intl/icu/source/common/ucnv_ct.c

changeset 0
6474c204b198
     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/intl/icu/source/common/ucnv_ct.c	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,645 @@
     1.4 +/*
     1.5 +**********************************************************************
     1.6 +*   Copyright (C) 2010-2012, International Business Machines
     1.7 +*   Corporation and others.  All Rights Reserved.
     1.8 +**********************************************************************
     1.9 +*   file name:  ucnv_ct.c
    1.10 +*   encoding:   US-ASCII
    1.11 +*   tab size:   8 (not used)
    1.12 +*   indentation:4
    1.13 +*
    1.14 +*   created on: 2010Dec09
    1.15 +*   created by: Michael Ow
    1.16 +*/
    1.17 +
    1.18 +#include "unicode/utypes.h"
    1.19 +
    1.20 +#if !UCONFIG_NO_CONVERSION && !UCONFIG_NO_LEGACY_CONVERSION
    1.21 +
    1.22 +#include "unicode/ucnv.h"
    1.23 +#include "unicode/uset.h"
    1.24 +#include "unicode/ucnv_err.h"
    1.25 +#include "unicode/ucnv_cb.h"
    1.26 +#include "unicode/utf16.h"
    1.27 +#include "ucnv_imp.h"
    1.28 +#include "ucnv_bld.h"
    1.29 +#include "ucnv_cnv.h"
    1.30 +#include "ucnvmbcs.h"
    1.31 +#include "cstring.h"
    1.32 +#include "cmemory.h"
    1.33 +
    1.34 +#define LENGTHOF(array) (int32_t)(sizeof(array)/sizeof((array)[0]))
    1.35 +
    1.36 +typedef enum {
    1.37 +    INVALID = -2,
    1.38 +    DO_SEARCH = -1,
    1.39 +
    1.40 +    COMPOUND_TEXT_SINGLE_0 = 0,
    1.41 +    COMPOUND_TEXT_SINGLE_1 = 1,
    1.42 +    COMPOUND_TEXT_SINGLE_2 = 2,
    1.43 +    COMPOUND_TEXT_SINGLE_3 = 3,
    1.44 +
    1.45 +    COMPOUND_TEXT_DOUBLE_1 = 4,
    1.46 +    COMPOUND_TEXT_DOUBLE_2 = 5,
    1.47 +    COMPOUND_TEXT_DOUBLE_3 = 6,
    1.48 +    COMPOUND_TEXT_DOUBLE_4 = 7,
    1.49 +    COMPOUND_TEXT_DOUBLE_5 = 8,
    1.50 +    COMPOUND_TEXT_DOUBLE_6 = 9,
    1.51 +    COMPOUND_TEXT_DOUBLE_7 = 10,
    1.52 +
    1.53 +    COMPOUND_TEXT_TRIPLE_DOUBLE = 11,
    1.54 +
    1.55 +    IBM_915 = 12,
    1.56 +    IBM_916 = 13,
    1.57 +    IBM_914 = 14,
    1.58 +    IBM_874 = 15,
    1.59 +    IBM_912 = 16,
    1.60 +    IBM_913 = 17,
    1.61 +    ISO_8859_14 = 18,
    1.62 +    IBM_923 = 19,
    1.63 +    NUM_OF_CONVERTERS = 20
    1.64 +} COMPOUND_TEXT_CONVERTERS;
    1.65 +
    1.66 +#define SEARCH_LENGTH 12
    1.67 +
    1.68 +static const uint8_t escSeqCompoundText[NUM_OF_CONVERTERS][5] = {
    1.69 +    /* Single */
    1.70 +    { 0x1B, 0x2D, 0x41, 0, 0 },
    1.71 +    { 0x1B, 0x2D, 0x4D, 0, 0 },
    1.72 +    { 0x1B, 0x2D, 0x46, 0, 0 },
    1.73 +    { 0x1B, 0x2D, 0x47, 0, 0 },
    1.74 +
    1.75 +    /* Double */
    1.76 +    { 0x1B, 0x24, 0x29, 0x41, 0 },
    1.77 +    { 0x1B, 0x24, 0x29, 0x42, 0 },
    1.78 +    { 0x1B, 0x24, 0x29, 0x43, 0 },
    1.79 +    { 0x1B, 0x24, 0x29, 0x44, 0 },
    1.80 +    { 0x1B, 0x24, 0x29, 0x47, 0 },
    1.81 +    { 0x1B, 0x24, 0x29, 0x48, 0 },
    1.82 +    { 0x1B, 0x24, 0x29, 0x49, 0 },
    1.83 +
    1.84 +    /* Triple/Double */
    1.85 +    { 0x1B, 0x25, 0x47, 0, 0 },
    1.86 +
    1.87 +    /*IBM-915*/
    1.88 +    { 0x1B, 0x2D, 0x4C, 0, 0 },
    1.89 +    /*IBM-916*/
    1.90 +    { 0x1B, 0x2D, 0x48, 0, 0 },
    1.91 +    /*IBM-914*/
    1.92 +    { 0x1B, 0x2D, 0x44, 0, 0 },
    1.93 +    /*IBM-874*/
    1.94 +    { 0x1B, 0x2D, 0x54, 0, 0 },
    1.95 +    /*IBM-912*/
    1.96 +    { 0x1B, 0x2D, 0x42, 0, 0 },
    1.97 +    /* IBM-913 */
    1.98 +    { 0x1B, 0x2D, 0x43, 0, 0 },
    1.99 +    /* ISO-8859_14 */
   1.100 +    { 0x1B, 0x2D, 0x5F, 0, 0 },
   1.101 +    /* IBM-923 */
   1.102 +    { 0x1B, 0x2D, 0x62, 0, 0 },
   1.103 +};
   1.104 +
   1.105 +#define ESC_START 0x1B
   1.106 +
   1.107 +#define isASCIIRange(codepoint) \
   1.108 +        ((codepoint == 0x0000) || (codepoint == 0x0009) || (codepoint == 0x000A) || \
   1.109 +         (codepoint >= 0x0020 && codepoint <= 0x007f) || (codepoint >= 0x00A0 && codepoint <= 0x00FF))
   1.110 +
   1.111 +#define isIBM915(codepoint) \
