static AstFormattingVisitor GetFormattingChanges (PolicyContainer policyParent, IEnumerable<string> mimeTypeChain, MonoDevelop.Ide.Gui.Document document, string input, DomRegion formattingRegion, ref int formatStartOffset, ref int formatLength, bool formatLastStatementOnly) { using (var stubData = TextEditorData.CreateImmutable (input)) { stubData.Document.FileName = document.FileName; var parser = document.HasProject ? new PlayScriptParser (TypeSystemParser.GetCompilerArguments (document.Project)) : new PlayScriptParser (); var compilationUnit = parser.Parse (stubData); bool hadErrors = parser.HasErrors; if (hadErrors) { using (var stubData2 = TextEditorData.CreateImmutable (input + "}")) { compilationUnit = parser.Parse (stubData2); hadErrors = parser.HasErrors; } } // try it out, if the behavior is better when working only with correct code. if (hadErrors) { return null; } var policy = policyParent.Get<PlayScriptFormattingPolicy> (mimeTypeChain); var formattingVisitor = new AstFormattingVisitor (policy.CreateOptions (), stubData.Document, document.Editor.CreateNRefactoryTextEditorOptions ()) { HadErrors = hadErrors, }; formattingVisitor.AddFormattingRegion (formattingRegion); compilationUnit.AcceptVisitor (formattingVisitor); if (formatLastStatementOnly) { AstNode node = compilationUnit.GetAdjacentNodeAt<Statement> (stubData.OffsetToLocation (formatStartOffset + formatLength - 1)); if (node != null) { while (node.Role == Roles.EmbeddedStatement || node.Role == IfElseStatement.TrueRole || node.Role == IfElseStatement.FalseRole) node = node.Parent; var start = stubData.LocationToOffset (node.StartLocation); if (start > formatStartOffset) { var end = stubData.LocationToOffset (node.EndLocation); formatStartOffset = start; formatLength = end - start; } } } return formattingVisitor; } }
public string FormatText (PlayScriptFormattingPolicy policy, TextStylePolicy textPolicy, string mimeType, string input, int startOffset, int endOffset) { var data = new TextEditorData (); data.Document.SuppressHighlightUpdate = true; data.Document.MimeType = mimeType; data.Document.FileName = "toformat.cs"; if (textPolicy != null) { data.Options.TabsToSpaces = textPolicy.TabsToSpaces; data.Options.TabSize = textPolicy.TabWidth; data.Options.IndentationSize = textPolicy.IndentWidth; data.Options.IndentStyle = textPolicy.RemoveTrailingWhitespace ? IndentStyle.Virtual : IndentStyle.Smart; } data.Text = input; // System.Console.WriteLine ("-----"); // System.Console.WriteLine (data.Text.Replace (" ", ".").Replace ("\t", "->")); // System.Console.WriteLine ("-----"); var parser = new PlayScriptParser (); var compilationUnit = parser.Parse (data); bool hadErrors = parser.HasErrors; if (hadErrors) { // foreach (var e in parser.ErrorReportPrinter.Errors) // Console.WriteLine (e.Message); return input.Substring (startOffset, Math.Max (0, Math.Min (endOffset, input.Length) - startOffset)); } var originalVersion = data.Document.Version; var textEditorOptions = data.CreateNRefactoryTextEditorOptions (); var formattingVisitor = new AstFormattingVisitor ( policy.CreateOptions (), data.Document, textEditorOptions ) { HadErrors = hadErrors, FormattingMode = FormattingMode.Intrusive }; compilationUnit.AcceptVisitor (formattingVisitor); try { formattingVisitor.ApplyChanges (startOffset, endOffset - startOffset); } catch (Exception e) { LoggingService.LogError ("Error in code formatter", e); return input.Substring (startOffset, Math.Max (0, Math.Min (endOffset, input.Length) - startOffset)); } // check if the formatter has produced errors parser = new PlayScriptParser (); parser.Parse (data); if (parser.HasErrors) { LoggingService.LogError ("C# formatter produced source code errors. See console for output."); return input.Substring (startOffset, Math.Max (0, Math.Min (endOffset, input.Length) - startOffset)); } var currentVersion = data.Document.Version; string result = data.GetTextBetween (startOffset, originalVersion.MoveOffsetTo (currentVersion, endOffset, ICSharpCode.NRefactory.Editor.AnchorMovementType.Default)); data.Dispose (); return result; }