public ITagger <T> CreateTagger <T>(ITextBuffer buffer)
where T : ITag
{
ITagger <IOutliningRegionTag> CreateBufferTagger()
{
Language language = DocumentItem.GetLanguage(buffer);
ThreadHelper.ThrowIfNotOnUIThread();
ITagger <IOutliningRegionTag> tagger;
if (MainPackage.RegionOptions.IsSupported(language) && ScanInfo.TryGet(language, out ScanInfo scanInfo))
{
tagger = new OutliningTagger(buffer, scanInfo);
}
else
{
tagger = NonOutliningTagger.Instance;
}
return(tagger);
}
ITagger <IOutliningRegionTag> result = buffer.Properties.GetOrCreateSingletonProperty(CreateBufferTagger);
return(result as ITagger <T>);
}
public string Stream(Language language)
{
string singleLineCommentDelimiter = null;
if (ScanInfo.TryGet(language, out ScanInfo scanInfo))
{
singleLineCommentDelimiter = scanInfo.TryGetSingleLineCommentDelimiter();
}
StringBuilder sb = new();
int numLines = this.lines.Length;
bool startOfLine = true;
for (int i = 0; i < numLines; i++)
{
string line = this.lines[i];
RemoveLinePrefix(ref line, singleLineCommentDelimiter);
if (string.IsNullOrEmpty(line))
{
sb.Append("\r\n");
startOfLine = true;
}
else
{
if (startOfLine)
{
if (sb.Length > 0)
{
sb.Append("\r\n");
}
}
else
{
sb.Append(' ');
}
sb.Append(line);
startOfLine = false;
}
}
if (this.endsInHardReturn)
{
sb.Append("\r\n");
}
return(sb.ToString());
}
public ITagger <T> CreateTagger <T>(ITextBuffer buffer)
where T : ITag
{
Func <OutliningTagger> createBufferTagger = () =>
{
Language language = DocumentItem.GetLanguage(buffer);
ScanInfo scanInfo;
ScanInfo.TryGet(language, out scanInfo);
return(new OutliningTagger(buffer, scanInfo));
};
OutliningTagger result = buffer.Properties.GetOrCreateSingletonProperty <OutliningTagger>(createBufferTagger);
return(result as ITagger <T>);
}
private static bool GetCommentStyle(
Language language,
bool useVsIndentation,
bool preferEndDelimited,
out string beginDelimiter,
out string endDelimiter)
{
beginDelimiter = null;
endDelimiter = null;
if (ScanInfo.TryGet(language, out ScanInfo scanInfo))
{
if (preferEndDelimited)
{
(beginDelimiter, endDelimiter) = scanInfo.TryGetMultiLineCommentDelimiters();
}
// If multiLine was preferred but missing (e.g., VB), then we have to return the singleLine.
if (string.IsNullOrEmpty(beginDelimiter))
{
beginDelimiter = scanInfo.TryGetSingleLineCommentDelimiter();
}
// If singleLine was preferred but missing (e.g., HTML, XML), then we have to return the multiLine.
if (!preferEndDelimited && string.IsNullOrEmpty(beginDelimiter))
{
(beginDelimiter, endDelimiter) = scanInfo.TryGetMultiLineCommentDelimiters();
}
}
switch (language)
{
case Language.VB:
// VB's auto-formatter throws out leading indentation and indents all comments to
// one level under their parent. So I won't use my default indentation style for it.
useVsIndentation = true;
break;
case Language.VBScript:
// In VS 2012, the VBScript language service has selection bugs when commenting
// and uncommenting, so I'll always use my indentation style for it.
useVsIndentation = false;
break;
}
return(useVsIndentation);
}
