/// <summary>
/// Extracts identifier sequence at the caret location.
/// Fetches parts of 'abc$def' rather than tne entire expression.
/// If there is selection, returns complete selected item as is.
/// </summary>
public static string GetIdentifierUnderCaret(this IEditorView view, out ITextRange span)
{
if (!view.Caret.InVirtualSpace)
{
if (view.Selection.Mode == SelectionMode.Stream)
{
var position = view.Caret.Position;
int caretPosition = -1;
span = view.Selection.SelectedRange;
if (span.Length > 0)
{
return(view.EditorBuffer.CurrentSnapshot.GetText(span));
}
var line = position.GetContainingLine();
caretPosition = caretPosition >= 0 ? caretPosition : position.Position;
var item = GetItemAtPosition(line, caretPosition, x => x == RTokenType.Identifier, out span);
if (string.IsNullOrEmpty(item))
{
item = view.GetItemBeforeCaret(out span, x => x == RTokenType.Identifier);
}
return(item);
}
}
span = TextRange.EmptyRange;
return(string.Empty);
}
