mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-11-08 20:47:44 +00:00
1b83407ce9
This patch was automatically generated by the following script:
#!/bin/bash
# Command to convert PRUnichar to char16_t
function convert() {
echo "Converting $1 to $2..."
find . ! -wholename "*nsprpub*" \
! -wholename "*security/nss*" \
! -wholename "*modules/libmar*" \
! -wholename "*/.hg*" \
! -wholename "obj-ff-dbg*" \
! -name prtypes.h \
! -name Char16.h \
-type f \
\( -iname "*.cpp" \
-o -iname "*.h" \
-o -iname "*.c" \
-o -iname "*.cc" \
-o -iname "*.idl" \
-o -iname "*.ipdl" \
-o -iname "*.ipdlh" \
-o -iname "*.mm" \) | \
xargs -n 1 sed -i -e "s/\b$1\b/$2/g"
}
convert PRUnichar char16_t
311 lines
9.4 KiB
C++
311 lines
9.4 KiB
C++
/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* This Source Code Form is subject to the terms of the Mozilla Public
|
|
* License, v. 2.0. If a copy of the MPL was not distributed with this
|
|
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
|
|
/**
|
|
* A character set converter from Unicode to GBK.
|
|
*
|
|
*
|
|
* @created 08/Sept/1999
|
|
* @author Yueheng Xu, Yueheng.Xu@intel.com
|
|
* Revision History
|
|
* 04/Oct/1999. Yueheng Xu: used table gUnicodeToGBKTable[0x5200] to make
|
|
* Unicode to GB mapping fast
|
|
*/
|
|
|
|
#include "nsUnicodeToGBK.h"
|
|
#include "gbku.h"
|
|
#include "uconvutil.h"
|
|
#include "nsCharTraits.h"
|
|
|
|
//-------------------------------------------------------------
|
|
// Global table initialization function defined in gbku.h
|
|
//-------------------------------------------------------------
|
|
|
|
//-----------------------------------------------------------------------
|
|
// Private class used by nsUnicodeToGB18030 and nsUnicodeToGB18030Font0
|
|
// nsUnicodeToGB18030Uniq2Bytes
|
|
//-----------------------------------------------------------------------
|
|
static const uint16_t g_uf_gb18030_2bytes[] = {
|
|
#include "gb18030uniq2b.uf"
|
|
};
|
|
class nsUnicodeToGB18030Uniq2Bytes : public nsTableEncoderSupport
|
|
{
|
|
public:
|
|
nsUnicodeToGB18030Uniq2Bytes()
|
|
: nsTableEncoderSupport(u2BytesCharset,
|
|
(uMappingTable*) &g_uf_gb18030_2bytes, 2) {}
|
|
protected:
|
|
};
|
|
//-----------------------------------------------------------------------
|
|
// Private class used by nsUnicodeToGB18030
|
|
// nsUnicodeTo4BytesGB18030
|
|
//-----------------------------------------------------------------------
|
|
static const uint16_t g_uf_gb18030_4bytes[] = {
|
|
#include "gb180304bytes.uf"
|
|
};
|
|
class nsUnicodeTo4BytesGB18030 : public nsTableEncoderSupport
|
|
{
|
|
public:
|
|
nsUnicodeTo4BytesGB18030()
|
|
: nsTableEncoderSupport(u4BytesGB18030Charset,
|
|
(uMappingTable*) &g_uf_gb18030_4bytes, 4) {}
|
|
protected:
|
|
};
|
|
//-----------------------------------------------------------------------
|
|
// Private class used by nsUnicodeToGBK
|
|
// nsUnicodeToGBKUniq2Bytes
|
|
//-----------------------------------------------------------------------
|
|
static const uint16_t g_uf_gbk_2bytes[] = {
|
|
#include "gbkuniq2b.uf"
|
|
};
|
|
class nsUnicodeToGBKUniq2Bytes : public nsTableEncoderSupport
|
|
{
|
|
public:
|
|
nsUnicodeToGBKUniq2Bytes()
|
|
