# [NTG-context] Curious blank page

Wed Apr 12 17:46:14 CEST 2006

```On Wed, 12 Apr 2006, Hans Hagen wrote:

>> On Mon, 10 Apr 2006, Hans Hagen wrote:
>>>> On Sun, 9 Apr 2006, Hans Hagen wrote:
>>>>>> On Sun, 19 Mar 2006, David Arnold wrote:
>>>>>>> Why is it that the rest of the page after Answers on page 4 of the
>>>>>>> compiled pdf is blank?
>>>>>>>
>>>>>> I have a similar problem. Attached is the (not so) minimal example
>>>>>> that I could prepare. (This is part of my way on mathalignment). See
>>>>>> the page break on page 2, while all the page is empty. Adding
>>>>>> \kern\zeropoint prevents the page break. But I find such an page break
>>>>>> very confusing.
>>>>>>
>>>>> btw, you need to patch core-mat.tex :
>>>>>
>>>>> \doif => \doifsomething
>>>>>
>>>>>   \doifsomething{\formulaparameter\c!margin}% so we test first
>>>>>
>>>>> it seems that this was never encountered
>>>>>
>>>> This doesn't seem to work. Changing line 303 of core-mat.tex \doif =>
>>>> \doifsomething and regenerating formats, does not change the output of
>>>> the test file. I still get the incorrect page breaking.
>>>>
>>> no, this patch is not related to the pagebreak but needed anyway (you're
>>> just lucky for not running into that bug) ; the pagebreak is just the
>>> result of background going crazy (well, not being able to determine if
>>> there is enough space left)
>>
>> framedtext does not break across pages :( Can startbackground be
>>
> not today, best try \definetextbackground which is the successor
>
\definetextbackground works :). The following works correctly (breaks
across pages, and does not give false blank pages)

\definetextbackground
[example]
[width=\textwidth,
background=color,
backgroundcolor=lightgray,
frame=off,
leftoffset=1em,
rightoffset=1em,
location=paragraph,
after={\blank[small]},
before={\blank[small]}]

Thanks,