1/*
2**********************************************************************
3*   Copyright (C) 2000-2011, International Business Machines
4*   Corporation and others.  All Rights Reserved.
5**********************************************************************
6*   file name:  ucnvhz.c
7*   encoding:   US-ASCII
8*   tab size:   8 (not used)
9*   indentation:4
10*
11*   created on: 2000oct16
12*   created by: Ram Viswanadha
13*   10/31/2000  Ram     Implemented offsets logic function
14*
15*/
16
17#include "unicode/utypes.h"
18
19#if !UCONFIG_NO_CONVERSION && !UCONFIG_NO_LEGACY_CONVERSION
20
21#include "cmemory.h"
22#include "unicode/ucnv.h"
23#include "unicode/ucnv_cb.h"
24#include "unicode/uset.h"
25#include "unicode/utf16.h"
26#include "ucnv_bld.h"
27#include "ucnv_cnv.h"
28#include "ucnv_imp.h"
29
30#define UCNV_TILDE 0x7E          /* ~ */
31#define UCNV_OPEN_BRACE 0x7B     /* { */
32#define UCNV_CLOSE_BRACE 0x7D   /* } */
33#define SB_ESCAPE    "\x7E\x7D"
34#define DB_ESCAPE    "\x7E\x7B"
35#define TILDE_ESCAPE "\x7E\x7E"
36#define ESC_LEN       2
37
38
39#define CONCAT_ESCAPE_MACRO( args, targetIndex,targetLength,strToAppend, err, len,sourceIndex){                             \
40    while(len-->0){                                                                                                         \
41        if(targetIndex < targetLength){                                                                                     \
42            args->target[targetIndex] = (unsigned char) *strToAppend;                                                       \
43            if(args->offsets!=NULL){                                                                                        \
44                *(offsets++) = sourceIndex-1;                                                                               \
45            }                                                                                                               \
46            targetIndex++;                                                                                                  \
47        }                                                                                                                   \
48        else{                                                                                                               \
49            args->converter->charErrorBuffer[(int)args->converter->charErrorBufferLength++] = (unsigned char) *strToAppend; \
50            *err =U_BUFFER_OVERFLOW_ERROR;                                                                                  \
51        }                                                                                                                   \
52        strToAppend++;                                                                                                      \
53    }                                                                                                                       \
54}
55
56
57typedef struct{
58    UConverter* gbConverter;
59    int32_t targetIndex;
60    int32_t sourceIndex;
61    UBool isEscapeAppended;
62    UBool isStateDBCS;
63    UBool isTargetUCharDBCS;
64    UBool isEmptySegment;
65}UConverterDataHZ;
66
67
68
69static void
70_HZOpen(UConverter *cnv, UConverterLoadArgs *pArgs, UErrorCode *errorCode){
71    UConverter *gbConverter;
72    if(pArgs->onlyTestIsLoadable) {
73        ucnv_canCreateConverter("GBK", errorCode);  /* errorCode carries result */
74        return;
75    }
76    gbConverter = ucnv_open("GBK", errorCode);
77    if(U_FAILURE(*errorCode)) {
78        return;
79    }
80    cnv->toUnicodeStatus = 0;
81    cnv->fromUnicodeStatus= 0;
82    cnv->mode=0;
83    cnv->fromUChar32=0x0000;
84    cnv->extraInfo = uprv_calloc(1, sizeof(UConverterDataHZ));
85    if(cnv->extraInfo != NULL){
86        ((UConverterDataHZ*)cnv->extraInfo)->gbConverter = gbConverter;
87    }
88    else {
89        ucnv_close(gbConverter);
90        *errorCode = U_MEMORY_ALLOCATION_ERROR;
91        return;
92    }
93}
94
95static void
96_HZClose(UConverter *cnv){
97    if(cnv->extraInfo != NULL) {
98        ucnv_close (((UConverterDataHZ *) (cnv->extraInfo))->gbConverter);
99        if(!cnv->isExtraLocal) {
100            uprv_free(cnv->extraInfo);
101        }
102        cnv->extraInfo = NULL;
103    }
104}
105
106static void
107_HZReset(UConverter *cnv, UConverterResetChoice choice){
108    if(choice<=UCNV_RESET_TO_UNICODE) {
109        cnv->toUnicodeStatus = 0;
110        cnv->mode=0;
111        if(cnv->extraInfo != NULL){
112            ((UConverterDataHZ*)cnv->extraInfo)->isStateDBCS = FALSE;
113            ((UConverterDataHZ*)cnv->extraInfo)->isEmptySegment = FALSE;
114        }
115    }
116    if(choice!=UCNV_RESET_TO_UNICODE) {
117        cnv->fromUnicodeStatus= 0;
118        cnv->fromUChar32=0x0000;
119        if(cnv->extraInfo != NULL){
120            ((UConverterDataHZ*)cnv->extraInfo)->isEscapeAppended = FALSE;
121            ((UConverterDataHZ*)cnv->extraInfo)->targetIndex = 0;
122            ((UConverterDataHZ*)cnv->extraInfo)->sourceIndex = 0;
123            ((UConverterDataHZ*)cnv->extraInfo)->isTargetUCharDBCS = FALSE;
124        }
125    }
126}
127
128/**************************************HZ Encoding*************************************************
129* Rules for HZ encoding
130*
131*   In ASCII mode, a byte is interpreted as an ASCII character, unless a
132*   '~' is encountered. The character '~' is an escape character. By
133*   convention, it must be immediately followed ONLY by '~', '{' or '\n'
134*   (<LF>), with the following special meaning.
