ltjsclasses: Fix an error when jslogo.sty is not found.

[luatex-ja/luatexja.git] / src / ltjsbook.cls

diff --git a/src/ltjsbook.cls b/src/ltjsbook.cls
index f1f03e2..3a9d4a1 100644 (file)
--- a/src/ltjsbook.cls
+++ b/src/ltjsbook.cls
@@ -38,7 +38,7 @@
 %%   Right brace   \}     Tilde         \~}
 \NeedsTeXFormat{LaTeX2e}
 \ProvidesClass{ltjsbook}
-  [2016/07/18 ltjsclasses ]
+  [2016/07/21 ltjsclasses ]
 \def\jsc@clsname{ltjsbook}
 \RequirePackage{luatexja}
 \newif\if@restonecol
@@ -1512,12 +1512,17 @@ class has defined the old font commands like\MessageBreak
     \unskip \reserved@e {\reserved@f#1}\nobreak \hfil \break \null
     \inhibitglue \ignorespaces
   \fi}
-\def\小#1{\hbox{$\m@th$%
+\IfFileExists{jslogo.sty}{%
+  \RequirePackage{jslogo}
+  \def\小{\jslg@small}
+  \def\上小{\jslg@uppersmall}
+}{%
+\def\小##1{\hbox{$\m@th$%
   \csname S@\f@size\endcsname
   \fontsize\sf@size\z@
   \math@fontsfalse\selectfont
-  #1}}
-\def\上小#1{{\sbox\z@ T\vbox to\ht0{\小{#1}\vss}}}
+  ##1}}
+\def\上小##1{{\sbox\z@ T\vbox to\ht0{\小{##1}\vss}}}
 \def\cmrTeX{%
   \ifdim \fontdimen\@ne\font >\z@
     T\kern-.25em\lower.5ex\hbox{E}\kern-.125emX\@
@@ -1642,6 +1647,7 @@ class has defined the old font commands like\MessageBreak
   \ifx\f@family\cmr\kern-.08em\else\kern-.15em\fi\TeX}
 \DeclareRobustCommand{\SliTeX}{%
   S\kern-.06emL\kern-.18em\上小{I}\kern -.03em\TeX}
+}
 \newcommand{\prepartname}{\if@english Part~\else 第\fi}
 \newcommand{\postpartname}{\if@english\else 部\fi}
 \newcommand{\prechaptername}{\if@english Chapter~\else 第\fi}