1632 lines
71 KiB
C
1632 lines
71 KiB
C
/*
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**********************************************************************
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* Copyright (C) 2000-2015, International Business Machines
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* Corporation and others. All Rights Reserved.
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**********************************************************************
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* file name: ucnvisci.c
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* encoding: US-ASCII
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* tab size: 8 (not used)
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* indentation:4
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*
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* created on: 2001JUN26
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* created by: Ram Viswanadha
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*
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* Date Name Description
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* 24/7/2001 Ram Added support for EXT character handling
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*/
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#include "unicode/utypes.h"
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#if !UCONFIG_NO_CONVERSION && !UCONFIG_NO_LEGACY_CONVERSION && !UCONFIG_ONLY_HTML_CONVERSION
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#include "unicode/ucnv.h"
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#include "unicode/ucnv_cb.h"
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#include "unicode/utf16.h"
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#include "cmemory.h"
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#include "ucnv_bld.h"
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#include "ucnv_cnv.h"
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#include "cstring.h"
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#include "uassert.h"
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#define UCNV_OPTIONS_VERSION_MASK 0xf
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#define NUKTA 0x093c
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#define HALANT 0x094d
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#define ZWNJ 0x200c /* Zero Width Non Joiner */
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#define ZWJ 0x200d /* Zero width Joiner */
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#define INVALID_CHAR 0xffff
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#define ATR 0xEF /* Attribute code */
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#define EXT 0xF0 /* Extension code */
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#define DANDA 0x0964
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#define DOUBLE_DANDA 0x0965
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#define ISCII_NUKTA 0xE9
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#define ISCII_HALANT 0xE8
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#define ISCII_DANDA 0xEA
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#define ISCII_INV 0xD9
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#define ISCII_VOWEL_SIGN_E 0xE0
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#define INDIC_BLOCK_BEGIN 0x0900
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#define INDIC_BLOCK_END 0x0D7F
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#define INDIC_RANGE (INDIC_BLOCK_END - INDIC_BLOCK_BEGIN)
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#define VOCALLIC_RR 0x0931
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#define LF 0x0A
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#define ASCII_END 0xA0
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#define NO_CHAR_MARKER 0xFFFE
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#define TELUGU_DELTA DELTA * TELUGU
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#define DEV_ABBR_SIGN 0x0970
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#define DEV_ANUDATTA 0x0952
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#define EXT_RANGE_BEGIN 0xA1
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#define EXT_RANGE_END 0xEE
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#define PNJ_DELTA 0x0100
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#define PNJ_BINDI 0x0A02
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#define PNJ_TIPPI 0x0A70
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#define PNJ_SIGN_VIRAMA 0x0A4D
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#define PNJ_ADHAK 0x0A71
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#define PNJ_HA 0x0A39
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#define PNJ_RRA 0x0A5C
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typedef enum {
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DEVANAGARI =0,
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BENGALI,
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GURMUKHI,
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GUJARATI,
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ORIYA,
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TAMIL,
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TELUGU,
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KANNADA,
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MALAYALAM,
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DELTA=0x80
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}UniLang;
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/**
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* Enumeration for switching code pages if <ATR>+<one of below values>
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* is encountered
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*/
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typedef enum {
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DEF = 0x40,
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RMN = 0x41,
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DEV = 0x42,
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BNG = 0x43,
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TML = 0x44,
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TLG = 0x45,
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ASM = 0x46,
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ORI = 0x47,
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KND = 0x48,
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MLM = 0x49,
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GJR = 0x4A,
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PNJ = 0x4B,
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ARB = 0x71,
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PES = 0x72,
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URD = 0x73,
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SND = 0x74,
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KSM = 0x75,
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PST = 0x76
