301 lines
11 KiB
C#
301 lines
11 KiB
C#
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using ICSharpCode.AvalonEdit.CodeCompletion;
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using ICSharpCode.AvalonEdit.Document;
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using ICSharpCode.AvalonEdit.Folding;
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using ICSharpCode.AvalonEdit.Highlighting;
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using Microsoft.CodeAnalysis;
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Threading;
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using System.Threading.Tasks;
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using System.Windows;
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using System.Windows.Controls;
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using System.Windows.Documents;
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using System.Windows.Input;
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using System.Windows.Media;
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using System.Windows.Threading;
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using ScriptPad.Editor;
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using ScriptPad.Roslyn;
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using ReactiveUI;
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using System.Reactive;
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using System.Reactive.Linq;
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namespace ScriptPad
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{
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/// <summary>
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/// CodeEditor.xaml 的交互逻辑
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/// </summary>
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public partial class CodeEditor : UserControl
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{
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private CompletionWindow completionWindow;
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private CancellationTokenSource completionCancellation;
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private TextMarkerService markerService;
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public TextContainer Container { get; private set; }
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private static int script;
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public CsScript Script;
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public CodeEditor(string path = null)
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{
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InitializeComponent();
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// 需要提升效率, 暂时不用
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codeEditor.TextArea.TextEntered += textEditor_TextArea_TextEntered;
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if (string.IsNullOrEmpty(path))
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{
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script++;
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Script = new CsScript("script" + script, ScriptGlobals.templateScript);
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}
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else
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{
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Script = CsScript.CreateFromFile(path);
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}
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this.codeEditor.Text = Script.Text;
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ICSharpCode.AvalonEdit.Search.SearchPanel.Install(codeEditor);
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//codeEditor.TextArea.IndentationStrategy = new CSIndentationStrategy();
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var csFoldingStrategy = new CSharpFoldingStrategy();
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var foldingManager = FoldingManager.Install(codeEditor.TextArea);
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this.codeEditor.GetTextChangeds().StartWith(EventArgs.Empty)
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.Throttle(TimeSpan.FromMilliseconds(200))
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.ObserveOnDispatcher()
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.Subscribe(p => csFoldingStrategy.UpdateFoldings(foldingManager, codeEditor.Document));
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this.codeEditor.TextArea.GetTextEnterings()
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.Where(p => p.Text.Length > 0 && !IsAllowedLanguageLetter(p.Text[0]))
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.Subscribe(p => completionWindow?.CompletionList.RequestInsertion(p));
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// 需要提升效率
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markerService = new TextMarkerService(codeEditor, this.Script);
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this.Container = new TextContainer(this.codeEditor.Document);
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Observable.FromEventPattern(this.Container, nameof(this.Container.TextChanged))
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.Subscribe(p => this.Script.UpdateText((p.Sender as TextContainer).CurrentText));
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}
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/// <summary>
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/// 关闭代码编辑窗口
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/// </summary>
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internal void Close()
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{
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if (Script.IsChanged)
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{
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var result = MessageBox.Show("文件已修改, 是否保存?", "保存", MessageBoxButton.YesNoCancel);
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if (result == MessageBoxResult.OK)
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{
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Script.Save();
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}
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if (result == MessageBoxResult.Cancel)
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{
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throw new TaskCanceledException();
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}
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}
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}
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private bool TryCompleteBracket(TextCompositionEventArgs e)
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{
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if (e.Text.Last() == '{')
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{
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codeEditor.Document.Insert(codeEditor.CaretOffset, "}");
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codeEditor.CaretOffset--;
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return true;
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}
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else if (e.Text.Last() == '(')
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{
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codeEditor.Document.Insert(codeEditor.CaretOffset, ")");
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codeEditor.CaretOffset--;
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return true;
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}
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if (e.Text.Last() == '[')
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{
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codeEditor.Document.Insert(codeEditor.CaretOffset, "]");
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codeEditor.CaretOffset--;
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return true;
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}
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return false;
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}
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private async void textEditor_TextArea_TextEntered(object sender, TextCompositionEventArgs e)
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{
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try
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{
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if (TryCompleteBracket(e))
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return;
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char? triggerChar = e.Text.FirstOrDefault();
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completionCancellation = new CancellationTokenSource();
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var position = codeEditor.CaretOffset;
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var cancellationToken = completionCancellation.Token;
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var isTrigger = Service.ScriptCompletionService.IsTrigger(Script.ID, this.Container.CurrentText, position, triggerChar);
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if (completionWindow == null && (triggerChar == null || triggerChar == '.' || IsAllowedLanguageLetter(triggerChar.Value)))
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{
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var list = await Service.ScriptCompletionService.GetCompletionsAsync(Script.ID, position);
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if (!list.Any())
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{
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return;
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}
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cancellationToken.ThrowIfCancellationRequested();
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completionWindow = new CompletionWindow(codeEditor.TextArea)
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{
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WindowStyle = WindowStyle.None,
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AllowsTransparency = true,
