2000-10-17 08:03:36 +00:00
|
|
|
/*
|
|
|
|
**********************************************************************
|
2001-03-21 20:44:20 +00:00
|
|
|
* Copyright (C) 2000-2001, International Business Machines
|
2000-10-17 08:03:36 +00:00
|
|
|
* Corporation and others. All Rights Reserved.
|
|
|
|
**********************************************************************
|
|
|
|
* file name: ucnvhz.c
|
|
|
|
* encoding: US-ASCII
|
|
|
|
* tab size: 8 (not used)
|
|
|
|
* indentation:4
|
|
|
|
*
|
|
|
|
* created on: 2000oct16
|
|
|
|
* created by: Ram Viswanadha
|
2000-11-02 04:08:12 +00:00
|
|
|
* 10/31/2000 Ram Implemented offsets logic function
|
2000-10-17 08:03:36 +00:00
|
|
|
*
|
|
|
|
*/
|
|
|
|
|
|
|
|
#include "unicode/utypes.h"
|
|
|
|
#include "cmemory.h"
|
|
|
|
#include "unicode/ucnv_err.h"
|
|
|
|
#include "ucnv_bld.h"
|
|
|
|
#include "unicode/ucnv.h"
|
|
|
|
#include "ucnv_cnv.h"
|
2001-02-02 03:51:57 +00:00
|
|
|
#include "unicode/ucnv_cb.h"
|
2000-10-17 08:03:36 +00:00
|
|
|
|
|
|
|
#define UCNV_TILDE 0x7E /* ~ */
|
|
|
|
#define UCNV_OPEN_BRACE 0x7B /* { */
|
|
|
|
#define UCNV_CLOSE_BRACE 0x7D /* } */
|
2001-02-02 03:51:57 +00:00
|
|
|
#define SB_ESCAPE "\x7E\x7D"
|
|
|
|
#define DB_ESCAPE "\x7E\x7B"
|
|
|
|
#define TILDE_ESCAPE "\x7E\x7E"
|
|
|
|
#define ESC_LEN 2
|
|
|
|
|
|
|
|
|
2001-07-18 23:45:04 +00:00
|
|
|
#define CONCAT_ESCAPE_MACRO( args, targetIndex,targetLength,strToAppend, err, len,sourceIndex){ \
|
|
|
|
while(len-->0){ \
|
|
|
|
if(targetIndex < targetLength){ \
|
|
|
|
args->target[targetIndex] = (unsigned char) *strToAppend; \
|
|
|
|
if(args->offsets!=NULL){ \
|
|
|
|
*(offsets++) = sourceIndex-1; \
|
|
|
|
} \
|
|
|
|
targetIndex++; \
|
|
|
|
} \
|
|
|
|
else{ \
|
|
|
|
args->converter->charErrorBuffer[(int)args->converter->charErrorBufferLength++] = (unsigned char) *strToAppend; \
|
|
|
|
*err =U_BUFFER_OVERFLOW_ERROR; \
|
|
|
|
} \
|
|
|
|
strToAppend++; \
|
|
|
|
} \
|
2000-10-17 08:03:36 +00:00
|
|
|
}
|
|
|
|
|
2001-02-02 03:51:57 +00:00
|
|
|
|
2000-10-17 08:03:36 +00:00
|
|
|
typedef struct{
|
|
|
|
int32_t targetIndex;
|
|
|
|
int32_t sourceIndex;
|
|
|
|
UBool isEscapeAppended;
|
|
|
|
UConverter* gbConverter;
|
|
|
|
UBool isStateDBCS;
|
|
|
|
UBool isTargetUCharDBCS;
|
|
|
|
}UConverterDataHZ;
|
|
|
|
|
|
|
|
|
|
|
|
|
2001-03-22 19:57:05 +00:00
|
|
|
static void
|
|
|
|
_HZOpen(UConverter *cnv, const char *name,const char *locale,uint32_t options, UErrorCode *errorCode){
|
2000-10-17 08:03:36 +00:00
|
|
|
cnv->toUnicodeStatus = 0;
|
|
|
|
cnv->fromUnicodeStatus= 0;
|
|
|
|
cnv->mode=0;
|
2000-12-09 04:08:57 +00:00
|
|
|
cnv->fromUSurrogateLead=0x0000;
|
2000-10-17 08:03:36 +00:00
|
|
|
cnv->extraInfo = uprv_malloc (sizeof (UConverterDataHZ));
|
|
|
|
if(cnv->extraInfo != NULL){
|
|
|
|
((UConverterDataHZ*)cnv->extraInfo)->gbConverter = ucnv_open("ibm-1386",errorCode);
|
|
|
|
