Check in the pristine copy of ICU 4.6...

icu46/source/common/ucnvhz.c

+/*  
+**********************************************************************
+*   Copyright (C) 2000-2009, International Business Machines
+*   Corporation and others.  All Rights Reserved.
+**********************************************************************
+*   file name:  ucnvhz.c
+*   encoding:   US-ASCII
+*   tab size:   8 (not used)
+*   indentation:4
+*
+*   created on: 2000oct16
+*   created by: Ram Viswanadha
+*   10/31/2000  Ram     Implemented offsets logic function
+*   
+*/
+
+#include "unicode/utypes.h"
+
+#if !UCONFIG_NO_CONVERSION && !UCONFIG_NO_LEGACY_CONVERSION
+
+#include "cmemory.h"
+#include "unicode/ucnv.h"
+#include "unicode/ucnv_cb.h"
+#include "unicode/uset.h"
+#include "ucnv_bld.h"
+#include "ucnv_cnv.h"
+#include "ucnv_imp.h"
+
+#define UCNV_TILDE 0x7E          /* ~ */
+#define UCNV_OPEN_BRACE 0x7B     /* { */
+#define UCNV_CLOSE_BRACE 0x7D   /* } */
+#define SB_ESCAPE    "\x7E\x7D"
+#define DB_ESCAPE    "\x7E\x7B"
+#define TILDE_ESCAPE "\x7E\x7E"
+#define ESC_LEN       2
+
+
+#define CONCAT_ESCAPE_MACRO( args, targetIndex,targetLength,strToAppend, err, len,sourceIndex){                             \
+    while(len-->0){                                                                                                         \
+        if(targetIndex < targetLength){                                                                                     \
+            args->target[targetIndex] = (unsigned char) *strToAppend;                                                       \
+            if(args->offsets!=NULL){                                                                                        \
+                *(offsets++) = sourceIndex-1;                                                                               \
+            }                                                                                                               \
+            targetIndex++;                                                                                                  \
+        }                                                                                                                   \
+        else{                                                                                                               \
+            args->converter->charErrorBuffer[(int)args->converter->charErrorBufferLength++] = (unsigned char) *strToAppend; \
+            *err =U_BUFFER_OVERFLOW_ERROR;                                                                                  \
+        }                                                                                                                   \
+        strToAppend++;                                                                                                      \
+    }                                                                                                                       \
+}
+
+
+typedef struct{
+    UConverter* gbConverter;
+    int32_t targetIndex;
+    int32_t sourceIndex;
+    UBool isEscapeAppended;
+    UBool isStateDBCS;
+    UBool isTargetUCharDBCS;
+    UBool isEmptySegment;
+}UConverterDataHZ;
+
+
+
+static void 
+_HZOpen(UConverter *cnv, UConverterLoadArgs *pArgs, UErrorCode *errorCode){
+    UConverter *gbConverter;
+    if(pArgs->onlyTestIsLoadable) {
+        ucnv_canCreateConverter("GBK", errorCode);  /* errorCode carries result */
+        return;
+    }
+    gbConverter = ucnv_open("GBK", errorCode);
+    if(U_FAILURE(*errorCode)) {
+        return;
+    }
+    cnv->toUnicodeStatus = 0;
+    cnv->fromUnicodeStatus= 0;
+    cnv->mode=0;
+    cnv->fromUChar32=0x0000;
+    cnv->extraInfo = uprv_malloc(sizeof(UConverterDataHZ));
+    if(cnv->extraInfo != NULL){
+        uprv_memset(cnv->extraInfo, 0, sizeof(UConverterDataHZ));
+        ((UConverterDataHZ*)cnv->extraInfo)->gbConverter = gbConverter;
+    }
+    else {
+        ucnv_close(gbConverter);
