void IViewEvents.OnChangeFieldsMappingButtonClick()
{
List <string> allCaptures = new List <string>();
allCaptures.AddRange(GetRegExCaptures("head-re"));
allCaptures.AddRange(GetRegExCaptures("body-re"));
using (var interaction = objectsFactory.CreateEditFieldsMapping())
{
interaction.ShowDialog(reGrammarRoot, allCaptures.ToArray());
UpdateView();
}
}