1 /*
2 **********************************************************************
3 * Copyright (C) 2010-2015, International Business Machines
4 * Corporation and others. All Rights Reserved.
5 **********************************************************************
6 * file name: ucnv_ct.c
7 * encoding: US-ASCII
8 * tab size: 8 (not used)
9 * indentation:4
10 *
11 * created on: 2010Dec09
12 * created by: Michael Ow
13 */
14
15 #include "unicode/utypes.h"
16
17 #if !UCONFIG_NO_CONVERSION && !UCONFIG_NO_LEGACY_CONVERSION && !UCONFIG_ONLY_HTML_CONVERSION
18
19 #include "unicode/ucnv.h"
20 #include "unicode/uset.h"
21 #include "unicode/ucnv_err.h"
22 #include "unicode/ucnv_cb.h"
23 #include "unicode/utf16.h"
24 #include "ucnv_imp.h"
25 #include "ucnv_bld.h"
26 #include "ucnv_cnv.h"
27 #include "ucnvmbcs.h"
28 #include "cstring.h"
29 #include "cmemory.h"
30
31 typedef enum {
32 INVALID = -2,
33 DO_SEARCH = -1,
34
35 COMPOUND_TEXT_SINGLE_0 = 0,
36 COMPOUND_TEXT_SINGLE_1 = 1,
37 COMPOUND_TEXT_SINGLE_2 = 2,
38 COMPOUND_TEXT_SINGLE_3 = 3,
39
40 COMPOUND_TEXT_DOUBLE_1 = 4,
41 COMPOUND_TEXT_DOUBLE_2 = 5,
42 COMPOUND_TEXT_DOUBLE_3 = 6,
43 COMPOUND_TEXT_DOUBLE_4 = 7,
44 COMPOUND_TEXT_DOUBLE_5 = 8,
45 COMPOUND_TEXT_DOUBLE_6 = 9,
46 COMPOUND_TEXT_DOUBLE_7 = 10,
47
48 COMPOUND_TEXT_TRIPLE_DOUBLE = 11,
49
50 IBM_915 = 12,
51 IBM_916 = 13,
52 IBM_914 = 14,
53 IBM_874 = 15,
54 IBM_912 = 16,
55 IBM_913 = 17,
56 ISO_8859_14 = 18,
57 IBM_923 = 19,
58 NUM_OF_CONVERTERS = 20
59 } COMPOUND_TEXT_CONVERTERS;
60
61 #define SEARCH_LENGTH 12
62
63 static const uint8_t escSeqCompoundText[NUM_OF_CONVERTERS][5] = {
64 /* Single */
65 { 0x1B, 0x2D, 0x41, 0, 0 },
66 { 0x1B, 0x2D, 0x4D, 0, 0 },
67 { 0x1B, 0x2D, 0x46, 0, 0 },
68 { 0x1B, 0x2D, 0x47, 0, 0 },
69
70 /* Double */
71 { 0x1B, 0x24, 0x29, 0x41, 0 },
72 { 0x1B, 0x24, 0x29, 0x42, 0 },
73 { 0x1B, 0x24, 0x29, 0x43, 0 },
74 { 0x1B, 0x24, 0x29, 0x44, 0 },
75 { 0x1B, 0x24, 0x29, 0x47, 0 },
76 { 0x1B, 0x24, 0x29, 0x48, 0 },
77 { 0x1B, 0x24, 0x29, 0x49, 0 },
78
79 /* Triple/Double */
80 { 0x1B, 0x25, 0x47, 0, 0 },
81
82 /*IBM-915*/
83 { 0x1B, 0x2D, 0x4C, 0, 0 },
84 /*IBM-916*/
85 { 0x1B, 0x2D, 0x48, 0, 0 },
86 /*IBM-914*/
87 { 0x1B, 0x2D, 0x44, 0, 0 },
88 /*IBM-874*/
89 { 0x1B, 0x2D, 0x54, 0, 0 },
90 /*IBM-912*/
91 { 0x1B, 0x2D, 0x42, 0, 0 },
92 /* IBM-913 */
93 { 0x1B, 0x2D, 0x43, 0, 0 },
94 /* ISO-8859_14 */
95 { 0x1B, 0x2D, 0x5F, 0, 0 },
96 /* IBM-923 */
97 { 0x1B, 0x2D, 0x62, 0, 0 },
98 };
99
100 #define ESC_START 0x1B
101
102 #define isASCIIRange(codepoint) \
103 ((codepoint == 0x0000) || (codepoint == 0x0009) || (codepoint == 0x000A) || \
104 (codepoint >= 0x0020 && codepoint <= 0x007f) || (codepoint >= 0x00A0 && codepoint <= 0x00FF))
105
106 #define isIBM915(codepoint) \
107 ((codepoint >= 0x0401 && codepoint <= 0x045F) || (codepoint == 0x2116))
108
109 #define isIBM916(codepoint) \
110 ((codepoint >= 0x05D0 && codepoint <= 0x05EA) || (codepoint == 0x2017) || (codepoint == 0x203E))
111
