Method: Textbringer::Buffer#insert

Defined in:

lib/textbringer/buffer.rb

#insert(x, merge_undo = false) ⇒ Object

# File 'lib/textbringer/buffer.rb', line 577

def insert(x, merge_undo = false)
  s = x.to_s
  if !binary? && !s.valid_encoding?
    raise EditorError, "Invalid encoding: #{s.dump}"
  end
  check_read_only_flag
  pos = @point
  size = s.bytesize
  adjust_gap(size)
  @contents.bytesplice(@point, size, s.b)
  @marks.each do |m|
    if m.location > @point
      m.location += size
    end
  end
  @point = @gap_start += size
  update_line_and_column(pos, @point)
  unless @undoing
    if merge_undo && @undo_stack.last.is_a?(InsertAction)
      @undo_stack.last.merge(s)
      @redo_stack.clear
    else
      push_undo(InsertAction.new(self, pos, s))
    end
  end
  self.modified = true
  @goal_column = nil
  self
end