3143 lines
128 KiB
C
3143 lines
128 KiB
C
/*
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**********************************************************************
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* Copyright (C) 2000, International Business Machines
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* Corporation and others. All Rights Reserved.
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**********************************************************************
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* file name: ucnv2022.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: 2000feb03
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* created by: Markus W. Scherer
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*
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* Change history:
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*
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* 06/29/2000 helena Major rewrite of the callback APIs.
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* 08/08/2000 Ram Included support for ISO-2022-JP-2
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* Changed implementation of toUnicode
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* function
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* 08/21/2000 Ram Added support for ISO-2022-KR
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* 08/29/2000 Ram Seperated implementation of EBCDIC to
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* ucnvebdc.c
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* 09/20/2000 Ram Added support for ISO-2022-CN
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* Added implementations for getNextUChar()
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* for specific 2022 country variants.
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* 10/31/2000 Ram Implemented offsets logic functions
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*/
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#include "unicode/utypes.h"
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#include "cmemory.h"
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#include "unicode/ucnv_err.h"
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#include "ucnv_bld.h"
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#include "unicode/ucnv.h"
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#include "ucnv_cnv.h"
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#include "unicode/ustring.h"
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#include "unicode/ucnv_cb.h"
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#include "cstring.h"
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#define CONCAT_ESCAPE_EX(args, target, targetLimit,offsets,strToAppend,len, err){\
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while(len-->0){\
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if(target < targetLimit){\
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*(target++) = (unsigned char) *(strToAppend++);\
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if(offsets){\
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*(offsets++) = source - args->source -1;\
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}\
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}\
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else{\
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args->converter->charErrorBuffer[(int)args->converter->charErrorBufferLength++] = (unsigned char) *(strToAppend++);\
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*err =U_BUFFER_OVERFLOW_ERROR;\
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}\
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}\
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}
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#define UCNV_SS2 "\x1B\x4E"
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#define UCNV_SS3 "\x1B\x4F"
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#define UCNV_SS2_LEN (sizeof(UCNV_SS2) - 1)
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#define UCNV_SS3_LEN (sizeof(UCNV_SS3) - 1)
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#define CR 0x0D
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#define LF 0x0A
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#define H_TAB 0x09
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#define V_TAB 0x0B
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#define SPACE 0x20
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/* for ISO-2022JP implementation*/
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typedef enum {
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ASCII = 0,
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ISO8859_1 = 1 ,
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ISO8859_7 = 2 ,
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JISX201 = 3,
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JISX208 = 4,
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JISX212 = 5,
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GB2312 =6,
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KSC5601 =7,
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INVALID_STATE
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} StateEnum;
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typedef enum {
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ASCII1=0,
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LATIN1,
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SBCS,
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DBCS,
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MBCS
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}Cnv2022Type;
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#define UCNV_OPTIONS_VERSION_MASK 0xf
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typedef struct{
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UConverter *currentConverter;
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UConverter *fromUnicodeConverter;
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UBool isFirstBuffer;
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StateEnum toUnicodeCurrentState;
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StateEnum fromUnicodeCurrentState;
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StateEnum initIterState;
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Cnv2022Type currentType;
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int plane;
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uint8_t escSeq2022[10];
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UConverter* myConverterArray[9];
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UBool isEscapeAppended;
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UBool isShiftAppended;
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UBool isLocaleSpecified;
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uint32_t key;
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uint32_t version;
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char locale[3];
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char name[30];
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}UConverterDataISO2022;
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/* ISO-2022 ----------------------------------------------------------------- */
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/*Forward declaration */
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U_CFUNC void T_UConverter_fromUnicode_UTF8 (UConverterFromUnicodeArgs * args,
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UErrorCode * err);
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U_CFUNC void T_UConverter_fromUnicode_UTF8_OFFSETS_LOGIC (UConverterFromUnicodeArgs * args,
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UErrorCode * err);
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/* Protos */
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/***************** ISO-2022 ********************************/
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U_CFUNC void T_UConverter_toUnicode_ISO_2022(UConverterToUnicodeArgs * args,
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UErrorCode * err);
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U_CFUNC void T_UConverter_toUnicode_ISO_2022_OFFSETS_LOGIC (UConverterToUnicodeArgs * args,
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UErrorCode * err);
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U_CFUNC UChar32 T_UConverter_getNextUChar_ISO_2022 (UConverterToUnicodeArgs * args,
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UErrorCode * err);
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/***************** ISO-2022-JP ********************************/
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U_CFUNC void UConverter_fromUnicode_ISO_2022_JP_OFFSETS_LOGIC(UConverterFromUnicodeArgs* args,
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UErrorCode* err);
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U_CFUNC void UConverter_toUnicode_ISO_2022_JP_OFFSETS_LOGIC(UConverterToUnicodeArgs* args,
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UErrorCode* err);
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/***************** ISO-2022-KR ********************************/
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U_CFUNC void UConverter_fromUnicode_ISO_2022_KR_OFFSETS_LOGIC(UConverterFromUnicodeArgs* args,
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UErrorCode* err);
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U_CFUNC void UConverter_toUnicode_ISO_2022_KR_OFFSETS_LOGIC(UConverterToUnicodeArgs* args,
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UErrorCode* err);
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/***************** ISO-2022-CN ********************************/
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U_CFUNC void UConverter_fromUnicode_ISO_2022_CN_OFFSETS_LOGIC(UConverterFromUnicodeArgs* args,
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UErrorCode* err);
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U_CFUNC void UConverter_toUnicode_ISO_2022_CN_OFFSETS_LOGIC(UConverterToUnicodeArgs* args,
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UErrorCode* err);
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#define ESC_2022 0x1B /*ESC*/
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typedef enum
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{
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INVALID_2022 = -1, /*Doesn't correspond to a valid iso 2022 escape sequence*/
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VALID_NON_TERMINAL_2022 = 0, /*so far corresponds to a valid iso 2022 escape sequence*/
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VALID_TERMINAL_2022 = 1, /*corresponds to a valid iso 2022 escape sequence*/
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VALID_MAYBE_TERMINAL_2022 = 2, /*so far matches one iso 2022 escape sequence, but by adding more characters might match another escape sequence*/
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VALID_SS2_SEQUENCE=3,
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VALID_SS3_SEQUENCE=4
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} UCNV_TableStates_2022;
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/*
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* The way these state transition arrays work is:
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* ex : ESC$B is the sequence for JISX208
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* a) First Iteration: char is ESC
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* i) Get the value of ESC from normalize_esq_chars_2022[] with int value of ESC as index
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* int x = normalize_esq_chars_2022[27] which is equal to 1
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* ii) Search for this value in escSeqStateTable_Key_2022[]
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* value of x is stored at escSeqStateTable_Key_2022[0]
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* iii) Save this index as offset
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* iv) Get state of this sequence from escSeqStateTable_Value_2022[]
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* escSeqStateTable_Value_2022[offset], which is VALID_NON_TERMINAL_2022
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* b) Switch on this state and continue to next char
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* i) Get the value of $ from normalize_esq_chars_2022[] with int value of $ as index
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* which is normalize_esq_chars_2022[36] == 4
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* ii) x is currently 1(from above)
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* x<<=5 -- x is now 32
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* x+=normalize_esq_chars_2022[36]
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* now x is 36
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* iii) Search for this value in escSeqStateTable_Key_2022[]
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* value of x is stored at escSeqStateTable_Key_2022[2], so offset is 2
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* iv) Get state of this sequence from escSeqStateTable_Value_2022[]
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* escSeqStateTable_Value_2022[offset], which is VALID_NON_TERMINAL_2022
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* c) Switch on this state and continue to next char
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* i) Get the value of B from normalize_esq_chars_2022[] with int value of B as index
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* ii) x is currently 36 (from above)
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* x<<=5 -- x is now 1152
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* x+=normalize_esq_chars_2022[66]
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* now x is 1161
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* iii) Search for this value in escSeqStateTable_Key_2022[]
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* value of x is stored at escSeqStateTable_Key_2022[21], so offset is 21
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* iv) Get state of this sequence from escSeqStateTable_Value_2022[21]
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* escSeqStateTable_Value_2022[offset], which is VALID_TERMINAL_2022
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* v) Get the converter name form escSeqStateTable_Result_2022[21] which is JISX208
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*/
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/*Below are the 3 arrays depicting a state transition table*/
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int8_t normalize_esq_chars_2022[256] = {
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/* 0 1 2 3 4 5 6 7 8 9 */
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0 ,0 ,0 ,0 ,0 ,0 ,0 ,0 ,0 ,0
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,0 ,0 ,0 ,0 ,0 ,0 ,0 ,0 ,0 ,0
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,0 ,0 ,0 ,0 ,0 ,0 ,0 ,1 ,0 ,0
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,0 ,0 ,0 ,0 ,0 ,0 ,4 ,7 ,0 ,0
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,2 ,24 ,26 ,27 ,0 ,3 ,23 ,6 ,0 ,0
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,0 ,0 ,0 ,0 ,0 ,0 ,0 ,0 ,0 ,0
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,0 ,0 ,0 ,0 ,5 ,8 ,9 ,10 ,11 ,12
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,13 ,14 ,15 ,16 ,17 ,18 ,19 ,20 ,25 ,28
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,0 ,0 ,21 ,0 ,0 ,0 ,0 ,0 ,0 ,0
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,22 ,0 ,0 ,0 ,0 ,0 ,0 ,0 ,0 ,0
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,0 ,0 ,0 ,0 ,0 ,0 ,0 ,0 ,0 ,0
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,0 ,0 ,0 ,0 ,0 ,0 ,0 ,0 ,0 ,0
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,0 ,0 ,0 ,0 ,0 ,0 ,0 ,0 ,0 ,0
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,0 ,0 ,0 ,0 ,0 ,0 ,0 ,0 ,0 ,0
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,0 ,0 ,0 ,0 ,0 ,0 ,0 ,0 ,0 ,0
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,0 ,0 ,0 ,0 ,0 ,0 ,0 ,0 ,0 ,0
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,0 ,0 ,0 ,0 ,0 ,0 ,0 ,0 ,0 ,0
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,0 ,0 ,0 ,0 ,0 ,0 ,0 ,0 ,0 ,0
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,0 ,0 ,0 ,0 ,0 ,0 ,0 ,0 ,0 ,0
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,0 ,0 ,0 ,0 ,0 ,0 ,0 ,0 ,0 ,0
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,0 ,0 ,0 ,0 ,0 ,0 ,0 ,0 ,0 ,0
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,0 ,0 ,0 ,0 ,0 ,0 ,0 ,0 ,0 ,0
