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bf83f099ba16f0a87f9bebe8cfc5fd4e59fee805
axyz-deps/include/xercesc/util/Transcoders/IconvGNU/IconvGNUTransService.cpp
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sippeangelo 1b478d3159 Added Xerces-C++ 3.1.2
2015-12-01 10:23:50 +01:00

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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/*
* $Id: IconvGNUTransService.cpp 1224888 2011-12-27 10:25:47Z amassari $
*/
// ---------------------------------------------------------------------------
// Includes
// ---------------------------------------------------------------------------
#if HAVE_CONFIG_H
#include <config.h>
#endif
#include <ctype.h>
#include <locale.h>
#include <errno.h>
#if HAVE_ENDIAN_H
#include <endian.h>
#elif HAVE_MACHINE_ENDIAN_H
#include <machine/endian.h>
#elif HAVE_ARPA_NAMESER_COMPAT_H
#include <arpa/nameser_compat.h>
#endif
#define MAX_UCHSIZE 4
//--------------------------------------------------
// Macro-definitions to translate "native unicode"
// characters <-> XMLCh with different host byte order
// and encoding schemas.
# if BYTE_ORDER == LITTLE_ENDIAN
# define IXMLCh2WC16(x,w) \
*(w) = ((*(x)) >> 8) & 0xFF; \
*((w)+1) = (*(x)) & 0xFF
# define IWC162XMLCh(w,x) *(x) = ((*(w)) << 8) | (*((w)+1))
# define XMLCh2WC16(x,w) \
*(w) = (*(x)) & 0xFF; \
*((w)+1) = ((*(x)) >> 8) & 0xFF
# define WC162XMLCh(w,x) *(x) = ((*((w)+1)) << 8) | (*(w))
# define IXMLCh2WC32(x,w) \
*(w) = ((*(x)) >> 24) & 0xFF; \
*((w)+1) = ((*(x)) >> 16) & 0xFF; \
*((w)+2) = ((*(x)) >> 8) & 0xFF; \
*((w)+3) = (*(x)) & 0xFF
# define IWC322XMLCh(w,x) \
*(x) = ((*(w)) << 24) | ((*((w)+1)) << 16) | \
((*((w)+2)) << 8) | (*((w)+3))
# define XMLCh2WC32(x,w) \
*((w)+3) = ((*(x)) >> 24) & 0xFF; \
*((w)+2) = ((*(x)) >> 16) & 0xFF; \
*((w)+1) = ((*(x)) >> 8) & 0xFF; \
*(w) = (*(x)) & 0xFF
# define WC322XMLCh(w,x) \
*(x) = ((*((w)+3)) << 24) | ((*((w)+2)) << 16) | \
((*((w)+1)) << 8) | (*(w))
# else /* BYTE_ORDER != LITTLE_ENDIAN */
# define XMLCh2WC16(x,w) \
*(w) = ((*(x)) >> 8) & 0xFF; \
*((w)+1) = (*(x)) & 0xFF
# define WC162XMLCh(w,x) *(x) = ((*(w)) << 8) | (*((w)+1))
# define IXMLCh2WC16(x,w) \
*(w) = (*(x)) & 0xFF; \
*((w)+1) = ((*(x)) >> 8) & 0xFF
# define IWC162XMLCh(w,x) *(x) = ((*((w)+1)) << 8) | (*(w))
# define XMLCh2WC32(x,w) \
*(w) = ((*(x)) >> 24) & 0xFF; \
*((w)+1) = ((*(x)) >> 16) & 0xFF; \
*((w)+2) = ((*(x)) >> 8) & 0xFF; \
*((w)+3) = (*(x)) & 0xFF
# define WC322XMLCh(w,x) \
*(x) = ((*(w)) << 24) | ((*((w)+1)) << 16) | \
((*((w)+2)) << 8) | (*((w)+3))
# define IXMLCh2WC32(x,w) \
*((w)+3) = ((*(x)) >> 24) & 0xFF; \
*((w)+2) = ((*(x)) >> 16) & 0xFF; \
*((w)+1) = ((*(x)) >> 8) & 0xFF; \
*(w) = (*(x)) & 0xFF
# define IWC322XMLCh(w,x) \
*(x) = ((*((w)+3)) << 24) | ((*((w)+2)) << 16) | \
((*((w)+1)) << 8) | (*(w))
# endif /* BYTE_ORDER == LITTLE_ENDIAN */
#include <wchar.h>
#include <string.h>
#include <stdlib.h>
#include <stdio.h>
#include <xercesc/util/XMLString.hpp>
#include <xercesc/util/XMLUniDefs.hpp>
#include <xercesc/util/XMLUni.hpp>
#include <xercesc/util/PlatformUtils.hpp>
#include <xercesc/util/TranscodingException.hpp>
#include <xercesc/util/Janitor.hpp>
#include "IconvGNUTransService.hpp"
XERCES_CPP_NAMESPACE_BEGIN
// ---------------------------------------------------------------------------
// Description of encoding schemas, supported by iconv()
// ---------------------------------------------------------------------------
