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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 19:33:14 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 19:33:14 +0000
commit36d22d82aa202bb199967e9512281e9a53db42c9 (patch)
tree105e8c98ddea1c1e4784a60a5a6410fa416be2de /intl/icu/source/common/ucnvisci.cpp
parentInitial commit. (diff)
downloadfirefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.tar.xz
firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.zip
Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'intl/icu/source/common/ucnvisci.cpp')
-rw-r--r--intl/icu/source/common/ucnvisci.cpp1635
1 files changed, 1635 insertions, 0 deletions
diff --git a/intl/icu/source/common/ucnvisci.cpp b/intl/icu/source/common/ucnvisci.cpp
new file mode 100644
index 0000000000..507a50c892
--- /dev/null
+++ b/intl/icu/source/common/ucnvisci.cpp
@@ -0,0 +1,1635 @@
+// © 2016 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html
+/*
+**********************************************************************
+* Copyright (C) 2000-2016, International Business Machines
+* Corporation and others. All Rights Reserved.
+**********************************************************************
+* file name: ucnvisci.c
+* encoding: UTF-8
+* tab size: 8 (not used)
+* indentation:4
+*
+* created on: 2001JUN26
+* created by: Ram Viswanadha
+*
+* Date Name Description
+* 24/7/2001 Ram Added support for EXT character handling
+*/
+
+#include "unicode/utypes.h"
+
+#if !UCONFIG_NO_CONVERSION && !UCONFIG_NO_LEGACY_CONVERSION && !UCONFIG_ONLY_HTML_CONVERSION
+
+#include "unicode/ucnv.h"
+#include "unicode/ucnv_cb.h"
+#include "unicode/utf16.h"
+#include "cmemory.h"
+#include "ucnv_bld.h"
+#include "ucnv_cnv.h"
+#include "cstring.h"
+#include "uassert.h"
+
+#define UCNV_OPTIONS_VERSION_MASK 0xf
+#define NUKTA 0x093c
+#define HALANT 0x094d
+#define ZWNJ 0x200c /* Zero Width Non Joiner */
+#define ZWJ 0x200d /* Zero width Joiner */
+#define INVALID_CHAR 0xffff
+#define ATR 0xEF /* Attribute code */
+#define EXT 0xF0 /* Extension code */
+#define DANDA 0x0964
+#define DOUBLE_DANDA 0x0965
+#define ISCII_NUKTA 0xE9
+#define ISCII_HALANT 0xE8
+#define ISCII_DANDA 0xEA
+#define ISCII_INV 0xD9
+#define ISCII_VOWEL_SIGN_E 0xE0
+#define INDIC_BLOCK_BEGIN 0x0900
+#define INDIC_BLOCK_END 0x0D7F
+#define INDIC_RANGE (INDIC_BLOCK_END - INDIC_BLOCK_BEGIN)
+#define VOCALLIC_RR 0x0931
+#define LF 0x0A
+#define ASCII_END 0xA0
+#define NO_CHAR_MARKER 0xFFFE
+#define TELUGU_DELTA DELTA * TELUGU
+#define DEV_ABBR_SIGN 0x0970
+#define DEV_ANUDATTA 0x0952
+#define EXT_RANGE_BEGIN 0xA1
+#define EXT_RANGE_END 0xEE
+
+#define PNJ_DELTA 0x0100
+#define PNJ_BINDI 0x0A02
+#define PNJ_TIPPI 0x0A70
+#define PNJ_SIGN_VIRAMA 0x0A4D
+#define PNJ_ADHAK 0x0A71
+#define PNJ_HA 0x0A39
+#define PNJ_RRA 0x0A5C
+
+typedef enum {
+ DEVANAGARI =0,
+ BENGALI,
+ GURMUKHI,
+ GUJARATI,
+ ORIYA,
+ TAMIL,
+ TELUGU,
+ KANNADA,
+ MALAYALAM,
+ DELTA=0x80
+}UniLang;
+
+/**
+ * Enumeration for switching code pages if <ATR>+<one of below values>
+ * is encountered
+ */
+typedef enum {
+ DEF = 0x40,
+ RMN = 0x41,
+ DEV = 0x42,
+ BNG = 0x43,
+ TML = 0x44,
+ TLG = 0x45,
+ ASM = 0x46,
+ ORI = 0x47,
+ KND = 0x48,
+ MLM = 0x49,
+ GJR = 0x4A,
+ PNJ = 0x4B,
+ ARB = 0x71,
+ PES = 0x72,
+ URD = 0x73,
+ SND = 0x74,
+ KSM = 0x75,
+ PST = 0x76
+}ISCIILang;
+
+typedef enum {
+ DEV_MASK =0x80,
+ PNJ_MASK =0x40,
+ GJR_MASK =0x20,
+ ORI_MASK =0x10,
+ BNG_MASK =0x08,
+ KND_MASK =0x04,
+ MLM_MASK =0x02,
+ TML_MASK =0x01,
+ ZERO =0x00
+}MaskEnum;
+
+#define ISCII_CNV_PREFIX "ISCII,version="
+
+typedef struct {
+ char16_t contextCharToUnicode; /* previous Unicode codepoint for contextual analysis */
+ char16_t contextCharFromUnicode; /* previous Unicode codepoint for contextual analysis */
+ uint16_t defDeltaToUnicode; /* delta for switching to default state when DEF is encountered */
+ uint16_t currentDeltaFromUnicode; /* current delta in Indic block */
+ uint16_t currentDeltaToUnicode; /* current delta in Indic block */
+ MaskEnum currentMaskFromUnicode; /* mask for current state in toUnicode */
+ MaskEnum currentMaskToUnicode; /* mask for current state in toUnicode */
+ MaskEnum defMaskToUnicode; /* mask for default state in toUnicode */
+ UBool isFirstBuffer; /* boolean for fromUnicode to see if we need to announce the first script */
+ UBool resetToDefaultToUnicode; /* boolean for resetting to default delta and mask when a newline is encountered*/
+ char name[sizeof(ISCII_CNV_PREFIX) + 1];
+ UChar32 prevToUnicodeStatus; /* Hold the previous toUnicodeStatus. This is necessary because we may need to know the last two code points. */
+} UConverterDataISCII;
+
+typedef struct LookupDataStruct {
+ UniLang uniLang;
+ MaskEnum maskEnum;
+ ISCIILang isciiLang;
+} LookupDataStruct;
+
+static const LookupDataStruct lookupInitialData[]={
+ { DEVANAGARI, DEV_MASK, DEV },
+ { BENGALI, BNG_MASK, BNG },
+ { GURMUKHI, PNJ_MASK, PNJ },
+ { GUJARATI, GJR_MASK, GJR },
+ { ORIYA, ORI_MASK, ORI },
+ { TAMIL, TML_MASK, TML },
+ { TELUGU, KND_MASK, TLG },
+ { KANNADA, KND_MASK, KND },
+ { MALAYALAM, MLM_MASK, MLM }
+};
+
+/*
+ * For special handling of certain Gurmukhi characters.
+ * Bit 0 (value 1): PNJ consonant
+ * Bit 1 (value 2): PNJ Bindi Tippi
+ */
+static const uint8_t pnjMap[80] = {
+ /* 0A00..0A0F */
+ 0, 0, 0, 0, 0, 2, 0, 2, 0, 0, 0, 0, 0, 0, 0, 0,
+ /* 0A10..0A1F */
+ 0, 0, 0, 0, 0, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
+ /* 0A20..0A2F */
+ 3, 3, 3, 3, 3, 3, 3, 3, 3, 0, 3, 3, 3, 3, 3, 3,
+ /* 0A30..0A3F */
+ 3, 0, 0, 0, 0, 3, 3, 0, 3, 3, 0, 0, 0, 0, 0, 2,
+ /* 0A40..0A4F */
+ 0, 2, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
+};
+
+static UBool
+isPNJConsonant(UChar32 c) {
+ if (c < 0xa00 || 0xa50 <= c) {
+ return false;
+ } else {
+ return (UBool)(pnjMap[c - 0xa00] & 1);
+ }
+}
+
+static UBool
+isPNJBindiTippi(UChar32 c) {
+ if (c < 0xa00 || 0xa50 <= c) {
+ return false;
+ } else {
+ return (UBool)(pnjMap[c - 0xa00] >> 1);
+ }
+}
+U_CDECL_BEGIN
+static void U_CALLCONV
+_ISCIIOpen(UConverter *cnv, UConverterLoadArgs *pArgs, UErrorCode *errorCode) {
+ if(pArgs->onlyTestIsLoadable) {
+ return;
+ }
+
+ cnv->extraInfo = uprv_malloc(sizeof(UConverterDataISCII));
+
+ if (cnv->extraInfo != nullptr) {
+ int32_t len=0;
+ UConverterDataISCII *converterData=
+ (UConverterDataISCII *) cnv->extraInfo;
+ converterData->contextCharToUnicode=NO_CHAR_MARKER;
+ cnv->toUnicodeStatus = missingCharMarker;
+ converterData->contextCharFromUnicode=0x0000;
+ converterData->resetToDefaultToUnicode=false;
+ /* check if the version requested is supported */
+ if ((pArgs->options & UCNV_OPTIONS_VERSION_MASK) < 9) {
+ /* initialize state variables */
+ converterData->currentDeltaFromUnicode
+ = converterData->currentDeltaToUnicode
+ = converterData->defDeltaToUnicode = (uint16_t)(lookupInitialData[pArgs->options & UCNV_OPTIONS_VERSION_MASK].uniLang * DELTA);
+
+ converterData->currentMaskFromUnicode
+ = converterData->currentMaskToUnicode
+ = converterData->defMaskToUnicode = lookupInitialData[pArgs->options & UCNV_OPTIONS_VERSION_MASK].maskEnum;
+
+ converterData->isFirstBuffer=true;
+ (void)uprv_strcpy(converterData->name, ISCII_CNV_PREFIX);
+ len = (int32_t)uprv_strlen(converterData->name);
+ converterData->name[len]= (char)((pArgs->options & UCNV_OPTIONS_VERSION_MASK) + '0');
+ converterData->name[len+1]=0;
+
+ converterData->prevToUnicodeStatus = 0x0000;
+ } else {
+ uprv_free(cnv->extraInfo);
+ cnv->extraInfo = nullptr;
+ *errorCode = U_ILLEGAL_ARGUMENT_ERROR;
+ }
+
+ } else {
+ *errorCode =U_MEMORY_ALLOCATION_ERROR;
+ }
+}
+
+static void U_CALLCONV
+_ISCIIClose(UConverter *cnv) {
+ if (cnv->extraInfo!=nullptr) {
+ if (!cnv->isExtraLocal) {
+ uprv_free(cnv->extraInfo);
+ }
+ cnv->extraInfo=nullptr;
+ }
+}
+
+static const char* U_CALLCONV
+_ISCIIgetName(const UConverter* cnv) {
+ if (cnv->extraInfo) {
+ UConverterDataISCII* myData= (UConverterDataISCII*)cnv->extraInfo;
+ return myData->name;
+ }
+ return nullptr;
+}
+
+static void U_CALLCONV
+_ISCIIReset(UConverter *cnv, UConverterResetChoice choice) {
+ UConverterDataISCII* data =(UConverterDataISCII *) (cnv->extraInfo);
+ if (choice<=UCNV_RESET_TO_UNICODE) {
+ cnv->toUnicodeStatus = missingCharMarker;
+ cnv->mode=0;
+ data->currentDeltaToUnicode=data->defDeltaToUnicode;
+ data->currentMaskToUnicode = data->defMaskToUnicode;
+ data->contextCharToUnicode=NO_CHAR_MARKER;
+ data->prevToUnicodeStatus = 0x0000;
+ }
+ if (choice!=UCNV_RESET_TO_UNICODE) {
+ cnv->fromUChar32=0x0000;
+ data->contextCharFromUnicode=0x00;
+ data->currentMaskFromUnicode=data->defMaskToUnicode;
+ data->currentDeltaFromUnicode=data->defDeltaToUnicode;
+ data->isFirstBuffer=true;
+ data->resetToDefaultToUnicode=false;
+ }
+}
+
+/**
+ * The values in validity table are indexed by the lower bits of Unicode
+ * range 0x0900 - 0x09ff. The values have a structure like:
+ * ---------------------------------------------------------------
+ * | DEV | PNJ | GJR | ORI | BNG | TLG | MLM | TML |
+ * | | | | | ASM | KND | | |
+ * ---------------------------------------------------------------
+ * If a code point is valid in a particular script
+ * then that bit is turned on
+ *
+ * Unicode does not distinguish between Bengali and Assamese so we use 1 bit for
+ * to represent these languages
+ *
+ * Telugu and Kannada have same codepoints except for Vocallic_RR which we special case
+ * and combine and use 1 bit to represent these languages.
