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I am using lualatex This is LuaTeX, Version beta-0.70.1-2011062107 (rev 4277) with microtype [2011/08/18 v2.5 <beta-07> Micro-typographical refinements (RS)]. My computer has an american keyboard and I am typesetting in German with TeXShop.

There is a different behavior when I switch the keyboard to German and type an ö or when I use the sequence alt-u o.

I am puzzelled by the fact, that a hex-editor shows c3 b6 in both cases. How do I distinguish with a tool such as a hex-editor, but capable of showing the difference. The output pdfs are attached as an example.

example one example two

now with the minimal example (microtype):

enter image description here

no microtype: enter image description here

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Can you zip a minimal example and upload it somewhere? – dıʞsdoʇ Oct 18 '11 at 12:35
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This has quite certainly nothing to do with microtype. Perhaps your code is wrong or your file encoding. Make a small complete example that demonstrates the problem and put the tex-file and the pdf somewhere on the net (at best hidden in a zip-file so that they can be downloaded without change). – Ulrike Fischer Oct 18 '11 at 12:37
I would like to post a minimal example, but it behaves again differently. I am interested in a tool that does for UTF-8 the same that does my good old hexEdit for ascii. If there is no difference in the input file, there cannot be a difference in the output file (I am sure about that ;) – Andy Oct 18 '11 at 12:58
I managed to pin it down (dl.dropbox.com/u/9089117/test.tex.zip) and my world is still okay. The hexeditor shows different character codes. I still do not quite understand how I got the other characters. Did someone notice that copy and paste (on a mac) does some interpretation/ changes? Please note how it seems to work without microtype. – Andy Oct 18 '11 at 13:27
@UlrikeFischer: now with pdfs: (dl.dropbox.com/u/9089117/all.zip) – Andy Oct 18 '11 at 13:38
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1 Answer

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You can use a hex-editor to look at the character codes, but you have to look at every one in the paragraph, not only the suspicious ones close to the problem. Please note how the space between Jahr and 1950 is affected by the incorrect ä in Tatsächlich in the first paragraph. The second paragraph has the right ä. two paragraphs of text

Download of the code example.

Please delete the post, if it is to specific to my particular problem...

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