| Index: icu51/source/common/ucnvhz.c
|
| ===================================================================
|
| --- icu51/source/common/ucnvhz.c (revision 0)
|
| +++ icu51/source/common/ucnvhz.c (revision 0)
|
| @@ -0,0 +1,640 @@
|
| +/*
|
| +**********************************************************************
|
| +* Copyright (C) 2000-2011, 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 "unicode/utf16.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_calloc(1, sizeof(UConverterDataHZ));
|
| + if(cnv->extraInfo != NULL){
|
| + ((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(U16_IS_SURROGATE(mySourceChar)) {
|
| + if(U16_IS_SURROGATE_LEAD(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(U16_IS_TRAIL(trail)) {
|
| + ++mySourceIndex;
|
| + mySourceChar=U16_GET_SUPPLEMENTARY(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 */
|
|
|
| Property changes on: icu51/source/common/ucnvhz.c
|
| ___________________________________________________________________
|
| Added: svn:eol-style
|
| + LF
|
|
|
|
|