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,0 ,0 ,0 ,0 ,0 ,0 ,0 ,0 ,0 ,0
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,0 ,0 ,0 ,0 ,0 ,0 ,0 ,0 ,0 ,0
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,0 ,0 ,0 ,0 ,0 ,0 ,0 ,0 ,0 ,0
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,0 ,0 ,0 ,0 ,0 ,0
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};
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#define MAX_STATES_2022 74
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int32_t escSeqStateTable_Key_2022[MAX_STATES_2022] = {
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/* 0 1 2 3 4 5 6 7 8 9 */
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1 ,34 ,36 ,39 ,55 ,57 ,60 ,1093 ,1096 ,1097
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,1098 ,1099 ,1100 ,1101 ,1102 ,1103 ,1104 ,1105 ,1106 ,1109
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,1154 ,1157 ,1160 ,1161 ,1176 ,1178 ,1179 ,1254 ,1257 ,1768
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,1773 ,35105 ,36933 ,36936 ,36937 ,36938 ,36939 ,36940 ,36942 ,36943
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,36944 ,36945 ,36946 ,36947 ,36948 ,37640 ,37642 ,37644 ,37646 ,37711
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,37744 ,37745 ,37746 ,37747 ,37748 ,40133 ,40136 ,40138 ,40139 ,40140
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,40141 ,1123363 ,35947624 ,35947625 ,35947626 ,35947627 ,35947629 ,35947630 ,35947631 ,35947635
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,35947636 ,35947638
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};
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const char* escSeqStateTable_Result_2022[MAX_STATES_2022] = {
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/* 0 1 2 3 4 5 6 7 8 9 */
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NULL ,NULL ,NULL ,NULL ,NULL ,NULL ,NULL ,"latin1" ,"latin1" ,"latin1"
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,"ibm-865" ,"ibm-865" ,"ibm-865" ,"ibm-865" ,"ibm-865" ,"ibm-865" ,"JISX-201" ,"JISX-201" ,"latin1" ,"latin1"
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,NULL ,"JISX-208" ,"gb_2312_80-1" ,"JISX-208" ,NULL ,NULL ,NULL ,NULL ,"UTF8" ,"ISO-8859-1"
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,"ISO-8859-7" ,NULL ,"ibm-955" ,"ibm-367" ,"ibm-952" ,"ibm-949" ,"JISX-212" ,"ibm-1383" ,"ibm-952" ,"ibm-964"
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,"ibm-964" ,"ibm-964" ,"ibm-964" ,"ibm-964" ,"ibm-964" ,"gb_2312_80-1" ,"ibm-949" ,"ISO-IR-165" ,"CNS-11643-1992,1" ,"CNS-11643-1992,2"
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,"CNS-11643-1992,3" ,"CNS-11643-1992,4" ,"CNS-11643-1992,5" ,"CNS-11643-1992,6" ,"CNS-11643-1992,7" ,"UTF16_PlatformEndian" ,"UTF16_PlatformEndian" ,"UTF16_PlatformEndian" ,"UTF16_PlatformEndian" ,"UTF16_PlatformEndian"
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,"UTF16_PlatformEndian" ,NULL ,"latin1" ,"ibm-912" ,"ibm-913" ,"ibm-914" ,"ibm-813" ,"ibm-1089" ,"ibm-920" ,"ibm-915"
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,"ibm-915" ,"latin1"
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};
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UCNV_TableStates_2022 escSeqStateTable_Value_2022[MAX_STATES_2022] = {
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/* 0 1 2 3 4 5 6 7 8 9 */
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VALID_NON_TERMINAL_2022 ,VALID_NON_TERMINAL_2022 ,VALID_NON_TERMINAL_2022 ,VALID_NON_TERMINAL_2022 ,VALID_NON_TERMINAL_2022 ,VALID_SS2_SEQUENCE ,VALID_SS3_SEQUENCE ,VALID_TERMINAL_2022 ,VALID_TERMINAL_2022 ,VALID_MAYBE_TERMINAL_2022
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,VALID_TERMINAL_2022 ,VALID_TERMINAL_2022 ,VALID_TERMINAL_2022 ,VALID_TERMINAL_2022 ,VALID_TERMINAL_2022 ,VALID_TERMINAL_2022 ,VALID_TERMINAL_2022 ,VALID_TERMINAL_2022 ,VALID_TERMINAL_2022 ,VALID_TERMINAL_2022
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,VALID_NON_TERMINAL_2022 ,VALID_TERMINAL_2022 ,VALID_TERMINAL_2022 ,VALID_TERMINAL_2022 ,VALID_NON_TERMINAL_2022 ,VALID_NON_TERMINAL_2022 ,VALID_NON_TERMINAL_2022 ,VALID_NON_TERMINAL_2022 ,VALID_TERMINAL_2022 ,VALID_TERMINAL_2022
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,VALID_TERMINAL_2022 ,VALID_NON_TERMINAL_2022 ,VALID_TERMINAL_2022 ,VALID_TERMINAL_2022 ,VALID_TERMINAL_2022 ,VALID_TERMINAL_2022 ,VALID_TERMINAL_2022 ,VALID_TERMINAL_2022 ,VALID_TERMINAL_2022 ,VALID_TERMINAL_2022
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,VALID_TERMINAL_2022 ,VALID_TERMINAL_2022 ,VALID_TERMINAL_2022 ,VALID_TERMINAL_2022 ,VALID_TERMINAL_2022 ,VALID_TERMINAL_2022 ,VALID_TERMINAL_2022 ,VALID_TERMINAL_2022 ,VALID_TERMINAL_2022 ,VALID_TERMINAL_2022
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,VALID_TERMINAL_2022 ,VALID_TERMINAL_2022 ,VALID_TERMINAL_2022 ,VALID_TERMINAL_2022 ,VALID_TERMINAL_2022 ,VALID_TERMINAL_2022 ,VALID_TERMINAL_2022 ,VALID_TERMINAL_2022 ,VALID_TERMINAL_2022 ,VALID_TERMINAL_2022
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,VALID_TERMINAL_2022 ,VALID_NON_TERMINAL_2022 ,VALID_TERMINAL_2022 ,VALID_TERMINAL_2022 ,VALID_TERMINAL_2022 ,VALID_TERMINAL_2022 ,VALID_TERMINAL_2022 ,VALID_TERMINAL_2022 ,VALID_TERMINAL_2022 ,VALID_TERMINAL_2022
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,VALID_TERMINAL_2022 ,VALID_TERMINAL_2022
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};
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/*for 2022 looks ahead in the stream
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*to determine the longest possible convertible
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*data stream
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*/
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static const char* getEndOfBuffer_2022(const char** source,
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const char* sourceLimit,
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UBool flush);
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/* Type def for refactoring changeState_2022 code*/
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typedef enum{
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ISO_2022=0,
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ISO_2022_JP=1,
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ISO_2022_KR=2,
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ISO_2022_CN=3
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} Variant2022;
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/*runs through a state machine to determine the escape sequence - codepage correspondance
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*changes the pointer pointed to be _this->extraInfo
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*/
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static void changeState_2022(UConverter* _this,
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const char** source,
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const char* sourceLimit,
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UBool flush,Variant2022 var,int* plane,
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UErrorCode* err);
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UCNV_TableStates_2022 getKey_2022(char source,
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int32_t* key,
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int32_t* offset);
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/*********** ISO 2022 Converter Protos ***********/
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static void _ISO2022Open(UConverter *cnv, const char *name, const char *locale,uint32_t options, UErrorCode *errorCode);
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static void _ISO2022Close(UConverter *converter);
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static void _ISO2022Reset(UConverter *converter, UConverterResetChoice choice);
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static const char* _ISO2022getName(const UConverter* cnv);
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U_CFUNC void _ISO_2022_WriteSub(UConverterFromUnicodeArgs *args, int32_t offsetIndex, UErrorCode *err) ;
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U_CFUNC UConverter * _ISO_2022_SafeClone(const UConverter *cnv, void *stackBuffer, int32_t *pBufferSize, UErrorCode *status);
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/************ protos of functions for setting the initial state *********************/
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static void setInitialStateToUnicodeJPCN(UConverter* converter,UConverterDataISO2022 *myConverterData);
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static void setInitialStateFromUnicodeJPCN(UConverter* converter,UConverterDataISO2022 *myConverterData);
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static void setInitialStateToUnicodeKR(UConverter* converter,UConverterDataISO2022 *myConverterData);
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static void setInitialStateFromUnicodeKR(UConverter* converter,UConverterDataISO2022 *myConverterData);
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/*************** Converter implemenations ******************/
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static const UConverterImpl _ISO2022Impl={
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UCNV_ISO_2022,
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NULL,
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NULL,
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_ISO2022Open,
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_ISO2022Close,
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_ISO2022Reset,
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T_UConverter_toUnicode_ISO_2022,
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T_UConverter_toUnicode_ISO_2022_OFFSETS_LOGIC,
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T_UConverter_fromUnicode_UTF8,
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T_UConverter_fromUnicode_UTF8_OFFSETS_LOGIC,
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T_UConverter_getNextUChar_ISO_2022,
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NULL,
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_ISO2022getName,
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_ISO_2022_WriteSub,
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_ISO_2022_SafeClone
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};
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const UConverterStaticData _ISO2022StaticData={
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sizeof(UConverterStaticData),
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"ISO_2022",
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2022,
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UCNV_IBM,
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UCNV_ISO_2022,
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1,
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4,
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{ 0x1a, 0, 0, 0 },
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1,
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FALSE,
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FALSE,
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0,
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{ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 } /* reserved */
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};
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const UConverterSharedData _ISO2022Data={
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sizeof(UConverterSharedData),
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~((uint32_t) 0),
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NULL,
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NULL,
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&_ISO2022StaticData,
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FALSE,
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&_ISO2022Impl,
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0
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};
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/*************JP****************/
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static const UConverterImpl _ISO2022JPImpl={
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UCNV_ISO_2022,
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NULL,
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NULL,
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_ISO2022Open,
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_ISO2022Close,
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_ISO2022Reset,
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UConverter_toUnicode_ISO_2022_JP_OFFSETS_LOGIC,
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UConverter_toUnicode_ISO_2022_JP_OFFSETS_LOGIC,
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UConverter_fromUnicode_ISO_2022_JP_OFFSETS_LOGIC,
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UConverter_fromUnicode_ISO_2022_JP_OFFSETS_LOGIC,
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NULL,
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NULL,
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_ISO2022getName,
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_ISO_2022_WriteSub,
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_ISO_2022_SafeClone
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};
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const UConverterStaticData _ISO2022JPStaticData={
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sizeof(UConverterStaticData),
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"ISO_2022_JP",
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0,
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UCNV_IBM,
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UCNV_ISO_2022,
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1,
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6,
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{ 0x1a, 0, 0, 0 },
|
|
1,
|
|
FALSE,
|
|
FALSE,
|
|
0,
|
|
{ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 } /* reserved */
|
|
};
|
|
const UConverterSharedData _ISO2022JPData={
|
|
sizeof(UConverterSharedData),
|
|
~((uint32_t) 0),
|
|
NULL,
|
|
NULL,
|
|
&_ISO2022JPStaticData,
|
|
FALSE,
|
|
&_ISO2022JPImpl,
|
|
0
|
|
};
|
|
|
|
/************* KR ***************/
|
|
static const UConverterImpl _ISO2022KRImpl={
|
|
|
|
UCNV_ISO_2022,
|
|
|
|
NULL,
|
|
NULL,
|
|
|
|
_ISO2022Open,
|
|
_ISO2022Close,
|
|
_ISO2022Reset,
|
|
|
|
UConverter_toUnicode_ISO_2022_KR_OFFSETS_LOGIC,
|
|
UConverter_toUnicode_ISO_2022_KR_OFFSETS_LOGIC,
|
|
UConverter_fromUnicode_ISO_2022_KR_OFFSETS_LOGIC,
|
|
UConverter_fromUnicode_ISO_2022_KR_OFFSETS_LOGIC,
|
|
NULL,
|
|
|
|
NULL,
|
|
_ISO2022getName,
|
|
_ISO_2022_WriteSub,
|
|
_ISO_2022_SafeClone
|
|
};
|
|
const UConverterStaticData _ISO2022KRStaticData={
|
|
sizeof(UConverterStaticData),
|
|
"ISO_2022_KR",
|
|
0,
|
|
UCNV_IBM,
|
|
UCNV_ISO_2022,
|
|
1,
|
|
3,
|
|
{ 0x1a, 0, 0, 0 },
|
|
1,
|
|
FALSE,
|
|
FALSE,
|
|
0,
|
|
{ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 } /* reserved */
|
|
};
|
|
const UConverterSharedData _ISO2022KRData={
|
|
sizeof(UConverterSharedData),
|
|
~((uint32_t) 0),
|
|
NULL,
|
|
NULL,
|
|
&_ISO2022KRStaticData,
|
|
FALSE,
|
|
&_ISO2022KRImpl,
|
|
0
|
|
};
|
|
|
|
/*************** CN ***************/
|
|
static const UConverterImpl _ISO2022CNImpl={
|
|
|
|
UCNV_ISO_2022,
|
|
|
|
NULL,
|
|
NULL,
|
|
|
|
_ISO2022Open,
|
|
_ISO2022Close,
|
|
_ISO2022Reset,
|
|
|
|
UConverter_toUnicode_ISO_2022_CN_OFFSETS_LOGIC,
|
|
UConverter_toUnicode_ISO_2022_CN_OFFSETS_LOGIC,
|
|
UConverter_fromUnicode_ISO_2022_CN_OFFSETS_LOGIC,
|
|
UConverter_fromUnicode_ISO_2022_CN_OFFSETS_LOGIC,
|
|
NULL,
|
|
|
|
NULL,
|
|
_ISO2022getName,
|
|
_ISO_2022_WriteSub,
|
|
_ISO_2022_SafeClone
|
|
};
|
|
const UConverterStaticData _ISO2022CNStaticData={
|
|
sizeof(UConverterStaticData),
|
|
"ISO_2022_CN",
|
|
0,
|
|
UCNV_IBM,
|
|
UCNV_ISO_2022,
|
|
2,
|
|
8,
|
|
{ 0x1a, 0, 0, 0 },
|
|
1,
|
|
FALSE,
|
|
FALSE,
|
|
0,
|
|
{ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 } /* reserved */
|
|
};
|
|
const UConverterSharedData _ISO2022CNData={
|
|
sizeof(UConverterSharedData),
|
|
~((uint32_t) 0),
|
|
NULL,
|
|
NULL,
|
|
&_ISO2022CNStaticData,
|
|
FALSE,
|
|
&_ISO2022CNImpl,
|
|
0
|
|
};
|
|
|
|
|
|
/**********/
|
|
|
|
static void _ISO2022Open(UConverter *cnv, const char *name, const char *locale,uint32_t options, UErrorCode *errorCode){
|
|
|
|
char myLocale[6]={' ',' ',' ',' ',' ',' '};
|
|
|
|
cnv->extraInfo = uprv_malloc (sizeof (UConverterDataISO2022));
|
|
if(cnv->extraInfo != NULL) {
|
|
UConverterDataISO2022 *myConverterData=(UConverterDataISO2022 *) cnv->extraInfo;
|
|
myConverterData->currentConverter = NULL;
|
|
myConverterData->fromUnicodeConverter = NULL;
|
|
