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

2 files changed, 29 insertions, 0 deletions

diff --git a/haddock-api/resources/html/Classic.theme/xhaddock.css b/haddock-api/resources/html/Classic.theme/xhaddock.css
index 1bf668e9..b8164815 100644
--- a/haddock-api/resources/html/Classic.theme/xhaddock.css
+++ b/haddock-api/resources/html/Classic.theme/xhaddock.css
@@ -392,6 +392,20 @@ td.rdoc p {
 }
 
 
+.doc table {
+  border-collapse: collapse;
+  border-spacing: 0px;
+}
+
+.doc th,
+.doc td {
+  padding: 5px;
+  border: 1px solid #ddd;
+}
+
+.doc th {
+  background-color: #f0f0f0;
+}
 
 #footer {
   background-color: #000099;
diff --git a/haddock-api/resources/html/Ocean.std-theme/ocean.css b/haddock-api/resources/html/Ocean.std-theme/ocean.css
index 0852dea5..ba6af9ca 100644
--- a/haddock-api/resources/html/Ocean.std-theme/ocean.css
+++ b/haddock-api/resources/html/Ocean.std-theme/ocean.css
@@ -443,6 +443,21 @@ div#style-menu-holder {
   margin-top: 0.8em;
 }
 
+.doc table {
+  border-collapse: collapse;
+  border-spacing: 0px;
+}
+
+.doc th,
+.doc td {
+  padding: 5px;
+  border: 1px solid #ddd;
+}
+
+.doc th {
+  background-color: #f0f0f0;
+}
+
 .clearfix:after {
   clear: both;
   content: " ";