On Fri, Sep 16, 2011 at 3:49 PM, Thomas Morley < thomasmorle...@googlemail.com> wrote:
>
>
> 2011/9/16 David Nalesnik <david.nales...@gmail.com>
>
>>
>> Hi, Harm --
>>
>> On Thu, Sep 15, 2011 at 6:18 PM, harm6 <thomasmorle...@googlemail.com>wrote:
>>
>>>
>>> I tested your definitions with a longer example using StaffGroup and
>>> commented the not used parts with %{ ... %}. (see code below)
>>> The log states: ERROR: Wrong type (expecting pair): ()
>>>
>>> And now the strangest thing: If I uncomment "two" it works!! ("two" is a
>>> copy of "one" and not called in the active StaffGroup!!!)
>>> If I completely delete "two" out of the file it doesn't work.
>>> If I comment eyery line of "two" with % it works!!
>>> Some other combinations of commenting in/out parts of the code gives the
>>> same result.
>>>
>>> I've never heard of such a strange behaviour.
>>>
>>>
>> Neither have I ... Is the file as you send it supposed to create an
>> error?
>>
>
> Yes!
> But compiling this morning: no error. In the evening I copied it again from
> the list (to avoid any carelessness), I compiled it without any changes,
> and: ERROR: Wrong type (expecting pair): ()
>
> I don't not know what's going here !
>
Hi, Harm --
I still have no idea why this error is occurring, but I've revised the file
to include various checks. So, if one or both of the grobs you're trying to
center something between isn't there, or if they aren't found from left to
right in the specified order, there shouldn't be an error. I don't know if
this fixes the problem, or just covers up the issue (meaning: maybe now you
will see the file running without errors, but centering the grob in some
instances, and not in others.)
I've experimented with your example, and I don't see any problems. But
that's no guarantee it will work for you... If you could try it out, that
would be great!
Best,
David
centerGrobBetween_rev.ly
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