myConverterData->currentType= ASCII1;
|
|
myConverterData->plane = -1;
|
|
myConverterData->key =0;
|
|
cnv->fromUnicodeStatus =FALSE;
|
|
if(locale){
|
|
uprv_strcpy(myLocale,locale);
|
|
myConverterData->isLocaleSpecified = TRUE;
|
|
}
|
|
myConverterData->version= 0;
|
|
myConverterData->myConverterArray[0] =NULL;
|
|
if(myLocale[0]=='j' && (myLocale[1]=='a'|| myLocale[1]=='p') &&
|
|
(myLocale[2]=='_' || myLocale[2]=='\0')){
|
|
|
|
/* open the required converters and cache them */
|
|
myConverterData->myConverterArray[0]= ucnv_open("ASCII", errorCode );
|
|
myConverterData->myConverterArray[1]= ucnv_open("ISO8859_1", errorCode);
|
|
myConverterData->myConverterArray[2]= ucnv_open("ISO8859_7", errorCode);
|
|
myConverterData->myConverterArray[3]= ucnv_open("jisx-201", errorCode);
|
|
myConverterData->myConverterArray[4]= ucnv_open("jisx-208", errorCode);
|
|
myConverterData->myConverterArray[5]= ucnv_open("jisx-212", errorCode);
|
|
myConverterData->myConverterArray[6]= ucnv_open("gb_2312_80-1", errorCode);
|
|
myConverterData->myConverterArray[7]= ucnv_open("ksc_5601_1", errorCode);
|
|
myConverterData->myConverterArray[8]= NULL;
|
|
|
|
/* initialize the state variables */
|
|
setInitialStateToUnicodeJPCN(cnv, myConverterData);
|
|
setInitialStateFromUnicodeJPCN(cnv,myConverterData);
|
|
|
|
/* set the function pointers to appropriate funtions */
|
|
cnv->sharedData=(UConverterSharedData*)(&_ISO2022JPData);
|
|
uprv_strcpy(myConverterData->locale,"ja");
|
|
uprv_strcpy(myConverterData->name,"ISO_2022,locale=ja");
|
|
if(options){
|
|
switch (options & UCNV_OPTIONS_VERSION_MASK){
|
|
case 1:
|
|
myConverterData->version = 1;
|
|
uprv_strcpy(myConverterData->name,"ISO_2022,locale=ja,version=1");
|
|
break;
|
|
case 2:
|
|
myConverterData->version = 2;
|
|
uprv_strcpy(myConverterData->name,"ISO_2022,locale=ja,version=2");
|
|
break;
|
|
default:
|
|
myConverterData->version = 0;
|
|
}
|
|
}
|
|
}
|
|
else if(myLocale[0]=='k' && (myLocale[1]=='o'|| myLocale[1]=='r') &&
|
|
(myLocale[2]=='_' || myLocale[2]=='\0')){
|
|
|
|
/* initialize the state variables */
|
|
setInitialStateToUnicodeKR(cnv, myConverterData);
|
|
setInitialStateFromUnicodeKR(cnv,myConverterData);
|
|
|
|
myConverterData->currentConverter=myConverterData->fromUnicodeConverter = ucnv_open("ibm-949",errorCode);
|
|
|
|
/* set the function pointers to appropriate funtions */
|
|
cnv->sharedData=(UConverterSharedData*)&_ISO2022KRData;
|
|
cnv->mode=UCNV_SI;
|
|
uprv_strcpy(myConverterData->locale,"kr");
|
|
uprv_strcpy(myConverterData->name,"ISO_2022,locale=kr");
|
|
myConverterData->version=0;
|
|
|
|
}
|
|
else if(((myLocale[0]=='z' && myLocale[1]=='h') || (myLocale[0]=='c'&& myLocale[1]=='n'))&&
|
|
(myLocale[2]=='_' || myLocale[2]=='\0')){
|
|
|
|
/* open the required converters and cache them */
|
|
myConverterData->myConverterArray[0] = ucnv_open("ASCII",errorCode);
|
|
myConverterData->myConverterArray[1] = ucnv_open("gb_2312_80-1",errorCode);
|
|
myConverterData->myConverterArray[2] = ucnv_open("ISO-IR-165",errorCode);
|
|
myConverterData->myConverterArray[3] = ucnv_open("CNS-11643-1992",errorCode);
|
|
myConverterData->myConverterArray[4] = NULL;
|
|
|
|
|
|
/*initialize the state variables*/
|
|
setInitialStateToUnicodeJPCN(cnv, myConverterData);
|
|
setInitialStateFromUnicodeJPCN(cnv,myConverterData);
|
|
|
|
/* set the function pointers to appropriate funtions */
|
|
cnv->sharedData=(UConverterSharedData*)&_ISO2022CNData;
|
|
uprv_strcpy(myConverterData->locale,"cn");
|
|
uprv_strcpy(myConverterData->name,"ISO_2022,locale=cn");
|
|
|
|
if(options){
|
|
switch (options & UCNV_OPTIONS_VERSION_MASK){
|
|
case 1:
|
|
myConverterData->version = 1;
|
|
uprv_strcpy(myConverterData->name,"ISO_2022,locale=cn,version=1");
|
|
break;
|
|
default:
|
|
myConverterData->version = 0;
|
|
}
|
|
}
|
|
|
|
|
|
}
|
|
else{
|
|
/* append the UTF-8 escape sequence */
|
|
cnv->charErrorBufferLength = 3;
|
|
cnv->charErrorBuffer[0] = 0x1b;
|
|
cnv->charErrorBuffer[1] = 0x25;
|
|
cnv->charErrorBuffer[2] = 0x42;
|
|
|
|
cnv->sharedData=(UConverterSharedData*)&_ISO2022Data;
|
|
/* initialize the state variables */
|
|
myConverterData->isLocaleSpecified=FALSE;
|
|
uprv_strcpy(myConverterData->name,"ISO_2022");
|
|
}
|
|
|
|
} else {
|
|
*errorCode = U_MEMORY_ALLOCATION_ERROR;
|
|
}
|
|
|
|
}
|
|
|
|
|
|
static void
|
|
_ISO2022Close(UConverter *converter) {
|
|
UConverterDataISO2022* myData =(UConverterDataISO2022 *) (converter->extraInfo);
|
|
UConverter **array = myData->myConverterArray;
|
|
|
|
if (converter->extraInfo != NULL) {
|
|
|
|
/*close the array of converter pointers and free the memory*/
|
|
while(*array!=NULL){
|
|
if(*array==myData->currentConverter){
|
|
myData->currentConverter=NULL;
|
|
}
|
|
ucnv_close(*array++);
|
|
|
|
}
|
|
if(myData->currentConverter){
|
|
ucnv_close(myData->currentConverter);
|
|
}
|
|
uprv_free (converter->extraInfo);
|
|
}
|
|
}
|
|
|
|
static void
|
|
_ISO2022Reset(UConverter *converter, UConverterResetChoice choice) {
|
|
UConverterDataISO2022 *myConverterData=(UConverterDataISO2022 *) (converter->extraInfo);
|
|
if(! myConverterData->isLocaleSpecified){
|
|
if(choice<=UCNV_RESET_TO_UNICODE) {
|
|
if (converter->mode == UCNV_SO){
|
|
ucnv_close (myConverterData->currentConverter);
|
|
myConverterData->currentConverter=NULL;
|
|
}
|
|
}
|
|
if(choice!=UCNV_RESET_TO_UNICODE) {
|
|
/* re-append UTF-8 escape sequence */
|
|
converter->charErrorBufferLength = 3;
|
|
converter->charErrorBuffer[0] = 0x1b;
|
|
converter->charErrorBuffer[1] = 0x28;
|
|
converter->charErrorBuffer[2] = 0x42;
|
|
}
|
|
}
|
|
else {
|
|
/* reset the state variables */
|
|
if(myConverterData->locale[0] == 'j' || myConverterData->locale[0] == 'c'){
|
|
if(choice<=UCNV_RESET_TO_UNICODE) {
|
|
setInitialStateToUnicodeJPCN(converter, myConverterData);
|
|
}
|
|
if(choice!=UCNV_RESET_TO_UNICODE) {
|
|
setInitialStateFromUnicodeJPCN(converter,myConverterData);
|
|
}
|
|
}
|
|
else if(myConverterData->locale[0] == 'k'){
|
|
if(choice<=UCNV_RESET_TO_UNICODE) {
|
|
setInitialStateToUnicodeKR(converter, myConverterData);
|
|
}
|
|
if(choice!=UCNV_RESET_TO_UNICODE) {
|
|
setInitialStateFromUnicodeKR(converter, myConverterData);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
static const char* _ISO2022getName(const UConverter* cnv){
|
|
if(cnv->extraInfo){
|
|
UConverterDataISO2022* myData= (UConverterDataISO2022*)cnv->extraInfo;
|
|
return myData->name;
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
static void setInitialStateToUnicodeJPCN(UConverter* converter,UConverterDataISO2022 *myConverterData ){
|
|
myConverterData->toUnicodeCurrentState =ASCII;
|
|
myConverterData->currentConverter = NULL;
|
|
myConverterData->isFirstBuffer = TRUE;
|
|
converter->mode = UCNV_SI;
|
|
|
|
}
|
|
|
|
static void setInitialStateFromUnicodeJPCN(UConverter* converter,UConverterDataISO2022 *myConverterData){
|
|
myConverterData->fromUnicodeCurrentState= ASCII;
|
|
myConverterData->isEscapeAppended=FALSE;
|
|
myConverterData->isShiftAppended=FALSE;
|
|
myConverterData->isLocaleSpecified=TRUE;
|
|
myConverterData->currentType = ASCII1;
|
|
converter->fromUnicodeStatus = FALSE;
|
|
|
|
}
|
|
|
|
static void setInitialStateToUnicodeKR(UConverter* converter, UConverterDataISO2022 *myConverterData){
|
|
|
|
myConverterData->isLocaleSpecified=TRUE;
|
|
converter->mode = UCNV_SI;
|
|
myConverterData->currentConverter = myConverterData->fromUnicodeConverter;
|
|
|
|
}
|
|
|
|
static void setInitialStateFromUnicodeKR(UConverter* converter,UConverterDataISO2022 *myConverterData){
|
|
/* in ISO-2022-KR the desginator sequence appears only once
|
|
* in a file so we append it only once
|
|
*/
|
|
if( converter->charErrorBufferLength==0){
|
|
|
|
converter->charErrorBufferLength = 4;
|
|
converter->charErrorBuffer[0] = 0x1b;
|
|
converter->charErrorBuffer[1] = 0x24;
|
|
converter->charErrorBuffer[2] = 0x29;
|
|
converter->charErrorBuffer[3] = 0x43;
|
|
}
|
|
myConverterData->isLocaleSpecified=TRUE;
|
|
myConverterData->isShiftAppended=FALSE;
|
|
|
|
}
|
|
|
|
/**********************************************************************************
|
|
* ISO-2022 Converter
|
|
*
|
|
*
|
|
*/
|
|
|
|
U_CFUNC UChar32 T_UConverter_getNextUChar_ISO_2022(UConverterToUnicodeArgs* args,
|
|
UErrorCode* err){
|
|
const char* mySourceLimit;
|
|
int plane=0; /*dummy variable*/
|
|
UConverterDataISO2022* myData =((UConverterDataISO2022*)(args->converter->extraInfo));
|
|
/*Arguments Check*/
|
|
if (args->sourceLimit < args->source){
|
|
*err = U_ILLEGAL_ARGUMENT_ERROR;
|
|
return 0xffff;
|
|
}
|
|
|
|
do{
|
|
|
|
mySourceLimit = getEndOfBuffer_2022(&(args->source), args->sourceLimit, TRUE);
|
|
/*Find the end of the buffer e.g : Next Escape Seq | end of Buffer*/
|
|
if (args->converter->mode == UCNV_SO) /*Already doing some conversion*/{
|
|
|
|
return ucnv_getNextUChar(myData->currentConverter,
|
|
&(args->source),
|
|
mySourceLimit,
|
|
err);
|
|
}
|
|
/*-Done with buffer with entire buffer
|
|
*-Error while converting
|
|
*/
|
|
changeState_2022(args->converter,
|
|
&(args->source),
|
|
args->sourceLimit,
|
|
TRUE,
|
|
ISO_2022,
|
|
&plane,
|
|
err);
|
|
}while(args->source < args->sourceLimit);
|
|
|
|
return 0xffff;
|
|
}
|
|
|
|
U_CFUNC void T_UConverter_toUnicode_ISO_2022(UConverterToUnicodeArgs *args,
|
|
UErrorCode* err){
|
|
|
|
const char *mySourceLimit;
|
|
char const* sourceStart;
|
|
UConverter *saveThis;
|
|
int plane =0 ;/*dummy variable*/
|
|
UConverterDataISO2022* myData= ((UConverterDataISO2022*)(args->converter->extraInfo));
|
|
/*Arguments Check*/
|
|
if (U_FAILURE(*err))
|
|
return;
|
|
|
|
if ((args->converter == NULL) || (args->targetLimit < args->target) || (args->sourceLimit < args->source)){
|
|
*err = U_ILLEGAL_ARGUMENT_ERROR;
|
|
return;
|
|
}
|
|
|
|
do{
|
|
|
|
/*Find the end of the buffer e.g : Next Escape Seq | end of Buffer*/
|
|
mySourceLimit = getEndOfBuffer_2022(&(args->source), args->sourceLimit, args->flush);
|
|
|
|
if (args->converter->mode == UCNV_SO) /*Already doing some conversion*/{
|
|
|
|
saveThis = args->converter;
|
|
args->offsets = NULL;
|
|
args->converter = myData->currentConverter;
|
|
ucnv_toUnicode(args->converter,
|
|
&args->target,
|
|
args->targetLimit,
|
|
&args->source,
|
|
mySourceLimit,
|
|
args->offsets,
|
|
args->flush,
|
|
err);
|
|
args->converter = saveThis;
|
|
}
|
|
if((myData->isFirstBuffer) && (args->source[0]!=(char)ESC_2022)
|
|
&& (myData->currentConverter==NULL)){
|
|
|
|
|
|
saveThis = args->converter;
|
|
args->offsets = NULL;
|
|
myData->currentConverter = ucnv_open("ASCII",err);
|
|
|
|
if(U_FAILURE(*err)){
|
|
break;
|
|
}
|
|
|
|
args->converter = myData->currentConverter;
|
|
ucnv_toUnicode(args->converter,
|
|
&args->target,
|
|
args->targetLimit,
|
|
&args->source,
|
|
mySourceLimit,
|
|
args->offsets,
|
|
args->flush,
|
|
err);
|
|
args->converter = saveThis;
|
|
args->converter->mode = UCNV_SO;
|
|
myData->isFirstBuffer=FALSE;
|
|
|
|
}
|
|
|
|
/*-Done with buffer with entire buffer
|
|
-Error while converting
|
|
*/
|
|
|
|
if (U_FAILURE(*err) || (args->source == args->sourceLimit))
|
|
return;
|
|
|
|
sourceStart = args->source;
|
|
changeState_2022(args->converter,
|
|
&(args->source),
|
|
args->sourceLimit,
|
|
TRUE,
|
|
ISO_2022,
|
|
&plane,
|
|
err);
|
|
/* args->source = sourceStart; */
|
|
|
|
|
|
}while(args->source < args->sourceLimit);
|
|
|
|
myData->isFirstBuffer=FALSE;
|
|
|
|
return;
|
|
}
|
|
|
|
U_CFUNC void T_UConverter_toUnicode_ISO_2022_OFFSETS_LOGIC(UConverterToUnicodeArgs* args,
|
|
UErrorCode* err){
|
|
|
|
int32_t myOffset=0;
|
|
int32_t base = 0;
|
|
const char* mySourceLimit;
|
|
char const* sourceStart;
|
|
UConverter* saveThis;
|
|
int plane =0;/*dummy variable*/
|
|
UConverterDataISO2022* myData=((UConverterDataISO2022*)(args->converter->extraInfo));
|
|
/*Arguments Check*/
|
|
if (U_FAILURE(*err))
|
|
return;
|
|
if ((args->converter == NULL) || (args->targetLimit < args->target) || (args->sourceLimit < args->source)){
|
|
*err = U_ILLEGAL_ARGUMENT_ERROR;
|
|
return;
|
|
}
|
|
|
|
do{
|
|
mySourceLimit = getEndOfBuffer_2022(&(args->source), args->sourceLimit, args->flush);
|
|
/*Find the end of the buffer e.g : Next Escape Seq | end of Buffer*/
|
|
|
|
if (args->converter->mode == UCNV_SO) /*Already doing some conversion*/{
|
|
const UChar* myTargetStart = args->target;
|
|
|
|
saveThis = args->converter;
|
|
args->converter = myData->currentConverter;
|
|
ucnv_toUnicode(args->converter,
|
|
&(args->target),
|
|
args->targetLimit,
|
|
&(args->source),
|
|
mySourceLimit,
|
|
args->offsets,
|
|
args->flush,
|
|
err);
|
|
|
|
args->converter = saveThis;
|
|
{
|
|
int32_t lim = args->target - myTargetStart;
|
|
int32_t i = 0;
|
|
for (i=base; i < lim;i++){
|
|
args->offsets[i] += myOffset;
|
|
}
|
|
base += lim;
|
|
}
|
|
|
|
}
|
|
if(myData->isFirstBuffer && args->source[0]!=ESC_2022
|
|
&& (myData->currentConverter==NULL)){
|
|
|
|
const UChar* myTargetStart = args->target;
|
|
saveThis = args->converter;
|
|
args->offsets = NULL;
|
|
myData->currentConverter = ucnv_open("ASCII",err);
|
|
|
|
if(U_FAILURE(*err)){
|
|
break;
|
|
}
|
|
|
|
args->converter = myData->currentConverter;
|
|
ucnv_toUnicode(args->converter,
|
|
&args->target,
|
|
args->targetLimit,
|
|
&args->source,
|
|
mySourceLimit,
|
|
args->offsets,
|
|
args->flush,
|
|
err);
|
|
args->converter = saveThis;
|
|
args->converter->mode = UCNV_SO;
|
|
myData->isFirstBuffer=FALSE;
|
|
/* args->converter = saveThis;*/
|
|
{
|
|
int32_t lim = args->target - myTargetStart;
|
|
int32_t i = 0;
|
|
for (i=base; i < lim;i++){
|
|
args->offsets[i] += myOffset;
|
|
}
|
|
base += lim;
|
|
}
|
|
}
|
|
/*-Done with buffer with entire buffer
|
|
-Error while converting
|
|
*/
|
|
|
|
if (U_FAILURE(*err) || (args->source == args->sourceLimit))
|
|
return;
|
|
|
|
sourceStart = args->source;
|
|
changeState_2022(args->converter,
|
|
&(args->source),
|
|
args->sourceLimit,
|
|
TRUE,
|
|
ISO_2022,
|
|
&plane,
|
|
err);
|
|
myOffset += args->source - sourceStart;
|
|
|
|
}while(mySourceLimit != args->sourceLimit);
|
|
|
|
return;
|
|
}
|
|
UCNV_TableStates_2022 getKey_2022(char c,
|
|
int32_t* key,
|
|
int32_t* offset){
|
|
int32_t togo = *key;
|
|
int32_t low = 0;
|
|
int32_t hi = MAX_STATES_2022;
|
|
int32_t oldmid=0;
|
|
|
|
if (*key == 0){
|
|
togo = (int8_t)normalize_esq_chars_2022[(int)c];
|
|
}
|
|
else{
|
|
togo <<= 5;
|
|
togo += (int8_t)normalize_esq_chars_2022[(int)c];
|
|
}
|
|
|
|
while (hi != low) /*binary search*/{
|
|
|
|
register int32_t mid = (hi+low) >> 1; /*Finds median*/
|
|
|
|
if (mid == oldmid)
|
|
break;
|
|
|
|
if (escSeqStateTable_Key_2022[mid] > togo){
|
|
hi = mid;
|
|
}
|
|
else if (escSeqStateTable_Key_2022[mid] < togo){
|
|
low = mid;
|
|
}
|
|
else /*we found it*/{
|
|
*key = togo;
|
|
*offset = mid;
|
|
return escSeqStateTable_Value_2022[mid];
|
|
}
|
|
oldmid = mid;
|
|
|
|
}
|
|
|
|
*key = 0;
|
|
*offset = 0;
|
|
return INVALID_2022;
|
|
}
|
|
|
|
|
|
|
|
/*Checks the characters of the buffer against valid 2022 escape sequences
|
|
*if the match we return a pointer to the initial start of the sequence otherwise
|
|
*we return sourceLimit
|
|
*/
|
|
static const char* getEndOfBuffer_2022(const char** source,
|
|
const char* sourceLimit,
|
|
UBool flush){
|
|
|
|
const char* mySource = *source;
|
|
|
|
if (*source >= sourceLimit)
|
|
return sourceLimit;
|
|
|
|
do{
|
|
|
|
if (*mySource == ESC_2022){
|
|
int8_t i;
|
|
int32_t key = 0;
|
|
int32_t offset;
|
|
UCNV_TableStates_2022 value = VALID_NON_TERMINAL_2022;
|
|
|
|
/* Kludge: I could not
|
|
* figure out the reason for validating an escape sequence
|
|
* twice - once here and once in changeState_2022().
|
|
* is it possible to have an ESC character in a ISO2022
|
|
* byte stream which is valid in a code page? Is it legal?
|
|
*/
|
|
for (i=0;
|
|
(mySource+i < sourceLimit)&&(value == VALID_NON_TERMINAL_2022);
|
|
i++) {
|
|
value = getKey_2022(*(mySource+i), &key, &offset);
|
|
}
|
|
if (value > 0 || *mySource==ESC_2022)
|
|
return mySource;
|
|
|
|
if ((value == VALID_NON_TERMINAL_2022)&&(!flush) )
|
|
return sourceLimit;
|
|
}
|
|
else if(*mySource == (char)UCNV_SI || *mySource==(char)UCNV_SO){
|
|
return mySource;
|
|
|
|
}
|
|
|
|
}while (mySource++ < sourceLimit);
|
|
|
|
return sourceLimit;
|
|
}
|
|
|
|
|
|
/**************************************ISO-2022-JP*************************************************/
|
|
|
|
/************************************** IMPORTANT **************************************************
|
|
* The UConverter_fromUnicode_ISO2022_JP converter does not use ucnv_fromUnicode() functions for SBCS,DBCS and
|
|
* MBCS; instead, the values are obtained directly by calling _MBCSFromUChar32().
|
|
* The converter iterates over each Unicode codepoint
|
|
* to obtain the equivalent codepoints from the codepages supported. Since the source buffer is
|
|
* processed one char at a time it would make sense to reduce the extra processing a canned converter
|
|
* would do as far as possible.
|
|
*
|
|
* If the implementation of these macros or structure of sharedData struct change in the future, make
|
|
* sure that ISO-2022 is also changed.