+ *
+ * TODO: It is probably easier to understand and maintain to change this
+ * to use uint16_t and give each of the 9 Unicode/script blocks its own bit.
+ */
+
+static const uint8_t validityTable[128] = {
+/* This state table is tool generated please do not edit unless you know exactly what you are doing */
+/* Note: This table was edited to mirror the Windows XP implementation */
+/*ISCII:Valid:Unicode */
+/*0xa0 : 0x00: 0x900 */ ZERO + ZERO + ZERO + ZERO + ZERO + ZERO + ZERO + ZERO ,
+/*0xa1 : 0xb8: 0x901 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + ZERO + ZERO + ZERO ,
+/*0xa2 : 0xfe: 0x902 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK ,
+/*0xa3 : 0xbf: 0x903 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK ,
+/*0x00 : 0x00: 0x904 */ DEV_MASK + ZERO + ZERO + ZERO + ZERO + ZERO + ZERO + ZERO ,
+/*0xa4 : 0xff: 0x905 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK ,
+/*0xa5 : 0xff: 0x906 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK ,
+/*0xa6 : 0xff: 0x907 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK ,
+/*0xa7 : 0xff: 0x908 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK ,
+/*0xa8 : 0xff: 0x909 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK ,
+/*0xa9 : 0xff: 0x90a */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK ,
+/*0xaa : 0xfe: 0x90b */ DEV_MASK + ZERO + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + ZERO ,
+/*0x00 : 0x00: 0x90c */ DEV_MASK + ZERO + ZERO + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + ZERO ,
+/*0xae : 0x80: 0x90d */ DEV_MASK + ZERO + GJR_MASK + ZERO + ZERO + ZERO + ZERO + ZERO ,
+/*0xab : 0x87: 0x90e */ DEV_MASK + ZERO + ZERO + ZERO + ZERO + KND_MASK + MLM_MASK + TML_MASK ,
+/*0xac : 0xff: 0x90f */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK ,
+/*0xad : 0xff: 0x910 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK ,
+/*0xb2 : 0x80: 0x911 */ DEV_MASK + ZERO + GJR_MASK + ZERO + ZERO + ZERO + ZERO + ZERO ,
+/*0xaf : 0x87: 0x912 */ DEV_MASK + ZERO + ZERO + ZERO + ZERO + KND_MASK + MLM_MASK + TML_MASK ,
+/*0xb0 : 0xff: 0x913 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK ,
+/*0xb1 : 0xff: 0x914 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK ,
+/*0xb3 : 0xff: 0x915 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK ,
+/*0xb4 : 0xfe: 0x916 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + ZERO ,
+/*0xb5 : 0xfe: 0x917 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + ZERO ,
+/*0xb6 : 0xfe: 0x918 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + ZERO ,
+/*0xb7 : 0xff: 0x919 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK ,
+/*0xb8 : 0xff: 0x91a */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK ,
+/*0xb9 : 0xfe: 0x91b */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + ZERO ,
+/*0xba : 0xff: 0x91c */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK ,
+/*0xbb : 0xfe: 0x91d */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + ZERO ,
+/*0xbc : 0xff: 0x91e */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK ,
+/*0xbd : 0xff: 0x91f */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK ,
+/*0xbe : 0xfe: 0x920 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + ZERO ,
+/*0xbf : 0xfe: 0x921 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + ZERO ,
+/*0xc0 : 0xfe: 0x922 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + ZERO ,
+/*0xc1 : 0xff: 0x923 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK ,
+/*0xc2 : 0xff: 0x924 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK ,
+/*0xc3 : 0xfe: 0x925 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + ZERO ,
+/*0xc4 : 0xfe: 0x926 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + ZERO ,
+/*0xc5 : 0xfe: 0x927 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + ZERO ,
+/*0xc6 : 0xff: 0x928 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK ,
+/*0xc7 : 0x81: 0x929 */ DEV_MASK + ZERO + ZERO + ZERO + ZERO + ZERO + ZERO + TML_MASK ,
+/*0xc8 : 0xff: 0x92a */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK ,
+/*0xc9 : 0xfe: 0x92b */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + ZERO ,
+/*0xca : 0xfe: 0x92c */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + ZERO ,
+/*0xcb : 0xfe: 0x92d */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + ZERO ,
+/*0xcc : 0xfe: 0x92e */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK ,
+/*0xcd : 0xff: 0x92f */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK ,
+/*0xcf : 0xff: 0x930 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK ,
+/*0xd0 : 0x87: 0x931 */ DEV_MASK + ZERO + ZERO + ZERO + ZERO + ZERO + MLM_MASK + TML_MASK ,
+/*0xd1 : 0xff: 0x932 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK ,
+/*0xd2 : 0xb7: 0x933 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + ZERO + KND_MASK + MLM_MASK + TML_MASK ,
+/*0xd3 : 0x83: 0x934 */ DEV_MASK + ZERO + ZERO + ZERO + ZERO + ZERO + MLM_MASK + TML_MASK ,
+/*0xd4 : 0xff: 0x935 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + ZERO + KND_MASK + MLM_MASK + TML_MASK ,
+/*0xd5 : 0xfe: 0x936 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + ZERO ,
+/*0xd6 : 0xbf: 0x937 */ DEV_MASK + ZERO + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK ,
+/*0xd7 : 0xff: 0x938 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK ,
+/*0xd8 : 0xff: 0x939 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK ,
+/*0x00 : 0x00: 0x93A */ ZERO + ZERO + ZERO + ZERO + ZERO + ZERO + ZERO + ZERO ,
+/*0x00 : 0x00: 0x93B */ ZERO + ZERO + ZERO + ZERO + ZERO + ZERO + ZERO + ZERO ,
+/*0xe9 : 0xda: 0x93c */ DEV_MASK + PNJ_MASK + ZERO + ORI_MASK + BNG_MASK + ZERO + ZERO + ZERO ,
+/*0x00 : 0x00: 0x93d */ DEV_MASK + ZERO + ZERO + ZERO + ZERO + ZERO + ZERO + ZERO ,
+/*0xda : 0xff: 0x93e */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK ,
+/*0xdb : 0xff: 0x93f */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK ,
