public LineCommentInfoTest()
{
this.commentClass = new StubIClassificationType();
this.commentClass.ClassificationGet = () => "comment";
this.commentClass.IsOfTypeString = s => string.Equals(s, "comment");
this.wholeLineCommentClassifier = new StubIClassifier();
this.wholeLineCommentClassifier.GetClassificationSpansSnapshotSpan = s =>
{
// Find the "//"... Note: doesn't look for "''" (VB) or "/*"
// (multi-line). That might need to change when we start
// supporting more comment styles.
var markerStart = s.GetText().IndexOf("//");
Assert.IsTrue(markerStart >= 0);
var commentSpan = new SnapshotSpan(s.Start + markerStart, s.End);
var span = new ClassificationSpan(commentSpan, this.commentClass);
var list = new List<ClassificationSpan>();
list.Add(span);
return list;
};
this.defaultOptions = new SimpleEditorOptions();
this.defaultOptions.SetOptionValue("Tabs/ConvertTabsToSpaces", true);
this.defaultOptions.SetOptionValue("Tabs/TabSize", 4);
}
public IList<ClassificationSpan> GetClassificationSpans(SnapshotSpan span)
{
List<ClassificationSpan> spans = new List<ClassificationSpan>();
if (!WESettings.Instance.Css.SyncVendorValues)
return spans;
foreach (Declaration dec in Cache.Where(d => d.PropertyName.Text.Length > 0 && span.Start <= d.Start && span.End >= d.AfterEnd))
{
if (dec.IsVendorSpecific())
{
var ss = new SnapshotSpan(span.Snapshot, dec.Start, dec.Length);
var s = new ClassificationSpan(ss, _decClassification);
spans.Add(s);
}
if (dec.Semicolon == null)
continue;
int start = dec.Colon.AfterEnd;
int length = dec.AfterEnd - start;
if (span.Snapshot.Length > start + length)
{
var ss2 = new SnapshotSpan(span.Snapshot, start, length);
var s2 = new ClassificationSpan(ss2, _valClassification);
spans.Add(s2);
}
}
return spans;
}
private List <ClassificationSpan> GetKeywordMatchList(SnapshotSpan span)
{
var result = new List <ClassificationSpan>();
var originalText = span.GetText();
var words = originalText.Split(delimiterChars);
foreach (var word in words)
{
foreach (var keyword in keywords)
{
if (word == keyword)
{
// TODO:複数個同じキーワードがあった場合の対応
var index = originalText.IndexOf(keyword);
if (index >= 0)
{
var start = span.Start.Position + index;
var snapshotSpan = new SnapshotSpan(span.Snapshot, new Span(start, keyword.Length));
var classificationSpan = new ClassificationSpan(snapshotSpan, categoryMap[PredefinedClassificationTypeNames.Keyword]);
result.Add(classificationSpan);
}
}
}
}
return(result);
}
private ClassificationSpan GetRootSpan(ITextSnapshot snapshot)
{
const int countByPage = 200;
int totalPages = (snapshot.Length + countByPage - 1) / countByPage;
for (int index = 0; index < totalPages; index++)
{
int fromIndex = Math.Max(0, (index - 1) * countByPage);
int otherLength = snapshot.Length - fromIndex;
int length = Math.Min(2 * countByPage, otherLength);
var spans = _classifier.GetClassificationSpans(new SnapshotSpan(snapshot, fromIndex, length));
ClassificationSpan xmlRootSpan = spans.Where((s, i) =>
i > 0 &&
s.ClassificationType.IsOfType(xmlClassificationXmlName) &&
spans[i - 1].ClassificationType.IsOfType(xmlClassificationDelimiter) &&
spans[i - 1].Span.GetText() == "<"
).FirstOrDefault();
if (xmlRootSpan != null)
{
return(xmlRootSpan);
}
}
return(null);
}
private static SnapshotSpan?GetExtent(ClassificationSpan delimiterBefore, ClassificationSpan delimiterAfter, ITextSnapshot snapshot, int cursorPosition)
{
SnapshotSpan?extentTemp = null;
if (delimiterBefore != null &&
delimiterAfter != null &&
delimiterBefore.ClassificationType.IsOfType(xmlClassificationDelimiter) &&
delimiterAfter.ClassificationType.IsOfType(xmlClassificationDelimiter)
)
{
var tempSpan = new SnapshotSpan(delimiterBefore.Span.End, delimiterAfter.Span.Start);
if (string.IsNullOrWhiteSpace(tempSpan.GetText()))
{
//extentTemp = new SnapshotSpan(delimiterBefore.Span.End, 0);
extentTemp = new SnapshotSpan(snapshot, cursorPosition, 0);
}
else
{
int spacesStart = tempSpan.GetText().TakeWhile(ch => char.IsWhiteSpace(ch)).Count();
int spacesEnd = tempSpan.GetText().Reverse().TakeWhile(ch => char.IsWhiteSpace(ch)).Count();
extentTemp = new SnapshotSpan(delimiterBefore.Span.End.Add(spacesStart), delimiterAfter.Span.Start.Add(-spacesEnd));
}
}
return(extentTemp);
}
/// <summary>
/// tries to close region
/// </summary>
/// <param name="parser">parser</param>
/// <returns>whether region was closed</returns>
protected override bool TryComplete(TextRegion r, SnapshotParser parser)
{
ClassificationSpan span = parser.CurrentSpan;
SnapshotPoint point = parser.CurrentPoint;
if (span != null)
{
string text = span.Span.GetText();
if (span.ClassificationType.Classification == "punctuation")
{
char c = point.GetChar();
//text can be "};", not just "}"
if (r.RegionType == TextRegionType.Block && c == '}' ||
r.RegionType == TextRegionType.Array && c == ']')
{
r.EndPoint = span.Span.Start + 1;
}
}
else if (span.ClassificationType.Classification == "comment" && r.RegionType == TextRegionType.Region)
{
Match m = RegionEndRegex.Match(text);
if (m.Success)
{
r.EndPoint = span.Span.End;
}
}
}
return(r.Complete);
}
private void AddTokenClassifications(ITextBuffer buffer, SnapshotSpan span, List <ClassificationSpan> classifications, Span?lastClassificationSpan, IClassificationType gapType)
{
List <ClassificationInfo> spans = null;
if (!buffer.Properties.TryGetProperty <List <ClassificationInfo> >(BufferProperties.TokenSpans, out spans) || spans == null)
{
return;
}
foreach (var current in spans)
{
if (current.Start + current.Length < span.Start)
{
continue;
}
if (current.Start > span.End)
{
break;
}