+        *errorCode = U_MEMORY_ALLOCATION_ERROR;
+        return;
+    }
+}
+
+static void 
+_HZClose(UConverter *cnv){
+    if(cnv->extraInfo != NULL) {
+        ucnv_close (((UConverterDataHZ *) (cnv->extraInfo))->gbConverter);
+        if(!cnv->isExtraLocal) {
+            uprv_free(cnv->extraInfo);
+        }
+        cnv->extraInfo = NULL;
+    }
+}
+
+static void 
+_HZReset(UConverter *cnv, UConverterResetChoice choice){
+    if(choice<=UCNV_RESET_TO_UNICODE) {
+        cnv->toUnicodeStatus = 0;
+        cnv->mode=0;
+        if(cnv->extraInfo != NULL){
+            ((UConverterDataHZ*)cnv->extraInfo)->isStateDBCS = FALSE;
+            ((UConverterDataHZ*)cnv->extraInfo)->isEmptySegment = FALSE;
+        }
+    }
+    if(choice!=UCNV_RESET_TO_UNICODE) {
+        cnv->fromUnicodeStatus= 0;
+        cnv->fromUChar32=0x0000; 
+        if(cnv->extraInfo != NULL){
+            ((UConverterDataHZ*)cnv->extraInfo)->isEscapeAppended = FALSE;
+            ((UConverterDataHZ*)cnv->extraInfo)->targetIndex = 0;
+            ((UConverterDataHZ*)cnv->extraInfo)->sourceIndex = 0;
+            ((UConverterDataHZ*)cnv->extraInfo)->isTargetUCharDBCS = FALSE;
+        }
+    }
+}
+
+/**************************************HZ Encoding*************************************************
+* Rules for HZ encoding
+* 
+*   In ASCII mode, a byte is interpreted as an ASCII character, unless a
+*   '~' is encountered. The character '~' is an escape character. By
+*   convention, it must be immediately followed ONLY by '~', '{' or '\n'
+*   (<LF>), with the following special meaning.
+
+*   1. The escape sequence '~~' is interpreted as a '~'.
+*   2. The escape-to-GB sequence '~{' switches the mode from ASCII to GB.
+*   3. The escape sequence '~\n' is a line-continuation marker to be
+*     consumed with no output produced.
+*   In GB mode, characters are interpreted two bytes at a time as (pure)
+*   GB codes until the escape-from-GB code '~}' is read. This code
+*   switches the mode from GB back to ASCII.  (Note that the escape-
+*   from-GB code '~}' ($7E7D) is outside the defined GB range.)
+*
+*   Source: RFC 1842
+*
+*   Note that the formal syntax in RFC 1842 is invalid. I assume that the
+*   intended definition of single-byte-segment is as follows (pedberg):
+*   single-byte-segment = single-byte-seq 1*single-byte-char
+*/
+
+
+static void 
+UConverter_toUnicode_HZ_OFFSETS_LOGIC(UConverterToUnicodeArgs *args,
+                                                            UErrorCode* err){
+    char tempBuf[2];
+    const char *mySource = ( char *) args->source;
+    UChar *myTarget = args->target;
+    const char *mySourceLimit = args->sourceLimit;
+    UChar32 targetUniChar = 0x0000;
+    int32_t mySourceChar = 0x0000;
+    UConverterDataHZ* myData=(UConverterDataHZ*)(args->converter->extraInfo);
+    tempBuf[0]=0; 
+    tempBuf[1]=0;
+
+    /* Calling code already handles this situation. */
+    /*if ((args->converter == NULL) || (args->targetLimit < args->target) || (mySourceLimit < args->source)){
+        *err = U_ILLEGAL_ARGUMENT_ERROR;
+        return;
+    }*/
+    
+    while(mySource< mySourceLimit){
+        
+        if(myTarget < args->targetLimit){
+            
+            mySourceChar= (unsigned char) *mySource++;
+
+            if(args->converter->mode == UCNV_TILDE) {
+                /* second byte after ~ */
+                args->converter->mode=0;
+                switch(mySourceChar) {
+                case 0x0A:
+                    /* no output for ~\n (line-continuation marker) */
+                    continue;
+                case UCNV_TILDE:
+                    if(args->offsets) {
+                        args->offsets[myTarget - args->target]=(int32_t)(mySource - args->source - 2);
+                    }
+                    *(myTarget++)=(UChar)mySourceChar;
+                    myData->isEmptySegment = FALSE;
+                    continue;
+                case UCNV_OPEN_BRACE:
+                case UCNV_CLOSE_BRACE:
