(?:`)?(?:.{,5000})(?:`)?redistribution`and`use`in`source`and`binary`forms,`with`or`without`modification,`are`permitted`provided`that`the`following`conditions`are`met:(?:`)?(?:.{,20})(?:`)?redistributions`of`source`code`must`retain`the`above`copyright`notice,`this`list`of`conditions`and`the`following`disclaimer\.(?:`)?(?:.{,20})(?:`)?redistributions`in`binary`form`must`reproduce`the`above`copyright`notice,`this`list`of`conditions`and`the`following`disclaimer`in`the`documentation`and`or`other`materials`provided`with`the`distribution\.(?:`)?(?:.{,20})(?:`)?(?:`)?(?:(?:(The\`name\`of.+may\`not)|(Neither\`the\`name\`of.+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`by`the`copyright`holders`and`contributors`as`is`and`any`express`or`implied`warranties,`including,`but`not`limited`to,`the`implied`warranties`of`merchantability`and`fitness`for`a`particular`purpose`are`disclaimed\.`in`no`event`shall`the`copyright`holder(?:`)?(?:,`the`united`states`government,)?(?:`)?or`contributors`be`liable`for`any`direct,`indirect,`incidental,`special,`exemplary,`or`consequential`damages`\(including,`but`not`limited`to,`procurement`of`substitute`goods`or`services;`loss`of`use,`data,`or`profits;`or`business`interruption\)`however`caused`and`on`any`theory`of`liability,`whether`in`contract,`strict`liability,`or`tort`\(including`negligence`or`otherwise\)`arising`in`any`way`out`of`the`use`of`this`software,`even`if`advised`of`the`possibility`of`such`damage\.`you`are`under`no`obligation`whatsoever`to`provide`any`bug`fixes,`patches,`or`upgrades`to`the`features,`functionality`or`performance`of`the`source`code`\(`enhancements`\)`to`anyone;`however,`if`you`choose`to`make`your`enhancements`available`either`publicly,`or`directly`to(?:`)?(?:.+)(?:`)?,`without`imposing`a`separate`written`license`agreement`for`such`enhancements,`then`you`hereby`grant`the`following`license:`a`non\-`exclusive,`royalty\-`free`perpetual`license`to`install,`use,`modify,`prepare`derivative`works,`incorporate`into`other`computer`software,`distribute,`and`sublicense`such`enhancements`or`derivative`works`thereof,`in`binary`and`source`code`form\.