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comparison: intl/icu/source/common/ucnv_ct.c

intl/icu/source/common/ucnv_ct.c

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1 /*
2 **********************************************************************
3 * Copyright (C) 2010-2012, 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
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 #define LENGTHOF(array) (int32_t)(sizeof(array)/sizeof((array)[0]))
32
33 typedef enum {
34 INVALID = -2,
35 DO_SEARCH = -1,
36
37 COMPOUND_TEXT_SINGLE_0 = 0,
38 COMPOUND_TEXT_SINGLE_1 = 1,
39 COMPOUND_TEXT_SINGLE_2 = 2,
40 COMPOUND_TEXT_SINGLE_3 = 3,
41
42 COMPOUND_TEXT_DOUBLE_1 = 4,
43 COMPOUND_TEXT_DOUBLE_2 = 5,
44 COMPOUND_TEXT_DOUBLE_3 = 6,
45 COMPOUND_TEXT_DOUBLE_4 = 7,
46 COMPOUND_TEXT_DOUBLE_5 = 8,
47 COMPOUND_TEXT_DOUBLE_6 = 9,
48 COMPOUND_TEXT_DOUBLE_7 = 10,
49
50 COMPOUND_TEXT_TRIPLE_DOUBLE = 11,
51
52 IBM_915 = 12,
53 IBM_916 = 13,
54 IBM_914 = 14,
55 IBM_874 = 15,
56 IBM_912 = 16,
57 IBM_913 = 17,
58 ISO_8859_14 = 18,
59 IBM_923 = 19,
60 NUM_OF_CONVERTERS = 20
61 } COMPOUND_TEXT_CONVERTERS;
62
63 #define SEARCH_LENGTH 12
64
65 static const uint8_t escSeqCompoundText[NUM_OF_CONVERTERS][5] = {
66 /* Single */
67 { 0x1B, 0x2D, 0x41, 0, 0 },
68 { 0x1B, 0x2D, 0x4D, 0, 0 },
69 { 0x1B, 0x2D, 0x46, 0, 0 },
70 { 0x1B, 0x2D, 0x47, 0, 0 },
71
72 /* Double */
73 { 0x1B, 0x24, 0x29, 0x41, 0 },
74 { 0x1B, 0x24, 0x29, 0x42, 0 },
75 { 0x1B, 0x24, 0x29, 0x43, 0 },
76 { 0x1B, 0x24, 0x29, 0x44, 0 },
77 { 0x1B, 0x24, 0x29, 0x47, 0 },
78 { 0x1B, 0x24, 0x29, 0x48, 0 },
79 { 0x1B, 0x24, 0x29, 0x49, 0 },
80
81 /* Triple/Double */
82 { 0x1B, 0x25, 0x47, 0, 0 },
83
84 /*IBM-915*/
85 { 0x1B, 0x2D, 0x4C, 0, 0 },
86 /*IBM-916*/
87 { 0x1B, 0x2D, 0x48, 0, 0 },
88 /*IBM-914*/
89 { 0x1B, 0x2D, 0x44, 0, 0 },
90 /*IBM-874*/
91 { 0x1B, 0x2D, 0x54, 0, 0 },
92 /*IBM-912*/
93 { 0x1B, 0x2D, 0x42, 0, 0 },
94 /* IBM-913 */
95 { 0x1B, 0x2D, 0x43, 0, 0 },
96 /* ISO-8859_14 */
97 { 0x1B, 0x2D, 0x5F, 0, 0 },
98 /* IBM-923 */
99 { 0x1B, 0x2D, 0x62, 0, 0 },
100 };
101
102 #define ESC_START 0x1B
103
104 #define isASCIIRange(codepoint) \
105 ((codepoint == 0x0000) || (codepoint == 0x0009) || (codepoint == 0x000A) || \
106 (codepoint >= 0x0020 && codepoint <= 0x007f) || (codepoint >= 0x00A0 && codepoint <= 0x00FF))
107
108 #define isIBM915(codepoint) \
109 ((codepoint >= 0x0401 && codepoint <= 0x045F) || (codepoint == 0x2116))
110
111 #define isIBM916(codepoint) \
112 ((codepoint >= 0x05D0 && codepoint <= 0x05EA) || (codepoint == 0x2017) || (codepoint == 0x203E))
113
114 #define isCompoundS3(codepoint) \
115 ((codepoint == 0x060C) || (codepoint == 0x061B) || (codepoint == 0x061F) || (codepoint >= 0x0621 && codepoint <= 0x063A) || \
116 (codepoint >= 0x0640 && codepoint <= 0x0652) || (codepoint >= 0x0660 && codepoint <= 0x066D) || (codepoint == 0x200B) || \
117 (codepoint >= 0x0FE70 && codepoint <= 0x0FE72) || (codepoint == 0x0FE74) || (codepoint >= 0x0FE76 && codepoint <= 0x0FEBE))
118
119 #define isCompoundS2(codepoint) \
120 ((codepoint == 0x02BC) || (codepoint == 0x02BD) || (codepoint >= 0x0384 && codepoint <= 0x03CE) || (codepoint == 0x2015))
121
122 #define isIBM914(codepoint) \