112 #define isCompoundS3(codepoint) \
113 ((codepoint == 0x060C) || (codepoint == 0x061B) || (codepoint == 0x061F) || (codepoint >= 0x0621 && codepoint <= 0x063A) || \
114 (codepoint >= 0x0640 && codepoint <= 0x0652) || (codepoint >= 0x0660 && codepoint <= 0x066D) || (codepoint == 0x200B) || \
115 (codepoint >= 0x0FE70 && codepoint <= 0x0FE72) || (codepoint == 0x0FE74) || (codepoint >= 0x0FE76 && codepoint <= 0x0FEBE))
116
117 #define isCompoundS2(codepoint) \
118 ((codepoint == 0x02BC) || (codepoint == 0x02BD) || (codepoint >= 0x0384 && codepoint <= 0x03CE) || (codepoint == 0x2015))
119
120 #define isIBM914(codepoint) \
121 ((codepoint == 0x0100) || (codepoint == 0x0101) || (codepoint == 0x0112) || (codepoint == 0x0113) || (codepoint == 0x0116) || (codepoint == 0x0117) || \
122 (codepoint == 0x0122) || (codepoint == 0x0123) || (codepoint >= 0x0128 && codepoint <= 0x012B) || (codepoint == 0x012E) || (codepoint == 0x012F) || \
123 (codepoint >= 0x0136 && codepoint <= 0x0138) || (codepoint == 0x013B) || (codepoint == 0x013C) || (codepoint == 0x0145) || (codepoint == 0x0146) || \
124 (codepoint >= 0x014A && codepoint <= 0x014D) || (codepoint == 0x0156) || (codepoint == 0x0157) || (codepoint >= 0x0166 && codepoint <= 0x016B) || \
125 (codepoint == 0x0172) || (codepoint == 0x0173))
126
127 #define isIBM874(codepoint) \
128 ((codepoint >= 0x0E01 && codepoint <= 0x0E3A) || (codepoint >= 0x0E3F && codepoint <= 0x0E5B))
129
130 #define isIBM912(codepoint) \
131 ((codepoint >= 0x0102 && codepoint <= 0x0107) || (codepoint >= 0x010C && codepoint <= 0x0111) || (codepoint >= 0x0118 && codepoint <= 0x011B) || \
132 (codepoint == 0x0139) || (codepoint == 0x013A) || (codepoint == 0x013D) || (codepoint == 0x013E) || (codepoint >= 0x0141 && codepoint <= 0x0144) || \
133 (codepoint == 0x0147) || (codepoint == 0x0147) || (codepoint == 0x0150) || (codepoint == 0x0151) || (codepoint == 0x0154) || (codepoint == 0x0155) || \
134 (codepoint >= 0x0158 && codepoint <= 0x015B) || (codepoint == 0x015E) || (codepoint == 0x015F) || (codepoint >= 0x0160 && codepoint <= 0x0165) || \
135 (codepoint == 0x016E) || (codepoint == 0x016F) || (codepoint == 0x0170) || (codepoint == 0x0171) || (codepoint >= 0x0179 && codepoint <= 0x017E) || \
136 (codepoint == 0x02C7) || (codepoint == 0x02D8) || (codepoint == 0x02D9) || (codepoint == 0x02DB) || (codepoint == 0x02DD))
137
138 #define isIBM913(codepoint) \
139 ((codepoint >= 0x0108 && codepoint <= 0x010B) || (codepoint == 0x011C) || \
140 (codepoint == 0x011D) || (codepoint == 0x0120) || (codepoint == 0x0121) || \
141 (codepoint >= 0x0124 && codepoint <= 0x0127) || (codepoint == 0x0134) || (codepoint == 0x0135) || \
142 (codepoint == 0x015C) || (codepoint == 0x015D) || (codepoint == 0x016C) || (codepoint == 0x016D))
143
144 #define isCompoundS1(codepoint) \
145 ((codepoint == 0x011E) || (codepoint == 0x011F) || (codepoint == 0x0130) || \
146 (codepoint == 0x0131) || (codepoint >= 0x0218 && codepoint <= 0x021B))