: nsTableEncoderSupport(u2BytesCharset,
|
|
(uMappingTable*) &g_uf_gbk_2bytes, 2) {}
|
|
protected:
|
|
};
|
|
//-----------------------------------------------------------------------
|
|
// nsUnicodeToGB18030
|
|
//-----------------------------------------------------------------------
|
|
void nsUnicodeToGB18030::CreateExtensionEncoder()
|
|
{
|
|
mExtensionEncoder = new nsUnicodeToGB18030Uniq2Bytes();
|
|
}
|
|
void nsUnicodeToGB18030::Create4BytesEncoder()
|
|
{
|
|
m4BytesEncoder = new nsUnicodeTo4BytesGB18030();
|
|
}
|
|
|
|
bool nsUnicodeToGB18030::EncodeSurrogate(
|
|
char16_t aSurrogateHigh,
|
|
char16_t aSurrogateLow,
|
|
char* aOut)
|
|
{
|
|
if( NS_IS_HIGH_SURROGATE(aSurrogateHigh) &&
|
|
NS_IS_LOW_SURROGATE(aSurrogateLow) )
|
|
{
|
|
// notice that idx does not include the 0x10000
|
|
uint32_t idx = ((aSurrogateHigh - (char16_t)0xD800) << 10 ) |
|
|
(aSurrogateLow - (char16_t) 0xDC00);
|
|
|
|
unsigned char *out = (unsigned char*) aOut;
|
|
// notice this is from 0x90 for supplment planes
|
|
out[0] = (idx / (10*126*10)) + 0x90;
|
|
idx %= (10*126*10);
|
|
out[1] = (idx / (10*126)) + 0x30;
|
|
idx %= (10*126);
|
|
out[2] = (idx / (10)) + 0x81;
|
|
out[3] = (idx % 10) + 0x30;
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
//----------------------------------------------------------------------
|
|
// Class nsUnicodeToGBK [implementation]
|
|
|
|
nsUnicodeToGBK::nsUnicodeToGBK(uint32_t aMaxLength) :
|
|
nsEncoderSupport(aMaxLength)
|
|
{
|
|
mExtensionEncoder = nullptr;
|
|
m4BytesEncoder = nullptr;
|
|
mSurrogateHigh = 0;
|
|
}
|
|
void nsUnicodeToGBK::CreateExtensionEncoder()
|
|
{
|
|
mExtensionEncoder = new nsUnicodeToGBKUniq2Bytes();
|
|
}
|
|
void nsUnicodeToGBK::Create4BytesEncoder()
|
|
{
|
|
m4BytesEncoder = nullptr;
|
|
}
|
|
bool nsUnicodeToGBK::TryExtensionEncoder(
|
|
char16_t aChar,
|
|
char* aOut,
|
|
int32_t *aOutLen
|
|
)
|
|
{
|
|
if( NS_IS_HIGH_SURROGATE(aChar) ||
|
|
NS_IS_LOW_SURROGATE(aChar) )
|
|
{
|
|
// performance tune for surrogate characters
|
|
return false;
|
|
}
|
|
if(! mExtensionEncoder )
|
|
CreateExtensionEncoder();
|
|
if(mExtensionEncoder)
|
|
{
|
|
int32_t len = 1;
|
|
nsresult res = NS_OK;
|
|
res = mExtensionEncoder->Convert(&aChar, &len, aOut, aOutLen);
|
|
if(NS_SUCCEEDED(res) && (*aOutLen > 0))
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
bool nsUnicodeToGBK::Try4BytesEncoder(
|
|
char16_t aChar,
|
|
char* aOut,
|
|
int32_t *aOutLen
|
|
)
|
|
{
|
|
if( NS_IS_HIGH_SURROGATE(aChar) ||
|
|
NS_IS_LOW_SURROGATE(aChar) )
|
|
{
|
|
// performance tune for surrogate characters
|
|
return false;
|
|
}
|
|
if(! m4BytesEncoder )
|
|
Create4BytesEncoder();
|
|
if(m4BytesEncoder)
|
|
{
|
|
int32_t len = 1;
|
|
nsresult res = NS_OK;
|
|
res = m4BytesEncoder->Convert(&aChar, &len, aOut, aOutLen);
|
|
NS_ASSERTION(NS_FAILED(res) || ((1 == len) && (4 == *aOutLen)),
|
|
"unexpect conversion length");
|
|
if(NS_SUCCEEDED(res) && (*aOutLen > 0))
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
bool nsUnicodeToGBK::EncodeSurrogate(
|
|
char16_t aSurrogateHigh,
|
|
char16_t aSurrogateLow,
|
|
char* aOut)
|
|
{
|
|
return false; // GBK cannot encode Surrogate, let the subclass encode it.
