[texhax] \vskip at beginning of file
Daniel H. Luecking
luecking at uark.edu
Sun Jul 24 21:08:06 CEST 2016
Jim Diamond wrote:
>So.. does \topglue really care about preserving \prevdepth,
>or is it merely the case that \topglue (coincidentally) uses
>\vglue, and it is other uses of \vglue that care about
>preserving \prevdepth ?
The use of \hrule at the top of page preserves the
value -1000pt of \prevdepth. For your purposes there
is no need for \topglue to save and restore \prevdepth.
However, \vglue can be used in situations where it might
or might not occur at the top of a page and so \vglue
goes through the save-restore process for those other
Daniel H. Luecking [luecking at uark.edu]
Department of Mathematical Sciences
1 University of Arkansas
Fayetteville, AR, USA 72701-1201
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