Avoid hyphenation around a specific character

Question

I want to use typographic apostrophe (’) in my document. Using a simple ' don't give the same result.

I can type the ’ on my keyboard. But XeTeX take it as a normal character, ie. like a letter, and it can generate bad hyphenation like this (using the xmemoire class) :

\documentclass{xmemoire}
\usepackage{wrapfig} 
\lccode`\’=0
\begin{document}
\begin{wrapfigure}{R}[1cm]{0.33\linewidth}
         \begin{center}
          \caption{{\normalfont { Logo associé à l’\textit{ERC Starting Grants} d’Analyse de la maturation cérébrale.}}}
          \label{figbb}
        \end{center}
\end{wrapfigure}
\end{document}

How do I avoid hyphenation around ’, or more generally around a given character, in all the document (I know I can use mbox for local forcing).

Answer 1

Something like

\lccode`\’=0

should turn that character into a symbol not considered as a word constituent. Note that I don't really have experience with XeTeX: this is based on the assumption that XeTeX will treat characters beyond 8bit just like below.