Support Yrc lyrics

Author: Mx-Iris

Sources/LyricsService/JSONModel/NetEase/NetEaseResponseSingleLyrics.swift

@@ -14,7 +14,7 @@ struct NetEaseResponseSingleLyrics: Decodable {
     let klyric: Lyric?
     let tlyric: Lyric?
     let lyricUser: User?
-    
+    let yrc: Lyric?
     /*
     let sgc: Bool
     let sfy: Bool

Sources/LyricsService/Parser/NetEaseKLyricParser.swift

@@ -55,4 +55,47 @@ extension Lyrics {
 
         self.init(lines: lines, idTags: idTags)
     }
+    
+    convenience init?(netEaseYrcContent content: String) {
+        var idTags: [IDTagKey: String] = [:]
+        id3TagRegex.matches(in: content).forEach { match in
+            if let key = match[1]?.content.trimmingCharacters(in: .whitespaces),
+                let value = match[2]?.content.trimmingCharacters(in: .whitespaces),
+                !key.isEmpty,
+                !value.isEmpty {
+                idTags[.init(key)] = value
+            }
+        }
+        
+        let lines: [LyricsLine] = krcLineRegex.matches(in: content).map { match in
+            let timeTagStr = match[1]!.content
+            let timeTag = TimeInterval(timeTagStr)! / 1000
+            
+            let durationStr = match[2]!.content
+            let duration = TimeInterval(durationStr)! / 1000
+            
+            var lineContent = ""
+            var attachment = LyricsLine.Attachments.InlineTimeTag(tags: [.init(index: 0, time: 0)], duration: duration)
+            var dt = 0.0
+            netEaseYrcInlineTagRegex.matches(in: content, range: match[3]!.range).forEach { m in
+                let t1 = Int(m[1]!.content)! - Int(timeTagStr)!
+                let t2 = Int(m[2]!.content)!
+                let t = TimeInterval(t1 + t2) / 1000
+                let fragment = m[3]!.content
+                let prevCount = lineContent.count
+                lineContent += fragment
+                if lineContent.count > prevCount {
+                    attachment.tags.append(.init(index: lineContent.count, time: t))
+                }
+            }
+            
+            let att = LyricsLine.Attachments(attachments: [.timetag: attachment])
+            return LyricsLine(content: lineContent, position: timeTag, attachments: att)
+        }
+        guard !lines.isEmpty else {
+            return nil
+        }
+        
+        self.init(lines: lines, idTags: idTags)
+    }
 }