typedef struct __IconvGNUEncoding {
const char* fSchema; // schema name
size_t fUChSize; // size of the character
unsigned int fUBO; // byte order, relative to the host
} IconvGNUEncoding;
static const IconvGNUEncoding gIconvGNUEncodings[] = {
{ "UTF-16LE", 2, LITTLE_ENDIAN },
{ "UTF-16BE", 2, BIG_ENDIAN },
{ "UCS-2LE", 2, LITTLE_ENDIAN },
{ "UCS-2BE", 2, BIG_ENDIAN },
{ "UCS-2-INTERNAL", 2, BYTE_ORDER },
{ NULL, 0, 0 }
};
// ---------------------------------------------------------------------------
// Local, const data
// ---------------------------------------------------------------------------
static const unsigned int gTempBuffArraySize = 4096;
static const XMLCh gMyServiceId[] =
{
chLatin_I, chLatin_C, chLatin_o, chLatin_n, chLatin_v, chNull
};
// ---------------------------------------------------------------------------
// Local methods
// ---------------------------------------------------------------------------
static XMLSize_t getWideCharLength(const XMLCh* const src)
{
if (!src)
return 0;
XMLSize_t len = 0;
const XMLCh* pTmp = src;
while (*pTmp++)
len++;
return len;
}
//----------------------------------------------------------------------------
// There is implementation of the libiconv for FreeBSD (available through the
// ports collection). The following is a wrapper around the iconv().
//----------------------------------------------------------------------------
IconvGNUWrapper::IconvGNUWrapper (MemoryManager* manager)
: fUChSize(0), fUBO(LITTLE_ENDIAN),
fCDTo((iconv_t)-1), fCDFrom((iconv_t)-1), fMutex(manager)
{
}
IconvGNUWrapper::IconvGNUWrapper ( iconv_t cd_from,
iconv_t cd_to,
size_t uchsize,
unsigned int ubo,
MemoryManager* manager)
: fUChSize(uchsize), fUBO(ubo),
fCDTo(cd_to), fCDFrom(cd_from), fMutex(manager)
{
if (fCDFrom == (iconv_t) -1 || fCDTo == (iconv_t) -1) {
XMLPlatformUtils::panic (PanicHandler::Panic_NoTransService);
}
}
IconvGNUWrapper::~IconvGNUWrapper()
{
}
// Convert "native unicode" character into XMLCh
void IconvGNUWrapper::mbcToXMLCh (const char *mbc, XMLCh *toRet) const
{
if (fUBO == BYTE_ORDER) {
if (fUChSize == sizeof(XMLCh))
*toRet = *((XMLCh*) mbc);
else if (fUChSize == 2) {
WC162XMLCh( mbc, toRet );
} else {
WC322XMLCh( mbc, toRet );
}
} else {
if (fUChSize == 2) {
IWC162XMLCh( mbc, toRet );
} else {
IWC322XMLCh( mbc, toRet );
}
}
}
// Convert XMLCh into "native unicode" character
void IconvGNUWrapper::xmlChToMbc (XMLCh xch, char *mbc) const
{
if (fUBO == BYTE_ORDER) {
if (fUChSize == sizeof(XMLCh)) {
memcpy (mbc, &xch, fUChSize);
return;
}
if (fUChSize == 2) {
XMLCh2WC16( &xch, mbc );
} else {
XMLCh2WC32( &xch, mbc );
}
} else {
if (fUChSize == 2) {
IXMLCh2WC16( &xch, mbc );
} else {
IXMLCh2WC32( &xch, mbc );
}
}
}
// Return uppercase equivalent for XMLCh
XMLCh IconvGNUWrapper::toUpper (const XMLCh ch)
{
if (ch <= 0x7F)
return toupper(ch);
char wcbuf[MAX_UCHSIZE * 2];
xmlChToMbc (ch, wcbuf);
char tmpArr[4];
#if ICONV_USES_CONST_POINTER
const char* ptr = wcbuf;
#else
char* ptr = wcbuf;
#endif
size_t len = fUChSize;
char *pTmpArr = tmpArr;
size_t bLen = 2;
if (::iconv (fCDTo, &ptr, &len, &pTmpArr, &bLen) == (size_t) -1)
return 0;
tmpArr[1] = toupper (*((unsigned char *)tmpArr));
*tmpArr = tmpArr[1];
len = 1;
pTmpArr = wcbuf;
bLen = fUChSize;
ptr = tmpArr;
if (::iconv (fCDFrom, &ptr, &len, &pTmpArr, &bLen) == (size_t) -1)
return 0;
mbcToXMLCh (wcbuf, (XMLCh*) &ch);
return ch;
}