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}ISCIILang;
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typedef enum {
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DEV_MASK =0x80,
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PNJ_MASK =0x40,
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GJR_MASK =0x20,
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ORI_MASK =0x10,
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BNG_MASK =0x08,
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KND_MASK =0x04,
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MLM_MASK =0x02,
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TML_MASK =0x01,
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ZERO =0x00
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}MaskEnum;
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#define ISCII_CNV_PREFIX "ISCII,version="
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typedef struct {
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UChar contextCharToUnicode; /* previous Unicode codepoint for contextual analysis */
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UChar contextCharFromUnicode; /* previous Unicode codepoint for contextual analysis */
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uint16_t defDeltaToUnicode; /* delta for switching to default state when DEF is encountered */
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uint16_t currentDeltaFromUnicode; /* current delta in Indic block */
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uint16_t currentDeltaToUnicode; /* current delta in Indic block */
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MaskEnum currentMaskFromUnicode; /* mask for current state in toUnicode */
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MaskEnum currentMaskToUnicode; /* mask for current state in toUnicode */
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MaskEnum defMaskToUnicode; /* mask for default state in toUnicode */
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UBool isFirstBuffer; /* boolean for fromUnicode to see if we need to announce the first script */
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UBool resetToDefaultToUnicode; /* boolean for reseting to default delta and mask when a newline is encountered*/
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char name[sizeof(ISCII_CNV_PREFIX) + 1];
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UChar32 prevToUnicodeStatus; /* Hold the previous toUnicodeStatus. This is necessary because we may need to know the last two code points. */
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} UConverterDataISCII;
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typedef struct LookupDataStruct {
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UniLang uniLang;
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MaskEnum maskEnum;
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ISCIILang isciiLang;
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} LookupDataStruct;
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static const LookupDataStruct lookupInitialData[]={
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{ DEVANAGARI, DEV_MASK, DEV },
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{ BENGALI, BNG_MASK, BNG },
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{ GURMUKHI, PNJ_MASK, PNJ },
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{ GUJARATI, GJR_MASK, GJR },
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{ ORIYA, ORI_MASK, ORI },
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{ TAMIL, TML_MASK, TML },
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{ TELUGU, KND_MASK, TLG },
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{ KANNADA, KND_MASK, KND },
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{ MALAYALAM, MLM_MASK, MLM }
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};
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/*
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* For special handling of certain Gurmukhi characters.
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* Bit 0 (value 1): PNJ consonant
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* Bit 1 (value 2): PNJ Bindi Tippi
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*/
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static const uint8_t pnjMap[80] = {
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/* 0A00..0A0F */
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0, 0, 0, 0, 0, 2, 0, 2, 0, 0, 0, 0, 0, 0, 0, 0,
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/* 0A10..0A1F */
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0, 0, 0, 0, 0, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
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/* 0A20..0A2F */
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3, 3, 3, 3, 3, 3, 3, 3, 3, 0, 3, 3, 3, 3, 3, 3,
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/* 0A30..0A3F */
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3, 0, 0, 0, 0, 3, 3, 0, 3, 3, 0, 0, 0, 0, 0, 2,
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/* 0A40..0A4F */
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0, 2, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
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};
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static UBool
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isPNJConsonant(UChar32 c) {
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if (c < 0xa00 || 0xa50 <= c) {
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return FALSE;
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} else {
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return (UBool)(pnjMap[c - 0xa00] & 1);
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}
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}
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static UBool
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isPNJBindiTippi(UChar32 c) {
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if (c < 0xa00 || 0xa50 <= c) {
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return FALSE;
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} else {
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return (UBool)(pnjMap[c - 0xa00] >> 1);
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}
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}
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static void _ISCIIOpen(UConverter *cnv, UConverterLoadArgs *pArgs, UErrorCode *errorCode) {
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if(pArgs->onlyTestIsLoadable) {
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return;
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}
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cnv->extraInfo = uprv_malloc(sizeof(UConverterDataISCII));
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if (cnv->extraInfo != NULL) {
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int32_t len=0;
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UConverterDataISCII *converterData=
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(UConverterDataISCII *) cnv->extraInfo;
