| // © 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: UTF-8 |
| * 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 ***********/ |
| U_CDECL_BEGIN |
| static void U_CALLCONV |
| _CompoundTextOpen(UConverter *cnv, UConverterLoadArgs *pArgs, UErrorCode *errorCode); |
| |
| static void U_CALLCONV |
| _CompoundTextClose(UConverter *converter); |
| |
| static void U_CALLCONV |
| _CompoundTextReset(UConverter *converter, UConverterResetChoice choice); |
| |
| static const char* U_CALLCONV |
| _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 U_CALLCONV |
| _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=UCNV_LOAD_ARGS_INITIALIZER; |
| |
| 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 U_CALLCONV |
| _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); |
| converter->extraInfo = NULL; |
| } |
| } |
| |
| static void U_CALLCONV |
| _CompoundTextReset(UConverter *converter, UConverterResetChoice choice) { |
| (void)converter; |
| (void)choice; |
| } |
| |
| static const char* U_CALLCONV |
| _CompoundTextgetName(const UConverter* cnv){ |
| (void)cnv; |
| return "x11-compound-text"; |
| } |
| |
| static void U_CALLCONV |
| 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 U_CALLCONV |
| 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 = static_cast<int32_t>(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 U_CALLCONV |
| _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); |
| } |
| U_CDECL_END |
| |
| 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, |
| NULL, |
| NULL |
| }; |
| |
| 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 */ |