123 ((codepoint == 0x0100) || (codepoint == 0x0101) || (codepoint == 0x0112) || (codepoint == 0x0113) || (codepoint == 0x0116) || (codepoint == 0x0117) || \
124 (codepoint == 0x0122) || (codepoint == 0x0123) || (codepoint >= 0x0128 && codepoint <= 0x012B) || (codepoint == 0x012E) || (codepoint == 0x012F) || \
125 (codepoint >= 0x0136 && codepoint <= 0x0138) || (codepoint == 0x013B) || (codepoint == 0x013C) || (codepoint == 0x0145) || (codepoint == 0x0146) || \
126 (codepoint >= 0x014A && codepoint <= 0x014D) || (codepoint == 0x0156) || (codepoint == 0x0157) || (codepoint >= 0x0166 && codepoint <= 0x016B) || \
127 (codepoint == 0x0172) || (codepoint == 0x0173))
128
129 #define isIBM874(codepoint) \
130 ((codepoint >= 0x0E01 && codepoint <= 0x0E3A) || (codepoint >= 0x0E3F && codepoint <= 0x0E5B))
131
132 #define isIBM912(codepoint) \
133 ((codepoint >= 0x0102 && codepoint <= 0x0107) || (codepoint >= 0x010C && codepoint <= 0x0111) || (codepoint >= 0x0118 && codepoint <= 0x011B) || \
134 (codepoint == 0x0139) || (codepoint == 0x013A) || (codepoint == 0x013D) || (codepoint == 0x013E) || (codepoint >= 0x0141 && codepoint <= 0x0144) || \
135 (codepoint == 0x0147) || (codepoint == 0x0147) || (codepoint == 0x0150) || (codepoint == 0x0151) || (codepoint == 0x0154) || (codepoint == 0x0155) || \
136 (codepoint >= 0x0158 && codepoint <= 0x015B) || (codepoint == 0x015E) || (codepoint == 0x015F) || (codepoint >= 0x0160 && codepoint <= 0x0165) || \
137 (codepoint == 0x016E) || (codepoint == 0x016F) || (codepoint == 0x0170) || (codepoint == 0x0171) || (codepoint >= 0x0179 && codepoint <= 0x017E) || \
138 (codepoint == 0x02C7) || (codepoint == 0x02D8) || (codepoint == 0x02D9) || (codepoint == 0x02DB) || (codepoint == 0x02DD))
139
140 #define isIBM913(codepoint) \
141 ((codepoint >= 0x0108 && codepoint <= 0x010B) || (codepoint == 0x011C) || \
142 (codepoint == 0x011D) || (codepoint == 0x0120) || (codepoint == 0x0121) || \
143 (codepoint >= 0x0124 && codepoint <= 0x0127) || (codepoint == 0x0134) || (codepoint == 0x0135) || \
144 (codepoint == 0x015C) || (codepoint == 0x015D) || (codepoint == 0x016C) || (codepoint == 0x016D))
145
146 #define isCompoundS1(codepoint) \
147 ((codepoint == 0x011E) || (codepoint == 0x011F) || (codepoint == 0x0130) || \
148 (codepoint == 0x0131) || (codepoint >= 0x0218 && codepoint <= 0x021B))
149
150 #define isISO8859_14(codepoint) \
151 ((codepoint >= 0x0174 && codepoint <= 0x0177) || (codepoint == 0x1E0A) || \
152 (codepoint == 0x1E0B) || (codepoint == 0x1E1E) || (codepoint == 0x1E1F) || \
153 (codepoint == 0x1E40) || (codepoint == 0x1E41) || (codepoint == 0x1E56) || \
154 (codepoint == 0x1E57) || (codepoint == 0x1E60) || (codepoint == 0x1E61) || \
155 (codepoint == 0x1E6A) || (codepoint == 0x1E6B) || (codepoint == 0x1EF2) || \
156 (codepoint == 0x1EF3) || (codepoint >= 0x1E80 && codepoint <= 0x1E85))
157
158 #define isIBM923(codepoint) \
159 ((codepoint == 0x0152) || (codepoint == 0x0153) || (codepoint == 0x0178) || (codepoint == 0x20AC))
160
161
162 typedef struct{
163 UConverterSharedData *myConverterArray[NUM_OF_CONVERTERS];
164 COMPOUND_TEXT_CONVERTERS state;
165 } UConverterDataCompoundText;
166
167 /*********** Compound Text Converter Protos ***********/
168 static void
