Rev 7084 | Go to most recent revision | Details | Compare with Previous | Last modification | View Log | RSS feed
Rev | Author | Line No. | Line |
---|---|---|---|
7045 | ashmew2 | 1 | #include |
7057 | ashmew2 | 2 | #include |
3 | #include |
||
3479 | leency | 4 | |
5 | typedef int conv_t; |
||
6 | typedef unsigned int ucs4_t; |
||
7 | typedef int iconv_t; |
||
8 | |||
9 | /* Return code if invalid input after a shift sequence of n bytes was read. |
||
10 | (xxx_mbtowc) */ |
||
11 | #define RET_SHIFT_ILSEQ(n) (-1-2*(n)) |
||
12 | /* Return code if invalid. (xxx_mbtowc) */ |
||
13 | #define RET_ILSEQ RET_SHIFT_ILSEQ(0) |
||
14 | /* Return code if only a shift sequence of n bytes was read. (xxx_mbtowc) */ |
||
15 | #define RET_TOOFEW(n) (-2-2*(n)) |
||
16 | |||
17 | /* Return code if invalid. (xxx_wctomb) */ |
||
18 | #define RET_ILUNI -1 |
||
19 | /* Return code if output buffer is too small. (xxx_wctomb, xxx_reset) */ |
||
20 | #define RET_TOOSMALL -2 |
||
21 | |||
22 | #define CP866 0 |
||
23 | #define CP1251 1 |
||
24 | #define CP1252 2 |
||
25 | #define KOI8_RU 3 |
||
26 | #define ISO8859_5 4 |
||
27 | #define UTF_8 5 |
||
7084 | hidnplayr | 28 | #define KOI8_R 6 |
7085 | hidnplayr | 29 | #define ISO8859_1 7 |
3479 | leency | 30 | |
31 | #include "cp866.h" |
||
32 | #include "cp1251.h" |
||
33 | #include "cp1252.h" |
||
7084 | hidnplayr | 34 | #include "koi8_r.h" |
3479 | leency | 35 | #include "koi8_ru.h" |
7085 | hidnplayr | 36 | #include "iso8859_1.h" |
3479 | leency | 37 | #include "iso8859_5.h" |
38 | #include "utf8.h" |
||
39 | |||
7057 | ashmew2 | 40 | int encoding(const char *someencoding) { |
6892 | ashmew2 | 41 | |
7057 | ashmew2 | 42 | char *what = strdup(someencoding); |
7005 | ashmew2 | 43 | /* Ignore //TRANSLIT or //IGNORE for now. */ |
44 | int i; |
||
45 | for(i = 0; i < strlen(what); i++) { |
||
46 | if(what[i] == '/') { |
||
47 | what[i] = '\0'; |
||
48 | break; |
||
49 | } |
||
50 | } |
||
51 | |||
7045 | ashmew2 | 52 | if (!strcasecmp(what,"CP866")) return CP866; |
53 | if (!strcasecmp(what,"CP1251")) return CP1251; |
||
7057 | ashmew2 | 54 | if (!strcasecmp(what,"windows-1251")) return CP1251; |
7045 | ashmew2 | 55 | if (!strcasecmp(what,"CP1252")) return CP1252; |
7084 | hidnplayr | 56 | if (!strcasecmp(what,"windows-1252")) return CP1252; |
57 | if (!strcasecmp(what,"KOI8-R")) return KOI8_R; |
||
7045 | ashmew2 | 58 | if (!strcasecmp(what,"KOI8-RU")) return KOI8_RU; |
7085 | hidnplayr | 59 | if (!strcasecmp(what,"ISO8859-1")) return ISO8859_1; |
7045 | ashmew2 | 60 | if (!strcasecmp(what,"ISO8859-5")) return ISO8859_5; |
61 | if (!strcasecmp(what,"UTF-8")) return UTF_8; |
||
3479 | leency | 62 | return -1; |
63 | } |
||
64 | |||
65 | iconv_t iconv_open(const char *tocode, const char *fromcode) { |
||
66 | int to, from; |
||
7044 | ashmew2 | 67 | |
3479 | leency | 68 | if ((to=encoding(tocode))==-1) return -1; |
69 | if ((from=encoding(fromcode))==-1) return -1; |
||
7044 | ashmew2 | 70 | |
3479 | leency | 71 | to=to<<16&0xFFFF0000; |
72 | from=from&0xFFFF; |
||
7057 | ashmew2 | 73 | |
3479 | leency | 74 | return to+from; |
75 | } |
||
76 | |||
6882 | ashmew2 | 77 | int iconv_close(iconv_t icd) |
78 | { |
||
79 | return 0; |
||
80 | } |
||
81 | |||
3479 | leency | 82 | size_t iconv(iconv_t cd, const char **inbuf, size_t *inbytesleft, |
83 | char **outbuf, size_t *outbytesleft) |
||
84 | { |
||
7057 | ashmew2 | 85 | int n, to, from; |
86 | size_t count1,count2; |
||
87 | unsigned int pwc; |
