On 7/9/2013 9:34 AM, Élie Roux wrote:
There seems to be some interaction with \pretolerance.
If you add \pretolerance=-10000, LuaTeX does break at the penalty.
Let me try to understand what's going on...
On http://www.tug.org/utilities/plain/cseq.html#pretolerance-rp it says
that if you set pretolerance to a negative value (and indeed -1 is
enough to get the expected result), TeX will skip its first attempt to
build the paragraph without hyphenation.
This means that:
* in pdfTeX, the first attempt results in breaking at the discretionary
due to hyphenpenalty
* in LuaTeX, the hyphenpenalty is not taken into account in the first
attempt (which is the big difference), but if the first attempt is
skipped with pretolerance=-1, then it's taken into account in the
second attempt
Am I correct?
Would it be possible to make hyphenpenalty taken into account in the
first attempt?
in the first pass there is no hyphenation at all, only the replace field
is consulted so there is no reason to take that penalty into account
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