/// <summary>
/// Decode lrc format file
/// </summary>
/// <param name="text"></param>
/// <returns></returns>
public override Lyric Decode(string text)
{
// All lyric lines
var lines = new List <string>();
// Components
var atTags = new List <AtTag>();
var rubyTags = new List <RubyTag>();
// Get all lines
var sr = new StringReader(text);
for (var s = sr.ReadLine(); s != null; s = sr.ReadLine())
{
lines.Add(s);
}
// Get all atTag(@) in text
var atTagComponent = new AtTagParserComponent();
foreach (var line in lines.ToList())
{
var atTag = atTagComponent.Decode(line);
if (atTag == null)
{
continue;
}
atTags.Add(atTag.Value);
lines.Remove(line);
}
// Get all lyric from remain text
var timeTagComponent = new TimeTagParserComponent();
var lyric = new Lyric
{
Lines = lines.Select(line => timeTagComponent.Decode(line)).ToArray()
};
// Process ruby tags
var rubyTagComponent = new RubyTagParserComponent(lyric);
foreach (var atTag in atTags.ToList())
{
var rubyTag = rubyTagComponent.Decode(atTag);
if (rubyTag == null)
{
continue;
}
rubyTags.Add(rubyTag.Value);
atTags.Remove(atTag);
}
lyric.RubyTags = rubyTags.ToArray();
return(lyric);
}
public void TestKaraokeLineEncodeAndDecode()
{
const string lyricText = "[00:17:97]帰[00:18:37]り[00:18:55]道[00:18:94]は[00:19:22]";
var timeTagComponent = new TimeTagParserComponent();
var lyric = timeTagComponent.Decode(lyricText);
// Test lyric
Assert.AreEqual(lyric.Text, "帰り道は");
// Test time tag
Assert.AreEqual(lyric.TimeTags.Length, 10);
Assert.AreEqual(lyric.TimeTags[0].Time, -1);
Assert.AreEqual(lyric.TimeTags[1].Time, 17970);
Assert.AreEqual(lyric.TimeTags[2].Time, -1);
Assert.AreEqual(lyric.TimeTags[3].Time, 18370);
// Then encode
var encodeResult = timeTagComponent.Encode(lyric);
// Test encode result
Assert.AreEqual(encodeResult, encodeResult);
}
/// <summary>
/// Encode lrc format file
/// </summary>
/// <param name="lyric"></param>
/// <returns></returns>
public override string Encode(Lyric lyric)
{
if (lyric == null)
{
return(null);
}
var sb = new StringBuilder();
// Get all lyric in remain text
var timeTagComponent = new TimeTagParserComponent();
foreach (var line in lyric.Lines)
{
var lyricResult = timeTagComponent.Encode(line);
//Copy result
sb.AppendLine(lyricResult);
}
// Change new line
sb.AppendLine("");
// Convert ruby into ast tag
var rubyTagComponent = new RubyTagParserComponent(lyric);
var atTags = lyric.RubyTags.Select(rubyTag => rubyTagComponent.Encode(rubyTag)).ToList();
// Convert at tag into string
var atTagComponent = new AtTagParserComponent();
foreach (var atTagResult in atTags.Select(atTag => atTagComponent.Encode(atTag)))
{
//Copy result
sb.AppendLine(atTagResult);
}
//return result
return(sb.ToString());
}