147
148 #define isISO8859_14(codepoint) \
149 ((codepoint >= 0x0174 && codepoint <= 0x0177) || (codepoint == 0x1E0A) || \
150 (codepoint == 0x1E0B) || (codepoint == 0x1E1E) || (codepoint == 0x1E1F) || \
151 (codepoint == 0x1E40) || (codepoint == 0x1E41) || (codepoint == 0x1E56) || \
152 (codepoint == 0x1E57) || (codepoint == 0x1E60) || (codepoint == 0x1E61) || \
153 (codepoint == 0x1E6A) || (codepoint == 0x1E6B) || (codepoint == 0x1EF2) || \
154 (codepoint == 0x1EF3) || (codepoint >= 0x1E80 && codepoint <= 0x1E85))
155
156 #define isIBM923(codepoint) \
157 ((codepoint == 0x0152) || (codepoint == 0x0153) || (codepoint == 0x0178) || (codepoint == 0x20AC))
158
159
160 typedef struct{
161 UConverterSharedData *myConverterArray[NUM_OF_CONVERTERS];
162 COMPOUND_TEXT_CONVERTERS state;
163 } UConverterDataCompoundText;
164
165 /*********** Compound Text Converter Protos ***********/
166 static void
167 _CompoundTextOpen(UConverter *cnv, UConverterLoadArgs *pArgs, UErrorCode *errorCode);
168
169 static void
170 _CompoundTextClose(UConverter *converter);
171
172 static void
173 _CompoundTextReset(UConverter *converter, UConverterResetChoice choice);
174
175 static const char*
176 _CompoundTextgetName(const UConverter* cnv);
177
178
findNextEsc(const char * source,const char * sourceLimit)179 static int32_t findNextEsc(const char *source, const char *sourceLimit) {
180 int32_t length = sourceLimit - source;
181 int32_t i;
182 for (i = 1; i < length; i++) {
183 if (*(source + i) == 0x1B) {
184 return i;
185 }
186 }
187
188 return length;
189 }
190
getState(int codepoint)191 static COMPOUND_TEXT_CONVERTERS getState(int codepoint) {
192 COMPOUND_TEXT_CONVERTERS state = DO_SEARCH;
193
194 if (isASCIIRange(codepoint)) {
195 state = COMPOUND_TEXT_SINGLE_0;
196 } else if (isIBM912(codepoint)) {
197 state = IBM_912;
198 }else if (isIBM913(codepoint)) {
199 state = IBM_913;
200 } else if (isISO8859_14(codepoint)) {
201 state = ISO_8859_14;
202 } else if (isIBM923(codepoint)) {
203 state = IBM_923;
204 } else if (isIBM874(codepoint)) {
205 state = IBM_874;
206 } else if (isIBM914(codepoint)) {
207 state = IBM_914;
208 } else if (isCompoundS2(codepoint)) {
209 state = COMPOUND_TEXT_SINGLE_2;
210 } else if (isCompoundS3(codepoint)) {
211 state = COMPOUND_TEXT_SINGLE_3;
212 } else if (isIBM916(codepoint)) {
213 state = IBM_916;
214 } else if (isIBM915(codepoint)) {
215 state = IBM_915;
216 } else if (isCompoundS1(codepoint)) {
217 state = COMPOUND_TEXT_SINGLE_1;
218 }
219
220 return state;
221 }
222
findStateFromEscSeq(const char * source,const char * sourceLimit,const uint8_t * toUBytesBuffer,int32_t toUBytesBufferLength,UErrorCode * err)223 static COMPOUND_TEXT_CONVERTERS findStateFromEscSeq(const char* source, const char* sourceLimit, const uint8_t* toUBytesBuffer, int32_t toUBytesBufferLength, UErrorCode *err) {
224 COMPOUND_TEXT_CONVERTERS state = INVALID;
225 UBool matchFound = FALSE;
226 int32_t i, n, offset = toUBytesBufferLength;
