removed uses of xor operator in re parser
removed uses of xor operator in re parser

gavin-romig-koch/ometajs,djdeath/gnometa,xixixao/meta-coffee,gavin-romig-koch/ometajs,KamilSzot/meta-coffee,alexwarth/ometa-js,hax/ometa-js,xixixao/meta-coffee,gavin-romig-koch/ometajs,gavin-romig-koch/ometajs,alexwarth/ometa-js,KamilSzot/meta-coffee,alexwarth/ometa-js,hax/ometa-js,hax/ometa-js,djdeath/gnometa