+/*0xdc : 0xff: 0x940 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK ,
+/*0xdd : 0xff: 0x941 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK ,
+/*0xde : 0xff: 0x942 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK ,
+/*0xdf : 0xbe: 0x943 */ DEV_MASK + ZERO + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + ZERO ,
+/*0x00 : 0x00: 0x944 */ DEV_MASK + ZERO + GJR_MASK + ZERO + BNG_MASK + KND_MASK + ZERO + ZERO ,
+/*0xe3 : 0x80: 0x945 */ DEV_MASK + ZERO + GJR_MASK + ZERO + ZERO + ZERO + ZERO + ZERO ,
+/*0xe0 : 0x87: 0x946 */ DEV_MASK + ZERO + ZERO + ZERO + ZERO + KND_MASK + MLM_MASK + TML_MASK ,
+/*0xe1 : 0xff: 0x947 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK ,
+/*0xe2 : 0xff: 0x948 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK ,
+/*0xe7 : 0x80: 0x949 */ DEV_MASK + ZERO + GJR_MASK + ZERO + ZERO + ZERO + ZERO + ZERO ,
+/*0xe4 : 0x87: 0x94a */ DEV_MASK + ZERO + ZERO + ZERO + ZERO + KND_MASK + MLM_MASK + TML_MASK ,
+/*0xe5 : 0xff: 0x94b */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK ,
+/*0xe6 : 0xff: 0x94c */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK ,
+/*0xe8 : 0xff: 0x94d */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK ,
+/*0xec : 0x00: 0x94e */ ZERO + ZERO + ZERO + ZERO + ZERO + ZERO + ZERO + ZERO ,
+/*0xed : 0x00: 0x94f */ ZERO + ZERO + ZERO + ZERO + ZERO + ZERO + ZERO + ZERO ,
+/*0x00 : 0x00: 0x950 */ DEV_MASK + ZERO + GJR_MASK + ZERO + ZERO + ZERO + ZERO + ZERO ,
+/*0x00 : 0x00: 0x951 */ DEV_MASK + ZERO + ZERO + ZERO + ZERO + ZERO + ZERO + ZERO ,
+/*0x00 : 0x00: 0x952 */ DEV_MASK + ZERO + ZERO + ZERO + ZERO + ZERO + ZERO + ZERO ,
+/*0x00 : 0x00: 0x953 */ DEV_MASK + ZERO + ZERO + ZERO + ZERO + ZERO + ZERO + ZERO ,
+/*0x00 : 0x00: 0x954 */ DEV_MASK + ZERO + ZERO + ZERO + ZERO + ZERO + ZERO + ZERO ,
+/*0x00 : 0x00: 0x955 */ ZERO + ZERO + ZERO + ZERO + ZERO + KND_MASK + ZERO + ZERO ,
+/*0x00 : 0x00: 0x956 */ ZERO + ZERO + ZERO + ORI_MASK + ZERO + KND_MASK + ZERO + ZERO ,
+/*0x00 : 0x00: 0x957 */ ZERO + ZERO + ZERO + ORI_MASK + BNG_MASK + ZERO + MLM_MASK + ZERO ,
+/*0x00 : 0x00: 0x958 */ DEV_MASK + ZERO + ZERO + ZERO + ZERO + ZERO + ZERO + ZERO ,
+/*0x00 : 0x00: 0x959 */ DEV_MASK + PNJ_MASK + ZERO + ZERO + ZERO + ZERO + ZERO + ZERO ,
+/*0x00 : 0x00: 0x95a */ DEV_MASK + PNJ_MASK + ZERO + ZERO + ZERO + ZERO + ZERO + ZERO ,
+/*0x00 : 0x00: 0x95b */ DEV_MASK + PNJ_MASK + ZERO + ZERO + ZERO + ZERO + ZERO + ZERO ,
+/*0x00 : 0x00: 0x95c */ DEV_MASK + PNJ_MASK + ZERO + ZERO + BNG_MASK + ZERO + ZERO + ZERO ,
+/*0x00 : 0x00: 0x95d */ DEV_MASK + ZERO + ZERO + ORI_MASK + BNG_MASK + ZERO + ZERO + ZERO ,
+/*0x00 : 0x00: 0x95e */ DEV_MASK + PNJ_MASK + ZERO + ZERO + ZERO + ZERO + ZERO + ZERO ,
+/*0xce : 0x98: 0x95f */ DEV_MASK + ZERO + ZERO + ORI_MASK + BNG_MASK + ZERO + ZERO + ZERO ,
+/*0x00 : 0x00: 0x960 */ DEV_MASK + ZERO + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + ZERO ,
+/*0x00 : 0x00: 0x961 */ DEV_MASK + ZERO + ZERO + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + ZERO ,
+/*0x00 : 0x00: 0x962 */ DEV_MASK + ZERO + ZERO + ZERO + BNG_MASK + ZERO + ZERO + ZERO ,
+/*0x00 : 0x00: 0x963 */ DEV_MASK + ZERO + ZERO + ZERO + BNG_MASK + ZERO + ZERO + ZERO ,
+/*0xea : 0xf8: 0x964 */ DEV_MASK + ZERO + ZERO + ZERO + ZERO + ZERO + ZERO + ZERO ,
+/*0xeaea : 0x00: 0x965*/ DEV_MASK + ZERO + ZERO + ZERO + ZERO + ZERO + ZERO + ZERO ,
+/*0xf1 : 0xff: 0x966 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK ,
+/*0xf2 : 0xff: 0x967 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK ,
+/*0xf3 : 0xff: 0x968 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK ,
+/*0xf4 : 0xff: 0x969 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK ,
+/*0xf5 : 0xff: 0x96a */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK ,
+/*0xf6 : 0xff: 0x96b */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK ,
+/*0xf7 : 0xff: 0x96c */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK ,
+/*0xf8 : 0xff: 0x96d */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK ,
+/*0xf9 : 0xff: 0x96e */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK ,
+/*0xfa : 0xff: 0x96f */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK ,
+/*0x00 : 0x80: 0x970 */ DEV_MASK + PNJ_MASK + ZERO + ZERO + ZERO + ZERO + ZERO + ZERO ,
+/*
+ * The length of the array is 128 to provide values for 0x900..0x97f.
+ * The last 15 entries for 0x971..0x97f of the validity table are all zero
+ * because no Indic script uses such Unicode code points.
+ */
+/*0x00 : 0x00: 0x9yz */ ZERO + ZERO + ZERO + ZERO + ZERO + ZERO + ZERO + ZERO
+};
+
+static const uint16_t fromUnicodeTable[128]={
+ 0x00a0 ,/* 0x0900 */
+ 0x00a1 ,/* 0x0901 */
+ 0x00a2 ,/* 0x0902 */
+ 0x00a3 ,/* 0x0903 */
+ 0xa4e0 ,/* 0x0904 */
+ 0x00a4 ,/* 0x0905 */
+ 0x00a5 ,/* 0x0906 */
+ 0x00a6 ,/* 0x0907 */
+ 0x00a7 ,/* 0x0908 */
+ 0x00a8 ,/* 0x0909 */
+ 0x00a9 ,/* 0x090a */
+ 0x00aa ,/* 0x090b */
+ 0xA6E9 ,/* 0x090c */
+ 0x00ae ,/* 0x090d */
+ 0x00ab ,/* 0x090e */
+ 0x00ac ,/* 0x090f */
+ 0x00ad ,/* 0x0910 */
+ 0x00b2 ,/* 0x0911 */
+ 0x00af ,/* 0x0912 */
+ 0x00b0 ,/* 0x0913 */
+ 0x00b1 ,/* 0x0914 */
+ 0x00b3 ,/* 0x0915 */
+ 0x00b4 ,/* 0x0916 */
+ 0x00b5 ,/* 0x0917 */
+ 0x00b6 ,/* 0x0918 */
+ 0x00b7 ,/* 0x0919 */
+ 0x00b8 ,/* 0x091a */
+ 0x00b9 ,/* 0x091b */
+ 0x00ba ,/* 0x091c */
+ 0x00bb ,/* 0x091d */
+ 0x00bc ,/* 0x091e */
+ 0x00bd ,/* 0x091f */
+ 0x00be ,/* 0x0920 */
+ 0x00bf ,/* 0x0921 */
+ 0x00c0 ,/* 0x0922 */
+ 0x00c1 ,/* 0x0923 */
+ 0x00c2 ,/* 0x0924 */
+ 0x00c3 ,/* 0x0925 */
+ 0x00c4 ,/* 0x0926 */
+ 0x00c5 ,/* 0x0927 */
+ 0x00c6 ,/* 0x0928 */
+ 0x00c7 ,/* 0x0929 */
+ 0x00c8 ,/* 0x092a */
+ 0x00c9 ,/* 0x092b */
+ 0x00ca ,/* 0x092c */
+ 0x00cb ,/* 0x092d */
+ 0x00cc ,/* 0x092e */
+ 0x00cd ,/* 0x092f */
+ 0x00cf ,/* 0x0930 */
+ 0x00d0 ,/* 0x0931 */
+ 0x00d1 ,/* 0x0932 */
+ 0x00d2 ,/* 0x0933 */
+ 0x00d3 ,/* 0x0934 */
+ 0x00d4 ,/* 0x0935 */
+ 0x00d5 ,/* 0x0936 */
+ 0x00d6 ,/* 0x0937 */
