Resolving entry names

Some more string manipulation fluff

src/poly/string.cc

@@ -126,4 +126,28 @@ std::string fix_path_separators(const std::string& source, char new_sep) {
   return dest;
 }
 
+std::string find_name_from_path(const std::string& path)
+{
+  std::string name(path);
+
+  if (!path.empty()) {
+    std::string::size_type from(std::string::npos);
+    if (path.back() == '\\') {
+      from = path.size() - 2;
+    }
+
+    auto pos(path.find_last_of('\\', from));
+    if (pos != std::string::npos) {
+      if (from == std::string::npos) {
+        name = path.substr(pos + 1);
+      } else {
+        auto len(from - pos);
+        name = path.substr(pos + 1, len);
+      }
+    }
+  }
+
+  return name;
+}
+
 }  // namespace poly

src/poly/string.h

@@ -48,6 +48,9 @@ std::wstring fix_path_separators(const std::wstring& source,
 std::string fix_path_separators(const std::string& source,
                                 char new_sep = poly::path_separator);
 
+// Find the top directory name or filename from a path
+std::string find_name_from_path(const std::string& path);
+
 }  // namespace poly
 
 #endif  // POLY_STRING_H_

src/xenia/kernel/fs/entry.cc

@@ -23,8 +23,7 @@ Entry::Entry(Device* device, const std::string& path)
     : device_(device), path_(path) {
   assert_not_null(device);
   absolute_path_ = device->path() + path;
-  // TODO(benvanik): last index of \, unless \ at end, then before that
-  name_ = "";
+  name_ = poly::find_name_from_path(path);
 }
 
 Entry::~Entry() = default;