/// <summary>
/// Gets a <see cref="IrcChannelUserModes"/> instance from prefixes preceding a name in a NAMES reply.
/// </summary>
internal static IrcChannelUserModes GetUserMode(string prefixes, IrcNetworkParameters parameters)
{
var mode = IrcChannelUserModes.Normal;
foreach (char c in prefixes)
{
mode |= parameters.ChannelModes.UserPrefixes[c];
}
return(mode);
}
/// <summary>
/// Gets the prefixes and actual name from a prefixed channel user name.
/// </summary>
private static ModifiedName SplitName(string prefixedName, IrcNetworkParameters parameters)
{
int index = 0;
while (parameters.ChannelModes.UserPrefixes.ContainsKey(prefixedName[index]))
{
index++;
}
if (index == 0)
{
return(new ModifiedName(prefixedName, string.Empty));
}
string prefixes = prefixedName.Substring(0, index);
string name = prefixedName.Substring(index);
return(new ModifiedName(name, prefixes));
}
/// <summary>
/// Attempts to find what the real name of an <see cref="IrcChannel"/> is from the specified channel name which might include modes.
/// </summary>
/// <remarks>
/// The channel name may begin with the mode char associated with the user (e.g. @#example)
/// Some networks send multiple mode chars. (e.g. @+#example)
/// There is no way to distinguish a voiced user (+#example) from a weird but legal channel name (+#example).
/// Thus, this method is not guaranteed to return an accurate result.
/// </remarks>
internal static ModifiedName GuessChannelName(string nameWithMode, IrcNetworkParameters parameters)
{
int prefixIndex = nameWithMode.IndexOf(StandardChannelPrefix);
if (prefixIndex == -1)
{
do
{
prefixIndex++;
} while (!parameters.IsChannelPrefix(nameWithMode[prefixIndex]));
}
if (prefixIndex == 0)
{
return(new ModifiedName(nameWithMode, string.Empty));
}
string modes = nameWithMode.Substring(0, prefixIndex);
string name = nameWithMode.Substring(prefixIndex);
return(new ModifiedName(name, modes));
}