Обсуждение: BUG #14167: ecpg parser cann't ignore code in #ifdef ?

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BUG #14167: ecpg parser cann't ignore code in #ifdef ?

От
digoal@126.com
Дата:
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Re: BUG #14167: ecpg parser cann't ignore code in #ifdef ?

От
Michael Meskes
Дата:
>   this is my pgc code.  
> ...
> #ifdef ABC
>     err *abc;
> #endif
> ...
> this is ERROR
> ecpg -t -c -I/home/digoal/pgsql9.6/include -o t.c t.pgc
> t.pgc:15: ERROR: unrecognized data type name "err"
>
> And use #ifndef and -DABC also error. 
> ECPG parser cann't skip code in #ifdef or #ifndef ?

'#ifdef' is a C precompiler command and thus is only parsed by cpp et
al. If you want ecpg to parse it you have to use 'exec sql ifdef'
instead.

Michael
--
Michael Meskes
Michael at Fam-Meskes dot De, Michael at Meskes dot (De|Com|Net|Org)
Meskes at (Debian|Postgresql) dot Org
Jabber: michael at xmpp dot meskes dot org
VfL Borussia! Força Barça! SF 49ers! Use Debian GNU/Linux, PostgreSQL

Re: BUG #14167: ecpg parser cann't ignore code in #ifdef ?

От
德哥
Дата:

HI,
Thanks very much, 
Because I see EDB's document ECPGplus can parser #ifdef.  
so why postgresql community not do that? 
I think many PG user need it to adpate some enviroment (like Oracle , pg, db2, ...) in .pgc code. 

best regards , 
digoal 


--
公益是一辈子的事,I'm Digoal,Just Do It.


At 2016-06-01 21:43:00, "Michael Meskes" <meskes@postgresql.org> wrote:
>>   this is my pgc code.  
>> ...
>> #ifdef ABC
>>     err *abc;
>> #endif
>> ...
>> this is ERROR
>> ecpg -t -c -I/home/digoal/pgsql9.6/include -o t.c t.pgc
>> t.pgc:15: ERROR: unrecognized data type name "err"
>> 
>> And use #ifndef and -DABC also error. 
>> ECPG parser cann't skip code in #ifdef or #ifndef ?
>
>'#ifdef' is a C precompiler command and thus is only parsed by cpp et
>al. If you want ecpg to parse it you have to use 'exec sql ifdef'
>instead.
>
>Michael
>-- 
>Michael Meskes
>Michael at Fam-Meskes dot De, Michael at Meskes dot (De|Com|Net|Org)
>Meskes at (Debian|Postgresql) dot Org
>Jabber: michael at xmpp dot meskes dot org
>VfL Borussia! Força Barça! SF 49ers! Use Debian GNU/Linux, PostgreSQL

Re: BUG #14167: ecpg parser cann't ignore code in #ifdef ?

От
Michael Paquier
Дата:
On Thu, Jun 2, 2016 at 10:04 AM, =E5=BE=B7=E5=93=A5 <digoal@126.com> wrote:
> Because I see EDB's document ECPGplus can parser #ifdef.
> so why postgresql community not do that?

Because EDB's stuff is not community stuff. I am not sure you can
expect both things to match, and it is not like ifdef grammar is not
supported as already mentioned by Michael.
--=20
Michael