private void BufferChanged(object sender, TextContentChangedEventArgs e)
{
// Non-incremental parse. Future work: if performance becomes a problem, it would
// probably be best to make the lexical analyzer incremental, then
// do a full parse.
ITextSnapshot snapshot = _buffer.CurrentSnapshot;
if (TagsChanged != null)
{
ParserDetails foo = new ParserDetails();
ITextDocument doc = _buffer.GetTextDocument();
string f = doc.FilePath;
ParserDetails._per_file_parser_details[f] = foo;
IVsTextView vstv = IVsTextViewExtensions.GetIVsTextView(f);
IWpfTextView wpftv = vstv.GetIWpfTextView();
if (wpftv == null)
{
return;
}
ITextBuffer tb = wpftv.TextBuffer;
foo.Parse(tb.GetBufferText(), f);
TagsChanged(this, new SnapshotSpanEventArgs(new SnapshotSpan(snapshot, new Span(0, snapshot.Length))));
}
}
private void RenameCallback(object sender, EventArgs e)
{
// Highlight the symbol, reposition it to the beginning of it.
// Every character changes all occurrences of the symbol.
// First, open up every .g4 file in project and parse.
DTE application = DteExtensions.GetApplication();
if (application != null)
{
IEnumerable <ProjectItem> iterator = DteExtensions.SolutionFiles(application);
ProjectItem[] list = iterator.ToArray();
foreach (var item in list)
{
//var doc = item.Document; CRASHES!!!! DO NOT USE!
//var props = item.Properties;
string file_name = item.Name;
if (file_name != null)
{
string prefix = file_name.TrimSuffix(".g4");
if (prefix == file_name)
{
continue;
}
try
{
object prop = item.Properties.Item("FullPath").Value;
string ffn = (string)prop;
if (!ParserDetails._per_file_parser_details.ContainsKey(ffn))
{
StreamReader sr = new StreamReader(ffn);
ParserDetails foo = new ParserDetails();
ParserDetails._per_file_parser_details[ffn] = foo;
foo.Parse(sr.ReadToEnd(), ffn);
}
}
catch (Exception eeks)
{ }
}
}
}
string classification = this.Classification;
SnapshotSpan span = this.Symbol;
ITextView view = this.View;
// First, find out what this view is, and what the file is.
ITextBuffer buffer = view.TextBuffer;
ITextDocument doc = buffer.GetTextDocument();
string path = doc.FilePath;
IVsTextView vstv = IVsTextViewExtensions.GetIVsTextView(path);
List <IToken> where = new List <IToken>();
List <ParserDetails> where_details = new List <ParserDetails>();
IToken token = null;
foreach (var kvp in ParserDetails._per_file_parser_details)
{
string file_name = kvp.Key;
ParserDetails details = kvp.Value;
if (classification == AntlrVSIX.Constants.ClassificationNameNonterminal)
{
var it = details._ant_nonterminals.Where(
(t) => t.Text == span.GetText());
where.AddRange(it);
foreach (var i in it)
{
where_details.Add(details);
}
}
else if (classification == AntlrVSIX.Constants.ClassificationNameTerminal)
{
var it = details._ant_terminals.Where(
(t) => t.Text == span.GetText());
where.AddRange(it);
foreach (var i in it)
{
where_details.Add(details);
}
}
else if (classification == AntlrVSIX.Constants.ClassificationNameLiteral)
{
var it = details._ant_literals.Where(
(t) => t.Text == span.GetText());
where.AddRange(it);
foreach (var i in it)
{
where_details.Add(details);
}
}
}
if (!where.Any())
{
return;
}
IWpfTextView wpftv = vstv.GetIWpfTextView();
if (wpftv == null)
{
return;
}
// Create new span in the appropriate view.
ITextSnapshot cc = wpftv.TextBuffer.CurrentSnapshot;
SnapshotSpan ss = new SnapshotSpan(cc, span.Start.Position, 1);
SnapshotPoint sp = ss.Start;
// Enable highlighter.
RenameHighlightTagger.Enabled = true;
// Put cursor on symbol.
wpftv.Caret.MoveTo(sp); // This sets cursor, bot does not center.
