\pltx@isletter: stopped to use \romannumeral-`0 trick.

diff --git a/src/patches/lltjfont.sty b/src/patches/lltjfont.sty
index 1b95d95..f50ae7f 100644 (file)
--- a/src/patches/lltjfont.sty
+++ b/src/patches/lltjfont.sty
@@ -731,7 +731,7 @@
 \long\def\pltx@cond#1\fi{%
   #1\expandafter\@firstoftwo\else\expandafter\@secondoftwo\fi}
 \long\def\pltx@isletter#1{%
-  \expandafter\pltx@isletter@i\romannumeral-`0#1\pltx@scanstop}
+  \expandafter\pltx@isletter@i#1\pltx@scanstop}
 \long\def\pltx@isletter@i#1\pltx@scanstop{%
   \pltx@cond\ifx\pltx@mark#1\pltx@mark\fi{\@firstoftwo}%
     {\pltx@isletter@ii\pltx@scanstop#1\pltx@scanstop{}#1\pltx@mark}}