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## 7 Technical Details

### Horizontal and vertical spacing and resolution

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

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.