func (p *parser) dispatch(depth int, buf *streambuf.Buffer) (common.NetString, bool, bool, bool) {
if buf.Len() == 0 {
return empty, false, true, false
}
var value common.NetString
var iserror, ok, complete bool
snapshot := buf.Snapshot()
switch buf.Bytes()[0] {
case '*':
value, iserror, ok, complete = p.parseArray(depth, buf)
case '$':
value, ok, complete = p.parseString(buf)
case ':':
value, ok, complete = p.parseInt(buf)
case '+':
value, ok, complete = p.parseSimpleString(buf)
case '-':
iserror = true
value, ok, complete = p.parseSimpleString(buf)
default:
if isDebug {
debugf("Unexpected message starting with %s", buf.Bytes()[0])
}
return empty, false, false, false
}
if !ok || !complete {
buf.Restore(snapshot)
}
return value, iserror, ok, complete
}
func parseNextArg(buf *streambuf.Buffer) error {
err := buf.IgnoreSymbol(' ')
if err == streambuf.ErrUnexpectedEOB || err == streambuf.ErrNoMoreBytes {
buf.SetError(nil)
return ErrNoMoreArgument
}
if buf.Len() == 0 {
return ErrNoMoreArgument
}
return nil
}