+                    myData->isStateDBCS = (mySourceChar == UCNV_OPEN_BRACE);
+                    if (myData->isEmptySegment) {
+                        myData->isEmptySegment = FALSE; /* we are handling it, reset to avoid future spurious errors */
+                        *err = U_ILLEGAL_ESCAPE_SEQUENCE;
+                        args->converter->toUCallbackReason = UCNV_IRREGULAR;
+                        args->converter->toUBytes[0] = UCNV_TILDE;
+                        args->converter->toUBytes[1] = mySourceChar;
+                        args->converter->toULength = 2;
+                        args->target = myTarget;
+                        args->source = mySource;
+                        return;
+                    }
+                    myData->isEmptySegment = TRUE;
+                    continue;
+                default:
+                     /* if the first byte is equal to TILDE and the trail byte
+                     * is not a valid byte then it is an error condition
+                     */
+                    /*
+                     * Ticket 5691: consistent illegal sequences:
+                     * - We include at least the first byte in the illegal sequence.
+                     * - If any of the non-initial bytes could be the start of a character,
+                     *   we stop the illegal sequence before the first one of those.
+                     */
+                    myData->isEmptySegment = FALSE; /* different error here, reset this to avoid spurious future error */
+                    *err = U_ILLEGAL_ESCAPE_SEQUENCE;
+                    args->converter->toUBytes[0] = UCNV_TILDE;
+                    if( myData->isStateDBCS ?
+                            (0x21 <= mySourceChar && mySourceChar <= 0x7e) :
+                            mySourceChar <= 0x7f
+                    ) {
+                        /* The current byte could be the start of a character: Back it out. */
+                        args->converter->toULength = 1;
+                        --mySource;
+                    } else {
+                        /* Include the current byte in the illegal sequence. */
+                        args->converter->toUBytes[1] = mySourceChar;
+                        args->converter->toULength = 2;
+                    }
+                    args->target = myTarget;
+                    args->source = mySource;
+                    return;
+                }
+            } else if(myData->isStateDBCS) {
+                if(args->converter->toUnicodeStatus == 0x00){
+                    /* lead byte */
+                    if(mySourceChar == UCNV_TILDE) {
+                        args->converter->mode = UCNV_TILDE;
+                    } else {
+                        /* add another bit to distinguish a 0 byte from not having seen a lead byte */
+                        args->converter->toUnicodeStatus = (uint32_t) (mySourceChar | 0x100);
+                        myData->isEmptySegment = FALSE; /* the segment has something, either valid or will produce a different error, so reset this */
+                    }
+                    continue;
+                }
+                else{
+                    /* trail byte */
+                    int leadIsOk, trailIsOk;
+                    uint32_t leadByte = args->converter->toUnicodeStatus & 0xff;
+                    targetUniChar = 0xffff;
+                    /*
+                     * Ticket 5691: consistent illegal sequences:
+                     * - We include at least the first byte in the illegal sequence.
+                     * - If any of the non-initial bytes could be the start of a character,
+                     *   we stop the illegal sequence before the first one of those.
+                     *
+                     * In HZ DBCS, if the second byte is in the 21..7e range,
+                     * we report only the first byte as the illegal sequence.
+                     * Otherwise we convert or report the pair of bytes.
