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5 * This code is derived from software contributed to Berkeley by
6 * Paul Borman at Krystal Technologies.
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36 * @(#)euc.c 8.1 (Berkeley) 6/4/93
37 * $FreeBSD: src/lib/libc/locale/euc.c,v 1.3.6.2 2002/08/12 11:17:37 ache Exp $
38 * $DragonFly: src/lib/libc/locale/Attic/euc.c,v 1.3 2003/12/02 14:56:28 eirikn Exp $
41 #include <sys/types.h>
47 rune_t _EUC_sgetrune(const char *, size_t, char const **);
48 int _EUC_sputrune(rune_t, char *, size_t, char **);
61 int x, new__mb_cur_max;
64 rl->sgetrune = _EUC_sgetrune;
65 rl->sputrune = _EUC_sputrune;
67 if (rl->variable == NULL)
70 v = (char *)rl->variable;
72 while (*v == ' ' || *v == '\t')
75 if ((ei = malloc(sizeof(_EucInfo))) == NULL)
76 return (errno == 0 ? ENOMEM : errno);
79 for (x = 0; x < 4; ++x) {
80 ei->count[x] = (int)strtol(v, &e, 0);
81 if (v == e || !(v = e)) {
85 if (new__mb_cur_max < ei->count[x])
86 new__mb_cur_max = ei->count[x];
87 while (*v == ' ' || *v == '\t')
89 ei->bits[x] = (int)strtol(v, &e, 0);
90 if (v == e || !(v = e)) {
94 while (*v == ' ' || *v == '\t')
97 ei->mask = (int)strtol(v, &e, 0);
98 if (v == e || !(v = e)) {
103 rl->variable_len = sizeof(_EucInfo);
104 _CurrentRuneLocale = rl;
105 __mb_cur_max = new__mb_cur_max;
109 #define CEI ((_EucInfo *)(_CurrentRuneLocale->variable))
114 #define GR_BITS 0x80808080 /* XXX: to be fixed */
122 return ((c & 0x80) ? c == _SS3 ? 3 : c == _SS2 ? 2 : 1 : 0);
125 _EUC_sgetrune(string, n, result)
133 if (n < 1 || (len = CEI->count[set = _euc_set(*string)]) > n) {
136 return (_INVALID_RUNE);
147 rune = (rune << 8) | ((u_int)(*string++) & 0xff);
152 return ((rune & ~CEI->mask) | CEI->bits[set]);
156 _EUC_sputrune(c, string, n, result)
158 char *string, **result;
161 rune_t m = c & CEI->mask;
165 if (m == CEI->bits[1]) {
167 /* Codeset 1: The first byte must have 0x80 in it. */
168 i = len = CEI->count[1];
171 *result = string + len;
173 *string++ = (nm >> (i << 3)) | 0x80;
176 *result = (char *) 0;
178 if (m == CEI->bits[0]) {
179 i = len = CEI->count[0];
186 if (m == CEI->bits[2]) {
187 i = len = CEI->count[2];
195 /* SS2 designates G2 into GR */
198 if (m == CEI->bits[3]) {
199 i = len = CEI->count[3];
207 /* SS3 designates G3 into GR */
210 goto CodeSet1; /* Bletch */
212 *string++ = (nm >> (i << 3)) & 0xff;