Decompile 4 functions in Source/File/FileCreation.cpp, Source/File/FileCreation.h, ...

Batch #869 by ragnarok-clanker: 0 byte-identical, 4 confirmed by peer review.

- fn_18255 CreateDirectoryPath: logic confirmed by peer review
- fn_18256 CreateUniqueFileName: logic confirmed by peer review
- fn_18252 FormatOwnedString: logic confirmed by peer review
- fn_03451 StringFormat: logic confirmed by peer review

Reviewed-by: ragnarok-clanker
Adds to the build: Source/File/FileCreation.cpp

Source/File/FileCreation.cpp

@@ -0,0 +1,51 @@
+#include "File/FileCreation.h"
+#include "Utility/Text/FormatString.h"
+
+#include <cstdlib>
+#include <direct.h>
+#include <fstream>
+#include <io.h>
+#include <share.h>
+#include <windows.h>
+
+// FUNCTION: fn_18255
+bool CreateDirectoryPath(std::string path) {
+  if (path.empty()) {
+    return false;
+  }
+
+  std::string::size_type separator = path.find('\\');
+  std::string::size_type end = separator;
+  std::string prefix;
+  std::string remaining(path);
+  while (prefix.size() != path.size()) {
+    prefix = path.substr(0, end);
+    remaining = remaining.substr(separator + 1);
+    separator = remaining.find('\\');
+    end = separator == std::string::npos ? path.size() : end + separator + 1;
+    if (_access(prefix.c_str(), 0) != 0 && _mkdir(prefix.c_str()) != 0) {
+      return false;
+    }
+  }
+  return true;
+}
+
+// FUNCTION: fn_18256
+std::string CreateUniqueFileName(const std::string& filename) {
+  char drive[MAX_PATH]{};
+  char directory[MAX_PATH]{};
+  char name[MAX_PATH]{};
+  char extension[MAX_PATH]{};
+  _splitpath_s(filename.c_str(), drive, sizeof(drive), directory, sizeof(directory), name, sizeof(name), extension, sizeof(extension));
+  std::string parent = FormatOwnedString("%s%s", drive, directory);
+  CreateDirectoryPath(parent);
+
+  int index = 0;
+  std::string result(filename);
+  while (_access(result.c_str(), 0) == 0) {
+    result = FormatOwnedString("%s%s%s(%d)%s", drive, directory, name, ++index, extension);
+  }
+  std::ofstream output(result.c_str(), std::ios::out, _SH_DENYNO);
+  output.close();
+  return result;
+}