+                     */
+                    leadIsOk = (uint8_t)(leadByte - 0x21) <= (0x7d - 0x21);
+                    trailIsOk = (uint8_t)(mySourceChar - 0x21) <= (0x7e - 0x21);
+                    if (leadIsOk && trailIsOk) {
+                        tempBuf[0] = (char) (leadByte+0x80) ;
+                        tempBuf[1] = (char) (mySourceChar+0x80);
+                        targetUniChar = ucnv_MBCSSimpleGetNextUChar(myData->gbConverter->sharedData,
+                            tempBuf, 2, args->converter->useFallback);
+                        mySourceChar= (leadByte << 8) | mySourceChar;
+                    } else if (trailIsOk) {
+                        /* report a single illegal byte and continue with the following DBCS starter byte */
+                        --mySource;
+                        mySourceChar = (int32_t)leadByte;
+                    } else {
+                        /* report a pair of illegal bytes if the second byte is not a DBCS starter */
+                        /* add another bit so that the code below writes 2 bytes in case of error */
+                        mySourceChar= 0x10000 | (leadByte << 8) | mySourceChar;
+                    }
+                    args->converter->toUnicodeStatus =0x00;
+                }
+            }
+            else{
+                if(mySourceChar == UCNV_TILDE) {
+                    args->converter->mode = UCNV_TILDE;
+                    continue;
+                } else if(mySourceChar <= 0x7f) {
+                    targetUniChar = (UChar)mySourceChar;  /* ASCII */
+                    myData->isEmptySegment = FALSE; /* the segment has something valid */
+                } else {
+                    targetUniChar = 0xffff;
+                    myData->isEmptySegment = FALSE; /* different error here, reset this to avoid spurious future error */
+                }
+            }
+            if(targetUniChar < 0xfffe){
+                if(args->offsets) {
+                    args->offsets[myTarget - args->target]=(int32_t)(mySource - args->source - 1-(myData->isStateDBCS));
+                }
+
+                *(myTarget++)=(UChar)targetUniChar;
+            }
+            else /* targetUniChar>=0xfffe */ {
+                if(targetUniChar == 0xfffe){
+                    *err = U_INVALID_CHAR_FOUND;
+                }
+                else{
+                    *err = U_ILLEGAL_CHAR_FOUND;
+                }
+                if(mySourceChar > 0xff){
+                    args->converter->toUBytes[0] = (uint8_t)(mySourceChar >> 8);
+                    args->converter->toUBytes[1] = (uint8_t)mySourceChar;
+                    args->converter->toULength=2;
+                }
+                else{
+                    args->converter->toUBytes[0] = (uint8_t)mySourceChar;
+                    args->converter->toULength=1;
+                }
+                break;
+            }
+        }
+        else{
+            *err =U_BUFFER_OVERFLOW_ERROR;
+            break;
+        }
+    }
+
+    args->target = myTarget;
+    args->source = mySource;
+}
+
+
+static void 
+UConverter_fromUnicode_HZ_OFFSETS_LOGIC (UConverterFromUnicodeArgs * args,
+                                                      UErrorCode * err){
+    const UChar *mySource = args->source;
+    char *myTarget = args->target;
+    int32_t* offsets = args->offsets;
+    int32_t mySourceIndex = 0;
+    int32_t myTargetIndex = 0;
+    int32_t targetLength = (int32_t)(args->targetLimit - myTarget);
+    int32_t mySourceLength = (int32_t)(args->sourceLimit - args->source);
+    int32_t length=0;
+    uint32_t targetUniChar = 0x0000;
+    UChar32 mySourceChar = 0x0000;
+    UConverterDataHZ *myConverterData=(UConverterDataHZ*)args->converter->extraInfo;
+    UBool isTargetUCharDBCS = (UBool) myConverterData->isTargetUCharDBCS;
+    UBool oldIsTargetUCharDBCS = isTargetUCharDBCS;
+    int len =0;
+    const char* escSeq=NULL;
+    
+    /* Calling code already handles this situation. */