((UConverterDataHZ*)cnv->extraInfo)->isStateDBCS = FALSE;
|
|
|
|
((UConverterDataHZ*)cnv->extraInfo)->isEscapeAppended = FALSE;
|
|
|
|
((UConverterDataHZ*)cnv->extraInfo)->targetIndex = 0;
|
|
|
|
((UConverterDataHZ*)cnv->extraInfo)->sourceIndex = 0;
|
2000-10-17 18:28:20 +00:00
|
|
|
((UConverterDataHZ*)cnv->extraInfo)->isTargetUCharDBCS = FALSE;
|
2002-07-02 15:10:30 +00:00
|
|
|
}
|
|
|
|
/* test for NULL */
|
|
|
|
else {
|
2002-06-29 09:31:05 +00:00
|
|
|
*errorCode = U_MEMORY_ALLOCATION_ERROR;
|
|
|
|
return;
|
|
|
|
}
|
2000-10-17 08:03:36 +00:00
|
|
|
}
|
2002-06-29 09:31:05 +00:00
|
|
|
|
2001-03-22 19:57:05 +00:00
|
|
|
static void
|
|
|
|
_HZClose(UConverter *cnv){
|
2001-09-05 22:51:53 +00:00
|
|
|
if((cnv->extraInfo != NULL) && !cnv->isCopyLocal){
|
|
|
|
ucnv_close (((UConverterDataHZ *) (cnv->extraInfo))->gbConverter);
|
|
|
|
uprv_free(cnv->extraInfo);
|
|
|
|
}
|
2000-10-17 08:03:36 +00:00
|
|
|
|
|
|
|
}
|
2001-02-20 01:08:37 +00:00
|
|
|
|
2001-09-06 18:34:57 +00:00
|
|
|
static void
|
2001-03-22 19:57:05 +00:00
|
|
|
_HZReset(UConverter *cnv, UConverterResetChoice choice){
|
2000-12-20 21:18:46 +00:00
|
|
|
if(choice<=UCNV_RESET_TO_UNICODE) {
|
|
|
|
cnv->toUnicodeStatus = 0;
|
|
|
|
cnv->mode=0;
|
|
|
|
if(cnv->extraInfo != NULL){
|
|
|
|
((UConverterDataHZ*)cnv->extraInfo)->isStateDBCS = FALSE;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
if(choice!=UCNV_RESET_TO_UNICODE) {
|
|
|
|
cnv->fromUnicodeStatus= 0;
|
|
|
|
cnv->fromUSurrogateLead=0x0000;
|
|
|
|
if(cnv->extraInfo != NULL){
|
|
|
|
((UConverterDataHZ*)cnv->extraInfo)->isEscapeAppended = FALSE;
|
|
|
|
((UConverterDataHZ*)cnv->extraInfo)->targetIndex = 0;
|
|
|
|
((UConverterDataHZ*)cnv->extraInfo)->sourceIndex = 0;
|
|
|
|
((UConverterDataHZ*)cnv->extraInfo)->isTargetUCharDBCS = FALSE;
|
|
|
|
}
|
2000-10-17 08:03:36 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/**************************************HZ Encoding*************************************************
|
|
|
|
* Rules for HZ encoding
|
|
|
|
*
|
|
|
|
* In ASCII mode, a byte is interpreted as an ASCII character, unless a
|
|
|
|
* '~' is encountered. The character '~' is an escape character. By
|
|
|
|
* convention, it must be immediately followed ONLY by '~', '{' or '\n'
|
|
|
|
* (<LF>), with the following special meaning.
|
|
|
|
|
|
|
|
* 1. The escape sequence '~~' is interpreted as a '~'.
|
|
|
|
* 2. The escape-to-GB sequence '~{' switches the mode from ASCII to GB.
|
|
|
|
* 3. The escape sequence '~\n' is a line-continuation marker to be
|
|
|
|
* consumed with no output produced.
|
|
|
|
* In GB mode, characters are interpreted two bytes at a time as (pure)
|
|
|
|
* GB codes until the escape-from-GB code '~}' is read. This code
|
|
|
|
* switches the mode from GB back to ASCII. (Note that the escape-
|
|
|
|
* from-GB code '~}' ($7E7D) is outside the defined GB range.)
