| From: | Geoff Winkless <pgsqladmin(at)geoff(dot)dj> |
|---|---|
| To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
| Cc: | Geoff Winkless <pgsqladmin(at)geoff(dot)dj>, Laurenz Albe <laurenz(dot)albe(at)cybertec(dot)at>, Robert Haas <robertmhaas(at)gmail(dot)com>, Everaldo Canuto <everaldo(dot)canuto(at)gmail(dot)com>, Chapman Flack <chap(at)anastigmatix(dot)net>, Vik Fearing <vik(dot)fearing(at)2ndquadrant(dot)com>, Stephen Frost <sfrost(at)snowman(dot)net>, Alvaro Herrera <alvherre(at)alvh(dot)no-ip(dot)org>, Pg Hackers <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: proposal: alternative psql commands quit and exit |
| Date: | 2018-01-15 17:43:39 |
| Message-ID: | CAEzk6feWvBc8qAw=3pPTdQ5AwkW0DynbE95fzk+s9py3bvWoNA@mail.gmail.com |
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On 15 January 2018 at 17:03, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
> Geoff Winkless <pgsqladmin(at)geoff(dot)dj> writes:
>> And while trying to find the EOF setting in libreadline might get
>> messy, you're already assuming that ctrl-C hasn't been knobbled using
>> stty intr. Unless you want to go searching for that too?
>
> Yeah, that's why I personally don't want to mention ctrl-C in this
> message. If we do mention it we're going to need to look up what
> the signal is really bound to.
Could always rewrite gets_interactive to implement the documented
"alternative interface" to readline
https://tiswww.cwru.edu/php/chet/readline/readline.html#SEC43
and force exit that way by intercepting Ctrl-D at the character level.
That does feel a bit (!) wrong though, and I'm not sure how difficult
it gets with different locales etc. Would also have to modify
gets_fromFile, in case readline was disabled.
At this point it depends quite how far down the rabbit-hole you want
to go to stop people googling "how do I exit psql", I suppose :p
Geoff
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