[luatex] LuaTeX v1: Two questions from testing
Joseph Wright
joseph.wright at morningstar2.co.uk
Thu Oct 13 10:42:29 CEST 2016
On 13/10/2016 08:01, Joseph Wright wrote:
> On 13/10/2016 07:33, Joseph Wright wrote:
>> Hello,
>>
>> Testing LuaTeX v1, there are relatively few changes from v0.95. However,
>> I've found one logging (?) change and one hyphenation change I didn't
>> expect. With example
>>
>> \hsize 15em
>> This is a supercalifragilisticexpialidocious%
>> \hbox to 1em{}
>> sentence.
>> \tracingall
>> \belowdisplayskip=0pt %
>> $$
>> y = mx + c
>> $$
>> \bye
>>
>> The results are different from pdfTeX in two ways. The empty \hbox does
>> not prevent hyphenation, which it has to-date (so this is not a result
>> of other hyphenation changes). The log also lacks the zero skip after
>> the display.
>>
>> It's not clear to me if either of these changes is deliberate: what's
>> the situation?
>>
>> Josph
>
> Also, I assume that the fact the following doesn't show a \discretionary
> is deliberate:
>
> \tracingall
> 119-139
> \bye
>
> Joseph
Another oddity, perhaps related:
\parindent0pt \hsize=0.1cm \relax
12-34-56-78-12-34-56-78 \par \bye
gives unexpected lack of hyphenation for the first "-".
Joseph
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