[[!map ]] can generate bad HTML with unbalanced open/close tags
(in XML terms: "not well-formed") in certain situations. This
appears to be a regression caused by fixing
maps with nested directories sometimes make ugly lists, which
suppressed some redundant
</ul><ul> pairs, but appears not to
have the ideal logic for this, leading to malformed HTML.
In particular, on a site with these pages:
the maps "
alpha/1 or beta", "
alpha/1/i* or alpha/2/a or beta" and
alpha/1/i* or alpha/2/a" have malformed HTML.
ready/map branch adds a regression test and makes it pass.
The fix is not particularly elegant - it generates the previous
HTML with redundant
</ul><ul> pairs, marks the redundant
pairs, and edits them out afterwards - but it works. If anyone can come
up with a cleaner algorithm that avoids generating the redundant tags
in the first place, that would be even better. --smcv