169 _CompoundTextOpen(UConverter *cnv, UConverterLoadArgs *pArgs, UErrorCode *errorCode);
170
171 static void
172 _CompoundTextClose(UConverter *converter);
173
174 static void
175 _CompoundTextReset(UConverter *converter, UConverterResetChoice choice);
176
177 static const char*
178 _CompoundTextgetName(const UConverter* cnv);
179
180
181 static int32_t findNextEsc(const char *source, const char *sourceLimit) {
182 int32_t length = sourceLimit - source;
183 int32_t i;
184 for (i = 1; i < length; i++) {
185 if (*(source + i) == 0x1B) {
186 return i;
187 }
188 }
189
190 return length;
191 }
192
193 static COMPOUND_TEXT_CONVERTERS getState(int codepoint) {
194 COMPOUND_TEXT_CONVERTERS state = DO_SEARCH;
195
196 if (isASCIIRange(codepoint)) {
197 state = COMPOUND_TEXT_SINGLE_0;
198 } else if (isIBM912(codepoint)) {
199 state = IBM_912;
200 }else if (isIBM913(codepoint)) {
201 state = IBM_913;
202 } else if (isISO8859_14(codepoint)) {
203 state = ISO_8859_14;
204 } else if (isIBM923(codepoint)) {
205 state = IBM_923;
206 } else if (isIBM874(codepoint)) {
207 state = IBM_874;
208 } else if (isIBM914(codepoint)) {
209 state = IBM_914;
210 } else if (isCompoundS2(codepoint)) {
211 state = COMPOUND_TEXT_SINGLE_2;
212 } else if (isCompoundS3(codepoint)) {
213 state = COMPOUND_TEXT_SINGLE_3;
214 } else if (isIBM916(codepoint)) {
215 state = IBM_916;
216 } else if (isIBM915(codepoint)) {
217 state = IBM_915;
218 } else if (isCompoundS1(codepoint)) {
219 state = COMPOUND_TEXT_SINGLE_1;
220 }
221
222 return state;
223 }
224
225 static COMPOUND_TEXT_CONVERTERS findStateFromEscSeq(const char* source, const char* sourceLimit, const uint8_t* toUBytesBuffer, int32_t toUBytesBufferLength, UErrorCode *err) {
226 COMPOUND_TEXT_CONVERTERS state = INVALID;
227 UBool matchFound = FALSE;
228 int32_t i, n, offset = toUBytesBufferLength;
229
230 for (i = 0; i < NUM_OF_CONVERTERS; i++) {
231 matchFound = TRUE;
232 for (n = 0; escSeqCompoundText[i][n] != 0; n++) {
233 if (n < toUBytesBufferLength) {
234 if (toUBytesBuffer[n] != escSeqCompoundText[i][n]) {
235 matchFound = FALSE;
236 break;
237 }
238 } else if ((source + (n - offset)) >= sourceLimit) {
239 *err = U_TRUNCATED_CHAR_FOUND;
240 matchFound = FALSE;
241 break;
242 } else if (*(source + (n - offset)) != escSeqCompoundText[i][n]) {
243 matchFound = FALSE;
244 break;
245 }
246 }
247
248 if (matchFound) {
249 break;
250 }
251 }
252
253 if (matchFound) {
254 state = (COMPOUND_TEXT_CONVERTERS)i;
255 }
256
257 return state;
258 }
259
260 static void
261 _CompoundTextOpen(UConverter *cnv, UConverterLoadArgs *pArgs, UErrorCode *errorCode){
262 cnv->extraInfo = uprv_malloc (sizeof (UConverterDataCompoundText));
263 if (cnv->extraInfo != NULL) {
264 UConverterDataCompoundText *myConverterData = (UConverterDataCompoundText *) cnv->extraInfo;
265
266 UConverterNamePieces stackPieces;
267 UConverterLoadArgs stackArgs={ (int32_t)sizeof(UConverterLoadArgs) };
268
269 myConverterData->myConverterArray[COMPOUND_TEXT_SINGLE_0] = NULL;
270 myConverterData->myConverterArray[COMPOUND_TEXT_SINGLE_1] = ucnv_loadSharedData("icu-internal-compound-s1", &stackPieces, &stackArgs, errorCode);
271 myConverterData->myConverterArray[COMPOUND_TEXT_SINGLE_2] = ucnv_loadSharedData("icu-internal-compound-s2", &stackPieces, &stackArgs, errorCode);
