public PcreDfaMatchResult DfaMatch(string subject, PcreDfaMatchSettings settings, int startIndex, uint additionalOptions)
{
var input = new Native.dfa_match_input();
settings.FillMatchInput(ref input);
var oVector = new uint[2 * Math.Max(1, settings.MaxResults)];
Native.match_result result;
CalloutInterop.CalloutInteropInfo calloutInterop;
fixed(char *pSubject = subject)
fixed(uint *pOVec = &oVector[0])
{
input.code = _code;
input.subject = pSubject;
input.subject_length = (uint)subject.Length;
input.output_vector = pOVec;
input.start_index = (uint)startIndex;
input.additional_options = additionalOptions;
CalloutInterop.Prepare(subject, this, ref input, out calloutInterop, settings.Callout);
Native.dfa_match(ref input, out result);
}
AfterMatch(result, ref calloutInterop);
return(new PcreDfaMatchResult(subject, ref result, oVector));
}
public static void Prepare(string subject, InternalRegex regex, ref Native.dfa_match_input input, out CalloutInteropInfo interopInfo, Func <PcreCallout, PcreCalloutResult> callout)
{
if (callout != null)
{
interopInfo = new CalloutInteropInfo(subject, regex, callout);
input.callout = _calloutHandlerFnPtr;
input.callout_data = interopInfo.ToPointer();
}
else
{
interopInfo = default;
input.callout = null;
}
}