/// <summary>
/// Public scanner method. Test scanner input for this parser's patterns.
/// </summary>
/// <remarks>Most parsers won't need to override this method</remarks>
/// <param name="scan">Scanner to parse from</param>
/// <returns>Match (success of failure) of the parser against the scanne</returns>
public virtual ParserMatch Parse(IScanner scan)
{
scan.Normalise();
var st = new System.Diagnostics.StackTrace();
scan.StackStats(st.FrameCount);
if (scan.RecursionCheck(this, scan.Offset))
if (!(this is Recursion))
return scan.NoMatch;
ParserMatch m;
if (this is IMatchingParser) m = ((IMatchingParser) this).TryMatch(scan);
else m = Parse(scan);
if (m.Success)
{
scan.ClearFailures();
}
else
{
scan.AddFailure(this, scan.Offset);
}
return m;
}
public override ParserMatch Parse(IScanner scan)
{
scan.Normalise();
if (scan.RecursionCheck(this, scan.Offset))
return scan.NoMatch;
var m = (source is IMatchingParser)
? ((source as IMatchingParser).TryMatch(scan))
: (source.Parse(scan));
if (m.Success) scan.ClearFailures();
return m;
}
