Re: Hairpin with text inside

[David Kastrup]

Rutger Hofman <address@hidden> writes:

> On 07/28/2016 01:40 PM, David Kastrup wrote:
>> Rutger Hofman <address@hidden> writes:
>>
>>>> I am not top-posting
>>>
>>> Hello list,
>>>
>>> I grabbed LSR 233 (hairpin with centered text below/above) and
>>> modified it to have text *inside* the hairpin, at the right for \< and
>>> at the left for \>. This worked fine for me until approx. \version
>>> 2.19.27 or so. Now I am at 2.19.39, and this code throws me an
>>> assertion failure:
>>>
>>> /home/gub/NewGub/gub/target/linux-64/src/lilypond-git.sv.gnu.org--lilypond.git-release-unstable/flower/include/drul-array.hh:35:
>>> T& Drul_array<T>::at(Direction) [with T = double]: Assertion `d == 1
>>> || d == -1' failed.
>>>
>>> If I replace line 10
>>>    Y CENTER
>>> with line 11
>>>    Y DOWN
>>> the assertion goes away, but obviously the text is not printed inside
>>> the slur but below it.
>>>
>>> Before, everything worked fine for me without this assertion. Can the
>>> assertion please be removed again in newer releases?
>>
>> Any reason you are not writing Y UP here?
>>
>
> I want the text to be inside the hairpin, not above or below it. And
> this used to work just fine...

Well, obviously the code does not do anything intentionally for the
CENTER setting and taking the assertion out would just lead to a
partially random result since the indexing will then effectively revert
to "DOWN".  What you want is an explicit support of the CENTER setting,
not a combination of bugs that happens to do more or less accidentally
what you want.

Can you run this in a debugger so that one can get a backtrace and see
where the defective indexing actually occurs?  Then it should be
possible to code an explicit behavior there.

-- 
David Kastrup