+ 0x00d7 ,/* 0x0938 */
+ 0x00d8 ,/* 0x0939 */
+ 0xFFFF ,/* 0x093A */
+ 0xFFFF ,/* 0x093B */
+ 0x00e9 ,/* 0x093c */
+ 0xEAE9 ,/* 0x093d */
+ 0x00da ,/* 0x093e */
+ 0x00db ,/* 0x093f */
+ 0x00dc ,/* 0x0940 */
+ 0x00dd ,/* 0x0941 */
+ 0x00de ,/* 0x0942 */
+ 0x00df ,/* 0x0943 */
+ 0xDFE9 ,/* 0x0944 */
+ 0x00e3 ,/* 0x0945 */
+ 0x00e0 ,/* 0x0946 */
+ 0x00e1 ,/* 0x0947 */
+ 0x00e2 ,/* 0x0948 */
+ 0x00e7 ,/* 0x0949 */
+ 0x00e4 ,/* 0x094a */
+ 0x00e5 ,/* 0x094b */
+ 0x00e6 ,/* 0x094c */
+ 0x00e8 ,/* 0x094d */
+ 0x00ec ,/* 0x094e */
+ 0x00ed ,/* 0x094f */
+ 0xA1E9 ,/* 0x0950 */ /* OM Symbol */
+ 0xFFFF ,/* 0x0951 */
+ 0xF0B8 ,/* 0x0952 */
+ 0xFFFF ,/* 0x0953 */
+ 0xFFFF ,/* 0x0954 */
+ 0xFFFF ,/* 0x0955 */
+ 0xFFFF ,/* 0x0956 */
+ 0xFFFF ,/* 0x0957 */
+ 0xb3e9 ,/* 0x0958 */
+ 0xb4e9 ,/* 0x0959 */
+ 0xb5e9 ,/* 0x095a */
+ 0xbae9 ,/* 0x095b */
+ 0xbfe9 ,/* 0x095c */
+ 0xC0E9 ,/* 0x095d */
+ 0xc9e9 ,/* 0x095e */
+ 0x00ce ,/* 0x095f */
+ 0xAAe9 ,/* 0x0960 */
+ 0xA7E9 ,/* 0x0961 */
+ 0xDBE9 ,/* 0x0962 */
+ 0xDCE9 ,/* 0x0963 */
+ 0x00ea ,/* 0x0964 */
+ 0xeaea ,/* 0x0965 */
+ 0x00f1 ,/* 0x0966 */
+ 0x00f2 ,/* 0x0967 */
+ 0x00f3 ,/* 0x0968 */
+ 0x00f4 ,/* 0x0969 */
+ 0x00f5 ,/* 0x096a */
+ 0x00f6 ,/* 0x096b */
+ 0x00f7 ,/* 0x096c */
+ 0x00f8 ,/* 0x096d */
+ 0x00f9 ,/* 0x096e */
+ 0x00fa ,/* 0x096f */
+ 0xF0BF ,/* 0x0970 */
+ 0xFFFF ,/* 0x0971 */
+ 0xFFFF ,/* 0x0972 */
+ 0xFFFF ,/* 0x0973 */
+ 0xFFFF ,/* 0x0974 */
+ 0xFFFF ,/* 0x0975 */
+ 0xFFFF ,/* 0x0976 */
+ 0xFFFF ,/* 0x0977 */
+ 0xFFFF ,/* 0x0978 */
+ 0xFFFF ,/* 0x0979 */
+ 0xFFFF ,/* 0x097a */
+ 0xFFFF ,/* 0x097b */
+ 0xFFFF ,/* 0x097c */
+ 0xFFFF ,/* 0x097d */
+ 0xFFFF ,/* 0x097e */
+ 0xFFFF ,/* 0x097f */
+};
+static const uint16_t toUnicodeTable[256]={
+ 0x0000,/* 0x00 */
+ 0x0001,/* 0x01 */
+ 0x0002,/* 0x02 */
+ 0x0003,/* 0x03 */
+ 0x0004,/* 0x04 */
+ 0x0005,/* 0x05 */
+ 0x0006,/* 0x06 */
+ 0x0007,/* 0x07 */
+ 0x0008,/* 0x08 */
+ 0x0009,/* 0x09 */
+ 0x000a,/* 0x0a */
+ 0x000b,/* 0x0b */
+ 0x000c,/* 0x0c */
+ 0x000d,/* 0x0d */
+ 0x000e,/* 0x0e */
+ 0x000f,/* 0x0f */
+ 0x0010,/* 0x10 */
+ 0x0011,/* 0x11 */
+ 0x0012,/* 0x12 */
+ 0x0013,/* 0x13 */
+ 0x0014,/* 0x14 */
+ 0x0015,/* 0x15 */
+ 0x0016,/* 0x16 */
+ 0x0017,/* 0x17 */
+ 0x0018,/* 0x18 */
+ 0x0019,/* 0x19 */
+ 0x001a,/* 0x1a */
+ 0x001b,/* 0x1b */
+ 0x001c,/* 0x1c */
+ 0x001d,/* 0x1d */
+ 0x001e,/* 0x1e */
+ 0x001f,/* 0x1f */
+ 0x0020,/* 0x20 */
+ 0x0021,/* 0x21 */
+ 0x0022,/* 0x22 */
+ 0x0023,/* 0x23 */
+ 0x0024,/* 0x24 */
+ 0x0025,/* 0x25 */
+ 0x0026,/* 0x26 */
+ 0x0027,/* 0x27 */
+ 0x0028,/* 0x28 */
+ 0x0029,/* 0x29 */
+ 0x002a,/* 0x2a */
+ 0x002b,/* 0x2b */
+ 0x002c,/* 0x2c */
+ 0x002d,/* 0x2d */
+ 0x002e,/* 0x2e */
+ 0x002f,/* 0x2f */
+ 0x0030,/* 0x30 */
+ 0x0031,/* 0x31 */
+ 0x0032,/* 0x32 */
+ 0x0033,/* 0x33 */
+ 0x0034,/* 0x34 */
+ 0x0035,/* 0x35 */
+ 0x0036,/* 0x36 */
+ 0x0037,/* 0x37 */
+ 0x0038,/* 0x38 */
+ 0x0039,/* 0x39 */
+ 0x003A,/* 0x3A */
+ 0x003B,/* 0x3B */
+ 0x003c,/* 0x3c */
+ 0x003d,/* 0x3d */
+ 0x003e,/* 0x3e */
+ 0x003f,/* 0x3f */
+ 0x0040,/* 0x40 */
+ 0x0041,/* 0x41 */
+ 0x0042,/* 0x42 */
+ 0x0043,/* 0x43 */
+ 0x0044,/* 0x44 */
+ 0x0045,/* 0x45 */
+ 0x0046,/* 0x46 */
+ 0x0047,/* 0x47 */
+ 0x0048,/* 0x48 */
+ 0x0049,/* 0x49 */
+ 0x004a,/* 0x4a */
+ 0x004b,/* 0x4b */
+ 0x004c,/* 0x4c */
+ 0x004d,/* 0x4d */
+ 0x004e,/* 0x4e */
+ 0x004f,/* 0x4f */
+ 0x0050,/* 0x50 */
+ 0x0051,/* 0x51 */
+ 0x0052,/* 0x52 */
+ 0x0053,/* 0x53 */
+ 0x0054,/* 0x54 */
+ 0x0055,/* 0x55 */
+ 0x0056,/* 0x56 */
+ 0x0057,/* 0x57 */
+ 0x0058,/* 0x58 */
+ 0x0059,/* 0x59 */
+ 0x005a,/* 0x5a */
+ 0x005b,/* 0x5b */
+ 0x005c,/* 0x5c */
+ 0x005d,/* 0x5d */
+ 0x005e,/* 0x5e */
+ 0x005f,/* 0x5f */
+ 0x0060,/* 0x60 */
+ 0x0061,/* 0x61 */
+ 0x0062,/* 0x62 */
+ 0x0063,/* 0x63 */
+ 0x0064,/* 0x64 */
+ 0x0065,/* 0x65 */
+ 0x0066,/* 0x66 */
+ 0x0067,/* 0x67 */
+ 0x0068,/* 0x68 */
+ 0x0069,/* 0x69 */
+ 0x006a,/* 0x6a */
+ 0x006b,/* 0x6b */
+ 0x006c,/* 0x6c */
+ 0x006d,/* 0x6d */
+ 0x006e,/* 0x6e */
+ 0x006f,/* 0x6f */
+ 0x0070,/* 0x70 */
+ 0x0071,/* 0x71 */
+ 0x0072,/* 0x72 */
+ 0x0073,/* 0x73 */
+ 0x0074,/* 0x74 */
+ 0x0075,/* 0x75 */
+ 0x0076,/* 0x76 */
+ 0x0077,/* 0x77 */
+ 0x0078,/* 0x78 */
+ 0x0079,/* 0x79 */
+ 0x007a,/* 0x7a */
+ 0x007b,/* 0x7b */
+ 0x007c,/* 0x7c */
+ 0x007d,/* 0x7d */
+ 0x007e,/* 0x7e */
+ 0x007f,/* 0x7f */
+ 0x0080,/* 0x80 */
+ 0x0081,/* 0x81 */
+ 0x0082,/* 0x82 */
+ 0x0083,/* 0x83 */
+ 0x0084,/* 0x84 */
+ 0x0085,/* 0x85 */
+ 0x0086,/* 0x86 */
+ 0x0087,/* 0x87 */
+ 0x0088,/* 0x88 */
+ 0x0089,/* 0x89 */
+ 0x008a,/* 0x8a */
+ 0x008b,/* 0x8b */
+ 0x008c,/* 0x8c */
+ 0x008d,/* 0x8d */
+ 0x008e,/* 0x8e */
+ 0x008f,/* 0x8f */
+ 0x0090,/* 0x90 */
+ 0x0091,/* 0x91 */
+ 0x0092,/* 0x92 */
+ 0x0093,/* 0x93 */
+ 0x0094,/* 0x94 */
+ 0x0095,/* 0x95 */
+ 0x0096,/* 0x96 */
+ 0x0097,/* 0x97 */
+ 0x0098,/* 0x98 */
+ 0x0099,/* 0x99 */
+ 0x009a,/* 0x9a */
+ 0x009b,/* 0x9b */
+ 0x009c,/* 0x9c */
+ 0x009d,/* 0x9d */
+ 0x009e,/* 0x9e */
+ 0x009f,/* 0x9f */
+ 0x00A0,/* 0xa0 */
+ 0x0901,/* 0xa1 */
+ 0x0902,/* 0xa2 */
+ 0x0903,/* 0xa3 */
+ 0x0905,/* 0xa4 */
+ 0x0906,/* 0xa5 */
+ 0x0907,/* 0xa6 */
+ 0x0908,/* 0xa7 */
+ 0x0909,/* 0xa8 */
+ 0x090a,/* 0xa9 */
+ 0x090b,/* 0xaa */
+ 0x090e,/* 0xab */
+ 0x090f,/* 0xac */
+ 0x0910,/* 0xad */
+ 0x090d,/* 0xae */
+ 0x0912,/* 0xaf */
+ 0x0913,/* 0xb0 */
+ 0x0914,/* 0xb1 */
+ 0x0911,/* 0xb2 */
+ 0x0915,/* 0xb3 */
+ 0x0916,/* 0xb4 */
+ 0x0917,/* 0xb5 */
+ 0x0918,/* 0xb6 */
+ 0x0919,/* 0xb7 */
+ 0x091a,/* 0xb8 */
+ 0x091b,/* 0xb9 */
+ 0x091c,/* 0xba */
+ 0x091d,/* 0xbb */
+ 0x091e,/* 0xbc */
+ 0x091f,/* 0xbd */
+ 0x0920,/* 0xbe */
+ 0x0921,/* 0xbf */
+ 0x0922,/* 0xc0 */
+ 0x0923,/* 0xc1 */
+ 0x0924,/* 0xc2 */
+ 0x0925,/* 0xc3 */
+ 0x0926,/* 0xc4 */
+ 0x0927,/* 0xc5 */
+ 0x0928,/* 0xc6 */
+ 0x0929,/* 0xc7 */
+ 0x092a,/* 0xc8 */
+ 0x092b,/* 0xc9 */
+ 0x092c,/* 0xca */
+ 0x092d,/* 0xcb */
+ 0x092e,/* 0xcc */
+ 0x092f,/* 0xcd */
+ 0x095f,/* 0xce */
+ 0x0930,/* 0xcf */