|
|
***************************************************************************************************
|
|
*/
|
|
|
|
/***************************************************************************************************
|
|
* Rules for ISO-2022-jp encoding
|
|
* (i) Escape sequences must be fully contained within a line they should not
|
|
* span new lines or CRs
|
|
* (ii) If the last character on a line is represented by two bytes then an ASCII or
|
|
* JIS-Roman character escape sequence should follow before the line terminates
|
|
* (iii) If the first character on the line is represented by two bytes then a two
|
|
* byte character escape sequence should precede it
|
|
* (iv) If no escape sequence is encountered then the characters are ASCII
|
|
* (v) Latin(ISO-8859-1) and Greek(ISO-8859-7) characters must be designated to G2,
|
|
* and invoked with SS2 (ESC N).
|
|
* (vi) If there is any G0 designation in text, there must be a switch to
|
|
* ASCII or to JIS X 0201-Roman before a space character (but not
|
|
* necessarily before "ESC 4/14 2/0" or "ESC N ' '") or control
|
|
* characters such as tab or CRLF.
|
|
* (vi) Supported encodings:
|
|
* ASCII, JISX201, JISX208, JISX212, GB2312, KSC5601, ISO-8859-1,ISO-8859-7
|
|
*
|
|
* source : RFC-1554
|
|
*
|
|
* JISX201, JISX208,JISX212 : new .cnv data files created
|
|
* KSC5601 : alias to ibm-949 mapping table
|
|
* GB2312 : alias to ibm-1386 mapping table
|
|
* ISO-8859-1 : Algorithmic implemented as LATIN1 case
|
|
* ISO-8859-7 : alisas to ibm-9409 mapping table
|
|
*/
|
|
#define MAX_VALID_CP_JP 8
|
|
static Cnv2022Type myConverterType[MAX_VALID_CP_JP]={
|
|
ASCII1,
|
|
LATIN1,
|
|
SBCS,
|
|
SBCS,
|
|
DBCS,
|
|
DBCS,
|
|
DBCS,
|
|
DBCS,
|
|
|
|
};
|
|
|
|
static StateEnum nextStateArray[3][MAX_VALID_CP_JP]= {
|
|
{JISX201 ,INVALID_STATE,INVALID_STATE,JISX208,ASCII,INVALID_STATE,INVALID_STATE,INVALID_STATE},
|
|
{JISX201,INVALID_STATE,INVALID_STATE,JISX208,JISX212,ASCII,INVALID_STATE,INVALID_STATE},
|
|
{ISO8859_1,ISO8859_7,JISX201,JISX208,JISX212,GB2312,KSC5601,ASCII}
|
|
};
|
|
static const char* escSeqChars[MAX_VALID_CP_JP] ={
|
|
"\x1B\x28\x42", /* <ESC>(B ASCII */
|
|
"\x1B\x2E\x41", /* <ESC>.A ISO-8859-1 */
|
|
"\x1B\x2E\x46", /* <ESC>.F ISO-8859-7 */
|
|
"\x1B\x28\x4A", /* <ESC>(J JISX-201 */
|
|
"\x1B\x24\x42", /* <ESC>$B JISX-208 */
|
|
"\x1B\x24\x28\x44", /* <ESC>$(D JISX-212 */
|
|
"\x1B\x24\x41", /* <ESC>$A GB2312 */
|
|
"\x1B\x24\x28\x43", /* <ESC>$(C KSC5601 */
|
|
|
|
};
|
|
static const int32_t escSeqCharsLen[MAX_VALID_CP_JP] ={
|
|
sizeof(escSeqChars[0]) - 1,
|
|
sizeof(escSeqChars[1]) - 1,
|
|
sizeof(escSeqChars[2]) - 1,
|
|
sizeof(escSeqChars[3]) - 1,
|
|
sizeof(escSeqChars[4]) - 1,
|
|
sizeof(escSeqChars[5]),
|
|
sizeof(escSeqChars[6]) - 1,
|
|
sizeof(escSeqChars[7]),
|
|
};
|
|
|
|
|
|
/*
|
|
* The iteration over various code pages works this way:
|
|
* i) Get the currentState from myConverterData->currentState
|
|
* ii) Check if the character is mapped to a valid character in the currentState
|
|
* Yes -> a) set the initIterState to currentState
|
|
* b) remain in this state until an invalid character is found
|
|
* No -> a) go to the next code page and find the character
|
|
* iii) Before changing the state increment the current state check if the current state
|
|
* is equal to the intitIteration state
|
|
* Yes -> A character that cannot be represented in any of the supported encodings
|
|
* break and return a U_INVALID_CHARACTER error
|
|
* No -> Continue and find the character in next code page
|
|
*
|
|
*
|
|
* TODO: Implement a priority technique where the users are allowed to set the priority of code pages
|
|
*/
|
|
U_CFUNC void UConverter_fromUnicode_ISO_2022_JP_OFFSETS_LOGIC(UConverterFromUnicodeArgs* args, UErrorCode* err){
|
|
|
|
UConverterDataISO2022 *converterData = (UConverterDataISO2022*)args->converter->extraInfo;
|
|
unsigned char* target = (unsigned char*) args->target;
|
|
const unsigned char* targetLimit = (const unsigned char*) args->targetLimit;
|
|
UChar* source =(UChar*)args->source;
|
|
const UChar* sourceLimit = args->sourceLimit;
|
|
int32_t* offsets = args->offsets;
|
|
uint32_t targetUniChar = missingCharMarker;
|
|
UChar32 sourceChar =0x0000;
|
|
const char* escSeq = NULL;
|
|
int len =0; /*length of escSeq chars*/
|
|
UConverterCallbackReason reason;
|
|
|
|
|
|
/* state variables*/
|
|
StateEnum* currentState = &converterData->fromUnicodeCurrentState;
|
|
StateEnum* initIterState = &converterData->initIterState;
|
|
UConverter** currentConverter = &converterData->fromUnicodeConverter;
|
|
Cnv2022Type* currentType = &converterData->currentType;
|
|
UConverter** convArray = converterData->myConverterArray;
|
|
|
|
/* arguments check*/
|
|
if ((args->converter == NULL) || (targetLimit < target) || (sourceLimit < source)){
|
|
*err = U_ILLEGAL_ARGUMENT_ERROR;
|
|
return;
|
|
}
|
|
|
|
if(U_FAILURE(*err)){
|
|
return;
|
|
}
|
|
|
|
*initIterState = *currentState;
|
|
|
|
/* check if the last codepoint of previous buffer was a lead surrogate*/
|
|
if(args->converter->fromUSurrogateLead!=0 && target< targetLimit) {
|
|
goto getTrail;
|
|
}
|
|
|
|
|
|
while( source < sourceLimit){
|
|
|
|
*currentConverter = convArray[(*currentConverter==NULL) ? 0 : (int)*currentState];
|
|
|
|
targetUniChar = missingCharMarker;
|
|
|
|
if(target < targetLimit){
|
|
|
|
sourceChar = *(source++);
|
|
if(sourceChar > SPACE) {
|
|
|
|
do{
|
|
switch (*currentType){
|
|
/* most common case*/
|
|
case DBCS:
|
|
{
|
|
uint32_t value;
|
|
if(2 == _MBCSFromUChar32((*currentConverter)->sharedData,
|
|
sourceChar, &value, FALSE)) {
|
|
targetUniChar = (uint16_t)value;
|
|
}
|
|
}
|
|
break;
|
|
case ASCII1:
|
|
if(sourceChar < 0x7f){
|
|
targetUniChar = sourceChar;
|
|
}
|
|
|
|
break;
|
|
|
|
case SBCS:
|
|
targetUniChar = (uint16_t)_MBCSSingleFromUChar32((*currentConverter)->sharedData,
|
|
sourceChar, FALSE);
|
|
/*
|
|
* If mySourceChar is unassigned, then _MBCSSingleFromUChar32() returns -1
|
|
* which becomes the same as missingCharMarker with the cast to uint16_t.
|
|
*/
|
|
break;
|
|
|
|
case LATIN1:
|
|
if(sourceChar <= 0x00FF){
|
|
targetUniChar = sourceChar;
|
|
}
|
|
|
|
break;
|
|
|
|
default:
|
|
/*not expected */
|
|
break;
|
|
}
|
|
if(targetUniChar==missingCharMarker){
|
|
*currentState = nextStateArray[converterData->version][*currentState];
|
|
*currentConverter = convArray[(*currentConverter==NULL) ? 0 : (int)*currentState];
|
|
*currentType = (Cnv2022Type) myConverterType[*currentState];
|
|
}
|
|
|
|
}while(targetUniChar == missingCharMarker && *initIterState != *currentState);
|
|
|
|
}
|
|
else{
|
|
|
|
targetUniChar = sourceChar;
|
|
*currentState = ASCII;
|
|
*currentType = (Cnv2022Type) myConverterType[*currentState];
|
|
|
|
}
|
|
|
|
if(targetUniChar != missingCharMarker){
|
|
|
|
if( *currentState != *initIterState){
|
|
|
|
escSeq = escSeqChars[(int)*currentState];
|
|
len = escSeqCharsLen[(int)*currentState];
|
|
|
|
CONCAT_ESCAPE_EX(args, target, targetLimit, offsets, escSeq,len,err);
|
|
|
|
/* Append SSN for shifting to G2 */
|
|
if(*currentState==ISO8859_1 || *currentState==ISO8859_7){
|
|
escSeq = UCNV_SS2;
|
|
len = UCNV_SS2_LEN;
|
|
CONCAT_ESCAPE_EX(args, target, targetLimit,offsets, escSeq,len,err);
|
|
}
|
|
}
|
|
*initIterState = *currentState;
|
|
/* write the targetUniChar to target */
|
|
if(targetUniChar <= 0x00FF){
|
|
if( target <targetLimit){
|
|
*(target++) = (unsigned char) targetUniChar;
|
|
|
|
}else{
|
|
args->converter->charErrorBuffer[args->converter->charErrorBufferLength++] = (unsigned char) targetUniChar;
|
|
*err = U_BUFFER_OVERFLOW_ERROR;
|
|
}
|
|
}else{
|
|
if(target < targetLimit){
|
|
*(target++) =(unsigned char) (targetUniChar>>8);
|
|
if(target < targetLimit){
|
|
*(target++) =(unsigned char) (targetUniChar);
|
|
}else{
|
|
args->converter->charErrorBuffer[args->converter->charErrorBufferLength++] = (unsigned char) (targetUniChar);
|
|
*err = U_BUFFER_OVERFLOW_ERROR;
|
|
}
|
|
}else{
|
|
args->converter->charErrorBuffer[args->converter->charErrorBufferLength++] = (unsigned char) (targetUniChar>>8);
|
|
args->converter->charErrorBuffer[args->converter->charErrorBufferLength++] = (unsigned char) (targetUniChar);
|
|
*err = U_BUFFER_OVERFLOW_ERROR;
|
|
}
|
|
}
|
|
/* write the offsets */
|
|
if(offsets){
|
|
int i = source - args->source-1;
|
|
len = 2 - (targetUniChar < 0x00FF);
|
|
while(len-->0){
|
|
*(offsets++) = i;
|
|
}
|
|
}
|
|
|
|
}
|
|
else{
|
|
|
|
/* if we cannot find the character after checking all codepages
|
|
* then this is an error
|
|
*/
|
|
reason = UCNV_UNASSIGNED;
|
|
*err = U_INVALID_CHAR_FOUND;
|
|
|
|
/*check if the char is a First surrogate*/
|
|
if(UTF_IS_SURROGATE(sourceChar)) {
|
|
if(UTF_IS_SURROGATE_FIRST(sourceChar)) {
|
|
args->converter->fromUSurrogateLead=(UChar)sourceChar;
|
|
getTrail:
|
|
/*look ahead to find the trail surrogate*/
|
|
if(source < sourceLimit) {
|
|
/* test the following code unit */
|
|
UChar trail=(UChar) *source;
|
|
if(UTF_IS_SECOND_SURROGATE(trail)) {
|
|
source++;
|
|
sourceChar=UTF16_GET_PAIR_VALUE(args->converter->fromUSurrogateLead, trail);
|
|
args->converter->fromUSurrogateLead=0x00;
|
|
reason =UCNV_UNASSIGNED;
|
|
/* convert this surrogate code point */
|
|
/* exit this condition tree */
|
|
} else {
|
|
/* this is an unmatched lead code unit (1st surrogate) */
|
|
/* callback(illegal) */
|
|
reason=UCNV_ILLEGAL;
|
|
*err=U_ILLEGAL_CHAR_FOUND;
|
|
}
|
|
} else {
|
|
/* no more input */
|
|
*err = U_ZERO_ERROR;
|
|
break;
|
|
}
|
|
} else {
|
|
/* this is an unmatched trail code unit (2nd surrogate) */
|
|
/* callback(illegal) */
|
|
reason=UCNV_ILLEGAL;
|
|
*err=U_ILLEGAL_CHAR_FOUND;
|
|
}
|
|
}
|
|
{
|
|
/*variables for callback */
|
|
const UChar* saveSource =NULL;
|
|
char* saveTarget =NULL;
|
|
int32_t* saveOffsets =NULL;
|
|
int currentOffset =0;
|
|
int saveIndex =0;
|
|
if(sourceChar>0xffff){
|
|
args->converter->invalidUCharBuffer[args->converter->invalidUCharLength++] =(uint16_t)(((sourceChar)>>10)+0xd7c0);
|
|
args->converter->invalidUCharBuffer[args->converter->invalidUCharLength++] =(uint16_t)(((sourceChar)&0x3ff)|0xdc00);
|
|
}
|
|
else{
|
|
args->converter->invalidUCharBuffer[args->converter->invalidUCharLength++] =(UChar)sourceChar;
|
|
}
|
|
if(offsets)
|
|
currentOffset = *(offsets-1)+1;
|
|
|
|
saveSource = args->source;
|
|
saveTarget = args->target;
|
|
saveOffsets = args->offsets;
|
|
args->target = (char*)target;
|
|
args->source = source;
|
|
args->offsets = offsets;
|
|
|
|
/*copies current values for the ErrorFunctor to update */
|
|
/*Calls the ErrorFunctor */
|
|
args->converter->fromUCharErrorBehaviour ( args->converter->fromUContext,
|
|
args,
|
|
args->converter->invalidUCharBuffer,
|
|
args->converter->invalidUCharLength,
|
|
(UChar32) (sourceChar),
|
|
reason,
|
|
err);
|
|
|
|
saveIndex = args->target - (char*)target;
|
|
if(args->offsets){
|
|
args->offsets = saveOffsets;
|
|
while(saveIndex-->0){
|
|
*offsets = currentOffset;
|
|
offsets++;
|
|
}
|
|
}
|
|
target = (unsigned char*)args->target;
|
|
args->source=saveSource;
|
|
args->target=saveTarget;
|
|
args->offsets=saveOffsets;
|
|
*initIterState = *currentState;
|
|
args->converter->invalidUCharLength = 0;
|
|
args->converter->fromUSurrogateLead=0x00;
|
|
if (U_FAILURE (*err)){
|
|
break;
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
} /* end if(myTargetIndex<myTargetLength) */
|
|
else{
|
|
*err =U_BUFFER_OVERFLOW_ERROR;
|
|
break;
|
|
}
|
|
|
|
}/* end while(mySourceIndex<mySourceLength) */
|
|
|
|
|
|
/*If at the end of conversion we are still carrying state information
|
|
*flush is TRUE, we can deduce that the input stream is truncated
|
|
*/
|
|
if (args->converter->fromUSurrogateLead !=0 && (source == sourceLimit) && args->flush){
|
|
*err = U_TRUNCATED_CHAR_FOUND;
|
|
}
|
|
/* Reset the state of converter if we consumed
|
|
* the source and flush is true
|
|
*/
|
|
if( (source == sourceLimit) && args->flush){
|
|
setInitialStateFromUnicodeJPCN(args->converter,converterData);
|
|
}
|
|
|
|
/*save the state and return */
|
|
args->source = source;
|
|
args->target = (char*)target;
|
|
}
|
|
|
|
|
|
/*************** to unicode *******************/
|
|
|
|
/****************************************************************************
|
|
* Recognized escape sequences are
|
|
* <ESC>(B ASCII
|
|
* <ESC>.A ISO-8859-1
|
|
* <ESC>.F ISO-8859-7
|
|
* <ESC>(J JISX-201
|
|
* <ESC>(I JISX-201
|
|
* <ESC>$B JISX-208
|
|
* <ESC>$@ JISX-208
|
|
* <ESC>$(D JISX-212
|
|
* <ESC>$A GB2312
|
|
* <ESC>$(C KSC5601
|
|
*/
|
|
static StateEnum nextStateToUnicodeJP[3][MAX_STATES_2022]= {
|
|
|
|
{
|
|
/* 0 1 2 3 4 5 6 7 8 9 */
|
|
|
|
INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,ASCII1
|
|
,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,JISX201 ,JISX201 ,INVALID_STATE ,INVALID_STATE
|
|
,INVALID_STATE ,JISX208 ,INVALID_STATE ,JISX208 ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE
|
|
,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE
|
|
,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE
|
|
,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE
|
|
,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE
|
|
,INVALID_STATE ,INVALID_STATE
|
|
},
|
|
|
|
{
|
|
/* 0 1 2 3 4 5 6 7 8 9 */
|
|
|
|
INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,ASCII1
|
|
,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,JISX201 ,JISX201 ,INVALID_STATE ,INVALID_STATE
|
|
,INVALID_STATE ,JISX208 ,INVALID_STATE ,JISX208 ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE
|
|
,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,JISX212 ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE
|
|
,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE
|
|
,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE
|
|
,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE
|
|
,INVALID_STATE ,INVALID_STATE
|
|
},
|
|
|
|
{
|
|
/* 0 1 2 3 4 5 6 7 8 9 */
|
|
|
|
INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,ASCII1
|
|
,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,JISX201 ,JISX201 ,INVALID_STATE ,INVALID_STATE
|
|
,INVALID_STATE ,JISX208 ,GB2312 ,JISX208 ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,ISO8859_1
|
|
,ISO8859_7 ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,KSC5601 ,JISX212 ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE
|
|
,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE
|
|
,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE
|
|
,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE
|
|
,INVALID_STATE ,INVALID_STATE
|
|
}
|
|
};
|
|
|
|
U_CFUNC void UConverter_toUnicode_ISO_2022_JP_OFFSETS_LOGIC(UConverterToUnicodeArgs *args,
|
|
UErrorCode* err){
|
|
char tempBuf[2];
|
|
const char *mySource = ( char *) args->source;
|
|
UChar *myTarget = args->target;
|
|
const char *mySourceLimit = args->sourceLimit;
|
|
uint32_t targetUniChar = 0x0000;
|
|
uint32_t mySourceChar = 0x0000;
|
|
UConverterDataISO2022* myData=(UConverterDataISO2022*)(args->converter->extraInfo);
|
|
StateEnum* currentState = &myData->toUnicodeCurrentState;
|
|
uint32_t* toUnicodeStatus = &args->converter->toUnicodeStatus;
|
|
int plane = 0; /*dummy variable*/
|
|
|
|
/*Arguments Check*/
|
|
if (U_FAILURE(*err))
|
|
return;
|
|
|
|
if ((args->converter == NULL) || (myTarget < args->target) || (mySource < args->source)){
|
|
*err = U_ILLEGAL_ARGUMENT_ERROR;
|
|
return;
|
|
}
|
|
|
|
while(mySource< args->sourceLimit){
|
|
|
|
targetUniChar = missingCharMarker;
|
|
|
|
if(myTarget < args->targetLimit){
|
|
|
|
mySourceChar= (unsigned char) *mySource++;
|
|
|
|
/*consume the escape sequence*/
|
|
if(myData->key!=0 || mySourceChar== ESC_2022){
|
|
if(*toUnicodeStatus== 0x00){
|
|
mySource--;
|
|
changeState_2022(args->converter,&(mySource),
|
|
args->sourceLimit, args->flush,ISO_2022_JP,&plane, err);
|
|
/*Invalid or illegal escape sequence */
|
|
if(U_SUCCESS(*err)){
|
|
continue;
|
|
|
|
}
|
|
else{
|
|
args->target = myTarget;
|
|
args->source = mySource;
|
|
return;
|
|
}
|
|
}
|
|
else
|
|
goto SAVE_STATE;
|
|
|
|
}
|
|
else if(mySourceChar<=SPACE){
|
|
if(*toUnicodeStatus== 0x00){
|
|
*currentState = ASCII;
|
|
|
|
}
|
|
else
|
|
goto SAVE_STATE;
|
|
|
|
}
|
|
|
|
switch(myConverterType[*currentState]){
|
|
|
|
case ASCII1:
|
|
if(*toUnicodeStatus== 0x00 && mySourceChar < 0x7F){
|
|
targetUniChar = (UChar) mySourceChar;
|
|
}
|
|
break;
|
|
|
|
case SBCS:
|
|
if(*toUnicodeStatus== 0x00){
|
|
targetUniChar = _MBCS_SINGLE_SIMPLE_GET_NEXT_BMP(myData->currentConverter->sharedData, mySourceChar);
|
|
}
|
|
break;
|
|
|
|
case DBCS:
|
|
if(*toUnicodeStatus== 0x00){
|
|
*toUnicodeStatus= (UChar) mySourceChar;
|
|
continue;
|
|
}
|
|
else{
|
|
const char *pBuf;
|
|
|
|
tempBuf[0] = (char) args->converter->toUnicodeStatus;
|
|
tempBuf[1] = (char) mySourceChar;
|
|
mySourceChar+= (args->converter->toUnicodeStatus)<<8;
|
|
*toUnicodeStatus= 0;
|
|
pBuf = tempBuf;
|
|
targetUniChar = _MBCSSimpleGetNextUChar(myData->currentConverter->sharedData, &pBuf, tempBuf+2, FALSE);
|
|
}
|
|
break;
|
|
|
|
case LATIN1:
|
|
if(args->converter->fromUnicodeStatus == 0x00 && mySourceChar < 0x100){
|
|
targetUniChar = (UChar) mySourceChar;
|
|
|
|
}
|
|
break;
|
|
|
|
case INVALID_STATE:
|
|
*err = U_ILLEGAL_ESCAPE_SEQUENCE;
|
|
args->target = myTarget;
|
|
args->source = mySource;
|
|
return;
|
|
|
|
default:
|
|
/* For non-valid state MBCS and others */
|
|
break;
|
|
}
|
|
if(targetUniChar < 0xfffe){
|
|
if(args->offsets){
|
|
args->offsets[myTarget - args->target]= mySource - args->source - 2
|
|
+(myConverterType[*currentState] < SBCS);
|
|
|
|
}
|
|
*(myTarget++)=(UChar)targetUniChar;
|
|
targetUniChar=missingCharMarker;
|
|
}
|
|
else{
|
|
SAVE_STATE:
|
|
{
|
|
const char *saveSource = args->source;
|
|
UChar *saveTarget = args->target;
|
|
|
|
int32_t *saveOffsets = NULL;
|
|
|
|
UConverterCallbackReason reason;
|
|
int32_t currentOffset ;
|
|
int32_t saveIndex = myTarget - args->target;
|
|
if(myConverterType[*currentState] > SBCS){
|
|
|
|
currentOffset= mySource - args->source - 2;
|
|
args->converter->invalidCharBuffer[args->converter->invalidCharLength++] = tempBuf[0];
|
|
args->converter->invalidCharBuffer[args->converter->invalidCharLength++] = tempBuf[1];
|
|
}
|
|
else{
|
|
|
|
currentOffset= mySource - args->source -1;
|
|
args->converter->invalidCharBuffer[args->converter->invalidCharLength++] =(char) mySourceChar;
|
|
}
|
|
|
|
|
|
if(targetUniChar == 0xfffe){
|
|
reason = UCNV_UNASSIGNED;
|
|
*err = U_INVALID_CHAR_FOUND;
|
|
}
|
|
else{
|
|
reason = UCNV_ILLEGAL;
|
|
*err = U_ILLEGAL_CHAR_FOUND;
|
|
}
|
|
|
|
if(args->offsets){
|
|
saveOffsets=args->offsets;
|
|
args->offsets = args->offsets+(myTarget - args->target);
|
|
}
|
|
|
|
args->target =myTarget;
|
|
myTarget =saveTarget;
|
|
args->source = mySource;
|
|
|
|
args->converter->fromCharErrorBehaviour (
|
|
args->converter->toUContext,
|
|
args,
|
|
args->converter->invalidCharBuffer,
|
|
args->converter->invalidCharLength,
|
|
reason,
|
|
err);
|
|
|
|
if(args->offsets){
|
|
args->offsets = saveOffsets;
|
|
|
|
for (;saveIndex < (args->target - myTarget);saveIndex++) {
|
|
args->offsets[saveIndex] += currentOffset;
|
|
}
|
|
}
|
|
args->converter->invalidCharLength=0;
|
|
myTarget=args->target;
|
|
args->source = saveSource;
|
|
args->target = saveTarget;
|
|
/*args->offsets = saveOffsets;*/
|
|
if(U_FAILURE(*err))
|
|
break;
|
|
|
|
|
|
}
|
|
}
|
|
}
|
|
else{
|
|
*err =U_BUFFER_OVERFLOW_ERROR;
|
|
break;
|
|
}
|
|
}
|
|
if((args->flush==TRUE)
|
|
&& (mySource == mySourceLimit)
|
|
&& ( *toUnicodeStatus!=0x00)){
|
|
|
|
*err = U_TRUNCATED_CHAR_FOUND;
|
|
*toUnicodeStatus= 0x00;
|
|
|
|
}
|
|
/* Reset the state of converter if we consumed
|
|
* the source and flush is true
|
|
*/
|
|
if( (mySource == mySourceLimit) && args->flush){
|
|
setInitialStateToUnicodeJPCN(args->converter,myData);
|
|
}
|
|
|
|
args->target = myTarget;
|
|
args->source = mySource;
|
|
}
|
|
|
|
|
|
|
|
/***************************************************************
|
|
* Rules for ISO-2022-KR encoding
|
|
* i) The KSC5601 designator sequence should appear only once in a file,
|
|
* at the begining of a line before any KSC5601 characters. This usually
|
|
* means that it appears by itself on the first line of the file
|
|
* ii) There are only 2 shifting sequences SO to shift into double byte mode
|
|
* and SI to shift into single byte mode
|
|
*/
|
|
|
|
U_CFUNC void UConverter_fromUnicode_ISO_2022_KR_OFFSETS_LOGIC(UConverterFromUnicodeArgs* args, UErrorCode* err){
|
|
|
|
const UChar *mySource = args->source;
|
|
unsigned char *myTarget = (unsigned char *) args->target;
|
|
int32_t mySourceIndex = 0;
|
|
int32_t myTargetIndex = 0;
|
|
int32_t targetLength = args->targetLimit - args->target;
|
|
int32_t mySourceLength = args->sourceLimit - args->source;
|
|
int32_t* offsets = args->offsets;
|
|
uint32_t targetUniChar = 0x0000;
|
|
UChar32 mySourceChar = 0x0000;
|
|
UBool isTargetUCharDBCS = (UBool)args->converter->fromUnicodeStatus;
|
|
UBool oldIsTargetUCharDBCS = isTargetUCharDBCS;
|
|
UConverterDataISO2022 *myConverterData=(UConverterDataISO2022*)args->converter->extraInfo;
|
|
UConverterCallbackReason reason;
|
|
int32_t length =0;
|
|
|
|
|
|
/*Arguments Check*/
|
|
if (U_FAILURE(*err))
|
|
return;
|
|
|
|
if ((args->converter == NULL) || (args->targetLimit < args->target) || (args->sourceLimit < args->source)){
|
|
*err = U_ILLEGAL_ARGUMENT_ERROR;
|
|
return;
|
|
}
|
|
isTargetUCharDBCS = (UBool) args->converter->fromUnicodeStatus;
|
|
if(args->converter->fromUSurrogateLead!=0 && myTargetIndex <targetLength) {
|
|
goto getTrail;
|
|
}
|
|
/*writing the char to the output stream */
|
|
while (mySourceIndex < mySourceLength){
|
|
|
|
targetUniChar=missingCharMarker;
|
|
|
|
if (myTargetIndex < targetLength){
|
|
|
|
mySourceChar = (UChar) args->source[mySourceIndex++];
|
|
|
|
length= _MBCSFromUChar32(myConverterData->fromUnicodeConverter->sharedData,
|
|
mySourceChar,&targetUniChar,args->converter->useFallback);
|
|
|
|
/* only DBCS or SBCS characters are expected*/
|
|
/* DB haracters with high bit set to 1 are expected */
|
|
if(length > 2 || length==0 ||(((targetUniChar & 0x8080) != 0x8080)&& length==2)){
|
|
reason =UCNV_UNASSIGNED;
|
|
*err =U_INVALID_CHAR_FOUND;
|
|
}
|
|
if (targetUniChar != missingCharMarker){
|
|
|
|
oldIsTargetUCharDBCS = isTargetUCharDBCS;
|
|
|
|
isTargetUCharDBCS = (UBool)(targetUniChar>0x00FF);
|
|
|
|
/* append the shift sequence */
|
|
if (oldIsTargetUCharDBCS != isTargetUCharDBCS ){
|
|
|
|
if (isTargetUCharDBCS)
|
|
args->target[myTargetIndex++] = UCNV_SO;
|
|
else
|
|
args->target[myTargetIndex++] = UCNV_SI;
|
|
if(args->offsets)
|
|
*(offsets++)= mySourceIndex -1;
|
|
|
|
}
|
|
/* write the targetUniChar to target buffer*/
|
|
if(isTargetUCharDBCS){
|
|
if( myTargetIndex <targetLength){
|
|
args->target[myTargetIndex++] =(char) ((targetUniChar >> 8) -0x80);
|
|
if(myTargetIndex < targetLength){
|
|
args->target[myTargetIndex++] =(char) ((targetUniChar & 0x00FF) -0x80);
|
|
}else{
|
|
args->converter->charErrorBuffer[args->converter->charErrorBufferLength++] = (char) ((targetUniChar & 0x00FF) -0x80);
|
|
*err = U_BUFFER_OVERFLOW_ERROR;
|
|
}
|
|
}else{
|
|
args->converter->charErrorBuffer[args->converter->charErrorBufferLength++] =(char) ((targetUniChar >> 8) -0x80);
|
|
args->converter->charErrorBuffer[args->converter->charErrorBufferLength++] = (char) ((targetUniChar & 0x00FF) -0x80);
|
|
*err = U_BUFFER_OVERFLOW_ERROR;
|
|
}
|
|
|
|
}else{
|
|
if( myTargetIndex <targetLength){
|
|
args->target[myTargetIndex++] = (char) (targetUniChar );
|
|
|
|
}else{
|
|
args->converter->charErrorBuffer[args->converter->charErrorBufferLength++] = (char) targetUniChar;
|
|
*err = U_BUFFER_OVERFLOW_ERROR;
|
|
}
|
|
}
|
|
/* write the offsets */
|
|
if(offsets){
|
|
int i = mySourceIndex-1;
|
|
int len = 2 - (targetUniChar < 0x00FF);
|
|
while(len-->0){
|
|
*(offsets++) = i;
|
|
}
|
|
}
|
|
|
|
}
|
|
else{
|
|
/*check if the char is a First surrogate*/
|
|
if(UTF_IS_SURROGATE(mySourceChar)) {
|
|
if(UTF_IS_SURROGATE_FIRST(mySourceChar)) {
|
|
args->converter->fromUSurrogateLead=(UChar)mySourceChar;
|
|
getTrail:
|
|
/*look ahead to find the trail surrogate*/
|
|
if(mySourceIndex < mySourceLength) {
|
|
/* test the following code unit */
|
|
UChar trail=(UChar) args->source[mySourceIndex];
|
|
if(UTF_IS_SECOND_SURROGATE(trail)) {
|
|
++mySourceIndex;
|
|
mySourceChar=UTF16_GET_PAIR_VALUE(args->converter->fromUSurrogateLead, trail);
|
|
args->converter->fromUSurrogateLead=0x00;
|
|
/* convert this surrogate code point */
|
|
/* exit this condition tree */
|
|
} else {
|
|
/* this is an unmatched lead code unit (1st surrogate) */
|
|
/* callback(illegal) */
|
|
reason=UCNV_ILLEGAL;
|
|
*err=U_ILLEGAL_CHAR_FOUND;
|
|
}
|
|
} else {
|
|
/* no more input */
|
|
*err = U_ZERO_ERROR;
|
|
break;
|
|
}
|
|
} else {
|
|
/* this is an unmatched trail code unit (2nd surrogate) */
|
|
/* callback(illegal) */
|
|
reason=UCNV_ILLEGAL;
|
|
*err=U_ILLEGAL_CHAR_FOUND;
|
|
}
|
|
}
|
|
|
|
{
|
|
int32_t saveIndex=0;
|
|
int32_t currentOffset = (args->offsets) ? *(offsets-1)+1:0;
|
|
char * saveTarget = args->target;
|
|
const UChar* saveSource = args->source;
|
|
int32_t *saveOffsets = args->offsets;
|
|
|
|
if(mySourceChar>0xffff){
|
|
args->converter->invalidUCharBuffer[args->converter->invalidUCharLength++] =(uint16_t)(((mySourceChar)>>10)+0xd7c0);
|
|
args->converter->invalidUCharBuffer[args->converter->invalidUCharLength++] =(uint16_t)(((mySourceChar)&0x3ff)|0xdc00);
|
|
}
|
|
else{
|
|
args->converter->invalidUCharBuffer[args->converter->invalidUCharLength++] =(UChar)mySourceChar;
|
|
}
|
|
|
|
args->converter->fromUnicodeStatus = (int32_t)isTargetUCharDBCS;
|
|
args->target += myTargetIndex;
|
|
args->source += mySourceIndex;
|
|
args->offsets = args->offsets?offsets:0;
|
|
|
|
|
|
saveIndex = myTargetIndex;
|
|
/*copies current values for the ErrorFunctor to update */
|
|
/*Calls the ErrorFunctor */