227
228 for (i = 0; i < NUM_OF_CONVERTERS; i++) {
229 matchFound = TRUE;
230 for (n = 0; escSeqCompoundText[i][n] != 0; n++) {
231 if (n < toUBytesBufferLength) {
232 if (toUBytesBuffer[n] != escSeqCompoundText[i][n]) {
233 matchFound = FALSE;
234 break;
235 }
236 } else if ((source + (n - offset)) >= sourceLimit) {
237 *err = U_TRUNCATED_CHAR_FOUND;
238 matchFound = FALSE;
239 break;
240 } else if (*(source + (n - offset)) != escSeqCompoundText[i][n]) {
241 matchFound = FALSE;
242 break;
243 }
244 }
245
246 if (matchFound) {
247 break;
248 }
249 }
250
251 if (matchFound) {
252 state = (COMPOUND_TEXT_CONVERTERS)i;
253 }
254
255 return state;
256 }
257
258 static void
_CompoundTextOpen(UConverter * cnv,UConverterLoadArgs * pArgs,UErrorCode * errorCode)259 _CompoundTextOpen(UConverter *cnv, UConverterLoadArgs *pArgs, UErrorCode *errorCode){
260 cnv->extraInfo = uprv_malloc (sizeof (UConverterDataCompoundText));
261 if (cnv->extraInfo != NULL) {
262 UConverterDataCompoundText *myConverterData = (UConverterDataCompoundText *) cnv->extraInfo;
263
264 UConverterNamePieces stackPieces;
265 UConverterLoadArgs stackArgs={ (int32_t)sizeof(UConverterLoadArgs) };
266
267 myConverterData->myConverterArray[COMPOUND_TEXT_SINGLE_0] = NULL;
268 myConverterData->myConverterArray[COMPOUND_TEXT_SINGLE_1] = ucnv_loadSharedData("icu-internal-compound-s1", &stackPieces, &stackArgs, errorCode);
269 myConverterData->myConverterArray[COMPOUND_TEXT_SINGLE_2] = ucnv_loadSharedData("icu-internal-compound-s2", &stackPieces, &stackArgs, errorCode);
270 myConverterData->myConverterArray[COMPOUND_TEXT_SINGLE_3] = ucnv_loadSharedData("icu-internal-compound-s3", &stackPieces, &stackArgs, errorCode);
271 myConverterData->myConverterArray[COMPOUND_TEXT_DOUBLE_1] = ucnv_loadSharedData("icu-internal-compound-d1", &stackPieces, &stackArgs, errorCode);
272 myConverterData->myConverterArray[COMPOUND_TEXT_DOUBLE_2] = ucnv_loadSharedData("icu-internal-compound-d2", &stackPieces, &stackArgs, errorCode);
273 myConverterData->myConverterArray[COMPOUND_TEXT_DOUBLE_3] = ucnv_loadSharedData("icu-internal-compound-d3", &stackPieces, &stackArgs, errorCode);
274 myConverterData->myConverterArray[COMPOUND_TEXT_DOUBLE_4] = ucnv_loadSharedData("icu-internal-compound-d4", &stackPieces, &stackArgs, errorCode);
275 myConverterData->myConverterArray[COMPOUND_TEXT_DOUBLE_5] = ucnv_loadSharedData("icu-internal-compound-d5", &stackPieces, &stackArgs, errorCode);
276 myConverterData->myConverterArray[COMPOUND_TEXT_DOUBLE_6] = ucnv_loadSharedData("icu-internal-compound-d6", &stackPieces, &stackArgs, errorCode);
277 myConverterData->myConverterArray[COMPOUND_TEXT_DOUBLE_7] = ucnv_loadSharedData("icu-internal-compound-d7", &stackPieces, &stackArgs, errorCode);
278 myConverterData->myConverterArray[COMPOUND_TEXT_TRIPLE_DOUBLE] = ucnv_loadSharedData("icu-internal-compound-t", &stackPieces, &stackArgs, errorCode);
279