if (current.Start + current.Length > buffer.CurrentSnapshot.Length)
{
continue;
}
var snapshotSpan = new SnapshotSpan(span.Snapshot, current.Start, current.Length);
var classificationSpan = new ClassificationSpan(snapshotSpan, current.ClassificationType);
FillClassificationGap(classifications, lastClassificationSpan, snapshotSpan, buffer.CurrentSnapshot, gapType);
lastClassificationSpan = snapshotSpan;
classifications.Add(classificationSpan);
}
}
private bool FindMatchingOpenTag(List <ClassificationSpan> sortedTags, int indexTag, ITextSnapshot snapshot, out SnapshotSpan pairSpan)
{
pairSpan = new SnapshotSpan(snapshot, 1, 1);
try
{
ClassificationSpan currentTag = sortedTags[indexTag];
ITextSnapshotLine line = currentTag.Span.Start.GetContainingLine();
int lineNumber = line.LineNumber;
int nested = 0;
for (int i = indexTag - 1; i >= 0; i--)
{
var openTag = sortedTags[i];
if (openTag.ClassificationType.IsOfType(ColorizerConstants.XSharpBraceOpenFormat))
{
nested--;
if (nested < 0)
{
pairSpan = new SnapshotSpan(snapshot, openTag.Span);
return(true);
}
}
else
{
nested++;
}
}
}
catch (Exception e)
{
System.Diagnostics.Debug.WriteLine(e.Message);
}
//
return(false);
}
public static bool FindTest(this SnapshotSpan extent, ITextView view, IClassifier classifier, out int lineNumber)
{
lineNumber = view.TextSnapshot.GetLineNumberFromPosition(extent.Start) + 1;
IList <ClassificationSpan> classifiers = classifier.GetClassificationSpans(extent);
ClassificationSpan cspan = classifiers.FirstOrDefault(c =>
c.ClassificationType.Classification.Contains("PowerShellCommand"));
bool found = false;
string text = cspan?.Span.GetText();
if (string.Equals(text, "describe", StringComparison.InvariantCultureIgnoreCase))
{
found = true;
}
else if (string.Equals(text, "context", StringComparison.InvariantCultureIgnoreCase))
{
found = true;
}
else if (string.Equals(text, "it", StringComparison.InvariantCultureIgnoreCase))
{
found = true;
}
return(found);
}
/// <summary>
/// "Mark" a Token, specifying it's type and the span it covers
/// </summary>
/// <param name="token"></param>
/// <param name="snapshot"></param>
/// <param name="type"></param>
/// <returns></returns>
private ClassificationSpan Token2ClassificationSpan(IToken token, ITextSnapshot snapshot, IClassificationType type)
{
TextSpan tokenSpan = new TextSpan(token.StartIndex, token.StopIndex - token.StartIndex + 1);
ClassificationSpan span = tokenSpan.ToClassificationSpan(snapshot, type);
return(span);
}
public IList <ClassificationSpan> GetClassificationSpans(SnapshotSpan span)
{
List <ClassificationSpan> result = new List <ClassificationSpan>();
this.UpdateBlocks(span, true);
int position = span.Start.Position;
int index = this.FindBlockIndex(span, span.Start.Position, false);
while (index < this.trackedBlocks.Count)
{
TrackedBlock block = this.trackedBlocks[index];
this.CacheBlock(span, block);
int classificationStartPosition = block.Block.GetStartPoint(span.Snapshot);
int classificationIndex = 0;
while (classificationIndex < block.CachedClassifications.Count && position < span.End.Position)
{
ClassificationSpan classification = block.CachedClassifications[classificationIndex];
int classificationEndPosition = classificationStartPosition + classification.Span.Length;
if (span.OverlapsWith(Span.FromBounds(classificationStartPosition, classificationEndPosition)))
{
result.Add(classification);
}
++classificationIndex;
classificationStartPosition = classificationEndPosition;
if (classificationEndPosition >= span.End.Position)
{
return(result);
}
}
++index;
}
return(result);
}
private Span GetSyntaxSpan(out string text)
{
int position = _view.Caret.Position.BufferPosition.Position;
text = string.Empty;
if (position == 0)
{
return(_emptySpan);
}
ITextSnapshotLine line = _view.TextBuffer.CurrentSnapshot.GetLineFromPosition(position);
ClassificationSpan last = _classifier.GetClassificationSpans(line.Extent).LastOrDefault();
SnapshotPoint start = last?.Span.End ?? line.Start;
if (start > position)
{
return(_emptySpan);
}
text = line.Snapshot.GetText(start, position - start).Trim();
int offset = position - start - text.Length;
return(Span.FromBounds(start + offset, position));
}
public IList<ClassificationSpan> GetClassificationSpans(SnapshotSpan span)
{
List<ClassificationSpan> spans = new List<ClassificationSpan>();
if (!WESettings.Instance.Css.SyncBase64ImageValues)
return spans;
foreach (Declaration dec in Cache.Where(d => d.PropertyName.Text.EndsWith("background-image", StringComparison.OrdinalIgnoreCase) && span.Start <= d.Start && span.End >= d.AfterEnd))
{
if (dec.PropertyName.Text.StartsWith("*background", StringComparison.OrdinalIgnoreCase))
{
var ss = new SnapshotSpan(span.Snapshot, dec.Start, dec.Length);
var s = new ClassificationSpan(ss, _decClassification);
spans.Add(s);
}
if (dec.Semicolon == null)
continue;
int start = dec.Colon.AfterEnd;
int length = dec.AfterEnd - start;
if (span.Snapshot.Length > start + length)
{
var ss2 = new SnapshotSpan(span.Snapshot, start, length);
var s2 = new ClassificationSpan(ss2, _valClassification);
spans.Add(s2);
}
}
return spans;
}
internal static void AddTokenClassifications(ITextBuffer buffer, SnapshotSpan span, List <ClassificationSpan> classifications, Span?lastClassificationSpan, IClassificationType gapType)
{
var spans = (List <ClassificationInfo>)buffer.Properties.GetProperty(BufferProperties.TokenSpans);
foreach (var current in spans)
{
if (current.Start + current.Length < span.Start)
{
continue;
}
if (current.Start > span.End)
{
break;
}
if (current.Start + current.Length > buffer.CurrentSnapshot.Length)