|
|
args->converter->fromUCharErrorBehaviour ( args->converter->fromUContext,
|
|
args,
|
|
args->converter->invalidUCharBuffer,
|
|
args->converter->invalidUCharLength,
|
|
(UChar32) (mySourceChar),
|
|
reason,
|
|
err);
|
|
|
|
/*Update the local Indexes so that the conversion
|
|
*can restart at the right points
|
|
*/
|
|
myTargetIndex = args->target - (char*)myTarget;
|
|
mySourceIndex = args->source - mySource;
|
|
args->offsets = saveOffsets;
|
|
saveIndex = myTargetIndex - saveIndex;
|
|
if(args->offsets){
|
|
args->offsets = saveOffsets;
|
|
while(saveIndex-->0){
|
|
*offsets = currentOffset;
|
|
offsets++;
|
|
}
|
|
}
|
|
isTargetUCharDBCS=(UBool)args->converter->fromUnicodeStatus;
|
|
args->source = saveSource;
|
|
args->target = saveTarget;
|
|
args->offsets = saveOffsets;
|
|
args->converter->invalidUCharLength = 0;
|
|
args->converter->fromUSurrogateLead=0x00;
|
|
if (U_FAILURE (*err))
|
|
break;
|
|
|
|
}
|
|
}
|
|
|
|
}
|
|
else{
|
|
|
|
*err = U_BUFFER_OVERFLOW_ERROR;
|
|
break;
|
|
}
|
|
|
|
}
|
|
|
|
/*If at the end of conversion we are still carrying state information
|
|
*flush is TRUE, we can deduce that the input stream is truncated
|
|
*/
|
|
if (args->converter->fromUSurrogateLead !=0 && (mySourceIndex == mySourceLength) && args->flush){
|
|
|
|
*err = U_TRUNCATED_CHAR_FOUND;
|
|
args->converter->fromUSurrogateLead = 0x00;
|
|
|
|
}
|
|
/* Reset the state of converter if we consumed
|
|
* the source and flush is true
|
|
*/
|
|
if( (mySourceIndex == mySourceLength) && args->flush){
|
|
setInitialStateFromUnicodeKR(args->converter,myConverterData);
|
|
}
|
|
|
|
args->target += myTargetIndex;
|
|
args->source += mySourceIndex;
|
|
args->converter->fromUnicodeStatus = (int32_t)isTargetUCharDBCS;
|
|
|
|
}
|
|
|
|
/************************ To Unicode ***************************************/
|
|
|
|
|
|
U_CFUNC void UConverter_toUnicode_ISO_2022_KR_OFFSETS_LOGIC(UConverterToUnicodeArgs *args,
|
|
UErrorCode* err){
|
|
char tempBuf[3];
|
|
const char* pBuf;
|
|
const char *mySource = ( char *) args->source;
|
|
UChar *myTarget = args->target;
|
|
char *tempLimit = &tempBuf[2]+1;
|
|
const char *mySourceLimit = args->sourceLimit;
|
|
UChar32 targetUniChar = 0x0000;
|
|
UChar mySourceChar = 0x0000;
|
|
UConverterDataISO2022* myData=(UConverterDataISO2022*)(args->converter->extraInfo);
|
|
int plane =0; /*dummy variable */
|
|
|
|
/*Arguments Check*/
|
|
if (U_FAILURE(*err))
|
|
return;
|
|
|
|
if ((args->converter == NULL) || (args->targetLimit < args->target) || (args->sourceLimit < args->source)){
|
|
*err = U_ILLEGAL_ARGUMENT_ERROR;
|
|
return;
|
|
}
|
|
|
|
while(mySource< args->sourceLimit){
|
|
|
|
targetUniChar = missingCharMarker;
|
|
|
|
if(myTarget < args->targetLimit){
|
|
|
|
mySourceChar= (unsigned char) *mySource++;
|
|
|
|
switch(mySourceChar){
|
|
|
|
case UCNV_SI:
|
|
myData->currentType = SBCS;
|
|
/*consume the source */
|
|
continue;
|
|
case UCNV_SO:
|
|
myData->currentType =DBCS;
|
|
/*consume the source */
|
|
continue;
|
|
|
|
default:
|
|
/* If we are in the process of consuming an escape sequence
|
|
* we fall through execute the the statements of next switch
|
|
* tag else we break;
|
|
*/
|
|
if(myData->key==0){
|
|
break;
|
|
}
|
|
case ESC_2022:
|
|
{
|
|
/* Already doing some conversion and found escape Sequence*/
|
|
if(args->converter->mode == UCNV_SO){
|
|
*err = U_ILLEGAL_ESCAPE_SEQUENCE;
|
|
}
|
|
else{
|
|
mySource--;
|
|
changeState_2022(args->converter,&(mySource),
|
|
args->sourceLimit, args->flush,ISO_2022_KR,&plane, err);
|
|
}
|
|
if(U_FAILURE(*err)){
|
|
args->target = myTarget;
|
|
args->source = mySource;
|
|
return;
|
|
}
|
|
continue;
|
|
}
|
|
}
|
|
|
|
if(myData->currentType==DBCS){
|
|
if(args->converter->toUnicodeStatus == 0x00){
|
|
args->converter->toUnicodeStatus = (UChar) mySourceChar;
|
|
continue;
|
|
}
|
|
else{
|
|
tempBuf[0] = (char) (args->converter->toUnicodeStatus+0x80) ;
|
|
tempBuf[1] = (char) (mySourceChar+0x80);
|
|
mySourceChar= (UChar)(((args->converter->toUnicodeStatus+0x80) << 8) | ((mySourceChar & 0x00ff)+0x80));
|
|
args->converter->toUnicodeStatus =0x00;
|
|
pBuf = &tempBuf[0];
|
|
tempLimit = &tempBuf[2]+1;
|
|
targetUniChar = _MBCSSimpleGetNextUChar(myData->fromUnicodeConverter->sharedData,
|
|
&pBuf,tempLimit,args->converter->useFallback);
|
|
}
|
|
}
|
|
else{
|
|
if(args->converter->fromUnicodeStatus == 0x00){
|
|
tempBuf[0] = (char) mySourceChar;
|
|
pBuf = &tempBuf[0];
|
|
tempLimit = &tempBuf[1];
|
|
targetUniChar = _MBCSSimpleGetNextUChar(myData->currentConverter->sharedData,
|
|
&pBuf,tempLimit,args->converter->useFallback);
|
|
}
|
|
|
|
}
|
|
if(targetUniChar < 0xfffe){
|
|
if(args->offsets)
|
|
args->offsets[myTarget - args->target]= mySource - args->source - 1-(myData->currentType==DBCS);
|
|
*(myTarget++)=(UChar)targetUniChar;
|
|
}
|
|
else if(targetUniChar>=0xfffe){
|
|
|
|
const char *saveSource = args->source;
|
|
UChar *saveTarget = args->target;
|
|
int32_t *saveOffsets = args->offsets;
|
|
int32_t saveIndex = myTarget - args->target;
|
|
UConverterCallbackReason reason;
|
|
int32_t currentOffset ;
|
|
|
|
if(targetUniChar == 0xfffe){
|
|
reason = UCNV_UNASSIGNED;
|
|
*err = U_INVALID_CHAR_FOUND;
|
|
}
|
|
else{
|
|
reason = UCNV_ILLEGAL;
|
|
*err = U_ILLEGAL_CHAR_FOUND;
|
|
}
|
|
if(myData->currentType== DBCS){
|
|
|
|
args->converter->invalidCharBuffer[args->converter->invalidCharLength++] = (char)(tempBuf[0]-0x80);
|
|
args->converter->invalidCharBuffer[args->converter->invalidCharLength++] = (char)(tempBuf[1]-0x80);
|
|
currentOffset= mySource - args->source -2;
|
|
|
|
}
|
|
else{
|
|
args->converter->invalidCharBuffer[args->converter->invalidCharLength++] = (char)mySourceChar;
|
|
currentOffset= mySource - args->source -1;
|
|
}
|
|
args->offsets = args->offsets?args->offsets+(myTarget - args->target):0;
|
|
args->target = myTarget;
|
|
args->source = mySource;
|
|
myTarget = saveTarget;
|
|
|
|
args->converter->fromCharErrorBehaviour (
|
|
args->converter->toUContext,
|
|
args,
|
|
args->converter->invalidCharBuffer,
|
|
args->converter->invalidCharLength,
|
|
reason,
|
|
err);
|
|
|
|
if(args->offsets){
|
|
args->offsets = saveOffsets;
|
|
|
|
for (;saveIndex < (args->target - myTarget);saveIndex++) {
|
|
args->offsets[saveIndex] += currentOffset;
|
|
}
|
|
}
|
|
args->converter->invalidCharLength=0;
|
|
args->source = saveSource;
|
|
myTarget = args->target;
|
|
args->target = saveTarget;
|
|
args->offsets = saveOffsets;
|
|
if(U_FAILURE(*err))
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
else{
|
|
*err =U_BUFFER_OVERFLOW_ERROR;
|
|
break;
|
|
}
|
|
}
|
|
if((args->flush==TRUE)
|
|
&& (mySource == mySourceLimit)
|
|
&& ( args->converter->toUnicodeStatus !=0x00)){
|
|
|
|
*err = U_TRUNCATED_CHAR_FOUND;
|
|
args->converter->toUnicodeStatus = 0x00;
|
|
|
|
}
|
|
/* Reset the state of converter if we consumed
|
|
* the source and flush is true
|
|
*/
|
|
if( (mySource == mySourceLimit) && args->flush){
|
|
setInitialStateToUnicodeKR(args->converter,myData);
|
|
}
|
|
|
|
args->target = myTarget;
|
|
args->source = mySource;
|
|
}
|
|
|
|
/*************************** END ISO2022-KR *********************************/
|
|
|
|
|
|
|
|
/*************************** ISO-2022-CN *********************************
|
|
*
|
|
* Rules for ISO-2022-CN Encoding:
|
|
* i) The desinator sequence must appear once on a line before any instance
|
|
* of character set it designates.
|
|
* ii) If two lines contain characters from the same character set, both lines
|
|
* must include the designator sequence.
|
|
* iii) Once the designator sequence is know, a shifting sequnce has to be found
|
|
* to invoke the shifting
|
|
* iv) All lines start in ASCII and end in ASCII.
|
|
* v) Four shifting sequences are employed for this purpose:
|
|
*
|
|
* Sequcence ASCII Eq Charsets
|
|
* ---------- ------- ---------
|
|
* SS2 <ESC>N CNS-11643-1992 Planes 3-7
|
|
* SS3 <ESC>O CNS-11643-1992 Plane 2
|
|
* SI <SI>
|
|
* SO <SO> CNS-11643-1992 Plane 1, GB2312,ISO-IR-165
|
|
*
|
|
* vi)
|
|
* SOdesignator : ESC "$" ")" finalchar_for_SO
|
|
* SS2designator : ESC "$" "*" finalchar_for_SS2
|
|
* SS3designator : ESC "$" "+" finalchar_for_SS3
|
|
*
|
|
* ESC $ ) A Indicates the bytes following SO are Chinese
|
|
* characters as defined in GB 2312-80, until
|
|
* another SOdesignation appears
|
|
*
|
|
*
|
|
* ESC $ ) E Indicates the bytes following SO are as defined
|
|
* in ISO-IR-165 (for details, see section 2.1),
|
|
* until another SOdesignation appears
|
|
*
|
|
* ESC $ ) G Indicates the bytes following SO are as defined
|
|
* in CNS 11643-plane-1, until another
|
|
* SOdesignation appears
|
|
*
|
|
* ESC $ * H Indicates the two bytes immediately following
|
|
* SS2 is a Chinese character as defined in CNS
|
|
* 11643-plane-2, until another SS2designation
|
|
* appears
|
|
* (Meaning <ESC>N must preceed every 2 byte
|
|
* sequence.)
|
|
*
|
|
* ESC $ + I Indicates the immediate two bytes following SS3
|
|
* is a Chinese character as defined in CNS
|
|
* 11643-plane-3, until another SS3designation
|
|
* appears
|
|
* (Meaning <ESC>O must preceed every 2 byte
|
|
* sequence.)
|
|
*
|
|
* ESC $ + J Indicates the immediate two bytes following SS3
|
|
* is a Chinese character as defined in CNS
|
|
* 11643-plane-4, until another SS3designation
|
|
* appears
|
|
* (In English: <ESC>N must preceed every 2 byte
|
|
* sequence.)
|
|
*
|
|
* ESC $ + K Indicates the immediate two bytes following SS3
|
|
* is a Chinese character as defined in CNS
|
|
* 11643-plane-5, until another SS3designation
|
|
* appears
|
|
*
|
|
* ESC $ + L Indicates the immediate two bytes following SS3
|
|
* is a Chinese character as defined in CNS
|
|
* 11643-plane-6, until another SS3designation
|
|
* appears
|
|
*
|
|
* ESC $ + M Indicates the immediate two bytes following SS3
|
|
* is a Chinese character as defined in CNS
|
|
* 11643-plane-7, until another SS3designation
|
|
* appears
|
|
*
|
|
* As in ISO-2022-CN, each line starts in ASCII, and ends in ASCII, and
|
|
* has its own designation information before any Chinese characters
|
|
* appear
|
|
*
|
|
*/
|
|
|
|
|
|
/********************** ISO2022-CN Data **************************/
|
|
static const char* escSeqCharsCN[10] ={
|
|
"\x0F", /* ASCII */
|
|
"\x1B\x24\x29\x41", /* GB 2312-80 */
|
|
"\x1B\x24\x29\x45", /* ISO-IR-165 */
|
|
"\x1B\x24\x29\x47", /* CNS 11643-1992 Plane 1 */
|
|
"\x1B\x24\x2A\x48", /* CNS 11643-1992 Plane 2 */
|
|
"\x1B\x24\x2B\x49", /* CNS 11643-1992 Plane 3 */
|
|
"\x1B\x24\x2B\x4A", /* CNS 11643-1992 Plane 4 */
|
|
"\x1B\x24\x2B\x4B", /* CNS 11643-1992 Plane 5 */
|
|
"\x1B\x24\x2B\x4C", /* CNS 11643-1992 Plane 6 */
|
|
"\x1B\x24\x2B\x4D" /* CNS 11643-1992 Plane 7 */
|
|
};
|
|
|
|
static const char* shiftSeqCharsCN[10] ={
|
|
"",
|
|
(const char*) "\x0E",
|
|
(const char*) "\x0E",
|
|
(const char*) "\x0E",
|
|
UCNV_SS2,
|
|
UCNV_SS3,
|
|
UCNV_SS3,
|
|
UCNV_SS3,
|
|
UCNV_SS3,
|
|
UCNV_SS3
|
|
};
|
|
|
|
typedef enum {
|
|
ASCII_1=0,
|
|
GB2312_1=1,
|
|
ISO_IR_165=2,
|
|
CNS_11643=3
|
|
} StateEnumCN;
|
|
|
|
static Cnv2022Type myConverterTypeCN[4]={
|
|
ASCII1,
|
|
MBCS,
|
|
MBCS,
|
|
MBCS
|
|
};
|
|
|
|
/*
|
|
* TODO: CNS_11643 Mapping table need to be changed for compliance with Unicode 3.1
|
|
*
|
|
*/
|
|
|
|
U_CFUNC void UConverter_fromUnicode_ISO_2022_CN_OFFSETS_LOGIC(UConverterFromUnicodeArgs* args, UErrorCode* err){
|
|
|
|
UConverterDataISO2022 *converterData = (UConverterDataISO2022*)args->converter->extraInfo;
|
|
unsigned char* target = (unsigned char*) args->target;
|
|
const unsigned char* targetLimit = (const unsigned char*) args->targetLimit;
|
|
UChar* source =(UChar*)args->source;
|
|
const UChar* sourceLimit = args->sourceLimit;
|
|
int32_t* offsets = args->offsets;
|
|
uint32_t targetUniChar = missingCharMarker;
|
|
uint32_t sourceChar =0x0000;
|
|
const char* escSeq = NULL;
|
|
int len =0; /*length of escSeq chars*/
|
|
uint32_t targetValue=0;
|
|
uint8_t planeVal=0;
|
|
UConverterCallbackReason reason;
|
|
|
|
/* state variables*/
|
|
StateEnumCN* currentState = (StateEnumCN*)&converterData->fromUnicodeCurrentState;
|
|
StateEnumCN* initIterState = (StateEnumCN*)&converterData->initIterState;
|
|
UConverter** currentConverter = &converterData->fromUnicodeConverter;
|
|
UBool* isShiftAppended = &converterData->isShiftAppended;
|
|
UBool* isEscapeAppended = &converterData->isEscapeAppended;
|
|
int* plane = &converterData->plane;
|
|
int lPlane = 0;
|
|
|
|
/* arguments check*/
|
|
if ((args->converter == NULL) || (targetLimit < target) || (sourceLimit < source)){
|
|
*err = U_ILLEGAL_ARGUMENT_ERROR;
|
|
return;
|
|
}
|
|
|
|
if(U_FAILURE(*err)){
|
|
return;
|
|
}
|
|
|
|
*initIterState = *currentState;
|
|
|
|
/* check if the last codepoint of previous buffer was a lead surrogate*/
|
|
if(args->converter->fromUSurrogateLead!=0 && target< targetLimit) {
|
|
goto getTrail;
|
|
}
|
|
|
|
|
|
while( source < sourceLimit){
|
|
*currentConverter = (*currentConverter==NULL) ?
