internal void ClearData(int?index = null)
{
if (MatchMap == null)
{
return;
}
if (index is int i)
{
if (MatchMap.TryGetValue(i, out var matches))
{
matches.Clear();
}
}
else
{
MatchMap.Clear();
}
}
// private method
private void _Clear()
{
m_REs = null;
m_ReplaceStrs = null;
m_MatchMap.Clear();
}