+    /*if ((args->converter == NULL) || (args->targetLimit < myTarget) || (args->sourceLimit < args->source)){
+        *err = U_ILLEGAL_ARGUMENT_ERROR;
+        return;
+    }*/
+    if(args->converter->fromUChar32!=0 && myTargetIndex < targetLength) {
+        goto getTrail;
+    }
+    /*writing the char to the output stream */
+    while (mySourceIndex < mySourceLength){
+        targetUniChar = missingCharMarker;
+        if (myTargetIndex < targetLength){
+            
+            mySourceChar = (UChar) mySource[mySourceIndex++];
+            
+
+            oldIsTargetUCharDBCS = isTargetUCharDBCS;
+            if(mySourceChar ==UCNV_TILDE){
+                /*concatEscape(args, &myTargetIndex, &targetLength,"\x7E\x7E",err,2,&mySourceIndex);*/
+                len = ESC_LEN;
+                escSeq = TILDE_ESCAPE;
+                CONCAT_ESCAPE_MACRO(args, myTargetIndex, targetLength, escSeq,err,len,mySourceIndex);
+                continue;
+            } else if(mySourceChar <= 0x7f) {
+                length = 1;
+                targetUniChar = mySourceChar;
+            } else {
+                length= ucnv_MBCSFromUChar32(myConverterData->gbConverter->sharedData,
+                    mySourceChar,&targetUniChar,args->converter->useFallback);
+                /* we can only use lead bytes 21..7D and trail bytes 21..7E */
+                if( length == 2 &&
+                    (uint16_t)(targetUniChar - 0xa1a1) <= (0xfdfe - 0xa1a1) &&
+                    (uint8_t)(targetUniChar - 0xa1) <= (0xfe - 0xa1)
+                ) {
+                    targetUniChar -= 0x8080;
+                } else {
+                    targetUniChar = missingCharMarker;
+                }
+            }
+            if (targetUniChar != missingCharMarker){
+               myConverterData->isTargetUCharDBCS = isTargetUCharDBCS = (UBool)(targetUniChar>0x00FF);     
+                 if(oldIsTargetUCharDBCS != isTargetUCharDBCS || !myConverterData->isEscapeAppended ){
+                    /*Shifting from a double byte to single byte mode*/
+                    if(!isTargetUCharDBCS){
+                        len =ESC_LEN;
+                        escSeq = SB_ESCAPE;
+                        CONCAT_ESCAPE_MACRO(args, myTargetIndex, targetLength, escSeq,err,len,mySourceIndex);
+                        myConverterData->isEscapeAppended = TRUE;
+                    }
+                    else{ /* Shifting from a single byte to double byte mode*/
+                        len =ESC_LEN;
+                        escSeq = DB_ESCAPE;
+                        CONCAT_ESCAPE_MACRO(args, myTargetIndex, targetLength, escSeq,err,len,mySourceIndex);
+                        myConverterData->isEscapeAppended = TRUE;
+                        
+                    }
+                }
+            
+                if(isTargetUCharDBCS){
+                    if( myTargetIndex <targetLength){
+                        myTarget[myTargetIndex++] =(char) (targetUniChar >> 8);
+                        if(offsets){
+                            *(offsets++) = mySourceIndex-1;
+                        }
+                        if(myTargetIndex < targetLength){
+                            myTarget[myTargetIndex++] =(char) targetUniChar;
+                            if(offsets){
+                                *(offsets++) = mySourceIndex-1;
+                            }
+                        }else{
+                            args->converter->charErrorBuffer[args->converter->charErrorBufferLength++] = (char) targetUniChar;
+                            *err = U_BUFFER_OVERFLOW_ERROR;
+                        } 
+                    }else{
+                        args->converter->charErrorBuffer[args->converter->charErrorBufferLength++] =(char) (targetUniChar >> 8);
+                        args->converter->charErrorBuffer[args->converter->charErrorBufferLength++] = (char) targetUniChar;
+                        *err = U_BUFFER_OVERFLOW_ERROR;