   1.112 +        ((codepoint >= 0x0401 && codepoint <= 0x045F) || (codepoint == 0x2116))
   1.113 +
   1.114 +#define isIBM916(codepoint) \
   1.115 +        ((codepoint >= 0x05D0 && codepoint <= 0x05EA) || (codepoint == 0x2017) || (codepoint == 0x203E))
   1.116 +
   1.117 +#define isCompoundS3(codepoint) \
   1.118 +        ((codepoint == 0x060C) || (codepoint == 0x061B) || (codepoint == 0x061F) || (codepoint >= 0x0621 && codepoint <= 0x063A) || \
   1.119 +         (codepoint >= 0x0640 && codepoint <= 0x0652) || (codepoint >= 0x0660 && codepoint <= 0x066D) || (codepoint == 0x200B) || \
   1.120 +         (codepoint >= 0x0FE70 && codepoint <= 0x0FE72) || (codepoint == 0x0FE74) || (codepoint >= 0x0FE76 && codepoint <= 0x0FEBE))
   1.121 +
   1.122 +#define isCompoundS2(codepoint) \
   1.123 +        ((codepoint == 0x02BC) || (codepoint == 0x02BD) || (codepoint >= 0x0384 && codepoint <= 0x03CE) || (codepoint == 0x2015))
   1.124 +
   1.125 +#define isIBM914(codepoint) \
   1.126 +        ((codepoint == 0x0100) || (codepoint == 0x0101) || (codepoint == 0x0112) || (codepoint == 0x0113) || (codepoint == 0x0116) || (codepoint == 0x0117) || \
   1.127 +         (codepoint == 0x0122) || (codepoint == 0x0123) || (codepoint >= 0x0128 && codepoint <= 0x012B) || (codepoint == 0x012E) || (codepoint == 0x012F) || \
   1.128 +         (codepoint >= 0x0136 && codepoint <= 0x0138) || (codepoint == 0x013B) || (codepoint == 0x013C) || (codepoint == 0x0145) || (codepoint ==  0x0146) || \
   1.129 +         (codepoint >= 0x014A && codepoint <= 0x014D) || (codepoint == 0x0156) || (codepoint == 0x0157) || (codepoint >= 0x0166 && codepoint <= 0x016B) || \
   1.130 +         (codepoint == 0x0172) || (codepoint == 0x0173))
   1.131 +
   1.132 +#define isIBM874(codepoint) \
   1.133 +        ((codepoint >= 0x0E01 && codepoint <= 0x0E3A) || (codepoint >= 0x0E3F && codepoint <= 0x0E5B))
   1.134 +
   1.135 +#define isIBM912(codepoint) \
   1.136 +        ((codepoint >= 0x0102 && codepoint <= 0x0107) || (codepoint >= 0x010C && codepoint <= 0x0111) || (codepoint >= 0x0118 && codepoint <= 0x011B) || \
   1.137 +         (codepoint == 0x0139) || (codepoint == 0x013A) || (codepoint == 0x013D) || (codepoint == 0x013E) || (codepoint >= 0x0141 && codepoint <= 0x0144) || \
   1.138 +         (codepoint == 0x0147) || (codepoint == 0x0147) || (codepoint == 0x0150) || (codepoint == 0x0151) || (codepoint == 0x0154) || (codepoint == 0x0155) || \
   1.139 +         (codepoint >= 0x0158 && codepoint <= 0x015B) || (codepoint == 0x015E) || (codepoint == 0x015F) || (codepoint >= 0x0160 && codepoint <= 0x0165) || \
   1.140 +         (codepoint == 0x016E) || (codepoint == 0x016F) || (codepoint == 0x0170) || (codepoint ==  0x0171) || (codepoint >= 0x0179 && codepoint <= 0x017E) || \
   1.141 +         (codepoint == 0x02C7) || (codepoint == 0x02D8) || (codepoint == 0x02D9) || (codepoint == 0x02DB) || (codepoint == 0x02DD))
   1.142 +
   1.143 +#define isIBM913(codepoint) \
   1.144 +        ((codepoint >= 0x0108 && codepoint <= 0x010B) || (codepoint == 0x011C) || \
   1.145 +         (codepoint == 0x011D) || (codepoint == 0x0120) || (codepoint == 0x0121) || \
   1.146 +         (codepoint >= 0x0124 && codepoint <= 0x0127) || (codepoint == 0x0134) || (codepoint == 0x0135) || \
   1.147 +         (codepoint == 0x015C) || (codepoint == 0x015D) || (codepoint == 0x016C) || (codepoint ==  0x016D))
   1.148 +
   1.149 +#define isCompoundS1(codepoint) \
   1.150 +        ((codepoint == 0x011E) || (codepoint == 0x011F) || (codepoint == 0x0130) || \
   1.151 +         (codepoint == 0x0131) || (codepoint >= 0x0218 && codepoint <= 0x021B))
   1.152 +
   1.153 +#define isISO8859_14(codepoint) \
   1.154 +        ((codepoint >= 0x0174 && codepoint <= 0x0177) || (codepoint == 0x1E0A) || \
   1.155 +         (codepoint == 0x1E0B) || (codepoint == 0x1E1E) || (codepoint == 0x1E1F) || \
   1.156 +         (codepoint == 0x1E40) || (codepoint == 0x1E41) || (codepoint == 0x1E56) || \