{
continue;
}
var snapshotSpan = new SnapshotSpan(span.Snapshot, current.Start, current.Length);
var classificationSpan = new ClassificationSpan(snapshotSpan, current.ClassificationType);
FillClassificationGap(classifications, lastClassificationSpan, snapshotSpan, buffer.CurrentSnapshot, gapType);
lastClassificationSpan = snapshotSpan;
classifications.Add(classificationSpan);
}
}
public IList <ClassificationSpan> GetClassificationSpans(SnapshotSpan span)
{
List <ClassificationSpan> spans = new List <ClassificationSpan>();
if (!WESettings.GetBoolean(WESettings.Keys.SyncVendorValues) || !EnsureInitialized())
{
return(spans);
}
var declarations = Cache.Where(d => span.End <= d.AfterEnd && d.Start >= span.Start);
foreach (Declaration dec in Cache.Where(d => d.PropertyName.Text.Length > 0 && span.Snapshot.Length >= d.AfterEnd))
{
if (dec.IsVendorSpecific())
{
var ss = new SnapshotSpan(span.Snapshot, dec.Start, dec.Length);
var s = new ClassificationSpan(ss, _decClassification);
spans.Add(s);
}
int start = dec.Colon.AfterEnd;
int length = dec.AfterEnd - start;
if (span.Snapshot.Length > start + length)
{
var ss2 = new SnapshotSpan(span.Snapshot, start, length);
var s2 = new ClassificationSpan(ss2, _valClassification);
spans.Add(s2);
}
}
return(spans);
}
public IList<ClassificationSpan> GetClassificationSpans(SnapshotSpan span)
{
List<ClassificationSpan> spans = new List<ClassificationSpan>();
if (!WESettings.GetBoolean(WESettings.Keys.SyncVendorValues) || !EnsureInitialized())
return spans;
var declarations = Cache.Where(d => span.End <= d.AfterEnd && d.Start >= span.Start);
foreach (Declaration dec in Cache.Where(d => d.PropertyName.Text.Length > 0 && span.Snapshot.Length >= d.AfterEnd))
{
if (dec.IsVendorSpecific())
{
var ss = new SnapshotSpan(span.Snapshot, dec.Start, dec.Length);
var s = new ClassificationSpan(ss, _decClassification);
spans.Add(s);
}
int start = dec.Colon.AfterEnd;
int length = dec.AfterEnd - start;
if (span.Snapshot.Length > start + length)
{
var ss2 = new SnapshotSpan(span.Snapshot, start, length);
var s2 = new ClassificationSpan(ss2, _valClassification);
spans.Add(s2);
}
}
return spans;
}
private bool IsCompletionSupported(SnapshotPoint triggerLocation, out string attributeName, out SnapshotSpan applicapleTo)
{
applicapleTo = new SnapshotSpan(triggerLocation, 0);
attributeName = null;
if (!IsXmlAttributeValue(triggerLocation))
{
return(false);
}
applicapleTo = triggerLocation.GetContainingLine().Extent;
string line = applicapleTo.GetText();
IList <ClassificationSpan> spans = _classifier.GetClassificationSpans(applicapleTo);
ClassificationSpan attrValueSpan = spans.FirstOrDefault(s => s.Span.Start <= triggerLocation && s.Span.End >= triggerLocation && s.ClassificationType.IsOfType("XML Attribute Value"));
int valueSpanIndex = spans.IndexOf(attrValueSpan);
if (attrValueSpan == null || valueSpanIndex < 3)
{
return(false);
}
applicapleTo = attrValueSpan.Span;
ClassificationSpan attrNameSpan = spans.ElementAt(valueSpanIndex - 3);
if (!attrNameSpan.ClassificationType.IsOfType("XML Attribute"))
{
return(false);
}
attributeName = attrNameSpan.Span.GetText();
return(true);
}
IList<ClassificationSpan> IClassifier.GetClassificationSpans(SnapshotSpan toClassifySpan)
{
List<ClassificationSpan> list = new List<ClassificationSpan>();
if (_document.IsMassiveChangeInProgress)
{
return list;
}
EnsureInitialized();
ITextSnapshot snapshot = toClassifySpan.Snapshot;
for (int i = GetFirstClassificationDataAfterOrAtPosition(toClassifySpan.Start, snapshot); i < _spansToClassify.Count; i++)
{
ClassificationData classificationData = _spansToClassify[i];
SnapshotSpan span = classificationData.TrackingSpan.GetSpan(snapshot);
if (span.Start >= toClassifySpan.End)
{
break;
}
Microsoft.VisualStudio.Text.Span span2 = Microsoft.VisualStudio.Text.Span.FromBounds(Math.Max(span.Start, toClassifySpan.Start), Math.Min(span.End, toClassifySpan.End));
SnapshotSpan arg_C4_0 = new SnapshotSpan(snapshot, span2);
IClassificationType classificationType = classificationData.ClassificationType;
ClassificationSpan item = new ClassificationSpan(arg_C4_0, classificationType);
list.Add(item);
}
return list;
}
public static CompletionAnalysis Make(IList <ClassificationSpan> classifications, ClassificationSpan start,
Span loc, ITextSnapshot snapshot, ITrackingSpan span, ITextBuffer buffer, bool isSpace)
{
if (classifications.Count == 1)
{
return(new ImportCompletionAnalysis(String.Empty, loc.Start, span, buffer));
}
ClassificationSpan imp = null;
for (int i = 1; i < classifications.Count; i++)
{
if (IsKeyword(classifications[i], "import"))
{
imp = classifications[i];
}
}
var end = classifications[classifications.Count - 1];
if (imp == null)
{
if (isSpace)
{
return(EmptyCompletionContext);
}
// from [completion]
// or
// from xxx.[completion]
// or
// from xxx[Ctrl-Space completion]
return(new ImportCompletionAnalysis(GetText(snapshot, start, end, true), loc.Start, span, buffer));
}
// from xyz import [completion]
// or
// from xyz import abc[Ctrl-Space completion]
var nsText = GetText(snapshot, start, imp, false);
string itemText;
if (Object.ReferenceEquals(end, imp))
{
itemText = String.Empty;
}
else
{
if (isSpace)
{
return(EmptyCompletionContext);
}
var itemLen = end.Span.End - imp.Span.End - 1;
var itemSpan = new SnapshotSpan(snapshot, imp.Span.End + 1, itemLen);
itemText = itemSpan.GetText();
}
return(new FromImportCompletionAnalysis(itemText, loc.Start, span, buffer, nsText));
}
private void AddClassificationSpan(List <ClassificationSpan> result, SnapshotPoint startPoint, SnapshotPoint endPoint)