// Return lowercase equivalent for XMLCh
XMLCh IconvGNUWrapper::toLower (const XMLCh ch)
{
if (ch <= 0x7F)
return tolower(ch);
char wcbuf[MAX_UCHSIZE * 2];
xmlChToMbc (ch, wcbuf);
char tmpArr[4];
#if ICONV_USES_CONST_POINTER
const char* ptr = wcbuf;
#else
char* ptr = wcbuf;
#endif
size_t len = fUChSize;
char *pTmpArr = tmpArr;
size_t bLen = 2;
if (::iconv (fCDTo, &ptr, &len, &pTmpArr, &bLen) == (size_t) -1)
return 0;
tmpArr[1] = tolower (*((unsigned char*)tmpArr));
*tmpArr = tmpArr[1];
len = 1;
pTmpArr = wcbuf;
bLen = fUChSize;
ptr = tmpArr;
if (::iconv (fCDFrom, &ptr, &len, &pTmpArr, &bLen) == (size_t) -1)
return 0;
mbcToXMLCh (wcbuf, (XMLCh*) &ch);
return ch;
}
// Fill array of XMLCh characters with data, supplyed in the array
// of "native unicode" characters.
XMLCh* IconvGNUWrapper::mbsToXML
(
const char* mbs_str
, XMLCh* xml_str
, size_t cnt
) const
{
if (mbs_str == NULL || xml_str == NULL || cnt == 0)
return NULL;
if (fUBO == BYTE_ORDER) {
if (fUChSize == sizeof(XMLCh)) {
// null-transformation
memcpy (xml_str, mbs_str, fUChSize * cnt);
return xml_str;
}
if (fUChSize == 2)
for (size_t i = 0; i < cnt; i++, mbs_str += fUChSize) {
WC162XMLCh( mbs_str, xml_str + i);
}
else
for (size_t i = 0; i < cnt; i++, mbs_str += fUChSize) {
WC322XMLCh( mbs_str, xml_str + i );
}
} else {
if (fUChSize == 2)
for (size_t i = 0; i < cnt; i++, mbs_str += fUChSize) {
IWC162XMLCh( mbs_str, xml_str + i );
}
else
for (size_t i = 0; i < cnt; i++, mbs_str += fUChSize) {
IWC322XMLCh( mbs_str, xml_str + i );
}
}
return xml_str;
}
// Fill array of "native unicode" characters with data, supplyed
// in the array of XMLCh characters.
char* IconvGNUWrapper::xmlToMbs
(
const XMLCh* xml_str
, char* mbs_str
, size_t cnt
) const
{
if (mbs_str == NULL || xml_str == NULL || cnt == 0)
return NULL;
char *toReturn = mbs_str;
if (fUBO == BYTE_ORDER) {
if (fUChSize == sizeof(XMLCh)) {
// null-transformation
memcpy (mbs_str, xml_str, fUChSize * cnt);
return toReturn;
}
if (fUChSize == 2)
for (size_t i = 0; i < cnt; i++, mbs_str += fUChSize, xml_str++) {
XMLCh2WC16( xml_str, mbs_str );
}
else
for (size_t i = 0; i < cnt; i++, mbs_str += fUChSize, xml_str++) {
XMLCh2WC32( xml_str, mbs_str );
}
} else {
if (fUChSize == 2)
for (size_t i = 0; i < cnt; i++, mbs_str += fUChSize, xml_str++) {
IXMLCh2WC16( xml_str, mbs_str );
}
else
for (size_t i = 0; i < cnt; i++, mbs_str += fUChSize, xml_str++) {
IXMLCh2WC32( xml_str, mbs_str );
}
}
return toReturn;
}
size_t IconvGNUWrapper::iconvFrom ( const char *fromPtr,
size_t *fromLen,
char **toPtr,
size_t toLen )
{
#if ICONV_USES_CONST_POINTER
const char ** tmpPtr = &fromPtr;
#else
char ** tmpPtr = (char**)&fromPtr;
#endif
return ::iconv (fCDFrom, tmpPtr, fromLen, toPtr, &toLen);
}
size_t IconvGNUWrapper::iconvTo ( const char *fromPtr,
size_t *fromLen,
char **toPtr,
size_t toLen )
{
#if ICONV_USES_CONST_POINTER
const char ** tmpPtr = &fromPtr;
#else
char ** tmpPtr = (char**)&fromPtr;
#endif
return ::iconv (fCDTo, tmpPtr, fromLen, toPtr, &toLen);
}
// ---------------------------------------------------------------------------
// IconvGNUTransService: Constructors and Destructor
// ---------------------------------------------------------------------------
IconvGNUTransService::IconvGNUTransService(MemoryManager* manager)
: IconvGNUWrapper(manager), fUnicodeCP(0)
{
// Try to obtain local (host) characterset from the setlocale
// and through the environment. Do not call setlocale(LC_*, "")!
