Question about credential api

Hi Jeff, a quick question about credential api, after doing this:

static struct credential proxy_auth = CREDENTIAL_INIT;
credential_from_url(&proxy_auth, "http://proxy.server.com:8080");

will prox_auth.username and prox_auth.password be an empty string ? so
that strcmp(proxy_auth.username,"") returns zero.. couldn't figure that
out from api-credentials.txt 

Thanks,