I-ALL_PROXY iyindlela yesibili yezicelo ze-curl ku-R
Beka i-URL ye-proxy epheleleyo kusimo se-R, bese ubheka izinto eziguqukayo ze-protocol, imithetho yokudlula kanye nezinketho ze-curl handle.
Iphakethe le-curl ku-R lisebenzisa i-libcurl; ngakho-ke i-proxy esendaweni yokusebenza ingase isebenze ngisho noma isicelo se-curl singenawo umkhombandlela we-proxy.
Beka i-URL ye-proxy epheleleyo endaweni ngaphambi kokulungiselela isicelo, kanye ne-scheme ne-port; futhi ubheke i-NO_PROXY nezinketho ze-handle, ngoba zingashintsha indlela.