// Using an empty string instead of NULL, will modify the libc
// behavior.
//
const char* fLocalCP = setlocale (LC_CTYPE, NULL);
if (fLocalCP == NULL || *fLocalCP == 0 ||
strcmp (fLocalCP, "C") == 0 ||
strcmp (fLocalCP, "POSIX") == 0) {
fLocalCP = getenv ("LC_ALL");
if (fLocalCP == NULL) {
fLocalCP = getenv ("LC_CTYPE");
if (fLocalCP == NULL)
fLocalCP = getenv ("LANG");
}
}
if (fLocalCP == NULL || *fLocalCP == 0 ||
strcmp (fLocalCP, "C") == 0 ||
strcmp (fLocalCP, "POSIX") == 0)
fLocalCP = "iso-8859-1"; // fallback locale
else {
const char *ptr = strchr (fLocalCP, '.');
if (ptr == NULL)
fLocalCP = "iso-8859-1"; // fallback locale
else
fLocalCP = ptr + 1;
}
// Select the native unicode characters encoding schema
const IconvGNUEncoding *eptr;
// first - try to use the schema with character size equal to XMLCh, and same endianness
for (eptr = gIconvGNUEncodings; eptr->fSchema; eptr++)
{
if (eptr->fUChSize != sizeof(XMLCh) || eptr->fUBO != BYTE_ORDER)
continue;
// try to create conversion descriptor
iconv_t cd_to = iconv_open(fLocalCP, eptr->fSchema);
if (cd_to == (iconv_t)-1)
continue;
iconv_t cd_from = iconv_open(eptr->fSchema, fLocalCP);
if (cd_from == (iconv_t)-1) {
iconv_close (cd_to);
continue;
}
// got it
setUChSize(eptr->fUChSize);
setUBO(eptr->fUBO);
setCDTo(cd_to);
setCDFrom(cd_from);
fUnicodeCP = eptr->fSchema;
break;
}
if (fUnicodeCP == NULL)
// try to use any known schema
for (eptr = gIconvGNUEncodings; eptr->fSchema; eptr++)
{
// try to create conversion descriptor
iconv_t cd_to = iconv_open(fLocalCP, eptr->fSchema);
if (cd_to == (iconv_t)-1)
continue;
iconv_t cd_from = iconv_open(eptr->fSchema, fLocalCP);
if (cd_from == (iconv_t)-1) {
iconv_close (cd_to);
continue;
}
// got it
setUChSize(eptr->fUChSize);
setUBO(eptr->fUBO);
setCDTo(cd_to);
setCDFrom(cd_from);
fUnicodeCP = eptr->fSchema;
break;
}
if (fUnicodeCP == NULL || cdTo() == (iconv_t)-1 || cdFrom() == (iconv_t)-1)
XMLPlatformUtils::panic (PanicHandler::Panic_NoTransService);
}
IconvGNUTransService::~IconvGNUTransService()
{
if (cdTo() != (iconv_t) -1) {
iconv_close (cdTo());
setCDTo ((iconv_t)-1);
}
if (cdFrom() != (iconv_t) -1) {
iconv_close (cdFrom());
setCDFrom ((iconv_t)-1);
}
}
// ---------------------------------------------------------------------------
// IconvGNUTransService: The virtual transcoding service API
// ---------------------------------------------------------------------------
int IconvGNUTransService::compareIString(const XMLCh* const comp1
, const XMLCh* const comp2)
{
const XMLCh* cptr1 = comp1;
const XMLCh* cptr2 = comp2;
XMLMutexLock lockConverter(&fMutex);
XMLCh c1 = toUpper(*cptr1);
XMLCh c2 = toUpper(*cptr2);
while ( (*cptr1 != 0) && (*cptr2 != 0) ) {
if (c1 != c2)
break;
c1 = toUpper(*(++cptr1));
c2 = toUpper(*(++cptr2));
}
return (int) ( c1 - c2 );
}
int IconvGNUTransService::compareNIString(const XMLCh* const comp1
, const XMLCh* const comp2
, const XMLSize_t maxChars)
{
unsigned int n = 0;
const XMLCh* cptr1 = comp1;
const XMLCh* cptr2 = comp2;
XMLMutexLock lockConverter(&fMutex);
while (true && maxChars)
{
XMLCh c1 = toUpper(*cptr1);
XMLCh c2 = toUpper(*cptr2);
if (c1 != c2)
return (int) (c1 - c2);
// If either ended, then both ended, so equal
if (!*cptr1 || !*cptr2)
break;
cptr1++;
cptr2++;
// Bump the count of chars done. If it equals the count then we
// are equal for the requested count, so break out and return
// equal.
