feat: add is-type convenience definition.

Jellyfin.Plugin.SmartPlaylist/Lisp/Interpreter.cs

@@ -141,7 +141,7 @@ namespace Jellyfin.Plugin.SmartPlaylist.Lisp {
             return args.Last();
         }
         private static Expression _haskeys(IEnumerable<Expression> args) {
-            Object o = (Object) args.First();
+            Object o = new Object(((IInner) args.First()).Inner());
             foreach (var e in args.Skip(1)) {
                 String s = (String) e;
                 PropertyInfo? pi = o.Value().GetType().GetProperty(s.Value());

Jellyfin.Plugin.SmartPlaylist/PluginConfiguration.cs

@@ -10,7 +10,7 @@ namespace Jellyfin.Plugin.SmartPlaylist {
               (define is-genre-exact (lambda (g g-list) (find g g-list)))
               (define genre-list (lambda nil (let (_g (getitems item "Genres")) (if (null _g) nil (car _g)))))
               (define is-favorite (lambda nil (invoke item "IsFavoriteOrLiked" (list user)))))
-
+              (define is-type (lambda (x) (and (haskeys item "GetClientTypeName") (invoke (invoke item "GetClientTypeName" nil) "Equals" (list x)))))
 
               (define is-favourite is-favorite)
             """;

Jellyfin.Plugin.SmartPlaylist/build.yaml

@@ -22,10 +22,10 @@ changelog: |
     the filter expressions.
 
   **Breaking Changes:**
-  - The lisp interpreter will no only detect strings in double quotes (`"`).
+  - The lisp interpreter will now only detect strings in double quotes (`"`).
   - The interpreter will also not allow specifying lists without quoting them.
     `(1 2 3)` ... used to work but will no longer, replace by either specifying
-    the list as `(list 1 2 3)` or (quote (1 2 3)).
+    the list as `(list 1 2 3)` or `(quote (1 2 3))`.
 
   ## v0.1.1.0
   - Initial Alpha release.

README.md

@@ -2,6 +2,11 @@
 
 Smart playlists with Lisp filter engine.
 
+This readme contains instructions for the most recent changes in
+the development branch (`main`). To view the file appropriate
+for your version select the tag corresponding to your version.
+The latest version is [v0.2.0.0](https://gitea.redxef.at/redxef/jellyfin-smart-playlist/src/tag/v0.2.0.0).
+
 ## How to use
 
 After [installing](#installation) the plugin and restarting Jellyfin
@@ -92,6 +97,9 @@ to: `(is-favourite)`.
   allowed, the example filter would match the genre "Nu-Metal" (`(is-genre "metal" (genre-list))`)
 - **is-genre-exact**: the same as `is-genre`, but does not match paritally
 - **is-favorite**: matches a favorite item (`(is-favorite)`)
+- **is-type**: matches the type of item look at
+  [BaseItemKind.cs](https://github.com/jellyfin/jellyfin/blob/master/Jellyfin.Data/Enums/BaseItemKind.cs)
+  for a list of items. The plugin has enabled support for `Audio, MusicAlbum, Playlist` (`(is-type "Audio")`)
 
 ### Filename