/// <summary>
/// 如果转换失败，返回 null.
/// </summary>
public static string ToFeng(string yngping)
{
var parsed = Yngping0_4_0Validator.ParseHukziuSyllable(yngping);
if (parsed.HasValue)
{
return(ToFeng(parsed.Value.Item1, parsed.Value.Item2, parsed.Value.Item3));
}
return(null);
}
private static string FindAudioWithFallback(string yngpingSyllable)
{
var fallbacks = new HashSet <string>();
fallbacks.Add(yngpingSyllable);
while (fallbacks.Count < MaxFallbackCount)
{
var foundNew = false;
foreach (var rule in ReplacementRules)
{
var newSyllables = new List <string>();
foreach (var syllable in fallbacks)
{
var parseResult = Yngping0_4_0Validator.ParseHukziuSyllable(syllable);
if (parseResult == null)
{
continue;
}
var(initial, final, tone) = parseResult.Value;
var output = rule.GenerateFallbacks(initial, final, tone);
foreach (var newSyllable in output)
{
if (!fallbacks.Contains(newSyllable))
{
if (SyllableMappings.ContainsKey(newSyllable))
{
return(SyllableMappings[newSyllable]);
}
foundNew = true;
newSyllables.Add(newSyllable);
}
}
}
foreach (var newSyllable in newSyllables)
{
fallbacks.Add(newSyllable);
}
if (fallbacks.Count >= MaxFallbackCount)
{
break;
}
}
if (!foundNew)
{
break;
}
}
return(string.Empty);
}
public void ParseHukziuSyllable(string syllable, string initial, string final, string tone)
{
Assert.Equal((initial, final, tone),
Yngping0_4_0Validator.TryParseHukziuSyllable(syllable));
}
public void InvalidCoda_ShouldFail(string syllable)
{
Assert.False(Yngping0_4_0Validator.CheckHukziuSyllable(syllable));
}
public void ValidSyllables_ShouldPass(string syllable)
{
Assert.True(Yngping0_4_0Validator.CheckHukziuSyllable(syllable));
}