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converterData->contextCharToUnicode=NO_CHAR_MARKER;
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cnv->toUnicodeStatus = missingCharMarker;
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converterData->contextCharFromUnicode=0x0000;
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converterData->resetToDefaultToUnicode=FALSE;
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/* check if the version requested is supported */
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if ((pArgs->options & UCNV_OPTIONS_VERSION_MASK) < 9) {
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/* initialize state variables */
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converterData->currentDeltaFromUnicode
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= converterData->currentDeltaToUnicode
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= converterData->defDeltaToUnicode = (uint16_t)(lookupInitialData[pArgs->options & UCNV_OPTIONS_VERSION_MASK].uniLang * DELTA);
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converterData->currentMaskFromUnicode
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= converterData->currentMaskToUnicode
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= converterData->defMaskToUnicode = lookupInitialData[pArgs->options & UCNV_OPTIONS_VERSION_MASK].maskEnum;
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converterData->isFirstBuffer=TRUE;
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(void)uprv_strcpy(converterData->name, ISCII_CNV_PREFIX);
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len = (int32_t)uprv_strlen(converterData->name);
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converterData->name[len]= (char)((pArgs->options & UCNV_OPTIONS_VERSION_MASK) + '0');
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converterData->name[len+1]=0;
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converterData->prevToUnicodeStatus = 0x0000;
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} else {
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uprv_free(cnv->extraInfo);
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cnv->extraInfo = NULL;
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*errorCode = U_ILLEGAL_ARGUMENT_ERROR;
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}
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} else {
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*errorCode =U_MEMORY_ALLOCATION_ERROR;
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}
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}
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static void _ISCIIClose(UConverter *cnv) {
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if (cnv->extraInfo!=NULL) {
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if (!cnv->isExtraLocal) {
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uprv_free(cnv->extraInfo);
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}
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cnv->extraInfo=NULL;
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}
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}
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static const char* _ISCIIgetName(const UConverter* cnv) {
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if (cnv->extraInfo) {
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UConverterDataISCII* myData= (UConverterDataISCII*)cnv->extraInfo;
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return myData->name;
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}
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return NULL;
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}
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static void _ISCIIReset(UConverter *cnv, UConverterResetChoice choice) {
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UConverterDataISCII* data =(UConverterDataISCII *) (cnv->extraInfo);
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if (choice<=UCNV_RESET_TO_UNICODE) {
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cnv->toUnicodeStatus = missingCharMarker;
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cnv->mode=0;
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data->currentDeltaToUnicode=data->defDeltaToUnicode;
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data->currentMaskToUnicode = data->defMaskToUnicode;
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data->contextCharToUnicode=NO_CHAR_MARKER;
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data->prevToUnicodeStatus = 0x0000;
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}
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if (choice!=UCNV_RESET_TO_UNICODE) {
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cnv->fromUChar32=0x0000;
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data->contextCharFromUnicode=0x00;
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data->currentMaskFromUnicode=data->defMaskToUnicode;
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data->currentDeltaFromUnicode=data->defDeltaToUnicode;
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data->isFirstBuffer=TRUE;
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data->resetToDefaultToUnicode=FALSE;
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}
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}
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/**
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* The values in validity table are indexed by the lower bits of Unicode
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* range 0x0900 - 0x09ff. The values have a structure like:
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* ---------------------------------------------------------------
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* | DEV | PNJ | GJR | ORI | BNG | TLG | MLM | TML |
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* | | | | | ASM | KND | | |
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* ---------------------------------------------------------------
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* If a code point is valid in a particular script
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* then that bit is turned on
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*
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* Unicode does not distinguish between Bengali and Assamese so we use 1 bit for
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* to represent these languages
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*
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* Telugu and Kannada have same codepoints except for Vocallic_RR which we special case
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* and combine and use 1 bit to represent these languages.
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*
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* TODO: It is probably easier to understand and maintain to change this
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* to use uint16_t and give each of the 9 Unicode/script blocks its own bit.
