public IEnumerable <IParaFragment> Search(IStText text)
{
CouldNotParseAllParagraphs = false;
if (IsPatternEmpty)
{
return(Enumerable.Empty <IParaFragment>());
}
var matches = new List <IParaFragment>();
foreach (IStTxtPara para in text.ParagraphsOS.OfType <IStTxtPara>())
{
try
{
IParaFragment lastFragment = null;
var data = new ComplexConcParagraphData(m_spanFactory, m_featSys, para);
Match <ComplexConcParagraphData, ShapeNode> match = m_matcher.Match(data);
while (match.Success)
{
if (match.Span.Start == match.Span.End &&
((FeatureSymbol)match.Span.Start.Annotation.FeatureStruct
.GetValue <SymbolicFeatureValue>("type")).ID == "bdry")
{
match = match.NextMatch();
continue;
}
ShapeNode startNode = match.Span.Start;
if (((FeatureSymbol)startNode.Annotation.FeatureStruct
.GetValue <SymbolicFeatureValue>("type")).ID == "bdry")
{
startNode = startNode.Next;
}
Annotation <ShapeNode> startAnn = startNode.Annotation;
if (((FeatureSymbol)startAnn.FeatureStruct.GetValue <SymbolicFeatureValue>(
"type")).ID == "morph")
{
startAnn = startAnn.Parent;
}
var startAnalysis = (Tuple <IAnalysis, int, int>)startAnn.Data;
ShapeNode endNode = match.Span.End;
if (((FeatureSymbol)endNode.Annotation.FeatureStruct
.GetValue <SymbolicFeatureValue>("type")).ID == "bdry")
{
endNode = endNode.Prev;
}
Annotation <ShapeNode> endAnn = endNode.Annotation;
if (((FeatureSymbol)endAnn.FeatureStruct.GetValue <SymbolicFeatureValue>(
"type")).ID == "morph")
{
endAnn = endAnn.Parent;
}
Debug.Assert(startNode.CompareTo(endNode) <= 0);
var endAnalysis = (Tuple <IAnalysis, int, int>)endAnn.Data;
if (lastFragment != null &&
lastFragment.GetMyBeginOffsetInPara() == startAnalysis.Item2 &&
lastFragment.GetMyEndOffsetInPara() == endAnalysis.Item3)
{
match = GetNextMatch(match);
continue;
}
ISegment seg =
para.SegmentsOS.Last(s => s.BeginOffset <= startAnalysis.Item2);
lastFragment = new ParaFragment(seg, startAnalysis.Item2,
endAnalysis.Item3, startAnalysis.Item1);
matches.Add(lastFragment);
match = GetNextMatch(match);
}
}
catch (InvalidOperationException)
{
CouldNotParseAllParagraphs = true;
}
}
return(matches);
}