Docs: Group functions

src/functions.liq

@@ -18,6 +18,11 @@
 
 
 
+#
+# METADATA
+#
+
+
 # Builds a metadata object from data passed as JSON
 def build_metadata(json_string) =
     let json.parse (data : {
@@ -48,7 +53,6 @@ def build_metadata(json_string) =
     ]
 end
 
-
 # Reads the track duration
 #   a.) when available from the file
 #   b.) as a fallback from the meta field "track_duration"
@@ -64,7 +68,6 @@ def get_meta_track_duration(meta) =
     end
 end
 
-
 # Posts a playlog to the Engine API
 def post_playlog(api_url, data) =
     json_data = json()
@@ -97,6 +100,11 @@ def post_playlog(api_url, data) =
 end
 
 
+#
+# SOURCE
+#
+
+
 # Evaluate the type of source
 #
 # Returns
@@ -123,7 +131,6 @@ def eval_source_type(source_id) =
     source_type
 end
 
-
 # Evaluates the track type based on the given:
 #   a.) "meta.track_type" passed as annotation, and if not available on
 #   b.) "engine_current_track_type" passed via server function