+                    }
+
+                }else{
+                    if( myTargetIndex <targetLength){
+                        myTarget[myTargetIndex++] = (char) (targetUniChar );
+                        if(offsets){
+                            *(offsets++) = mySourceIndex-1;
+                        }
+                        
+                    }else{
+                        args->converter->charErrorBuffer[args->converter->charErrorBufferLength++] = (char) targetUniChar;
+                        *err = U_BUFFER_OVERFLOW_ERROR;
+                    }
+                }
+
+            }
+            else{
+                /* oops.. the code point is unassigned */
+                /*Handle surrogates */
+                /*check if the char is a First surrogate*/
+                if(UTF_IS_SURROGATE(mySourceChar)) {
+                    if(UTF_IS_SURROGATE_FIRST(mySourceChar)) {
+                        args->converter->fromUChar32=mySourceChar;
+getTrail:
+                        /*look ahead to find the trail surrogate*/
+                        if(mySourceIndex <  mySourceLength) {
+                            /* test the following code unit */
+                            UChar trail=(UChar) args->source[mySourceIndex];
+                            if(UTF_IS_SECOND_SURROGATE(trail)) {
+                                ++mySourceIndex;
+                                mySourceChar=UTF16_GET_PAIR_VALUE(args->converter->fromUChar32, trail);
+                                args->converter->fromUChar32=0x00;
+                                /* there are no surrogates in GB2312*/
+                                *err = U_INVALID_CHAR_FOUND;
+                                /* exit this condition tree */
+                            } else {
+                                /* this is an unmatched lead code unit (1st surrogate) */
+                                /* callback(illegal) */
+                                *err=U_ILLEGAL_CHAR_FOUND;
+                            }
+                        } else {
+                            /* no more input */
+                            *err = U_ZERO_ERROR;
+                        }
+                    } else {
+                        /* this is an unmatched trail code unit (2nd surrogate) */
+                        /* callback(illegal) */
+                        *err=U_ILLEGAL_CHAR_FOUND;
+                    }
+                } else {
+                    /* callback(unassigned) for a BMP code point */
+                    *err = U_INVALID_CHAR_FOUND;
+                }
+
+                args->converter->fromUChar32=mySourceChar;
+                break;
+            }
+        }
+        else{
+            *err = U_BUFFER_OVERFLOW_ERROR;
+            break;
+        }
+        targetUniChar=missingCharMarker;
+    }
+
+    args->target += myTargetIndex;
+    args->source += mySourceIndex;
+    myConverterData->isTargetUCharDBCS = isTargetUCharDBCS;
+}
+
+static void
+_HZ_WriteSub(UConverterFromUnicodeArgs *args, int32_t offsetIndex, UErrorCode *err) {
+    UConverter *cnv = args->converter;
+    UConverterDataHZ *convData=(UConverterDataHZ *) cnv->extraInfo;
+    char *p;
+    char buffer[4];
+    p = buffer;
+    
+    if( convData->isTargetUCharDBCS){
+        *p++= UCNV_TILDE;
+        *p++= UCNV_CLOSE_BRACE;
+        convData->isTargetUCharDBCS=FALSE;
+    }
+    *p++= (char)cnv->subChars[0];
+
+    ucnv_cbFromUWriteBytes(args,
+                           buffer, (int32_t)(p - buffer),
+                           offsetIndex, err);
+}
+
+/*
+ * Structure for cloning an HZ converter into a single memory block.
+ * ucnv_safeClone() of the HZ converter will align the entire cloneHZStruct,
+ * and then ucnv_safeClone() of the sub-converter may additionally align
+ * subCnv inside the cloneHZStruct, for which we need the deadSpace after
+ * subCnv. This is because UAlignedMemory may be larger than the actually
+ * necessary alignment size for the platform.
