open_hook(+Spec, +Mode, -Stream, -Close, +Options0, -Options) is semidet[multifile, library(iostream)]

Open Spec in Mode, producing Stream.

Arguments:

Close	- is unified to a goal that must be called to undo the side-effects of the action, e.g., typically the term close(Stream)
Options0	- are the options passed to open_any/5
Options	- are passed to the post processing filters that may be installed by open_any/5.

iostream:open_hook(+Spec, +Mode, -Stream, -Close, +Options0, -Options) is semidet[multifile, library(http/http_open)]

Hook implementation that makes open_any/5 support http and https URLs for Mode == read.