summaryrefslogtreecommitdiff
path: root/info/examples/tex-in-practice/numwhile.tip
diff options
context:
space:
mode:
Diffstat (limited to 'info/examples/tex-in-practice/numwhile.tip')
-rw-r--r--info/examples/tex-in-practice/numwhile.tip38
1 files changed, 38 insertions, 0 deletions
diff --git a/info/examples/tex-in-practice/numwhile.tip b/info/examples/tex-in-practice/numwhile.tip
new file mode 100644
index 0000000000..1f8bb00271
--- /dev/null
+++ b/info/examples/tex-in-practice/numwhile.tip
@@ -0,0 +1,38 @@
+% 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 27.1.5, p. III-406.
+% Original source in file "macros7.TEX", starting line 506.
+\wlog{L: "numwhile.tip" ["macros7.TEX," l. 506, p. III-406]}%
+% This file DOES belong to format "texip."
+\InputD{namedef.tip}
+\catcode`\@ = 11
+\newcount\@WhileNesting
+\@WhileNesting = 0
+\def\WhileNum #1#2{%
+ \global\advance\@WhileNesting by 1
+ \edef\@WhileArgOne{{\the\@WhileNesting}}%
+ \expandafter\@WhileNum\@WhileArgOne{#1}{#2}%
+ \global\advance\@WhileNesting by -1
+}
+\def\@WhileNum #1#2#3{%
+ \ifnum #2\relax
+ #3\relax
+ \NameDef{@WhileNum-#1}{\@WhileNum{#1}{#2}{#3}}%
+ \else
+ \NameDef{@WhileNum-#1}{}%
+ \fi
+ \NameUse{@WhileNum-#1}{}%
+}
+\catcode`\@ = 12