280 myConverterData->myConverterArray[IBM_915] = ucnv_loadSharedData("ibm-915_P100-1995", &stackPieces, &stackArgs, errorCode);
281 myConverterData->myConverterArray[IBM_916] = ucnv_loadSharedData("ibm-916_P100-1995", &stackPieces, &stackArgs, errorCode);
282 myConverterData->myConverterArray[IBM_914] = ucnv_loadSharedData("ibm-914_P100-1995", &stackPieces, &stackArgs, errorCode);
283 myConverterData->myConverterArray[IBM_874] = ucnv_loadSharedData("ibm-874_P100-1995", &stackPieces, &stackArgs, errorCode);
284 myConverterData->myConverterArray[IBM_912] = ucnv_loadSharedData("ibm-912_P100-1995", &stackPieces, &stackArgs, errorCode);
285 myConverterData->myConverterArray[IBM_913] = ucnv_loadSharedData("ibm-913_P100-2000", &stackPieces, &stackArgs, errorCode);
286 myConverterData->myConverterArray[ISO_8859_14] = ucnv_loadSharedData("iso-8859_14-1998", &stackPieces, &stackArgs, errorCode);
287 myConverterData->myConverterArray[IBM_923] = ucnv_loadSharedData("ibm-923_P100-1998", &stackPieces, &stackArgs, errorCode);
288
289 if (U_FAILURE(*errorCode) || pArgs->onlyTestIsLoadable) {
290 _CompoundTextClose(cnv);
291 return;
292 }
293
294 myConverterData->state = (COMPOUND_TEXT_CONVERTERS)0;
295 } else {
296 *errorCode = U_MEMORY_ALLOCATION_ERROR;
297 }
298 }
299
300
301 static void
_CompoundTextClose(UConverter * converter)302 _CompoundTextClose(UConverter *converter) {
303 UConverterDataCompoundText* myConverterData = (UConverterDataCompoundText*)(converter->extraInfo);
304 int32_t i;
305
306 if (converter->extraInfo != NULL) {
307 /*close the array of converter pointers and free the memory*/
308 for (i = 0; i < NUM_OF_CONVERTERS; i++) {
309 if (myConverterData->myConverterArray[i] != NULL) {
310 ucnv_unloadSharedDataIfReady(myConverterData->myConverterArray[i]);
311 }
312 }
313
314 uprv_free(converter->extraInfo);
315 }
316 }
317
318 static void
_CompoundTextReset(UConverter * converter,UConverterResetChoice choice)319 _CompoundTextReset(UConverter *converter, UConverterResetChoice choice) {
320 }
321
322 static const char*
_CompoundTextgetName(const UConverter * cnv)323 _CompoundTextgetName(const UConverter* cnv){
324 return "x11-compound-text";
325 }
326
327 static void
UConverter_fromUnicode_CompoundText_OFFSETS(UConverterFromUnicodeArgs * args,UErrorCode * err)328 UConverter_fromUnicode_CompoundText_OFFSETS(UConverterFromUnicodeArgs* args, UErrorCode* err){
329 UConverter *cnv = args->converter;
330 uint8_t *target = (uint8_t *) args->target;
331 const uint8_t *targetLimit = (const uint8_t *) args->targetLimit;
332 const UChar* source = args->source;
333 const UChar* sourceLimit = args->sourceLimit;
334 /* int32_t* offsets = args->offsets; */
335 UChar32 sourceChar;
336 UBool useFallback = cnv->useFallback;
337 uint8_t tmpTargetBuffer[7];
338 int32_t tmpTargetBufferLength = 0;
339 COMPOUND_TEXT_CONVERTERS currentState, tmpState;
340 uint32_t pValue;
341 int32_t pValueLength = 0;
342 int32_t i, n, j;
343
344 UConverterDataCompoundText *myConverterData = (UConverterDataCompoundText *) cnv->extraInfo;
