private void OnChange(IDictionary <string, string> collection, string[] changedKeys)
{
if (!suppressChange)
{
try {
suppressChange = true;
if (collection == UExtensions)
{
SingletonSubtags["u"] = FormatUExtension();
}
else if (collection == TExtensions)
{
SingletonSubtags["t"] = FormatTExtension();
}
else
{
if (Array.IndexOf(changedKeys, "t") >= 0 || Array.IndexOf(changedKeys, "T") >= 0)
{
TExtensions.Clear();
if (collection.TryGetValue("t", out string value) && !String.IsNullOrEmpty(value))
{
BcpLanguageTag t = BcpLanguageTag.Parse("root-t-" + value);
foreach (KeyValuePair <string, string> a in t.TExtensions)
{
TExtensions.Add(a);
}
TLang = t.TLang;
}
else
{
TLang = "";
}
}
if (Array.IndexOf(changedKeys, "u") >= 0 || Array.IndexOf(changedKeys, "U") >= 0)
{
UExtensions.Clear();
Attributes.Clear();
if (collection.TryGetValue("u", out string value) && !String.IsNullOrEmpty(value))
{
BcpLanguageTag t = BcpLanguageTag.Parse("root-u-" + value);
foreach (KeyValuePair <string, string> a in t.UExtensions)
{
UExtensions.Add(a);
}
foreach (string a in t.Attributes)
{
Attributes.Add(a);
}
}
}
}
} finally {
suppressChange = false;
}
}
}