|
|
|
|
*
|
|
|
|
* Source: RFC 1842
|
|
|
|
*/
|
|
|
|
|
|
|
|
|
2001-09-06 18:34:57 +00:00
|
|
|
static void
|
2001-03-22 19:57:05 +00:00
|
|
|
UConverter_toUnicode_HZ_OFFSETS_LOGIC(UConverterToUnicodeArgs *args,
|
2000-10-17 08:03:36 +00:00
|
|
|
UErrorCode* err){
|
|
|
|
char tempBuf[3];
|
2000-10-20 02:46:16 +00:00
|
|
|
const char* pBuf;
|
2000-10-17 08:03:36 +00:00
|
|
|
const char *mySource = ( char *) args->source;
|
|
|
|
UChar *myTarget = args->target;
|
|
|
|
char *tempLimit = &tempBuf[3];
|
|
|
|
const char *mySourceLimit = args->sourceLimit;
|
|
|
|
UChar32 targetUniChar = 0x0000;
|
|
|
|
UChar mySourceChar = 0x0000;
|
|
|
|
UConverterDataHZ* myData=(UConverterDataHZ*)(args->converter->extraInfo);
|
2002-07-09 12:47:45 +00:00
|
|
|
|
2000-10-17 08:03:36 +00:00
|
|
|
if ((args->converter == NULL) || (args->targetLimit < args->target) || (args->sourceLimit < args->source)){
|
|
|
|
*err = U_ILLEGAL_ARGUMENT_ERROR;
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
while(mySource< args->sourceLimit){
|
|
|
|
|
|
|
|
if(myTarget < args->targetLimit){
|
|
|
|
|
|
|
|
mySourceChar= (unsigned char) *mySource++;
|
|
|
|
|
|
|
|
switch(mySourceChar){
|
|
|
|
case 0x0A:
|
|
|
|
if(args->converter->mode ==UCNV_TILDE){
|
|
|
|
args->converter->mode=0;
|
|
|
|
|
|
|
|
}
|
|
|
|
*(myTarget++)=(UChar)mySourceChar;
|
|
|
|
continue;
|
|
|
|
|
|
|
|
case UCNV_TILDE:
|
|
|
|
if(args->converter->mode ==UCNV_TILDE){
|
|
|
|
*(myTarget++)=(UChar)mySourceChar;
|
|
|
|
args->converter->mode=0;
|
|
|
|
continue;
|
|
|
|
|
|
|
|
}
|
|
|
|
else if(args->converter->toUnicodeStatus !=0){
|
|
|
|
args->converter->mode=0;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
else{
|
|
|
|
args->converter->mode = UCNV_TILDE;
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
case UCNV_OPEN_BRACE:
|
|
|
|
if(args->converter->mode == UCNV_TILDE){
|
|
|
|
args->converter->mode=0;
|
|
|
|
myData->isStateDBCS = TRUE;
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
else{
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
case UCNV_CLOSE_BRACE:
|
|
|
|
if(args->converter->mode == UCNV_TILDE){
|
|
|
|
args->converter->mode=0;
|
|
|
|
myData->isStateDBCS = FALSE;
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
else{
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
2000-10-20 02:46:16 +00:00
|
|
|
default:
|
|
|
|
/* if the first byte is equal to TILDE and the trail byte
|
|
|
|
* is not a valid byte then it is an error condition
|
|
|
|
*/
|
|
|
|
if(args->converter->mode == UCNV_TILDE){
|
|
|
|
args->converter->mode=0;
|
|
|
|
mySourceChar= (UChar)(((UCNV_TILDE+0x80) << 8) | ((mySourceChar & 0x00ff)+0x80));
|
|
|
|
goto SAVE_STATE;
|
|
|
|
}
|
|
|
|
|
2000-10-17 08:03:36 +00:00
|
|
|
break;
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
if(myData->isStateDBCS){
|
|
|
|
if(args->converter->toUnicodeStatus == 0x00){
|
|
|
|
args->converter->toUnicodeStatus = (UChar) mySourceChar;
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
else{
|
2001-03-21 20:44:20 +00:00
|
|
|
tempBuf[0] = (char) (args->converter->toUnicodeStatus+0x80) ;
|
|
|
|
tempBuf[1] = (char) (mySourceChar+0x80);
|
2000-11-02 04:08:12 +00:00
|
|
|
mySourceChar= (UChar)(((args->converter->toUnicodeStatus+0x80) << 8) | ((mySourceChar & 0x00ff)+0x80));
|
2000-10-17 08:03:36 +00:00
|
|
|
