/// <summary>
/// Creates a tag provider for the specified buffer
/// </summary>
/// <typeparam name="T">The tag type</typeparam>
/// <param name="buffer">The text buffer</param>
/// <returns>The tag provider for the specified buffer or null if the buffer is null or the spelling
/// service is unavailable.</returns>
public ITagger <T> CreateTagger <T>(ITextBuffer buffer) where T : ITag
{
if (buffer == null || buffer.ContentType.IsOfType("R Markdown"))
{
return(null);
}
#pragma warning disable VSTHRD010
var config = SpellingServiceProxy.GetConfiguration(buffer);
#pragma warning restore VSTHRD010
if (config == null)
{
return(null);
}
// Markdown has its own tagger
if (buffer.ContentType.IsOfType("Markdown"))
{
return(new MarkdownTextTagger(buffer, classifierAggregatorService.GetClassifier(buffer),
config.IgnoredClassificationsFor(buffer.ContentType.TypeName)) as ITagger <T>);
}
// Due to an issue with the built-in C# classifier, we avoid using it. This also lets us provide
// configuration options to exclude certain elements from being spell checked if not wanted.
// Through the configuration options, we can also specify this tagger be used for all C-style
// code. Not all configuration options will apply but the structure is similar enough to make
// most of them relevant.
string filename = buffer.GetFilename();
if (buffer.ContentType.IsOfType("csharp") || (config.CSharpOptions.ApplyToAllCStyleLanguages &&
ClassifierFactory.IsCStyleCode(filename)))
{
// The C# options are passed to the tagger for local use since it tracks the state of the
// lines in the buffer. Changing the global options will require that any open editors be
// closed and reopened for the changes to take effect.
return(new CSharpCommentTextTagger(buffer)
{
SupportsOldStyleXmlDocComments = ClassifierFactory.SupportsOldStyleXmlDocComments(filename),
IgnoreXmlDocComments = config.CSharpOptions.IgnoreXmlDocComments,
IgnoreDelimitedComments = config.CSharpOptions.IgnoreDelimitedComments,
IgnoreStandardSingleLineComments = config.CSharpOptions.IgnoreStandardSingleLineComments,
IgnoreQuadrupleSlashComments = config.CSharpOptions.IgnoreQuadrupleSlashComments,
IgnoreNormalStrings = config.CSharpOptions.IgnoreNormalStrings,
IgnoreVerbatimStrings = config.CSharpOptions.IgnoreVerbatimStrings,
IgnoreInterpolatedStrings = config.CSharpOptions.IgnoreInterpolatedStrings,
IgnoredXmlElements = config.IgnoredXmlElements,
SpellCheckedAttributes = config.SpellCheckedXmlAttributes
} as ITagger <T>);
}
return(new CommentTextTagger(buffer, classifierAggregatorService.GetClassifier(buffer),
config.IgnoredXmlElements, config.SpellCheckedXmlAttributes,
config.IgnoredClassificationsFor(buffer.ContentType.TypeName)) as ITagger <T>);
}
//=====================================================================
/// <summary>
/// Constructor
/// </summary>
/// <param name="buffer">The text buffer</param>
/// <param name="view">The text view</param>
/// <param name="naturalTextAggregator">The tag aggregator</param>
/// <param name="urlAggregator">The URL aggregator</param>
/// <param name="configuration">The spell checker configuration to use</param>
/// <param name="dictionary">The spelling dictionary to use</param>
public SpellingTagger(ITextBuffer buffer, ITextView view,
ITagAggregator <INaturalTextTag> naturalTextAggregator, ITagAggregator <IUrlTag> urlAggregator,
SpellCheckerConfiguration configuration, SpellingDictionary dictionary)
{
_isClosed = false;
_buffer = buffer;
_naturalTextAggregator = naturalTextAggregator;
_urlAggregator = urlAggregator;
_dispatcher = Dispatcher.CurrentDispatcher;
this.configuration = configuration;
_dictionary = dictionary;
_dirtySpans = new List <SnapshotSpan>();
_misspellings = new List <MisspellingTag>();
wordsIgnoredOnce = new List <IgnoredOnceWord>();
inlineIgnoredWords = new List <InlineIgnoredWord>();
string filename = buffer.GetFilename();
wordSplitter = new WordSplitter
{
Configuration = configuration,
Mnemonic = ClassifierFactory.GetMnemonic(filename),
IsCStyleCode = ClassifierFactory.IsCStyleCode(filename)
};
_buffer.Changed += BufferChanged;
_naturalTextAggregator.TagsChanged += AggregatorTagsChanged;
_urlAggregator.TagsChanged += AggregatorTagsChanged;
_dictionary.DictionaryUpdated += DictionaryUpdated;
_dictionary.ReplaceAll += ReplaceAll;
_dictionary.IgnoreOnce += IgnoreOnce;
view.Closed += ViewClosed;
// Strings in SQL script can contain escaped single quotes which are apostrophes. Unescape them
// so that they are spell checked correctly.
unescapeApostrophes = buffer.ContentType.IsOfType("SQL Server Tools");
// To start with, the entire buffer is dirty. Split this into chunks so we update pieces at a time.
ITextSnapshot snapshot = _buffer.CurrentSnapshot;
foreach (var line in snapshot.Lines)
{
AddDirtySpan(line.Extent);
}
}