Re: BUG #8611: ECPG: unclosed comment "/*"

From: Michael Meskes <meskes(at)postgresql(dot)org>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: Michael Meskes <meskes(at)postgresql(dot)org>, alexsav23(at)gmail(dot)com, pgsql-bugs(at)postgresql(dot)org
Subject: Re: BUG #8611: ECPG: unclosed comment "/*"
Date: 2013-11-25 08:36:44
Message-ID: 20131125083644.GB16770@feivel.credativ.lan
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On Sun, Nov 24, 2013 at 11:09:57AM -0500, Tom Lane wrote:
> Does it? In the example at hand, the questionable comment was after some
> C code and before some SQL code. I'd say it's just about exactly 50-50

Yes, it does. Everything between EXEC SQL and the semicolon is SQL by
definition, the rest is C.

> odds as to whether the user will think that C or SQL conventions should
> apply at that spot. I remain of the opinion that changing behavior here
> will annoy more people than it will help.

I don't agree. Please keep in mind that ecpg can spit out illegal C-code as it
is now. It accepts and outputs nested comments that the C compiler obviously
does not accept. Or in other words, I cannot see that people have code that's
broken by the change I made.

BTW I did notice that the patch is incomplete, though. I need to add another
another check or the nested comments still get put into the C file.

> In any case, you won't make any friends at all unless you can document
> exactly what the behavior is (and I'm disappointed to see that your
> behavior-changing commit did not touch the documentation). There might
> be some reason to change if the new behavior is more easily explainable
> than the old.

I'm absolutely willing to check and update the docs, but didn't so far because
I see this as a bug that got fixed and not a new or changed feature.

So far there is nothing about comments in the docs at all AFAICT. I'd expect
people to expect standard C behaviour.

Michael
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