args->converter->toUnicodeStatus =0x00;
|
|
|
|
pBuf = &tempBuf[0];
|
|
|
|
tempLimit = &tempBuf[2]+1;
|
|
|
|
targetUniChar = _MBCSSimpleGetNextUChar(myData->gbConverter->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->gbConverter->sharedData,
|
|
|
|
&pBuf,tempLimit,args->converter->useFallback);
|
|
|
|
}
|
|
|
|
else{
|
|
|
|
goto SAVE_STATE;
|
|
|
|
}
|
|
|
|
|
|
|
|
}
|
|
|
|
if(targetUniChar < 0xfffe){
|
2002-05-22 22:56:27 +00:00
|
|
|
if(args->offsets) {
|
|
|
|
args->offsets[myTarget - args->target]=(int32_t)(mySource - args->source - 1-(myData->isStateDBCS));
|
|
|
|
}
|
2001-02-02 03:51:57 +00:00
|
|
|
|
2000-10-17 08:03:36 +00:00
|
|
|
*(myTarget++)=(UChar)targetUniChar;
|
|
|
|
}
|
|
|
|
else if(targetUniChar>=0xfffe){
|
|
|
|
SAVE_STATE:
|
2000-11-02 04:08:12 +00:00
|
|
|
{
|
|
|
|
const char *saveSource = args->source;
|
|
|
|
UChar *saveTarget = args->target;
|
|
|
|
int32_t *saveOffsets = args->offsets;
|
|
|
|
|
|
|
|
UConverterCallbackReason reason;
|
|
|
|
int32_t currentOffset ;
|
2002-05-22 22:56:27 +00:00
|
|
|
int32_t saveIndex = (int32_t)(myTarget - args->target);
|
2001-11-02 03:55:12 +00:00
|
|
|
|
|
|
|
args->converter->invalidCharLength=0;
|
|
|
|
|
2000-11-02 04:08:12 +00:00
|
|
|
if(targetUniChar == 0xfffe){
|
|
|
|
reason = UCNV_UNASSIGNED;
|
|
|
|
*err = U_INVALID_CHAR_FOUND;
|
|
|
|
}
|
|
|
|
else{
|
|
|
|
reason = UCNV_ILLEGAL;
|
|
|
|
*err = U_ILLEGAL_CHAR_FOUND;
|
|
|
|
}
|
|
|
|
if(myData->isStateDBCS){
|
|
|
|
|
|
|
|
args->converter->invalidCharBuffer[args->converter->invalidCharLength++] = (char)(tempBuf[0]-0x80);
|
|
|
|
args->converter->invalidCharBuffer[args->converter->invalidCharLength++] = (char)(tempBuf[1]-0x80);
|
2002-05-22 22:56:27 +00:00
|
|
|
currentOffset= (int32_t)(mySource - args->source -2);
|
2000-11-02 04:08:12 +00:00
|
|
|
|
|
|
|
}
|
|
|
|
else{
|
|
|
|
args->converter->invalidCharBuffer[args->converter->invalidCharLength++] = (char)mySourceChar;
|
2002-05-22 22:56:27 +00:00
|
|
|
currentOffset= (int32_t)(mySource - args->source -1);
|
2000-11-02 04:08:12 +00:00
|
|
|
}
|
|
|
|
args->offsets = args->offsets?args->offsets+(myTarget - args->target):0;
|
|
|
|
args->target = myTarget;
|
|
|
|
args->source = mySource;
|
|
|
|
myTarget = saveTarget;
|
2001-02-02 03:51:57 +00:00
|
|
|
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;
|
|
|
|
}
|
|
|
|
}
|
2001-03-21 20:44:20 +00:00
|
|
|
args->source = saveSource;
|
2000-11-02 04:08:12 +00:00
|
|
|
myTarget = args->target;
|
2001-03-21 20:44:20 +00:00
|
|
|
args->target = saveTarget;
|
|
|
|
args->offsets = saveOffsets;
|
2000-11-02 04:08:12 +00:00
|
|
|
if(U_FAILURE(*err))
|
|
|
|
break;
|
2000-10-17 08:03:36 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
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;
|
|
|
|
}
|
2000-11-17 03:01:23 +00:00
|
|
|
/* Reset the state of converter if we consumed
|
|
|
|
* the source and flush is true
|
|
|
|
*/
|
|
|
|
if( (mySource == mySourceLimit) && args->flush){
|
2000-12-20 21:18:46 +00:00
|
|
|
_HZReset(args->converter, UCNV_RESET_TO_UNICODE);
|
2000-11-17 03:01:23 +00:00
|
|
|
}
|
|
|
|
|
2000-10-17 08:03:36 +00:00
|
|
|
args->target = myTarget;
|
|
|
|
args->source = mySource;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2001-09-06 18:34:57 +00:00
|
|
|
static void
|
2001-03-22 19:57:05 +00:00
|
|
|