135
136*   1. The escape sequence '~~' is interpreted as a '~'.
137*   2. The escape-to-GB sequence '~{' switches the mode from ASCII to GB.
138*   3. The escape sequence '~\n' is a line-continuation marker to be
139*     consumed with no output produced.
140*   In GB mode, characters are interpreted two bytes at a time as (pure)
141*   GB codes until the escape-from-GB code '~}' is read. This code
142*   switches the mode from GB back to ASCII.  (Note that the escape-
143*   from-GB code '~}' ($7E7D) is outside the defined GB range.)
144*
145*   Source: RFC 1842
146*
147*   Note that the formal syntax in RFC 1842 is invalid. I assume that the
148*   intended definition of single-byte-segment is as follows (pedberg):
149*   single-byte-segment = single-byte-seq 1*single-byte-char
150*/
151
152
153static void
154UConverter_toUnicode_HZ_OFFSETS_LOGIC(UConverterToUnicodeArgs *args,
155                                                            UErrorCode* err){
156    char tempBuf[2];
157    const char *mySource = ( char *) args->source;
158    UChar *myTarget = args->target;
159    const char *mySourceLimit = args->sourceLimit;
160    UChar32 targetUniChar = 0x0000;
161    int32_t mySourceChar = 0x0000;
162    UConverterDataHZ* myData=(UConverterDataHZ*)(args->converter->extraInfo);
163    tempBuf[0]=0;
164    tempBuf[1]=0;
165
166    /* Calling code already handles this situation. */
167    /*if ((args->converter == NULL) || (args->targetLimit < args->target) || (mySourceLimit < args->source)){
168        *err = U_ILLEGAL_ARGUMENT_ERROR;
169        return;
170    }*/
171
172    while(mySource< mySourceLimit){
173
174        if(myTarget < args->targetLimit){
175
176            mySourceChar= (unsigned char) *mySource++;
177
178            if(args->converter->mode == UCNV_TILDE) {
179                /* second byte after ~ */
180                args->converter->mode=0;
181                switch(mySourceChar) {
182                case 0x0A:
183                    /* no output for ~\n (line-continuation marker) */
184                    continue;
185                case UCNV_TILDE:
186                    if(args->offsets) {
187                        args->offsets[myTarget - args->target]=(int32_t)(mySource - args->source - 2);
188                    }
189                    *(myTarget++)=(UChar)mySourceChar;
190                    myData->isEmptySegment = FALSE;
191                    continue;
192                case UCNV_OPEN_BRACE:
193                case UCNV_CLOSE_BRACE:
194                    myData->isStateDBCS = (mySourceChar == UCNV_OPEN_BRACE);
195                    if (myData->isEmptySegment) {
196                        myData->isEmptySegment = FALSE; /* we are handling it, reset to avoid future spurious errors */
197                        *err = U_ILLEGAL_ESCAPE_SEQUENCE;
198                        args->converter->toUCallbackReason = UCNV_IRREGULAR;
199                        args->converter->toUBytes[0] = UCNV_TILDE;
200                        args->converter->toUBytes[1] = mySourceChar;
201                        args->converter->toULength = 2;
202                        args->target = myTarget;
203                        args->source = mySource;
204                        return;
205                    }
206                    myData->isEmptySegment = TRUE;
207                    continue;
208                default:
209                     /* if the first byte is equal to TILDE and the trail byte
210                     * is not a valid byte then it is an error condition
211                     */
212                    /*
213                     * Ticket 5691: consistent illegal sequences:
214                     * - We include at least the first byte in the illegal sequence.
