(?:`)?(?:license:`bsd\-4\-`clause\-`shortened)?(?:`)?redistribution`and`use`in`source`and`binary`forms,`with`or`without`modification,`are`permitted`provided`that:`(?:.{,20})`source`code`distributions`retain`the`above`copyright`notice`and`this`paragraph`in`its`entirety,`(?:.{,20})`distributions`including`binary`code`include`the`above`copyright`notice`and`this`paragraph`in`its`entirety`in`the`documentation`or`other`materials`provided`with`the`distribution,`and`(?:.{,20})`all`advertising`materials`mentioning`features`or`use`of`this`software`display`the`following`acknowledgement:`this`product`includes`software`developed`by`the`university`of`california,`lawrence`berkeley`laboratory`and`its`contributors\.`neither`the`name`of`the`university`nor`the`names`of`its`contributors`may`be`used`to`endorse`or`promote`products`derived`from`this`software`without`specific`prior`written`permission\.`this`software`is`provided`as`is`and`without`any`express`or`implied`warranties,`including,`without`limitation,`the`implied`warranties`of`merchantability`and`fitness`for`a`particular`purpose\.