345
346 currentState = myConverterData->state;
347
348 /* check if the last codepoint of previous buffer was a lead surrogate*/
349 if((sourceChar = cnv->fromUChar32)!=0 && target< targetLimit) {
350 goto getTrail;
351 }
352
353 while( source < sourceLimit){
354 if(target < targetLimit){
355
356 sourceChar = *(source++);
357 /*check if the char is a First surrogate*/
358 if(U16_IS_SURROGATE(sourceChar)) {
359 if(U16_IS_SURROGATE_LEAD(sourceChar)) {
360 getTrail:
361 /*look ahead to find the trail surrogate*/
362 if(source < sourceLimit) {
363 /* test the following code unit */
364 UChar trail=(UChar) *source;
365 if(U16_IS_TRAIL(trail)) {
366 source++;
367 sourceChar=U16_GET_SUPPLEMENTARY(sourceChar, trail);
368 cnv->fromUChar32=0x00;
369 /* convert this supplementary code point */
370 /* exit this condition tree */
371 } else {
372 /* this is an unmatched lead code unit (1st surrogate) */
373 /* callback(illegal) */
374 *err=U_ILLEGAL_CHAR_FOUND;
375 cnv->fromUChar32=sourceChar;
376 break;
377 }
378 } else {
379 /* no more input */
380 cnv->fromUChar32=sourceChar;
381 break;
382 }
383 } else {
384 /* this is an unmatched trail code unit (2nd surrogate) */
385 /* callback(illegal) */
386 *err=U_ILLEGAL_CHAR_FOUND;
387 cnv->fromUChar32=sourceChar;
388 break;
389 }
390 }
391
392 tmpTargetBufferLength = 0;
393 tmpState = getState(sourceChar);
394
395 if (tmpState != DO_SEARCH && currentState != tmpState) {
396 /* Get escape sequence if necessary */
397 currentState = tmpState;
398 for (i = 0; escSeqCompoundText[currentState][i] != 0; i++) {
399 tmpTargetBuffer[tmpTargetBufferLength++] = escSeqCompoundText[currentState][i];
400 }
401 }
402
403 if (tmpState == DO_SEARCH) {
404 /* Test all available converters */
405 for (i = 1; i < SEARCH_LENGTH; i++) {
406 pValueLength = ucnv_MBCSFromUChar32(myConverterData->myConverterArray[i], sourceChar, &pValue, useFallback);
407 if (pValueLength > 0) {
408 tmpState = (COMPOUND_TEXT_CONVERTERS)i;
409 if (currentState != tmpState) {
410 currentState = tmpState;
411 for (j = 0; escSeqCompoundText[currentState][j] != 0; j++) {
412 tmpTargetBuffer[tmpTargetBufferLength++] = escSeqCompoundText[currentState][j];
413 }
414 }
415 for (n = (pValueLength - 1); n >= 0; n--) {
416 tmpTargetBuffer[tmpTargetBufferLength++] = (uint8_t)(pValue >> (n * 8));
417 }
418 break;
419 }
420 }
421 } else if (tmpState == COMPOUND_TEXT_SINGLE_0) {
422 tmpTargetBuffer[tmpTargetBufferLength++] = (uint8_t)sourceChar;
423 } else {
424 pValueLength = ucnv_MBCSFromUChar32(myConverterData->myConverterArray[currentState], sourceChar, &pValue, useFallback);
425 if (pValueLength > 0) {
426 for (n = (pValueLength - 1); n >= 0; n--) {
427 tmpTargetBuffer[tmpTargetBufferLength++] = (uint8_t)(pValue >> (n * 8));
428 }
429 }
430 }
431
432 for (i = 0; i < tmpTargetBufferLength; i++) {
433 if (target < targetLimit) {
434 *target++ = tmpTargetBuffer[i];
435 } else {