   1.157 +         (codepoint == 0x1E57) || (codepoint == 0x1E60) || (codepoint == 0x1E61) || \
   1.158 +         (codepoint == 0x1E6A) || (codepoint == 0x1E6B) || (codepoint == 0x1EF2) || \
   1.159 +         (codepoint == 0x1EF3) || (codepoint >= 0x1E80 && codepoint <= 0x1E85))
   1.160 +
   1.161 +#define isIBM923(codepoint) \
   1.162 +        ((codepoint == 0x0152) || (codepoint == 0x0153) || (codepoint == 0x0178) || (codepoint == 0x20AC))
   1.163 +
   1.164 +
   1.165 +typedef struct{
   1.166 +    UConverterSharedData *myConverterArray[NUM_OF_CONVERTERS];
   1.167 +    COMPOUND_TEXT_CONVERTERS state;
   1.168 +} UConverterDataCompoundText;
   1.169 +
   1.170 +/*********** Compound Text Converter Protos ***********/
   1.171 +static void
   1.172 +_CompoundTextOpen(UConverter *cnv, UConverterLoadArgs *pArgs, UErrorCode *errorCode);
   1.173 +
   1.174 +static void
   1.175 + _CompoundTextClose(UConverter *converter);
   1.176 +
   1.177 +static void
   1.178 +_CompoundTextReset(UConverter *converter, UConverterResetChoice choice);
   1.179 +
   1.180 +static const char*
   1.181 +_CompoundTextgetName(const UConverter* cnv);
   1.182 +
   1.183 +
   1.184 +static int32_t findNextEsc(const char *source, const char *sourceLimit) {
   1.185 +    int32_t length = sourceLimit - source;
   1.186 +    int32_t i;
   1.187 +    for (i = 1; i < length; i++) {
   1.188 +        if (*(source + i) == 0x1B) {
   1.189 +            return i;
   1.190 +        }
   1.191 +    }
   1.192 +
   1.193 +    return length;
   1.194 +}
   1.195 +
   1.196 +static COMPOUND_TEXT_CONVERTERS getState(int codepoint) {
   1.197 +    COMPOUND_TEXT_CONVERTERS state = DO_SEARCH;
   1.198 +
   1.199 +    if (isASCIIRange(codepoint)) {
   1.200 +        state = COMPOUND_TEXT_SINGLE_0;
   1.201 +    } else if (isIBM912(codepoint)) {
   1.202 +        state = IBM_912;
   1.203 +    }else if (isIBM913(codepoint)) {
   1.204 +        state = IBM_913;
   1.205 +    } else if (isISO8859_14(codepoint)) {
   1.206 +        state = ISO_8859_14;
   1.207 +    } else if (isIBM923(codepoint)) {
   1.208 +        state = IBM_923;
   1.209 +    } else if (isIBM874(codepoint)) {
   1.210 +        state = IBM_874;
   1.211 +    } else if (isIBM914(codepoint)) {
   1.212 +        state = IBM_914;
   1.213 +    } else if (isCompoundS2(codepoint)) {
   1.214 +        state = COMPOUND_TEXT_SINGLE_2;
   1.215 +    } else if (isCompoundS3(codepoint)) {
   1.216 +        state = COMPOUND_TEXT_SINGLE_3;
   1.217 +    } else if (isIBM916(codepoint)) {
   1.218 +        state = IBM_916;
   1.219 +    } else if (isIBM915(codepoint)) {
   1.220 +        state = IBM_915;
   1.221 +    } else if (isCompoundS1(codepoint)) {
   1.222 +        state = COMPOUND_TEXT_SINGLE_1;
   1.223 +    }
   1.224 +
   1.225 +    return state;
   1.226 +}
   1.227 +
   1.228 +static COMPOUND_TEXT_CONVERTERS findStateFromEscSeq(const char* source, const char* sourceLimit, const uint8_t* toUBytesBuffer, int32_t toUBytesBufferLength, UErrorCode *err) {
   1.229 +    COMPOUND_TEXT_CONVERTERS state = INVALID;
   1.230 +    UBool matchFound = FALSE;
   1.231 +    int32_t i, n, offset = toUBytesBufferLength;
   1.232 +
   1.233 +    for (i = 0; i < NUM_OF_CONVERTERS; i++) {
   1.234 +        matchFound = TRUE;
   1.235 +        for (n = 0; escSeqCompoundText[i][n] != 0; n++) {
   1.236 +            if (n < toUBytesBufferLength) {
   1.237 +                if (toUBytesBuffer[n] != escSeqCompoundText[i][n]) {
   1.238 +                    matchFound = FALSE;
   1.239 +                    break;
   1.240 +                }
   1.241 +            } else if ((source + (n - offset)) >= sourceLimit) {
   1.242 +                *err = U_TRUNCATED_CHAR_FOUND;
   1.243 +                matchFound = FALSE;
   1.244 +                break;
   1.245 +            } else if (*(source + (n - offset)) != escSeqCompoundText[i][n]) {
   1.246 +                matchFound = FALSE;
   1.247 +                break;
   1.248 +            }
   1.249 +        }
   1.250 +