}
private void UpdateWordAdornments(object threadContext)
{
if (!Enabled)
{
return;
}
Enabled = false;
SnapshotPoint currentRequest = RequestedPoint;
List <SnapshotSpan> wordSpans = new List <SnapshotSpan>();
// Find all words in the buffer like the one the caret is on
TextExtent word = TextStructureNavigator.GetExtentOfWord(currentRequest);
bool foundWord = true;
// If we've selected something not worth highlighting, we might have
// missed a "word" by a little bit
if (!WordExtentIsValid(currentRequest, word))
{
// Before we retry, make sure it is worthwhile
if (word.Span.Start != currentRequest ||
currentRequest == currentRequest.GetContainingLine().Start ||
char.IsWhiteSpace((currentRequest - 1).GetChar()))
{
foundWord = false;
}
else
{
// Try again, one character previous. If the caret is at the end of a word, then
// this will pick up the word we are at the end of.
word = TextStructureNavigator.GetExtentOfWord(currentRequest - 1);
// If we still aren't valid the second time around, we're done
if (!WordExtentIsValid(currentRequest, word))
{
foundWord = false;
}
}
}
if (!foundWord)
{
// If we couldn't find a word, just clear out the existing markers
SynchronousUpdate(currentRequest, new NormalizedSnapshotSpanCollection(), null);
return;
}
SnapshotSpan currentWord = word.Span;
// If this is the same word we currently have, we're done (e.g. caret moved within a word).
if (CurrentWord.HasValue && currentWord == CurrentWord)
{
return;
}
/* Find spans using simple text search....
* FindData findData = new FindData(currentWord.GetText(), currentWord.Snapshot);
* findData.FindOptions = FindOptions.WholeWord | FindOptions.MatchCase;
* wordSpans.AddRange(TextSearchService.FindAll(findData));
*/
// Verify current word is a grammar symbol.
// Now, check for valid classification type.
string classification = null;
ClassificationSpan[] c1 = _aggregator.GetClassificationSpans(currentWord).ToArray();
foreach (ClassificationSpan cl in c1)
{
classification = cl.ClassificationType.Classification.ToLower();
if (classification == AntlrVSIX.Constants.ClassificationNameTerminal)
{
break;
}
else if (classification == AntlrVSIX.Constants.ClassificationNameNonterminal)
{
break;
}
}
if (classification == null)
{
return;
}
SnapshotSpan span = currentWord;
ITextView view = this.View;
// First, find out what this view is, and what the file is.
ITextBuffer buffer = view.TextBuffer;
ITextDocument doc = buffer.GetTextDocument();
string path = doc.FilePath;
List <IToken> where = new List <IToken>();
List <ParserDetails> where_details = new List <ParserDetails>();
IToken token = null;
foreach (var kvp in ParserDetails._per_file_parser_details)
{
string file_name = kvp.Key;
ParserDetails details = kvp.Value;
if (classification == AntlrVSIX.Constants.ClassificationNameNonterminal)
{
var it = details._ant_nonterminals.Where(
(t) => t.Text == span.GetText());
where.AddRange(it);
foreach (var i in it)
{
where_details.Add(details);
}
}
else if (classification == AntlrVSIX.Constants.ClassificationNameTerminal)
{
var it = details._ant_terminals.Where(
(t) => t.Text == span.GetText());
where.AddRange(it);
foreach (var i in it)
{
where_details.Add(details);
}
}
else if (classification == AntlrVSIX.Constants.ClassificationNameLiteral)
{
var it = details._ant_literals.Where(
(t) => t.Text == span.GetText());
where.AddRange(it);
foreach (var i in it)
{
where_details.Add(details);
}
}
}
if (!where.Any())
{
return;
}
// Populate the Antlr find results model/window with file/line/col info
// for each occurrence.
var results = new List <Entry>();
for (int i = 0; i < where.Count; ++i)
{
IToken x = where[i];
ParserDetails y = where_details[i];
var w = new Entry()
{
FileName = y.full_file_name, LineNumber = x.Line, ColumnNumber = x.Column, Token = x
};
results.Add(w);
}
// Now, for all entries which are in this buffer, highlight.
//wordSpans.Add(currentWord);
for (int i = 0; i < results.Count; ++i)
{
var w = results[i];
if (w.FileName == path)
{
// Create new span in the appropriate view.
ITextSnapshot cc = buffer.CurrentSnapshot;
SnapshotSpan ss = new SnapshotSpan(cc, w.Token.StartIndex, 1 + w.Token.StopIndex - w.Token.StartIndex);
SnapshotPoint sp = ss.Start;
wordSpans.Add(ss);
}
}
// If we are still up-to-date (another change hasn't happened yet), do a real update
if (currentRequest == RequestedPoint)
{
SynchronousUpdate(currentRequest, new NormalizedSnapshotSpanCollection(wordSpans), currentWord);
}
// Call up the rename dialog box. In another thread because
// of "The calling thread must be STA, because many UI components require this."
// error.
Application.Current.Dispatcher.Invoke((Action) delegate {
RenameDialogBox inputDialog = new RenameDialogBox(currentWord.GetText());
if (inputDialog.ShowDialog() == true)
{
results.Reverse();
var new_name = inputDialog.Answer;
// Replace all occurrences of symbol, working backwards.
foreach (Entry e in results)
{
string file_name = e.FileName;
var pd = ParserDetails._per_file_parser_details[file_name];
IVsTextView vstv = IVsTextViewExtensions.GetIVsTextView(file_name);
IWpfTextView wpftv = vstv.GetIWpfTextView();
if (wpftv == null)
{
// File has not been opened before! Open file in editor.