272 myConverterData->myConverterArray[COMPOUND_TEXT_SINGLE_3] = ucnv_loadSharedData("icu-internal-compound-s3", &stackPieces, &stackArgs, errorCode);
273 myConverterData->myConverterArray[COMPOUND_TEXT_DOUBLE_1] = ucnv_loadSharedData("icu-internal-compound-d1", &stackPieces, &stackArgs, errorCode);
274 myConverterData->myConverterArray[COMPOUND_TEXT_DOUBLE_2] = ucnv_loadSharedData("icu-internal-compound-d2", &stackPieces, &stackArgs, errorCode);
275 myConverterData->myConverterArray[COMPOUND_TEXT_DOUBLE_3] = ucnv_loadSharedData("icu-internal-compound-d3", &stackPieces, &stackArgs, errorCode);
276 myConverterData->myConverterArray[COMPOUND_TEXT_DOUBLE_4] = ucnv_loadSharedData("icu-internal-compound-d4", &stackPieces, &stackArgs, errorCode);
277 myConverterData->myConverterArray[COMPOUND_TEXT_DOUBLE_5] = ucnv_loadSharedData("icu-internal-compound-d5", &stackPieces, &stackArgs, errorCode);
278 myConverterData->myConverterArray[COMPOUND_TEXT_DOUBLE_6] = ucnv_loadSharedData("icu-internal-compound-d6", &stackPieces, &stackArgs, errorCode);
279 myConverterData->myConverterArray[COMPOUND_TEXT_DOUBLE_7] = ucnv_loadSharedData("icu-internal-compound-d7", &stackPieces, &stackArgs, errorCode);
280 myConverterData->myConverterArray[COMPOUND_TEXT_TRIPLE_DOUBLE] = ucnv_loadSharedData("icu-internal-compound-t", &stackPieces, &stackArgs, errorCode);
281
282 myConverterData->myConverterArray[IBM_915] = ucnv_loadSharedData("ibm-915_P100-1995", &stackPieces, &stackArgs, errorCode);
283 myConverterData->myConverterArray[IBM_916] = ucnv_loadSharedData("ibm-916_P100-1995", &stackPieces, &stackArgs, errorCode);
284 myConverterData->myConverterArray[IBM_914] = ucnv_loadSharedData("ibm-914_P100-1995", &stackPieces, &stackArgs, errorCode);
285 myConverterData->myConverterArray[IBM_874] = ucnv_loadSharedData("ibm-874_P100-1995", &stackPieces, &stackArgs, errorCode);
286 myConverterData->myConverterArray[IBM_912] = ucnv_loadSharedData("ibm-912_P100-1995", &stackPieces, &stackArgs, errorCode);
287 myConverterData->myConverterArray[IBM_913] = ucnv_loadSharedData("ibm-913_P100-2000", &stackPieces, &stackArgs, errorCode);
288 myConverterData->myConverterArray[ISO_8859_14] = ucnv_loadSharedData("iso-8859_14-1998", &stackPieces, &stackArgs, errorCode);
289 myConverterData->myConverterArray[IBM_923] = ucnv_loadSharedData("ibm-923_P100-1998", &stackPieces, &stackArgs, errorCode);
290
291 if (U_FAILURE(*errorCode) || pArgs->onlyTestIsLoadable) {
292 _CompoundTextClose(cnv);
293 return;
294 }
295
296 myConverterData->state = (COMPOUND_TEXT_CONVERTERS)0;
297 } else {
298 *errorCode = U_MEMORY_ALLOCATION_ERROR;
299 }
300 }
301
302
303 static void
304 _CompoundTextClose(UConverter *converter) {
305 UConverterDataCompoundText* myConverterData = (UConverterDataCompoundText*)(converter->extraInfo);
306 int32_t i;
307
308 if (converter->extraInfo != NULL) {
309 /*close the array of converter pointers and free the memory*/
310 for (i = 0; i < NUM_OF_CONVERTERS; i++) {
311 if (myConverterData->myConverterArray[i] != NULL) {
312 ucnv_unloadSharedDataIfReady(myConverterData->myConverterArray[i]);
313 }
314 }
315
316 uprv_free(converter->extraInfo);