   1.251 +        if (matchFound) {
   1.252 +            break;
   1.253 +        }
   1.254 +    }
   1.255 +
   1.256 +    if (matchFound) {
   1.257 +        state = (COMPOUND_TEXT_CONVERTERS)i;
   1.258 +    }
   1.259 +
   1.260 +    return state;
   1.261 +}
   1.262 +
   1.263 +static void
   1.264 +_CompoundTextOpen(UConverter *cnv, UConverterLoadArgs *pArgs, UErrorCode *errorCode){
   1.265 +    cnv->extraInfo = uprv_malloc (sizeof (UConverterDataCompoundText));
   1.266 +    if (cnv->extraInfo != NULL) {
   1.267 +        UConverterDataCompoundText *myConverterData = (UConverterDataCompoundText *) cnv->extraInfo;
   1.268 +
   1.269 +        UConverterNamePieces stackPieces;
   1.270 +        UConverterLoadArgs stackArgs={ (int32_t)sizeof(UConverterLoadArgs) };
   1.271 +
   1.272 +        myConverterData->myConverterArray[COMPOUND_TEXT_SINGLE_0] = NULL;
   1.273 +        myConverterData->myConverterArray[COMPOUND_TEXT_SINGLE_1] = ucnv_loadSharedData("icu-internal-compound-s1", &stackPieces, &stackArgs, errorCode);
   1.274 +        myConverterData->myConverterArray[COMPOUND_TEXT_SINGLE_2] = ucnv_loadSharedData("icu-internal-compound-s2", &stackPieces, &stackArgs, errorCode);
   1.275 +        myConverterData->myConverterArray[COMPOUND_TEXT_SINGLE_3] = ucnv_loadSharedData("icu-internal-compound-s3", &stackPieces, &stackArgs, errorCode);
   1.276 +        myConverterData->myConverterArray[COMPOUND_TEXT_DOUBLE_1] = ucnv_loadSharedData("icu-internal-compound-d1", &stackPieces, &stackArgs, errorCode);
   1.277 +        myConverterData->myConverterArray[COMPOUND_TEXT_DOUBLE_2] = ucnv_loadSharedData("icu-internal-compound-d2", &stackPieces, &stackArgs, errorCode);
   1.278 +        myConverterData->myConverterArray[COMPOUND_TEXT_DOUBLE_3] = ucnv_loadSharedData("icu-internal-compound-d3", &stackPieces, &stackArgs, errorCode);
   1.279 +        myConverterData->myConverterArray[COMPOUND_TEXT_DOUBLE_4] = ucnv_loadSharedData("icu-internal-compound-d4", &stackPieces, &stackArgs, errorCode);
   1.280 +        myConverterData->myConverterArray[COMPOUND_TEXT_DOUBLE_5] = ucnv_loadSharedData("icu-internal-compound-d5", &stackPieces, &stackArgs, errorCode);
   1.281 +        myConverterData->myConverterArray[COMPOUND_TEXT_DOUBLE_6] = ucnv_loadSharedData("icu-internal-compound-d6", &stackPieces, &stackArgs, errorCode);
   1.282 +        myConverterData->myConverterArray[COMPOUND_TEXT_DOUBLE_7] = ucnv_loadSharedData("icu-internal-compound-d7", &stackPieces, &stackArgs, errorCode);
   1.283 +        myConverterData->myConverterArray[COMPOUND_TEXT_TRIPLE_DOUBLE] = ucnv_loadSharedData("icu-internal-compound-t", &stackPieces, &stackArgs, errorCode);
   1.284 +
   1.285 +        myConverterData->myConverterArray[IBM_915] = ucnv_loadSharedData("ibm-915_P100-1995", &stackPieces, &stackArgs, errorCode);
   1.286 +        myConverterData->myConverterArray[IBM_916] = ucnv_loadSharedData("ibm-916_P100-1995", &stackPieces, &stackArgs, errorCode);
   1.287 +        myConverterData->myConverterArray[IBM_914] = ucnv_loadSharedData("ibm-914_P100-1995", &stackPieces, &stackArgs, errorCode);
   1.288 +        myConverterData->myConverterArray[IBM_874] = ucnv_loadSharedData("ibm-874_P100-1995", &stackPieces, &stackArgs, errorCode);
   1.289 +        myConverterData->myConverterArray[IBM_912] = ucnv_loadSharedData("ibm-912_P100-1995", &stackPieces, &stackArgs, errorCode);
   1.290 +        myConverterData->myConverterArray[IBM_913] = ucnv_loadSharedData("ibm-913_P100-2000", &stackPieces, &stackArgs, errorCode);
   1.291 +        myConverterData->myConverterArray[ISO_8859_14] = ucnv_loadSharedData("iso-8859_14-1998", &stackPieces, &stackArgs, errorCode);
   1.292 +        myConverterData->myConverterArray[IBM_923] = ucnv_loadSharedData("ibm-923_P100-1998", &stackPieces, &stackArgs, errorCode);
   1.293 +
   1.294 +        if (U_FAILURE(*errorCode) || pArgs->onlyTestIsLoadable) {
   1.295 +            _CompoundTextClose(cnv);
   1.296 +            return;
   1.297 +        }
   1.298 +
