1ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru/* 2ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru********************************************************************** 385bf2e2fbc60a9f938064abc8127d61da7d19882Claire Ho* Copyright (C) 1999-2009 International Business Machines 4ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru* Corporation and others. All Rights Reserved. 5ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru********************************************************************** 6ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru* 7ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru* 8ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru* ucnv_bld.h: 9ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru* Contains internal data structure definitions 10ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru* Created by Bertrand A. Damiba 11ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru* 12ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru* Change history: 13ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru* 14ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru* 06/29/2000 helena Major rewrite of the callback APIs. 15ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru*/ 16ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru 17ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru#ifndef UCNV_BLD_H 18ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru#define UCNV_BLD_H 19ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru 20ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru#include "unicode/utypes.h" 21ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru 22ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru#if !UCONFIG_NO_CONVERSION 23ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru 24ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru#include "unicode/ucnv.h" 25ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru#include "unicode/ucnv_err.h" 26ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru#include "ucnv_cnv.h" 27ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru#include "ucnvmbcs.h" 28ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru#include "ucnv_ext.h" 29ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru#include "udataswp.h" 30ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru 31ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru/* size of the overflow buffers in UConverter, enough for escaping callbacks */ 32ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru#define UCNV_ERROR_BUFFER_LENGTH 32 33ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru 34ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru/* at most 4 bytes per substitution character (part of .cnv file format! see UConverterStaticData) */ 35ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru#define UCNV_MAX_SUBCHAR_LEN 4 36ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru 37ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru/* at most 8 bytes per character in toUBytes[] (UTF-8 uses up to 6) */ 38ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru#define UCNV_MAX_CHAR_LEN 8 39ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru 40ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru/* converter options bits */ 41ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru#define UCNV_OPTION_VERSION 0xf 42ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru#define UCNV_OPTION_SWAP_LFNL 0x10 43ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru 4485bf2e2fbc60a9f938064abc8127d61da7d19882Claire Ho#define UCNV_GET_VERSION(cnv) ((cnv)->options&UCNV_OPTION_VERSION) 45ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru 46ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste QueruU_CDECL_BEGIN /* We must declare the following as 'extern "C"' so that if ucnv 47ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru itself is compiled under C++, the linkage of the funcptrs will 48ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru work. 49ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru */ 50ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru 51ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queruunion UConverterTable { 52ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru UConverterMBCSTable mbcs; 53ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru}; 54ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru 55ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Querutypedef union UConverterTable UConverterTable; 56ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru 57ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Querustruct UConverterImpl; 58ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Querutypedef struct UConverterImpl UConverterImpl; 59ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru 60ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru/** values for the unicodeMask */ 61ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru#define UCNV_HAS_SUPPLEMENTARY 1 62ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru#define UCNV_HAS_SURROGATES 2 63ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru 64ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Querutypedef struct UConverterStaticData { /* +offset: size */ 65ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru uint32_t structSize; /* +0: 4 Size of this structure */ 66ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru 67ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru char name 68ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru [UCNV_MAX_CONVERTER_NAME_LENGTH]; /* +4: 60 internal name of the converter- invariant chars */ 69ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru 70ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru int32_t codepage; /* +64: 4 codepage # (now IBM-$codepage) */ 71ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru 72ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru int8_t platform; /* +68: 1 platform of the converter (only IBM now) */ 73ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru int8_t conversionType; /* +69: 1 conversion type */ 74ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru 75ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru int8_t minBytesPerChar; /* +70: 1 Minimum # bytes per char in this codepage */ 76ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru int8_t maxBytesPerChar; /* +71: 1 Maximum # bytes output per UChar in this codepage */ 77ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru 78ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru uint8_t subChar[UCNV_MAX_SUBCHAR_LEN]; /* +72: 4 [note: 4 and 8 byte boundary] */ 79ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru int8_t subCharLen; /* +76: 1 */ 80ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru 81ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru uint8_t hasToUnicodeFallback; /* +77: 1 UBool needs to be changed to UBool to be consistent across platform */ 82ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru uint8_t hasFromUnicodeFallback; /* +78: 1 */ 83ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru uint8_t unicodeMask; /* +79: 1 bit 0: has supplementary bit 1: has single surrogates */ 84ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru uint8_t subChar1; /* +80: 1 single-byte substitution character for IBM MBCS (0 if none) */ 85ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru uint8_t reserved[19]; /* +81: 19 to round out the structure */ 86ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru /* total size: 100 */ 87ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru} UConverterStaticData; 88ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru 89ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru/* 90ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru * Defines the UConverterSharedData struct, 91ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru * the immutable, shared part of UConverter. 92ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru */ 93ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Querustruct UConverterSharedData { 94ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru uint32_t structSize; /* Size of this structure */ 95ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru uint32_t referenceCounter; /* used to count number of clients, 0xffffffff for static SharedData */ 96ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru 97ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru const void *dataMemory; /* from udata_openChoice() - for cleanup */ 98ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru void *table; /* Unused. This used to be a UConverterTable - Pointer to conversion data - see mbcs below */ 99ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru 100ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru const UConverterStaticData *staticData; /* pointer to the static (non changing) data. */ 101ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru 102ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru UBool sharedDataCached; /* TRUE: shared data is in cache, don't destroy on ucnv_close() if 0 ref. FALSE: shared data isn't in the cache, do attempt to clean it up if the ref is 0 */ 103ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru /*UBool staticDataOwned; TRUE if static data owned by shared data & should be freed with it, NEVER true for udata() loaded statics. This ignored variable was removed to make space for sharedDataCached. */ 104ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru 105ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru const UConverterImpl *impl; /* vtable-style struct of mostly function pointers */ 106ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru 107ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru /*initial values of some members of the mutable part of object */ 108ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru uint32_t toUnicodeStatus; 109ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru 110ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru /* 111ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru * Shared data structures currently come in two flavors: 112ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru * - readonly for built-in algorithmic converters 113ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru * - allocated for MBCS, with a pointer to an allocated UConverterTable 114ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru * which always has a UConverterMBCSTable 115ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru * 116ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru * To eliminate one allocation, I am making the UConverterMBCSTable 117ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru * a member of the shared data. It is the last member so that static 118ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru * definitions of UConverterSharedData work as before. 119ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru * The table field above also remains to avoid updating all static 120ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru * definitions, but is now unused. 121ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru * 122ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru * markus 2003-nov-07 123ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru */ 124ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru UConverterMBCSTable mbcs; 125ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru}; 126ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru 127ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru/* Defines a UConverter, the lightweight mutable part the user sees */ 128ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru 129ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Querustruct UConverter { 130ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru /* 131ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru * Error function pointer called when conversion issues 132ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru * occur during a ucnv_fromUnicode call 133ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru */ 134ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru void (U_EXPORT2 *fromUCharErrorBehaviour) (const void *context, 135ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru UConverterFromUnicodeArgs *args, 136ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru const UChar *codeUnits, 137ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru int32_t length, 138ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru UChar32 codePoint, 139ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru UConverterCallbackReason reason, 140ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru UErrorCode *); 141ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru /* 142ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru * Error function pointer called when conversion issues 143ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru * occur during a ucnv_toUnicode call 144ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru */ 145ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru void (U_EXPORT2 *fromCharErrorBehaviour) (const void *context, 146ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru UConverterToUnicodeArgs *args, 147ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru const char *codeUnits, 148ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru int32_t length, 149ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru UConverterCallbackReason reason, 150ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru UErrorCode *); 151ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru 152ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru /* 153ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru * Pointer to additional data that depends on the converter type. 154ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru * Used by ISO 2022, SCSU, GB 18030 converters, possibly more. 155ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru */ 156ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru void *extraInfo; 157ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru 158ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru const void *fromUContext; 159ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru const void *toUContext; 160ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru 161ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru /* 162ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru * Pointer to charset bytes for substitution string if subCharLen>0, 163ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru * or pointer to Unicode string (UChar *) if subCharLen<0. 164ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru * subCharLen==0 is equivalent to using a skip callback. 165ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru * If the pointer is !=subUChars then it is allocated with 166ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru * UCNV_ERROR_BUFFER_LENGTH * U_SIZEOF_UCHAR bytes. 167ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru * The subUChars field is declared as UChar[] not uint8_t[] to 168ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru * guarantee alignment for UChars. 169ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru */ 170ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru uint8_t *subChars; 171ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru 172ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru UConverterSharedData *sharedData; /* Pointer to the shared immutable part of the converter object */ 173ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru 174ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru uint32_t options; /* options flags from UConverterOpen, may contain additional bits */ 175ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru 176ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru UBool sharedDataIsCached; /* TRUE: shared data is in cache, don't destroy on ucnv_close() if 0 ref. FALSE: shared data isn't in the cache, do attempt to clean it up if the ref is 0 */ 177ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru UBool isCopyLocal; /* TRUE if UConverter is not owned and not released in ucnv_close() (stack-allocated, safeClone(), etc.) */ 178ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru UBool isExtraLocal; /* TRUE if extraInfo is not owned and not released in ucnv_close() (stack-allocated, safeClone(), etc.) */ 179ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru 180ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru UBool useFallback; 181ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru int8_t toULength; /* number of bytes in toUBytes */ 182ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru uint8_t toUBytes[UCNV_MAX_CHAR_LEN-1];/* more "toU status"; keeps the bytes of the current character */ 183ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru uint32_t toUnicodeStatus; /* Used to internalize stream status information */ 184ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru int32_t mode; 185ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru uint32_t fromUnicodeStatus; 186ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru 187ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru /* 188ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru * More fromUnicode() status. Serves 3 purposes: 189ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru * - keeps a lead surrogate between buffers (similar to toUBytes[]) 190ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru * - keeps a lead surrogate at the end of the stream, 191ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru * which the framework handles as truncated input 192ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru * - if the fromUnicode() implementation returns to the framework 193ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru * (ucnv.c ucnv_fromUnicode()), then the framework calls the callback 194ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru * for this code point 195ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru */ 196ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru UChar32 fromUChar32; 197ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru 198ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru /* 199ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru * value for ucnv_getMaxCharSize() 200ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru * 201ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru * usually simply copied from the static data, but ucnvmbcs.c modifies 202ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru * the value depending on the converter type and options 203ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru */ 204ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru int8_t maxBytesPerUChar; 205ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru 206ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru int8_t subCharLen; /* length of the codepage specific character sequence */ 207ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru int8_t invalidCharLength; 208ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru int8_t charErrorBufferLength; /* number of valid bytes in charErrorBuffer */ 209ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru 210ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru int8_t invalidUCharLength; 211ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru int8_t UCharErrorBufferLength; /* number of valid UChars in charErrorBuffer */ 212ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru 213ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru uint8_t subChar1; /* single-byte substitution character if different from subChar */ 214ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru UBool useSubChar1; 215ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru char invalidCharBuffer[UCNV_MAX_CHAR_LEN]; /* bytes from last error/callback situation */ 216ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru uint8_t charErrorBuffer[UCNV_ERROR_BUFFER_LENGTH]; /* codepage output from Error functions */ 217ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru UChar subUChars[UCNV_MAX_SUBCHAR_LEN/U_SIZEOF_UCHAR]; /* see subChars documentation */ 218ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru 219ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru UChar invalidUCharBuffer[U16_MAX_LENGTH]; /* UChars from last error/callback situation */ 220ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru UChar UCharErrorBuffer[UCNV_ERROR_BUFFER_LENGTH]; /* unicode output from Error functions */ 221ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru 222ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru /* fields for conversion extension */ 223ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru 224ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru /* store previous UChars/chars to continue partial matches */ 225ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru UChar32 preFromUFirstCP; /* >=0: partial match */ 226ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru UChar preFromU[UCNV_EXT_MAX_UCHARS]; 227ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru char preToU[UCNV_EXT_MAX_BYTES]; 228ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru int8_t preFromULength, preToULength; /* negative: replay */ 229ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru int8_t preToUFirstLength; /* length of first character */ 23085bf2e2fbc60a9f938064abc8127d61da7d19882Claire Ho 23185bf2e2fbc60a9f938064abc8127d61da7d19882Claire Ho /* new fields for ICU 4.0 */ 23285bf2e2fbc60a9f938064abc8127d61da7d19882Claire Ho UConverterCallbackReason toUCallbackReason; /* (*fromCharErrorBehaviour) reason, set when error is detected */ 233ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru}; 234ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru 235ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste QueruU_CDECL_END /* end of UConverter */ 236ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru 237ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru#define CONVERTER_FILE_EXTENSION ".cnv" 238ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru 239ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru 240ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru/** 241ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru * Return the number of all converter names. 242ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru * @param pErrorCode The error code 243ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru * @return the number of all converter names 244ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru */ 245ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste QueruU_CFUNC uint16_t 246ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queruucnv_bld_countAvailableConverters(UErrorCode *pErrorCode); 247ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru 248ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru/** 249ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru * Return the (n)th converter name in mixed case, or NULL 250ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru * if there is none (typically, if the data cannot be loaded). 251ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru * 0<=index<ucnv_io_countAvailableConverters(). 252ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru * @param n The number specifies which converter name to get 253ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru * @param pErrorCode The error code 254ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru * @return the (n)th converter name in mixed case, or NULL if there is none. 255ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru */ 256ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste QueruU_CFUNC const char * 257ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queruucnv_bld_getAvailableConverter(uint16_t n, UErrorCode *pErrorCode); 258ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru 259ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru/** 260ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru * Load a non-algorithmic converter. 261ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru * If pkg==NULL, then this function must be called inside umtx_lock(&cnvCacheMutex). 262ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru */ 263ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste QueruUConverterSharedData * 264ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queruucnv_load(UConverterLoadArgs *pArgs, UErrorCode *err); 265ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru 266ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru/** 267ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru * Unload a non-algorithmic converter. 268ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru * It must be sharedData->referenceCounter != ~0 269ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru * and this function must be called inside umtx_lock(&cnvCacheMutex). 270ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru */ 271ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queruvoid 272ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queruucnv_unload(UConverterSharedData *sharedData); 273ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru 274ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru/** 275ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru * Swap ICU .cnv conversion tables. See udataswp.h. 276ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru * @internal 277ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru */ 278ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste QueruU_CAPI int32_t U_EXPORT2 279ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queruucnv_swap(const UDataSwapper *ds, 280ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru const void *inData, int32_t length, void *outData, 281ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru UErrorCode *pErrorCode); 282ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru 283ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru#endif 284ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru 285ac04d0bbe12b3ef54518635711412f178cb4d16Jean-Baptiste Queru#endif /* _UCNV_BLD */ 286