37 lines
679 B
TeX
37 lines
679 B
TeX
%%
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%% A collection of useful commands
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%%
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%% can call commands even when they are not defined
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\def\safe#1{%
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\ifdefined#1%
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#1%
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\else%
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{\color{red}\bf?}%
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\fi%
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}
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%% add infinitely extendable glue before large blocks (e.g. figures)
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\def\preblock{
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\vfil
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\hbox{}
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}
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%% listparpenalty prevents page breaks before lists
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\newcount\prevparpenalty
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\def\listparpenalty{
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\prevparpenalty=\@beginparpenalty
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\@beginparpenalty=10000
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}
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%% back to previous value
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\def\unlistparpenalty{
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\@beginparpenalty=\prevparpenalty
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}
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%% array spanning the entire line
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\def\largearray{\begin{array}{@{}>{\displaystyle}l@{}}\hphantom{\hspace{\textwidth}}\\[-.5cm]}
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\def\endlargearray{\end{array}}
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