   1.299 +        myConverterData->state = (COMPOUND_TEXT_CONVERTERS)0;
   1.300 +    } else {
   1.301 +        *errorCode = U_MEMORY_ALLOCATION_ERROR;
   1.302 +    }
   1.303 +}
   1.304 +
   1.305 +
   1.306 +static void
   1.307 +_CompoundTextClose(UConverter *converter) {
   1.308 +    UConverterDataCompoundText* myConverterData = (UConverterDataCompoundText*)(converter->extraInfo);
   1.309 +    int32_t i;
   1.310 +
   1.311 +    if (converter->extraInfo != NULL) {
   1.312 +        /*close the array of converter pointers and free the memory*/
   1.313 +        for (i = 0; i < NUM_OF_CONVERTERS; i++) {
   1.314 +            if (myConverterData->myConverterArray[i] != NULL) {
   1.315 +                ucnv_unloadSharedDataIfReady(myConverterData->myConverterArray[i]);
   1.316 +            }
   1.317 +        }
   1.318 +
   1.319 +        uprv_free(converter->extraInfo);
   1.320 +    }
   1.321 +}
   1.322 +
   1.323 +static void
   1.324 +_CompoundTextReset(UConverter *converter, UConverterResetChoice choice) {
   1.325 +}
   1.326 +
   1.327 +static const char*
   1.328 +_CompoundTextgetName(const UConverter* cnv){
   1.329 +    return "x11-compound-text";
   1.330 +}
   1.331 +
   1.332 +static void
   1.333 +UConverter_fromUnicode_CompoundText_OFFSETS(UConverterFromUnicodeArgs* args, UErrorCode* err){
   1.334 +    UConverter *cnv = args->converter;
   1.335 +    uint8_t *target = (uint8_t *) args->target;
   1.336 +    const uint8_t *targetLimit = (const uint8_t *) args->targetLimit;
   1.337 +    const UChar* source = args->source;
   1.338 +    const UChar* sourceLimit = args->sourceLimit;
   1.339 +    /* int32_t* offsets = args->offsets; */
   1.340 +    UChar32 sourceChar;
   1.341 +    UBool useFallback = cnv->useFallback;
   1.342 +    uint8_t tmpTargetBuffer[7];
   1.343 +    int32_t tmpTargetBufferLength = 0;
   1.344 +    COMPOUND_TEXT_CONVERTERS currentState, tmpState;
   1.345 +    uint32_t pValue;
   1.346 +    int32_t pValueLength = 0;
   1.347 +    int32_t i, n, j;
   1.348 +
   1.349 +    UConverterDataCompoundText *myConverterData = (UConverterDataCompoundText *) cnv->extraInfo;
   1.350 +
   1.351 +    currentState = myConverterData->state;
   1.352 +
   1.353 +    /* check if the last codepoint of previous buffer was a lead surrogate*/
   1.354 +    if((sourceChar = cnv->fromUChar32)!=0 && target< targetLimit) {
   1.355 +        goto getTrail;
   1.356 +    }
   1.357 +
   1.358 +    while( source < sourceLimit){
   1.359 +        if(target < targetLimit){
   1.360 +
   1.361 +            sourceChar  = *(source++);
   1.362 +            /*check if the char is a First surrogate*/
   1.363 +             if(U16_IS_SURROGATE(sourceChar)) {
   1.364 +                if(U16_IS_SURROGATE_LEAD(sourceChar)) {
   1.365 +getTrail:
   1.366 +                    /*look ahead to find the trail surrogate*/
   1.367 +                    if(source < sourceLimit) {
   1.368 +                        /* test the following code unit */
   1.369 +                        UChar trail=(UChar) *source;
   1.370 +                        if(U16_IS_TRAIL(trail)) {
   1.371 +                            source++;
   1.372 +                            sourceChar=U16_GET_SUPPLEMENTARY(sourceChar, trail);
   1.373 +                            cnv->fromUChar32=0x00;
   1.374 +                            /* convert this supplementary code point */
   1.375 +                            /* exit this condition tree */
   1.376 +                        } else {
   1.377 +                            /* this is an unmatched lead code unit (1st surrogate) */
   1.378 +                            /* callback(illegal) */
   1.379 +                            *err=U_ILLEGAL_CHAR_FOUND;
   1.380 +                            cnv->fromUChar32=sourceChar;
   1.381 +                            break;
   1.382 +                        }
   1.383 +                    } else {
   1.384 +                        /* no more input */
   1.385 +                        cnv->fromUChar32=sourceChar;
