public static bool TryGetName(this Link link, out string str)
{
// Защита от зацикливания
if (!_linksWithNamesGatheringProcess.Add(link))
{
str = "...";
return(true);
}
try
{
if (link != null)
{
if (link.Linker == Net.And)
{
str = SequenceHelpers.FormatSequence(link);
return(true);
}
else if (link.IsGroup())
{
str = LinkConverter.ToString(LinkConverter.ToList(link.Target));
return(true);
}
else if (link.IsChar())
{
str = LinkConverter.ToChar(link).ToString();
return(true);
}
else if (link.TryGetSpecificName(out str))
{
return(true);
}
if (link.Source == link || link.Linker == link || link.Target == link)
{
return(false);
}
if (link.Source.TryGetName(out string sourceName) && link.Linker.TryGetName(out string linkerName) && link.Target.TryGetName(out string targetName))
{
var sb = new StringBuilder();
sb.Append(sourceName).Append(' ').Append(linkerName).Append(' ').Append(targetName);
str = sb.ToString();
return(true);
}
}
str = null;
return(false);
}
finally
{
_linksWithNamesGatheringProcess.Remove(link);
}
}
public static bool TryGetSpecificName(this Link link, out string name)
{
string nameLocal = null;
if (Net.Name.ReferersBySourceCount < link.ReferersBySourceCount)
{
Net.Name.WalkThroughReferersAsSource(referer =>
{
if (referer.Linker == Net.ThatIsRepresentedBy)
{
if (Link.Exists(link, Net.Has, referer))
{
nameLocal = LinkConverter.ToString(referer.Target);
return(false); // Останавливаем проход
}
}
return(true);
});
}
else
{
link.WalkThroughReferersAsSource(referer =>
{
if (referer.Linker == Net.Has)
{
var nameLink = referer.Target;
if (nameLink.Source == Net.Name && nameLink.Linker == Net.ThatIsRepresentedBy)
{
nameLocal = LinkConverter.ToString(nameLink.Target);
return(false); // Останавливаем проход
}
}
return(true);
});
}
name = nameLocal;
return(nameLocal != null);
}