1 files changed, 11 insertions, 1 deletions
diff --git a/crawl-ref/source/files.cc b/crawl-ref/source/files.cc
index b5dc708b08..3650f8899d 100644
--- a/crawl-ref/source/files.cc
+++ b/crawl-ref/source/files.cc
@@ -225,7 +225,6 @@ bool get_dos_compatible_file_name(std::string *fname)
 }
 #endif
 
-
 // Returns the names of all files in the given directory. Note that the
 // filenames returned are relative to the directory.
 std::vector<std::string> get_dir_files(const std::string &dirname)
@@ -268,6 +267,17 @@ std::vector<std::string> get_dir_files(const std::string &dirname)
     return (files);
 }
 
+std::vector<std::string> get_dir_files_ext(const std::string &dir,
+                                           const std::string &ext)
+{
+    const std::vector<std::string> allfiles(get_dir_files(dir));
+    std::vector<std::string> filtered;
+    for (int i = 0, size = allfiles.size(); i < size; ++i)
+        if (ends_with(allfiles[i], ext))
+            filtered.push_back(allfiles[i]);
+    return (filtered);
+}
+
 std::string get_parent_directory(const std::string &filename)
 {
     std::string::size_type pos = filename.rfind(FILE_SEPARATOR);