#include <http/prescan.hpp>
#include <common/string.hpp>
#include <common/openfile.hpp>
#include <common/pview.hpp>
#include <common/filemap.hpp>
#include <bsptree/btree.hpp>

void PreScan::preScan(const String &pathFileName)
{
  BTree<PureBYTE> mapToken;
	String formatString;
  BYTE readByte;

  FileHandle writeFile("tokens.txt",FileHandle::Write,FileHandle::ShareRead,FileHandle::Overwrite);
  FileHandle scanFile(pathFileName,FileHandle::Read,FileHandle::ShareRead,FileHandle::Open);
	if(!scanFile.isOkay())return;
	FileMap scanMap(scanFile);
	PureViewOfFile scanView(scanMap);

	PureVector<PureBYTE> scanBytes;
  while(scanView.read(readByte))mapToken.insert(PureBYTE(readByte));
	mapToken.treeItems(scanBytes);
	for(int itemIndex=0;itemIndex<scanBytes.size();itemIndex++)
	{
	  ::sprintf(formatString,"'%c'",(BYTE)scanBytes[itemIndex]);
		writeFile.writeLine(formatString);
	}
}