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Diffstat (limited to 'info/examples/tex-in-practice/rangetst.tip')
-rw-r--r-- | info/examples/tex-in-practice/rangetst.tip | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/info/examples/tex-in-practice/rangetst.tip b/info/examples/tex-in-practice/rangetst.tip new file mode 100644 index 0000000000..b4966fd908 --- /dev/null +++ b/info/examples/tex-in-practice/rangetst.tip @@ -0,0 +1,44 @@ +% 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 25.1.9, p. III-328. +% Original source in file "macros5.TEX", starting line 668. +\wlog{L: "rangetst.tip" ["macros5.TEX," l. 668, p. III-328]}% +% This file DOES belong to format "texip." +\catcode`\@ = 11 +\newif\if@InRange +\def\InRangeConditional #1#2#3{% + TT\fi + \@InRangetrue + \ifnum #1<#2\relax + \@InRangefalse + \fi + \ifnum #1>#3\relax + \@InRangefalse + \fi + \if@InRange +} + +\def\CheckRange #1#2#3#4{% + \ifnum #1 < #2\relax + \errmessage{Value \number#1 \space out of range #2..#3: #4}% + \fi + \ifnum #1>#3\relax + \errmessage{Value \number#1 \space out of range #2..#3: #4}% + \fi +} +\def\CheckZeroOneRange #1#2{% + \CheckRange{#1}{0}{1}{#2}% +} +\catcode`\@ = 12 |