   1.386 +                        break;
   1.387 +                    }
   1.388 +                } else {
   1.389 +                    /* this is an unmatched trail code unit (2nd surrogate) */
   1.390 +                    /* callback(illegal) */
   1.391 +                    *err=U_ILLEGAL_CHAR_FOUND;
   1.392 +                    cnv->fromUChar32=sourceChar;
   1.393 +                    break;
   1.394 +                }
   1.395 +            }
   1.396 +
   1.397 +             tmpTargetBufferLength = 0;
   1.398 +             tmpState = getState(sourceChar);
   1.399 +
   1.400 +             if (tmpState != DO_SEARCH && currentState != tmpState) {
   1.401 +                 /* Get escape sequence if necessary */
   1.402 +                 currentState = tmpState;
   1.403 +                 for (i = 0; escSeqCompoundText[currentState][i] != 0; i++) {
   1.404 +                     tmpTargetBuffer[tmpTargetBufferLength++] = escSeqCompoundText[currentState][i];
   1.405 +                 }
   1.406 +             }
   1.407 +
   1.408 +             if (tmpState == DO_SEARCH) {
   1.409 +                 /* Test all available converters */
   1.410 +                 for (i = 1; i < SEARCH_LENGTH; i++) {
   1.411 +                     pValueLength = ucnv_MBCSFromUChar32(myConverterData->myConverterArray[i], sourceChar, &pValue, useFallback);
   1.412 +                     if (pValueLength > 0) {
   1.413 +                         tmpState = (COMPOUND_TEXT_CONVERTERS)i;
   1.414 +                         if (currentState != tmpState) {
   1.415 +                             currentState = tmpState;
   1.416 +                             for (j = 0; escSeqCompoundText[currentState][j] != 0; j++) {
   1.417 +                                 tmpTargetBuffer[tmpTargetBufferLength++] = escSeqCompoundText[currentState][j];
   1.418 +                             }
   1.419 +                         }
   1.420 +                         for (n = (pValueLength - 1); n >= 0; n--) {
   1.421 +                             tmpTargetBuffer[tmpTargetBufferLength++] = (uint8_t)(pValue >> (n * 8));
   1.422 +                         }
   1.423 +                         break;
   1.424 +                     }
   1.425 +                 }
   1.426 +             } else if (tmpState == COMPOUND_TEXT_SINGLE_0) {
   1.427 +                 tmpTargetBuffer[tmpTargetBufferLength++] = (uint8_t)sourceChar;
   1.428 +             } else {
   1.429 +                 pValueLength = ucnv_MBCSFromUChar32(myConverterData->myConverterArray[currentState], sourceChar, &pValue, useFallback);
   1.430 +                 if (pValueLength > 0) {
   1.431 +                     for (n = (pValueLength - 1); n >= 0; n--) {
   1.432 +                         tmpTargetBuffer[tmpTargetBufferLength++] = (uint8_t)(pValue >> (n * 8));
   1.433 +                     }
   1.434 +                 }
   1.435 +             }
   1.436 +
   1.437 +             for (i = 0; i < tmpTargetBufferLength; i++) {
   1.438 +                 if (target < targetLimit) {
   1.439 +                     *target++ = tmpTargetBuffer[i];
   1.440 +                 } else {
   1.441 +                     *err = U_BUFFER_OVERFLOW_ERROR;
   1.442 +                     break;
   1.443 +                 }
   1.444 +             }
   1.445 +
   1.446 +             if (*err == U_BUFFER_OVERFLOW_ERROR) {
   1.447 +                 for (; i < tmpTargetBufferLength; i++) {
   1.448 +                     args->converter->charErrorBuffer[args->converter->charErrorBufferLength++] = tmpTargetBuffer[i];
   1.449 +                 }
   1.450 +             }
   1.451 +        } else {
   1.452 +            *err = U_BUFFER_OVERFLOW_ERROR;
   1.453 +            break;
   1.454 +        }
   1.455 +    }
   1.456 +
   1.457 +    /*save the state and return */
   1.458 +    myConverterData->state = currentState;
   1.459 +    args->source = source;
   1.460 +    args->target = (char*)target;
   1.461 +}
   1.462 +
