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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/vcentx.tip |
Initial commit
Diffstat (limited to 'info/examples/tip/vcentx.tip')
-rw-r--r-- | info/examples/tip/vcentx.tip | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/info/examples/tip/vcentx.tip b/info/examples/tip/vcentx.tip new file mode 100644 index 0000000000..d272a7da1c --- /dev/null +++ b/info/examples/tip/vcentx.tip @@ -0,0 +1,73 @@ +% 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 7.5.5, p. I-249. +% Original source in file "vboxes1.TEX", starting line 2107. +\wlog{L: "vcentx.tip" ["vboxes1.TEX," l. 2107, p. I-249]}% +% This file DOES belong to format "texip." +\catcode`\@ = 11 +\newbox\@VcenterXBox +\newdimen\@VcenterDimen +\def\VcenterX{% + \hbox\bgroup + \mathsurround = 0pt + \futurelet\@VCenterXToken\@VCenterXA +} +\def\@VCenterXA{% + \ifx\@VCenterXToken\bgroup + \let\@VcenterXNext = \@VcenterXOrdinary + \else + \ifx\@VCenterXToken t% + \let\@VcenterXNext = \@VcenterXTo + \else + \let\@VcenterXNext = \@VcenterXSpread + \fi + \fi + \@VcenterXNext +} +\def\@VcenterXOrdinary{% + \def\@VcenterCommand{\vcenter}% + \afterassignment\@VcenterXB + \let\@VcenterDrop = +} +\def\@VcenterXTo to{% + \def\@VcenterCommand{to}% + \afterassignment\@VcenterXToSpread + \@VcenterDimen = +} +\def\@VcenterXSpread spread{% + \def\@VcenterCommand{spread}% + \afterassignment\@VcenterXToSpread + \@VcenterDimen = +} +\def\@VcenterXToSpread{% + \edef\@VcenterCommand{% + \vcenter\@VcenterCommand \the\@VcenterDimen + }% + \afterassignment\@VcenterXB + \let\@VcenterDrop = +} +\def\@VcenterXB{% + \setbox\@VcenterXBox = \hbox\bgroup + $% + \@VcenterCommand\bgroup + \aftergroup\@VcenterXC +} +\def\@VcenterXC{% + $% + \egroup + \box\@VcenterXBox + \egroup +} +\catcode`\@ = 12 |