436 *err = U_BUFFER_OVERFLOW_ERROR;
437 break;
438 }
439 }
440
441 if (*err == U_BUFFER_OVERFLOW_ERROR) {
442 for (; i < tmpTargetBufferLength; i++) {
443 args->converter->charErrorBuffer[args->converter->charErrorBufferLength++] = tmpTargetBuffer[i];
444 }
445 }
446 } else {
447 *err = U_BUFFER_OVERFLOW_ERROR;
448 break;
449 }
450 }
451
452 /*save the state and return */
453 myConverterData->state = currentState;
454 args->source = source;
455 args->target = (char*)target;
456 }
457
458
459 static void
UConverter_toUnicode_CompoundText_OFFSETS(UConverterToUnicodeArgs * args,UErrorCode * err)460 UConverter_toUnicode_CompoundText_OFFSETS(UConverterToUnicodeArgs *args,
461 UErrorCode* err){
462 const char *mySource = (char *) args->source;
463 UChar *myTarget = args->target;
464 const char *mySourceLimit = args->sourceLimit;
465 const char *tmpSourceLimit = mySourceLimit;
466 uint32_t mySourceChar = 0x0000;
467 COMPOUND_TEXT_CONVERTERS currentState, tmpState;
468 int32_t sourceOffset = 0;
469 UConverterDataCompoundText *myConverterData = (UConverterDataCompoundText *) args->converter->extraInfo;
470 UConverterSharedData* savedSharedData = NULL;
471
472 UConverterToUnicodeArgs subArgs;
473 int32_t minArgsSize;
474
475 /* set up the subconverter arguments */
476 if(args->size<sizeof(UConverterToUnicodeArgs)) {
477 minArgsSize = args->size;
478 } else {
479 minArgsSize = (int32_t)sizeof(UConverterToUnicodeArgs);
480 }
481
482 uprv_memcpy(&subArgs, args, minArgsSize);
483 subArgs.size = (uint16_t)minArgsSize;
484
485 currentState = tmpState = myConverterData->state;
486
487 while(mySource < mySourceLimit){
488 if(myTarget < args->targetLimit){
489 if (args->converter->toULength > 0) {
490 mySourceChar = args->converter->toUBytes[0];
491 } else {
492 mySourceChar = (uint8_t)*mySource;
493 }
494
495 if (mySourceChar == ESC_START) {
496 tmpState = findStateFromEscSeq(mySource, mySourceLimit, args->converter->toUBytes, args->converter->toULength, err);
497
498 if (*err == U_TRUNCATED_CHAR_FOUND) {
499 for (; mySource < mySourceLimit;) {
500 args->converter->toUBytes[args->converter->toULength++] = *mySource++;
501 }
502 *err = U_ZERO_ERROR;
503 break;
504 } else if (tmpState == INVALID) {
505 if (args->converter->toULength == 0) {
506 mySource++; /* skip over the 0x1b byte */
507 }
508 *err = U_ILLEGAL_CHAR_FOUND;
509 break;
510 }
511
512 if (tmpState != currentState) {
513 currentState = tmpState;
514 }
515
516 sourceOffset = uprv_strlen((char*)escSeqCompoundText[currentState]) - args->converter->toULength;
517
518 mySource += sourceOffset;
519
520 args->converter->toULength = 0;
521 }
522
523 if (currentState == COMPOUND_TEXT_SINGLE_0) {
524 while (mySource < mySourceLimit) {
525 if (*mySource == ESC_START) {
526 break;
527 }
528 if (myTarget < args->targetLimit) {
529 *myTarget++ = 0x00ff&(*mySource++);
530 } else {
531 *err = U_BUFFER_OVERFLOW_ERROR;
532 break;
533 }
534 }
535 } else if (mySource < mySourceLimit){
