woman: Technical
7 Technical Details
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Horizontal and vertical spacing and resolution
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WoMan currently assumes 10 characters per inch horizontally, hence a
horizontal resolution of 24 basic units, and 5 lines per inch
vertically, hence a vertical resolution of 48 basic units. (‘nroff’
uses 240 per inch.)
Vertical spacing and blank lines
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The number of consecutive blank lines in the formatted buffer should be
either 0 or 1. A blank line should leave a space like .sp 1. Current
policy is to output vertical space only immediately before text is
output.