private Func <TextRange, TextRange?> CreateFilterForOtherEntries(
CompiledTextSearchData compiledTextSearchData)
{
if (compiledTextSearchData.ParsedSearchString.EntriesBeforeMainEntry.Count == 0 &&
compiledTextSearchData.ParsedSearchString.EntriesAfterMainEntry.Count == 0)
{
return(x => x);
}
// Search for a match for "entry" withing "textRange"
FindEntryFunction findEntry = (textRange, entry) => {
var algo = this.GetCompiledTextSearch(compiledTextSearchData.GetSearchContainer(entry));
return(algo.FindFirst(CreateFragmentFromRange(textRange), OperationProgressTracker.None));
};
// Return the extent of the line to look into for non-main entries.
GetLineRangeFunction getLineRange = position =>
this.GetLineTextRangeFromPosition(position, MaxLineExtentOffset);
var sourceTextSearch = new TextSourceTextSearch(
getLineRange,
findEntry,
compiledTextSearchData.ParsedSearchString);
return(sourceTextSearch.FilterSearchHit);
}
public TextSourceTextSearch(
GetLineRangeFunction getLineRange,
FindEntryFunction findEntry,
ParsedSearchString parsedSearchString) {
_findEntry = findEntry;
_parsedSearchString = parsedSearchString;
_getLineExtentCache = new GetLineExtentCache(getLineRange);
}
public TextSourceTextSearch(
GetLineRangeFunction getLineRange,
FindEntryFunction findEntry,
ParsedSearchString parsedSearchString)
{
_findEntry = findEntry;
_parsedSearchString = parsedSearchString;
_getLineExtentCache = new GetLineExtentCache(getLineRange);
}
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 TextSourceTextSearch(GetLineExtentFunction getLineExtent, FindEntryFunction findEntry)
{
_getLineExtent = getLineExtent;
_findEntry = findEntry;
}
public TextSourceTextSearch(GetLineExtentFunction getLineExtent, FindEntryFunction findEntry)
{
_getLineExtent = getLineExtent;
_findEntry = findEntry;
}