1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
|
#include <stdio.h>
#include "internal.h"
#include "plugin.h"
#include "engine.h"
#include "rccconfig.h"
#include "rccenca.h"
#ifdef RCC_ENCA_SUPPORT
# ifdef RCC_ENCA_DYNAMIC
# include "fake_enca.h"
# else
# include <enca.h>
# endif /* RCC_ENCA_DYNAMIC */
#endif /* RCC_ENCA_SUPPORT */
static rcc_library_handle enca_handle = NULL;
static rcc_engine *enca_engines = NULL;
rcc_engine_internal rccEncaInitContext(rcc_engine_context ctx) {
#ifdef RCC_ENCA_SUPPORT
EncaAnalyser enca;
if ((!ctx)||(!ctx->language)) return NULL;
enca = enca_analyser_alloc(ctx->language->sn);
if (!enca) return NULL;
enca_set_threshold(enca, 1);
enca_set_multibyte(enca, 1);
enca_set_ambiguity(enca, 1);
enca_set_garbage_test(enca, 0);
enca_set_filtering(enca, 0);
enca_set_significant(enca,1);
enca_set_termination_strictness(enca,0);
return (rcc_engine_internal)enca;
#else /* RCC_ENCA_SUPPORT */
return NULL;
#endif /* RCC_ENCA_SUPPORT */
}
void rccEncaFreeContext(rcc_engine_context ctx) {
rcc_engine_internal internal;
#ifdef RCC_ENCA_SUPPORT
internal = rccEngineGetInternal(ctx);
if (internal)
enca_analyser_free(internal);
#endif /* RCC_ENCA_SUPPORT */
}
rcc_charset_id rccEnca(rcc_engine_context ctx, const char *buf, int len) {
#ifdef RCC_ENCA_SUPPORT
rcc_engine_internal internal;
const char *charset;
EncaEncoding ee;
internal = rccEngineGetInternal(ctx);
if ((!internal)||(!buf)) return (rcc_charset_id)-1;
len = STRNLEN(buf, len);
ee = enca_analyse_const((EncaAnalyser)ctx->internal,buf,len);
if (ee.charset<0) return (rcc_charset_id)-1;
charset = enca_charset_name(ee.charset, ENCA_NAME_STYLE_ICONV);
return rccGetAutoCharsetByName(ctx->ctx, charset);
#else /* RCC_ENCA_SUPPORT */
return (rcc_charset_id)-1;
#endif /* RCC_ENCA_SUPPORT */
}
rcc_engine rcc_enca_engine = {
"Enca Library", &rccEncaInitContext, &rccEncaFreeContext, &rccEnca, {"UTF-8", NULL}
};
static int rccEncaLibraryLoad() {
#ifdef RCC_ENCA_DYNAMIC
if (enca_handle) return 0;
enca_handle = rccLibraryOpen(RCC_ENCA_LIB);
if (!enca_handle) return -1;
enca_set_multibyte=rccLibraryFind(enca_handle,"enca_set_multibyte");
enca_set_interpreted_surfaces=rccLibraryFind(enca_handle,"enca_set_interpreted_surfaces");
enca_set_ambiguity=rccLibraryFind(enca_handle,"enca_set_ambiguity");
enca_set_filtering=rccLibraryFind(enca_handle,"enca_set_filtering");
enca_set_garbage_test=rccLibraryFind(enca_handle,"enca_set_garbage_test");
enca_set_termination_strictness=rccLibraryFind(enca_handle,"enca_set_termination_strictness");
enca_set_significant=rccLibraryFind(enca_handle,"enca_set_significant");
enca_set_threshold=rccLibraryFind(enca_handle,"enca_set_threshold");
enca_charset_name=rccLibraryFind(enca_handle,"enca_charset_name");
enca_get_language_charsets=rccLibraryFind(enca_handle,"enca_get_language_charsets");
enca_analyser_alloc=rccLibraryFind(enca_handle,"enca_analyser_alloc");
enca_analyser_free=rccLibraryFind(enca_handle,"enca_analyser_free");
enca_analyse_const=rccLibraryFind(enca_handle,"enca_analyse_const");
if ((!enca_set_multibyte)||(!enca_set_interpreted_surfaces)||(!enca_set_ambiguity)||
(!enca_set_filtering)||(!enca_set_garbage_test)||(!enca_set_termination_strictness)||
(!enca_set_significant)||(!enca_set_threshold)||(!enca_charset_name)||
(!enca_get_language_charsets)||(!enca_analyser_alloc)||(!enca_analyser_free)||
(!enca_analyse_const)) {
rccLibraryClose(enca_handle);
enca_handle = NULL;
# ifdef RCC_DEBUG
perror( "rccEnca. Incomplete function set in library" );
# endif /* RCC_DEBUG */
return -1;
}
#endif /* RCC_ENCA_DYNAMIC */
return 0;
}
static void rccEncaLibraryUnload() {
#ifdef RCC_ENCA_DYNAMIC
if (enca_handle) {
rccLibraryClose(enca_handle);
enca_handle = NULL;
}
#endif /* RCC_ENCA_DYNAMIC */
}
int rccEncaInit() {
int err;
unsigned int i,j,k,l;
rcc_engine **engines;
int *charsets;
size_t n_charsets;
const char *charset;
#ifdef RCC_ENCA_SUPPORT
if (enca_engines) return 0;
for (i=0;rcc_default_languages[i].sn;i++);
enca_engines = (rcc_engine*)malloc(i*sizeof(rcc_engine));
if (!enca_engines) return -1;
err = rccEncaLibraryLoad();
if (err) return 0;
for (i=0;rcc_default_languages[i].sn;i++) {
engines = rcc_default_languages[i].engines;
for (j=0;engines[j];j++)
if (j >= RCC_MAX_ENGINES) continue;
if (strlen(rcc_default_languages[i].sn)==2)
charsets = enca_get_language_charsets(rcc_default_languages[i].sn, &n_charsets);
else
charsets = NULL;
if (charsets) {
memcpy(enca_engines+i, &rcc_enca_engine, sizeof(rcc_engine));
for (k=0;enca_engines[i].charsets[k];k++);
if (n_charsets+k>=RCC_MAX_CHARSETS) n_charsets = RCC_MAX_CHARSETS-k;
for (l=0;l<n_charsets;l++) {
// Enca bug, STYLE_ICONV return's a lot of NULL's
charset = enca_charset_name(charsets[l], ENCA_NAME_STYLE_ICONV);
if (!charset) charset = enca_charset_name(charsets[l], ENCA_NAME_STYLE_ENCA);
enca_engines[i].charsets[k++] = charset;
}
enca_engines[j].charsets[k] = NULL;
engines[j] = enca_engines + i;
engines[j+1] = NULL;
free(charsets);
}
}
#endif /* RCC_ENCA_SUPPORT */
return 0;
}
void rccEncaFree() {
#ifdef RCC_ENCA_SUPPORT
rccEncaLibraryUnload();
if (enca_engines) {
free(enca_engines);
enca_engines = NULL;
}
#endif /* RCC_ENCA_SUPPORT */
}
|
