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Changes to parser to allow less copying. Use of the new nsSliding[Sub]String classes so that tokens can hold substrings that keep references into the scanner buffer. Cleaned up token interface and general string usage. r=harishd,heikki sr=jst

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git-svn-id: svn://10.0.0.236/trunk@83553 18797224-902f-48f8-a5cc-f745e15eee43
This commit is contained in:
vidur%netscape.com
2000-12-12 21:58:14 +00:00
parent 33d6574ffe
commit 3e62b3f9f3
129 changed files with 5425 additions and 3603 deletions
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52
mozilla/string/src/nsSharedBufferList.cpp
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@@ -23,9 +23,29 @@
*/
#include "nsSharedBufferList.h"
#ifndef nsAlgorithm_h___
#include "nsAlgorithm.h"
// for |copy_string|
#include <new.h>
#endif
ptrdiff_t
nsSharedBufferList::Position::Distance( const Position& aStart, const Position& aEnd )
{
ptrdiff_t result = 0;
if ( aStart.mBuffer == aEnd.mBuffer )
result = aEnd.mPosInBuffer - aStart.mPosInBuffer;
else
{
result = aStart.mBuffer->DataEnd() - aStart.mPosInBuffer;
for ( Buffer* b = aStart.mBuffer->mNext; b != aEnd.mBuffer; b = b->mNext )
result += b->DataLength();
result += aEnd.mPosInBuffer - aEnd.mBuffer->DataStart();
}
return result;
}
void
@@ -48,36 +68,6 @@ nsSharedBufferList::~nsSharedBufferList()
}
nsSharedBufferList::Buffer*
nsSharedBufferList::NewSingleAllocationBuffer( const PRUnichar* aData, PRUint32 aDataLength, PRUint32 aAdditionalSpace )
{
size_t object_size = ((sizeof(Buffer) + sizeof(PRUnichar) - 1) / sizeof(PRUnichar)) * sizeof(PRUnichar);
PRUint32 buffer_length = aDataLength + aAdditionalSpace;
size_t buffer_size = size_t(buffer_length) * sizeof(PRUnichar);
void* object_ptr = operator new(object_size + buffer_size);
if ( object_ptr )
{
typedef PRUnichar* PRUnichar_ptr;
PRUnichar* buffer_ptr = PRUnichar_ptr(NS_STATIC_CAST(unsigned char*, object_ptr) + object_size);
if ( aDataLength )
{
PRUnichar* toBegin = buffer_ptr;
copy_string(aData, aData+aDataLength, toBegin);
}
return new (object_ptr) Buffer(buffer_ptr, buffer_ptr+aDataLength, buffer_ptr, buffer_ptr+buffer_length, PR_TRUE);
}
return 0;
}
nsSharedBufferList::Buffer*
nsSharedBufferList::NewWrappingBuffer( PRUnichar* aDataStart, PRUnichar* aDataEnd, PRUnichar* aStorageEnd )
{
return new Buffer(aDataStart, aDataEnd, aDataStart, aStorageEnd);
}
void
nsSharedBufferList::LinkBuffer( Buffer* aPrevBuffer, Buffer* aNewBuffer, Buffer* aNextBuffer )