commands: use real Filter type

src/commands/queue/playlistfind.rs

@@ -2,6 +2,7 @@ use crate::{
     commands::{
         Command, RequestParserError, RequestParserResult, ResponseAttributes, ResponseParserError,
     },
+    filter::parse_filter,
     Request,
 };
 
@@ -12,8 +13,7 @@ impl Command for PlaylistFind {
     const COMMAND: &'static str = "playlistfind";
 
     fn parse_request(mut parts: std::str::SplitWhitespace<'_>) -> RequestParserResult<'_> {
-        let filter = parts.next().ok_or(RequestParserError::UnexpectedEOF)?;
-        let filter = filter.to_string();
+        let filter = parse_filter(&mut parts)?;
 
         let mut sort_or_window = parts.next();
         let mut sort = None;

src/commands/queue/playlistsearch.rs

@@ -2,6 +2,7 @@ use crate::{
     commands::{
         Command, RequestParserError, RequestParserResult, ResponseAttributes, ResponseParserError,
     },
+    filter::parse_filter,
     Request,
 };
 
@@ -12,10 +13,7 @@ impl Command for PlaylistSearch {
     const COMMAND: &'static str = "playlistsearch";
 
     fn parse_request(mut parts: std::str::SplitWhitespace<'_>) -> RequestParserResult<'_> {
-        let filter = parts.next().ok_or(RequestParserError::UnexpectedEOF)?;
-        let filter = filter
-            .parse()
-            .map_err(|_| RequestParserError::SyntaxError(0, filter.to_string()))?;
+        let filter = parse_filter(&mut parts)?;
 
         let mut sort_or_window = parts.next();
         let mut sort = None;