   1.463 +
   1.464 +static void
   1.465 +UConverter_toUnicode_CompoundText_OFFSETS(UConverterToUnicodeArgs *args,
   1.466 +                                               UErrorCode* err){
   1.467 +    const char *mySource = (char *) args->source;
   1.468 +    UChar *myTarget = args->target;
   1.469 +    const char *mySourceLimit = args->sourceLimit;
   1.470 +    const char *tmpSourceLimit = mySourceLimit;
   1.471 +    uint32_t mySourceChar = 0x0000;
   1.472 +    COMPOUND_TEXT_CONVERTERS currentState, tmpState;
   1.473 +    int32_t sourceOffset = 0;
   1.474 +    UConverterDataCompoundText *myConverterData = (UConverterDataCompoundText *) args->converter->extraInfo;
   1.475 +    UConverterSharedData* savedSharedData = NULL;
   1.476 +
   1.477 +    UConverterToUnicodeArgs subArgs;
   1.478 +    int32_t minArgsSize;
   1.479 +
   1.480 +    /* set up the subconverter arguments */
   1.481 +    if(args->size<sizeof(UConverterToUnicodeArgs)) {
   1.482 +        minArgsSize = args->size;
   1.483 +    } else {
   1.484 +        minArgsSize = (int32_t)sizeof(UConverterToUnicodeArgs);
   1.485 +    }
   1.486 +
   1.487 +    uprv_memcpy(&subArgs, args, minArgsSize);
   1.488 +    subArgs.size = (uint16_t)minArgsSize;
   1.489 +
   1.490 +    currentState = tmpState =  myConverterData->state;
   1.491 +
   1.492 +    while(mySource < mySourceLimit){
   1.493 +        if(myTarget < args->targetLimit){
   1.494 +            if (args->converter->toULength > 0) {
   1.495 +                mySourceChar = args->converter->toUBytes[0];
   1.496 +            } else {
   1.497 +                mySourceChar = (uint8_t)*mySource;
   1.498 +            }
   1.499 +
   1.500 +            if (mySourceChar == ESC_START) {
   1.501 +                tmpState = findStateFromEscSeq(mySource, mySourceLimit, args->converter->toUBytes, args->converter->toULength, err);
   1.502 +
   1.503 +                if (*err == U_TRUNCATED_CHAR_FOUND) {
   1.504 +                    for (; mySource < mySourceLimit;) {
   1.505 +                        args->converter->toUBytes[args->converter->toULength++] = *mySource++;
   1.506 +                    }
   1.507 +                    *err = U_ZERO_ERROR;
   1.508 +                    break;
   1.509 +                } else if (tmpState == INVALID) {
   1.510 +                    if (args->converter->toULength == 0) {
   1.511 +                        mySource++; /* skip over the 0x1b byte */
   1.512 +                    }
   1.513 +                    *err = U_ILLEGAL_CHAR_FOUND;
   1.514 +                    break;
   1.515 +                }
   1.516 +
   1.517 +                if (tmpState != currentState) {
   1.518 +                    currentState = tmpState;
   1.519 +                }
   1.520 +
   1.521 +                sourceOffset = uprv_strlen((char*)escSeqCompoundText[currentState]) - args->converter->toULength;
   1.522 +
   1.523 +                mySource += sourceOffset;
   1.524 +
   1.525 +                args->converter->toULength = 0;
   1.526 +            }
   1.527 +
   1.528 +            if (currentState == COMPOUND_TEXT_SINGLE_0) {
   1.529 +                while (mySource < mySourceLimit) {
   1.530 +                    if (*mySource == ESC_START) {
   1.531 +                        break;
   1.532 +                    }
   1.533 +                    if (myTarget < args->targetLimit) {
   1.534 +                        *myTarget++ = 0x00ff&(*mySource++);
   1.535 +                    } else {
   1.536 +                        *err = U_BUFFER_OVERFLOW_ERROR;
   1.537 +                        break;
   1.538 +                    }
   1.539 +                }
   1.540 +            } else if (mySource < mySourceLimit){
   1.541 +                sourceOffset = findNextEsc(mySource, mySourceLimit);
   1.542 +
   1.543 +                tmpSourceLimit = mySource + sourceOffset;
   1.544 +
   1.545 +                subArgs.source = mySource;
   1.546 +                subArgs.sourceLimit = tmpSourceLimit;