UConverter_fromUnicode_HZ_OFFSETS_LOGIC (UConverterFromUnicodeArgs * args,
|
2001-02-02 03:51:57 +00:00
|
|
|
UErrorCode * err){
|
2000-10-17 08:03:36 +00:00
|
|
|
const UChar *mySource = args->source;
|
|
|
|
unsigned char *myTarget = (unsigned char *) args->target;
|
2001-02-02 03:51:57 +00:00
|
|
|
int32_t* offsets = args->offsets;
|
2000-10-17 08:03:36 +00:00
|
|
|
int32_t mySourceIndex = 0;
|
|
|
|
int32_t myTargetIndex = 0;
|
2002-05-22 22:56:27 +00:00
|
|
|
int32_t targetLength = (int32_t)(args->targetLimit - args->target);
|
|
|
|
int32_t mySourceLength = (int32_t)(args->sourceLimit - args->source);
|
2000-10-17 08:03:36 +00:00
|
|
|
int32_t length=0;
|
2000-11-29 01:04:03 +00:00
|
|
|
uint32_t targetUniChar = 0x0000;
|
2000-10-17 08:03:36 +00:00
|
|
|
UChar32 mySourceChar = 0x0000,c=0x0000;
|
|
|
|
UConverterDataHZ *myConverterData=(UConverterDataHZ*)args->converter->extraInfo;
|
|
|
|
UBool isTargetUCharDBCS = (UBool) myConverterData->isTargetUCharDBCS;
|
|
|
|
UBool oldIsTargetUCharDBCS = isTargetUCharDBCS;
|
|
|
|
UConverterCallbackReason reason;
|
|
|
|
UBool isEscapeAppended =FALSE;
|
2001-02-02 03:51:57 +00:00
|
|
|
int len =0;
|
2001-02-03 03:15:29 +00:00
|
|
|
const char* escSeq=NULL;
|
2002-07-09 12:47:45 +00:00
|
|
|
|
2000-10-17 08:03:36 +00:00
|
|
|
if ((args->converter == NULL) || (args->targetLimit < args->target) || (args->sourceLimit < args->source)){
|
|
|
|
*err = U_ILLEGAL_ARGUMENT_ERROR;
|
|
|
|
return;
|
|
|
|
}
|
2000-11-08 23:16:20 +00:00
|
|
|
if(args->converter->fromUSurrogateLead!=0 && myTargetIndex < targetLength) {
|
|
|
|
goto getTrail;
|
|
|
|
}
|
2000-10-17 08:03:36 +00:00
|
|
|
/*writing the char to the output stream */
|
2001-02-02 03:51:57 +00:00
|
|
|
while (mySourceIndex < mySourceLength){
|
2001-02-16 20:16:09 +00:00
|
|
|
targetUniChar = missingCharMarker;
|
2000-10-17 08:03:36 +00:00
|
|
|
if (myTargetIndex < targetLength){
|
|
|
|
|
|
|
|
c=mySourceChar = (UChar) args->source[mySourceIndex++];
|
|
|
|
|
2001-02-02 03:51:57 +00:00
|
|
|
|
2000-10-17 08:03:36 +00:00
|
|
|
oldIsTargetUCharDBCS = isTargetUCharDBCS;
|
2001-02-02 03:51:57 +00:00
|
|
|
if(mySourceChar ==UCNV_TILDE){
|
|
|
|
/*concatEscape(args, &myTargetIndex, &targetLength,"\x7E\x7E",err,2,&mySourceIndex);*/
|
|
|
|
len = ESC_LEN;
|
|
|
|
escSeq = TILDE_ESCAPE;
|
|
|
|
CONCAT_ESCAPE_MACRO(args, myTargetIndex, targetLength, escSeq,err,len,mySourceIndex);
|
2000-10-17 08:03:36 +00:00
|
|
|
continue;
|
|
|
|
}
|
|
|
|
else{
|
|
|
|
length= _MBCSFromUChar32(myConverterData->gbConverter->sharedData,
|
2001-02-02 03:51:57 +00:00
|
|
|
mySourceChar,&targetUniChar,args->converter->useFallback);
|
2000-10-17 08:03:36 +00:00
|
|
|
|
|
|
|
}
|
|
|
|
/* only DBCS or SBCS characters are expected*/
|
2000-10-20 02:46:16 +00:00
|
|
|
/* DB haracters with high bit set to 1 are expected */
|
2001-02-03 03:15:29 +00:00
|
|
|
if(length > 2 || length==0 ||(((targetUniChar & 0x8080) != 0x8080)&& length==2)){
|
2001-02-23 04:39:32 +00:00
|
|
|
targetUniChar= missingCharMarker;
|
2000-10-17 22:56:32 +00:00
|
|
|
}
|
2000-10-17 08:03:36 +00:00
|
|
|
if (targetUniChar != missingCharMarker){
|
2001-02-02 03:51:57 +00:00
|
|
|
myConverterData->isTargetUCharDBCS = isTargetUCharDBCS = (UBool)(targetUniChar>0x00FF);
|
2000-11-08 23:16:20 +00:00
|
|
|
if(oldIsTargetUCharDBCS != isTargetUCharDBCS || !myConverterData->isEscapeAppended ){
