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author | Norbert Preining <norbert@preining.info> | 2019-09-02 13:46:59 +0900 |
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committer | Norbert Preining <norbert@preining.info> | 2019-09-02 13:46:59 +0900 |
commit | e0c6872cf40896c7be36b11dcc744620f10adf1d (patch) | |
tree | 60335e10d2f4354b0674ec22d7b53f0f8abee672 /info/examples/tip/numwhile.tip |
Initial commit
Diffstat (limited to 'info/examples/tip/numwhile.tip')
-rw-r--r-- | info/examples/tip/numwhile.tip | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/info/examples/tip/numwhile.tip b/info/examples/tip/numwhile.tip new file mode 100644 index 0000000000..1f8bb00271 --- /dev/null +++ b/info/examples/tip/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 |