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Support classes used.

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This commit is contained in:
cata%netscape.com 1999-03-25 17:34:07 +00:00
parent b17d3addb0
commit 94d06b784d
4 changed files with 142 additions and 67 deletions
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45
intl/uconv/ucvlatin/nsCP1253ToUnicode.cpp
View File

@ -17,34 +17,27 @@
* Netscape Communications Corporation. All Rights Reserved.
*/
#include "pratom.h"
#include "nsCP1253ToUnicode.h"
#include "nsUCvLatinDll.h"
//----------------------------------------------------------------------
// Global functions and data [declaration]
static PRUint16 gMappingTable[] = {
static PRUint16 g_CP1253MappingTable[] = {
#include "cp1253.ut"
};
static PRBool gFastTableInit = PR_FALSE;
static PRUnichar gFastTable[256];
static PRInt16 g_CP1253ShiftTable[] = {
1, u1ByteCharset ,
ShiftCell(0,0,0,0,0,0,0,0)
};
//----------------------------------------------------------------------
// Class nsCP1253ToUnicode [implementation]
NS_IMPL_ISUPPORTS(nsCP1253ToUnicode, kIUnicodeDecoderIID);
nsCP1253ToUnicode::nsCP1253ToUnicode()
: nsTableDecoderSupport((uShiftTable*) &g_CP1253ShiftTable,
(uMappingTable*) &g_CP1253MappingTable)
{
NS_INIT_REFCNT();
PR_AtomicIncrement(&g_InstanceCount);
}
nsCP1253ToUnicode::~nsCP1253ToUnicode()
{
PR_AtomicDecrement(&g_InstanceCount);
}
nsresult nsCP1253ToUnicode::CreateInstance(nsISupports ** aResult)
@ -53,22 +46,14 @@ nsresult nsCP1253ToUnicode::CreateInstance(nsISupports ** aResult)
return (*aResult == NULL)? NS_ERROR_OUT_OF_MEMORY : NS_OK;
}
uMappingTable* nsCP1253ToUnicode::GetMappingTable()
{
return (uMappingTable*) &gMappingTable;
}
//----------------------------------------------------------------------
// Subclassing of nsTableDecoderSupport class [implementation]
PRUnichar * nsCP1253ToUnicode::GetFastTable()
NS_IMETHODIMP nsCP1253ToUnicode::GetMaxLength(const char * aSrc,
PRInt32 aSrcLength,
PRInt32 * aDestLength)
{
return gFastTable;
}
PRBool nsCP1253ToUnicode::GetFastTableInitState()
{
return gFastTableInit;
}
void nsCP1253ToUnicode::SetFastTableInit()
{
gFastTableInit = PR_TRUE;
// we are a single byte to Unicode converter, so...
*aDestLength = aSrcLength;
return NS_OK_UDEC_EXACTLENGTH;
}

28
intl/uconv/ucvlatin/nsCP1253ToUnicode.h
View File

@ -20,15 +20,19 @@
#ifndef nsCP1253ToUnicode_h___
#define nsCP1253ToUnicode_h___
#include "ns1ByteToUnicodeBase.h"
#include "nsUCvLatinSupport.h"
//----------------------------------------------------------------------
// Class nsCP1253ToUnicode [declaration]
class nsCP1253ToUnicode : public ns1ByteToUnicodeBase
/**
* A character set converter from CP1253 to Unicode.
*
* @created 24/Mar/1999
* @author Catalin Rotaru [CATA]
*/
class nsCP1253ToUnicode : public nsTableDecoderSupport
{
NS_DECL_ISUPPORTS
public:
/**
@ -36,22 +40,18 @@ public:
*/
nsCP1253ToUnicode();
/**
* Class destructor.
*/
virtual ~nsCP1253ToUnicode();
/**
* Static class constructor.
*/
static nsresult CreateInstance(nsISupports **aResult);
protected:
virtual uMappingTable* GetMappingTable();
virtual PRUnichar* GetFastTable();
virtual PRBool GetFastTableInitState();
virtual void SetFastTableInit();
//--------------------------------------------------------------------
// Subclassing of nsDecoderSupport class [declaration]
NS_IMETHOD GetMaxLength(const char * aSrc, PRInt32 aSrcLength,
PRInt32 * aDestLength);
};
#endif
#endif /* nsCP1253ToUnicode_h___ */

