fish-shell/share/completions/vi.fish

# plain vi (as bundled with SunOS 5.8)
# todo:
# -wn : Set the default window size to n
# +command : same as -c command

# Check if vi exists at all ( needed for vi --version )
if type -q vi
    # Check if vi is really vim
    if vi --version > /dev/null ^ /dev/null
        complete -c vi -w vim
    else
        complete -c vi -s s -d 'Suppress all interactive user feedback'
        complete -c vi -s C -d 'Encrypt/decrypt text'
        complete -c vi -s l -d 'Set up for editing LISP programs'
        complete -c vi -s L -d 'List saved file names after crash'
        complete -c vi -s R -d 'Read-only mode'
        complete -c vi -s S -d 'Use linear search for tags if tag file not sorted'
        complete -c vi -s v -d 'Start in display editing state'
        complete -c vi -s V -d 'Verbose mode'
        complete -c vi -s x -d 'Encrypt/decrypt text'
        complete -c vi -r -s r -d 'Recover file after crash'
        complete -c vi -r -s t -d 'Edit the file containing a tag'
        complete -c vi -r -c t -d 'Begin editing by executing the specified  editor command'
    end
end