+ 0x0931,/* 0xd0 */
+ 0x0932,/* 0xd1 */
+ 0x0933,/* 0xd2 */
+ 0x0934,/* 0xd3 */
+ 0x0935,/* 0xd4 */
+ 0x0936,/* 0xd5 */
+ 0x0937,/* 0xd6 */
+ 0x0938,/* 0xd7 */
+ 0x0939,/* 0xd8 */
+ 0x200D,/* 0xd9 */
+ 0x093e,/* 0xda */
+ 0x093f,/* 0xdb */
+ 0x0940,/* 0xdc */
+ 0x0941,/* 0xdd */
+ 0x0942,/* 0xde */
+ 0x0943,/* 0xdf */
+ 0x0946,/* 0xe0 */
+ 0x0947,/* 0xe1 */
+ 0x0948,/* 0xe2 */
+ 0x0945,/* 0xe3 */
+ 0x094a,/* 0xe4 */
+ 0x094b,/* 0xe5 */
+ 0x094c,/* 0xe6 */
+ 0x0949,/* 0xe7 */
+ 0x094d,/* 0xe8 */
+ 0x093c,/* 0xe9 */
+ 0x0964,/* 0xea */
+ 0xFFFF,/* 0xeb */
+ 0xFFFF,/* 0xec */
+ 0xFFFF,/* 0xed */
+ 0xFFFF,/* 0xee */
+ 0xFFFF,/* 0xef */
+ 0xFFFF,/* 0xf0 */
+ 0x0966,/* 0xf1 */
+ 0x0967,/* 0xf2 */
+ 0x0968,/* 0xf3 */
+ 0x0969,/* 0xf4 */
+ 0x096a,/* 0xf5 */
+ 0x096b,/* 0xf6 */
+ 0x096c,/* 0xf7 */
+ 0x096d,/* 0xf8 */
+ 0x096e,/* 0xf9 */
+ 0x096f,/* 0xfa */
+ 0xFFFF,/* 0xfb */
+ 0xFFFF,/* 0xfc */
+ 0xFFFF,/* 0xfd */
+ 0xFFFF,/* 0xfe */
+ 0xFFFF /* 0xff */
+};
+
+static const uint16_t vowelSignESpecialCases[][2]={
+ { 2 /*length of array*/ , 0 },
+ { 0xA4 , 0x0904 },
+};
+
+static const uint16_t nuktaSpecialCases[][2]={
+ { 16 /*length of array*/ , 0 },
+ { 0xA6 , 0x090c },
+ { 0xEA , 0x093D },
+ { 0xDF , 0x0944 },
+ { 0xA1 , 0x0950 },
+ { 0xb3 , 0x0958 },
+ { 0xb4 , 0x0959 },
+ { 0xb5 , 0x095a },
+ { 0xba , 0x095b },
+ { 0xbf , 0x095c },
+ { 0xC0 , 0x095d },
+ { 0xc9 , 0x095e },
+ { 0xAA , 0x0960 },
+ { 0xA7 , 0x0961 },
+ { 0xDB , 0x0962 },
+ { 0xDC , 0x0963 },
+};
+
+
+#define WRITE_TO_TARGET_FROM_U(args,offsets,source,target,targetLimit,targetByteUnit,err) UPRV_BLOCK_MACRO_BEGIN { \
+ int32_t offset = (int32_t)(source - args->source-1); \
+ /* write the targetUniChar to target */ \
+ if(target < targetLimit){ \
+ if(targetByteUnit <= 0xFF){ \
+ *(target)++ = (uint8_t)(targetByteUnit); \
+ if(offsets){ \
+ *(offsets++) = offset; \
+ } \
+ }else{ \
+ if (targetByteUnit > 0xFFFF) { \
+ *(target)++ = (uint8_t)(targetByteUnit>>16); \
+ if (offsets) { \
+ --offset; \
+ *(offsets++) = offset; \
+ } \
+ } \
+ if (!(target < targetLimit)) { \
+ args->converter->charErrorBuffer[args->converter->charErrorBufferLength++] = \
+ (uint8_t)(targetByteUnit >> 8); \
+ args->converter->charErrorBuffer[args->converter->charErrorBufferLength++] = \
+ (uint8_t)targetByteUnit; \
+ *err = U_BUFFER_OVERFLOW_ERROR; \
+ } else { \
+ *(target)++ = (uint8_t)(targetByteUnit>>8); \
+ if(offsets){ \
+ *(offsets++) = offset; \
+ } \
+ if(target < targetLimit){ \
+ *(target)++ = (uint8_t) targetByteUnit; \
+ if(offsets){ \
+ *(offsets++) = offset ; \
+ } \
+ }else{ \
+ args->converter->charErrorBuffer[args->converter->charErrorBufferLength++] =\
+ (uint8_t) (targetByteUnit); \
+ *err = U_BUFFER_OVERFLOW_ERROR; \
+ } \
+ } \
+ } \
+ }else{ \
+ if (targetByteUnit & 0xFF0000) { \
+ args->converter->charErrorBuffer[args->converter->charErrorBufferLength++] = \
+ (uint8_t) (targetByteUnit >>16); \
+ } \
+ if(targetByteUnit & 0xFF00){ \
+ args->converter->charErrorBuffer[args->converter->charErrorBufferLength++] = \
+ (uint8_t) (targetByteUnit >>8); \
+ } \
+ args->converter->charErrorBuffer[args->converter->charErrorBufferLength++] = \
+ (uint8_t) (targetByteUnit); \
+ *err = U_BUFFER_OVERFLOW_ERROR; \
+ } \
+} UPRV_BLOCK_MACRO_END
+
+/* Rules:
+ * Explicit Halant :
+ * <HALANT> + <ZWNJ>
+ * Soft Halant :
+ * <HALANT> + <ZWJ>
+ */
+static void U_CALLCONV
+UConverter_fromUnicode_ISCII_OFFSETS_LOGIC(
+ UConverterFromUnicodeArgs * args, UErrorCode * err) {
+ const char16_t *source = args->source;
+ const char16_t *sourceLimit = args->sourceLimit;
+ unsigned char *target = (unsigned char *) args->target;
+ unsigned char *targetLimit = (unsigned char *) args->targetLimit;
+ int32_t* offsets = args->offsets;
+ uint32_t targetByteUnit = 0x0000;
+ UChar32 sourceChar = 0x0000;
+ UChar32 tempContextFromUnicode = 0x0000; /* For special handling of the Gurmukhi script. */
+ UConverterDataISCII *converterData;
+ uint16_t newDelta=0;
+ uint16_t range = 0;
+ UBool deltaChanged = false;
+
+ if ((args->converter == nullptr) || (args->targetLimit < args->target) || (args->sourceLimit < args->source)) {
+ *err = U_ILLEGAL_ARGUMENT_ERROR;
+ return;
+ }
+ /* initialize data */
+ converterData=(UConverterDataISCII*)args->converter->extraInfo;
+ newDelta=converterData->currentDeltaFromUnicode;
+ range = (uint16_t)(newDelta/DELTA);
+
+ if ((sourceChar = args->converter->fromUChar32)!=0) {
+ goto getTrail;
+ }
+
+ /*writing the char to the output stream */
+ while (source < sourceLimit) {
+ /* Write the language code following LF only if LF is not the last character. */
+ if (args->converter->fromUnicodeStatus == LF) {
+ targetByteUnit = ATR<<8;
+ targetByteUnit += (uint8_t) lookupInitialData[range].isciiLang;
+ args->converter->fromUnicodeStatus = 0x0000;
+ /* now append ATR and language code */
+ WRITE_TO_TARGET_FROM_U(args,offsets,source,target,targetLimit,targetByteUnit,err);
+ if (U_FAILURE(*err)) {
+ break;
+ }
+ }
+
+ sourceChar = *source++;
+ tempContextFromUnicode = converterData->contextCharFromUnicode;
+
+ targetByteUnit = missingCharMarker;
+
+ /*check if input is in ASCII and C0 control codes range*/
+ if (sourceChar <= ASCII_END) {
+ args->converter->fromUnicodeStatus = sourceChar;
+ WRITE_TO_TARGET_FROM_U(args,offsets,source,target,targetLimit,sourceChar,err);
+ if (U_FAILURE(*err)) {
+ break;
+ }
+ continue;
+ }
+ switch (sourceChar) {
+ case ZWNJ:
+ /* contextChar has HALANT */
+ if (converterData->contextCharFromUnicode) {
+ converterData->contextCharFromUnicode = 0x00;
+ targetByteUnit = ISCII_HALANT;
+ } else {
+ /* consume ZWNJ and continue */
+ converterData->contextCharFromUnicode = 0x00;
+ continue;
+ }
+ break;
+ case ZWJ:
+ /* contextChar has HALANT */
+ if (converterData->contextCharFromUnicode) {
+ targetByteUnit = ISCII_NUKTA;
+ } else {
+ targetByteUnit =ISCII_INV;
+ }
+ converterData->contextCharFromUnicode = 0x00;