n++;
if (n == maxChars)
break;
}
return 0;
}
const XMLCh* IconvGNUTransService::getId() const
{
return gMyServiceId;
}
XMLLCPTranscoder* IconvGNUTransService::makeNewLCPTranscoder(MemoryManager* manager)
{
return new (manager) IconvGNULCPTranscoder (cdFrom(), cdTo(), uChSize(), UBO(), manager);
}
bool IconvGNUTransService::supportsSrcOfs() const
{
return true;
}
// ---------------------------------------------------------------------------
// IconvGNUTransService: The protected virtual transcoding service API
// ---------------------------------------------------------------------------
XMLTranscoder*
IconvGNUTransService::makeNewXMLTranscoder
(
const XMLCh* const encodingName
, XMLTransService::Codes& resValue
, const XMLSize_t blockSize
, MemoryManager* const manager
)
{
resValue = XMLTransService::UnsupportedEncoding;
IconvGNUTranscoder *newTranscoder = NULL;
char *encLocal = XMLString::transcode(encodingName, manager);
ArrayJanitor<char> janBuf(encLocal, manager);
iconv_t cd_from, cd_to;
cd_from = iconv_open (fUnicodeCP, encLocal);
if (cd_from == (iconv_t)-1) {
resValue = XMLTransService::SupportFilesNotFound;
return NULL;
}
cd_to = iconv_open (encLocal, fUnicodeCP);
if (cd_to == (iconv_t)-1) {
resValue = XMLTransService::SupportFilesNotFound;
iconv_close (cd_from);
return NULL;
}
newTranscoder = new (manager) IconvGNUTranscoder (encodingName,
blockSize,
cd_from, cd_to,
uChSize(), UBO(), manager);
if (newTranscoder)
resValue = XMLTransService::Ok;
return newTranscoder;
}
void IconvGNUTransService::upperCase(XMLCh* const toUpperCase)
{
XMLCh* outPtr = toUpperCase;
XMLMutexLock lockConverter(&fMutex);
while (*outPtr)
{
*outPtr = toUpper(*outPtr);
outPtr++;
}
}
void IconvGNUTransService::lowerCase(XMLCh* const toLowerCase)
{
XMLCh* outPtr = toLowerCase;
XMLMutexLock lockConverter(&fMutex);
while (*outPtr)
{
*outPtr = toLower(*outPtr);
outPtr++;
}
}
// ---------------------------------------------------------------------------
// IconvGNULCPTranscoder: The virtual transcoder API
// ---------------------------------------------------------------------------
XMLSize_t IconvGNULCPTranscoder::calcRequiredSize (const char* const srcText
, MemoryManager* const manager)
{
if (!srcText)
return 0;
size_t len, srcLen;
len = srcLen = strlen(srcText);
if (len == 0)
return 0;
char tmpWideArr[gTempBuffArraySize];
size_t totalLen = 0;
XMLMutexLock lockConverter(&fMutex);
for (;;) {
char *pTmpArr = tmpWideArr;
const char *ptr = srcText + srcLen - len;
size_t rc = iconvFrom(ptr, &len, &pTmpArr, gTempBuffArraySize);
if (rc == (size_t) -1 && errno != E2BIG) {
ThrowXMLwithMemMgr(TranscodingException, XMLExcepts::Trans_BadSrcSeq, manager);
/* return 0; */
}
rc = pTmpArr - (char *) tmpWideArr;
totalLen += rc;
if (rc == 0 || len == 0)
break;
}
return totalLen / uChSize();
}
XMLSize_t IconvGNULCPTranscoder::calcRequiredSize(const XMLCh* const srcText
, MemoryManager* const manager)
{
if (!srcText)
return 0;
XMLSize_t wLent = getWideCharLength(srcText);
if (wLent == 0)
return 0;
char tmpWBuff[gTempBuffArraySize];
char *wBuf = 0;
char *wBufPtr = 0;
ArrayJanitor<char> janBuf(wBufPtr, manager);
size_t len = wLent * uChSize();
if (uChSize() != sizeof(XMLCh) || UBO() != BYTE_ORDER) {
if (len > gTempBuffArraySize) {
wBufPtr = (char*) manager->allocate(len * sizeof(char));//new char[len];
janBuf.reset(wBufPtr, manager);
wBuf = wBufPtr;
} else
wBuf = tmpWBuff;
xmlToMbs (srcText, wBuf, wLent);
} else
wBuf = (char *) srcText;
char tmpBuff[gTempBuffArraySize];
size_t totalLen = 0;
char *srcEnd = wBuf + wLent * uChSize();
XMLMutexLock lockConverter(&fMutex);
for (;;) {
char *pTmpArr = tmpBuff;
const char *ptr = srcEnd - len;
size_t rc = iconvTo(ptr, &len, &pTmpArr, gTempBuffArraySize);
if (rc == (size_t) -1 && errno != E2BIG) {
ThrowXMLwithMemMgr(TranscodingException, XMLExcepts::Trans_BadSrcSeq, manager);
/* return 0; */
}
rc = pTmpArr - tmpBuff;
totalLen += rc;
if (rc == 0 || len == 0)
break;
}
return totalLen;
}
char* IconvGNULCPTranscoder::transcode(const XMLCh* const toTranscode,
MemoryManager* const manager)
{
if (!toTranscode)
return 0;
char* retVal = 0;
if (!*toTranscode) {
retVal = (char*) manager->allocate(sizeof(char));//new char[1];
retVal[0] = 0;
return retVal;
}
XMLSize_t wLent = getWideCharLength(toTranscode);
// Calc needed size.
