Fix comment format

command.go

@@ -439,14 +439,16 @@ func (c Command) defineCommands() {
 	c.define("lyric_delay_increase", func() {
 		err := gomu.playingBar.delayLyric(500)
 		if err != nil {
-			logError(err)
+			errorPopup(err)
+			gomu.app.Draw()
 		}
 	})
 
 	c.define("lyric_delay_decrease", func() {
 		err := gomu.playingBar.delayLyric(-500)
 		if err != nil {
-			logError(err)
+			errorPopup(err)
+			gomu.app.Draw()
 		}
 	})
 

lyric/lrc.go

@@ -1,5 +1,5 @@
-//Package lyric package download lyrics from different website and embed them into mp3 file.
-//lrc file is used to parse lrc file into subtitle. Similar to subtitles package
+// Package lyric package download lyrics from different website and embed them into mp3 file.
+// lrc file is used to parse lrc file into subtitle. Similar to subtitles package
 package lyric
 
 import (
@@ -35,6 +35,7 @@ func looksLikeLRC(s string) bool {
 func NewFromLRC(s string) (res subtitles.Subtitle, err error) {
 	endString := "[158:00.00]The End" + eol
 	s = s + endString
+	s = cleanLRC(s)
 	r1 := regexp.MustCompile(`(?U)^\[[0-9].*\]`)
 	lines := strings.Split(s, "\n")
 	outSeq := 1
@@ -121,3 +122,14 @@ func parseLrcTime(in string) (time.Time, error) {
 func makeTime(h int, m int, s int, ms int) time.Time {
 	return time.Date(0, 1, 1, h, m, s, ms*1000*1000, time.UTC)
 }
+
+// cleanLRC clean the string download
+func cleanLRC(s string) (cleanLyric string) {
+	// Clean ' to '
+	s = strings.Replace(s, "'", "'", -1)
+	// It's wierd that sometimes there are two ajacent ''.
+	// Replace it anyway
+	cleanLyric = strings.Replace(s, "''", "'", -1)
+
+	return cleanLyric
+}

lyric/lyric_chinese.go

@@ -69,6 +69,10 @@ func GetLyricChinese(lyricID string, serviceProvider string) (string, error) {
 		return "", err
 	}
 	lyric = dataMap["lyric"].(string)
+	if lyric == "" {
+		err = fmt.Errorf("no lyric available")
+		return "", err
+	}
 	if looksLikeLRC(lyric) {
 		var tmpSubtitle subtitles.Subtitle
 		tmpSubtitle, err = NewFromLRC(lyric)