|
2000-10-17 08:03:36 +00:00
|
|
|
/*Shifting from a double byte to single byte mode*/
|
|
|
|
if(!isTargetUCharDBCS){
|
2001-02-02 03:51:57 +00:00
|
|
|
len =ESC_LEN;
|
|
|
|
escSeq = SB_ESCAPE;
|
|
|
|
CONCAT_ESCAPE_MACRO(args, myTargetIndex, targetLength, escSeq,err,len,mySourceIndex);
|
2000-10-17 08:03:36 +00:00
|
|
|
myConverterData->isEscapeAppended =isEscapeAppended =TRUE;
|
|
|
|
}
|
|
|
|
else{ /* Shifting from a single byte to double byte mode*/
|
2001-02-02 03:51:57 +00:00
|
|
|
len =ESC_LEN;
|
|
|
|
escSeq = DB_ESCAPE;
|
|
|
|
CONCAT_ESCAPE_MACRO(args, myTargetIndex, targetLength, escSeq,err,len,mySourceIndex);
|
2000-10-17 08:03:36 +00:00
|
|
|
myConverterData->isEscapeAppended =isEscapeAppended =TRUE;
|
2000-10-20 02:46:16 +00:00
|
|
|
|
2000-10-17 08:03:36 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2001-02-02 03:51:57 +00:00
|
|
|
if(isTargetUCharDBCS){
|
|
|
|
if( myTargetIndex <targetLength){
|
|
|
|
args->target[myTargetIndex++] =(char) ((targetUniChar >> 8) -0x80);
|
2001-04-07 01:24:30 +00:00
|
|
|
if(offsets){
|
|
|
|
*(offsets++) = mySourceIndex-1;
|
|
|
|
}
|
2001-02-02 03:51:57 +00:00
|
|
|
if(myTargetIndex < targetLength){
|
|
|
|
args->target[myTargetIndex++] =(char) ((targetUniChar & 0x00FF) -0x80);
|
2001-04-07 01:24:30 +00:00
|
|
|
if(offsets){
|
|
|
|
*(offsets++) = mySourceIndex-1;
|
|
|
|
}
|
2001-02-02 03:51:57 +00:00
|
|
|
}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 );
|
2001-04-07 01:24:30 +00:00
|
|
|
if(offsets){
|
|
|
|
*(offsets++) = mySourceIndex-1;
|
|
|
|
}
|
2001-02-02 03:51:57 +00:00
|
|
|
|
|
|
|
}else{
|
|
|
|
args->converter->charErrorBuffer[args->converter->charErrorBufferLength++] = (char) targetUniChar;
|
|
|
|
*err = U_BUFFER_OVERFLOW_ERROR;
|
|
|
|
}
|
|
|
|
}
|
2001-04-07 01:24:30 +00:00
|
|
|
|
2000-10-17 08:03:36 +00:00
|
|
|
}
|
|
|
|
else{
|
2001-02-23 04:39:32 +00:00
|
|
|
/* oops.. the code point is unassingned
|
|
|
|
* set the error and reason
|
|
|
|
*/
|
|
|
|
reason =UCNV_UNASSIGNED;
|
|
|
|
*err =U_INVALID_CHAR_FOUND;
|
2001-02-02 03:51:57 +00:00
|
|
|
/*Handle surrogates */
|
|
|
|
/*check if the char is a First surrogate*/
|
|
|
|
if(UTF_IS_SURROGATE(mySourceChar)) {
|
|
|
|
if(UTF_IS_SURROGATE_FIRST(mySourceChar)) {
|
|
|
|
args->converter->fromUSurrogateLead=(UChar)mySourceChar;
|
2000-11-08 23:16:20 +00:00
|
|
|
getTrail:
|
2001-02-02 03:51:57 +00:00
|
|
|
/*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;
|
2001-02-16 20:16:09 +00:00
|
|
|
mySourceChar=UTF16_GET_PAIR_VALUE(args->converter->fromUSurrogateLead, trail);
|
2001-02-02 03:51:57 +00:00
|
|
|
args->converter->fromUSurrogateLead=0x00;
|
2001-02-23 04:39:32 +00:00
|
|
|
/* there are no surrogates in GB2312*/
|
2001-07-18 23:45:04 +00:00
|
|
|
*err = U_INVALID_CHAR_FOUND;
|
2001-02-23 04:39:32 +00:00
|
|
|
reason=UCNV_UNASSIGNED;
|
2001-02-02 03:51:57 +00:00
|
|
|
/* exit this condition tree */
|
|
|
|
} else {
|
|
|
|
/* this is an unmatched lead code unit (1st surrogate) */
|
|
|
|
/* callback(illegal) */
|
|
|
|
reason=UCNV_ILLEGAL;
|
|
|
|
*err=U_ILLEGAL_CHAR_FOUND;
|
|
|
|
}
|
2000-11-08 23:16:20 +00:00
|
|
|
} else {
|
2001-02-02 03:51:57 +00:00
|
|
|
/* no more input */
|
|
|
|
*err = U_ZERO_ERROR;
|
|
|
|
break;
|
2000-11-08 23:16:20 +00:00
|
|
|
}
|
|
|
|
} else {
|
