assert alias != null;
// we only care about q=0/q=0.0. If present, the user-agent
// doesn't support this particular compression.
int qvalueStart = acceptEncodingDC.indexOf(';', idx + alias.length());
if (qvalueStart != -1) {
qvalueStart = acceptEncodingDC.indexOf('=', qvalueStart);
final int commaIdx = acceptEncodingDC.indexOf(',', qvalueStart);
final int qvalueEnd = commaIdx != -1 ? commaIdx : acceptEncodingDC.getLength();
if (HttpUtils.convertQValueToFloat(acceptEncodingDC,