XMLSize_t neededLen = calcRequiredSize (toTranscode, manager);
if (neededLen == 0)
return 0;
// allocate output buffer
retVal = (char*) manager->allocate((neededLen + 1) * sizeof(char));//new char[neededLen + 1];
// prepare the original
char tmpWBuff[gTempBuffArraySize];
char *wideCharBuf = 0;
char *wBufPtr = 0;
ArrayJanitor<char> janBuf(wBufPtr, manager);
size_t len = wLent * uChSize();
if (uChSize() != sizeof(XMLCh) || UBO() != BYTE_ORDER) {
if (len > gTempBuffArraySize) {
wBufPtr = (char*) manager->allocate(len * sizeof(char));//new char[len];
janBuf.reset(wBufPtr, manager);
wideCharBuf = wBufPtr;
} else
wideCharBuf = tmpWBuff;
xmlToMbs (toTranscode, wideCharBuf, wLent);
} else
wideCharBuf = (char *) toTranscode;
// perform conversion
char* ptr = retVal;
size_t rc;
{
XMLMutexLock lockConverter(&fMutex);
rc = iconvTo(wideCharBuf, &len, &ptr, neededLen);
}
if (rc == (size_t)-1) {
return 0;
}
retVal[neededLen] = 0;
return retVal;
}
bool IconvGNULCPTranscoder::transcode( const XMLCh* const toTranscode
, char* const toFill
, const XMLSize_t maxBytes
, MemoryManager* const manager)
{
// Watch for a couple of pyscho corner cases
if (!toTranscode || !maxBytes) {
toFill[0] = 0;
return true;
}
if (!*toTranscode) {
toFill[0] = 0;
return true;
}
XMLSize_t wLent = getWideCharLength(toTranscode);
if (wLent > maxBytes)
wLent = maxBytes;
// Fill the "unicode" string
char tmpWBuff[gTempBuffArraySize];
char *wideCharBuf = 0;
char *wBufPtr = 0;
ArrayJanitor<char> janBuf(wBufPtr, manager);
size_t len = wLent * uChSize();
if (uChSize() != sizeof(XMLCh) || UBO() != BYTE_ORDER) {
if (len > gTempBuffArraySize) {
wBufPtr = (char*) manager->allocate(len * sizeof(char));//new char[len];
janBuf.reset(wBufPtr, manager);
wideCharBuf = wBufPtr;
} else
wideCharBuf = tmpWBuff;
xmlToMbs (toTranscode, wideCharBuf, wLent);
} else
wideCharBuf = (char *) toTranscode;
// Ok, go ahead and try the transcoding. If it fails, then ...
