­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ 3 bW@sdZddlZddZdS)zDNS GENERATE range conversion.NcCsd}d}d}|r(|ddkr(tjjdxj|D]b}|dkrT|dkrTt|}d}d}q.|dkrnt|}d}d}q.|jr||7}q.tjjd |q.W|d krtjj|dkrt|}|dkrt|}|dkst|dkst||kst|||fS) zConvert the text form of a range in a GENERATE statement to an integer. @param text: the textual range @type text: string @return: The start, stop and step values. @rtype: tuple r-z!Start cannot be a negative number/zCould not parse %s)rr)dnsZ exception SyntaxErrorintisdigitAssertionError)textstepZcurstatecstartstopr/usr/lib/python3.6/grange.py from_texts6        r)__doc__r rrrrrs