From: "Sebastien Vauban" <wxhgmqzgwmuf-geNee64TY+gS+FvcfC7Uqw@public.gmane.org>
To: emacs-orgmode-mXXj517/zsQ@public.gmane.org
Subject: Re: [babel] Some variables with no default value don't provoke an error
Date: Fri, 16 Sep 2011 11:42:20 +0200 [thread overview]
Message-ID: <80vcssakn7.fsf@somewhere.org> (raw)
In-Reply-To: 87r53hhkff.fsf@gmail.com
Hi Eric,
Eric Schulte wrote:
> "Sebastien Vauban" <wxhgmqzgwmuf-geNee64TY+gS+FvcfC7Uqw@public.gmane.org> writes:
>> Weirdly enough, in the following code block, I must add a default value for
>> vars `table', `column' and `type' but not for the var `nullability'.
>>
>> I've even been able to add fake vars `something' and `else' with no error
>> being reported (at ingestion time):
>>
>> #+srcname: add-column-in-table(table="", column="", something, type="", else, nullability)
>> #+begin_src sql
>> -- add column `$column' (if column does not exist yet)
>> IF NOT EXISTS (SELECT *
>> FROM INFORMATION_SCHEMA.COLUMNS
>> WHERE TABLE_NAME = '$table'
>> AND COLUMN_NAME = '$column')
>> BEGIN
>> ALTER TABLE $table
>> ADD $column $type $nullability
>> END
>> #+end_src
>>
>> Note that, in the above state, the code block is ingested with no error, but,
>> if I remove the default value of var `table', it then generates back an
>> error...
>
> I've just pushed up a check for these functional-syntax variables which
> will ensure that each is given a default value. Since this check takes
> place at the location of the code block it /does/ include the name of
> the code block in the error message.
If you have a couple of minutes, can you clarify some points to be sure I can
understand:
- What do you call functional-syntax vars? The ones in the #+srcname, next to
the block name, as opposed to the ones declared as :var arguments?
The fact, then, that we can get a clearer message in case of error, seems to
me an incentive to use that type of declaration...
- Why was `nullability' not detected to have no default value? Why were
`table', `column' and `type' well correctly detected?
Best regards,
Seb
--
Sebastien Vauban
next prev parent reply other threads:[~2011-09-16 9:42 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-09-14 9:05 [babel] Some variables with no default value don't provoke an error Sebastien Vauban
2011-09-15 15:26 ` Eric Schulte
2011-09-16 9:42 ` Sebastien Vauban [this message]
2011-09-16 14:07 ` Eric Schulte
2011-09-16 19:54 ` Sebastien Vauban
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