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MaxWidth = 340,
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Width = 340,
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MaxHeight = 206,
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Height = 206
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};
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foreach (var item in list)
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{
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completionWindow.CompletionList.CompletionData.Add(item);
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}
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if (triggerChar == null || IsAllowedLanguageLetter(triggerChar.Value))
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{
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var word = GetWord(position);
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completionWindow.StartOffset = word.Item1;
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completionWindow.CompletionList.SelectItem(word.Item2);
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}
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completionWindow.Show();
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completionWindow.Closed += (s2, e2) =>
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{
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completionWindow = null;
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};
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}
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}
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catch (OperationCanceledException)
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{
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}
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}
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private Tuple<int, string> GetWord(int position)
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{
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var wordStart = TextUtilities.GetNextCaretPosition(codeEditor.TextArea.Document, position, LogicalDirection.Backward, CaretPositioningMode.WordStart);
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var text = codeEditor.TextArea.Document.GetText(wordStart, position - wordStart);
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return new Tuple<int, string>(wordStart, text);
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}
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private static bool IsAllowedLanguageLetter(char character)
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{
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return TextUtilities.GetCharacterClass(character) == CharacterClass.IdentifierPart;
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}
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private void OpenFile_btn_Click(object sender, RoutedEventArgs e)
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{
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System.Windows.Forms.OpenFileDialog openFile = new System.Windows.Forms.OpenFileDialog()
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{
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Filter = "C# 脚本文件(*.csx)|*.csx"
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};
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if (openFile.ShowDialog() == System.Windows.Forms.DialogResult.OK)
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{
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this.Script = CsScript.CreateFromFile(openFile.FileName);
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this.codeEditor.Text = Script.Text;
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this.markerService.Script = Script;
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}
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}
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private async void formatBtn_Click(object sender, RoutedEventArgs e)
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{
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var changes = await Script.Format();
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if (changes.Any())
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{
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changes = changes.Reverse();
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codeEditor.Document.BeginUpdate();
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foreach (var item in changes)
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{
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codeEditor.Document.Replace(item.Span.Start, item.Span.Length, item.NewText, OffsetChangeMappingType.RemoveAndInsert);
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}
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codeEditor.Document.EndUpdate();
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}
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}
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private async void runBtn_Click(object sender, RoutedEventArgs e)
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{
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await Run();
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}
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public async Task Run()
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{
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try
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{
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flowDocument.Blocks.Clear();
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flowDocument.Blocks.Add(new Paragraph());
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Console.SetOut(new DelegateTextWriter((flowDocument.Blocks.First() as Paragraph).Inlines.Add));
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await ScriptRunner.Run(Script);
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}
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catch (Exception ex)
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{
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Console.WriteLine(ex);
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}
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}
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private void SaveFile_btn_Click(object sender, RoutedEventArgs e)
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{
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Script.Save();
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}
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private void CommentBtn_Click(object sender, RoutedEventArgs e)
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{
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var document = codeEditor.Document;
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var startLine = document.GetLineByOffset(codeEditor.SelectionStart);
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var endLine = document.GetLineByOffset(codeEditor.SelectionStart + codeEditor.SelectionLength);
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document.BeginUpdate();
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var line = startLine;
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while (line != null && line.LineNumber <= endLine.LineNumber)
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{
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var whitespace = TextUtilities.GetLeadingWhitespace(document, line);
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if (line.Length > whitespace.Length)
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{
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var text = document.GetText(whitespace) + "//";
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document.Replace(whitespace.Offset, whitespace.Length, text, OffsetChangeMappingType.RemoveAndInsert);
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}
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line = line.NextLine;
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}
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document.EndUpdate();
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}
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private void UnCommentBtn_Click(object sender, RoutedEventArgs e)
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{
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var document = codeEditor.Document;
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var startLine = document.GetLineByOffset(codeEditor.SelectionStart);
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var endLine = document.GetLineByOffset(codeEditor.SelectionStart + codeEditor.SelectionLength);
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document.BeginUpdate();
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var line = startLine;
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while (line != null && line.LineNumber <= endLine.LineNumber)
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{
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var whitespace = TextUtilities.GetLeadingWhitespace(document, line);
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if (line.Length > whitespace.Length + 2)
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{
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var text = document.GetText(whitespace.EndOffset, 2);
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if (text == "//")
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document.Remove(whitespace.EndOffset, 2);
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}
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line = line.NextLine;
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}
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document.EndUpdate();
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}
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private void Reference_Click(object sender, RoutedEventArgs e)
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{
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new ReferenceWindow(this.Script).ShowDialog();
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}
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}
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}
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