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Diffstat (limited to 'deps/node/deps/icu-small/source/common/ucnvmbcs.h')
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1 files changed, 0 insertions, 605 deletions
diff --git a/deps/node/deps/icu-small/source/common/ucnvmbcs.h b/deps/node/deps/icu-small/source/common/ucnvmbcs.h deleted file mode 100644 index a750b92e..00000000 --- a/deps/node/deps/icu-small/source/common/ucnvmbcs.h +++ /dev/null @@ -1,605 +0,0 @@ -// © 2016 and later: Unicode, Inc. and others. -// License & terms of use: http://www.unicode.org/copyright.html -/* -****************************************************************************** -* -* Copyright (C) 2000-2013, International Business Machines -* Corporation and others. All Rights Reserved. -* -****************************************************************************** -* file name: ucnvmbcs.h -* encoding: UTF-8 -* tab size: 8 (not used) -* indentation:4 -* -* created on: 2000jul07 -* created by: Markus W. Scherer -*/ - -#ifndef __UCNVMBCS_H__ -#define __UCNVMBCS_H__ - -#include "unicode/utypes.h" - -#if !UCONFIG_NO_CONVERSION - -#include "unicode/ucnv.h" -#include "ucnv_cnv.h" -#include "ucnv_ext.h" - -/** - * ICU conversion (.cnv) data file structure, following the usual UDataInfo - * header. - * - * Format version: 6.2 - * - * struct UConverterStaticData -- struct containing the converter name, IBM CCSID, - * min/max bytes per character, etc. - * see ucnv_bld.h - * - * -------------------- - * - * The static data is followed by conversionType-specific data structures. - * At the moment, there are only variations of MBCS converters. They all have - * the same toUnicode structures, while the fromUnicode structures for SBCS - * differ from those for other MBCS-style converters. - * - * _MBCSHeader.version 5 is optional and not backward-compatible - * (as usual for changes in the major version field). - * - * Versions 5.m work like versions 4.m except: - * - The _MBCSHeader has variable length (and is always longer than in version 4). - * See the struct _MBCSHeader further description below. - * - There is a set of flags which indicate further incompatible changes. - * (Reader code must reject the file if it does not recognize them all.) - * - In particular, one of these flags indicates that most of the fromUnicode - * data is missing and must be reconstituted from the toUnicode data - * and from the utf8Friendly mbcsIndex at load time. - * (This only works with a utf8Friendly table.) - * In this case, makeconv may increase maxFastUChar automatically to U+FFFF. - * - * The first of these versions is 5.3, which is like 4.3 except for the differences above. - * - * When possible, makeconv continues to generate version 4.m files. - * - * _MBCSHeader.version 5.4/4.4 supports "good one-way" mappings (|4) - * in the extension tables (fromUTableValues bit 30). See ucnv_ext.h for details. - * - * _MBCSHeader.version 4.3 optionally modifies the fromUnicode data structures - * slightly and optionally adds a table for conversion to MBCS (non-SBCS) - * charsets. - * - * The modifications are to make the data utf8Friendly. Not every 4.3 file - * file contains utf8Friendly data. - * It is utf8Friendly if _MBCSHeader.version[2]!