[tex-live] \"\i causes problems with texlive 2015

[Johannes Böttcher]

On 06/14/2015 11:03 PM, Zdenek Wagner wrote:
> Zdeněk Wagner
> http://hroch486.icpf.cas.cz/wagner/
> http://icebearsoft.euweb.cz
>
>
> 2015-06-14 22:57 GMT+02:00 Ulrike Fischer <news3 at nililand.de>:
>> Am Sun, 14 Jun 2015 10:59:38 +0200 schrieb Lutz Kruschwitz:
>>
>>> I was able to isolate the problem a few minutes ago. Biblatex generates the
>>> ï in an unusable code.
>>
>>
>> Not biblatex. biber translates the latex commands to utf8.  And it
>> is biber that produce the dotless i + combining accent which
>> pdflatex can't handle.
>>
> Why? In both TL 2014 and 2015 t1enc.def contains:
>
> \DeclareTextComposite{\"}{T1}{i}{239}
> \DeclareTextComposite{\"}{T1}{\i}{239}
>
> Hence both \"i and \"{\i} generate the same glyph.
>
>> --
>> Ulrike Fischer
>> http://www.troubleshooting-tex.de/
>>
>
>
>



Running the follwing

%
\documentclass{article}
\begin{filecontents}{\jobname.bib}
	@test{test,
		title={ escaped braced \"{\i},
		escaped \"i and direct ï}
	}
\end{filecontents}
\usepackage{biblatex}
\addbibresource{\jobname.bib}
\usepackage[utf8]{inputenc}
\begin{document}
escaped \"i \par
escaped braced \"{\i} \par
direct ï\par
\fullcite{test}
\end{document}
%


Will produce in the bbl-file:

     \field{title}{escaped braced ı̈ , escaped ï and direct ï}

Looking closer at the brced one:

     <ı> 305, Hex 0131, Oktal 461 < ̈> 776, Hex 0308, Oktal 1410


utf8.def complaining about the latter.