{
SnapshotSpan snapshotSpan = new SnapshotSpan(startPoint, endPoint);
ClassificationSpan classificationSpan = new ClassificationSpan(snapshotSpan, this.classificationType);
result.Add(classificationSpan);
}
public IList <ClassificationSpan> GetClassificationSpans(SnapshotSpan span)
{
List <ClassificationSpan> spans = new List <ClassificationSpan>();
if (!WESettings.Instance.Css.SyncBase64ImageValues)
{
return(spans);
}
foreach (Declaration dec in Cache.Where(d => d.PropertyName.Text.EndsWith("background-image", StringComparison.OrdinalIgnoreCase) && span.Start <= d.Start && span.End >= d.AfterEnd))
{
if (dec.PropertyName.Text.StartsWith("*background", StringComparison.OrdinalIgnoreCase))
{
var ss = new SnapshotSpan(span.Snapshot, dec.Start, dec.Length);
var s = new ClassificationSpan(ss, _decClassification);
spans.Add(s);
}
if (dec.Semicolon == null)
{
continue;
}
int start = dec.Colon.AfterEnd;
int length = dec.AfterEnd - start;
if (span.Snapshot.Length > start + length)
{
var ss2 = new SnapshotSpan(span.Snapshot, start, length);
var s2 = new ClassificationSpan(ss2, _valClassification);
spans.Add(s2);
}
}
return(spans);
}
/// <summary>
/// parses input buffer, searches for region start
/// </summary>
/// <param name="parser"></param>
/// <returns>created region or null</returns>
public override TextRegion TryCreateRegion(SnapshotParser parser)
{
ClassificationSpan span = parser.CurrentSpan;
SnapshotPoint point = parser.CurrentPoint;
if (span != null)
{
switch (span.ClassificationType.Classification)
{
case "punctuation":
char c = point.GetChar();
switch (c)
{
case '{':
return(new TextRegion(span.Span.Start, TextRegionType.Block));
case '[':
return(new TextRegion(span.Span.Start, TextRegionType.Array));
}
break;
case "comment":
return(ParseComment(parser, RegionStartRegex, RegionEndRegex));
}
}
return(null);
}
private void CreateNormalizedSpans()
{
Int32 startCharacterIndex = _startCharacterIndex;
Int32 length = _text.Length;
NormalizedSpan span = new NormalizedSpan("", "_gap_", _startCharacterIndex, TextFormattingRunProperties.DefaultProperties);
_startNode = span;
for (Int32 i = 0; i < _classificationSpanList.Count; i++)
{
ClassificationSpan span2 = _classificationSpanList[i];
Span span3 = span2.Span();
if (span3.Start >= (_startCharacterIndex + length))
{
break;
}
Int32 num4 = span3.Start - startCharacterIndex;
if (num4 > 0)
{
NormalizedSpan span4 = new NormalizedSpan(_text.Substring(startCharacterIndex - _startCharacterIndex, span3.Start - startCharacterIndex), "_gap_", startCharacterIndex, TextFormattingRunProperties.DefaultProperties);
span = span.AddNode(span4);
startCharacterIndex += num4;
}
else if (num4 < 0)
{
Int32 num5 = span3.Length + num4;
if (num5 <= 0)
{
continue;
}
span3 = new Span(startCharacterIndex, num5);
}
if (span3.Length > 0)
{
Int32 num6 = startCharacterIndex - _startCharacterIndex;
TextFormattingRunProperties textProperties = _classificationFormatMap.GetTextProperties(span2.Classification);
if ((span3.Length + num6) > length)
{
Int32 num7 = length - num6;
NormalizedSpan span5 = new NormalizedSpan(_text.Substring(span3.Start - _startCharacterIndex, num7), span2.Classification, span3.Start, textProperties);
span = span.AddNode(span5);
startCharacterIndex = _startCharacterIndex + length;
break;
}
NormalizedSpan span6 = new NormalizedSpan(_text.Substring(span3.Start - _startCharacterIndex, span3.Length), span2.Classification, span3.Start, textProperties);
span = span.AddNode(span6);
startCharacterIndex += span3.Length;
}
}
if (startCharacterIndex < (_startCharacterIndex + length))
{
Int32 num8 = length - (startCharacterIndex - _startCharacterIndex);
NormalizedSpan span7 = new NormalizedSpan(_text.Substring(startCharacterIndex - _startCharacterIndex, num8), "_gap_", startCharacterIndex, TextFormattingRunProperties.DefaultProperties);
span = span.AddNode(span7);
}
if (_startNode.Next != null)
{
_startNode = _startNode.Next;
_startNode.Previous = null;
}
}
IList <ClassificationSpan> IClassifier.GetClassificationSpans(SnapshotSpan toClassifySpan)
{
List <ClassificationSpan> list = new List <ClassificationSpan>();
if (_document.IsMassiveChangeInProgress)
{
return(list);
}
EnsureInitialized();
ITextSnapshot snapshot = toClassifySpan.Snapshot;
for (int i = GetFirstClassificationDataAfterOrAtPosition(toClassifySpan.Start, snapshot); i < _spansToClassify.Count; i++)
{
ClassificationData classificationData = _spansToClassify[i];
SnapshotSpan span = classificationData.TrackingSpan.GetSpan(snapshot);
if (span.Start >= toClassifySpan.End)
{
break;
}
Microsoft.VisualStudio.Text.Span span2 = Microsoft.VisualStudio.Text.Span.FromBounds(Math.Max(span.Start, toClassifySpan.Start), Math.Min(span.End, toClassifySpan.End));
SnapshotSpan arg_C4_0 = new SnapshotSpan(snapshot, span2);
IClassificationType classificationType = classificationData.ClassificationType;
ClassificationSpan item = new ClassificationSpan(arg_C4_0, classificationType);
list.Add(item);
}
return(list);
}
static List <ClassificationSpan> Merge(List <ClassificationSpan> list)
{
if (list.Count <= 1)
{
return(list);
}
var prev = list[0];
int read = 1, write = 0;
for (; read < list.Count; read++)
{
var a = list[read];
if (prev.ClassificationType == a.ClassificationType && prev.Span.End == a.Span.Start)
{
list[write] = prev = new ClassificationSpan(new SnapshotSpan(prev.Span.Start, a.Span.End), prev.ClassificationType);
}
else
{
prev = a;
list[++write] = a;
}
}
write++;
if (list.Count != write)
{
list.RemoveRange(write, list.Count - write);
}
return(list);
}
// This is called on a background thread.