=0. - * In this case, the data structures are utf8Friendly up to the code point - * maxFastUChar=((_MBCSHeader.version[2]<<8)|0xff) - * - * A utf8Friendly file has fromUnicode stage 3 entries for code points up to - * maxFastUChar allocated in blocks of 64 for indexing with the 6 bits from - * a UTF-8 trail byte. ASCII is allocated linearly with 128 contiguous entries. - * - * In addition, a utf8Friendly MBCS file contains an additional - * uint16_t mbcsIndex[(maxFastUChar+1)>>6]; - * which replaces the stage 1 and 2 tables for indexing with bits from the - * UTF-8 lead byte and middle trail byte. Unlike the older MBCS stage 2 table, - * the mbcsIndex does not contain roundtrip flags. Therefore, all fallbacks - * from code points up to maxFastUChar (and roundtrips to 0x00) are moved to - * the extension data structure. This also allows for faster roundtrip - * conversion from UTF-16. - * - * SBCS files do not contain an additional sbcsIndex[] array because the - * proportional size increase would be noticeable, but the runtime - * code builds one for the code point range for which the runtime conversion - * code is optimized. - * - * For SBCS, maxFastUChar should be at least U+0FFF. The initial makeconv - * implementation sets it to U+1FFF. Because the sbcsIndex is not stored in - * the file, a larger maxFastUChar only affects stage 3 block allocation size - * and is free in empty blocks. (Larger blocks with sparse contents cause larger - * files.) U+1FFF includes almost all of the small scripts. - * U+0FFF covers UTF-8 two-byte sequences and three-byte sequences starting with - * 0xe0. This includes most scripts with legacy SBCS charsets. - * The initial runtime implementation using 4.3 files only builds an sbcsIndex - * for code points up to U+0FFF. - * - * For MBCS, maxFastUChar should be at least U+D7FF (=initial value). - * This boundary is convenient because practically all of the commonly used - * characters are below it, and because it is the boundary to surrogate - * code points, above which special handling is necessary anyway. - * (Surrogate pair assembly for UTF-16, validity checking for UTF-8.) - * - * maxFastUChar could be up to U+FFFF to cover the whole BMP, which could be - * useful especially for conversion from UTF-8 when the input can be assumed - * to be valid, because the surrogate range would then not have to be - * checked. - * (With maxFastUChar=0xffff, makeconv would have to check for mbcsIndex value - * overflow because with the all-unassigned block 0 and nearly full mappings - * from the BMP it is theoretically possible that an index into stage 3 - * exceeds 16 bits.) - * - * _MBCSHeader.version 4.2 adds an optional conversion extension data structure. - * If it is present, then an ICU version reading header versions 4.0 or 4.1 - * will be able to use the base table and ignore the extension. - * - * The unicodeMask in the static data is part of the base table data structure. - * Especially, the UCNV_HAS_SUPPLEMENTARY flag determines the length of the - * fromUnicode stage 1 array. - * The static data unicodeMask refers only to the base table's properties if - * a base table is included. - * In an extension-only file, the static data unicodeMask is 0. - * The extension data