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+Date: Wed, 9 Nov 88 13:33:46 CST
+From: J E PITTMAN <JEPTEX@venus.tamu.edu>
+Subject: TeX Inputs cellular.tex (table-generating macros)
+Keywords: macros
+
+Several months ago, someone sent in a request for macros that allow vertical
+and horizontal spans within a ruled table. There have also been questions
+about `nubs' and `gaps' within ruled tables.
+
+After thinking about the problem for a while, I realized that a solution was to
+abandon the \halign primitive and start from scratch.
+
+I have finished my first attempt at a set of table generating macros, which I
+have chosen to call Cellular.TeX. These macros allow for both vertical and
+horizontal spans and take steps to prevent `nubs' and `gaps' when rules are
+used.
+
+They are, unfortunately, very slow and I have not been able to increase their
+speed without sacrificing memory conservation and generality.
+
+I am sending the macros under separate cover since there are nearly 1,000 lines
+of code involved, divided into five files. Detailed comments are available in
+the file TeX Inputs cellular.doc.
+
+J E Pittman Bitnet: JEPTeX@TAMVenus
+User Services Group Internet: JEPTeX@Venus.TAMU.Edu
+Computing Services Center
+Texas A&M University