1// FilePathAutoRename.cpp
2
3#include "StdAfx.h"
4
5#include "../../Common/Defs.h"
6#include "../../Common/IntToString.h"
7
8#include "../../Windows/FileFind.h"
9
10#include "FilePathAutoRename.h"
11
12using namespace NWindows;
13
14static bool MakeAutoName(const FString &name,
15    const FString &extension, unsigned value, FString &path)
16{
17  FChar number[16];
18  ConvertUInt32ToString(value, number);
19  path = name;
20  path += number;
21  path += extension;
22  return NFile::NFind::DoesFileOrDirExist(path);
23}
24
25bool AutoRenamePath(FString &fullProcessedPath)
26{
27  FString path;
28  int dotPos = fullProcessedPath.ReverseFind(FTEXT('.'));
29
30  int slashPos = fullProcessedPath.ReverseFind(FTEXT('/'));
31  #ifdef _WIN32
32  int slash1Pos = fullProcessedPath.ReverseFind(FTEXT('\\'));
33  slashPos = MyMax(slashPos, slash1Pos);
34  #endif
35
36  FString name, extension;
37  if (dotPos > slashPos && dotPos > 0)
38  {
39    name.SetFrom(fullProcessedPath, dotPos);
40    extension = fullProcessedPath.Ptr(dotPos);
41  }
42  else
43    name = fullProcessedPath;
44  name += L'_';
45  unsigned left = 1, right = (1 << 30);
46  while (left != right)
47  {
48    unsigned mid = (left + right) / 2;
49    if (MakeAutoName(name, extension, mid, path))
50      left = mid + 1;
51    else
52      right = mid;
53  }
54  return !MakeAutoName(name, extension, right, fullProcessedPath);
55}
56