indexes have a separate field with the unicodeMask flags. - * - * MBCS-style data structure following the static data. - * Offsets are counted in bytes from the beginning of the MBCS header structure. - * Details about usage in comments in ucnvmbcs.c. - * - * struct _MBCSHeader (see the definition in this header file below) - * contains 32-bit fields as follows: - * 8 values: - * 0 uint8_t[4] MBCS version in UVersionInfo format (currently 4.3.x.0) - * 1 uint32_t countStates - * 2 uint32_t countToUFallbacks - * 3 uint32_t offsetToUCodeUnits - * 4 uint32_t offsetFromUTable - * 5 uint32_t offsetFromUBytes - * 6 uint32_t flags, bits: - * 31.. 8 offsetExtension -- _MBCSHeader.version 4.2 (ICU 2.8) and higher - * 0 for older versions and if - * there is not extension structure - * 7.. 0 outputType - * 7 uint32_t fromUBytesLength -- _MBCSHeader.version 4.1 (ICU 2.4) and higher - * counts bytes in fromUBytes[] - * - * New and required in version 5: - * 8 uint32_t options, bits: - * 31..16 reserved for flags that can be added without breaking - * backward compatibility - * 15.. 6 reserved for flags whose addition will break - * backward compatibility - * 6 MBCS_OPT_FROM_U -- if set, - * then most of the fromUnicode data is omitted; - * fullStage2Length is present and the missing - * bottom part of stage 2 must be reconstituted from - * the toUnicode data; - * stage 3 is missing completely as well; - * not used for SBCS tables - * 5.. 0 length of the _MBCSHeader (number of uint32_t) - * - * New and optional in version 5: - * 9 uint32_t fullStage2Length: used if MBCS_OPT_FROM_U is set - * specifies the full length of stage 2 - * including the omitted part - * - * if(outputType==MBCS_OUTPUT_EXT_ONLY) { - * -- base table name for extension-only table - * char baseTableName[variable]; -- with NUL plus padding for 4-alignment - * - * -- all _MBCSHeader fields except for version and flags are 0 - * } else { - * -- normal base table with optional extension - * - * int32_t stateTable[countStates][256]; - * - * struct _MBCSToUFallback { (fallbacks are sorted by offset) - * uint32_t offset; - * UChar32 codePoint; - * } toUFallbacks[countToUFallbacks]; - * - * uint16_t unicodeCodeUnits[(offsetFromUTable-offsetToUCodeUnits)/2]; - * (padded to an even number of units) - * - * -- stage 1 tables - * if(staticData.unicodeMask&UCNV_HAS_SUPPLEMENTARY) { - * -- stage 1 table for all of Unicode - * uint16_t fromUTable[0x440]; (32-bit-aligned) - * } else { - * -- BMP-only tables have a smaller stage 1 table - * uint16_t fromUTable[0x40]; (32-bit-aligned) - * } - * - * -- stage 2 tables - * length determined by top of stage 1 and bottom of stage 3 tables - * if(outputType==MBCS_OUTPUT_1) { - * -- SBCS: pure indexes - * uint16_t stage 2 indexes[?]; - * } else { - * -- DBCS, MBCS, EBCDIC_STATEFUL, ...: roundtrip flags and indexes - * uint32_t stage 2 flags and indexes[?]; - * if(options&MBCS_OPT_NO_FROM_U) { - * stage 2 really has length fullStage2Length - * and the omitted lower part must be reconstituted from - * the toUnicode data - * } - * } - * - * -- stage 3 tables with byte results - * if(outputType==MBCS_OUTPUT_1) { - * -- SBCS: each 16-bit result contains flags and the result byte, see ucnvmbcs.c - * uint16_t fromUBytes[fromUBytesLength/2]; - * } else if(!