public async Task <QuickInfoItem> GetQuickInfoItemAsync(IAsyncQuickInfoSession session, CancellationToken cancellationToken)
{
SnapshotPoint?triggerPoint = session.GetTriggerPoint(_buffer.CurrentSnapshot);
if (triggerPoint != null)
{
ITextSnapshotLine line = triggerPoint.Value.GetContainingLine();
IList <ClassificationSpan> spans = _classifier.GetClassificationSpans(line.Extent);
ClassificationSpan attrValue = spans.FirstOrDefault(s => s.ClassificationType.IsOfType("XML Attribute Value") && s.Span.Contains(triggerPoint.Value.Position));
if (attrValue != null)
{
ITrackingSpan id = _buffer.CurrentSnapshot.CreateTrackingSpan(attrValue.Span, SpanTrackingMode.EdgeInclusive);
var fileName = VsctCompletionSource.GetFileName(attrValue.Span.GetText());
// Image exist
if (!string.IsNullOrEmpty(fileName))
{
await ThreadHelper.JoinableTaskFactory.SwitchToMainThreadAsync();
var img = new Image
{
Source = new BitmapImage(new Uri(fileName)),
MaxHeight = 500
};
return(new QuickInfoItem(id, img));
}
}
}
return(null);
}
private bool FindMatchingCloseTag(List <ClassificationSpan> sortedTags, int indexTag, ITextSnapshot snapshot, out SnapshotSpan pairSpan)
{
pairSpan = new SnapshotSpan(snapshot, 1, 1);
try
{
ClassificationSpan currentTag = sortedTags[indexTag];
ITextSnapshotLine line = currentTag.Span.Start.GetContainingLine();
int lineNumber = line.LineNumber;
int nested = 0;
for (int i = indexTag + 1; i < sortedTags.Count; i++)
{
var closeTag = sortedTags[i];
if (closeTag.ClassificationType.IsOfType(ColorizerConstants.XSharpKwCloseFormat))
{
nested--;
if (nested < 0)
{
pairSpan = new SnapshotSpan(snapshot, closeTag.Span);
return(true);
}
}
else
{
nested++;
}
}
}
catch (Exception e)
{
XSettings.LogException(e, "FindMatchingCloseTag failed");
}
//
return(false);
}
public IList<ClassificationSpan> GetClassificationSpans(SnapshotSpan span) {
var result = new List<ClassificationSpan>();
var semanticModelResult = SemanticModelService.SemanticModelResult;
if(semanticModelResult == null) {
return result;
}
var classificationType = ClassificationTypeRegistryService.GetClassificationType(ClassificationTypeNames.DeadCode);
var extent = TextExtent.FromBounds(span.Start.Position, span.End.Position);
var diagnostics = semanticModelResult.CompilationUnit.Diagnostics;
var candidates = diagnostics.Where(diagnostic => diagnostic.Category == DiagnosticCategory.DeadCode)
.Where(d => d.Location.Extent.IntersectsWith(extent));
foreach (var diagnostic in candidates) {
var diagnosticSpan = new SnapshotSpan(semanticModelResult.Snapshot, new Span(diagnostic.Location.Start, diagnostic.Location.Length));
var classification = new ClassificationSpan(
diagnosticSpan.TranslateTo(span.Snapshot, SpanTrackingMode.EdgeExclusive),
classificationType);
result.Add(classification);
}
return result;
}
private bool IsAllowed(SnapshotPoint triggerPoint, out ClassificationSpan classificationType)
{
var line = triggerPoint.GetContainingLine().Extent;
var spans = _classifier.GetClassificationSpans(line).Where(c => c.Span.Contains(triggerPoint.Position - 1));
classificationType = spans.LastOrDefault();
if (spans.Any(c => c.ClassificationType.IsOfType(PredefinedClassificationTypeNames.SymbolDefinition)))
{
return(true);
}
bool isComment = spans.Any(c => c.ClassificationType.IsOfType(PredefinedClassificationTypeNames.Comment));
if (isComment)
{
return(false);
}
bool isString = spans.Any(c => c.ClassificationType.IsOfType(PredefinedClassificationTypeNames.String));
if (isString)
{
return(false);
}
return(true);
}
private ClassificationSpan GetCurrentXmlAttributeName(ITextSnapshot snapshot, ClassificationSpan containingSpan, IList <ClassificationSpan> spans)
{
ClassificationSpan currentAttr = spans
.Where(s => s.ClassificationType.IsOfType("XML Attribute") && s.Span.Start <= containingSpan.Span.Start)
.OrderByDescending(s => s.Span.Start.Position)
.FirstOrDefault();
if (currentAttr != null)
{
return(currentAttr);
}
IList <ClassificationSpan> allSpans = _classifier.GetClassificationSpans(new SnapshotSpan(containingSpan.Span.Snapshot, 0, containingSpan.Span.Snapshot.Length));
currentAttr = allSpans
.Where(s => s.ClassificationType.IsOfType("XML Name"))
.OrderByDescending(s => s.Span.Start.Position)
.FirstOrDefault();
if (currentAttr != null)
{
return(currentAttr);
}
return(null);
}
public IList <ClassificationSpan> GetClassificationSpans(SnapshotSpan span)
{
List <ClassificationSpan> spans = new List <ClassificationSpan>();
foreach (Declaration dec in Cache.Where(d => d.PropertyName.Text.Length > 0 && span.Start <= d.Start && span.End >= d.AfterEnd))
{
if (dec.IsVendorSpecific())
{
var ss = new SnapshotSpan(span.Snapshot, dec.Start, dec.Length);
var s = new ClassificationSpan(ss, _decClassification);
spans.Add(s);
}
if (dec.Semicolon == null)
{
continue;
}
int start = dec.Colon.AfterEnd;
int length = dec.AfterEnd - start;
if (span.Snapshot.Length > start + length)
{