+ break;
+ default:
+ /* is the sourceChar in the INDIC_RANGE? */
+ if ((uint16_t)(INDIC_BLOCK_END-sourceChar) <= INDIC_RANGE) {
+ /* Danda and Double Danda are valid in Northern scripts.. since Unicode
+ * does not include these codepoints in all Northern scrips we need to
+ * filter them out
+ */
+ if (sourceChar!= DANDA && sourceChar != DOUBLE_DANDA) {
+ /* find out to which block the souceChar belongs*/
+ range =(uint16_t)((sourceChar-INDIC_BLOCK_BEGIN)/DELTA);
+ newDelta =(uint16_t)(range*DELTA);
+
+ /* Now are we in the same block as the previous? */
+ if (newDelta!= converterData->currentDeltaFromUnicode || converterData->isFirstBuffer) {
+ converterData->currentDeltaFromUnicode = newDelta;
+ converterData->currentMaskFromUnicode = lookupInitialData[range].maskEnum;
+ deltaChanged =true;
+ converterData->isFirstBuffer=false;
+ }
+
+ if (converterData->currentDeltaFromUnicode == PNJ_DELTA) {
+ if (sourceChar == PNJ_TIPPI) {
+ /* Make sure Tippi is converted to Bindi. */
+ sourceChar = PNJ_BINDI;
+ } else if (sourceChar == PNJ_ADHAK) {
+ /* This is for consonant cluster handling. */
+ converterData->contextCharFromUnicode = PNJ_ADHAK;
+ }
+
+ }
+ /* Normalize all Indic codepoints to Devanagari and map them to ISCII */
+ /* now subtract the new delta from sourceChar*/
+ sourceChar -= converterData->currentDeltaFromUnicode;
+ }
+
+ /* get the target byte unit */
+ targetByteUnit=fromUnicodeTable[(uint8_t)sourceChar];
+
+ /* is the code point valid in current script? */
+ if ((validityTable[(uint8_t)sourceChar] & converterData->currentMaskFromUnicode)==0) {
+ /* Vocallic RR is assigned in ISCII Telugu and Unicode */
+ if (converterData->currentDeltaFromUnicode!=(TELUGU_DELTA) || sourceChar!=VOCALLIC_RR) {
+ targetByteUnit=missingCharMarker;
+ }
+ }
+
+ if (deltaChanged) {
+ /* we are in a script block which is different than
+ * previous sourceChar's script block write ATR and language codes
+ */
+ uint32_t temp=0;
+ temp =(uint16_t)(ATR<<8);
+ temp += (uint16_t)((uint8_t) lookupInitialData[range].isciiLang);
+ /* reset */
+ deltaChanged=false;
+ /* now append ATR and language code */
+ WRITE_TO_TARGET_FROM_U(args,offsets,source,target,targetLimit,temp,err);
+ if (U_FAILURE(*err)) {
+ break;
+ }
+ }
+
+ if (converterData->currentDeltaFromUnicode == PNJ_DELTA && (sourceChar + PNJ_DELTA) == PNJ_ADHAK) {
+ continue;
+ }
+ }
+ /* reset context char */
+ converterData->contextCharFromUnicode = 0x00;
+ break;
+ }
+ if (converterData->currentDeltaFromUnicode == PNJ_DELTA && tempContextFromUnicode == PNJ_ADHAK && isPNJConsonant((sourceChar + PNJ_DELTA))) {
+ /* If the previous codepoint is Adhak and the current codepoint is a consonant, the targetByteUnit should be C + Halant + C. */
+ /* reset context char */
+ converterData->contextCharFromUnicode = 0x0000;
+ targetByteUnit = targetByteUnit << 16 | ISCII_HALANT << 8 | targetByteUnit;
+ /* write targetByteUnit to target */
+ WRITE_TO_TARGET_FROM_U(args, offsets, source, target, targetLimit, targetByteUnit,err);
+ if (U_FAILURE(*err)) {
+ break;
+ }
+ } else if (targetByteUnit != missingCharMarker) {
+ if (targetByteUnit==ISCII_HALANT) {
+ converterData->contextCharFromUnicode = (char16_t)targetByteUnit;
+ }
+ /* write targetByteUnit to target*/
+ WRITE_TO_TARGET_FROM_U(args,offsets,source,target,targetLimit,targetByteUnit,err);
+ if (U_FAILURE(*err)) {
+ break;
+ }
+ } else {
+ /* oops.. the code point is unassigned */
+ /*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 */
+ char16_t trail= (*source);
+ if (U16_IS_TRAIL(trail)) {
+ source++;
+ sourceChar=U16_GET_SUPPLEMENTARY(sourceChar, trail);
+ *err =U_INVALID_CHAR_FOUND;
+ /* convert this surrogate code point */
+ /* 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=sourceChar;
+ break;
+ }
+ }/* end while(mySourceIndex<mySourceLength) */
+
+ /*save the state and return */
+ args->source = source;
+ args->target = (char*)target;
+}
+
+static const uint16_t lookupTable[][2]={
+ { ZERO, ZERO }, /*DEFAULT*/
+ { ZERO, ZERO }, /*ROMAN*/
+ { DEVANAGARI, DEV_MASK },
+ { BENGALI, BNG_MASK },
+ { TAMIL, TML_MASK },
+ { TELUGU, KND_MASK },
+ { BENGALI, BNG_MASK },
+ { ORIYA, ORI_MASK },
+ { KANNADA, KND_MASK },
+ { MALAYALAM, MLM_MASK },
+ { GUJARATI, GJR_MASK },
+ { GURMUKHI, PNJ_MASK }
+};
+
+#define WRITE_TO_TARGET_TO_U(args,source,target,offsets,offset,targetUniChar,delta, err) UPRV_BLOCK_MACRO_BEGIN { \
+ /* add offset to current Indic Block */ \
+ if(targetUniChar>ASCII_END && \
+ targetUniChar != ZWJ && \
+ targetUniChar != ZWNJ && \
+ targetUniChar != DANDA && \
+ targetUniChar != DOUBLE_DANDA){ \
+ \
+ targetUniChar+=(uint16_t)(delta); \
+ } \
+ /* now write the targetUniChar */ \
+ if(target<args->targetLimit){ \
+ *(target)++ = (char16_t)targetUniChar; \
+ if(offsets){ \
+ *(offsets)++ = (int32_t)(offset); \
+ } \
+ }else{ \
+ args->converter->UCharErrorBuffer[args->converter->UCharErrorBufferLength++] = \
+ (char16_t)targetUniChar; \
+ *err = U_BUFFER_OVERFLOW_ERROR; \
+ } \
+} UPRV_BLOCK_MACRO_END
+
+#define GET_MAPPING(sourceChar,targetUniChar,data) UPRV_BLOCK_MACRO_BEGIN { \
+ targetUniChar = toUnicodeTable[(sourceChar)] ; \
+ /* is the code point valid in current script? */ \
+ if(sourceChar> ASCII_END && \
+ (validityTable[(targetUniChar & 0x7F)] & data->currentMaskToUnicode)==0){ \
+ /* Vocallic RR is assigned in ISCII Telugu and Unicode */ \
+ if(data->currentDeltaToUnicode!=(TELUGU_DELTA) || \
+ targetUniChar!=VOCALLIC_RR){ \
+ targetUniChar=missingCharMarker; \
+ } \
+ } \
+} UPRV_BLOCK_MACRO_END
+
+/***********
+ * Rules for ISCII to Unicode converter
+ * ISCII is stateful encoding. To convert ISCII bytes to Unicode,
+ * which has both precomposed and decomposed forms characters
+ * pre-context and post-context need to be considered.
+ *
+ * Post context
+ * i) ATR : Attribute code is used to declare the font and script switching.
