Keep only base/extractor.[cc|h].

third_party/lzma/v4_65/files/CPP/7zip/Common/FilePathAutoRename.cpp

-// FilePathAutoRename.cpp
-
-#include "StdAfx.h"
-#include "FilePathAutoRename.h"
-
-#include "Common/Defs.h"
-#include "Common/IntToString.h"
-
-#include "Windows/FileName.h"
-#include "Windows/FileFind.h"
-
-using namespace NWindows;
-
-static bool MakeAutoName(const UString &name,
-    const UString &extension, int value, UString &path)
-{
-  wchar_t number[32];
-  ConvertUInt64ToString(value, number);
-  path = name;
-  path += number;
-  path += extension;
-  return NFile::NFind::DoesFileExist(path);
-}
-
-bool AutoRenamePath(UString &fullProcessedPath)
-{
-  UString path;
-  int dotPos = fullProcessedPath.ReverseFind(L'.');
-
-  int slashPos = fullProcessedPath.ReverseFind(L'/');
-  #ifdef _WIN32
-  int slash1Pos = fullProcessedPath.ReverseFind(L'\\');
-  slashPos = MyMax(slashPos, slash1Pos);
-  #endif
-
-  UString name, extension;
-  if (dotPos > slashPos &&  dotPos > 0)
-  {
-    name = fullProcessedPath.Left(dotPos);
-    extension = fullProcessedPath.Mid(dotPos);
-  }
-  else
-    name = fullProcessedPath;
-  name += L'_';
-  int indexLeft = 1, indexRight = (1 << 30);
-  while (indexLeft != indexRight)
-  {
-    int indexMid = (indexLeft + indexRight) / 2;
-    if (MakeAutoName(name, extension, indexMid, path))
-      indexLeft = indexMid + 1;
-    else
-      indexRight = indexMid;
-  }
-  if (MakeAutoName(name, extension, indexRight, fullProcessedPath))
-    return false;
-  return true;
-}