help.markup: new logic for preventing accidental double blank lines
$subsections emits a blank line after the final link so that subsequent span text is nicely spaced away from the group of links. Prior to this bug fix, if you were to put a $heading immediately after a $subsections element, there would be 2 blank lines between them. This fixes it so that there is only a single blank line between them.
I also added a bunch of unit tests for span, block, $heading and $nl layout interactions.
projects / factor.git / commit