public MatcherChain()
{
Matchers = new MyBindingList <IMatcher <IComparable> >();
RemainingLineMatcher remainingLineMatcher = new RemainingLineMatcher();
remainingLineMatcher.Name = "Message";
RemainingLineMatcher = remainingLineMatcher;
Matchers.ListChanged += onMatcherListChanged;
onMatcherListChanged(null, null);
}
public MatcherParseResult parseLine(int lineNumber, string line)
{
int currentIndex = 0;
int currentMatcher = 0;
List <IComparable> resultValues = new List <IComparable>();
foreach (IMatcher <IComparable> matcher in Matchers)
{
// skip whitespace
for (; currentIndex < line.Length; currentIndex++)
{
if (!char.IsWhiteSpace(line[currentIndex]))
{
break;
}
}
IMatcherResult <IComparable> matcherResult = matcher.match(line, currentIndex);
if (matcherResult == null)
{
LogAtom failed = new LogAtom(line, lineNumber);
failed.MetaValues = resultValues;
// not very sophisticated empiric method to decide if a line is a new atom or belongs to previous
if (currentMatcher < MatchesNeededForAtomDetected)
{
// failed, not even an atom
failed.MetaValues.Clear();
return(new MatcherParseResult(failed));
}
else
{
// failed, new atom
return(new MatcherParseResult(failed, false));
}
}
else
{
resultValues.Add(matcherResult.Value);
currentIndex = matcherResult.NextIndex;
}
currentMatcher++;
}
// new (successful) atom
resultValues.Add(RemainingLineMatcher.match(line, currentIndex).Value);
LogAtom success = new LogAtom(line, lineNumber);
success.MetaValues = resultValues;
return(new MatcherParseResult(success, true));
}
