function man --description "Format and display the on-line manual pages"

    # Work around the "builtin" manpage that everything symlinks to,
    # by prepending our fish datadir to man. This also ensures that man gives fish's
    # man pages priority, without having to put fish's bin directories first in $PATH

    # Notice local but exported variable
    set -lx MANPATH (string join : $MANPATH)
    if test -z "$MANPATH"
        type -q manpath
        and set MANPATH (command manpath)
    end
    set -l fish_manpath (dirname $__fish_datadir)/fish/man
    if test -d "$fish_manpath" -a -n "$MANPATH"
        set MANPATH "$fish_manpath":$MANPATH

        # Invoke man with this manpath, and we're done
        command man $argv
        return
    end

    # If fish's man pages could not be found, just invoke man normally
    command man $argv
end