[Usability]Test or analysis needed: Automatic completion

[Gregory Merchan <merchan phys lsu edu>]

I see automatic completions of command lines and URLs being done three
different ways in GNOME. Briefly, these are:

 Epiphany-style:
   A list drops down from the entry which shows completions.
   Down-arrow navigates into the list.
 Nautilus-style:
   A possible completion is appended and selected after the caret.
   Right-arrow or Tab moves the caret to the end of the selection and
   the selection disappears.
 Bash-style:
   No completion without pressing Tab. I haven't seen this one in a while
   (except in bash, of course) so I'm not sure how it's being done in GUI.

I prefer Epiphany-style, hate Nautilus-style, and am ambivalent about
Bash-style for GUI. But my preferences be damned.

A test or an analysis (e.g., GOMS) of completion styles is needed so that
one can be chosen for all of GNOME.

Cheers,
Greg Merchan