(options&MBCS_OPT_NO_FROM_U)) { - * -- DBCS, MBCS, EBCDIC_STATEFUL, ... 2/3/4 bytes result, see ucnvmbcs.c - * uint8_t fromUBytes[fromUBytesLength]; or - * uint16_t fromUBytes[fromUBytesLength/2]; or - * uint32_t fromUBytes[fromUBytesLength/4]; - * } else { - * fromUBytes[] must be reconstituted from the toUnicode data - * } - * - * -- optional utf8Friendly mbcsIndex -- _MBCSHeader.version 4.3 (ICU 3.8) and higher - * if(outputType!=MBCS_OUTPUT_1 && - * _MBCSHeader.version[1]>=3 && - * (maxFastUChar=_MBCSHeader.version[2])!=0 - * ) { - * maxFastUChar=(maxFastUChar<<8)|0xff; - * uint16_t mbcsIndex[(maxFastUChar+1)>>6]; - * } - * } - * - * -- extension table, details see ucnv_ext.h - * int32_t indexes[>=32]; ... - */ - -/* MBCS converter data and state -------------------------------------------- */ - -enum { - MBCS_MAX_STATE_COUNT=128 -}; - -/** - * MBCS action codes for conversions to Unicode. - * These values are in bits 23..20 of the state table entries. - */ -enum { - MBCS_STATE_VALID_DIRECT_16, - MBCS_STATE_VALID_DIRECT_20, - - MBCS_STATE_FALLBACK_DIRECT_16, - MBCS_STATE_FALLBACK_DIRECT_20, - - MBCS_STATE_VALID_16, - MBCS_STATE_VALID_16_PAIR, - - MBCS_STATE_UNASSIGNED, - MBCS_STATE_ILLEGAL, - - MBCS_STATE_CHANGE_ONLY -}; - -/* Macros for state table entries */ -#define MBCS_ENTRY_TRANSITION(state, offset) (int32_t)(((int32_t)(state)<<24L)|(offset)) -#define MBCS_ENTRY_TRANSITION_SET_OFFSET(entry, offset) (int32_t)(((entry)&0xff000000)|(offset)) -#define MBCS_ENTRY_TRANSITION_ADD_OFFSET(entry, offset) (int32_t)((entry)+(offset)) - -#define MBCS_ENTRY_FINAL(state, action, value) (int32_t)(0x80000000|((int32_t)(state)<<24L)|((action)<<20L)|(value)) -#define MBCS_ENTRY_SET_FINAL(entry) (int32_t)((entry)|0x80000000) -#define MBCS_ENTRY_FINAL_SET_ACTION(entry, action) (int32_t)(((entry)&0xff0fffff)|((int32_t)(action)<<20L)) -#define MBCS_ENTRY_FINAL_SET_VALUE(entry, value) (int32_t)(((entry)&0xfff00000)|(value)) -#define MBCS_ENTRY_FINAL_SET_ACTION_VALUE(entry, action, value) (int32_t)(((entry)&0xff000000)|((int32_t)(action)<<20L)|(value)) - -#define MBCS_ENTRY_SET_STATE(entry, state) (int32_t)(((entry)&0x80ffffff)|((int32_t)(state)<<24L)) - -#define MBCS_ENTRY_STATE(entry) ((((uint32_t)entry)>>24)&0x7f) - -#define MBCS_ENTRY_IS_TRANSITION(entry) ((entry)>=0) -#define MBCS_ENTRY_IS_FINAL(entry) ((entry)<0) - -#define MBCS_ENTRY_TRANSITION_STATE(entry) (((uint32_t)entry)>>24) -#define MBCS_ENTRY_TRANSITION_OFFSET(entry) ((entry)&0xffffff) - -#define MBCS_ENTRY_FINAL_STATE(entry) ((((uint32_t)entry)>>24)&0x7f) -#define MBCS_ENTRY_FINAL_IS_VALID_DIRECT_16(entry) ((entry)<(int32_t)0x80100000) -#define MBCS_ENTRY_FINAL_ACTION(entry) ((((uint32_t)entry)>>20)&0xf) -#define MBCS_ENTRY_FINAL_VALUE(entry) ((entry)&0xfffff) -#define MBCS_ENTRY_FINAL_VALUE_16(entry) (uint16_t)(entry) - -#define IS_ASCII_ROUNDTRIP(b, asciiRoundtrips) (((asciiRoundtrips) & (1<<((b)>>2)))!