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Diffstat (limited to 'info/examples/tex-in-practice/condltr.tip')
-rw-r--r-- | info/examples/tex-in-practice/condltr.tip | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/info/examples/tex-in-practice/condltr.tip b/info/examples/tex-in-practice/condltr.tip new file mode 100644 index 0000000000..cc6fff7d49 --- /dev/null +++ b/info/examples/tex-in-practice/condltr.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 25.2.4, p. III-354. +% Original source in file "macros5.TEX", starting line 2056. +\wlog{L: "condltr.tip" ["macros5.TEX," l. 2056, p. III-354]}% +% This file DOES belong to format "texip." +\catcode`\@ = 11 +\newif\if@LetterConditional +\newcount\@LetterConditionalCounter +\def\@LetterConditional #1#2;{% + \@LetterConditionalCounter = `#1\relax +} +\def\LetterConditional #1{% + TT\fi + \@LetterConditionalfalse + \edef\@LetterConditionalString{#1}% + \expandafter\@LetterConditional\@LetterConditionalString ; + \if\InRangeConditional{\@LetterConditionalCounter}{`\a}{`\z}% + \@LetterConditionaltrue + \fi + \if\InRangeConditional{\@LetterConditionalCounter}{`\A}{`\Z}% + \@LetterConditionaltrue + \fi + \if@LetterConditional +} +\catcode`\@ = 12 |