1 files changed, 22 insertions, 6 deletions

diff --git a/src/lib.rs b/src/lib.rs
index 382ff63..af9ef72 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -47,19 +47,35 @@ impl ReferenceEntry
     /// - The reference entry file data is invalid.
     pub fn get_function(function_name: &str) -> Result<Self, ReferenceEntryError>
     {
-        let function_file = GL4_DIR
+        let xml_files = GL4_DIR
             .files()
-            .find_map(|file| {
-                if file.path().extension()?.as_bytes() != b"xml" {
-                    return None;
-                }
+            .filter(|file| {
+                file.path()
+                    .extension()
+                    .map_or_else(|| false, |extension| extension.as_bytes() == b"xml")
+            })
+            .collect::<Vec<_>>();
 
-                if function_name.starts_with(file.path().file_stem()?.to_str()?) {
+        let function_file = xml_files
+            .iter()
+            .find_map(|file| {
+                if file.path().file_stem()?.to_str()? == function_name {
                     Some(file)
                 } else {
                     None
                 }
             })
+            .or_else(|| {
+                xml_files.iter().find_map(|file| {
+                    let file_stem = file.path().file_stem()?.to_str()?;
+
+                    if function_name.starts_with(file_stem) {
+                        Some(file)
+                    } else {
+                        None
+                    }
+                })
+            })
             .ok_or_else(|| ReferenceEntryError::NoFileFound(function_name.to_string()))?;
 
         let function_ref_content = function_file.contents();