=0) - -/* single-byte fromUnicode: get the 16-bit result word */ -#define MBCS_SINGLE_RESULT_FROM_U(table, results, c) (results)[ (table)[ (table)[(c)>>10] +(((c)>>4)&0x3f) ] +((c)&0xf) ] - -/* single-byte fromUnicode using the sbcsIndex */ -#define SBCS_RESULT_FROM_LOW_BMP(table, results, c) (results)[ (table)[(c)>>6] +((c)&0x3f) ] - -/* single-byte fromUTF8 using the sbcsIndex; l and t must be masked externally; can be l=0 and t<=0x7f */ -#define SBCS_RESULT_FROM_UTF8(table, results, l, t) (results)[ (table)[l] +(t) ] - -/* multi-byte fromUnicode: get the 32-bit stage 2 entry */ -#define MBCS_STAGE_2_FROM_U(table, c) ((const uint32_t *)(table))[ (table)[(c)>>10] +(((c)>>4)&0x3f) ] -#define MBCS_FROM_U_IS_ROUNDTRIP(stage2Entry, c) ( ((stage2Entry) & ((uint32_t)1<< (16+((c)&0xf)) )) !=0) - -#define MBCS_VALUE_2_FROM_STAGE_2(bytes, stage2Entry, c) ((uint16_t *)(bytes))[16*(uint32_t)(uint16_t)(stage2Entry)+((c)&0xf)] -#define MBCS_VALUE_4_FROM_STAGE_2(bytes, stage2Entry, c) ((uint32_t *)(bytes))[16*(uint32_t)(uint16_t)(stage2Entry)+((c)&0xf)] - -#define MBCS_POINTER_3_FROM_STAGE_2(bytes, stage2Entry, c) ((bytes)+(16*(uint32_t)(uint16_t)(stage2Entry)+((c)&0xf))*3) - -/* double-byte fromUnicode using the mbcsIndex */ -#define DBCS_RESULT_FROM_MOST_BMP(table, results, c) (results)[ (table)[(c)>>6] +((c)&0x3f) ] - -/* double-byte fromUTF8 using the mbcsIndex; l and t1 combined into lt1; lt1 and t2 must be masked externally */ -#define DBCS_RESULT_FROM_UTF8(table, results, lt1, t2) (results)[ (table)[lt1] +(t2) ] - - -/** - * MBCS output types for conversions from Unicode. - * These per-converter types determine the storage method in stage 3 of the lookup table, - * mostly how many bytes are stored per entry. - */ -enum { - MBCS_OUTPUT_1, /* 0 */ - MBCS_OUTPUT_2, /* 1 */ - MBCS_OUTPUT_3, /* 2 */ - MBCS_OUTPUT_4, /* 3 */ - - MBCS_OUTPUT_3_EUC=8, /* 8 */ - MBCS_OUTPUT_4_EUC, /* 9 */ - - MBCS_OUTPUT_2_SISO=12, /* c */ - MBCS_OUTPUT_2_HZ, /* d */ - - MBCS_OUTPUT_EXT_ONLY, /* e */ - - MBCS_OUTPUT_COUNT, - - MBCS_OUTPUT_DBCS_ONLY=0xdb /* runtime-only type for DBCS-only handling of SISO tables */ -}; - -/** - * Fallbacks to Unicode are stored outside the normal state table and code point structures - * in a vector of items of this type. They are sorted by offset. - */ -typedef struct { - uint32_t offset; - UChar32 codePoint; -} _MBCSToUFallback; - -/** Constants for fast and UTF-8-friendly conversion. */ -enum { - SBCS_FAST_MAX=0x0fff, /* maximum code point with UTF-8-friendly SBCS runtime code, see makeconv SBCS_UTF8_MAX */ - SBCS_FAST_LIMIT=SBCS_FAST_MAX+1, /* =0x1000 */ - MBCS_FAST_MAX=0xd7ff, /* maximum code point with UTF-8-friendly MBCS runtime code, see makeconv MBCS_UTF8_MAX */ - MBCS_FAST_LIMIT=MBCS_FAST_MAX+1 /* =0xd800 */ -}; - -/** - * This is the MBCS part of the UConverterTable union (a runtime data structure). - * It keeps all the per-converter data and points into the loaded mapping tables. - * - * utf8Friendly data structures added with _MBCSHeader.version 4.3 - */ -typedef struct UConverterMBCSTable { - /* toUnicode */ - uint8_t countStates, dbcsOnlyState, stateTableOwned; - uint32_t countToUFallbacks; - - const int32_t (*stateTable)/*[countStates]*/[256]; - int32_t (*swapLFNLStateTable)/*[countStates]*/[256]; /* for swaplfnl */ - const uint16_t *unicodeCodeUnits/*[countUnicodeResults]*/; - const _MBCSToUFallback *toUFallbacks; - - /* fromUnicode */ - const uint16_t *fromUnicodeTable; - const uint16_t *mbcsIndex; /* for fast conversion from most of BMP to MBCS (utf8Friendly data) */ - uint16_t