Turkish small cap dotted 'i' in footnote

Load the font with the Language=Turkish option:

\documentclass[11pt]{memoir}

\usepackage{fontspec}
\usepackage{polyglossia}
\setdefaultlanguage{turkish}
\setmainfont{Linux Libertine O}[
  Language=Turkish,
  BoldFont=* Semibold,
  BoldItalicFont=* Semibold Italic,
]

\setlength{\textheight}{2cm}

\begin{document}

In Turkish,  `\textsc{ı}' and `\textsc{i}' are different
letters.\footnote{In Turkish,  `\textsc{ı}' and `\textsc{i}'
are different letters.}

\textbf{Abc} \textbf{\textit{Abc}}

\end{document}

enter image description here


I don't think it should be be needed but you can re-assert turkish in the footnote:

\documentclass[11pt]{memoir}

\usepackage{fontspec}
\usepackage{polyglossia}
\setdefaultlanguage{turkish}
\usepackage[semibold]{libertine}


\begin{document}

 In Turkish,  `\textsc{ı}' and `\textsc{i}' are different letters.

{\footnotesize In Turkish,  `\textsc{ı}' and `\textsc{i}' are different letters.}


x\footnote{\textturkish{In Turkish,  `\textsc{ı}' and `\textsc{i}' are different letters.}}


\end{document}

I think the root cause is \normalfont

\documentclass[11pt]{memoir}

\usepackage{fontspec}
\usepackage{polyglossia}
\setdefaultlanguage{turkish}
\usepackage[semibold]{libertine}


\begin{document}

 In Turkish,  `\textsc{ı}' and `\textsc{i}' are different letters.

{\footnotesize In Turkish,  `\textsc{ı}' and `\textsc{i}' are different letters.}


{\normalfont\footnotesize In Turkish,  `\textsc{ı}' and `\textsc{i}' are different letters.}


x\footnote{In Turkish,  `\textsc{ı}' and `\textsc{i}' are different letters.}

x\footnote{\textturkish{In Turkish,  `\textsc{ı}' and `\textsc{i}' are different letters.}}


\end{document}

\normalfont (which is used to reset the font in footnotes, headings and other places) ends up selecting LinLibertine(0) whereas for Turkish it should be LinLibertine(9) I'm not sure if that's the responsibility of fontspec or polyglossia but I'll ask...


babel has a new interface to setup language dependant fonts. It seems to handle this correctly:

\documentclass[11pt]{memoir}

\usepackage[english,turkish]{babel}
\babelfont[english]{rm}[Language=Default]{Linux Libertine O}
\babelfont[turkish]{rm}[Language=Turkish]{Linux Libertine O}


\begin{document}
    In Turkish,  `\textsc{ı}' and `\textsc{i}' are different letters.%
    \footnote{In Turkish,  `\textsc{ı}' and `\textsc{i}' are different letters.}

    \selectlanguage{english}
    In english,  `\textsc{ı}' and `\textsc{i}' %
    \footnote{In english,  `\textsc{ı}' and `\textsc{i}'}


\end{document}

enter image description here

But you won't be able to use the libertine package. The babel document says explicitly that you must setup the fonts with \babelfont and not \setXXfont.

Tags:

Turkish

Xetex

Luatex

Small Caps

Polyglossia

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