, char *, size_t, char **));
68 rl->sgetrune = _EUC_sgetrune;
69 rl->sputrune = _EUC_sputrune;
75 v = (char *) rl->variable;
77 while (*v == ' ' || *v == '\t')
80 if ((ei = malloc(sizeof(_EucInfo))) == NULL) {
84 for (x = 0; x < 4; ++x) {
85 ei->count[x] = (int) strtol(v, &e, 0);
86 if (v == e || !(v = e)) {
91 while (*v == ' ' || *v == '\t')
93 ei->bits[x] = (int) strtol(v, &e, 0);
94 if (v == e || !(v = e)) {
99 while (*v == ' ' || *v == '\t')
102 ei->mask = (int)strtol(v, &e, 0);
103 if (v == e || !(v = e)) {
108 if (sizeof(_EucInfo) <= rl->variable_len) {
109 memcpy(rl->variable, ei, sizeof(_EucInfo));
114 rl->variable_len = sizeof(_EucInfo);
115 _CurrentRuneLocale = rl;
120 #define CEI ((_EucInfo *)(_CurrentRuneLocale->variable))
131 return ((c & 0x80) ? c == _SS3 ? 3 : c == _SS2 ? 2 : 1 : 0);
134 _EUC_sgetrune(string, n, result)
142 if (n < 1 || (len = CEI->count[set = _euc_set(*string)]) > n) {
145 return (_INVALID_RUNE);
156 rune = (rune << 8) | ((u_int)(*string++) & 0xff);
161 return ((rune & ~CEI->mask) | CEI->bits[set]);
165 _EUC_sputrune(c, string, n, result)
167 char *string, **result;
170 rune_t m = c & CEI->mask;
174 if (m == CEI->bits[1]) {
176 /* Codeset 1: The first byte must have 0x80 in it. */
177 i = len = CEI->count[1];
180 *result = string + len;
182 *string++ = (nm >> (i << 3)) | 0x80;
185 *result = (char *) 0;
187 if (m == CEI->bits[0]) {
188 i = len = CEI->count[0];
195 if (m == CEI->bits[2]) {
196 i = len = CEI->count[2];
205 if (m == CEI->bits[3]) {
206 i = len = CEI->count[3];
215 goto CodeSet1; /* Bletch */
217 *string++ = (nm >> (i << 3)) & 0xff;