LuaTeX vs XeTeX

[Herbert Voss]

Am 17.12.21 um 15:03 schrieb Neal Becker:
> I thought all LaTeX have to pass strict tests and produce identical
> results.  Any difference due to different fonts.  Is this correct?

no. It is correct only for TeX, the original one! run the example with
pdftex, xetex, and  luatex

\hsize 1cm
internationalizationmachinery is a long word

\bye

Herbert


>
> On Fri, Dec 17, 2021 at 6:06 AM Herbert Voss via lyx-users
> <lyx-users at lists.lyx.org> wrote:
>> Am 16.12.21 um 22:12 schrieb Virgil Arrington via lyx-users:
>>> Starting with the completely clean files, I added the Microtype
>>> package to both and compiled them. As with my first test, I got
>>> different results. XeTeX once again produced many more hyphenated
>>> lines -- essentially the same as it produced without Microtype -- than
>>> did LuaTeX. Neither produced any significant overfull lines at the
>>> right margin.
>>>
>>> So, it seems as if Microtype behaves differently with XeTeX and LuaTeX
>>> -- at least on my system.
>>>
>> Sure, microtype for xetex is not the same as microtype for luatex.
>>
>> Herbert
>>
>>
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>
>