Nested lists don't work

[apjanke]

Legacy bug report: rtomayko/ronn#55

Nested lists that look like definition lists don't render properly. In some cases, the nested list is omitted entirely.

Test file at https://github.com/apjanke/ronn-ng/blob/master/test/nested_list.ronn.

nested_list test
================

## TEST

* foo:
  Blablabla.

* bar:
  Blablabla.

  - bar-foo:
    Bububu.

  - bar-baz:
    Bububu.

* baz:
  Blablabla.

Results:

$ bin/ronn --roff --pipe test/nested_list.ronn
warn: unrecognized inline tag: ["dl"]
.\" generated with Ronn-NG/v0.8.0
.\" http://github.com/apjanke/ronn-ng/tree/0.8.0-SNAPSHOT
.TH "NESTED_LIST" "" "December 2018" "" ""
.SH "TEST"
.TP
foo
Blablabla\.
.TP
bar
Blablabla\.
.TP
baz
Blablabla\.

The inner nested list is missing. Looks like it's because the dt is being passed through the inline filter, which can't handle nested lists.

[apjanke]

References:

• https://unix.stackexchange.com/questions/37973/nested-lists-in-man-page
• https://www.gnu.org/software/groff/manual/html_node/Man-usage.html

Looks like I need to set up a stack for controlling the indent width of the .TP macros used for list items. Or switch to using .RS/.RE.

[apjanke]

Asked on SO about using .IP/.RS/.RE to make nested lists. It kinda works, but the formatting is wrong. https://stackoverflow.com/questions/53936179/nested-bulleted-lists-in-roff-groff