2001-02-02 03:51:57 +00:00
|
|
|
/* this is an unmatched trail code unit (2nd surrogate) */
|
|
|
|
/* callback(illegal) */
|
|
|
|
reason=UCNV_ILLEGAL;
|
|
|
|
*err=U_ILLEGAL_CHAR_FOUND;
|
2000-11-02 04:08:12 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
{
|
2001-02-02 03:51:57 +00:00
|
|
|
int32_t saveIndex=0;
|
|
|
|
int32_t currentOffset = (args->offsets) ? *(offsets-1)+1:0;
|
2000-11-02 04:08:12 +00:00
|
|
|
char * saveTarget = args->target;
|
|
|
|
const UChar* saveSource = args->source;
|
|
|
|
int32_t *saveOffsets = args->offsets;
|
2001-02-16 20:16:09 +00:00
|
|
|
|
2001-11-02 03:55:12 +00:00
|
|
|
args->converter->invalidUCharLength = 0;
|
|
|
|
|
2001-02-16 20:16:09 +00:00
|
|
|
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;
|
|
|
|
}
|
2000-11-02 04:08:12 +00:00
|
|
|
|
2001-02-02 03:51:57 +00:00
|
|
|
myConverterData->isTargetUCharDBCS = (UBool)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 */
|
2001-02-16 20:16:09 +00:00
|
|
|
args->converter->fromUCharErrorBehaviour ( args->converter->fromUContext,
|
|
|
|
args,
|
|
|
|
args->converter->invalidUCharBuffer,
|
|
|
|
args->converter->invalidUCharLength,
|
|
|
|
(UChar32) (mySourceChar),
|
|
|
|
reason,
|
|
|
|
err);
|
2001-02-02 03:51:57 +00:00
|
|
|
/*Update the local Indexes so that the conversion
|
|
|
|
*can restart at the right points
|
|
|
|
*/
|
2002-05-22 22:56:27 +00:00
|
|
|
myTargetIndex = (int32_t)(args->target - (char*)myTarget);
|
|
|
|
mySourceIndex = (int32_t)(args->source - mySource);
|
2001-02-02 03:51:57 +00:00
|
|
|
args->offsets = saveOffsets;
|
|
|
|
saveIndex = myTargetIndex - saveIndex;
|
|
|
|
if(args->offsets){
|
|
|
|
args->offsets = saveOffsets;
|
|
|
|
while(saveIndex-->0){
|
|
|
|
*offsets = currentOffset;
|
|
|
|
offsets++;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
isTargetUCharDBCS=myConverterData->isTargetUCharDBCS;
|
2000-11-02 04:08:12 +00:00
|
|
|
args->source = saveSource;
|
|
|
|
args->target = saveTarget;
|
2001-02-02 03:51:57 +00:00
|
|
|
args->offsets = saveOffsets;
|
|
|
|
args->converter->fromUSurrogateLead=0x00;
|
|
|
|
if (U_FAILURE (*err))
|
2000-11-02 04:08:12 +00:00
|
|
|
break;
|
2001-02-02 03:51:57 +00:00
|
|
|
|
2000-11-02 04:08:12 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
else{
|
|
|
|
*err = U_BUFFER_OVERFLOW_ERROR;
|
|
|
|
break;
|
|
|
|
}
|
2000-11-08 23:16:20 +00:00
|
|
|
targetUniChar=missingCharMarker;
|
|
|
|
}
|
|
|
|
/*If at the end of conversion we are still carrying state information
|
|
|
|
*flush is TRUE, we can deduce that the input stream is truncated
|
|
|
|
*/
|
2001-02-02 03:51:57 +00:00
|
|
|
if (args->converter->fromUSurrogateLead !=0 && (mySourceIndex == mySourceLength) && args->flush){
|
|
|
|
*err = U_TRUNCATED_CHAR_FOUND;
|
|
|
|
args->converter->toUnicodeStatus = 0x00;
|
2000-11-02 04:08:12 +00:00
|
|
|
}
|
2000-11-17 03:01:23 +00:00
|
|
|
/* Reset the state of converter if we consumed
|
|
|
|
* the source and flush is true
|
|
|
|
*/
|
2001-02-02 03:51:57 +00:00
|
|
|
if( (mySourceIndex == mySourceLength) && args->flush){
|
2000-12-20 21:18:46 +00:00
|
|
|
_HZReset(args->converter, UCNV_RESET_FROM_UNICODE);
|
2000-11-17 03:01:23 +00:00
|
|
|
}
|
|
|
|
|
2000-11-02 04:08:12 +00:00
|
|
|
args->target += myTargetIndex;
|
|
|
|
args->source += mySourceIndex;
|
|
|
|
myConverterData->isTargetUCharDBCS = isTargetUCharDBCS;