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*/
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static const uint8_t validityTable[128] = {
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/* This state table is tool generated please do not edit unless you know exactly what you are doing */
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/* Note: This table was edited to mirror the Windows XP implementation */
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/*ISCII:Valid:Unicode */
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/*0xa0 : 0x00: 0x900 */ ZERO + ZERO + ZERO + ZERO + ZERO + ZERO + ZERO + ZERO ,
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/*0xa1 : 0xb8: 0x901 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + ZERO + ZERO + ZERO ,
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/*0xa2 : 0xfe: 0x902 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK ,
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/*0xa3 : 0xbf: 0x903 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK ,
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/*0x00 : 0x00: 0x904 */ DEV_MASK + ZERO + ZERO + ZERO + ZERO + ZERO + ZERO + ZERO ,
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/*0xa4 : 0xff: 0x905 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK ,
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/*0xa5 : 0xff: 0x906 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK ,
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/*0xa6 : 0xff: 0x907 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK ,
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/*0xa7 : 0xff: 0x908 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK ,
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/*0xa8 : 0xff: 0x909 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK ,
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/*0xa9 : 0xff: 0x90a */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK ,
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/*0xaa : 0xfe: 0x90b */ DEV_MASK + ZERO + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + ZERO ,
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/*0x00 : 0x00: 0x90c */ DEV_MASK + ZERO + ZERO + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + ZERO ,
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/*0xae : 0x80: 0x90d */ DEV_MASK + ZERO + GJR_MASK + ZERO + ZERO + ZERO + ZERO + ZERO ,
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/*0xab : 0x87: 0x90e */ DEV_MASK + ZERO + ZERO + ZERO + ZERO + KND_MASK + MLM_MASK + TML_MASK ,
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/*0xac : 0xff: 0x90f */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK ,
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/*0xad : 0xff: 0x910 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK ,
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/*0xb2 : 0x80: 0x911 */ DEV_MASK + ZERO + GJR_MASK + ZERO + ZERO + ZERO + ZERO + ZERO ,
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/*0xaf : 0x87: 0x912 */ DEV_MASK + ZERO + ZERO + ZERO + ZERO + KND_MASK + MLM_MASK + TML_MASK ,
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/*0xb0 : 0xff: 0x913 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK ,
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/*0xb1 : 0xff: 0x914 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK ,
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/*0xb3 : 0xff: 0x915 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK ,
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/*0xb4 : 0xfe: 0x916 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + ZERO ,
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/*0xb5 : 0xfe: 0x917 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + ZERO ,
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/*0xb6 : 0xfe: 0x918 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + ZERO ,
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/*0xb7 : 0xff: 0x919 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK ,
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/*0xb8 : 0xff: 0x91a */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK ,
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/*0xb9 : 0xfe: 0x91b */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + ZERO ,
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/*0xba : 0xff: 0x91c */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK ,
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/*0xbb : 0xfe: 0x91d */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + ZERO ,
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/*0xbc : 0xff: 0x91e */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK ,
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/*0xbd : 0xff: 0x91f */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK ,
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/*0xbe : 0xfe: 0x920 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + ZERO ,
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/*0xbf : 0xfe: 0x921 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + ZERO ,
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/*0xc0 : 0xfe: 0x922 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + ZERO ,
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/*0xc1 : 0xff: 0x923 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK ,
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/*0xc2 : 0xff: 0x924 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK ,
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/*0xc3 : 0xfe: 0x925 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + ZERO ,
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/*0xc4 : 0xfe: 0x926 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + ZERO ,
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/*0xc5 : 0xfe: 0x927 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + ZERO ,
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/*0xc6 : 0xff: 0x928 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK ,
