# File lib/em/protocols/linetext2.rb, line 115
115:       def set_text_mode size=nil
116:         if size == 0
117:           set_line_mode
118:         else
119:           @lt2_mode = :text
120:           (@lt2_textbuffer ||= []).clear
121:           @lt2_textsize = size # which can be nil, signifying no limit
122:           @lt2_textpos = 0
123:         end
124:       end