char *ptr = toFill;
size_t rc;
{
XMLMutexLock lockConverter(&fMutex);
rc = iconvTo(wideCharBuf, &len, &ptr, maxBytes);
}
if (rc == (size_t)-1) {
return false;
}
// Cap it off
*ptr = 0;
return true;
}
XMLCh* IconvGNULCPTranscoder::transcode(const char* const toTranscode,
MemoryManager* const manager)
{
if (!toTranscode)
return 0;
XMLCh* retVal = 0;
if (!*toTranscode) {
retVal = (XMLCh*) manager->allocate(sizeof(XMLCh));//new XMLCh[1];
retVal[0] = 0;
return retVal;
}
XMLSize_t wLent = calcRequiredSize(toTranscode, manager);
if (wLent == 0) {
retVal = (XMLCh*) manager->allocate(sizeof(XMLCh));//new XMLCh[1];
retVal[0] = 0;
return retVal;
}
char tmpWBuff[gTempBuffArraySize];
char *wideCharBuf = 0;
char *wBufPtr = 0;
ArrayJanitor<char> janBuf(wBufPtr, manager);
size_t len = wLent * uChSize();
retVal = (XMLCh*) manager->allocate((wLent + 1) * sizeof(XMLCh));//new XMLCh[wLent + 1];
if (uChSize() != sizeof(XMLCh) || UBO() != BYTE_ORDER) {
if (len > gTempBuffArraySize) {
wBufPtr = (char*) manager->allocate(len * sizeof(char));//new char[len];
janBuf.reset(wBufPtr, manager);
wideCharBuf = wBufPtr;
} else
wideCharBuf = tmpWBuff;
} else
wideCharBuf = (char *) retVal;
size_t flen = strlen(toTranscode);
char *ptr = wideCharBuf;
size_t rc;
{
XMLMutexLock lockConverter(&fMutex);
rc = iconvFrom(toTranscode, &flen, &ptr, len);
}
if (rc == (size_t) -1) {
return NULL;
}
if (uChSize() != sizeof(XMLCh) || UBO() != BYTE_ORDER)
mbsToXML (wideCharBuf, retVal, wLent);
retVal[wLent] = 0x00;
return retVal;
}
bool IconvGNULCPTranscoder::transcode(const char* const toTranscode
, XMLCh* const toFill
, const XMLSize_t maxChars
, MemoryManager* const manager)
{
// Check for a couple of psycho corner cases
if (!toTranscode || !maxChars)
{
toFill[0] = 0;
return true;
}
if (!*toTranscode)
{
toFill[0] = 0;
return true;
}
XMLSize_t wLent = calcRequiredSize(toTranscode);
if (wLent > maxChars)
wLent = maxChars;
char tmpWBuff[gTempBuffArraySize];
char *wideCharBuf = 0;
char *wBufPtr = 0;
ArrayJanitor<char> janBuf(wBufPtr, manager);
size_t len = wLent * uChSize();
if (uChSize() != sizeof(XMLCh) || UBO() != BYTE_ORDER) {
if (len > gTempBuffArraySize) {
wBufPtr = (char*) manager->allocate(len * sizeof(char));//new char[len];
janBuf.reset(wBufPtr, manager);
wideCharBuf = wBufPtr;
} else
wideCharBuf = tmpWBuff;
} else
wideCharBuf = (char *) toFill;
size_t flen = strlen(toTranscode); // wLent;
char *ptr = wideCharBuf;
size_t rc;
{
XMLMutexLock lockConverter(&fMutex);
rc = iconvFrom(toTranscode, &flen, &ptr, len);
}
if (rc == (size_t)-1) {
return false;
}
if (uChSize() != sizeof(XMLCh) || UBO() != BYTE_ORDER)
mbsToXML (wideCharBuf, toFill, wLent);
toFill[wLent] = 0x00;
return true;
}
// ---------------------------------------------------------------------------
// IconvGNULCPTranscoder: Constructors and Destructor
// ---------------------------------------------------------------------------
IconvGNULCPTranscoder::IconvGNULCPTranscoder (iconv_t cd_from,
iconv_t cd_to,
size_t uchsize,
unsigned int ubo,
MemoryManager* manager)
: IconvGNUWrapper (cd_from, cd_to, uchsize, ubo, manager)
{
}
IconvGNULCPTranscoder::~IconvGNULCPTranscoder()
{
}
// ---------------------------------------------------------------------------
// IconvGNUTranscoder: Constructors and Destructor
// ---------------------------------------------------------------------------
IconvGNUTranscoder::IconvGNUTranscoder (const XMLCh* const encodingName
, const XMLSize_t blockSize
, iconv_t cd_from
, iconv_t cd_to
, size_t uchsize
, unsigned int ubo
, MemoryManager* const manager
)
: XMLTranscoder(encodingName, blockSize, manager)
, IconvGNUWrapper (cd_from, cd_to, uchsize, ubo, manager)
{
}
IconvGNUTranscoder::~IconvGNUTranscoder()
{
if (cdTo() != (iconv_t)-1) {
iconv_close (cdTo());
setCDTo ((iconv_t)-1);
}