||
88 | int converted,written; |
||
3479 | leency | 89 | int (*mbtowc)(conv_t, ucs4_t *, const unsigned char *, int); |
7057 | ashmew2 | 90 | int (*wctomb)(conv_t, unsigned char *, ucs4_t, int); |
91 | |||
92 | to=cd>>16; |
||
93 | from=cd&0xFFFF; |
||
94 | |||
3479 | leency | 95 | switch (from) |
96 | { |
||
97 | case CP866: mbtowc=cp866_mbtowc; break; |
||
98 | case CP1251: mbtowc=cp1251_mbtowc; break; |
||
99 | case CP1252: mbtowc=cp1252_mbtowc; break; |
||
7085 | hidnplayr | 100 | case ISO8859_1: mbtowc=iso8859_1_mbtowc; break; |
3479 | leency | 101 | case ISO8859_5: mbtowc=iso8859_5_mbtowc; break; |
7084 | hidnplayr | 102 | case KOI8_R: mbtowc=koi8_r_mbtowc; break; |
3479 | leency | 103 | case KOI8_RU: mbtowc=koi8_ru_mbtowc; break; |
104 | case UTF_8: mbtowc=utf8_mbtowc; break; |
||
7057 | ashmew2 | 105 | default: return (size_t)-1; |
3479 | leency | 106 | } |
7057 | ashmew2 | 107 | |
3479 | leency | 108 | switch (to) |
109 | { |
||
110 | case CP866: wctomb=cp866_wctomb; break; |
||
111 | case CP1251: wctomb=cp1251_wctomb; break; |
||
112 | case CP1252: wctomb=cp1252_wctomb; break; |
||
7085 | hidnplayr | 113 | case ISO8859_1: wctomb=iso8859_1_wctomb; break; |
3479 | leency | 114 | case ISO8859_5: wctomb=iso8859_5_wctomb; break; |
7084 | hidnplayr | 115 | case KOI8_R: wctomb=koi8_r_wctomb; break; |
3479 | leency | 116 | case KOI8_RU: wctomb=koi8_ru_wctomb; break; |
117 | case UTF_8: wctomb=utf8_wctomb; break; |
||
7057 | ashmew2 | 118 | default: return (size_t)-1; |
3479 | leency | 119 | } |
6894 | ashmew2 | 120 | |
7057 | ashmew2 | 121 | count1=0; |
122 | count2=0; |
||
6894 | ashmew2 | 123 | |
7057 | ashmew2 | 124 | /* Convert input multibyte char to wide character by using calls to mbtowc */ |
125 | /* Convert wide character to multibyte by calls to wctomb */ |
||
126 | /* Handle errors as we go on converting to be as standard compliant as possible */ |
||
127 | while(count1 < *inbytesleft) { |
||
128 | unsigned char mbholder[] = { 0,0,0,0,0,0 }; |
||
129 | |||
130 | int numbytes = (mbtowc)(0, &pwc,((*inbuf)+count1), *inbytesleft - count1); |
||
131 | if(numbytes < 0) { |
||
132 | /* errno = EILSEQ if invalid multibyte sequence encountered in input */ |
||
133 | /* errno = EINVAL if input ends in the middle of a multibyte sequence */ |
||
134 | |||
135 | switch(numbytes) { |
||
136 | case RET_TOOFEW(0): |
||
137 | errno = EINVAL; |
||
138 | break; |
||
139 | |||
140 | case RET_ILSEQ: |
||
141 | errno = EILSEQ; |
||
142 | break; |
||
143 | } |
||
144 | |||
145 | *inbytesleft -= count1; |
||
146 | *outbytesleft -= count2; |
||
147 | *inbuf += count1; |
||
148 | *outbuf += count2; |
||
149 | return (size_t) -1; |
||
6894 | ashmew2 | 150 | } |
151 | |||
7057 | ashmew2 | 152 | /* Convert from wide to multibyte storing result in mbholder and num converted in numbytes2 */ |
153 | /* Pass the minimum amount of space we have, one from mbholder and one from remaining in outbuf */ |
||
154 | int minspace = sizeof(mbholder) <= (*outbytesleft - count2) ? sizeof(mbholder) : (*outbytesleft - count2); |
||
155 | |||
156 | int numbytes2 = (wctomb)(0, &mbholder[0], pwc, minspace); |
||
157 | if(numbytes2 < 0) { |
||
158 | switch(numbytes2) { |
||
159 | case RET_ILUNI: |
||
160 | errno = EILSEQ; |
||
161 | break; |
||
162 | case RET_TOOSMALL: |
||
163 | errno = E2BIG; |
||
164 | break; |
||
165 | } |
||
166 | |||
167 | *inbytesleft -= count1; |
||
168 | *outbytesleft -= count2; |
||
169 | *inbuf += count1; |
||