215                     * - If any of the non-initial bytes could be the start of a character,
216                     *   we stop the illegal sequence before the first one of those.
217                     */
218                    myData->isEmptySegment = FALSE; /* different error here, reset this to avoid spurious future error */
219                    *err = U_ILLEGAL_ESCAPE_SEQUENCE;
220                    args->converter->toUBytes[0] = UCNV_TILDE;
221                    if( myData->isStateDBCS ?
222                            (0x21 <= mySourceChar && mySourceChar <= 0x7e) :
223                            mySourceChar <= 0x7f
224                    ) {
225                        /* The current byte could be the start of a character: Back it out. */
226                        args->converter->toULength = 1;
227                        --mySource;
228                    } else {
229                        /* Include the current byte in the illegal sequence. */
230                        args->converter->toUBytes[1] = mySourceChar;
231                        args->converter->toULength = 2;
232                    }
233                    args->target = myTarget;
234                    args->source = mySource;
235                    return;
236                }
237            } else if(myData->isStateDBCS) {
238                if(args->converter->toUnicodeStatus == 0x00){
239                    /* lead byte */
240                    if(mySourceChar == UCNV_TILDE) {
241                        args->converter->mode = UCNV_TILDE;
242                    } else {
243                        /* add another bit to distinguish a 0 byte from not having seen a lead byte */
244                        args->converter->toUnicodeStatus = (uint32_t) (mySourceChar | 0x100);
245                        myData->isEmptySegment = FALSE; /* the segment has something, either valid or will produce a different error, so reset this */
246                    }
247                    continue;
248                }
249                else{
250                    /* trail byte */
251                    int leadIsOk, trailIsOk;
252                    uint32_t leadByte = args->converter->toUnicodeStatus & 0xff;
253                    targetUniChar = 0xffff;
254                    /*
255                     * Ticket 5691: consistent illegal sequences:
256                     * - We include at least the first byte in the illegal sequence.
257                     * - If any of the non-initial bytes could be the start of a character,
258                     *   we stop the illegal sequence before the first one of those.
259                     *
260                     * In HZ DBCS, if the second byte is in the 21..7e range,
261                     * we report only the first byte as the illegal sequence.
262                     * Otherwise we convert or report the pair of bytes.
263                     */
264                    leadIsOk = (uint8_t)(leadByte - 0x21) <= (0x7d - 0x21);
265                    trailIsOk = (uint8_t)(mySourceChar - 0x21) <= (0x7e - 0x21);
266                    if (leadIsOk && trailIsOk) {
267                        tempBuf[0] = (char) (leadByte+0x80) ;
268                        tempBuf[1] = (char) (mySourceChar+0x80);
269                        targetUniChar = ucnv_MBCSSimpleGetNextUChar(myData->gbConverter->sharedData,
270                            tempBuf, 2, args->converter->useFallback);
271                        mySourceChar= (leadByte << 8) | mySourceChar;
272                    } else if (trailIsOk) {
273                        /* report a single illegal byte and continue with the following DBCS starter byte */
274                        --mySource;
275                        mySourceChar = (int32_t)leadByte;
276                    } else {
277                        /* report a pair of illegal bytes if the second byte is not a DBCS starter */
278                        /* add another bit so that the code below writes 2 bytes in case of error */
279                        mySourceChar= 0x10000 | (leadByte << 8) | mySourceChar;
280                    }
281                    args->converter->toUnicodeStatus =0x00;
282                }
283            }
284            else{
285                if(mySourceChar == UCNV_TILDE) {
286                    args->converter->mode = UCNV_TILDE;
287                    continue;
288                } else if(mySourceChar <= 0x7f) {
289                    targetUniChar = (UChar)mySourceChar;  /* ASCII */
290                    myData->isEmptySegment = FALSE; /* the segment has something valid */
291                } else {
292                    targetUniChar = 0xffff;
293                    myData->isEmptySegment = FALSE; /* different error here, reset this to avoid spurious future error */
294                }
295            }
296            if(targetUniChar < 0xfffe){
297                if(args->offsets) {