84
intl/uconv/ucvlatin/nsUCvLatinSupport.cpp
View File

@ -420,17 +420,11 @@ nsresult nsDecoderSupport::QueryInterface(REFNSIID aIID,
//----------------------------------------------------------------------
// Interface nsIUnicodeDecoder [implementation]
NS_IMETHODIMP nsDecoderSupport::Convert(PRUnichar * aDest,
PRInt32 aDestOffset,
PRInt32 * aDestLength,
const char * aSrc,
PRInt32 aSrcOffset,
PRInt32 * aSrcLength)
NS_IMETHODIMP nsDecoderSupport::Convert(const char * aSrc,
PRInt32 * aSrcLength,
PRUnichar * aDest,
PRInt32 * aDestLength)
{
// XXX this will go away when interface is cleaned
aSrc += aSrcOffset;
aDest += aDestOffset;
// we do all operations using pointers internally
const char * src = aSrc;
const char * srcEnd = aSrc + *aSrcLength;
@ -498,6 +492,24 @@ NS_IMETHODIMP nsDecoderSupport::Convert(PRUnichar * aDest,
return res;
}
NS_IMETHODIMP nsDecoderSupport::Reset()
{
mBufferLength = 0;
return NS_OK;
}
NS_IMETHODIMP nsDecoderSupport::Convert(PRUnichar * aDest,
PRInt32 aDestOffset,
PRInt32 * aDestLength,
const char * aSrc,
PRInt32 aSrcOffset,
PRInt32 * aSrcLength)
{
// XXX deprecated
return Convert(aSrc + aSrcOffset, aSrcLength, aDest + aDestOffset,
aDestLength);
}
NS_IMETHODIMP nsDecoderSupport::Finish(PRUnichar * aDest, PRInt32 aDestOffset,
PRInt32 * aDestLength)
{
@ -508,17 +520,10 @@ NS_IMETHODIMP nsDecoderSupport::Finish(PRUnichar * aDest, PRInt32 aDestOffset,
NS_IMETHODIMP nsDecoderSupport::Length(const char * aSrc, PRInt32 aSrcOffset,
PRInt32 aSrcLength, PRInt32 * aDestLength)
{
// XXX this will silently go away when interface will change and the right
// method will be called because it's already there!!!
// XXX deprecated
return GetMaxLength(aSrc + aSrcOffset, aSrcLength, aDestLength);
}
NS_IMETHODIMP nsDecoderSupport::Reset()
{
mBufferLength = 0;
return NS_OK;
}
NS_IMETHODIMP nsDecoderSupport::SetInputErrorBehavior(PRInt32 aBehavior)
{
// XXX deprecated
@ -563,3 +568,46 @@ NS_IMETHODIMP nsTableDecoderSupport::ConvertNoBuff(const char * aSrc,
mShiftTable, mMappingTable);
return res;
}
//----------------------------------------------------------------------
// Class nsTablesDecoderSupport [implementation]
nsTablesDecoderSupport::nsTablesDecoderSupport(PRInt32 aTableCount,
uRange * aRangeArray,
uShiftTable ** aShiftTable,
uMappingTable ** aMappingTable)
: nsDecoderSupport()
{
mHelper = NULL;
mTableCount = aTableCount;
mRangeArray = aRangeArray;
mShiftTable = aShiftTable;
mMappingTable = aMappingTable;
}
nsTablesDecoderSupport::~nsTablesDecoderSupport()
{
NS_IF_RELEASE(mHelper);
}
//----------------------------------------------------------------------
// Subclassing of nsDecoderSupport class [implementation]
NS_IMETHODIMP nsTablesDecoderSupport::ConvertNoBuff(const char * aSrc,
PRInt32 * aSrcLength,
PRUnichar * aDest,
PRInt32 * aDestLength)
{
nsresult res;
if (mHelper == nsnull) {
res = nsComponentManager::CreateInstance(kUnicodeDecodeHelperCID, NULL,
kIUnicodeDecodeHelperIID, (void**) & mHelper);
if (NS_FAILED(res)) return NS_ERROR_UDEC_NOHELPER;
}
res = mHelper->ConvertByTables(aSrc, aSrcLength, aDest, aDestLength,
mTableCount, mRangeArray, mShiftTable, mMappingTable);
return res;
}

52
intl/uconv/ucvlatin/nsUCvLatinSupport.h
View File

@ -234,12 +234,16 @@ public:
*/
virtual ~nsDecoderSupport();
NS_IMETHOD GetMaxLength(const char * aSrc, PRInt32 aSrcLength,
PRInt32 * aDestLength) = 0;
//--------------------------------------------------------------------
// Interface nsIUnicodeDecoder [declaration]
NS_IMETHOD Convert(const char * aSrc, PRInt32 * aSrcLength,
PRUnichar * aDest, PRInt32 * aDestLength);
NS_IMETHOD GetMaxLength(const char * aSrc, PRInt32 aSrcLength,
PRInt32 * aDestLength) = 0;
NS_IMETHOD Reset();
// XXX deprecated methods - to go away when interface change.
NS_IMETHOD Convert(PRUnichar * aDest, PRInt32 aDestOffset,
PRInt32 * aDestLength, const char * aSrc, PRInt32 aSrcOffset,
PRInt32 * aSrcLength);
@ -247,7 +251,6 @@ public:
PRInt32 * aDestLength);
NS_IMETHOD Length(const char * aSrc, PRInt32 aSrcOffset,
PRInt32 aSrcLength, PRInt32 * aDestLength);
NS_IMETHOD Reset();
NS_IMETHOD SetInputErrorBehavior(PRInt32 aBehavior);
};
@ -268,7 +271,7 @@ public:
* Class constructor.
*/
nsTableDecoderSupport(uShiftTable * aShiftTable,
uMappingTable * aMappingTable);
uMappingTable * aMappingTable);
/**
* Class destructor.
@ -288,4 +291,43 @@ protected:
PRUnichar * aDest, PRInt32 * aDestLength);
};
//----------------------------------------------------------------------
// Class nsTablesDecoderSupport [declaration]
/**
* Support class for a multi-table-driven Unicode decoder.
*
* @created 24/Mar/1999
* @author Catalin Rotaru [CATA]
*/
class nsTablesDecoderSupport : public nsDecoderSupport
{
public:
/**
* Class constructor.
*/
nsTablesDecoderSupport(PRInt32 aTableCount, uRange * aRangeArray,
uShiftTable ** aShiftTable, uMappingTable ** aMappingTable);
/**
* Class destructor.
*/
virtual ~nsTablesDecoderSupport();
protected:
nsIUnicodeDecodeHelper * mHelper; // decoder helper object
PRInt32 mTableCount;
uRange * mRangeArray;
uShiftTable ** mShiftTable;
uMappingTable ** mMappingTable;
//--------------------------------------------------------------------
// Subclassing of nsDecoderSupport class [declaration]
NS_IMETHOD ConvertNoBuff(const char * aSrc, PRInt32 * aSrcLength,
PRUnichar * aDest, PRInt32 * aDestLength);
};
#endif /* nsUCvLatinSupport_h___ */