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

From: Corey Huinker <corey(dot)huinker(at)gmail(dot)com>
To: Fabien COELHO <coelho(at)cri(dot)ensmp(dot)fr>
Cc: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Daniel Verite <daniel(at)manitou-mail(dot)org>, "David G(dot) Johnston" <david(dot)g(dot)johnston(at)gmail(dot)com>, Greg Stark <stark(at)mit(dot)edu>, Erik Rijkers <er(at)xs4all(dot)nl>, Robert Haas <robertmhaas(at)gmail(dot)com>, 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: 2017-03-27 19:51:04
Message-ID: CADkLM=f6ELXZOmW9UU3vyYu3jzTbh2o2178r7+wt2emN+DWmig@mail.gmail.com
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On Mon, Mar 27, 2017 at 3:25 PM, Fabien COELHO <coelho(at)cri(dot)ensmp(dot)fr> wrote:

>
> And here you go
>>
>
> Patch applies cleany, make check ok. Looks pretty good.
>
> A minor detail I have just noticed, sorry: now that options are discarded
> by functions, some string variable declarations should be moved back inside
> the active branch. You moved them out because you where sharing the
> variables between the active & inactive branches, but this is no longer
> necessary, and the project practice seems to declare variables just where
> they are needed. That would be pattern in d, encoding in encoding, fname in
> f and g and include and out and s, prefix in gset, opt in help, opt* in lo
> and pset and set, arg* in prompt, env* in setenv... and maybe a few others.
>
> --
> Fabien.
>

done:
encoding f g gset help include lo out prompt pset s set setenv sf sv t T
timing unset watch x z ! ?

weird cases where they're both still needed:
d write

0001+0002 patch primarily for ease of review. will be following with a
single v28 patch shortly.

Attachment Content-Type Size
0001-psql-if-v27.patch application/octet-stream 77.6 KB
0002-fix-var-scoping.patch application/octet-stream 10.3 KB

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