Re: \if, \elseif, \else, \endif (was Re: PSQL commands: \quit_if, \quit_unless)

On Sat, Feb 11, 2017 at 5:57 PM, Greg Stark <stark@mit.edu> wrote:

> On 10 February 2017 at 21:36, Fabien COELHO <coelho@cri.ensmp.fr> wrote:
> >> command       prompt is now
> >> -----------   ---------------------------------------
> >> \echo bob     ''   = initial state, no branch going on at all
> >> \if yes       't' = inside a true branch
> >> \if no        'tf' = false inside a true
> >> \endif        't' = back to just the true branch
> >> \if yes       'tt'
> >> \if yes       'ttt'
> >> \if yes       '...ttt' = only show the last 3, but let it be known that
> >> there's at least one more'
> >> \else         '...ttz' = past the point of a true bit of this branch
> >
> >
> > I like the "tfz" idea. I'm not sure whether the up to 6 characters is a
> > good, though.
>
>
> I haven't been following this thread but just skimming through it for
> the first time I thought this was more baroque than I was expecting. I
> was expecting something like a { for each level of nested if you're in
> so you can see how many deep you are. I didn't expect to see anything
> more complex than that.
>

So you'd just want to know nesting depth, with no indicator of true/false?