|
|
}
|
|
|
|
NS_IMETHODIMP nsUnicodeToGBK::ConvertNoBuff(
|
|
const char16_t * aSrc,
|
|
int32_t * aSrcLength,
|
|
char * aDest,
|
|
int32_t * aDestLength)
|
|
{
|
|
int32_t iSrcLength = 0;
|
|
int32_t iDestLength = 0;
|
|
char16_t unicode;
|
|
nsresult res = NS_OK;
|
|
while (iSrcLength < *aSrcLength )
|
|
{
|
|
unicode = *aSrc;
|
|
//if unicode's hi byte has something, it is not ASCII, must be a GB
|
|
if(IS_ASCII(unicode))
|
|
{
|
|
// this is an ASCII
|
|
*aDest = CAST_UNICHAR_TO_CHAR(*aSrc);
|
|
aDest++; // increment 1 byte
|
|
iDestLength +=1;
|
|
} else {
|
|
char byte1, byte2;
|
|
if(mUtil.UnicodeToGBKChar( unicode, false, &byte1, &byte2))
|
|
{
|
|
// make sure we still have 2 bytes for output first
|
|
if(iDestLength+2 > *aDestLength)
|
|
{
|
|
res = NS_OK_UENC_MOREOUTPUT;
|
|
break;
|
|
}
|
|
aDest[0] = byte1;
|
|
aDest[1] = byte2;
|
|
aDest += 2; // increment 2 bytes
|
|
iDestLength +=2;
|
|
} else {
|
|
int32_t aOutLen = 2;
|
|
// make sure we still have 2 bytes for output first
|
|
if(iDestLength+2 > *aDestLength)
|
|
{
|
|
res = NS_OK_UENC_MOREOUTPUT;
|
|
break;
|
|
}
|
|
// we cannot map in the common mapping. Let's try to
|
|
// call the delegated 2 byte converter for the gbk or gb18030
|
|
// unique 2 byte mapping
|
|
if(TryExtensionEncoder(unicode, aDest, &aOutLen))
|
|
{
|
|
iDestLength += aOutLen;
|
|
aDest += aOutLen;
|
|
} else {
|
|
// make sure we still have 4 bytes for output first
|
|
if(iDestLength+4 > *aDestLength)
|
|
{
|
|
res = NS_OK_UENC_MOREOUTPUT;
|
|
break;
|
|
}
|
|
// we still cannot map. Let's try to
|
|
// call the delegated GB18030 4 byte converter
|
|
aOutLen = 4;
|
|
if( NS_IS_HIGH_SURROGATE(unicode) )
|
|
{
|
|
if((iSrcLength+1) < *aSrcLength ) {
|
|
if(EncodeSurrogate(aSrc[0],aSrc[1], aDest)) {
|
|
// since we got a surrogate pair, we need to increment src.
|
|
iSrcLength++ ;
|
|
aSrc++;
|
|
iDestLength += aOutLen;
|
|
aDest += aOutLen;
|
|
} else {
|
|
// only get a high surrogate, but not a low surrogate
|
|
res = NS_ERROR_UENC_NOMAPPING;
|
|
iSrcLength++; // include length of the unmapped character
|
|
break;
|
|
}
|
|
} else {
|
|
mSurrogateHigh = aSrc[0];
|
|
break; // this will go to afterwhileloop
|
|
}
|
|
} else {
|
|
if( NS_IS_LOW_SURROGATE(unicode) )
|
|
{
|
|
if(NS_IS_HIGH_SURROGATE(mSurrogateHigh)) {
|
|
if(EncodeSurrogate(mSurrogateHigh, aSrc[0], aDest)) {
|
|
iDestLength += aOutLen;
|
|
aDest += aOutLen;
|
|
} else {
|
|
// only get a high surrogate, but not a low surrogate
|
|
res = NS_ERROR_UENC_NOMAPPING;
|
|
iSrcLength++; // include length of the unmapped character
|
|
break;
|
|
}
|
|
} else {
|
|
// only get a low surrogate, but not a low surrogate
|
|
res = NS_ERROR_UENC_NOMAPPING;
|
|
iSrcLength++; // include length of the unmapped character
|
|
break;
|
|
}
|
|
} else {
|
|
if(Try4BytesEncoder(unicode, aDest, &aOutLen))
|
|
{
|
|
NS_ASSERTION((aOutLen == 4), "we should always generate 4 bytes here");
|
|
iDestLength += aOutLen;
|
|
aDest += aOutLen;
|
|
} else {
|
|
res = NS_ERROR_UENC_NOMAPPING;
|
|
iSrcLength++; // include length of the unmapped character
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
iSrcLength++ ; // Each unicode char just count as one in char16_t string;
|
|
mSurrogateHigh = 0;
|
|
aSrc++;
|
|
if ( iDestLength >= (*aDestLength) && (iSrcLength < *aSrcLength) )
|
|
{
|
|
res = NS_OK_UENC_MOREOUTPUT;
|
|
break;
|
|
}
|
|
}
|
|
//afterwhileloop:
|
|
*aDestLength = iDestLength;
|
|
*aSrcLength = iSrcLength;
|
|
return res;
|
|
}
|