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/*0xc7 : 0x81: 0x929 */ DEV_MASK + ZERO + ZERO + ZERO + ZERO + ZERO + ZERO + TML_MASK ,
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/*0xc8 : 0xff: 0x92a */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK ,
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/*0xc9 : 0xfe: 0x92b */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + ZERO ,
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/*0xca : 0xfe: 0x92c */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + ZERO ,
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/*0xcb : 0xfe: 0x92d */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + ZERO ,
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/*0xcc : 0xfe: 0x92e */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK ,
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/*0xcd : 0xff: 0x92f */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK ,
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/*0xcf : 0xff: 0x930 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK ,
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/*0xd0 : 0x87: 0x931 */ DEV_MASK + ZERO + ZERO + ZERO + ZERO + ZERO + MLM_MASK + TML_MASK ,
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/*0xd1 : 0xff: 0x932 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK ,
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/*0xd2 : 0xb7: 0x933 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + ZERO + KND_MASK + MLM_MASK + TML_MASK ,
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/*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){ \
|
|
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; \
|
|
} \
|
|
}
|
|
|
|
/* Rules:
|
|
* Explicit Halant :
|
|
* <HALANT> + <ZWNJ>
|
|
* Soft Halant :
|
|
* <HALANT> + <ZWJ>
|
|
*/
|
|
|
|
static void UConverter_fromUnicode_ISCII_OFFSETS_LOGIC(
|
|
UConverterFromUnicodeArgs * args, UErrorCode * err) {
|
|
const UChar *source = args->source;
|
|
const UChar *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 == NULL) || (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 converterd 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 = (UChar)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 */
|
|
UChar 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 }, /*DEFALT*/
|
|
{ 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){\
|
|
/* 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)++ = (UChar)targetUniChar; \
|
|
if(offsets){ \
|
|
*(offsets)++ = (int32_t)(offset); \
|
|
} \
|
|
}else{ \
|
|
args->converter->UCharErrorBuffer[args->converter->UCharErrorBufferLength++] = \
|
|
(UChar)targetUniChar; \
|
|
*err = U_BUFFER_OVERFLOW_ERROR; \
|
|
} \
|
|
}
|
|
|
|
#define GET_MAPPING(sourceChar,targetUniChar,data){ \
|
|
targetUniChar = toUnicodeTable[(sourceChar)] ; \
|
|
/* is the code point valid in current script? */ \
|
|
if(sourceChar> ASCII_END && \
|
|
(validityTable[(targetUniChar & 0x7F)] & data->currentMaskToUnicode)==0){ \
|
|
/* Vocallic RR is assigne in ISCII Telugu and Unicode */ \
|
|
if(data->currentDeltaToUnicode!=(TELUGU_DELTA) || \
|
|
targetUniChar!=VOCALLIC_RR){ \
|
|
targetUniChar=missingCharMarker; \
|
|
} \
|
|
} \
|
|
}
|
|
|
|
/***********
|
|
* 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 : Extention code is used to declare switching to Sanskrit and for obscure,
|
|
* obsolete characters
|
|
* Pre context
|
|
* i) Halant: if preceeded by a halant then it is a explicit halant
|
|
* ii) Nukta :
|
|
* a) if preceeded by a halant then it is a soft halant
|
|
* b) if preceeded by specific consonants and the ligatures have pre-composed
|
|
* characters in Unicode then convert to pre-composed characters
|
|
* iii) Danda: If Danda is preceeded by a Danda then convert to Double Danda
|
|
*
|
|
*/
|
|
|
|
static void UConverter_toUnicode_ISCII_OFFSETS_LOGIC(UConverterToUnicodeArgs *args, UErrorCode* err) {
|
|
const char *source = ( char *) args->source;
|
|
UChar *target = args->target;
|
|
const char *sourceLimit = args->sourceLimit;
|
|
const UChar* targetLimit = args->targetLimit;
|
|
uint32_t targetUniChar = 0x0000;
|
|
uint8_t sourceChar = 0x0000;
|
|
UConverterDataISCII* data;
|
|
UChar32* toUnicodeStatus=NULL;
|
|
UChar32 tempTargetUniChar = 0x0000;
|
|
UChar* contextCharToUnicode= NULL;
|
|
UBool found;
|
|
int i;
|
|
int offset = 0;
|
|
|
|
if ((args->converter == NULL) || (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 preform 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 accoding 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: /*falls through*/
|
|
case ATR:
|
|
*contextCharToUnicode = (UChar)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:
|
|
/* fall through */
|
|
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<sizeof(vowelSignESpecialCases)/sizeof(vowelSignESpecialCases[0]));
|
|
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 */
|
|
}
|
|
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 && (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 = (UChar) targetUniChar;
|
|
if (data->resetToDefaultToUnicode==TRUE) {
|
|
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 *
|
|
_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
|
|
_ISCIIGetUnicodeSet(const UConverter *cnv,
|
|
const USetAdder *sa,
|
|
UConverterUnicodeSet which,
|
|
UErrorCode *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);
|
|
}
|
|
|
|
static const UConverterImpl _ISCIIImpl={
|
|
|
|
UCNV_ISCII,
|
|
|
|
NULL,
|
|
NULL,
|
|
|
|
_ISCIIOpen,
|
|
_ISCIIClose,
|
|
_ISCIIReset,
|
|
|
|
UConverter_toUnicode_ISCII_OFFSETS_LOGIC,
|
|
UConverter_toUnicode_ISCII_OFFSETS_LOGIC,
|
|
UConverter_fromUnicode_ISCII_OFFSETS_LOGIC,
|
|
UConverter_fromUnicode_ISCII_OFFSETS_LOGIC,
|
|
NULL,
|
|
|
|
NULL,
|
|
_ISCIIgetName,
|
|
NULL,
|
|
_ISCII_SafeClone,
|
|
_ISCIIGetUnicodeSet
|
|
};
|
|
|
|
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={
|
|
sizeof(UConverterSharedData),
|
|
~((uint32_t) 0),
|
|
NULL,
|
|
NULL,
|
|
&_ISCIIStaticData,
|
|
FALSE,
|
|
&_ISCIIImpl,
|
|
0
|
|
};
|
|
|
|
#endif /* #if !UCONFIG_NO_LEGACY_CONVERSION */
|