var ss2 = new SnapshotSpan(span.Snapshot, start, length);
var s2 = new ClassificationSpan(ss2, _valClassification);
spans.Add(s2);
}
}
return(spans);
}
public IList<ClassificationSpan> GetClassificationSpans(SnapshotSpan span) {
var result = new List<ClassificationSpan>();
var parseResult = ParserService.ParseResult;
if (parseResult == null) {
return result;
}
var extent = TextExtent.FromBounds(span.Start.Position, span.End.Position);
foreach(var token in parseResult.SyntaxTree.Tokens[extent, includeOverlapping: true]) {
IClassificationType ct;
_classificationMap.TryGetValue(token.Classification, out ct);
if (ct == null) {
continue;
}
var tokenSpan = new SnapshotSpan(parseResult.Snapshot, new Span(token.Start, token.Length));
var classification = new ClassificationSpan(
tokenSpan.TranslateTo(span.Snapshot, SpanTrackingMode.EdgeExclusive),
ct);
result.Add(classification);
}
return result;
}
// TODO: track the snapshot version so we don't re-calculate for each signature?
private List <ClassificationSpan> GetReplacementSpans(SnapshotPoint point)
{
IList <ClassificationSpan> spans = this.classifier.GetClassificationSpans(point.GetContainingLine().Extent);
ClassificationSpan span = spans.FirstOrDefault(s => s.Span.Contains(point - 1));
if (span == null || !IsReplacementSpan(span))
{
return(null);
}
// expand to find entire replacement block...
int initialSpan = spans.IndexOf(span);
int firstSpan = initialSpan;
int lastSpan = initialSpan;
while (firstSpan > 0 && !spans[firstSpan].ClassificationType.IsOfType(TypeConstants.ReplacementStart))
{
--firstSpan;
}
while (lastSpan < spans.Count - 1 && !spans[lastSpan].ClassificationType.IsOfType(TypeConstants.ReplacementEnd))
{
++lastSpan;
}
return(spans.Skip(firstSpan).Take(lastSpan - firstSpan + 1).ToList());
}
private static void AssertFilenameClassified(ClassificationSpan classificationSpan, SnapshotSpan snapshotSpan)
{
var text = snapshotSpan.GetText();
var index = text.IndexOf(':');
index = text.IndexOf(':', index + 1);
AssertClassification(classificationSpan, OutputClassificationDefinitions.FindResultsFilename, snapshotSpan.Start.Position, index + 1);
}
private static string GetText(ITextSnapshot snapshot, ClassificationSpan start, ClassificationSpan target, bool includeEnd)
{
var nsLen = (includeEnd ? target.Span.End : target.Span.Start) - start.Span.End - 1;
var nsSpan = new SnapshotSpan(snapshot, start.Span.End + 1, nsLen);
var nsText = nsSpan.GetText().Trim();
return(nsText);
}
private static void AssertFilenameClassified(ClassificationSpan classificationSpan, SnapshotSpan snapshotSpan)
{
var text = snapshotSpan.GetText();
var index = Regex.Match(text, @"[:\\]").Index;
index = text.IndexOf(':', index + 1);
AssertClassification(classificationSpan, ClassificationTypeDefinitions.FindResultsFilename, snapshotSpan.Start.Position, index + 1);
}
private IList <ClassificationSpan> GetFallbackClassificationSpans(SnapshotSpan span)
{
var cs = new ClassificationSpan(span, Classifier.ProbeClassifier.GetClassificationType(Classifier.ProbeClassifierType.Normal));
var ret = new List <ClassificationSpan>();
ret.Add(cs);
return(ret);
}
public SnapshotParser(ITextSnapshot snapshot, IClassifier classifier)
{
Snapshot = snapshot;
Classifier = classifier;
ClassificationSpans = Classifier.GetClassificationSpans(new SnapshotSpan(Snapshot, 0, snapshot.Length));
foreach (ClassificationSpan s in ClassificationSpans)
SpanIndex.Add(s.Span.Start.Position, s);
CurrentPoint = Snapshot.GetLineFromLineNumber(0).Start;
if (SpanIndex.ContainsKey(0))
CurrentSpan = SpanIndex[0];
}
public void MergingTwoEqualFollowingDifferentReturnsDifferentFollowedByMerged()
{
var different = new ClassificationSpan(new Mock<IClassification>().Object, new TextSpan(null, new Span(0, 1)));
var classification = new Mock<IClassification>().Object;
var classificationSpans = new[]
{
different,
new ClassificationSpan(classification, new TextSpan(null, new Span(1, 1))),
new ClassificationSpan(classification, new TextSpan(null, new Span(2, 1)))
};
CollectionAssert.AreEqual(
new[] {different, new ClassificationSpan(classification, new TextSpan(null, new Span(1, 2)))},
ClassificationSpans.Merge(classificationSpans).ToArray());
}
/// <summary>
/// Moves forward by one char or one classification span
/// </summary>
/// <returns>true, if moved</returns>
public bool MoveNext()
{
if (!AtEnd())
{
CurrentPoint = CurrentSpan != null ? CurrentSpan.Span.End : CurrentPoint + 1;
if (SpanIndex.ContainsKey(CurrentPoint.Position))
CurrentSpan = SpanIndex[CurrentPoint.Position];
else
CurrentSpan = null;
return true;
}
return false;
}
public static CompletionAnalysis Make(ClassificationSpan start, ClassificationSpan end, Span loc,
ITextSnapshot snapshot, ITrackingSpan span, ITextBuffer buffer, bool isSpace)
{
if (start == end) {
return new ImportCompletionAnalysis(String.Empty, loc.Start, span, buffer);
} else if (!isSpace) {
int nsLen = end.Span.End - start.Span.End - 1;