+ * Currently we only switch scripts and font codes consumed without generating an error
+ * ii) EXT : Extension code is used to declare switching to Sanskrit and for obscure,
+ * obsolete characters
+ * Pre context
+ * i) Halant: if preceded by a halant then it is a explicit halant
+ * ii) Nukta :
+ * a) if preceded by a halant then it is a soft halant
+ * b) if preceded by specific consonants and the ligatures have pre-composed
+ * characters in Unicode then convert to pre-composed characters
+ * iii) Danda: If Danda is preceded by a Danda then convert to Double Danda
+ *
+ */
+
+static void U_CALLCONV
+UConverter_toUnicode_ISCII_OFFSETS_LOGIC(UConverterToUnicodeArgs *args, UErrorCode* err) {
+ const char *source = ( char *) args->source;
+ char16_t *target = args->target;
+ const char *sourceLimit = args->sourceLimit;
+ const char16_t* targetLimit = args->targetLimit;
+ uint32_t targetUniChar = 0x0000;
+ uint8_t sourceChar = 0x0000;
+ UConverterDataISCII* data;
+ UChar32* toUnicodeStatus=nullptr;
+ UChar32 tempTargetUniChar = 0x0000;
+ char16_t* contextCharToUnicode= nullptr;
+ UBool found;
+ int i;
+ int offset = 0;
+
+ if ((args->converter == nullptr) || (target < args->target) || (source < args->source)) {
+ *err = U_ILLEGAL_ARGUMENT_ERROR;
+ return;
+ }
+
+ data = (UConverterDataISCII*)(args->converter->extraInfo);
+ contextCharToUnicode = &data->contextCharToUnicode; /* contains previous ISCII codepoint visited */
+ toUnicodeStatus = (UChar32*)&args->converter->toUnicodeStatus;/* contains the mapping to Unicode of the above codepoint*/
+
+ while (U_SUCCESS(*err) && source<sourceLimit) {
+
+ targetUniChar = missingCharMarker;
+
+ if (target < targetLimit) {
+ sourceChar = (unsigned char)*(source)++;
+
+ /* look at the post-context perform special processing */
+ if (*contextCharToUnicode==ATR) {
+
+ /* If we have ATR in *contextCharToUnicode then we need to change our
+ * state to the Indic Script specified by sourceChar
+ */
+
+ /* check if the sourceChar is supported script range*/
+ if ((uint8_t)(PNJ-sourceChar)<=PNJ-DEV) {
+ data->currentDeltaToUnicode = (uint16_t)(lookupTable[sourceChar & 0x0F][0] * DELTA);
+ data->currentMaskToUnicode = (MaskEnum)lookupTable[sourceChar & 0x0F][1];
+ } else if (sourceChar==DEF) {
+ /* switch back to default */
+ data->currentDeltaToUnicode = data->defDeltaToUnicode;
+ data->currentMaskToUnicode = data->defMaskToUnicode;
+ } else {
+ if ((sourceChar >= 0x21 && sourceChar <= 0x3F)) {
+ /* these are display codes consume and continue */
+ } else {
+ *err =U_ILLEGAL_CHAR_FOUND;
+ /* reset */
+ *contextCharToUnicode=NO_CHAR_MARKER;
+ goto CALLBACK;
+ }
+ }
+
+ /* reset */
+ *contextCharToUnicode=NO_CHAR_MARKER;
+
+ continue;
+
+ } else if (*contextCharToUnicode==EXT) {
+ /* check if sourceChar is in 0xA1-0xEE range */
+ if ((uint8_t) (EXT_RANGE_END - sourceChar) <= (EXT_RANGE_END - EXT_RANGE_BEGIN)) {
+ /* We currently support only Anudatta and Devanagari abbreviation sign */
+ if (sourceChar==0xBF || sourceChar == 0xB8) {
+ targetUniChar = (sourceChar==0xBF) ? DEV_ABBR_SIGN : DEV_ANUDATTA;
+
+ /* find out if the mapping is valid in this state */
+ if (validityTable[(uint8_t)targetUniChar] & data->currentMaskToUnicode) {
+ *contextCharToUnicode= NO_CHAR_MARKER;
+
+ /* Write the previous toUnicodeStatus, this was delayed to handle consonant clustering for Gurmukhi script. */
+ if (data->prevToUnicodeStatus) {
+ WRITE_TO_TARGET_TO_U(args,source,target,args->offsets,(source-args->source -1),data->prevToUnicodeStatus,0,err);
+ data->prevToUnicodeStatus = 0x0000;
+ }
+ /* write to target */
+ WRITE_TO_TARGET_TO_U(args,source,target,args->offsets,(source-args->source -2),targetUniChar,data->currentDeltaToUnicode,err);
+
+ continue;
+ }
+ }
+ /* byte unit is unassigned */
+ targetUniChar = missingCharMarker;
+ *err= U_INVALID_CHAR_FOUND;
+ } else {
+ /* only 0xA1 - 0xEE are legal after EXT char */
+ *contextCharToUnicode= NO_CHAR_MARKER;
+ *err = U_ILLEGAL_CHAR_FOUND;
+ }
+ goto CALLBACK;
+ } else if (*contextCharToUnicode==ISCII_INV) {
+ if (sourceChar==ISCII_HALANT) {
+ targetUniChar = 0x0020; /* replace with space according to Indic FAQ */
+ } else {
+ targetUniChar = ZWJ;
+ }
+
+ /* Write the previous toUnicodeStatus, this was delayed to handle consonant clustering for Gurmukhi script. */
+ if (data->prevToUnicodeStatus) {
+ WRITE_TO_TARGET_TO_U(args,source,target,args->offsets,(source-args->source -1),data->prevToUnicodeStatus,0,err);
+ data->prevToUnicodeStatus = 0x0000;
+ }
+ /* write to target */
+ WRITE_TO_TARGET_TO_U(args,source,target,args->offsets,(source-args->source -2),targetUniChar,data->currentDeltaToUnicode,err);
+ /* reset */
+ *contextCharToUnicode=NO_CHAR_MARKER;
+ }
+
+ /* look at the pre-context and perform special processing */
+ switch (sourceChar) {
+ case ISCII_INV:
+ case EXT:
+ case ATR:
+ *contextCharToUnicode = (char16_t)sourceChar;
+
+ if (*toUnicodeStatus != missingCharMarker) {
+ /* Write the previous toUnicodeStatus, this was delayed to handle consonant clustering for Gurmukhi script. */
+ if (data->prevToUnicodeStatus) {
+ WRITE_TO_TARGET_TO_U(args,source,target,args->offsets,(source-args->source -1),data->prevToUnicodeStatus,0,err);
+ data->prevToUnicodeStatus = 0x0000;
+ }
+ WRITE_TO_TARGET_TO_U(args,source,target,args->offsets,(source-args->source -2),*toUnicodeStatus,data->currentDeltaToUnicode,err);
+ *toUnicodeStatus = missingCharMarker;
+ }
+ continue;
+ case ISCII_DANDA:
+ /* handle double danda*/
+ if (*contextCharToUnicode== ISCII_DANDA) {
+ targetUniChar = DOUBLE_DANDA;
+ /* clear the context */
+ *contextCharToUnicode = NO_CHAR_MARKER;
+ *toUnicodeStatus = missingCharMarker;
+ } else {
+ GET_MAPPING(sourceChar,targetUniChar,data);
+ *contextCharToUnicode = sourceChar;
+ }
+ break;
+ case ISCII_HALANT:
+ /* handle explicit halant */
+ if (*contextCharToUnicode == ISCII_HALANT) {
+ targetUniChar = ZWNJ;
+ /* clear the context */
+ *contextCharToUnicode = NO_CHAR_MARKER;
+ } else {
+ GET_MAPPING(sourceChar,targetUniChar,data);
+ *contextCharToUnicode = sourceChar;
+ }
+ break;
+ case 0x0A:
+ case 0x0D:
+ data->resetToDefaultToUnicode = true;
+ GET_MAPPING(sourceChar,targetUniChar,data)
+ ;
+ *contextCharToUnicode = sourceChar;
+ break;
+
+ case ISCII_VOWEL_SIGN_E:
+ i=1;
+ found=false;
+ for (; i<vowelSignESpecialCases[0][0]; i++) {
+ U_ASSERT(i<UPRV_LENGTHOF(vowelSignESpecialCases));
+ if (vowelSignESpecialCases[i][0]==(uint8_t)*contextCharToUnicode) {
+ targetUniChar=vowelSignESpecialCases[i][1];
+ found=true;
+ break;
+ }
+ }
+ if (found) {
+ /* find out if the mapping is valid in this state */
+ if (validityTable[(uint8_t)targetUniChar] & data->currentMaskToUnicode) {
+ /*targetUniChar += data->currentDeltaToUnicode ;*/
+ *contextCharToUnicode= NO_CHAR_MARKER;
+ *toUnicodeStatus = missingCharMarker;
+ break;
+ }
+ }
+ GET_MAPPING(sourceChar,targetUniChar,data);
+ *contextCharToUnicode = sourceChar;
+ break;
+
+ case ISCII_NUKTA:
+ /* handle soft halant */
+ if (*contextCharToUnicode == ISCII_HALANT) {
+ targetUniChar = ZWJ;
+ /* clear the context */
+ *contextCharToUnicode = NO_CHAR_MARKER;
+ break;
+ } else if (data->currentDeltaToUnicode == PNJ_DELTA && data->contextCharToUnicode == 0xc0) {
+ /* Write the previous toUnicodeStatus, this was delayed to handle consonant clustering for Gurmukhi script. */
+ if (data->prevToUnicodeStatus) {
+ WRITE_TO_TARGET_TO_U(args,source,target,args->offsets,(source-args->source -1),data->prevToUnicodeStatus,0,err);
+ data->prevToUnicodeStatus = 0x0000;
+ }
+ /* We got here because ISCII_NUKTA was preceded by 0xc0 and we are converting Gurmukhi.
+ * In that case we must convert (0xc0 0xe9) to (\u0a5c\u0a4d\u0a39).