if (cdFrom() != (iconv_t)-1) {
iconv_close (cdFrom());
setCDFrom ((iconv_t)-1);
}
}
// ---------------------------------------------------------------------------
// IconvGNUTranscoder: Implementation of the virtual transcoder API
// ---------------------------------------------------------------------------
XMLSize_t IconvGNUTranscoder::transcodeFrom
(
const XMLByte* const srcData
, const XMLSize_t srcCount
, XMLCh* const toFill
, const XMLSize_t maxChars
, XMLSize_t& bytesEaten
, unsigned char* const charSizes )
{
// Transcode TO XMLCh
const char* startSrc = (const char*) srcData;
const char* endSrc = (const char*) srcData + srcCount;
char tmpWBuff[gTempBuffArraySize];
char *startTarget = 0;
char *wBufPtr = 0;
ArrayJanitor<char> janBuf(wBufPtr, getMemoryManager());
size_t len = maxChars * uChSize();
if (uChSize() != sizeof(XMLCh) || UBO() != BYTE_ORDER) {
if (len > gTempBuffArraySize) {
wBufPtr = (char*) getMemoryManager()->allocate(len * sizeof(char));//new char[len];
janBuf.reset(wBufPtr, getMemoryManager());
startTarget = wBufPtr;
} else
startTarget = tmpWBuff;
} else
startTarget = (char *) toFill;
// Do character-by-character transcoding
char *orgTarget = startTarget;
size_t srcLen = srcCount;
size_t prevSrcLen = srcLen;
XMLSize_t toReturn = 0;
bytesEaten = 0;
XMLMutexLock lockConverter(&fMutex);
for (size_t cnt = 0; cnt < maxChars && srcLen; cnt++) {
size_t rc = iconvFrom(startSrc, &srcLen, &orgTarget, uChSize());
if (rc == (size_t)-1) {
if (errno == EINVAL && cnt > 0)
break;
if (errno != E2BIG || prevSrcLen == srcLen) {
ThrowXMLwithMemMgr(TranscodingException, XMLExcepts::Trans_BadSrcSeq, getMemoryManager());
}
}
charSizes[cnt] = prevSrcLen - srcLen;
prevSrcLen = srcLen;
bytesEaten += charSizes[cnt];
startSrc = endSrc - srcLen;
toReturn++;
}
if (uChSize() != sizeof(XMLCh) || UBO() != BYTE_ORDER)
mbsToXML (startTarget, toFill, toReturn);
return toReturn;
}
XMLSize_t IconvGNUTranscoder::transcodeTo
(
const XMLCh* const srcData
, const XMLSize_t srcCount
, XMLByte* const toFill
, const XMLSize_t maxBytes
, XMLSize_t& charsEaten
, const UnRepOpts /*options*/ )
{
// Transcode FROM XMLCh
char tmpWBuff[gTempBuffArraySize];
char *startSrc = tmpWBuff;
char *wBufPtr = 0;
ArrayJanitor<char> janBuf(wBufPtr, getMemoryManager());
size_t len = srcCount * uChSize();
if (uChSize() != sizeof(XMLCh) || UBO() != BYTE_ORDER) {
if (len > gTempBuffArraySize) {
wBufPtr = (char*) getMemoryManager()->allocate(len * sizeof(char));//new char[len];
janBuf.reset(wBufPtr, getMemoryManager());
startSrc = wBufPtr;
} else
startSrc = tmpWBuff;
xmlToMbs (srcData, startSrc, srcCount);
} else
startSrc = (char *) srcData;
char* startTarget = (char *) toFill;
size_t srcLen = len;
size_t rc;
{
XMLMutexLock lockConverter(&fMutex);
rc = iconvTo (startSrc, &srcLen, &startTarget, maxBytes);
}
if (rc == (size_t)-1 && errno != E2BIG) {
ThrowXMLwithMemMgr(TranscodingException, XMLExcepts::Trans_BadSrcSeq, getMemoryManager());
}
charsEaten = srcCount - srcLen / uChSize();
return startTarget - (char *)toFill;
}
bool IconvGNUTranscoder::canTranscodeTo
(
const unsigned int toCheck
)
{
//
// If the passed value is really a surrogate embedded together, then
// we need to break it out into its two chars. Else just one.
//
char srcBuf[MAX_UCHSIZE * 2];
unsigned int srcCount = 1;
if (toCheck & 0xFFFF0000) {
XMLCh ch1 = (toCheck >> 10) + 0xD800;
XMLCh ch2 = (toCheck & 0x3FF) + 0xDC00;
xmlToMbs(&ch1, srcBuf, 1);
xmlToMbs(&ch2, srcBuf + uChSize(), 1);
srcCount++;
} else
xmlToMbs((const XMLCh*) &toCheck, srcBuf, 1);
size_t len = srcCount * uChSize();
char tmpBuf[64];
char* pTmpBuf = tmpBuf;
XMLMutexLock lockConverter(&fMutex);
size_t rc = iconvTo( srcBuf, &len, &pTmpBuf, 64);
return (rc != (size_t)-1) && (len == 0);
}
XERCES_CPP_NAMESPACE_END
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