var nsSpan = new SnapshotSpan(snapshot, start.Span.End + 1, nsLen);
var text = nsSpan.GetText().Trim();
return new ImportCompletionAnalysis(text, loc.Start, span, buffer);
} else {
return EmptyCompletionContext;
}
}
public static CompletionAnalysis Make(IList<ClassificationSpan> classifications, ClassificationSpan start,
Span loc, ITextSnapshot snapshot, ITrackingSpan span, ITextBuffer buffer, bool isSpace)
{
if (classifications.Count == 1) {
return new ImportCompletionAnalysis(String.Empty, loc.Start, span, buffer);
}
ClassificationSpan imp = null;
for (int i = 1; i < classifications.Count; i++) {
if (IsKeyword(classifications[i], "import")) {
imp = classifications[i];
}
}
var end = classifications[classifications.Count - 1];
if (imp == null) {
if (isSpace) {
return EmptyCompletionContext;
}
// from [completion]
// or
// from xxx.[completion]
// or
// from xxx[Ctrl-Space completion]
return new ImportCompletionAnalysis(GetText(snapshot, start, end, true), loc.Start, span, buffer);
}
// from xyz import [completion]
// or
// from xyz import abc[Ctrl-Space completion]
var nsText = GetText(snapshot, start, imp, false);
string itemText;
if (Object.ReferenceEquals(end, imp)) {
itemText = String.Empty;
} else {
if (isSpace) {
return EmptyCompletionContext;
}
var itemLen = end.Span.End - imp.Span.End - 1;
var itemSpan = new SnapshotSpan(snapshot, imp.Span.End + 1, itemLen);
itemText = itemSpan.GetText();
}
return new FromImportCompletionAnalysis(itemText, loc.Start, span, buffer, nsText);
}
public IList<ClassificationSpan> GetClassificationSpans(SnapshotSpan span)
{
List<ClassificationSpan> spans = new List<ClassificationSpan>();
foreach (SimpleSelector selector in _cache)
{
int start = span.Start.Position;
int end = span.End.Position;
if (selector.Start >= start && selector.AfterEnd <= end)
{
var snapShotSpan = new SnapshotSpan(span.Snapshot, selector.Start, selector.Length);
var classSpan = new ClassificationSpan(snapShotSpan, _modernizrClassification);
spans.Add(classSpan);
}
}
return spans;
}
public IList<ClassificationSpan> GetClassificationSpans(SnapshotSpan span)
{
List<ClassificationSpan> spans = new List<ClassificationSpan>();
int start = span.Start.Position;
int end = span.End.Position;
foreach (Declaration dec in _cache.Skip(_cache.FindInsertIndex(start, true)))
{
var snapShotSpan = new SnapshotSpan(span.Snapshot, dec.PropertyName.Start, dec.PropertyName.Length);
var classSpan = new ClassificationSpan(snapShotSpan, _variableClassification);
spans.Add(classSpan);
if (dec.PropertyName.AfterEnd > end)
break;
}
return spans;
}
public IList<ClassificationSpan> GetClassificationSpans(SnapshotSpan span)
{
List<ClassificationSpan> spans = new List<ClassificationSpan>();
foreach (TokenItem item in _cache)
{
int start = span.Start.Position;
int end = span.End.Position;
if (item.Start >= start && item.AfterEnd <= end)
{
var snapShotSpan = new SnapshotSpan(span.Snapshot, item.Start - 1, item.Length + 1);
var classSpan = new ClassificationSpan(snapShotSpan, _importantClassification);
spans.Add(classSpan);
}
}
return spans;
}
/// <summary>
/// Moves forward by one char or one classification span
/// </summary>
/// <returns>true, if moved</returns>
public bool MoveNext()
{
if (!AtEnd()) {
//operators are processed char by char, because the classifier can merge several operators into one span (like "]]", "[]")
CurrentPoint = CurrentSpan != null
&& CurrentSpan.ClassificationType.Classification != "operator"
&& CurrentSpan.ClassificationType.Classification != "punctuation"
? CurrentSpan.Span.End
: CurrentPoint + 1;
if (SpanIndex.ContainsKey(CurrentPoint.Position)) {
CurrentSpan = SpanIndex[CurrentPoint.Position];
} else if (CurrentSpan != null && CurrentPoint.Position >= CurrentSpan.Span.End.Position) {
//we're out of current span
CurrentSpan = null;
}
return true;
}
return false;
}
private static bool IsUnterminatedStringToken(ClassificationSpan lastToken) {
if (lastToken.ClassificationType.IsOfType(PredefinedClassificationTypeNames.String)) {
var text = lastToken.Span.GetText();
if (text.EndsWith("\"") || text.EndsWith("'")) {
return false;
}
return true;
}
return false;
}
private bool IsAllowed(SnapshotPoint triggerPoint, out ClassificationSpan classificationType)
{
var line = triggerPoint.GetContainingLine().Extent;
var spans = _classifier.GetClassificationSpans(line).Where(c => c.Span.Contains(triggerPoint.Position - 1));
classificationType = spans.LastOrDefault();
if (spans.Any(c => c.ClassificationType.IsOfType(PredefinedClassificationTypeNames.SymbolDefinition)))
return true;
bool isComment = spans.Any(c => c.ClassificationType.IsOfType(PredefinedClassificationTypeNames.Comment));
if (isComment) return false;
bool isString = spans.Any(c => c.ClassificationType.IsOfType(PredefinedClassificationTypeNames.String));
if (isString) return false;
return true;
}
/// <summary>
/// Gets the classifications from <see cref="VisualCobraTokenizer"/>.