+ */
+ targetUniChar = PNJ_RRA;
+ WRITE_TO_TARGET_TO_U(args, source, target, args->offsets, (source-args->source)-2, targetUniChar, 0, err);
+ if (U_SUCCESS(*err)) {
+ targetUniChar = PNJ_SIGN_VIRAMA;
+ WRITE_TO_TARGET_TO_U(args, source, target, args->offsets, (source-args->source)-2, targetUniChar, 0, err);
+ if (U_SUCCESS(*err)) {
+ targetUniChar = PNJ_HA;
+ WRITE_TO_TARGET_TO_U(args, source, target, args->offsets, (source-args->source)-2, targetUniChar, 0, err);
+ } else {
+ args->converter->UCharErrorBuffer[args->converter->UCharErrorBufferLength++]= PNJ_HA;
+ }
+ } else {
+ args->converter->UCharErrorBuffer[args->converter->UCharErrorBufferLength++]= PNJ_SIGN_VIRAMA;
+ args->converter->UCharErrorBuffer[args->converter->UCharErrorBufferLength++]= PNJ_HA;
+ }
+ *toUnicodeStatus = missingCharMarker;
+ data->contextCharToUnicode = NO_CHAR_MARKER;
+ continue;
+ } else {
+ /* try to handle <CHAR> + ISCII_NUKTA special mappings */
+ i=1;
+ found =false;
+ for (; i<nuktaSpecialCases[0][0]; i++) {
+ if (nuktaSpecialCases[i][0]==(uint8_t)
+ *contextCharToUnicode) {
+ targetUniChar=nuktaSpecialCases[i][1];
+ found =true;
+ break;
+ }
+ }
+ if (found) {
+ /* find out if the mapping is valid in this state */
+ if (validityTable[(uint8_t)targetUniChar] & data->currentMaskToUnicode) {
+ /*targetUniChar += data->currentDeltaToUnicode ;*/
+ *contextCharToUnicode= NO_CHAR_MARKER;
+ *toUnicodeStatus = missingCharMarker;
+ if (data->currentDeltaToUnicode == PNJ_DELTA) {
+ /* Write the previous toUnicodeStatus, this was delayed to handle consonant clustering for Gurmukhi script. */
+ if (data->prevToUnicodeStatus) {
+ WRITE_TO_TARGET_TO_U(args,source,target,args->offsets,(source-args->source -1),data->prevToUnicodeStatus,0,err);
+ data->prevToUnicodeStatus = 0x0000;
+ }
+ WRITE_TO_TARGET_TO_U(args,source,target,args->offsets,(source-args->source -2),targetUniChar,data->currentDeltaToUnicode,err);
+ continue;
+ }
+ break;
+ }
+ /* else fall through to default */
+ }
+ /* else fall through to default */
+ U_FALLTHROUGH;
+ }
+ default:GET_MAPPING(sourceChar,targetUniChar,data)
+ ;
+ *contextCharToUnicode = sourceChar;
+ break;
+ }
+
+ if (*toUnicodeStatus != missingCharMarker) {
+ /* Check to make sure that consonant clusters are handled correct for Gurmukhi script. */
+ if (data->currentDeltaToUnicode == PNJ_DELTA && data->prevToUnicodeStatus != 0 && isPNJConsonant(data->prevToUnicodeStatus) &&
+ (*toUnicodeStatus + PNJ_DELTA) == PNJ_SIGN_VIRAMA && ((UChar32)(targetUniChar + PNJ_DELTA) == data->prevToUnicodeStatus)) {
+ /* Consonant clusters C + HALANT + C should be encoded as ADHAK + C */
+ offset = (int)(source-args->source - 3);
+ tempTargetUniChar = PNJ_ADHAK; /* This is necessary to avoid some compiler warnings. */
+ WRITE_TO_TARGET_TO_U(args,source,target,args->offsets,offset,tempTargetUniChar,0,err);
+ WRITE_TO_TARGET_TO_U(args,source,target,args->offsets,offset,data->prevToUnicodeStatus,0,err);
+ data->prevToUnicodeStatus = 0x0000; /* reset the previous unicode code point */
+ *toUnicodeStatus = missingCharMarker;
+ continue;
+ } else {
+ /* Write the previous toUnicodeStatus, this was delayed to handle consonant clustering for Gurmukhi script. */
+ if (data->prevToUnicodeStatus) {
+ WRITE_TO_TARGET_TO_U(args,source,target,args->offsets,(source-args->source -1),data->prevToUnicodeStatus,0,err);
+ data->prevToUnicodeStatus = 0x0000;
+ }
+ /* Check to make sure that Bindi and Tippi are handled correctly for Gurmukhi script.
+ * If 0xA2 is preceded by a codepoint in the PNJ_BINDI_TIPPI_SET then the target codepoint should be Tippi instead of Bindi.
+ */
+ if (data->currentDeltaToUnicode == PNJ_DELTA && (targetUniChar + PNJ_DELTA) == PNJ_BINDI && isPNJBindiTippi((*toUnicodeStatus + PNJ_DELTA))) {
+ targetUniChar = PNJ_TIPPI - PNJ_DELTA;
+ WRITE_TO_TARGET_TO_U(args,source,target,args->offsets,(source-args->source -2),*toUnicodeStatus,PNJ_DELTA,err);
+ } else if (data->currentDeltaToUnicode == PNJ_DELTA && (targetUniChar + PNJ_DELTA) == PNJ_SIGN_VIRAMA && isPNJConsonant((*toUnicodeStatus + PNJ_DELTA))) {
+ /* Store the current toUnicodeStatus code point for later handling of consonant cluster in Gurmukhi. */
+ data->prevToUnicodeStatus = *toUnicodeStatus + PNJ_DELTA;
+ } else {
+ /* write the previously mapped codepoint */
+ WRITE_TO_TARGET_TO_U(args,source,target,args->offsets,(source-args->source -2),*toUnicodeStatus,data->currentDeltaToUnicode,err);
+ }
+ }
+ *toUnicodeStatus = missingCharMarker;
+ }
+
+ if (targetUniChar != missingCharMarker) {
+ /* now save the targetUniChar for delayed write */
+ *toUnicodeStatus = (char16_t) targetUniChar;
+ if (data->resetToDefaultToUnicode) {
+ data->currentDeltaToUnicode = data->defDeltaToUnicode;
+ data->currentMaskToUnicode = data->defMaskToUnicode;
+ data->resetToDefaultToUnicode=false;
+ }
+ } else {
+
+ /* we reach here only if targetUniChar == missingCharMarker
+ * so assign codes to reason and err
+ */
+ *err = U_INVALID_CHAR_FOUND;
+CALLBACK:
+ args->converter->toUBytes[0] = (uint8_t) sourceChar;
+ args->converter->toULength = 1;
+ break;
+ }
+
+ } else {
+ *err =U_BUFFER_OVERFLOW_ERROR;
+ break;
+ }
+ }
+
+ if (U_SUCCESS(*err) && args->flush && source == sourceLimit) {
+ /* end of the input stream */
+ UConverter *cnv = args->converter;
+
+ if (*contextCharToUnicode==ATR || *contextCharToUnicode==EXT || *contextCharToUnicode==ISCII_INV) {
+ /* set toUBytes[] */
+ cnv->toUBytes[0] = (uint8_t)*contextCharToUnicode;
+ cnv->toULength = 1;
+
+ /* avoid looping on truncated sequences */
+ *contextCharToUnicode = NO_CHAR_MARKER;
+ } else {
+ cnv->toULength = 0;
+ }
+
+ if (*toUnicodeStatus != missingCharMarker) {
+ /* output a remaining target character */
+ WRITE_TO_TARGET_TO_U(args,source,target,args->offsets,(source - args->source -1),*toUnicodeStatus,data->currentDeltaToUnicode,err);
+ *toUnicodeStatus = missingCharMarker;
+ }
+ }
+
+ args->target = target;
+ args->source = source;
+}
+
+/* structure for SafeClone calculations */
+struct cloneISCIIStruct {
+ UConverter cnv;
+ UConverterDataISCII mydata;
+};
+
+static UConverter * U_CALLCONV
+_ISCII_SafeClone(const UConverter *cnv,
+ void *stackBuffer,
+ int32_t *pBufferSize,
+ UErrorCode *status)
+{
+ struct cloneISCIIStruct * localClone;
+ int32_t bufferSizeNeeded = sizeof(struct cloneISCIIStruct);
+
+ if (U_FAILURE(*status)) {
+ return 0;
+ }
+
+ if (*pBufferSize == 0) { /* 'preflighting' request - set needed size into *pBufferSize */
+ *pBufferSize = bufferSizeNeeded;
+ return 0;
+ }
+
+ localClone = (struct cloneISCIIStruct *)stackBuffer;
+ /* ucnv.c/ucnv_safeClone() copied the main UConverter already */
+
+ uprv_memcpy(&localClone->mydata, cnv->extraInfo, sizeof(UConverterDataISCII));
+ localClone->cnv.extraInfo = &localClone->mydata;
+ localClone->cnv.isExtraLocal = true;
+
+ return &localClone->cnv;
+}
+
+static void U_CALLCONV
+_ISCIIGetUnicodeSet(const UConverter *cnv,
+ const USetAdder *sa,
+ UConverterUnicodeSet which,
+ UErrorCode *pErrorCode)
+{
+ (void)cnv;
+ (void)which;
+ (void)pErrorCode;
+ int32_t idx, script;
+ uint8_t mask;
+
+ /* Since all ISCII versions allow switching to other ISCII
+ scripts, we add all roundtrippable characters to this set. */
+ sa->addRange(sa->set, 0, ASCII_END);
+ for (script = DEVANAGARI; script <= MALAYALAM; script++) {
+ mask = (uint8_t)(lookupInitialData[script].maskEnum);
+ for (idx = 0; idx < DELTA; idx++) {
+ /* added check for TELUGU character */
+ if ((validityTable[idx] & mask) || (script==TELUGU && idx==0x31)) {
+ sa->add(sa->set, idx + (script * DELTA) + INDIC_BLOCK_BEGIN);
+ }
+ }
+ }
+ sa->add(sa->set, DANDA);
+ sa->add(sa->set, DOUBLE_DANDA);
+ sa->add(sa->set, ZWNJ);
+ sa->add(sa->set, ZWJ);
+}
+U_CDECL_END
+static const UConverterImpl _ISCIIImpl={
+
+ UCNV_ISCII,
+
+ nullptr,
+ nullptr,
+
+ _ISCIIOpen,
+ _ISCIIClose,
+ _ISCIIReset,
+
+ UConverter_toUnicode_ISCII_OFFSETS_LOGIC,
+ UConverter_toUnicode_ISCII_OFFSETS_LOGIC,
+ UConverter_fromUnicode_ISCII_OFFSETS_LOGIC,
+ UConverter_fromUnicode_ISCII_OFFSETS_LOGIC,
+ nullptr,
+
+ nullptr,
+ _ISCIIgetName,
+ nullptr,
+ _ISCII_SafeClone,
+ _ISCIIGetUnicodeSet,
+ nullptr,
+ nullptr
+};
+
+static const UConverterStaticData _ISCIIStaticData={
+ sizeof(UConverterStaticData),
+ "ISCII",
+ 0,
+ UCNV_IBM,
+ UCNV_ISCII,
+ 1,
+ 4,
+ { 0x1a, 0, 0, 0 },
+ 0x1,
+ false,
+ false,
+ 0x0,
+ 0x0,
+ { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 }, /* reserved */
+
+};
+
+const UConverterSharedData _ISCIIData=
+ UCNV_IMMUTABLE_SHARED_DATA_INITIALIZER(&_ISCIIStaticData, &_ISCIIImpl);
+
+#endif /* #if !UCONFIG_NO_LEGACY_CONVERSION */
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-21 16:31:51 +0000