# soul dropping some accented letters from the end of words

I'm using soul to letterspace headings in a Hungarian document and compiling it with lualatex.

For some reason soul drops some of the accented letters at the end of a word, but not all. In the example below, only ő and ű are affected:

\documentclass{minimal}
\usepackage{fontspec}
\setmainfont[Ligatures = TeX]{TeX Gyre Pagella}
\usepackage{soul}
\begin{document}
\noindent
\so{áll llá ÁLL LLÁ}\\
\so{íll llí ÍLL LLÍ}\\
\so{űll llű ŰLL LLŰ}\\
\so{őll llő ŐLL LLŐ}\\
\so{üll llü ÜLL LLÜ}\\
\so{öll llö ÖLL LLÖ}\\
\so{úll llú ÚLL LLÚ}\\
\so{óll lló ÓLL LLÓ}\\
\so{éll llé ÉLL LLÉ}
\end{document}


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The question is not about ő/Ő, but rather depends on the fact that they are at the word border. Try with a final Ű, for example. Other accented letters seem to be unaffected. –  egreg Jan 14 '12 at 10:41
Indeed! I restated the question. –  Nyiti Jan 14 '12 at 12:03
I've tracked down the problem to this: characters with Unicode > 255 don't appear. Indeed U+00FF is ÿ that is treated correctly, while U+0100, that is Ā, disappears. –  egreg Jan 14 '12 at 13:57

\makeatletter

after loading soul the problem seems to disappear. It probably won't show again characters that are not in the \SOUL@tt font.