/// </summary>
/// <param name="span">The span to get classifications from.</param>
/// <param name="tokCobra">The tokenizer to use.</param>
/// <returns>A list of <see cref="ClassificationSpan"/> objects representing the classifications
/// in <paramref name="span"/>.</returns>
private static List<ClassificationSpan> GetClassificationsFromCobraTokenizer(SnapshotSpan span, VisualCobraTokenizer tokCobra)
{
// Tried parallelising, but I'm not sure it's safe in combination with "previous".
var classifications = new List<ClassificationSpan>();
IToken previous = null;
foreach (var tok in tokCobra.AllTokens())
{
if (tok.IsKeyword)
{
var tokenSpan = new SnapshotSpan(span.Snapshot, new Span(span.Start.Position + tok.CharNum - 1, tok.Length)); // +1
var cs = new ClassificationSpan(tokenSpan, _cobraKeywordClassificationType);
classifications.Add(cs);
}
else
{
switch (tok.Which)
{
case "STRING_SINGLE":
case "STRING_DOUBLE":
case "CHAR":
case "CHAR_LIT_SINGLE":
AddSpanToClassifications(span, classifications, tok, tok.Length, _cobraStringClassificationType);
break;
case "ID": // Note "CLASS" is the class keyword, not "a class"
if (IsClass(tok))
{
AddSpanToClassifications(span, classifications, tok, tok.Length, _cobraClassClassificationType);
}
break;
case "QUESTION":
{
if (IsClass(previous))
{
// add another char to cover the ? on the end of a nillable class
AddSpanToClassifications(span, classifications, tok, 1, _cobraClassClassificationType);
}
break;
}
case "COMMENT":
AddSpanToClassifications(span, classifications, tok, tok.Length, _cobraCommentClassificationType);
break;
}
previous = tok;
}
}
return classifications;
}
/// <summary>
/// Creates a <see cref="ClassificationSpan"/> from the supplied span and token, and
/// adds it to the supplied classifications.
/// </summary>
/// <param name="span">The snapshop span.</param>
/// <param name="classifications">The classifications.</param>
/// <param name="tok">The token.</param>
/// <param name="tokenLength">Length of the token.</param>
/// <param name="classificationType">Type of the classification.</param>
private static void AddSpanToClassifications(SnapshotSpan span, List<ClassificationSpan> classifications, IToken tok, int tokenLength, IClassificationType classificationType)
{
var tokenSpan = new SnapshotSpan(span.Snapshot, new Span(span.Start.Position + tok.CharNum - 1, tokenLength));
var cs = new ClassificationSpan(tokenSpan, classificationType);
classifications.Add(cs);
}
private static bool IsPropertyValue(ClassificationSpan classification)
{
return classification.ClassificationType.Classification == "CSS Property Value";
}
private static bool StartsGrouping(ClassificationSpan token)
{
return token.ClassificationType.IsOfType("OpenGroupingClassification");
}
private static string GetText(ITextSnapshot snapshot, ClassificationSpan start, ClassificationSpan target, bool includeEnd) {
var nsLen = (includeEnd ? target.Span.End : target.Span.Start) - start.Span.End - 1;
var nsSpan = new SnapshotSpan(snapshot, start.Span.End + 1, nsLen);
var nsText = nsSpan.GetText().Trim();
return nsText;
}
void Add(List<LinePart> list, int column, ClassificationSpan cspan, SnapshotSpan lineExtent) {
if (cspan.Span.Length == 0)
return;
int startOffs = lineExtent.Start.Position;
var props = classificationFormatMap.GetTextProperties(cspan.ClassificationType);
if (list.Count > 0) {
var last = list[list.Count - 1];
if (last.AdornmentElement == null && last.TextRunProperties == props && last.Span.End == cspan.Span.Start) {
list[list.Count - 1] = new LinePart(list.Count - 1, last.Column, Span.FromBounds(last.Span.Start - startOffs, cspan.Span.End - startOffs), last.TextRunProperties);
return;
}
}
list.Add(new LinePart(list.Count, column, new Span(cspan.Span.Span.Start - startOffs, cspan.Span.Span.Length), props));
}
private static bool TryCreateClassificationSpan(
SnapshotSpan span,
IToken token, IClassificationType type,
out ClassificationSpan classificationSpan)
{
classificationSpan = null;
if (token.Text == null)
return false;
var length = token.Text.Length;
var start = span.Start.Position + token.CharPositionInLine;
var snapshotSpan = new SnapshotSpan(span.Snapshot, start, length);
classificationSpan = new ClassificationSpan(snapshotSpan, type);
return true;
}
private static bool EndsGrouping(ClassificationSpan token)
{
return token.ClassificationType.IsOfType("CloseGroupingClassification");
}
private static bool ShouldDedentAfterKeyword(ClassificationSpan span) {
return span.ClassificationType.Classification == PredefinedClassificationTypeNames.Keyword && ShouldDedentAfterKeyword(span.Span.GetText());
}
private static bool IsSelector(ClassificationSpan classification)
{
return classification.ClassificationType.Classification == "CSS Selector";
}
public IList<ClassificationSpan> GetClassificationSpans(SnapshotSpan span)
{
if (!EnsureInitialized())
{
return new ClassificationSpan[0];
}
var currentFile = _buffer.GetFileName().ToLowerInvariant();
if (string.IsNullOrEmpty(currentFile))
{
return new ClassificationSpan[0];
}
var document = DocumentFactory.GetDocument(currentFile);
if (document == null)
{
return new ClassificationSpan[0];
}
var spans = new List<ClassificationSpan>();
var sheetRules = new HashSet<IStylingRule>(document.Rules);
using (AmbientRuleContext.GetOrCreate())
{
foreach (var unusedRule in UsageRegistry.GetAllUnusedRules(sheetRules))
{
if (unusedRule.Offset + unusedRule.Length > span.Snapshot.Length)
{
continue;
}
var ss = new SnapshotSpan(span.Snapshot, unusedRule.Offset, unusedRule.SelectorLength);
var s = new ClassificationSpan(ss, _decClassification);
spans.Add(s);
}
}
return spans;
}
internal static bool IsKeyword(ClassificationSpan token, string keyword)
{
return token.ClassificationType.Classification == PredefinedClassificationTypeNames.Keyword && token.Span.GetText() == keyword;
}