public override List <FilePositionSpan> Search(SearchContentsData searchContentsData)
{
if (ReferenceEquals(this, _empty))
{
return(NoSpans);
}
// TODO(rpaquay): Maybe we will need this someday. For now, we use this class only for empty file content placeholder.
throw new NotImplementedException();
#if false
Logger.Log("Searching file contents");
List <FilePositionSpan> result = null;
var index = 0;
while (true)
{
var newIndex = _text.IndexOf(searchContentsData.Text, index, StringComparison.Ordinal);
if (newIndex < 0)
{
break;
}
if (result == null)
{
result = new List <FilePositionSpan>();
}
result.Add(newIndex);
index = newIndex + searchContentsData.Text.Length;
}
return(result ?? NoPositions);
#endif
}
public override List <FilePositionSpan> Search(SearchContentsData searchContentsData)
{
if (searchContentsData.ParsedSearchString.MainEntry.Text.Length > ByteLength)
{
return(NoSpans);
}
var algo = searchContentsData.GetSearchAlgorithms(searchContentsData.ParsedSearchString.MainEntry).AsciiStringSearchAlgo;
// TODO(rpaquay): We are limited to 2GB for now.
var result = algo.SearchAll(Pointer, (int)ByteLength);
if (searchContentsData.ParsedSearchString.EntriesBeforeMainEntry.Count == 0 &&
searchContentsData.ParsedSearchString.EntriesAfterMainEntry.Count == 0)
{
return(result.ToList());
}
return(FilterOnOtherEntries(searchContentsData, result).ToList());
}
private IEnumerable <FilePositionSpan> FilterOnOtherEntries(SearchContentsData searchContentsData, IEnumerable <FilePositionSpan> matches)
{
FindEntryFunction findEntry = (position, length, entry) => {
var algo = searchContentsData.GetSearchAlgorithms(entry).AsciiStringSearchAlgo;
var start = Pointers.AddPtr(this.Pointer, position);
var result = algo.Search(start, length);
if (result == IntPtr.Zero)
{
return(-1);
}
return(position + Pointers.Offset32(start, result));
};
GetLineExtentFunction getLineExtent = position => {
int lineStart;
int lineLength;
NativeMethods.Ascii_GetLineExtentFromPosition(this.Pointer, (int)this.CharacterCount, position, out lineStart, out lineLength);
return(new FilePositionSpan {
Position = lineStart, Length = lineLength
});
};
return(new TextSourceTextSearch(getLineExtent, findEntry).FilterOnOtherEntries(searchContentsData.ParsedSearchString, matches));
}
public virtual List <FilePositionSpan> Search(SearchContentsData searchContentsData)
{
return(NoSpans);
}