|
2001-02-02 03:51:57 +00:00
|
|
|
}
|
|
|
|
|
2001-09-06 18:34:57 +00:00
|
|
|
static void
|
2001-02-02 03:51:57 +00:00
|
|
|
_HZ_WriteSub(UConverterFromUnicodeArgs *args, int32_t offsetIndex, UErrorCode *err) {
|
|
|
|
UConverter *cnv = args->converter;
|
|
|
|
UConverterDataHZ *convData=(UConverterDataHZ *) cnv->extraInfo;
|
|
|
|
char *p;
|
|
|
|
char buffer[4];
|
|
|
|
p = buffer;
|
2002-07-09 12:47:45 +00:00
|
|
|
|
2001-02-02 03:51:57 +00:00
|
|
|
if( convData->isTargetUCharDBCS){
|
|
|
|
*p++= UCNV_TILDE;
|
|
|
|
*p++= UCNV_CLOSE_BRACE;
|
|
|
|
convData->isTargetUCharDBCS=FALSE;
|
|
|
|
}
|
|
|
|
*p++= cnv->subChar[0];
|
|
|
|
|
|
|
|
ucnv_cbFromUWriteBytes(args,
|
|
|
|
buffer, (int32_t)(p - buffer),
|
|
|
|
offsetIndex, err);
|
2000-10-17 08:03:36 +00:00
|
|
|
}
|
2001-02-16 22:22:40 +00:00
|
|
|
|
|
|
|
/* structure for SafeClone calculations */
|
|
|
|
struct cloneStruct
|
|
|
|
{
|
2001-03-21 20:44:20 +00:00
|
|
|
UConverter cnv;
|
|
|
|
UConverterDataHZ mydata;
|
2001-02-16 22:22:40 +00:00
|
|
|
};
|
|
|
|
|
|
|
|
|
2001-09-06 18:34:57 +00:00
|
|
|
static UConverter *
|
2001-03-21 20:44:20 +00:00
|
|
|
_HZ_SafeClone(const UConverter *cnv,
|
|
|
|
void *stackBuffer,
|
|
|
|
int32_t *pBufferSize,
|
|
|
|
UErrorCode *status)
|
2001-02-16 22:22:40 +00:00
|
|
|
{
|
2001-03-21 20:44:20 +00:00
|
|
|
struct cloneStruct * localClone;
|
|
|
|
int32_t bufferSizeNeeded = sizeof(struct cloneStruct);
|
2001-02-16 22:22:40 +00:00
|
|
|
|
|
|
|
if (U_FAILURE(*status)){
|
|
|
|
return 0;
|
|
|
|
}
|
2001-03-21 20:44:20 +00:00
|
|
|
|
|
|
|
if (*pBufferSize == 0){ /* 'preflighting' request - set needed size into *pBufferSize */
|
|
|
|
*pBufferSize = bufferSizeNeeded;
|
|
|
|
return 0;
|
2001-02-16 22:22:40 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
localClone = (struct cloneStruct *)stackBuffer;
|
2001-07-18 23:45:04 +00:00
|
|
|
uprv_memcpy(&localClone->cnv, cnv, sizeof(UConverter));
|
2001-03-21 20:44:20 +00:00
|
|
|
localClone->cnv.isCopyLocal = TRUE;
|
|
|
|
|
2001-07-18 23:45:04 +00:00
|
|
|
uprv_memcpy(&localClone->mydata, cnv->extraInfo, sizeof(UConverterDataHZ));
|
2001-03-21 20:44:20 +00:00
|
|
|
localClone->cnv.extraInfo = &localClone->mydata;
|
2001-02-16 22:22:40 +00:00
|
|
|
|
2001-03-21 20:44:20 +00:00
|
|
|
return &localClone->cnv;
|
2001-02-16 22:22:40 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
|
2001-09-06 18:34:57 +00:00
|
|
|
|
|
|
|
static const UConverterImpl _HZImpl={
|
|
|
|
|
|
|
|
UCNV_HZ,
|
|
|
|
|
|
|
|
NULL,
|
|
|
|
NULL,
|
|
|
|
|
|
|
|
_HZOpen,
|
|
|
|
_HZClose,
|
|
|
|
_HZReset,
|
|
|
|
|
|
|
|
UConverter_toUnicode_HZ_OFFSETS_LOGIC,
|
|
|
|
UConverter_toUnicode_HZ_OFFSETS_LOGIC,
|
|
|
|
UConverter_fromUnicode_HZ_OFFSETS_LOGIC,
|
|
|
|
UConverter_fromUnicode_HZ_OFFSETS_LOGIC,
|
|
|
|
NULL,
|
|
|
|
|
|
|
|
NULL,
|
|
|
|
NULL,
|
|
|
|
_HZ_WriteSub,
|
|
|
|
_HZ_SafeClone
|
|
|
|
};
|
|
|
|
|
|
|
|
static const UConverterStaticData _HZStaticData={
|
|
|
|
sizeof(UConverterStaticData),
|
|
|
|
"HZ",
|
|
|
|
0,
|
|
|
|
UCNV_IBM,
|
|
|
|
UCNV_HZ,
|
|
|
|
1,
|
|
|
|
4,
|
|
|
|
{ 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 _HZData={
|
|
|
|
sizeof(UConverterSharedData),
|
|
|
|
~((uint32_t) 0),
|
|
|
|
NULL,
|
|
|
|
NULL,
|
|
|
|
&_HZStaticData,
|
|
|
|
FALSE,
|
|
|
|
&_HZImpl,
|
|
|
|
0
|
|
|
|
};
|
|
|
|
|