| /* |
| ********************************************************************** |
| * Copyright (C) 1999-2001, International Business Machines |
| * Corporation and others. All Rights Reserved. |
| ********************************************************************** |
| * |
| * |
| * ucnv_bld.h: |
| * Contains internal data structure definitions |
| * Created by Bertrand A. Damiba |
| * |
| * Change history: |
| * |
| * 06/29/2000 helena Major rewrite of the callback APIs. |
| */ |
| |
| #ifndef UCNV_BLD_H |
| #define UCNV_BLD_H |
| |
| #include "unicode/utypes.h" |
| #include "unicode/ucnv.h" |
| #include "unicode/ucnv_err.h" |
| |
| |
| /* size of the overflow buffers in UConverter, enough for escaping callbacks */ |
| #define UCNV_ERROR_BUFFER_LENGTH 32 |
| |
| #define UCNV_MAX_SUBCHAR_LEN 4 |
| |
| U_CDECL_BEGIN /* We must declare the following as 'extern "C"' so that if ucnv |
| itself is compiled under C++, the linkage of the funcptrs will |
| work. |
| */ |
| |
| union UConverterTable; |
| typedef union UConverterTable UConverterTable; |
| |
| struct UConverterImpl; |
| typedef struct UConverterImpl UConverterImpl; |
| |
| /** values for the unicodeMask */ |
| #define UCNV_HAS_SUPPLEMENTARY 1 |
| #define UCNV_HAS_SURROGATES 2 |
| |
| typedef struct UConverterStaticData { /* +offset: size */ |
| uint32_t structSize; /* +0: 4 Size of this structure */ |
| |
| char name |
| [UCNV_MAX_CONVERTER_NAME_LENGTH]; /* +4: 60 internal name of the converter- invariant chars */ |
| |
| int32_t codepage; /* +64: 4 codepage # (now IBM-$codepage) */ |
| |
| int8_t platform; /* +68: 1 platform of the converter (only IBM now) */ |
| int8_t conversionType; /* +69: 1 conversion type */ |
| |
| int8_t minBytesPerChar; /* +70: 1 Minimum # bytes per char in this codepage */ |
| int8_t maxBytesPerChar; /* +71: 1 Maximum # bytes per char in this codepage */ |
| |
| uint8_t subChar[UCNV_MAX_SUBCHAR_LEN]; /* +72: 4 [note: 4 and 8 byte boundary] */ |
| int8_t subCharLen; /* +76: 1 */ |
| |
| uint8_t hasToUnicodeFallback; /* +77: 1 UBool needs to be changed to UBool to be consistent across platform */ |
| uint8_t hasFromUnicodeFallback; /* +78: 1 */ |
| uint8_t unicodeMask; /* +79: 1 bit 0: has supplementary bit 1: has single surrogates */ |
| uint8_t subChar1; /* +80: 1 single-byte substitution character for IBM MBCS (0 if none) */ |
| uint8_t reserved[19]; /* +81: 19 to round out the structure */ |
| /* total size: 100 */ |
| } UConverterStaticData; |
| |
| /* |
| * Defines the UConverterSharedData struct, |
| * the immutable, shared part of UConverter. |
| */ |
| struct UConverterSharedData { |
| uint32_t structSize; /* Size of this structure */ |
| uint32_t referenceCounter; /* used to count number of clients, 0xffffffff for static SharedData */ |
| |
| const void *dataMemory; /* from udata_openChoice() */ |
| UConverterTable *table; /* Pointer to conversion data */ |
| |
| const UConverterStaticData *staticData; /* pointer to the static (non changing) data. */ |
| UBool staticDataOwned; /* T if we own the staticData */ |
| const UConverterImpl *impl; /* vtable-style struct of mostly function pointers */ |
| |
| /*initial values of some members of the mutable part of object */ |
| uint32_t toUnicodeStatus; |
| }; |
| |
| typedef struct UConverterSharedData UConverterSharedData; |
| |
| /* Defines a UConverter, the lightweight mutable part the user sees */ |
| |
| struct UConverter { |
| uint32_t toUnicodeStatus; /* Used to internalize stream status information */ |
| uint8_t toUBytes[7]; /* more "toU status"; keeps the bytes of the current character */ |
| int8_t toULength; /* number of bytes in toUBytes */ |
| uint32_t fromUnicodeStatus; |
| UChar fromUSurrogateLead; /* similar to toUBytes; keeps the lead surrogate of the current character */ |
| int32_t mode; |
| UBool useFallback; |
| |
| int8_t subCharLen; /* length of the codepage specific character sequence */ |
| int8_t invalidCharLength; |
| int8_t invalidUCharLength; |
| int8_t charErrorBufferLength; /* number of valid bytes in charErrorBuffer */ |
| int8_t UCharErrorBufferLength; /* number of valid UChars in charErrorBuffer */ |
| |
| uint8_t subChar1; /* single-byte substitution character if different from subChar */ |
| uint8_t subChar[UCNV_MAX_SUBCHAR_LEN]; /* codepage specific character sequence */ |
| char invalidCharBuffer[UCNV_MAX_SUBCHAR_LEN]; /* bytes from last error/callback situation */ |
| uint8_t charErrorBuffer[UCNV_ERROR_BUFFER_LENGTH]; /* codepage output from Error functions */ |
| |
| UChar invalidUCharBuffer[3]; /* UChars from last error/callback situation */ |
| UChar UCharErrorBuffer[UCNV_ERROR_BUFFER_LENGTH]; /* unicode output from Error functions */ |
| |
| /* |
| * Error function pointer called when conversion issues |
| * occur during a ucnv_fromUnicode call |
| */ |
| void (U_EXPORT2 *fromUCharErrorBehaviour) (const void *context, |
| UConverterFromUnicodeArgs *args, |
| const UChar *codeUnits, |
| int32_t length, |
| UChar32 codePoint, |
| UConverterCallbackReason reason, |
| UErrorCode *); |
| /* |
| * Error function pointer called when conversion issues |
| * occur during a T_UConverter_toUnicode call |
| */ |
| void (U_EXPORT2 *fromCharErrorBehaviour) (const void *context, |
| UConverterToUnicodeArgs *args, |
| const char *codeUnits, |
| int32_t length, |
| UConverterCallbackReason reason, |
| UErrorCode *); |
| |
| const void *fromUContext; |
| const void *toUContext; |
| UBool isCopyLocal; /* TRUE if created by safeClone with no allocation or ref count */ |
| UConverterSharedData *sharedData; /* Pointer to the shared immutable part of the converter object */ |
| |
| /* |
| * currently only used to point to a struct containing UConverter used by iso 2022; |
| * could be used by clients writing their own call back function to pass context to them |
| */ |
| void *extraInfo; |
| }; |
| |
| U_CDECL_END /* end of UConverter */ |
| |
| typedef struct |
| { |
| UConverter *OptGrpConverter[0x20]; /* Converter per Opt. grp. */ |
| uint8_t OptGroup; /* default Opt. grp. for this LMBCS session */ |
| uint8_t localeConverterIndex; /* reasonable locale match for index */ |
| |
| } |
| UConverterDataLMBCS; |
| |
| #define CONVERTER_FILE_EXTENSION ".cnv" |
| |
| #endif /* _UCNV_BLD */ |