298                    args->offsets[myTarget - args->target]=(int32_t)(mySource - args->source - 1-(myData->isStateDBCS));
299                }
300
301                *(myTarget++)=(UChar)targetUniChar;
302            }
303            else /* targetUniChar>=0xfffe */ {
304                if(targetUniChar == 0xfffe){
305                    *err = U_INVALID_CHAR_FOUND;
306                }
307                else{
308                    *err = U_ILLEGAL_CHAR_FOUND;
309                }
310                if(mySourceChar > 0xff){
311                    args->converter->toUBytes[0] = (uint8_t)(mySourceChar >> 8);
312                    args->converter->toUBytes[1] = (uint8_t)mySourceChar;
313                    args->converter->toULength=2;
314                }
315                else{
316                    args->converter->toUBytes[0] = (uint8_t)mySourceChar;
317                    args->converter->toULength=1;
318                }
319                break;
320            }
321        }
322        else{
323            *err =U_BUFFER_OVERFLOW_ERROR;
324            break;
325        }
326    }
327
328    args->target = myTarget;
329    args->source = mySource;
330}
331
332
333static void
334UConverter_fromUnicode_HZ_OFFSETS_LOGIC (UConverterFromUnicodeArgs * args,
335                                                      UErrorCode * err){
336    const UChar *mySource = args->source;
337    char *myTarget = args->target;
338    int32_t* offsets = args->offsets;
339    int32_t mySourceIndex = 0;
340    int32_t myTargetIndex = 0;
341    int32_t targetLength = (int32_t)(args->targetLimit - myTarget);
342    int32_t mySourceLength = (int32_t)(args->sourceLimit - args->source);
343    int32_t length=0;
344    uint32_t targetUniChar = 0x0000;
345    UChar32 mySourceChar = 0x0000;
346    UConverterDataHZ *myConverterData=(UConverterDataHZ*)args->converter->extraInfo;
347    UBool isTargetUCharDBCS = (UBool) myConverterData->isTargetUCharDBCS;
348    UBool oldIsTargetUCharDBCS = isTargetUCharDBCS;
349    int len =0;
350    const char* escSeq=NULL;
351
352    /* Calling code already handles this situation. */
353    /*if ((args->converter == NULL) || (args->targetLimit < myTarget) || (args->sourceLimit < args->source)){
354        *err = U_ILLEGAL_ARGUMENT_ERROR;
355        return;
356    }*/
357    if(args->converter->fromUChar32!=0 && myTargetIndex < targetLength) {
358        goto getTrail;
359    }
360    /*writing the char to the output stream */
361    while (mySourceIndex < mySourceLength){
362        targetUniChar = missingCharMarker;
363        if (myTargetIndex < targetLength){
364
365            mySourceChar = (UChar) mySource[mySourceIndex++];
366
367
368            oldIsTargetUCharDBCS = isTargetUCharDBCS;
369            if(mySourceChar ==UCNV_TILDE){
370                /*concatEscape(args, &myTargetIndex, &targetLength,"\x7E\x7E",err,2,&mySourceIndex);*/
371                len = ESC_LEN;
372                escSeq = TILDE_ESCAPE;
373                CONCAT_ESCAPE_MACRO(args, myTargetIndex, targetLength, escSeq,err,len,mySourceIndex);
374                continue;
375            } else if(mySourceChar <= 0x7f) {
376                length = 1;
377                targetUniChar = mySourceChar;
378            } else {
379                length= ucnv_MBCSFromUChar32(myConverterData->gbConverter->sharedData,
380                    mySourceChar,&targetUniChar,args->converter->useFallback);
381                /* we can only use lead bytes 21..7D and trail bytes 21..7E */
382                if( length == 2 &&
383                    (uint16_t)(targetUniChar - 0xa1a1) <= (0xfdfe - 0xa1a1) &&
384                    (uint8_t)(targetUniChar - 0xa1) <= (0xfe - 0xa1)
385                ) {
386                    targetUniChar -= 0x8080;
387                } else {
388                    targetUniChar = missingCharMarker;
389                }
390            }
391            if (targetUniChar != missingCharMarker){
392               myConverterData->isTargetUCharDBCS = isTargetUCharDBCS = (UBool)(targetUniChar>0x00FF);
393                 if(oldIsTargetUCharDBCS != isTargetUCharDBCS || !myConverterData->isEscapeAppended ){
394                    /*Shifting from a double byte to single byte mode*/
395                    if(!isTargetUCharDBCS){
396                        len =ESC_LEN;
397                        escSeq = SB_ESCAPE;
398                        CONCAT_ESCAPE_MACRO(args, myTargetIndex, targetLength, escSeq,err,len,mySourceIndex);
399                        myConverterData->isEscapeAppended = TRUE;
400                    }
401                    else{ /* Shifting from a single byte to double byte mode*/
402                        len =ESC_LEN;
403                        escSeq = DB_ESCAPE;
404                        CONCAT_ESCAPE_MACRO(args, myTargetIndex, targetLength, escSeq,err,len,mySourceIndex);
405                        myConverterData->isEscapeAppended = TRUE;
406
407                    }
408                }
409
