public POSingularEntry(POKey key)
{
if (!key.IsValid)
{
throw new ArgumentException(null, nameof(key));
}
Key = key;
}
public override string ToString()
{
var idKindToken = POKey.GetIdKindToken(IdKind) ?? "?";
var value = Value ?? string.Empty;
var sb = new StringBuilder();
sb.Append(idKindToken);
sb.Append(' ');
sb.Append('"');
POString.Encode(sb, value, 0, value.Length);
sb.Append('"');
return(sb.ToString());
}
public static bool TryParse(string value, out POPreviousValueComment result)
{
if (value == null)
{
throw new ArgumentNullException(nameof(value));
}
string idKindToken = null;
value = value.Trim();
var index = value.FindIndex(char.IsWhiteSpace);
if (index >= 0)
{
idKindToken = value.Remove(index);
value = value.Substring(index + 1).TrimStart();
}
int length;
POIdKind idKind;
StringBuilder sb;
if (index < 0 ||
(length = value.Length) < 2 || value[0] != '"' || value[length - 1] != '"' ||
(idKind = POKey.GetIdKind(idKindToken)) == POIdKind.Unknown ||
POString.Decode(sb = new StringBuilder(), value, 1, length - 2) >= 0)
{
result = null;
return(false);
}
result = new POPreviousValueComment {
IdKind = idKind, Value = sb.ToString()
};
return(true);
}
