a sd_ã@sdZddlZdd„ZdS)zDNS GENERATE range conversion.éNcCsðd}d}d}|r(|ddkr(tj d¡‚|D]b}|dkrR|dkrRt|ƒ}d}d}q,|dkrlt|ƒ}d}d}q,| ¡r~||7}q,tj d |¡‚q,|d vr¢tj ¡‚|dkr²t|ƒ}|dkrÂt|ƒ}|dksÎJ‚|dksÚJ‚||ksæJ‚|||fS) zÜConvert the text form of a range in a ``$GENERATE`` statement to an integer. *text*, a ``str``, the textual range in ``$GENERATE`` form. Returns a tuple of three ``int`` values ``(start, stop, step)``. éÚrú-z!Start cannot be a negative numberéú/ézCould not parse %s)ré)ÚdnsZ exceptionÚ SyntaxErrorÚintÚisdigit)ÚtextÚstepZcurÚstateÚcÚstartÚstop©rú,/usr/lib/python3/dist-packages/dns/grange.pyÚ from_texts6       r)Ú__doc__r rrrrrÚs