536 sourceOffset = findNextEsc(mySource, mySourceLimit);
537
538 tmpSourceLimit = mySource + sourceOffset;
539
540 subArgs.source = mySource;
541 subArgs.sourceLimit = tmpSourceLimit;
542 subArgs.target = myTarget;
543 savedSharedData = subArgs.converter->sharedData;
544 subArgs.converter->sharedData = myConverterData->myConverterArray[currentState];
545
546 ucnv_MBCSToUnicodeWithOffsets(&subArgs, err);
547
548 subArgs.converter->sharedData = savedSharedData;
549
550 mySource = subArgs.source;
551 myTarget = subArgs.target;
552
553 if (U_FAILURE(*err)) {
554 if(*err == U_BUFFER_OVERFLOW_ERROR) {
555 if(subArgs.converter->UCharErrorBufferLength > 0) {
556 uprv_memcpy(args->converter->UCharErrorBuffer, subArgs.converter->UCharErrorBuffer,
557 subArgs.converter->UCharErrorBufferLength);
558 }
559 args->converter->UCharErrorBufferLength=subArgs.converter->UCharErrorBufferLength;
560 subArgs.converter->UCharErrorBufferLength = 0;
561 }
562 break;
563 }
564 }
565 } else {
566 *err = U_BUFFER_OVERFLOW_ERROR;
567 break;
568 }
569 }
570 myConverterData->state = currentState;
571 args->target = myTarget;
572 args->source = mySource;
573 }
574
575 static void
_CompoundText_GetUnicodeSet(const UConverter * cnv,const USetAdder * sa,UConverterUnicodeSet which,UErrorCode * pErrorCode)576 _CompoundText_GetUnicodeSet(const UConverter *cnv,
577 const USetAdder *sa,
578 UConverterUnicodeSet which,
579 UErrorCode *pErrorCode) {
580 UConverterDataCompoundText *myConverterData = (UConverterDataCompoundText *)cnv->extraInfo;
581 int32_t i;
582
583 for (i = 1; i < NUM_OF_CONVERTERS; i++) {
584 ucnv_MBCSGetUnicodeSetForUnicode(myConverterData->myConverterArray[i], sa, which, pErrorCode);
585 }
586 sa->add(sa->set, 0x0000);
587 sa->add(sa->set, 0x0009);
588 sa->add(sa->set, 0x000A);
589 sa->addRange(sa->set, 0x0020, 0x007F);
590 sa->addRange(sa->set, 0x00A0, 0x00FF);
591 }
592
593 static const UConverterImpl _CompoundTextImpl = {
594
595 UCNV_COMPOUND_TEXT,
596
597 NULL,
598 NULL,
599
600 _CompoundTextOpen,
601 _CompoundTextClose,
602 _CompoundTextReset,
603
604 UConverter_toUnicode_CompoundText_OFFSETS,
605 UConverter_toUnicode_CompoundText_OFFSETS,
606 UConverter_fromUnicode_CompoundText_OFFSETS,
607 UConverter_fromUnicode_CompoundText_OFFSETS,
608 NULL,
609
610 NULL,
611 _CompoundTextgetName,
612 NULL,
613 NULL,
614 _CompoundText_GetUnicodeSet
615 };
616 static const UConverterStaticData _CompoundTextStaticData = {
617 sizeof(UConverterStaticData),
618 "COMPOUND_TEXT",
619 0,
620 UCNV_IBM,
621 UCNV_COMPOUND_TEXT,
622 1,
623 6,
624 { 0xef, 0, 0, 0 },
625 1,
626 FALSE,
627 FALSE,
628 0,
629 0,
630 { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 } /* reserved */
631 };
632 const UConverterSharedData _CompoundTextData = {
633 sizeof(UConverterSharedData),
634 ~((uint32_t) 0),
635 NULL,
636 NULL,
637 &_CompoundTextStaticData,
638 FALSE,
639 &_CompoundTextImpl,
640 0
641 };
642
643 #endif /* #if !UCONFIG_NO_LEGACY_CONVERSION */
644