sbcsIndex[SBCS_FAST_LIMIT>>6]; /* for fast conversion from low BMP to SBCS (utf8Friendly data) */ - const uint8_t *fromUnicodeBytes; - uint8_t *swapLFNLFromUnicodeBytes; /* for swaplfnl */ - uint32_t fromUBytesLength; - uint8_t outputType, unicodeMask; - UBool utf8Friendly; /* for utf8Friendly data */ - UChar maxFastUChar; /* for utf8Friendly data */ - - /* roundtrips */ - uint32_t asciiRoundtrips; - - /* reconstituted data that was omitted from the .cnv file */ - uint8_t *reconstitutedData; - - /* converter name for swaplfnl */ - char *swapLFNLName; - - /* extension data */ - struct UConverterSharedData *baseSharedData; - const int32_t *extIndexes; -} UConverterMBCSTable; - -#define UCNV_MBCS_TABLE_INITIALIZER { \ - /* toUnicode */ \ - 0, 0, 0, \ - 0, \ - \ - NULL, \ - NULL, \ - NULL, \ - NULL, \ - \ - /* fromUnicode */ \ - NULL, \ - NULL, \ - { 0 }, \ - NULL, \ - NULL, \ - 0, \ - 0, 0, \ - FALSE, \ - 0, \ - \ - /* roundtrips */ \ - 0, \ - \ - /* reconstituted data that was omitted from the .cnv file */ \ - NULL, \ - \ - /* converter name for swaplfnl */ \ - NULL, \ - \ - /* extension data */ \ - NULL, \ - NULL \ -} - -enum { - MBCS_OPT_LENGTH_MASK=0x3f, - MBCS_OPT_NO_FROM_U=0x40, - /* - * If any of the following options bits are set, - * then the file must be rejected. - */ - MBCS_OPT_INCOMPATIBLE_MASK=0xffc0, - /* - * Remove bits from this mask as more options are recognized - * by all implementations that use this constant. - */ - MBCS_OPT_UNKNOWN_INCOMPATIBLE_MASK=0xff80 -}; - -enum { - MBCS_HEADER_V4_LENGTH=8, - MBCS_HEADER_V5_MIN_LENGTH=9 -}; - -/** - * MBCS data header. See data format description above. - */ -typedef struct { - UVersionInfo version; - uint32_t countStates, - countToUFallbacks, - offsetToUCodeUnits, - offsetFromUTable, - offsetFromUBytes, - flags, - fromUBytesLength; - - /* new and required in version 5 */ - uint32_t options; - - /* new and optional in version 5; used if options&MBCS_OPT_NO_FROM_U */ - uint32_t fullStage2Length; /* number of 32-bit units */ -} _MBCSHeader; - -#define UCNV_MBCS_HEADER_INITIALIZER { { 0 }, 0, 0, 0, 0, 0, 0, 0, 0, 0 } - -/* - * This is a simple version of _MBCSGetNextUChar() that is used - * by other converter implementations. - * It only returns an "assigned" result if it consumes the entire input. - * It does not use state from the converter, nor error codes. - * It does not handle the EBCDIC swaplfnl option (set in UConverter). - * It handles conversion extensions but not GB 18030. - * - * Return value: - * U+fffe unassigned - * U+ffff illegal - * otherwise the Unicode code point - */ -U_CFUNC UChar32 -ucnv_MBCSSimpleGetNextUChar(UConverterSharedData *sharedData, - const char *source, int32_t length, - UBool useFallback); - -/** - * This version of _MBCSSimpleGetNextUChar() is optimized for single-byte, single-state codepages. - * It does not handle the EBCDIC swaplfnl option (set in UConverter). - * It does not handle conversion extensions (_extToU()). - */ -U_CFUNC UChar32 -ucnv_MBCSSingleSimpleGetNextUChar(UConverterSharedData *sharedData, - uint8_t b, UBool useFallback); - -/** - * This macro version of _MBCSSingleSimpleGetNextUChar() gets a code point from a byte. - * It works for single-byte, single-state codepages that only map - * to and from BMP code