2 files changed, 13 insertions, 1 deletions

diff --git a/src/common/file_util.cpp b/src/common/file_util.cpp
index 1bc291cf9..b8dd92b65 100644
--- a/src/common/file_util.cpp
+++ b/src/common/file_util.cpp
@@ -826,7 +826,7 @@ std::string_view GetPathWithoutTop(std::string_view path) {
     }
 
     while (path[0] == '\\' || path[0] == '/') {
-        path.remove_suffix(1);
+        path.remove_prefix(1);
         if (path.empty()) {
             return path;
         }
@@ -870,6 +870,15 @@ std::string_view RemoveTrailingSlash(std::string_view path) {
     return path;
 }
 
+std::string SanitizePath(std::string_view path_) {
+    std::string path(path_);
+    std::replace(path.begin(), path.end(), '\\', '/');
+    path.erase(std::unique(path.begin(), path.end(),
+                           [](char c1, char c2) { return c1 == '/' && c2 == '/'; }),
+               path.end());
+    return std::string(RemoveTrailingSlash(path));
+}
+
 IOFile::IOFile() {}
 
 IOFile::IOFile(const std::string& filename, const char openmode[], int flags) {
diff --git a/src/common/file_util.h b/src/common/file_util.h
index abfa79eae..bc9272d89 100644
--- a/src/common/file_util.h
+++ b/src/common/file_util.h
@@ -178,6 +178,9 @@ std::vector<T> SliceVector(const std::vector<T>& vector, size_t first, size_t la
     return std::vector<T>(vector.begin() + first, vector.begin() + first + last);
 }
 
+// Removes trailing slash, makes all '\\' into '/', and removes duplicate '/'.
+std::string SanitizePath(std::string_view path);
+
 // simple wrapper for cstdlib file functions to
 // hopefully will make error checking easier
 // and make forgetting an fclose() harder