Re: Partly OT: some luatex questions

["Wolfgang Schuster" <schuster.wolfgang@googlemail.com>]

2008/8/14 Ulrike Fischer <news2@nililand.de>:
> Am Wed, 13 Aug 2008 23:07:43 +0200 schrieb Arthur Reutenauer:
>
>>       Hello Ulrike,
>>
>>> 1. In the following document there is no space between the a and the y:
>>>
>>> \documentclass{article}
>>> \begin{document}
>>> \noindent a\\y
>>>
>>> \bigskip
>>>
>>> a\par y
>>> \end{document}
>>>
>>> It looks as if the lines have only the depth from their content.
>>
>>   I don't seem to see that (see attachment).  How did you generate the
>> format?  I used "luatex -ini pdflualatex.ini" where pdflualatex.ini
>> contains
>>
>>       \pdfoutput1
>>       \input latex.ltx
>
> I tried it with a format generated by simply inputting latex.ltx (and
> then \pdfoutput=1 in the document), with one which loads also
> pdftexconfig.tex, and with a plain one:
> % Thomas Esser, 1998. public domain.
> % hyphenation tables are now set up in language.dat
> \input pdftexconfig.tex
> \input plain
> \dump
> \endinput
>
> In all cases (also if I try dvi-output) the lines glue together. The
> attachment text-lua is the pdf of the latex try.
>
>
>>> 2. I found here some code to use truetype and opentype fonts:
>>> http://luatex.bluwiki.com/go/Use_a_TrueType_font
>>
>>   Oh, that ;-)  You really have to realize that these lines of code are
>> nothing more than an experiment I wrote one and a half year ago, and you
>> should be prepared to extend it if you want complete TrueType support
>> (not to mention OpenType features, which are absent altogether).
>
> Yes I realized that ;-). Currently I'm trying simple code to understand
> the principles so that I can later steal the right things from the
> context files.
>
>> That said, the problems should not be as bad as the ones you report
>> below:
>>
>>> a) I tested it with a latin modern font and arial and with both fonts
>>> all lines of a text are printed one above the other.
>>> of the lines have a height and a depth.
>>
>>   That's not what happens to me, you should really send a precise example.
>
> See test-lua2.tex + pdf

This was a bug, you need a newer luaTeX.

http://www.mail-archive.com/dev-luatex@ntg.nl/msg00033.html

>>> b) I also tried MnSymbol5.otf and there I get an error "invalid
>>> character". (I tried to get an "A"). With xetex the font works fine.
>>
>>   I can't confirm that.  I get the A all right (see attachment).  Again,
>> please send the precise example that fails.
>
> The MnSymbol-Bold5 you used works fine for me too. MnSymbol5 is the font
> doesn't work (the code is  -- commented -- in test-lua2):
>
> <c:/PROGRAMME/MIKTEX2.7/fonts/opentype/public/mnsymbol/MnSymbol5.otf
> !luaTeX error (file
> c:/PROGRAMME/MIKTEX2.7/fonts/opentype/public/mnsymbol/MnSym
> bol5.otf): Invalid character.
>  ==> Fatal error occurred, no output PDF file produced!

Wolfgang
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