summaryrefslogtreecommitdiff
path: root/info/examples/tex-in-practice/testdef.tip
diff options
context:
space:
mode:
Diffstat (limited to 'info/examples/tex-in-practice/testdef.tip')
-rw-r--r--info/examples/tex-in-practice/testdef.tip30
1 files changed, 30 insertions, 0 deletions
diff --git a/info/examples/tex-in-practice/testdef.tip b/info/examples/tex-in-practice/testdef.tip
new file mode 100644
index 0000000000..d9bff77499
--- /dev/null
+++ b/info/examples/tex-in-practice/testdef.tip
@@ -0,0 +1,30 @@
+% This macro source file is from the four volume series
+% "TeX in Practice" by Stephan von Bechtolsheim, published
+% 1993 by Springer-Verlag, New York.
+% Copyright 1993 Stephan von Bechtolsheim.
+% No warranty or liability is assumed.
+% This macro may be copied freely if no fees other than
+% media cost or shipping charges are charged and as long
+% as this copyright and the following source code itself
+% is not changed. Please see the series for further information.
+%
+% Version: 1.0
+% Date: May 1, 1993
+%
+%
+% This source code is documented in 21.5.6, p. III-173.
+% Original source in file "macros1.TEX", starting line 1179.
+\wlog{L: "testdef.tip" ["macros1.TEX," l. 1179, p. III-173]}%
+% This file DOES belong to format "texip."
+\catcode`\@ = 11
+\newif\if@Defined
+\def\DefinedConditional #1{%
+ TT\fi
+ \ifx\@UndefinedToken #1%
+ \@Definedfalse
+ \else
+ \@Definedtrue
+ \fi
+ \if@Defined
+}
+\catcode`\@ = 12