IVsTextViewExtensions.ShowFrame(file_name);
vstv = IVsTextViewExtensions.GetIVsTextView(file_name);
wpftv = vstv.GetIWpfTextView();
}
ITextBuffer tb = wpftv.TextBuffer;
ITextSnapshot cc = tb.CurrentSnapshot;
SnapshotSpan ss = new SnapshotSpan(cc, e.Token.StartIndex, 1 + e.Token.StopIndex - e.Token.StartIndex);
SnapshotPoint sp = ss.Start;
tb.Replace(ss, new_name);
}
// Reparse everything.
foreach (string f in results.Select((e) => e.FileName).Distinct())
{
ParserDetails foo = new ParserDetails();
ParserDetails._per_file_parser_details[f] = foo;
IVsTextView vstv = IVsTextViewExtensions.GetIVsTextView(f);
IWpfTextView wpftv = vstv.GetIWpfTextView();
if (wpftv == null)
{
continue;
}
ITextBuffer tb = wpftv.TextBuffer;
foo.Parse(tb.GetBufferText(), f);
}
}
});
}
private void MenuItemCallback(object sender, EventArgs e)
{
////////////////////////
// Go to definition....
////////////////////////
// First, open up every .g4 file in project.
// Get VS solution, if any, and parse all grammars
DTE application = DteExtensions.GetApplication();
if (application != null)
{
IEnumerable <ProjectItem> iterator = DteExtensions.SolutionFiles(application);
ProjectItem[] list = iterator.ToArray();
foreach (var item in list)
{
//var doc = item.Document; CRASHES!!!! DO NOT USE!
//var props = item.Properties;
string file_name = item.Name;
if (file_name != null)
{
string prefix = file_name.TrimSuffix(".g4");
if (prefix == file_name)
{
continue;
}
try
{
object prop = item.Properties.Item("FullPath").Value;
string ffn = (string)prop;
if (!ParserDetails._per_file_parser_details.ContainsKey(ffn))
{
StreamReader sr = new StreamReader(ffn);
ParserDetails foo = new ParserDetails();
ParserDetails._per_file_parser_details[ffn] = foo;
foo.Parse(sr.ReadToEnd(), ffn);
}
} catch (Exception eeks)
{ }
}
}
}
string classification = this.Classification;
SnapshotSpan span = this.Symbol;
ITextView view = this.View;
// First, find out what this view is, and what the file is.
ITextBuffer buffer = view.TextBuffer;
ITextDocument doc = buffer.GetTextDocument();
string path = doc.FilePath;
//ParserDetails details = null;
//bool found = ParserDetails._per_file_parser_details.TryGetValue(path, out details);
//if (!found) return;
List <IToken> where = new List <IToken>();
List <ParserDetails> where_details = new List <ParserDetails>();
IToken token = null;
foreach (var kvp in ParserDetails._per_file_parser_details)
{
string file_name = kvp.Key;
ParserDetails details = kvp.Value;
if (classification == AntlrVSIX.Constants.ClassificationNameNonterminal)
{
var it = details._ant_nonterminals_defining.Where(
(t) => t.Text == span.GetText());
where.AddRange(it);
foreach (var i in it)
{
where_details.Add(details);
}
}
else if (classification == AntlrVSIX.Constants.ClassificationNameTerminal)
{
var it = details._ant_terminals_defining.Where(
(t) => t.Text == span.GetText());
where.AddRange(it);
foreach (var i in it)
{
where_details.Add(details);
}
}
}
if (where.Any())
{
token = where.First();
}
else
{
return;
}
ParserDetails where_token = where_details.First();
string full_file_name = where_token.full_file_name;
IVsTextView vstv = IVsTextViewExtensions.GetIVsTextView(full_file_name);
IVsTextViewExtensions.ShowFrame(full_file_name);
vstv = IVsTextViewExtensions.GetIVsTextView(where_token.full_file_name);
IWpfTextView wpftv = vstv.GetIWpfTextView();
if (wpftv == null)
{
return;
}
int line_number;
int colum_number;
vstv.GetLineAndColumn(token.StartIndex, out line_number, out colum_number);
// Create new span in the appropriate view.
ITextSnapshot cc = wpftv.TextBuffer.CurrentSnapshot;
SnapshotSpan ss = new SnapshotSpan(cc, token.StartIndex, 1);
SnapshotPoint sp = ss.Start;
// Put cursor on symbol.
wpftv.Caret.MoveTo(sp); // This sets cursor, bot does not center.
// Center on cursor.
//wpftv.Caret.EnsureVisible(); // This works, sort of. It moves the scroll bar, but it does not CENTER! Does not really work!
if (line_number > 0)
{
vstv.CenterLines(line_number - 1, 2);
}
else
{
vstv.CenterLines(line_number, 1);
}
}