208 lines
6.2 KiB
C
208 lines
6.2 KiB
C
/*
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*******************************************************************************
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* *
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* COPYRIGHT: *
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* (C) Copyright International Business Machines Corporation, 1998 *
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* Licensed Material - Program-Property of IBM - All Rights Reserved. *
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* US Government Users Restricted Rights - Use, duplication, or disclosure *
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* restricted by GSA ADP Schedule Contract with IBM Corp. *
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* *
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*******************************************************************************
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*
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*
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*
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* ucnv_bld.h:
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* Contains all internal and external data structure definitions
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* Created & Maitained by Bertrand A. Damiba
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*
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*
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*
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* ATTENTION:
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* ---------
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* Although the data structures in this file are open and stack allocatable
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* we reserve the right to hide them in further releases.
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*/
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#ifndef UCNV_BLD_H
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#define UCNV_BLD_H
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#include "utypes.h"
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#define UCNV_MAX_SUBCHAR_LEN 4
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#define UCNV_ERROR_BUFFER_LENGTH 20
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typedef struct CompactShortArray CompactShortArray;
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typedef struct CompactByteArray CompactByteArray;
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#define UCNV_IMPLEMENTED_CONVERSION_TYPES 9
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/*Sentinel Value used to check the integrity of the binary data files */
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#define UCNV_FILE_CHECK_MARKER 0xBEDA
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#define UCNV_COPYRIGHT_STRING \
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" * COPYRIGHT: *\n" \
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" * (C) Copyright International Business Machines Corporation, 1999 *\n"
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#define UCNV_COPYRIGHT_STRING_LENGTH 200
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/*maximum length of the converter names */
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#define UCNV_MAX_CONVERTER_NAME_LENGTH 60
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#define UCNV_MAX_FULL_FILE_NAME_LENGTH (600+UCNV_MAX_CONVERTER_NAME_LENGTH)
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/*Pointer to the aforementioned file */
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#define UCNV_MAX_LINE_TEXT (UCNV_MAX_CONVERTER_NAME_LENGTH*400)
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#define UCNV_SI 0x0F /*Shift in for EBDCDIC_STATEFUL and iso2022 states */
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#define UCNV_SO 0x0E /*Shift out for EBDCDIC_STATEFUL and iso2022 states */
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typedef enum {
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UCNV_UNSUPPORTED_CONVERTER = -1,
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UCNV_SBCS = 0,
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UCNV_DBCS = 1,
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UCNV_MBCS = 2,
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UCNV_LATIN_1 = 3,
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UCNV_UTF8 = 4,
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UCNV_UTF16_BigEndian = 5,
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UCNV_UTF16_LittleEndian = 6,
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UCNV_EBCDIC_STATEFUL = 7,
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UCNV_ISO_2022 = 8,
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/** Number of converter types for which we have conversion routines. */
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UCNV_NUMBER_OF_SUPPORTED_CONVERTER_TYPES = 9,
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UCNV_JIS = 9,
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UCNV_EUC = 10,
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UCNV_GB = 11
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} UConverterType;
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typedef enum {
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UCNV_UNKNOWN = -1,
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UCNV_IBM = 0
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} UConverterPlatform;
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/*Table Node Definitions */
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typedef struct
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{
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UChar toUnicode[256];
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CompactByteArray *fromUnicode;
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}
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UConverterSBCSTable;
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typedef struct
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{
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CompactShortArray *toUnicode;
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CompactShortArray *fromUnicode;
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}
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UConverterDBCSTable;
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typedef struct
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{
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bool_t starters[256];
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CompactShortArray *toUnicode;
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CompactShortArray *fromUnicode;
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}
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UConverterMBCSTable;
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typedef union
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{
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UConverterSBCSTable sbcs;
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UConverterDBCSTable dbcs;
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UConverterMBCSTable mbcs;
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}
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UConverterTable;
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/*Defines the struct of a UConverterSharedData the immutable, shared part of
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*UConverter
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*/
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typedef struct
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{
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uint32_t referenceCounter; /*used to count number of clients */
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char name[UCNV_MAX_CONVERTER_NAME_LENGTH]; /*internal name of the converter */
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UConverterPlatform platform; /*platform of the converter (only IBM now) */
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int32_t codepage; /*codepage # (now IBM-$codepage) */
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UConverterType conversionType; /*conversion type */
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int8_t minBytesPerChar; /*Minimum # bytes per char in this codepage */
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int8_t maxBytesPerChar; /*Maximum # bytes per char in this codepage */
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struct
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{ /*initial values of some members of the mutable part of object */
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uint32_t toUnicodeStatus;
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int8_t subCharLen;
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unsigned char subChar[UCNV_MAX_SUBCHAR_LEN];
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}
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defaultConverterValues;
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UConverterTable *table; /*Pointer to conversion data */
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}
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UConverterSharedData;
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/*Defines a UConverter, the lightweight mutable part the user sees */
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struct UConverter
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{
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int32_t toUnicodeStatus; /*Used to internalize stream status information */
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int32_t fromUnicodeStatus;
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int8_t invalidCharLength;
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int8_t invalidUCharLength;
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int8_t pad;
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int32_t mode;
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int8_t subCharLen; /*length of the codepage specific character sequence */
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unsigned char subChar[UCNV_MAX_SUBCHAR_LEN]; /*codepage specific character sequence */
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UChar UCharErrorBuffer[UCNV_ERROR_BUFFER_LENGTH]; /*used to store unicode data meant for
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*output stream by the Error function pointers
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*/
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unsigned char charErrorBuffer[UCNV_ERROR_BUFFER_LENGTH]; /*used to store codepage data meant for
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* output stream by the Error function pointers
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*/
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int8_t UCharErrorBufferLength; /*used to indicate the number of valid UChars
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*in charErrorBuffer
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*/
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int8_t charErrorBufferLength; /*used to indicate the number of valid bytes
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*in charErrorBuffer
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*/
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UChar invalidUCharBuffer[3];
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char invalidCharBuffer[UCNV_MAX_SUBCHAR_LEN];
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/*Error function pointer called when conversion issues
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*occur during a T_UConverter_fromUnicode call
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*/
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void (*fromUCharErrorBehaviour) (struct UConverter *,
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char **,
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const char *,
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const UChar **,
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const UChar *,
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int32_t* offsets,
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bool_t,
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UErrorCode *);
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/*Error function pointer called when conversion issues
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*occur during a T_UConverter_toUnicode call
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*/
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void (*fromCharErrorBehaviour) (struct UConverter *,
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UChar **,
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const UChar *,
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const char **,
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const char *,
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int32_t* offsets,
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bool_t,
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UErrorCode *);
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UConverterSharedData *sharedData; /*Pointer to the shared immutable part of the
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*converter object
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*/
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void *extraInfo; /*currently only used to point to a struct containing UConverter used by iso 2022
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Could be used by clients writing their own call back function to
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pass context to them
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*/
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};
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typedef struct UConverter UConverter;
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typedef struct
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{
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UConverter *currentConverter;
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unsigned char escSeq2022[10];
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int8_t escSeq2022Length;
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}
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UConverterDataISO2022;
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#endif /* _UCNV_BLD */
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