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Diffstat (limited to 'intl/icu/source/common/ucnv_ct.c')
| -rw-r--r-- | intl/icu/source/common/ucnv_ct.c | 637 |
1 files changed, 637 insertions, 0 deletions
diff --git a/intl/icu/source/common/ucnv_ct.c b/intl/icu/source/common/ucnv_ct.c new file mode 100644 index 000000000..f76919c4a --- /dev/null +++ b/intl/icu/source/common/ucnv_ct.c @@ -0,0 +1,637 @@ +// Copyright (C) 2016 and later: Unicode, Inc. and others. +// License & terms of use: http://www.unicode.org/copyright.html +/* +********************************************************************** +* Copyright (C) 2010-2015, International Business Machines +* Corporation and others. All Rights Reserved. +********************************************************************** +* file name: ucnv_ct.c +* encoding: US-ASCII +* tab size: 8 (not used) +* indentation:4 +* +* created on: 2010Dec09 +* created by: Michael Ow +*/ + +#include "unicode/utypes.h" + +#if !UCONFIG_NO_CONVERSION && !UCONFIG_NO_LEGACY_CONVERSION && !UCONFIG_ONLY_HTML_CONVERSION + +#include "unicode/ucnv.h" +#include "unicode/uset.h" +#include "unicode/ucnv_err.h" +#include "unicode/ucnv_cb.h" +#include "unicode/utf16.h" +#include "ucnv_imp.h" +#include "ucnv_bld.h" +#include "ucnv_cnv.h" +#include "ucnvmbcs.h" +#include "cstring.h" +#include "cmemory.h" + +typedef enum { + INVALID = -2, + DO_SEARCH = -1, + + COMPOUND_TEXT_SINGLE_0 = 0, + COMPOUND_TEXT_SINGLE_1 = 1, + COMPOUND_TEXT_SINGLE_2 = 2, + COMPOUND_TEXT_SINGLE_3 = 3, + + COMPOUND_TEXT_DOUBLE_1 = 4, + COMPOUND_TEXT_DOUBLE_2 = 5, + COMPOUND_TEXT_DOUBLE_3 = 6, + COMPOUND_TEXT_DOUBLE_4 = 7, + COMPOUND_TEXT_DOUBLE_5 = 8, + COMPOUND_TEXT_DOUBLE_6 = 9, + COMPOUND_TEXT_DOUBLE_7 = 10, + + COMPOUND_TEXT_TRIPLE_DOUBLE = 11, + + IBM_915 = 12, + IBM_916 = 13, + IBM_914 = 14, + IBM_874 = 15, + IBM_912 = 16, + IBM_913 = 17, + ISO_8859_14 = 18, + IBM_923 = 19, + NUM_OF_CONVERTERS = 20 +} COMPOUND_TEXT_CONVERTERS; + +#define SEARCH_LENGTH 12 + +static const uint8_t escSeqCompoundText[NUM_OF_CONVERTERS][5] = { + /* Single */ + { 0x1B, 0x2D, 0x41, 0, 0 }, + { 0x1B, 0x2D, 0x4D, 0, 0 }, + { 0x1B, 0x2D, 0x46, 0, 0 }, + { 0x1B, 0x2D, 0x47, 0, 0 }, + + /* Double */ + { 0x1B, 0x24, 0x29, 0x41, 0 }, + { 0x1B, 0x24, 0x29, 0x42, 0 }, + { 0x1B, 0x24, 0x29, 0x43, 0 }, + { 0x1B, 0x24, 0x29, 0x44, 0 }, + { 0x1B, 0x24, 0x29, 0x47, 0 }, + { 0x1B, 0x24, 0x29, 0x48, 0 }, + { 0x1B, 0x24, 0x29, 0x49, 0 }, + + /* Triple/Double */ + { 0x1B, 0x25, 0x47, 0, 0 }, + + /*IBM-915*/ + { 0x1B, 0x2D, 0x4C, 0, 0 }, + /*IBM-916*/ + { 0x1B, 0x2D, 0x48, 0, 0 }, + /*IBM-914*/ + { 0x1B, 0x2D, 0x44, 0, 0 }, + /*IBM-874*/ + { 0x1B, 0x2D, 0x54, 0, 0 }, + /*IBM-912*/ + { 0x1B, 0x2D, 0x42, 0, 0 }, + /* IBM-913 */ + { 0x1B, 0x2D, 0x43, 0, 0 }, + /* ISO-8859_14 */ + { 0x1B, 0x2D, 0x5F, 0, 0 }, + /* IBM-923 */ + { 0x1B, 0x2D, 0x62, 0, 0 }, +}; + +#define ESC_START 0x1B + +#define isASCIIRange(codepoint) \ + ((codepoint == 0x0000) || (codepoint == 0x0009) || (codepoint == 0x000A) || \ + (codepoint >= 0x0020 && codepoint <= 0x007f) || (codepoint >= 0x00A0 && codepoint <= 0x00FF)) + +#define isIBM915(codepoint) \ + ((codepoint >= 0x0401 && codepoint <= 0x045F) || (codepoint == 0x2116)) + +#define isIBM916(codepoint) \ + ((codepoint >= 0x05D0 && codepoint <= 0x05EA) || (codepoint == 0x2017) || (codepoint == 0x203E)) + +#define isCompoundS3(codepoint) \ + ((codepoint == 0x060C) || (codepoint == 0x061B) || (codepoint == 0x061F) || (codepoint >= 0x0621 && codepoint <= 0x063A) || \ + (codepoint >= 0x0640 && codepoint <= 0x0652) || (codepoint >= 0x0660 && codepoint <= 0x066D) || (codepoint == 0x200B) || \ + (codepoint >= 0x0FE70 && codepoint <= 0x0FE72) || (codepoint == 0x0FE74) || (codepoint >= 0x0FE76 && codepoint <= 0x0FEBE)) + +#define isCompoundS2(codepoint) \ + ((codepoint == 0x02BC) || (codepoint == 0x02BD) || (codepoint >= 0x0384 && codepoint <= 0x03CE) || (codepoint == 0x2015)) + +#define isIBM914(codepoint) \ + ((codepoint == 0x0100) || (codepoint == 0x0101) || (codepoint == 0x0112) || (codepoint == 0x0113) || (codepoint == 0x0116) || (codepoint == 0x0117) || \ + (codepoint == 0x0122) || (codepoint == 0x0123) || (codepoint >= 0x0128 && codepoint <= 0x012B) || (codepoint == 0x012E) || (codepoint == 0x012F) || \ + (codepoint >= 0x0136 && codepoint <= 0x0138) || (codepoint == 0x013B) || (codepoint == 0x013C) || (codepoint == 0x0145) || (codepoint == 0x0146) || \ + (codepoint >= 0x014A && codepoint <= 0x014D) || (codepoint == 0x0156) || (codepoint == 0x0157) || (codepoint >= 0x0166 && codepoint <= 0x016B) || \ + (codepoint == 0x0172) || (codepoint == 0x0173)) + +#define isIBM874(codepoint) \ + ((codepoint >= 0x0E01 && codepoint <= 0x0E3A) || (codepoint >= 0x0E3F && codepoint <= 0x0E5B)) + +#define isIBM912(codepoint) \ + ((codepoint >= 0x0102 && codepoint <= 0x0107) || (codepoint >= 0x010C && codepoint <= 0x0111) || (codepoint >= 0x0118 && codepoint <= 0x011B) || \ + (codepoint == 0x0139) || (codepoint == 0x013A) || (codepoint == 0x013D) || (codepoint == 0x013E) || (codepoint >= 0x0141 && codepoint <= 0x0144) || \ + (codepoint == 0x0147) || (codepoint == 0x0147) || (codepoint == 0x0150) || (codepoint == 0x0151) || (codepoint == 0x0154) || (codepoint == 0x0155) || \ + (codepoint >= 0x0158 && codepoint <= 0x015B) || (codepoint == 0x015E) || (codepoint == 0x015F) || (codepoint >= 0x0160 && codepoint <= 0x0165) || \ + (codepoint == 0x016E) || (codepoint == 0x016F) || (codepoint == 0x0170) || (codepoint == 0x0171) || (codepoint >= 0x0179 && codepoint <= 0x017E) || \ + (codepoint == 0x02C7) || (codepoint == 0x02D8) || (codepoint == 0x02D9) || (codepoint == 0x02DB) || (codepoint == 0x02DD)) + +#define isIBM913(codepoint) \ + ((codepoint >= 0x0108 && codepoint <= 0x010B) || (codepoint == 0x011C) || \ + (codepoint == 0x011D) || (codepoint == 0x0120) || (codepoint == 0x0121) || \ + (codepoint >= 0x0124 && codepoint <= 0x0127) || (codepoint == 0x0134) || (codepoint == 0x0135) || \ + (codepoint == 0x015C) || (codepoint == 0x015D) || (codepoint == 0x016C) || (codepoint == 0x016D)) + +#define isCompoundS1(codepoint) \ + ((codepoint == 0x011E) || (codepoint == 0x011F) || (codepoint == 0x0130) || \ + (codepoint == 0x0131) || (codepoint >= 0x0218 && codepoint <= 0x021B)) + +#define isISO8859_14(codepoint) \ + ((codepoint >= 0x0174 && codepoint <= 0x0177) || (codepoint == 0x1E0A) || \ + (codepoint == 0x1E0B) || (codepoint == 0x1E1E) || (codepoint == 0x1E1F) || \ + (codepoint == 0x1E40) || (codepoint == 0x1E41) || (codepoint == 0x1E56) || \ + (codepoint == 0x1E57) || (codepoint == 0x1E60) || (codepoint == 0x1E61) || \ + (codepoint == 0x1E6A) || (codepoint == 0x1E6B) || (codepoint == 0x1EF2) || \ + (codepoint == 0x1EF3) || (codepoint >= 0x1E80 && codepoint <= 0x1E85)) + +#define isIBM923(codepoint) \ + ((codepoint == 0x0152) || (codepoint == 0x0153) || (codepoint == 0x0178) || (codepoint == 0x20AC)) + + +typedef struct{ + UConverterSharedData *myConverterArray[NUM_OF_CONVERTERS]; + COMPOUND_TEXT_CONVERTERS state; +} UConverterDataCompoundText; + +/*********** Compound Text Converter Protos ***********/ +static void +_CompoundTextOpen(UConverter *cnv, UConverterLoadArgs *pArgs, UErrorCode *errorCode); + +static void + _CompoundTextClose(UConverter *converter); + +static void +_CompoundTextReset(UConverter *converter, UConverterResetChoice choice); + +static const char* +_CompoundTextgetName(const UConverter* cnv); + + +static int32_t findNextEsc(const char *source, const char *sourceLimit) { + int32_t length = sourceLimit - source; + int32_t i; + for (i = 1; i < length; i++) { + if (*(source + i) == 0x1B) { + return i; + } + } + + return length; +} + +static COMPOUND_TEXT_CONVERTERS getState(int codepoint) { + COMPOUND_TEXT_CONVERTERS state = DO_SEARCH; + + if (isASCIIRange(codepoint)) { + state = COMPOUND_TEXT_SINGLE_0; + } else if (isIBM912(codepoint)) { + state = IBM_912; + }else if (isIBM913(codepoint)) { + state = IBM_913; + } else if (isISO8859_14(codepoint)) { + state = ISO_8859_14; + } else if (isIBM923(codepoint)) { + state = IBM_923; + } else if (isIBM874(codepoint)) { + state = IBM_874; + } else if (isIBM914(codepoint)) { + state = IBM_914; + } else if (isCompoundS2(codepoint)) { + state = COMPOUND_TEXT_SINGLE_2; + } else if (isCompoundS3(codepoint)) { + state = COMPOUND_TEXT_SINGLE_3; + } else if (isIBM916(codepoint)) { + state = IBM_916; + } else if (isIBM915(codepoint)) { + state = IBM_915; + } else if (isCompoundS1(codepoint)) { + state = COMPOUND_TEXT_SINGLE_1; + } + + return state; +} + +static COMPOUND_TEXT_CONVERTERS findStateFromEscSeq(const char* source, const char* sourceLimit, const uint8_t* toUBytesBuffer, int32_t toUBytesBufferLength, UErrorCode *err) { + COMPOUND_TEXT_CONVERTERS state = INVALID; + UBool matchFound = FALSE; + int32_t i, n, offset = toUBytesBufferLength; + + for (i = 0; i < NUM_OF_CONVERTERS; i++) { + matchFound = TRUE; + for (n = 0; escSeqCompoundText[i][n] != 0; n++) { + if (n < toUBytesBufferLength) { + if (toUBytesBuffer[n] != escSeqCompoundText[i][n]) { + matchFound = FALSE; + break; + } + } else if ((source + (n - offset)) >= sourceLimit) { + *err = U_TRUNCATED_CHAR_FOUND; + matchFound = FALSE; + break; + } else if (*(source + (n - offset)) != escSeqCompoundText[i][n]) { + matchFound = FALSE; + break; + } + } + + if (matchFound) { + break; + } + } + + if (matchFound) { + state = (COMPOUND_TEXT_CONVERTERS)i; + } + + return state; +} + +static void +_CompoundTextOpen(UConverter *cnv, UConverterLoadArgs *pArgs, UErrorCode *errorCode){ + cnv->extraInfo = uprv_malloc (sizeof (UConverterDataCompoundText)); + if (cnv->extraInfo != NULL) { + UConverterDataCompoundText *myConverterData = (UConverterDataCompoundText *) cnv->extraInfo; + + UConverterNamePieces stackPieces; + UConverterLoadArgs stackArgs={ (int32_t)sizeof(UConverterLoadArgs) }; + + myConverterData->myConverterArray[COMPOUND_TEXT_SINGLE_0] = NULL; + myConverterData->myConverterArray[COMPOUND_TEXT_SINGLE_1] = ucnv_loadSharedData("icu-internal-compound-s1", &stackPieces, &stackArgs, errorCode); + myConverterData->myConverterArray[COMPOUND_TEXT_SINGLE_2] = ucnv_loadSharedData("icu-internal-compound-s2", &stackPieces, &stackArgs, errorCode); + myConverterData->myConverterArray[COMPOUND_TEXT_SINGLE_3] = ucnv_loadSharedData("icu-internal-compound-s3", &stackPieces, &stackArgs, errorCode); + myConverterData->myConverterArray[COMPOUND_TEXT_DOUBLE_1] = ucnv_loadSharedData("icu-internal-compound-d1", &stackPieces, &stackArgs, errorCode); + myConverterData->myConverterArray[COMPOUND_TEXT_DOUBLE_2] = ucnv_loadSharedData("icu-internal-compound-d2", &stackPieces, &stackArgs, errorCode); + myConverterData->myConverterArray[COMPOUND_TEXT_DOUBLE_3] = ucnv_loadSharedData("icu-internal-compound-d3", &stackPieces, &stackArgs, errorCode); + myConverterData->myConverterArray[COMPOUND_TEXT_DOUBLE_4] = ucnv_loadSharedData("icu-internal-compound-d4", &stackPieces, &stackArgs, errorCode); + myConverterData->myConverterArray[COMPOUND_TEXT_DOUBLE_5] = ucnv_loadSharedData("icu-internal-compound-d5", &stackPieces, &stackArgs, errorCode); + myConverterData->myConverterArray[COMPOUND_TEXT_DOUBLE_6] = ucnv_loadSharedData("icu-internal-compound-d6", &stackPieces, &stackArgs, errorCode); + myConverterData->myConverterArray[COMPOUND_TEXT_DOUBLE_7] = ucnv_loadSharedData("icu-internal-compound-d7", &stackPieces, &stackArgs, errorCode); + myConverterData->myConverterArray[COMPOUND_TEXT_TRIPLE_DOUBLE] = ucnv_loadSharedData("icu-internal-compound-t", &stackPieces, &stackArgs, errorCode); + + myConverterData->myConverterArray[IBM_915] = ucnv_loadSharedData("ibm-915_P100-1995", &stackPieces, &stackArgs, errorCode); + myConverterData->myConverterArray[IBM_916] = ucnv_loadSharedData("ibm-916_P100-1995", &stackPieces, &stackArgs, errorCode); + myConverterData->myConverterArray[IBM_914] = ucnv_loadSharedData("ibm-914_P100-1995", &stackPieces, &stackArgs, errorCode); + myConverterData->myConverterArray[IBM_874] = ucnv_loadSharedData("ibm-874_P100-1995", &stackPieces, &stackArgs, errorCode); + myConverterData->myConverterArray[IBM_912] = ucnv_loadSharedData("ibm-912_P100-1995", &stackPieces, &stackArgs, errorCode); + myConverterData->myConverterArray[IBM_913] = ucnv_loadSharedData("ibm-913_P100-2000", &stackPieces, &stackArgs, errorCode); + myConverterData->myConverterArray[ISO_8859_14] = ucnv_loadSharedData("iso-8859_14-1998", &stackPieces, &stackArgs, errorCode); + myConverterData->myConverterArray[IBM_923] = ucnv_loadSharedData("ibm-923_P100-1998", &stackPieces, &stackArgs, errorCode); + + if (U_FAILURE(*errorCode) || pArgs->onlyTestIsLoadable) { + _CompoundTextClose(cnv); + return; + } + + myConverterData->state = (COMPOUND_TEXT_CONVERTERS)0; + } else { + *errorCode = U_MEMORY_ALLOCATION_ERROR; + } +} + + +static void +_CompoundTextClose(UConverter *converter) { + UConverterDataCompoundText* myConverterData = (UConverterDataCompoundText*)(converter->extraInfo); + int32_t i; + + if (converter->extraInfo != NULL) { + /*close the array of converter pointers and free the memory*/ + for (i = 0; i < NUM_OF_CONVERTERS; i++) { + if (myConverterData->myConverterArray[i] != NULL) { + ucnv_unloadSharedDataIfReady(myConverterData->myConverterArray[i]); + } + } + + uprv_free(converter->extraInfo); + } +} + +static void +_CompoundTextReset(UConverter *converter, UConverterResetChoice choice) { +} + +static const char* +_CompoundTextgetName(const UConverter* cnv){ + return "x11-compound-text"; +} + +static void +UConverter_fromUnicode_CompoundText_OFFSETS(UConverterFromUnicodeArgs* args, UErrorCode* err){ + UConverter *cnv = args->converter; + uint8_t *target = (uint8_t *) args->target; + const uint8_t *targetLimit = (const uint8_t *) args->targetLimit; + const UChar* source = args->source; + const UChar* sourceLimit = args->sourceLimit; + /* int32_t* offsets = args->offsets; */ + UChar32 sourceChar; + UBool useFallback = cnv->useFallback; + uint8_t tmpTargetBuffer[7]; + int32_t tmpTargetBufferLength = 0; + COMPOUND_TEXT_CONVERTERS currentState, tmpState; + uint32_t pValue; + int32_t pValueLength = 0; + int32_t i, n, j; + + UConverterDataCompoundText *myConverterData = (UConverterDataCompoundText *) cnv->extraInfo; + + currentState = myConverterData->state; + + /* check if the last codepoint of previous buffer was a lead surrogate*/ + if((sourceChar = cnv->fromUChar32)!=0 && target< targetLimit) { + goto getTrail; + } + + while( source < sourceLimit){ + if(target < targetLimit){ + + sourceChar = *(source++); + /*check if the char is a First surrogate*/ + if(U16_IS_SURROGATE(sourceChar)) { + if(U16_IS_SURROGATE_LEAD(sourceChar)) { +getTrail: + /*look ahead to find the trail surrogate*/ + if(source < sourceLimit) { + /* test the following code unit */ + UChar trail=(UChar) *source; + if(U16_IS_TRAIL(trail)) { + source++; + sourceChar=U16_GET_SUPPLEMENTARY(sourceChar, trail); + cnv->fromUChar32=0x00; + /* convert this supplementary code point */ + /* exit this condition tree */ + } else { + /* this is an unmatched lead code unit (1st surrogate) */ + /* callback(illegal) */ + *err=U_ILLEGAL_CHAR_FOUND; + cnv->fromUChar32=sourceChar; + break; + } + } else { + /* no more input */ + cnv->fromUChar32=sourceChar; + break; + } + } else { + /* this is an unmatched trail code unit (2nd surrogate) */ + /* callback(illegal) */ + *err=U_ILLEGAL_CHAR_FOUND; + cnv->fromUChar32=sourceChar; + break; + } + } + + tmpTargetBufferLength = 0; + tmpState = getState(sourceChar); + + if (tmpState != DO_SEARCH && currentState != tmpState) { + /* Get escape sequence if necessary */ + currentState = tmpState; + for (i = 0; escSeqCompoundText[currentState][i] != 0; i++) { + tmpTargetBuffer[tmpTargetBufferLength++] = escSeqCompoundText[currentState][i]; + } + } + + if (tmpState == DO_SEARCH) { + /* Test all available converters */ + for (i = 1; i < SEARCH_LENGTH; i++) { + pValueLength = ucnv_MBCSFromUChar32(myConverterData->myConverterArray[i], sourceChar, &pValue, useFallback); + if (pValueLength > 0) { + tmpState = (COMPOUND_TEXT_CONVERTERS)i; + if (currentState != tmpState) { + currentState = tmpState; + for (j = 0; escSeqCompoundText[currentState][j] != 0; j++) { + tmpTargetBuffer[tmpTargetBufferLength++] = escSeqCompoundText[currentState][j]; + } + } + for (n = (pValueLength - 1); n >= 0; n--) { + tmpTargetBuffer[tmpTargetBufferLength++] = (uint8_t)(pValue >> (n * 8)); + } + break; + } + } + } else if (tmpState == COMPOUND_TEXT_SINGLE_0) { + tmpTargetBuffer[tmpTargetBufferLength++] = (uint8_t)sourceChar; + } else { + pValueLength = ucnv_MBCSFromUChar32(myConverterData->myConverterArray[currentState], sourceChar, &pValue, useFallback); + if (pValueLength > 0) { + for (n = (pValueLength - 1); n >= 0; n--) { + tmpTargetBuffer[tmpTargetBufferLength++] = (uint8_t)(pValue >> (n * 8)); + } + } + } + + for (i = 0; i < tmpTargetBufferLength; i++) { + if (target < targetLimit) { + *target++ = tmpTargetBuffer[i]; + } else { + *err = U_BUFFER_OVERFLOW_ERROR; + break; + } + } + + if (*err == U_BUFFER_OVERFLOW_ERROR) { + for (; i < tmpTargetBufferLength; i++) { + args->converter->charErrorBuffer[args->converter->charErrorBufferLength++] = tmpTargetBuffer[i]; + } + } + } else { + *err = U_BUFFER_OVERFLOW_ERROR; + break; + } + } + + /*save the state and return */ + myConverterData->state = currentState; + args->source = source; + args->target = (char*)target; +} + + +static void +UConverter_toUnicode_CompoundText_OFFSETS(UConverterToUnicodeArgs *args, + UErrorCode* err){ + const char *mySource = (char *) args->source; + UChar *myTarget = args->target; + const char *mySourceLimit = args->sourceLimit; + const char *tmpSourceLimit = mySourceLimit; + uint32_t mySourceChar = 0x0000; + COMPOUND_TEXT_CONVERTERS currentState, tmpState; + int32_t sourceOffset = 0; + UConverterDataCompoundText *myConverterData = (UConverterDataCompoundText *) args->converter->extraInfo; + UConverterSharedData* savedSharedData = NULL; + + UConverterToUnicodeArgs subArgs; + int32_t minArgsSize; + + /* set up the subconverter arguments */ + if(args->size<sizeof(UConverterToUnicodeArgs)) { + minArgsSize = args->size; + } else { + minArgsSize = (int32_t)sizeof(UConverterToUnicodeArgs); + } + + uprv_memcpy(&subArgs, args, minArgsSize); + subArgs.size = (uint16_t)minArgsSize; + + currentState = tmpState = myConverterData->state; + + while(mySource < mySourceLimit){ + if(myTarget < args->targetLimit){ + if (args->converter->toULength > 0) { + mySourceChar = args->converter->toUBytes[0]; + } else { + mySourceChar = (uint8_t)*mySource; + } + + if (mySourceChar == ESC_START) { + tmpState = findStateFromEscSeq(mySource, mySourceLimit, args->converter->toUBytes, args->converter->toULength, err); + + if (*err == U_TRUNCATED_CHAR_FOUND) { + for (; mySource < mySourceLimit;) { + args->converter->toUBytes[args->converter->toULength++] = *mySource++; + } + *err = U_ZERO_ERROR; + break; + } else if (tmpState == INVALID) { + if (args->converter->toULength == 0) { + mySource++; /* skip over the 0x1b byte */ + } + *err = U_ILLEGAL_CHAR_FOUND; + break; + } + + if (tmpState != currentState) { + currentState = tmpState; + } + + sourceOffset = uprv_strlen((char*)escSeqCompoundText[currentState]) - args->converter->toULength; + + mySource += sourceOffset; + + args->converter->toULength = 0; + } + + if (currentState == COMPOUND_TEXT_SINGLE_0) { + while (mySource < mySourceLimit) { + if (*mySource == ESC_START) { + break; + } + if (myTarget < args->targetLimit) { + *myTarget++ = 0x00ff&(*mySource++); + } else { + *err = U_BUFFER_OVERFLOW_ERROR; + break; + } + } + } else if (mySource < mySourceLimit){ + sourceOffset = findNextEsc(mySource, mySourceLimit); + + tmpSourceLimit = mySource + sourceOffset; + + subArgs.source = mySource; + subArgs.sourceLimit = tmpSourceLimit; + subArgs.target = myTarget; + savedSharedData = subArgs.converter->sharedData; + subArgs.converter->sharedData = myConverterData->myConverterArray[currentState]; + + ucnv_MBCSToUnicodeWithOffsets(&subArgs, err); + + subArgs.converter->sharedData = savedSharedData; + + mySource = subArgs.source; + myTarget = subArgs.target; + + if (U_FAILURE(*err)) { + if(*err == U_BUFFER_OVERFLOW_ERROR) { + if(subArgs.converter->UCharErrorBufferLength > 0) { + uprv_memcpy(args->converter->UCharErrorBuffer, subArgs.converter->UCharErrorBuffer, + subArgs.converter->UCharErrorBufferLength); + } + args->converter->UCharErrorBufferLength=subArgs.converter->UCharErrorBufferLength; + subArgs.converter->UCharErrorBufferLength = 0; + } + break; + } + } + } else { + *err = U_BUFFER_OVERFLOW_ERROR; + break; + } + } + myConverterData->state = currentState; + args->target = myTarget; + args->source = mySource; +} + +static void +_CompoundText_GetUnicodeSet(const UConverter *cnv, + const USetAdder *sa, + UConverterUnicodeSet which, + UErrorCode *pErrorCode) { + UConverterDataCompoundText *myConverterData = (UConverterDataCompoundText *)cnv->extraInfo; + int32_t i; + + for (i = 1; i < NUM_OF_CONVERTERS; i++) { + ucnv_MBCSGetUnicodeSetForUnicode(myConverterData->myConverterArray[i], sa, which, pErrorCode); + } + sa->add(sa->set, 0x0000); + sa->add(sa->set, 0x0009); + sa->add(sa->set, 0x000A); + sa->addRange(sa->set, 0x0020, 0x007F); + sa->addRange(sa->set, 0x00A0, 0x00FF); +} + +static const UConverterImpl _CompoundTextImpl = { + + UCNV_COMPOUND_TEXT, + + NULL, + NULL, + + _CompoundTextOpen, + _CompoundTextClose, + _CompoundTextReset, + + UConverter_toUnicode_CompoundText_OFFSETS, + UConverter_toUnicode_CompoundText_OFFSETS, + UConverter_fromUnicode_CompoundText_OFFSETS, + UConverter_fromUnicode_CompoundText_OFFSETS, + NULL, + + NULL, + _CompoundTextgetName, + NULL, + NULL, + _CompoundText_GetUnicodeSet +}; +static const UConverterStaticData _CompoundTextStaticData = { + sizeof(UConverterStaticData), + "COMPOUND_TEXT", + 0, + UCNV_IBM, + UCNV_COMPOUND_TEXT, + 1, + 6, + { 0xef, 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 _CompoundTextData = + UCNV_IMMUTABLE_SHARED_DATA_INITIALIZER(&_CompoundTextStaticData, &_CompoundTextImpl); + +#endif /* #if !UCONFIG_NO_LEGACY_CONVERSION */ |