points, and it always - * returns fallback values. - */ -#define _MBCS_SINGLE_SIMPLE_GET_NEXT_BMP(sharedData, b) \ - (UChar)MBCS_ENTRY_FINAL_VALUE_16((sharedData)->mbcs.stateTable[0][(uint8_t)(b)]) - -/** - * This is an internal function that allows other converter implementations - * to check whether a byte is a lead byte. - */ -U_CFUNC UBool -ucnv_MBCSIsLeadByte(UConverterSharedData *sharedData, char byte); - -/** This is a macro version of _MBCSIsLeadByte(). */ -#define _MBCS_IS_LEAD_BYTE(sharedData, byte) \ - (UBool)MBCS_ENTRY_IS_TRANSITION((sharedData)->mbcs.stateTable[0][(uint8_t)(byte)]) - -/* - * This is another simple conversion function for internal use by other - * conversion implementations. - * It does not use the converter state nor call callbacks. - * It does not handle the EBCDIC swaplfnl option (set in UConverter). - * It handles conversion extensions but not GB 18030. - * - * It converts one single Unicode code point into codepage bytes, encoded - * as one 32-bit value. The function returns the number of bytes in *pValue: - * 1..4 the number of bytes in *pValue - * 0 unassigned (*pValue undefined) - * -1 illegal (currently not used, *pValue undefined) - * - * *pValue will contain the resulting bytes with the last byte in bits 7..0, - * the second to last byte in bits 15..8, etc. - * Currently, the function assumes but does not check that 0<=c<=0x10ffff. - */ -U_CFUNC int32_t -ucnv_MBCSFromUChar32(UConverterSharedData *sharedData, - UChar32 c, uint32_t *pValue, - UBool useFallback); - -/** - * This version of _MBCSFromUChar32() is optimized for single-byte codepages. - * It does not handle the EBCDIC swaplfnl option (set in UConverter). - * - * It returns the codepage byte for the code point, or -1 if it is unassigned. - */ -U_CFUNC int32_t -ucnv_MBCSSingleFromUChar32(UConverterSharedData *sharedData, - UChar32 c, - UBool useFallback); - -/** - * SBCS, DBCS, and EBCDIC_STATEFUL are replaced by MBCS, but - * we cheat a little about the type, returning the old types if appropriate. - */ -U_CFUNC UConverterType -ucnv_MBCSGetType(const UConverter* converter); - -U_CFUNC void -ucnv_MBCSFromUnicodeWithOffsets(UConverterFromUnicodeArgs *pArgs, - UErrorCode *pErrorCode); -U_CFUNC void -ucnv_MBCSToUnicodeWithOffsets(UConverterToUnicodeArgs *pArgs, - UErrorCode *pErrorCode); - -/* - * Internal function returning a UnicodeSet for toUnicode() conversion. - * Currently only used for ISO-2022-CN, and only handles roundtrip mappings. - * In the future, if we add support for fallback sets, this function - * needs to be updated. - * Handles extensions. - * Does not empty the set first. - */ -U_CFUNC void -ucnv_MBCSGetUnicodeSetForUnicode(const UConverterSharedData *sharedData, - const USetAdder *sa, - UConverterUnicodeSet which, - UErrorCode *pErrorCode); - -/* - * Same as ucnv_MBCSGetUnicodeSetForUnicode() but - * the set can be filtered by encoding scheme. - * Used by stateful converters which share regular conversion tables - * but only use a subset of their mappings. - */ -U_CFUNC void -ucnv_MBCSGetFilteredUnicodeSetForUnicode(const UConverterSharedData *sharedData, - const USetAdder *sa, - UConverterUnicodeSet which, - UConverterSetFilter filter, - UErrorCode *pErrorCode); - -#endif - -#endif |