410                if(isTargetUCharDBCS){
411                    if( myTargetIndex <targetLength){
412                        myTarget[myTargetIndex++] =(char) (targetUniChar >> 8);
413                        if(offsets){
414                            *(offsets++) = mySourceIndex-1;
415                        }
416                        if(myTargetIndex < targetLength){
417                            myTarget[myTargetIndex++] =(char) targetUniChar;
418                            if(offsets){
419                                *(offsets++) = mySourceIndex-1;
420                            }
421                        }else{
422                            args->converter->charErrorBuffer[args->converter->charErrorBufferLength++] = (char) targetUniChar;
423                            *err = U_BUFFER_OVERFLOW_ERROR;
424                        }
425                    }else{
426                        args->converter->charErrorBuffer[args->converter->charErrorBufferLength++] =(char) (targetUniChar >> 8);
427                        args->converter->charErrorBuffer[args->converter->charErrorBufferLength++] = (char) targetUniChar;
428                        *err = U_BUFFER_OVERFLOW_ERROR;
429                    }
430
431                }else{
432                    if( myTargetIndex <targetLength){
433                        myTarget[myTargetIndex++] = (char) (targetUniChar );
434                        if(offsets){
435                            *(offsets++) = mySourceIndex-1;
436                        }
437
438                    }else{
439                        args->converter->charErrorBuffer[args->converter->charErrorBufferLength++] = (char) targetUniChar;
440                        *err = U_BUFFER_OVERFLOW_ERROR;
441                    }
442                }
443
444            }
445            else{
446                /* oops.. the code point is unassigned */
447                /*Handle surrogates */
448                /*check if the char is a First surrogate*/
449                if(U16_IS_SURROGATE(mySourceChar)) {
450                    if(U16_IS_SURROGATE_LEAD(mySourceChar)) {
451                        args->converter->fromUChar32=mySourceChar;
452getTrail:
453                        /*look ahead to find the trail surrogate*/
454                        if(mySourceIndex <  mySourceLength) {
455                            /* test the following code unit */
456                            UChar trail=(UChar) args->source[mySourceIndex];
457                            if(U16_IS_TRAIL(trail)) {
458                                ++mySourceIndex;
459                                mySourceChar=U16_GET_SUPPLEMENTARY(args->converter->fromUChar32, trail);
460                                args->converter->fromUChar32=0x00;
461                                /* there are no surrogates in GB2312*/
462                                *err = U_INVALID_CHAR_FOUND;
463                                /* exit this condition tree */
464                            } else {
465                                /* this is an unmatched lead code unit (1st surrogate) */
466                                /* callback(illegal) */
467                                *err=U_ILLEGAL_CHAR_FOUND;
468                            }
469                        } else {
470                            /* no more input */
471                            *err = U_ZERO_ERROR;
472                        }
473                    } else {
474                        /* this is an unmatched trail code unit (2nd surrogate) */
475                        /* callback(illegal) */
476                        *err=U_ILLEGAL_CHAR_FOUND;
477                    }
478                } else {
479                    /* callback(unassigned) for a BMP code point */
480                    *err = U_INVALID_CHAR_FOUND;
481                }
482
483                args->converter->fromUChar32=mySourceChar;
484                break;
485            }
486        }
487        else{
488            *err = U_BUFFER_OVERFLOW_ERROR;
489            break;
490        }
491        targetUniChar=missingCharMarker;
492    }
493
494    args->target += myTargetIndex;
495    args->source += mySourceIndex;
496    myConverterData->isTargetUCharDBCS = isTargetUCharDBCS;
497}
498
499static void
500_HZ_WriteSub(UConverterFromUnicodeArgs *args, int32_t offsetIndex, UErrorCode *err) {
501    UConverter *cnv = args->converter;
502    UConverterDataHZ *convData=(UConverterDataHZ *) cnv->extraInfo;
503    char *p;
504    char buffer[4];
505    p = buffer;
506
507    if( convData->isTargetUCharDBCS){
508        *p++= UCNV_TILDE;
509        *p++= UCNV_CLOSE_BRACE;
510        convData->isTargetUCharDBCS=FALSE;
511    }
512    *p++= (char)cnv->subChars[0];
513
514    ucnv_cbFromUWriteBytes(args,
515                           buffer, (int32_t)(p - buffer),
516                           offsetIndex, err);
517}
518
519/*
520 * Structure for cloning an HZ converter into a single memory block.
