>>-delstr(n---+---------+--)-------------------------------><
              +-,length-+

Deletes length characters from the buffer beginning at the n'th character. If length is omitted, or if length is greater than the number of characters from n to the end of the buffer, the method deletes the remaining buffer contents (including the n'th character). The length must be a positive integer or zero. The n must be a positive integer. If n is greater than the length of the buffer or zero, the method does not modify the buffer content. The delstr() method is the same as the delete() method. It is provided for polymorphism with the String class.