Resharper Spell Checker / ReSpeller / Actions / AddArbitraryWordHelper.cs

using System;
using System.Linq;
using System.Windows.Forms;
using JetBrains.Application;
using JetBrains.CommonControls.Validation;
using JetBrains.UI.Application;
using JetBrains.UI.CommonDialogs;
using ReSpeller.SpellEngine;

namespace ReSpeller.Actions
  static internal class AddArbitraryWordHelper
    public static void ShowWordInput(string defaultWord)
      using (PromptWinForm promptWinForm = new PromptWinForm(null, "Add word to dictionary", "Word:", defaultWord,
                                                             arg =>
                                                                 if (arg.Length == 0)
                                                                   return "Word can not be empty";
                                                                 if (arg.Any(c => !Char.IsLetter(c)))
                                                                   return "Only letters are permitted";
                                                                 return (string) null;
                                                               }, Shell.Instance.GetComponent<IApplicationDescriptor>(),
        promptWinForm.FormBorderStyle = FormBorderStyle.FixedDialog;
        if (promptWinForm.ShowDialog())
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