private static StringSegment ReadProtocol(StringSegment chars)
{
var spaceIndex = SipCharacters.IndexOfWhitespace(chars);
if (spaceIndex == -1)
{
return(chars);
}
return(chars.Subsegment(0, spaceIndex));
}
private static StringSegment ReadSequenceNumber(StringSegment chars)
{
var separatorIndex = SipCharacters.IndexOfWhitespace(chars);
if (separatorIndex < 0)
{
return(chars);
}
return(chars.Subsegment(0, separatorIndex));
}