170 | *outbuf += count2; |
||
171 | |||
172 | return (size_t) -1; |
||
173 | } |
||
174 | |||
175 | int i; |
||
176 | for(i = 0; i < numbytes2; i++) { |
||
177 | *(*outbuf + count2 + i) = mbholder[i]; |
||
178 | } |
||
179 | |||
180 | count1+=numbytes; |
||
181 | count2+=numbytes2; |
||
6894 | ashmew2 | 182 | } |
7057 | ashmew2 | 183 | |
184 | /* Successfully converted everything, update the variables and return number of bytes converted */ |
||
185 | *inbytesleft -= count1; |
||
186 | *outbytesleft -= count2; |
||
187 | *inbuf += count1; |
||
188 | *outbuf += count2; |
||
189 | |||
190 | return count1; |
||
3479 | leency | 191 | } |
192 | |||
7057 | ashmew2 | 193 | /* int main() */ |
194 | /* { */ |
||
195 | /* char *s;// ="вертолет"; */ |
||
196 | /* char *z; */ |
||
197 | /* //unsigned int pwc; */ |
||
198 | /* iconv_t cd; */ |
||
199 | /* size_t in, out; */ |
||
3479 | leency | 200 | |
7057 | ashmew2 | 201 | /* FILE *infile; */ |
202 | /* char *fname = "file3.txt"; */ |
||
3479 | leency | 203 | |
7057 | ashmew2 | 204 | /* size_t testmax = 100; */ |
205 | /* size_t test = 0; */ |
||
3479 | leency | 206 | |
7057 | ashmew2 | 207 | /* infile = fopen(fname,"r"); */ |
3479 | leency | 208 | |
7057 | ashmew2 | 209 | /* fseek(infile, 0, SEEK_END); */ |
210 | /* size_t file_size = ftell(infile); */ |
||
211 | /* rewind(infile); */ |
||
3479 | leency | 212 | |
7057 | ashmew2 | 213 | /* char *buffer = (char*)malloc(file_size * sizeof(char)); */ |
214 | /* if (buffer == NULL) */ |
||
215 | /* { */ |
||
216 | /* fclose(infile); */ |
||
217 | /* printf("Error allocating %d bytes.\n", file_size * sizeof(char)); */ |
||
218 | /* return -1; */ |
||
219 | /* } */ |
||
220 | /* size_t bytes_read = fread(buffer, sizeof(char), file_size, infile); */ |
||
221 | /* if (bytes_read != file_size) */ |
||
222 | /* { */ |
||
223 | /* /\* printf("Have read only %d bytes of %d.\n", bytes_read, file_size); *\/ */ |
||
224 | /* free(buffer); */ |
||
225 | /* fclose(infile); */ |
||
226 | /* return -1; */ |
||
227 | /* } */ |
||
3479 | leency | 228 | |
7057 | ashmew2 | 229 | /* /\* in=strlen(buffer); *\/ */ |
230 | /* in = bytes_read; */ |
||
231 | /* z=malloc(in+12000); */ |
||
3479 | leency | 232 | |
7057 | ashmew2 | 233 | /* out=in-1000; */ |
234 | /* cd=iconv_open("UTF-8","UTF-8"); */ |
||
235 | /* // printf("%x\n",cd); */ |
||
236 | /* int t; */ |
||
237 | /* char *zor = z; */ |
||
238 | |||
239 | /* /\* for(t = 0; t < 27400; t++) *\/ */ |
||
240 | /* /\* printf("0x%x,", buffer[t]); *\/ */ |
||
241 | |||
242 | /* t=iconv(cd, &buffer, &in, &z, &out); */ |
||
243 | /* /\* printf("\nResult after iconv(): %d", t); *\/ */ |
||
244 | |||
245 | /* /\* for(t = 0; t < 24259; t++) *\/ */ |
||
246 | /* /\* printf("%c", zor[t]); *\/ */ |
||
247 | |||
248 | /* //for (;s |
||
249 | /* } */ |
||
250 | |||
251 | /* typedef struct */ |
||
252 | /* { */ |
||
253 | /* char *name; */ |
||
254 | /* void *f; */ |
||
255 | /* } export_t; */ |
||
256 | |||
257 | /* char szStart[] = "START"; */ |
||
258 | /* char szVersion[] = "version"; */ |
||
259 | /* char sziconv_open[] = "iconv_open"; */ |
||
260 | /* char sziconv[] = "iconv"; */ |
||
261 | |||
262 | /* export_t EXPORTS[] __asm__("EXPORTS") = */ |
||
263 | /* { */ |
||
264 | /* { szStart, (void*)0x0 }, */ |
||
265 | /* { szVersion, (void*)0x00010001 }, */ |
||
266 | /* { sziconv_open, iconv_open }, */ |
||
267 | /* { sziconv, iconv }, */ |
||
268 | /* { NULL, NULL }, */ |
||
269 | /* }; */>>>>=>>>16&0xFFFF0000; |