317 }
318 }
319
320 static void
321 _CompoundTextReset(UConverter *converter, UConverterResetChoice choice) {
322 }
323
324 static const char*
325 _CompoundTextgetName(const UConverter* cnv){
326 return "x11-compound-text";
327 }
328
329 static void
330 UConverter_fromUnicode_CompoundText_OFFSETS(UConverterFromUnicodeArgs* args, UErrorCode* err){
331 UConverter *cnv = args->converter;
332 uint8_t *target = (uint8_t *) args->target;
333 const uint8_t *targetLimit = (const uint8_t *) args->targetLimit;
334 const UChar* source = args->source;
335 const UChar* sourceLimit = args->sourceLimit;
336 /* int32_t* offsets = args->offsets; */
337 UChar32 sourceChar;
338 UBool useFallback = cnv->useFallback;
339 uint8_t tmpTargetBuffer[7];
340 int32_t tmpTargetBufferLength = 0;
341 COMPOUND_TEXT_CONVERTERS currentState, tmpState;
342 uint32_t pValue;
343 int32_t pValueLength = 0;
344 int32_t i, n, j;
345
346 UConverterDataCompoundText *myConverterData = (UConverterDataCompoundText *) cnv->extraInfo;
347
348 currentState = myConverterData->state;
349
350 /* check if the last codepoint of previous buffer was a lead surrogate*/
351 if((sourceChar = cnv->fromUChar32)!=0 && target< targetLimit) {
352 goto getTrail;
353 }
354
355 while( source < sourceLimit){
356 if(target < targetLimit){
357
358 sourceChar = *(source++);
359 /*check if the char is a First surrogate*/
360 if(U16_IS_SURROGATE(sourceChar)) {
361 if(U16_IS_SURROGATE_LEAD(sourceChar)) {
362 getTrail:
363 /*look ahead to find the trail surrogate*/
364 if(source < sourceLimit) {
365 /* test the following code unit */
366 UChar trail=(UChar) *source;
367 if(U16_IS_TRAIL(trail)) {
368 source++;
369 sourceChar=U16_GET_SUPPLEMENTARY(sourceChar, trail);
370 cnv->fromUChar32=0x00;
371 /* convert this supplementary code point */
372 /* exit this condition tree */
373 } else {
374 /* this is an unmatched lead code unit (1st surrogate) */
375 /* callback(illegal) */
376 *err=U_ILLEGAL_CHAR_FOUND;
377 cnv->fromUChar32=sourceChar;
378 break;
379 }
380 } else {
381 /* no more input */
382 cnv->fromUChar32=sourceChar;
383 break;
384 }
385 } else {
386 /* this is an unmatched trail code unit (2nd surrogate) */
387 /* callback(illegal) */
388 *err=U_ILLEGAL_CHAR_FOUND;
389 cnv->fromUChar32=sourceChar;
390 break;
391 }
392 }
393
394 tmpTargetBufferLength = 0;
395 tmpState = getState(sourceChar);
396
397 if (tmpState != DO_SEARCH && currentState != tmpState) {
398 /* Get escape sequence if necessary */
399 currentState = tmpState;
400 for (i = 0; escSeqCompoundText[currentState][i] != 0; i++) {
401 tmpTargetBuffer[tmpTargetBufferLength++] = escSeqCompoundText[currentState][i];
402 }
403 }
404
405 if (tmpState == DO_SEARCH) {
406 /* Test all available converters */
407 for (i = 1; i < SEARCH_LENGTH; i++) {
408 pValueLength = ucnv_MBCSFromUChar32(myConverterData->myConverterArray[i], sourceChar, &pValue, useFallback);
409 if (pValueLength > 0) {
410 tmpState = (COMPOUND_TEXT_CONVERTERS)i;
411 if (currentState != tmpState) {
412 currentState = tmpState;
413 for (j = 0; escSeqCompoundText[currentState][j] != 0; j++) {
414 tmpTargetBuffer[tmpTargetBufferLength++] = escSeqCompoundText[currentState][j];
415 }
416 }
417 for (n = (pValueLength - 1); n >= 0; n--) {