   1.547 +                subArgs.target = myTarget;
   1.548 +                savedSharedData = subArgs.converter->sharedData;
   1.549 +                subArgs.converter->sharedData = myConverterData->myConverterArray[currentState];
   1.550 +
   1.551 +                ucnv_MBCSToUnicodeWithOffsets(&subArgs, err);
   1.552 +
   1.553 +                subArgs.converter->sharedData = savedSharedData;
   1.554 +
   1.555 +                mySource = subArgs.source;
   1.556 +                myTarget = subArgs.target;
   1.557 +
   1.558 +                if (U_FAILURE(*err)) {
   1.559 +                    if(*err == U_BUFFER_OVERFLOW_ERROR) {
   1.560 +                        if(subArgs.converter->UCharErrorBufferLength > 0) {
   1.561 +                            uprv_memcpy(args->converter->UCharErrorBuffer, subArgs.converter->UCharErrorBuffer,
   1.562 +                                        subArgs.converter->UCharErrorBufferLength);
   1.563 +                        }
   1.564 +                        args->converter->UCharErrorBufferLength=subArgs.converter->UCharErrorBufferLength;
   1.565 +                        subArgs.converter->UCharErrorBufferLength = 0;
   1.566 +                    }
   1.567 +                    break;
   1.568 +                }
   1.569 +            }
   1.570 +        } else {
   1.571 +            *err = U_BUFFER_OVERFLOW_ERROR;
   1.572 +            break;
   1.573 +        }
   1.574 +    }
   1.575 +    myConverterData->state = currentState;
   1.576 +    args->target = myTarget;
   1.577 +    args->source = mySource;
   1.578 +}
   1.579 +
   1.580 +static void
   1.581 +_CompoundText_GetUnicodeSet(const UConverter *cnv,
   1.582 +                    const USetAdder *sa,
   1.583 +                    UConverterUnicodeSet which,
   1.584 +                    UErrorCode *pErrorCode) {
   1.585 +    UConverterDataCompoundText *myConverterData = (UConverterDataCompoundText *)cnv->extraInfo;
   1.586 +    int32_t i;
   1.587 +
   1.588 +    for (i = 1; i < NUM_OF_CONVERTERS; i++) {
   1.589 +        ucnv_MBCSGetUnicodeSetForUnicode(myConverterData->myConverterArray[i], sa, which, pErrorCode);
   1.590 +    }
   1.591 +    sa->add(sa->set, 0x0000);
   1.592 +    sa->add(sa->set, 0x0009);
   1.593 +    sa->add(sa->set, 0x000A);
   1.594 +    sa->addRange(sa->set, 0x0020, 0x007F);
   1.595 +    sa->addRange(sa->set, 0x00A0, 0x00FF);
   1.596 +}
   1.597 +
   1.598 +static const UConverterImpl _CompoundTextImpl = {
   1.599 +
   1.600 +    UCNV_COMPOUND_TEXT,
   1.601 +
   1.602 +    NULL,
   1.603 +    NULL,
   1.604 +
   1.605 +    _CompoundTextOpen,
   1.606 +    _CompoundTextClose,
   1.607 +    _CompoundTextReset,
   1.608 +
   1.609 +    UConverter_toUnicode_CompoundText_OFFSETS,
   1.610 +    UConverter_toUnicode_CompoundText_OFFSETS,
   1.611 +    UConverter_fromUnicode_CompoundText_OFFSETS,
   1.612 +    UConverter_fromUnicode_CompoundText_OFFSETS,
   1.613 +    NULL,
   1.614 +
   1.615 +    NULL,
   1.616 +    _CompoundTextgetName,
   1.617 +    NULL,
   1.618 +    NULL,
   1.619 +    _CompoundText_GetUnicodeSet
   1.620 +};
   1.621 +static const UConverterStaticData _CompoundTextStaticData = {
   1.622 +    sizeof(UConverterStaticData),
   1.623 +    "COMPOUND_TEXT",
   1.624 +    0,
   1.625 +    UCNV_IBM,
   1.626 +    UCNV_COMPOUND_TEXT,
   1.627 +    1,
   1.628 +    6,
   1.629 +    { 0xef, 0, 0, 0 },
   1.630 +    1,
   1.631 +    FALSE,
   1.632 +    FALSE,
   1.633 +    0,
   1.634 +    0,
   1.635 +    { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 } /* reserved */
   1.636 +};
   1.637 +const UConverterSharedData _CompoundTextData = {
   1.638 +    sizeof(UConverterSharedData),
   1.639 +    ~((uint32_t) 0),
   1.640 +    NULL,
   1.641 +    NULL,
   1.642 +    &_CompoundTextStaticData,
   1.643 +    FALSE,
   1.644 +    &_CompoundTextImpl,
   1.645 +    0
   1.646 +};
   1.647 +
   1.648 +#endif /* #if !UCONFIG_NO_LEGACY_CONVERSION */

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