//int lastVersion = -1;
public IEnumerable <ITagSpan <ClassificationTag> > GetTags(NormalizedSnapshotSpanCollection spans)
{
if (spans.Count == 0)
{
yield break;
}
ITextSnapshot currentSnapshot = _buffer.CurrentSnapshot;
SQCompileError error = null;
bool newversion;
_languangeService.Parse(_buffer, out newversion, ref error);
var ts = _languangeService.GetClassificationInfo(filepath);
// int currentVersion = _buffer.CurrentSnapshot.Version.VersionNumber;
List <SnapshotSpan> keywordspans = new List <SnapshotSpan>();
List <SnapshotSpan> nokeywordspans = new List <SnapshotSpan>();
List <TagSpan <ClassificationTag> > _currentTags = new List <TagSpan <ClassificationTag> >();
var cachekeys = _languangeService.GetKeywordSpans(filepath);
if (cachekeys == null || newversion)
{
//_currentTags.Clear();
var textstructnav = _textStructureNavigatorSelector.GetTextStructureNavigator(_buffer);
FindData fd = new FindData();
fd.TextStructureNavigator = textstructnav;
fd.FindOptions = FindOptions.WholeWord | FindOptions.MatchCase;
foreach (SnapshotSpan curSpan in spans)
{
fd.TextSnapshotToSearch = curSpan.Snapshot;
foreach (string key in _sqTypes.Keys)
{
fd.SearchString = key;
var result = _textSearchService.FindAll(fd);
keywordspans.AddRange(result);
}
}
_languangeService.SetKeywordCache(filepath, keywordspans.ToArray());
}
else
{
keywordspans.AddRange(cachekeys);
}
foreach (var t in ts)
{
TextSpan scope = t.Item2;
if (t.Item4 == SQDeclarationType.Class ||
t.Item4 == SQDeclarationType.Enum)
{
scope = t.Item1;
}
if (scope.iEndLine == -1 || scope.iStartLine == -1 ||
scope.iEndLine >= currentSnapshot.LineCount || scope.iStartLine >= currentSnapshot.LineCount)
{
continue;
}
int length = 0;
string collpasedlabel = t.Item3;
SnapshotPoint?start = null;
try
{
var startLine = currentSnapshot.GetLineFromLineNumber(scope.iStartLine);
var endLine = currentSnapshot.GetLineFromLineNumber(scope.iEndLine);
start = startLine.Start + scope.iStartIndex;
length = (endLine.Start - startLine.Start) + scope.iEndIndex - scope.iStartIndex;
if (start.Value.Position + length >= currentSnapshot.Length)
{
length = currentSnapshot.Length - start.Value.Position;
}
}
catch (Exception)
{
length = 0;
}
if (length > 0 && start != null)
{
SnapshotSpan snap = new SnapshotSpan(start.Value, length);
if (newversion)
{
TagsChanged(this, new SnapshotSpanEventArgs(snap));
}
switch (t.Item4)
{
case SQDeclarationType.AttributeScope:
nokeywordspans.Add(snap);
_currentTags.Add(new TagSpan <ClassificationTag>(snap, _attribtag));
break;
case SQDeclarationType.CommentScope:
nokeywordspans.Add(snap);
_currentTags.Add(new TagSpan <ClassificationTag>(snap, _commenttag));
break;
case SQDeclarationType.LiteralScope:
nokeywordspans.Add(snap);
_currentTags.Add(new TagSpan <ClassificationTag>(snap, _stringtag));
break;
case SQDeclarationType.Extend:
case SQDeclarationType.Class:
_currentTags.Add(new TagSpan <ClassificationTag>(snap, _classtag));
break;
case SQDeclarationType.Enum:
_currentTags.Add(new TagSpan <ClassificationTag>(snap, _enumtag));
break;
case SQDeclarationType.SubName:
_currentTags.Add(new TagSpan <ClassificationTag>(snap, _subnametag));
break;
case SQDeclarationType.Number:
_currentTags.Add(new TagSpan <ClassificationTag>(snap, _numberictag));
break;
}
}
}
foreach (var kwspan in keywordspans)
{
bool cancel = false;
foreach (var nokwspan in nokeywordspans)
{
if (nokwspan.Contains(kwspan.Start.Position))//nokwspan.IntersectsWith(kwspan))
{
cancel = true;
break;
}
}
if (cancel)
{
continue;
}
if (newversion)
{
TagsChanged(this, new SnapshotSpanEventArgs(kwspan));
}
_currentTags.Add(new TagSpan <ClassificationTag>(kwspan, _keywordtag));
}
foreach (var t in _currentTags)
{
yield return(t);
}
}
public IEnumerable <ITagSpan <ClassificationTag> > GetTags(NormalizedSnapshotSpanCollection spans)
{
if (spans.Count == 0)
{
yield break;
}
ITextSnapshot currentSnapshot = _buffer.CurrentSnapshot;
SQCompilerError error = null;
bool newversion;
_languangeService.Parse(_buffer, out newversion, ref error);
var ts = _languangeService.GetClassificationInfo(filepath);
foreach (var t in ts)
{
TextSpan scope = t.Item2;
if (t.Item4 == SQDeclarationType.Class ||
t.Item4 == SQDeclarationType.Enum)
{
scope = t.Item1;
}
if (scope.iEndLine == -1 || scope.iStartLine == -1 ||
scope.iEndLine >= currentSnapshot.LineCount || scope.iStartLine >= currentSnapshot.LineCount)
{
continue;
}
int length = 0;
string collpasedlabel = t.Item3;
SnapshotPoint?start = null;
try
{
var startLine = currentSnapshot.GetLineFromLineNumber(scope.iStartLine);
var endLine = currentSnapshot.GetLineFromLineNumber(scope.iEndLine);
start = startLine.Start + scope.iStartIndex;
length = (endLine.Start - startLine.Start) + scope.iEndIndex - scope.iStartIndex;
if (start.Value.Position + length >= currentSnapshot.Length)
{
length = currentSnapshot.Length - start.Value.Position;
}
}
catch (Exception)
{
length = 0;
}
if (length > 0 && start != null)
{
SnapshotSpan snap = new SnapshotSpan(start.Value, length);
if (newversion)
{
TagsChanged(this, new SnapshotSpanEventArgs(snap));
}
switch (t.Item4)
{
case SQDeclarationType.AttributeScope:
yield return(new TagSpan <ClassificationTag>(snap, _attribtag)); break;
case SQDeclarationType.CommentScope:
yield return(new TagSpan <ClassificationTag>(snap, _commenttag)); break;
case SQDeclarationType.LiteralScope:
yield return(new TagSpan <ClassificationTag>(snap, _stringtag)); break;
case SQDeclarationType.Extend:
case SQDeclarationType.Class:
yield return(new TagSpan <ClassificationTag>(snap, _classtag)); break;
case SQDeclarationType.Enum:
yield return(new TagSpan <ClassificationTag>(snap, _enumtag)); break;
case SQDeclarationType.SubName:
yield return(new TagSpan <ClassificationTag>(snap, _subnametag)); break;
case SQDeclarationType.Number:
yield return(new TagSpan <ClassificationTag>(snap, _numberictag)); break;
}
}
}
}