418 tmpTargetBuffer[tmpTargetBufferLength++] = (uint8_t)(pValue >> (n * 8));
419 }
420 break;
421 }
422 }
423 } else if (tmpState == COMPOUND_TEXT_SINGLE_0) {
424 tmpTargetBuffer[tmpTargetBufferLength++] = (uint8_t)sourceChar;
425 } else {
426 pValueLength = ucnv_MBCSFromUChar32(myConverterData->myConverterArray[currentState], sourceChar, &pValue, useFallback);
427 if (pValueLength > 0) {
428 for (n = (pValueLength - 1); n >= 0; n--) {
429 tmpTargetBuffer[tmpTargetBufferLength++] = (uint8_t)(pValue >> (n * 8));
430 }
431 }
432 }
433
434 for (i = 0; i < tmpTargetBufferLength; i++) {
435 if (target < targetLimit) {
436 *target++ = tmpTargetBuffer[i];
437 } else {
438 *err = U_BUFFER_OVERFLOW_ERROR;
439 break;
440 }
441 }
442
443 if (*err == U_BUFFER_OVERFLOW_ERROR) {
444 for (; i < tmpTargetBufferLength; i++) {
445 args->converter->charErrorBuffer[args->converter->charErrorBufferLength++] = tmpTargetBuffer[i];
446 }
447 }
448 } else {
449 *err = U_BUFFER_OVERFLOW_ERROR;
450 break;
451 }
452 }
453
454 /*save the state and return */
455 myConverterData->state = currentState;
456 args->source = source;
457 args->target = (char*)target;
458 }
459
460
461 static void
462 UConverter_toUnicode_CompoundText_OFFSETS(UConverterToUnicodeArgs *args,
463 UErrorCode* err){
464 const char *mySource = (char *) args->source;
465 UChar *myTarget = args->target;
466 const char *mySourceLimit = args->sourceLimit;
467 const char *tmpSourceLimit = mySourceLimit;
468 uint32_t mySourceChar = 0x0000;
469 COMPOUND_TEXT_CONVERTERS currentState, tmpState;
470 int32_t sourceOffset = 0;
471 UConverterDataCompoundText *myConverterData = (UConverterDataCompoundText *) args->converter->extraInfo;
472 UConverterSharedData* savedSharedData = NULL;
473
474 UConverterToUnicodeArgs subArgs;
475 int32_t minArgsSize;
476
477 /* set up the subconverter arguments */
478 if(args->size<sizeof(UConverterToUnicodeArgs)) {
479 minArgsSize = args->size;
480 } else {
481 minArgsSize = (int32_t)sizeof(UConverterToUnicodeArgs);
482 }
483
484 uprv_memcpy(&subArgs, args, minArgsSize);
485 subArgs.size = (uint16_t)minArgsSize;
486
487 currentState = tmpState = myConverterData->state;
488
489 while(mySource < mySourceLimit){
490 if(myTarget < args->targetLimit){
491 if (args->converter->toULength > 0) {
492 mySourceChar = args->converter->toUBytes[0];
493 } else {
494 mySourceChar = (uint8_t)*mySource;
495 }
496
497 if (mySourceChar == ESC_START) {
498 tmpState = findStateFromEscSeq(mySource, mySourceLimit, args->converter->toUBytes, args->converter->toULength, err);
499
500 if (*err == U_TRUNCATED_CHAR_FOUND) {
501 for (; mySource < mySourceLimit;) {
502 args->converter->toUBytes[args->converter->toULength++] = *mySource++;
503 }
504 *err = U_ZERO_ERROR;
505 break;
506 } else if (tmpState == INVALID) {
507 if (args->converter->toULength == 0) {
508 mySource++; /* skip over the 0x1b byte */
509 }
510 *err = U_ILLEGAL_CHAR_FOUND;
511 break;
512 }
513
514 if (tmpState != currentState) {
515 currentState = tmpState;
516 }
517
518 sourceOffset = uprv_strlen((char*)escSeqCompoundText[currentState]) - args->converter->toULength;
519
520 mySource += sourceOffset;
521
522 args->converter->toULength = 0;
523 }
524