+ * The other cloneHZStruct fields will not be moved around,
+ * and are aligned properly with cloneHZStruct's alignment.
+ */
+struct cloneHZStruct
+{
+    UConverter cnv;
+    UConverter subCnv;
+    UAlignedMemory deadSpace;
+    UConverterDataHZ mydata;
+};
+
+
+static UConverter * 
+_HZ_SafeClone(const UConverter *cnv, 
+              void *stackBuffer, 
+              int32_t *pBufferSize, 
+              UErrorCode *status)
+{
+    struct cloneHZStruct * localClone;
+    int32_t size, bufferSizeNeeded = sizeof(struct cloneHZStruct);
+
+    if (U_FAILURE(*status)){
+        return 0;
+    }
+
+    if (*pBufferSize == 0){ /* 'preflighting' request - set needed size into *pBufferSize */
+        *pBufferSize = bufferSizeNeeded;
+        return 0;
+    }
+
+    localClone = (struct cloneHZStruct *)stackBuffer;
+    /* ucnv.c/ucnv_safeClone() copied the main UConverter already */
+
+    uprv_memcpy(&localClone->mydata, cnv->extraInfo, sizeof(UConverterDataHZ));
+    localClone->cnv.extraInfo = &localClone->mydata;
+    localClone->cnv.isExtraLocal = TRUE;
+
+    /* deep-clone the sub-converter */
+    size = (int32_t)(sizeof(UConverter) + sizeof(UAlignedMemory)); /* include size of padding */
+    ((UConverterDataHZ*)localClone->cnv.extraInfo)->gbConverter =
+        ucnv_safeClone(((UConverterDataHZ*)cnv->extraInfo)->gbConverter, &localClone->subCnv, &size, status);
+
+    return &localClone->cnv;
+}
+
+static void
+_HZ_GetUnicodeSet(const UConverter *cnv,
+                  const USetAdder *sa,
+                  UConverterUnicodeSet which,
+                  UErrorCode *pErrorCode) {
+    /* HZ converts all of ASCII */
+    sa->addRange(sa->set, 0, 0x7f);
+
+    /* add all of the code points that the sub-converter handles */
+    ucnv_MBCSGetFilteredUnicodeSetForUnicode(
+        ((UConverterDataHZ*)cnv->extraInfo)->gbConverter->sharedData,
+        sa, which, UCNV_SET_FILTER_HZ,
+        pErrorCode);
+}
+
+static const UConverterImpl _HZImpl={
+
+    UCNV_HZ,
+    
+    NULL,
+    NULL,
+    
+    _HZOpen,
+    _HZClose,
+    _HZReset,
+    
+    UConverter_toUnicode_HZ_OFFSETS_LOGIC,
+    UConverter_toUnicode_HZ_OFFSETS_LOGIC,
+    UConverter_fromUnicode_HZ_OFFSETS_LOGIC,
+    UConverter_fromUnicode_HZ_OFFSETS_LOGIC,
+    NULL,
+    
+    NULL,
+    NULL,
+    _HZ_WriteSub,
+    _HZ_SafeClone,
+    _HZ_GetUnicodeSet
+};
+
+static const UConverterStaticData _HZStaticData={
+    sizeof(UConverterStaticData),
+        "HZ",
+         0, 
+         UCNV_IBM, 
+         UCNV_HZ, 
+         1, 
+         4,
+        { 0x1a, 0, 0, 0 },
+        1,
+        FALSE, 
+        FALSE,
+        0,
+        0,
+        { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 }, /* reserved */
+
+};
+            
+            
+const UConverterSharedData _HZData={
+    sizeof(UConverterSharedData),
+        ~((uint32_t) 0),
+        NULL, 
+        NULL, 
+        &_HZStaticData, 
+        FALSE, 
+        &_HZImpl, 
+        0
+};
+
+#endif /* #if !UCONFIG_NO_LEGACY_CONVERSION */