|
|
converterData->myConverterArray[0] :
|
|
converterData->myConverterArray[(int)*currentState];
|
|
|
|
targetUniChar =missingCharMarker;
|
|
lPlane =0;
|
|
|
|
if(target < targetLimit){
|
|
|
|
sourceChar = *source;
|
|
source++;
|
|
|
|
/*check if the char is a First surrogate*/
|
|
if(UTF_IS_SURROGATE(sourceChar)) {
|
|
if(UTF_IS_SURROGATE_FIRST(sourceChar)) {
|
|
args->converter->fromUSurrogateLead=(UChar)sourceChar;
|
|
getTrail:
|
|
/*look ahead to find the trail surrogate*/
|
|
if(source < sourceLimit) {
|
|
/* test the following code unit */
|
|
UChar trail=(UChar) *source;
|
|
if(UTF_IS_SECOND_SURROGATE(trail)) {
|
|
source++;
|
|
sourceChar=UTF16_GET_PAIR_VALUE(args->converter->fromUSurrogateLead, trail);
|
|
args->converter->fromUSurrogateLead=0x00;
|
|
/* convert this surrogate code point */
|
|
/* exit this condition tree */
|
|
} else {
|
|
/* this is an unmatched lead code unit (1st surrogate) */
|
|
/* callback(illegal) */
|
|
reason=UCNV_ILLEGAL;
|
|
*err=U_ILLEGAL_CHAR_FOUND;
|
|
goto callback;
|
|
}
|
|
} else {
|
|
/* no more input */
|
|
break;
|
|
}
|
|
} else {
|
|
/* this is an unmatched trail code unit (2nd surrogate) */
|
|
/* callback(illegal) */
|
|
reason=UCNV_ILLEGAL;
|
|
*err=U_ILLEGAL_CHAR_FOUND;
|
|
goto callback;
|
|
}
|
|
}
|
|
|
|
/* do the conversion */
|
|
if(sourceChar == CR || sourceChar == LF){
|
|
targetUniChar = sourceChar;
|
|
if(*currentState!= ASCII_1){
|
|
*currentState = ASCII_1;
|
|
*isEscapeAppended = FALSE;
|
|
}
|
|
|
|
}
|
|
else{
|
|
|
|
do{
|
|
if(myConverterTypeCN[*currentState] == MBCS){
|
|
len= _MBCSFromUChar32((*currentConverter)->sharedData,sourceChar,
|
|
&targetValue,args->converter->useFallback);
|
|
switch(len){
|
|
case 0:
|
|
targetUniChar = missingCharMarker;
|
|
break;
|
|
case 2:
|
|
if(( converterData->version) == 0 && *currentState ==ISO_IR_165){
|
|
targetUniChar = missingCharMarker;
|
|
}else{
|
|
targetUniChar = (UChar32) targetValue;
|
|
}
|
|
break;
|
|
case 3:
|
|
targetUniChar = (UChar32) targetValue;
|
|
planeVal = (uint8_t) ((targetValue)>>16);
|
|
if(planeVal >0x80 && planeVal<0x89){
|
|
lPlane = (int)(planeVal - 0x80);
|
|
targetUniChar -= (planeVal<<16);
|
|
}else {
|
|
lPlane =-1;
|
|
}
|
|
if(converterData->version == 0 && lPlane >2){
|
|
targetUniChar = missingCharMarker;
|
|
}
|
|
break;
|
|
default:
|
|
reason =UCNV_ILLEGAL;
|
|
*err =U_INVALID_CHAR_FOUND;
|
|
break;
|
|
}
|
|
}else{
|
|
if(sourceChar < 0x7f){
|
|
targetUniChar = sourceChar;
|
|
}
|
|
}
|
|
if(targetUniChar==missingCharMarker){
|
|
|
|
*currentState=(StateEnum)((*currentState<3)? *currentState+1:0);
|
|
|
|
*currentConverter = (*currentConverter == NULL) ?
|
|
converterData->myConverterArray[0] :
|
|
converterData->myConverterArray[(int)*currentState];
|
|
|
|
targetUniChar =missingCharMarker;
|
|
*isEscapeAppended = FALSE;
|
|
*isShiftAppended = FALSE;
|
|
|
|
}
|
|
}while(targetUniChar==missingCharMarker && *initIterState != *currentState);
|
|
|
|
}
|
|
|
|
if(targetUniChar != missingCharMarker){
|
|
|
|
args->converter->fromUnicodeStatus=(UBool) (*currentState > ASCII_1);
|
|
/* Append the escpace sequence */
|
|
if(!*isEscapeAppended ||(*plane != lPlane)){
|
|
|
|
escSeq = (*currentState==CNS_11643) ?
|
|
escSeqCharsCN[(int)*currentState+lPlane-1]:
|
|
escSeqCharsCN[(int)*currentState];
|
|
len =strlen(escSeq);
|
|
|
|
CONCAT_ESCAPE_EX(args, target, targetLimit, offsets, escSeq,len,err);
|
|
*plane=lPlane ;
|
|
*isEscapeAppended=TRUE;
|
|
|
|
}
|
|
|
|
/* Append Shift Sequences */
|
|
switch(*currentState){
|
|
case ASCII1:
|
|
break;
|
|
case GB2312_1:
|
|
/*falls through */
|
|
case ISO_IR_165:
|
|
if(!*isShiftAppended){
|
|
len =strlen(shiftSeqCharsCN[*currentState]);
|
|
escSeq = shiftSeqCharsCN[*currentState];
|
|
CONCAT_ESCAPE_EX(args, target, targetLimit, offsets, escSeq,len,err);
|
|
*isShiftAppended=TRUE;
|
|
}
|
|
break;
|
|
default:
|
|
len =strlen(shiftSeqCharsCN[*currentState+*plane]);
|
|
escSeq = shiftSeqCharsCN[*currentState+*plane];
|
|
CONCAT_ESCAPE_EX(args, target, targetLimit, offsets, escSeq,len,err);
|
|
break;
|
|
}
|
|
|
|
*initIterState = *currentState;
|
|
|
|
/* write the targetUniChar to target */
|
|
if(targetUniChar <= 0x00FF){
|
|
if( target <targetLimit){
|
|
*(target++) = (unsigned char) targetUniChar;
|
|
|
|
}else{
|
|
args->converter->charErrorBuffer[args->converter->charErrorBufferLength++] = (unsigned char) targetUniChar;
|
|
*err = U_BUFFER_OVERFLOW_ERROR;
|
|
}
|
|
}else{
|
|
if(target < targetLimit){
|
|
*(target++) =(unsigned char) (targetUniChar>>8);
|
|
if(target < targetLimit){
|
|
*(target++) =(unsigned char) (targetUniChar);
|
|
}else{
|
|
args->converter->charErrorBuffer[args->converter->charErrorBufferLength++] = (unsigned char) (targetUniChar);
|
|
*err = U_BUFFER_OVERFLOW_ERROR;
|
|
}
|
|
}else{
|
|
args->converter->charErrorBuffer[args->converter->charErrorBufferLength++] = (unsigned char) (targetUniChar>>8);
|
|
args->converter->charErrorBuffer[args->converter->charErrorBufferLength++] = (unsigned char) (targetUniChar);
|
|
*err = U_BUFFER_OVERFLOW_ERROR;
|
|
}
|
|
}
|
|
/* write the offsets */
|
|
if(offsets){
|
|
int i = source - args->source-1;
|
|
len = 2 - (targetUniChar < 0x00FF);
|
|
while(len-->0){
|
|
*(offsets++) = i;
|
|
}
|
|
}
|
|
|
|
}
|
|
else{
|
|
|
|
/* if we cannot find the character after checking all codepages
|
|
* then this is an error
|
|
*/
|
|
reason = UCNV_UNASSIGNED;
|
|
*err = U_INVALID_CHAR_FOUND;
|
|
callback:
|
|
{
|
|
/*variables for callback */
|
|
const UChar* saveSource =NULL;
|
|
char* saveTarget =NULL;
|
|
int32_t* saveOffsets =NULL;
|
|
int currentOffset =0;
|
|
int saveIndex =0;
|
|
|
|
if(sourceChar>0xffff){
|
|
args->converter->invalidUCharBuffer[args->converter->invalidUCharLength++] =(uint16_t)(((sourceChar)>>10)+0xd7c0);
|
|
args->converter->invalidUCharBuffer[args->converter->invalidUCharLength++] =(uint16_t)(((sourceChar)&0x3ff)|0xdc00);
|
|
}
|
|
else{
|
|
args->converter->invalidUCharBuffer[args->converter->invalidUCharLength++] =(UChar)sourceChar;
|
|
}
|
|
|
|
if(offsets)
|
|
currentOffset = *(offsets-1)+1;
|
|
|
|
saveSource = args->source;
|
|
saveTarget = args->target;
|
|
saveOffsets = args->offsets;
|
|
args->target = (char*)target;
|
|
args->source = source;
|
|
args->offsets = offsets;
|
|
|
|
*currentState= *initIterState = ASCII_1;
|
|
/*copies current values for the ErrorFunctor to update */
|
|
/*Calls the ErrorFunctor */
|
|
args->converter->fromUCharErrorBehaviour ( args->converter->fromUContext,
|
|
args,
|
|
args->converter->invalidUCharBuffer,
|
|
args->converter->invalidUCharLength,
|
|
(UChar32) (sourceChar),
|
|
reason,
|
|
err);
|
|
|
|
saveIndex = args->target - (char*)target;
|
|
if(args->offsets){
|
|
args->offsets = saveOffsets;
|
|
while(saveIndex-->0){
|
|
*offsets = currentOffset;
|
|
offsets++;
|
|
}
|
|
}
|
|
target = (unsigned char*)args->target;
|
|
args->source=saveSource;
|
|
args->target=saveTarget;
|
|
args->offsets=saveOffsets;
|
|
args->converter->invalidUCharLength = 0;
|
|
args->converter->fromUSurrogateLead=0x00;
|
|
*isEscapeAppended =FALSE;
|
|
if (U_FAILURE (*err)){
|
|
break;
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
} /* end if(myTargetIndex<myTargetLength) */
|
|
else{
|
|
*err =U_BUFFER_OVERFLOW_ERROR;
|
|
break;
|
|
}
|
|
|
|
}/* end while(mySourceIndex<mySourceLength) */
|
|
|
|
|
|
/*If at the end of conversion we are still carrying state information
|
|
*flush is TRUE, we can deduce that the input stream is truncated
|
|
*/
|
|
if (args->converter->fromUSurrogateLead !=0 && (source == sourceLimit) && args->flush){
|
|
|
|
*err = U_TRUNCATED_CHAR_FOUND;
|
|
|
|
}
|
|
/* Reset the state of converter if we consumed
|
|
* the source and flush is true
|
|
*/
|
|
if( (source == sourceLimit) && args->flush){
|
|
setInitialStateFromUnicodeJPCN(args->converter,converterData);
|
|
}
|
|
|
|
/*save the state and return */
|
|
args->source = source;
|
|
args->target = (char*)target;
|
|
}
|
|
|
|
/*************** to unicode *******************/
|
|
static StateEnum nextStateToUnicodeCN[2][MAX_STATES_2022]= {
|
|
|
|
{
|
|
/* 0 1 2 3 4 5 6 7 8 9 */
|
|
|
|
INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE
|
|
,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE
|
|
,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE
|
|
,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE
|
|
,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,GB2312_1 ,INVALID_STATE ,INVALID_STATE ,CNS_11643 ,CNS_11643
|
|
,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE
|
|
,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE
|
|
,INVALID_STATE ,INVALID_STATE
|
|
},
|
|
|
|
{
|
|
/* 0 1 2 3 4 5 6 7 8 9 */
|
|
INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE
|
|
,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE
|
|
,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE
|
|
,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE
|
|
,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,GB2312_1 ,INVALID_STATE ,ISO_IR_165 ,CNS_11643 ,CNS_11643
|
|
,CNS_11643 ,CNS_11643 ,CNS_11643 ,CNS_11643 , CNS_11643 ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE
|
|
,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE ,INVALID_STATE
|
|
,INVALID_STATE ,INVALID_STATE
|
|
|
|
}
|
|
};
|
|
|
|
static void changeState_2022(UConverter* _this,
|
|
const char** source,
|
|
const char* sourceLimit,
|
|
UBool flush,Variant2022 var,
|
|
int* plane,
|
|
UErrorCode* err){
|
|
UConverter* myUConverter;
|
|
UCNV_TableStates_2022 value;
|
|
UConverterDataISO2022* myData2022 = ((UConverterDataISO2022*)_this->extraInfo);
|
|
uint32_t key = myData2022->key;
|
|
const char* chosenConverterName = NULL;
|
|
int32_t offset;
|
|
|
|
/*In case we were in the process of consuming an escape sequence
|
|
we need to reprocess it */
|
|
|
|
do{
|
|
|
|
value = getKey_2022(**source,(int32_t *) &key, &offset);
|
|
switch (value){
|
|
case VALID_NON_TERMINAL_2022 :
|
|
break;
|
|
|
|
case VALID_TERMINAL_2022:
|
|
{
|
|
(*source)++;
|
|
chosenConverterName = escSeqStateTable_Result_2022[offset];
|
|
key = 0;
|
|
goto DONE;
|
|
};
|
|
break;
|
|
|
|
case INVALID_2022:
|
|
{
|
|
myData2022->key = 0;
|
|
*err = U_ILLEGAL_ESCAPE_SEQUENCE;
|
|
return;
|
|
}
|
|
case VALID_SS2_SEQUENCE:
|
|
/*falls through*/
|
|
|
|
case VALID_SS3_SEQUENCE:
|
|
{
|
|
(*source)++;
|
|
key = 0;
|
|
goto DONE;
|
|
}
|
|
|
|
case VALID_MAYBE_TERMINAL_2022:
|
|
{
|
|
const char* mySource = (*source+1);
|
|
int32_t myKey = key;
|
|
UCNV_TableStates_2022 myValue = value;
|
|
int32_t myOffset=0;
|
|
if(*mySource==ESC_2022){
|
|
while ((mySource < sourceLimit) &&
|
|
((myValue == VALID_MAYBE_TERMINAL_2022)||(myValue == VALID_NON_TERMINAL_2022))){
|
|
myValue = getKey_2022(*(mySource++), &myKey, &myOffset);
|
|
}
|
|
}
|
|
else{
|
|
(*source)++;
|
|
myValue=(UCNV_TableStates_2022) 1;
|
|
myOffset = 7;
|
|
}
|
|
|
|
switch (myValue){
|
|
case INVALID_2022:
|
|
{
|
|
/*Backs off*/
|
|
chosenConverterName = escSeqStateTable_Result_2022[offset];
|
|
value = VALID_TERMINAL_2022;