525 if (currentState == COMPOUND_TEXT_SINGLE_0) {
526 while (mySource < mySourceLimit) {
527 if (*mySource == ESC_START) {
528 break;
529 }
530 if (myTarget < args->targetLimit) {
531 *myTarget++ = 0x00ff&(*mySource++);
532 } else {
533 *err = U_BUFFER_OVERFLOW_ERROR;
534 break;
535 }
536 }
537 } else if (mySource < mySourceLimit){
538 sourceOffset = findNextEsc(mySource, mySourceLimit);
539
540 tmpSourceLimit = mySource + sourceOffset;
541
542 subArgs.source = mySource;
543 subArgs.sourceLimit = tmpSourceLimit;
544 subArgs.target = myTarget;
545 savedSharedData = subArgs.converter->sharedData;
546 subArgs.converter->sharedData = myConverterData->myConverterArray[currentState];
547
548 ucnv_MBCSToUnicodeWithOffsets(&subArgs, err);
549
550 subArgs.converter->sharedData = savedSharedData;
551
552 mySource = subArgs.source;
553 myTarget = subArgs.target;
554
555 if (U_FAILURE(*err)) {
556 if(*err == U_BUFFER_OVERFLOW_ERROR) {
557 if(subArgs.converter->UCharErrorBufferLength > 0) {
558 uprv_memcpy(args->converter->UCharErrorBuffer, subArgs.converter->UCharErrorBuffer,
559 subArgs.converter->UCharErrorBufferLength);
560 }
561 args->converter->UCharErrorBufferLength=subArgs.converter->UCharErrorBufferLength;
562 subArgs.converter->UCharErrorBufferLength = 0;
563 }
564 break;
565 }
566 }
567 } else {
568 *err = U_BUFFER_OVERFLOW_ERROR;
569 break;
570 }
571 }
572 myConverterData->state = currentState;
573 args->target = myTarget;
574 args->source = mySource;
575 }
576
577 static void
578 _CompoundText_GetUnicodeSet(const UConverter *cnv,
579 const USetAdder *sa,
580 UConverterUnicodeSet which,
581 UErrorCode *pErrorCode) {
582 UConverterDataCompoundText *myConverterData = (UConverterDataCompoundText *)cnv->extraInfo;
583 int32_t i;
584
585 for (i = 1; i < NUM_OF_CONVERTERS; i++) {
586 ucnv_MBCSGetUnicodeSetForUnicode(myConverterData->myConverterArray[i], sa, which, pErrorCode);
587 }
588 sa->add(sa->set, 0x0000);
589 sa->add(sa->set, 0x0009);
590 sa->add(sa->set, 0x000A);
591 sa->addRange(sa->set, 0x0020, 0x007F);
592 sa->addRange(sa->set, 0x00A0, 0x00FF);
593 }
594
595 static const UConverterImpl _CompoundTextImpl = {
596
597 UCNV_COMPOUND_TEXT,
598
599 NULL,
600 NULL,
601
602 _CompoundTextOpen,
603 _CompoundTextClose,
604 _CompoundTextReset,
605
606 UConverter_toUnicode_CompoundText_OFFSETS,
607 UConverter_toUnicode_CompoundText_OFFSETS,
608 UConverter_fromUnicode_CompoundText_OFFSETS,
609 UConverter_fromUnicode_CompoundText_OFFSETS,
610 NULL,
611
612 NULL,
613 _CompoundTextgetName,
614 NULL,
615 NULL,
616 _CompoundText_GetUnicodeSet
617 };
618 static const UConverterStaticData _CompoundTextStaticData = {
619 sizeof(UConverterStaticData),
620 "COMPOUND_TEXT",
621 0,
622 UCNV_IBM,
623 UCNV_COMPOUND_TEXT,
624 1,
625 6,
626 { 0xef, 0, 0, 0 },
627 1,
628 FALSE,
629 FALSE,
630 0,
631 0,
632 { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 } /* reserved */
633 };
634 const UConverterSharedData _CompoundTextData = {
635 sizeof(UConverterSharedData),
636 ~((uint32_t) 0),
637 NULL,
638 NULL,
639 &_CompoundTextStaticData,
640 FALSE,
641 &_CompoundTextImpl,
642 0
643 };
644
645 #endif /* #if !UCONFIG_NO_LEGACY_CONVERSION */

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