{ $description "Set the given quotation as the completion hook for readline. The quotation is called with the string to complete and the index in the completion list to return. When all completions have been returned, returning " { $snippet "f" } " terminates the loop." }
"The " { $vocab-link "readline" } " vocabulary binds to the C readline library and provides Emacs-style key bindings for editing text. Currently, it only works from the non-graphical UI." $nl