| From: | Fabien COELHO <coelho(at)cri(dot)ensmp(dot)fr> | 
|---|---|
| To: | Corey Huinker <corey(dot)huinker(at)gmail(dot)com> | 
| Cc: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Greg Stark <stark(at)mit(dot)edu>, Erik Rijkers <er(at)xs4all(dot)nl>, Robert Haas <robertmhaas(at)gmail(dot)com>, Daniel Verite <daniel(at)manitou-mail(dot)org>, Jim Nasby <Jim(dot)Nasby(at)bluetreble(dot)com>, PostgreSQL <pgsql-hackers(at)postgresql(dot)org>, pgsql-hackers-owner(at)postgresql(dot)org | 
| Subject: | Re: \if, \elseif, \else, \endif (was Re: PSQL commands: \quit_if, \quit_unless) | 
| Date: | 2017-03-03 06:19:11 | 
| Message-ID: | alpine.DEB.2.20.1703030709210.12372@lancre | 
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| Thread: | |
| Lists: | pgsql-hackers | 
Hello Corey,
> v20: attempt at implementing the switch-on-all-states style.
For the elif I think it is both simpler and better like that. Whether 
committer will agree is an unkown, as always.
For endif, I really exagerated, "switch { defaut: " is too much, please 
accept my apology. Maybe just do the pop & error reporting?
For if, the evaluation & error could be moved before the switch, which may 
contain only the new state setting decision, and the push after the 
switch? Also, I would suggest to use default only to detect an unexpected 
state error, and list all other states explicitely.
-- 
Fabien.
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