|
|
goto DONE;
|
|
};
|
|
break;
|
|
|
|
case VALID_TERMINAL_2022:
|
|
{
|
|
/*uses longer escape sequence*/
|
|
chosenConverterName = escSeqStateTable_Result_2022[myOffset];
|
|
key = 0;
|
|
value = VALID_TERMINAL_2022;
|
|
goto DONE;
|
|
};
|
|
break;
|
|
|
|
/* Not expected. Added to make the gcc happy */
|
|
case VALID_SS2_SEQUENCE:
|
|
/*falls through*/
|
|
/* Not expected. Added to make the gcc happy */
|
|
case VALID_SS3_SEQUENCE:
|
|
{
|
|
(*source)++;
|
|
key = 0;
|
|
goto DONE;
|
|
}
|
|
|
|
case VALID_NON_TERMINAL_2022:
|
|
/*falls through*/
|
|
case VALID_MAYBE_TERMINAL_2022:
|
|
{
|
|
if (flush){
|
|
/*Backs off*/
|
|
chosenConverterName = escSeqStateTable_Result_2022[offset];
|
|
value = VALID_TERMINAL_2022;
|
|
key = 0;
|
|
goto DONE;
|
|
}
|
|
else{
|
|
key = myKey;
|
|
value = VALID_NON_TERMINAL_2022;
|
|
}
|
|
};
|
|
break;
|
|
};
|
|
break;
|
|
};
|
|
break;
|
|
}
|
|
}while (++(*source) < sourceLimit);
|
|
|
|
DONE:
|
|
myData2022->key = key;
|
|
if(offset<55 && offset>47){
|
|
*plane = offset-47;
|
|
}
|
|
|
|
if ((value == VALID_NON_TERMINAL_2022) || (value == VALID_MAYBE_TERMINAL_2022)) {
|
|
return;
|
|
}
|
|
else if (value != INVALID_2022 ) {
|
|
if(value==3 || value==4 ){
|
|
_this->mode = UCNV_SI;
|
|
myUConverter =myData2022->currentConverter;
|
|
}
|
|
else{
|
|
switch(var){
|
|
case ISO_2022:
|
|
_this->mode = UCNV_SI;
|
|
ucnv_close(myData2022->currentConverter);
|
|
myData2022->currentConverter = myUConverter = ucnv_open(chosenConverterName, err);
|
|
break;
|
|
case ISO_2022_JP:
|
|
{
|
|
StateEnum tempState=nextStateToUnicodeJP[myData2022->version][offset];
|
|
_this->mode = UCNV_SI;
|
|
myData2022->currentConverter = myUConverter =
|
|
(tempState!=INVALID_STATE)? myData2022->myConverterArray[tempState]:NULL;
|
|
myData2022->toUnicodeCurrentState = tempState;
|
|
*err= (tempState==INVALID_STATE)?U_ILLEGAL_ESCAPE_SEQUENCE :U_ZERO_ERROR;
|
|
}
|
|
break;
|
|
case ISO_2022_CN:
|
|
{
|
|
StateEnumCN tempState=nextStateToUnicodeCN[myData2022->version][offset];
|
|
_this->mode = UCNV_SI;
|
|
myData2022->currentConverter = myUConverter =
|
|
(tempState!=INVALID_STATE)? myData2022->myConverterArray[tempState]:NULL;
|
|
myData2022->toUnicodeCurrentState =(StateEnum) tempState;
|
|
*err= (tempState==INVALID_STATE)?U_ILLEGAL_ESCAPE_SEQUENCE :U_ZERO_ERROR;
|
|
}
|
|
break;
|
|
case ISO_2022_KR:
|
|
if(offset==0x2e){
|
|
_this->mode = UCNV_SI;
|
|
myUConverter = myData2022->currentConverter=myData2022->fromUnicodeConverter;
|
|
break;
|
|
}
|
|
|
|
default:
|
|
myUConverter=NULL;
|
|
*err = U_ILLEGAL_ESCAPE_SEQUENCE;
|
|
}
|
|
|
|
}
|
|
if (U_SUCCESS(*err)){
|
|
/*Customize the converter with the attributes set on the 2022 converter*/
|
|
myUConverter->fromUCharErrorBehaviour = _this->fromUCharErrorBehaviour;
|
|
myUConverter->fromUContext = _this->fromUContext;
|
|
myUConverter->fromCharErrorBehaviour = _this->fromCharErrorBehaviour;
|
|
myUConverter->toUContext = _this->toUContext;
|
|
|
|
uprv_memcpy(myUConverter->subChar,
|
|
_this->subChar,
|
|
myUConverter->subCharLen = _this->subCharLen);
|
|
|
|
_this->mode = UCNV_SO;
|
|
}
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
|
|
U_CFUNC void UConverter_toUnicode_ISO_2022_CN_OFFSETS_LOGIC(UConverterToUnicodeArgs *args,
|
|
UErrorCode* err){
|
|
char tempBuf[3];
|
|
int plane=0;
|
|
const char* pBuf;
|
|
const char *mySource = ( char *) args->source;
|
|
UChar *myTarget = args->target;
|
|
char *tempLimit = &tempBuf[3];
|
|
const char *mySourceLimit = args->sourceLimit;
|
|
uint32_t targetUniChar = 0x0000;
|
|
uint32_t mySourceChar = 0x0000;
|
|
UConverterDataISO2022* myData=(UConverterDataISO2022*)(args->converter->extraInfo);
|
|
|
|
plane=myData->plane;
|
|
/*Arguments Check*/
|
|
if (U_FAILURE(*err))
|
|
return;
|
|
|
|
if ((args->converter == NULL) || (args->targetLimit < myTarget) || (args->sourceLimit < mySource)){
|
|
*err = U_ILLEGAL_ARGUMENT_ERROR;
|
|
return;
|
|
}
|
|
|
|
while(mySource< args->sourceLimit){
|
|
|
|
targetUniChar =missingCharMarker;
|
|
|
|
if(myTarget < args->targetLimit){
|
|
|
|
mySourceChar= (unsigned char) *mySource++;
|
|
|
|
|
|
switch(mySourceChar){
|
|
|
|
case UCNV_SI:
|
|
if(args->converter->toUnicodeStatus != 0x00){
|
|
break;
|
|
}
|
|
myData->currentType = ASCII1;
|
|
myData->plane=plane = 0;
|
|
continue;
|
|
|
|
case UCNV_SO:
|
|
if(args->converter->toUnicodeStatus != 0x00){
|
|
break;
|
|
}
|
|
|
|
myData->currentType = MBCS;
|
|
continue;
|
|
|
|
case CR:
|
|
/*falls through*/
|
|
case LF:
|
|
if(args->converter->toUnicodeStatus != 0x00){
|
|
break;
|
|
}
|
|
myData->currentType = ASCII1;
|
|
myData->plane=plane = 0;
|
|
/* falls through */
|
|
default:
|
|
/* if we are in the middle of consuming an escape sequence
|
|
* we fall through else we process the input
|
|
*/
|
|
if(myData->key==0){
|
|
if(myData->currentType != ASCII1){
|
|
if(args->converter->toUnicodeStatus == 0x00){
|
|
args->converter->toUnicodeStatus = (UChar) mySourceChar;
|
|
continue;
|
|
}
|
|
else{
|
|
if(plane >0){
|
|
tempBuf[0] = (char) (0x80+plane);
|
|
tempBuf[1] = (char) (args->converter->toUnicodeStatus);
|
|
tempBuf[2] = (char) (mySourceChar);
|
|
tempLimit = &tempBuf[2]+1;
|
|
|
|
}else{
|
|
tempBuf[0] = (char) args->converter->toUnicodeStatus;
|
|
tempBuf[1] = (char) mySourceChar;
|
|
tempLimit = &tempBuf[2];
|
|
}
|
|
mySourceChar+= (uint32_t) args->converter->toUnicodeStatus<<8;
|
|
args->converter->toUnicodeStatus = 0;
|
|
pBuf = tempBuf;
|
|
targetUniChar = _MBCSSimpleGetNextUChar(myData->currentConverter->sharedData, &pBuf, tempLimit, FALSE);
|
|
}
|
|
}
|
|
else{
|
|
if(args->converter->toUnicodeStatus == 0x00){
|
|
targetUniChar = (UChar) mySourceChar;
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
case ESC_2022:
|
|
if(args->converter->toUnicodeStatus != 0x00){
|
|
break;
|
|
}
|
|
mySource--;
|
|
changeState_2022(args->converter,&(mySource),
|
|
args->sourceLimit, args->flush,ISO_2022_CN,&plane,err);
|
|
|
|
myData->plane=plane;
|
|
if(plane>0){
|
|
myData->currentType = MBCS;
|
|
}
|
|
else if(myData->currentConverter &&
|
|
uprv_stricmp("latin_1",
|
|
myData->currentConverter->sharedData->staticData->name)==0){
|
|
|
|
myData->currentType=ASCII1;
|
|
}
|
|
/* invalid or illegal escape sequence */
|
|
if(U_FAILURE(*err)){
|
|
args->target = myTarget;
|
|
args->source = mySource;
|
|
return;
|
|
}
|
|
continue;
|
|
|
|
}
|
|
if(targetUniChar < 0xfffe){
|
|
if(args->offsets){
|
|
|
|
args->offsets[myTarget - args->target]= mySource - args->source - 2
|
|
+(myData->currentType==ASCII);
|
|
}
|
|
*(myTarget++)=(UChar)targetUniChar;
|
|
}
|
|
else{
|
|
|
|
const char *saveSource = args->source;
|
|
UChar *saveTarget = args->target;
|
|
int32_t *saveOffsets = args->offsets;
|
|
UConverterCallbackReason reason;
|
|
int32_t currentOffset ;
|
|
int32_t saveIndex = myTarget - args->target;
|
|
|
|
if(myData->currentType==ASCII1){
|
|
|
|
currentOffset= mySource - args->source -1;
|
|
args->converter->invalidCharBuffer[args->converter->invalidCharLength++] = (char)mySourceChar;
|
|
}else{
|
|
currentOffset= mySource - args->source -2;
|
|
args->converter->invalidCharBuffer[args->converter->invalidCharLength++] = (char)(mySourceChar>>8);
|
|
args->converter->invalidCharBuffer[args->converter->invalidCharLength++] = (char)mySourceChar ;
|
|
}
|
|
|
|
|
|
if(targetUniChar == 0xfffe){
|
|
reason = UCNV_UNASSIGNED;
|
|
*err = U_INVALID_CHAR_FOUND;
|
|
}
|
|
else{
|
|
reason = UCNV_ILLEGAL;
|
|
*err = U_ILLEGAL_CHAR_FOUND;
|
|
}
|
|
|
|
|
|
if(args->offsets){
|
|
saveOffsets=args->offsets;
|
|
args->offsets = args->offsets+(myTarget - args->target);
|
|
}
|
|
|
|
args->target =myTarget;
|
|
myTarget =saveTarget;
|
|
args->source = mySource;
|
|
|
|
args->converter->fromCharErrorBehaviour (
|
|
args->converter->toUContext,
|
|
args,
|
|
args->converter->invalidCharBuffer,
|
|
args->converter->invalidCharLength,
|
|
reason,
|
|
err);
|
|
|
|
if(args->offsets){
|
|
args->offsets = saveOffsets;
|
|
|
|
for (;saveIndex < (args->target - myTarget);saveIndex++) {
|
|
args->offsets[saveIndex] += currentOffset;
|
|
}
|
|
}
|
|
args->converter->invalidCharLength=0;
|
|
myTarget=args->target;
|
|
args->source = saveSource;
|
|
args->target = saveTarget;
|
|
args->offsets = saveOffsets;
|
|
|
|
if(U_FAILURE(*err))
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
else{
|
|
*err =U_BUFFER_OVERFLOW_ERROR;
|
|
break;
|
|
}
|
|
}
|
|
if((args->flush==TRUE)
|
|
&& (mySource == mySourceLimit)
|
|
&& ( args->converter->toUnicodeStatus !=0x00)){
|
|
|
|
*err = U_TRUNCATED_CHAR_FOUND;
|
|
args->converter->toUnicodeStatus = 0x00;
|
|
|
|
}
|
|
/* Reset the state of converter if we consumed
|
|
* the source and flush is true
|
|
*/
|
|
if( (mySource == mySourceLimit) && args->flush){
|
|
setInitialStateToUnicodeJPCN(args->converter,myData);
|
|
}
|
|
|
|
|
|
args->target = myTarget;
|
|
args->source = mySource;
|
|
}
|
|
|
|
U_CFUNC void
|
|
_ISO_2022_WriteSub(UConverterFromUnicodeArgs *args, int32_t offsetIndex, UErrorCode *err) {
|
|
UConverter *cnv = args->converter;
|
|
UConverterDataISO2022 *myConverterData=(UConverterDataISO2022 *) cnv->extraInfo;
|
|
char *p;
|
|
char buffer[4];
|
|
|
|
p = buffer;
|
|
switch(myConverterData->locale[0]){
|
|
case 'j':
|
|
if(myConverterData->fromUnicodeCurrentState!= ASCII){
|
|
myConverterData->fromUnicodeCurrentState= ASCII;
|
|
myConverterData->currentType = (Cnv2022Type) myConverterType[myConverterData->fromUnicodeCurrentState];
|
|
*p++ = '\x1b';
|
|
*p++ = '\x28';
|
|
*p++ = '\x42';
|
|
|
|
}
|
|
*p++ = cnv->subChar[0];
|
|
break;
|
|
case 'c':
|
|
if(args->converter->fromUnicodeStatus) {
|
|
/* DBCS mode and SBCS sub char: change to SBCS */
|
|
myConverterData->fromUnicodeCurrentState=ASCII;
|
|
*p++ = UCNV_SI;
|
|
}
|
|
*p++ = cnv->subChar[0];
|
|
break;
|
|
case 'k':
|
|
if(args->converter->fromUnicodeStatus){
|
|
args->converter->fromUnicodeStatus=0x00;
|
|
*p++= UCNV_SI;
|
|
}
|
|
|
|
*p++ = cnv->subChar[0];
|
|
|
|
default:
|
|
/* not expected */
|
|
break;
|
|
}
|
|
ucnv_cbFromUWriteBytes(args,
|
|
buffer, (int32_t)(p - buffer),
|
|
offsetIndex, err);
|
|
}
|
|
|
|
/* structure for SafeClone calculations */
|
|
struct cloneStruct
|
|
{
|
|
UConverter cnv;
|
|
UConverterDataISO2022 mydata;
|
|
};
|
|
|
|
|
|
U_CFUNC UConverter *
|
|
_ISO_2022_SafeClone(
|
|
const UConverter *cnv,
|
|
void *stackBuffer,
|
|
int32_t *pBufferSize,
|
|
UErrorCode *status)
|
|
{
|
|
struct cloneStruct * localClone;
|
|
int32_t bufferSizeNeeded = sizeof(struct cloneStruct);
|
|
|
|
if (U_FAILURE(*status)){
|
|
return 0;
|
|
}
|
|
|
|
if (*pBufferSize == 0){ /* 'preflighting' request - set needed size into *pBufferSize */
|
|
*pBufferSize = bufferSizeNeeded;
|
|
return 0;
|
|
}
|
|
|
|
localClone = (struct cloneStruct *)stackBuffer;
|
|
memcpy(&localClone->cnv, cnv, sizeof(UConverter));
|
|
localClone->cnv.isCopyLocal = TRUE;
|
|
|
|
memcpy(&localClone->mydata, cnv->extraInfo, sizeof(UConverterDataISO2022));
|
|
localClone->cnv.extraInfo = &localClone->mydata;
|
|
|
|
return &localClone->cnv;
|
|
}
|