command.call this, args...
update_sequence_then_text: (str) ->
len = @escape_sequence_length str
if len is -1
log "couldn't find escape sequence here: #{str.substr 0, 25}"
command.call this, args...
update_sequence_then_text: (str) ->
len = @escape_sequence_length str
if len is -1
log "couldn't find escape sequence here: #{str.substr 0, 25}"