Grid Tables (#718)

* Add table examples

* Add table types and adopt simple parser

Simple parser is done by Giovanni Cappellotto (@potomak)
in https://github.com/haskell/haddock/pull/577
It seems to support single fine full tables, so far from full
RST-grid tables, but it's good start.

Table type support row- and colspans, but obviously parser is lacking.

Still TODO:
- Latex backend. Should we use multirow package
  https://ctan.org/pkg/multirow?lang=en?
- Hoogle backend: ?

* Implement grid-tables

* Refactor table parser

* Add two ill-examples

* Update CHANGES.md

* Basic documentation for tables

* Fix documentation example

1 files changed, 7 insertions, 0 deletions

diff --git a/haddock-library/fixtures/examples/table3.input b/haddock-library/fixtures/examples/table3.input
new file mode 100644
index 00000000..a6ca84ca
--- /dev/null
+++ b/haddock-library/fixtures/examples/table3.input
@@ -0,0 +1,7 @@
++--------------+----------+-----------+-----------+
+| row 1, col 1 | column 2 | column 3  | column 4  |
++--------------+----------+-----------+-----------+
+| row 2        | Use the command ``ls | more``.   |
++--------------+----------+-----------+-----------+
+| row 3        |          |           |           |
++--------------+----------+-----------+-----------+