521 * ucnv_safeClone() of the HZ converter will align the entire cloneHZStruct,
522 * and then ucnv_safeClone() of the sub-converter may additionally align
523 * subCnv inside the cloneHZStruct, for which we need the deadSpace after
524 * subCnv. This is because UAlignedMemory may be larger than the actually
525 * necessary alignment size for the platform.
526 * The other cloneHZStruct fields will not be moved around,
527 * and are aligned properly with cloneHZStruct's alignment.
528 */
529struct cloneHZStruct
530{
531    UConverter cnv;
532    UConverter subCnv;
533    UAlignedMemory deadSpace;
534    UConverterDataHZ mydata;
535};
536
537
538static UConverter *
539_HZ_SafeClone(const UConverter *cnv,
540              void *stackBuffer,
541              int32_t *pBufferSize,
542              UErrorCode *status)
543{
544    struct cloneHZStruct * localClone;
545    int32_t size, bufferSizeNeeded = sizeof(struct cloneHZStruct);
546
547    if (U_FAILURE(*status)){
548        return 0;
549    }
550
551    if (*pBufferSize == 0){ /* 'preflighting' request - set needed size into *pBufferSize */
552        *pBufferSize = bufferSizeNeeded;
553        return 0;
554    }
555
556    localClone = (struct cloneHZStruct *)stackBuffer;
557    /* ucnv.c/ucnv_safeClone() copied the main UConverter already */
558
559    uprv_memcpy(&localClone->mydata, cnv->extraInfo, sizeof(UConverterDataHZ));
560    localClone->cnv.extraInfo = &localClone->mydata;
561    localClone->cnv.isExtraLocal = TRUE;
562
563    /* deep-clone the sub-converter */
564    size = (int32_t)(sizeof(UConverter) + sizeof(UAlignedMemory)); /* include size of padding */
565    ((UConverterDataHZ*)localClone->cnv.extraInfo)->gbConverter =
566        ucnv_safeClone(((UConverterDataHZ*)cnv->extraInfo)->gbConverter, &localClone->subCnv, &size, status);
567
568    return &localClone->cnv;
569}
570
571static void
572_HZ_GetUnicodeSet(const UConverter *cnv,
573                  const USetAdder *sa,
574                  UConverterUnicodeSet which,
575                  UErrorCode *pErrorCode) {
576    /* HZ converts all of ASCII */
577    sa->addRange(sa->set, 0, 0x7f);
578
579    /* add all of the code points that the sub-converter handles */
580    ucnv_MBCSGetFilteredUnicodeSetForUnicode(
581        ((UConverterDataHZ*)cnv->extraInfo)->gbConverter->sharedData,
582        sa, which, UCNV_SET_FILTER_HZ,
583        pErrorCode);
584}
585
586static const UConverterImpl _HZImpl={
587
588    UCNV_HZ,
589
590    NULL,
591    NULL,
592
593    _HZOpen,
594    _HZClose,
595    _HZReset,
596
597    UConverter_toUnicode_HZ_OFFSETS_LOGIC,
598    UConverter_toUnicode_HZ_OFFSETS_LOGIC,
599    UConverter_fromUnicode_HZ_OFFSETS_LOGIC,
600    UConverter_fromUnicode_HZ_OFFSETS_LOGIC,
601    NULL,
602
603    NULL,
604    NULL,
605    _HZ_WriteSub,
606    _HZ_SafeClone,
607    _HZ_GetUnicodeSet
608};
609
610static const UConverterStaticData _HZStaticData={
611    sizeof(UConverterStaticData),
612        "HZ",
613         0,
614         UCNV_IBM,
615         UCNV_HZ,
616         1,
617         4,
618        { 0x1a, 0, 0, 0 },
619        1,
620        FALSE,
621        FALSE,
622        0,
623        0,
624        { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 }, /* reserved */
625
626};
627
628
629const UConverterSharedData _HZData={
630    sizeof(UConverterSharedData),
631        ~((uint32_t) 0),
632        NULL,
633        NULL,
634        &_HZStaticData,
635        FALSE,
636        &_HZImpl,
637        0
638};
639
640#endif /* #if !UCONFIG_NO_LEGACY_CONVERSION */
641