Method: Textbringer::Buffer#delete_region

Defined in:

lib/textbringer/buffer.rb

#delete_region(s = @point, e = mark) ⇒ Object

# File 'lib/textbringer/buffer.rb', line 933

def delete_region(s = @point, e = mark)
  check_read_only_flag
  old_pos = @point
  s, e = Buffer.region_boundaries(s, e)
  update_line_and_column(old_pos, s)
  save_point do
    str = substring(s, e)
    @point = s
    adjust_gap
    len = e - s
    # fill the gap with NUL to avoid invalid byte sequence in UTF-8
    @contents[@gap_end, len] = "\0" * len
    @gap_end += len
    @marks.each do |m|
      if m.location > e
        m.location -= len
      elsif m.location > s
        m.location = s
      end
    end
    push_undo(DeleteAction.new(self, old_pos, s, str))
    self.modified = true
  end
end