docbook reader: Implement column span support for tables (#6492)

Implement column span support for tables in the DocBook reader.

Co-authored-by: Nils Carlson <nils.carlson@ludd.ltu.se>

1 files changed, 119 insertions, 0 deletions

diff --git a/test/command/table-with-column-span.md b/test/command/table-with-column-span.md
new file mode 100644
index 000000000..082233e5d
--- /dev/null
+++ b/test/command/table-with-column-span.md
@@ -0,0 +1,119 @@
+```
+% pandoc -f docbook -t native --quiet
+<informaltable frame="all" rowsep="1" colsep="1">
+<tgroup cols="16">
+<colspec colname="col_1" colwidth="6.25*"/>
+<colspec colname="col_2" colwidth="6.25*"/>
+<colspec colname="col_3" colwidth="6.25*"/>
+<colspec colname="col_4" colwidth="6.25*"/>
+<colspec colname="col_5" colwidth="6.25*"/>
+<colspec colname="col_6" colwidth="6.25*"/>
+<colspec colname="col_7" colwidth="6.25*"/>
+<colspec colname="col_8" colwidth="6.25*"/>
+<colspec colname="col_9" colwidth="6.25*"/>
+<colspec colname="col_10" colwidth="6.25*"/>
+<colspec colname="col_11" colwidth="6.25*"/>
+<colspec colname="col_12" colwidth="6.25*"/>
+<colspec colname="col_13" colwidth="6.25*"/>
+<colspec colname="col_14" colwidth="6.25*"/>
+<colspec colname="col_15" colwidth="6.25*"/>
+<colspec colname="col_16" colwidth="6.25*"/>
+<tbody>
+<row>
+<entry align="center" valign="top" namest="col_1" nameend="col_8"><simpara><emphasis role="strong">Octet no. 1</emphasis></simpara></entry>
+<entry align="center" valign="top" namest="col_2" nameend="col_9"><simpara><emphasis role="strong">Octet no. 2</emphasis></simpara></entry>
+</row>
+<row>
+<entry align="center" valign="top"><simpara>16</simpara></entry>
+<entry align="center" valign="top"><simpara>15</simpara></entry>
+<entry align="center" valign="top"><simpara>14</simpara></entry>
+<entry align="center" valign="top"><simpara>13</simpara></entry>
+<entry align="center" valign="top"><simpara>12</simpara></entry>
+<entry align="center" valign="top"><simpara>11</simpara></entry>
+<entry align="center" valign="top"><simpara>10</simpara></entry>
+<entry align="center" valign="top"><simpara>9</simpara></entry>
+<entry align="center" valign="top"><simpara>8</simpara></entry>
+<entry align="center" valign="top"><simpara>7</simpara></entry>
+<entry align="center" valign="top"><simpara>6</simpara></entry>
+<entry align="center" valign="top"><simpara>5</simpara></entry>
+<entry align="center" valign="top"><simpara>4</simpara></entry>
+<entry align="center" valign="top"><simpara>3</simpara></entry>
+<entry align="center" valign="top"><simpara>2</simpara></entry>
+<entry align="center" valign="top"><simpara>1</simpara></entry>
+</row>
+<row>
+<entry align="center" valign="top" namest="col_1" nameend="col_8"><simpara>Code A</simpara></entry>
+<entry align="center" valign="top" namest="col_2" nameend="col_9"><simpara>Code B</simpara></entry>
+</row>
+</tbody>
+</tgroup>
+</informaltable>
+^D
+[Table ("",[],[]) (Caption Nothing
+ [])
+ [(AlignDefault,ColWidth 6.25e-2)
+ ,(AlignDefault,ColWidth 6.25e-2)
+ ,(AlignDefault,ColWidth 6.25e-2)
+ ,(AlignDefault,ColWidth 6.25e-2)
+ ,(AlignDefault,ColWidth 6.25e-2)
+ ,(AlignDefault,ColWidth 6.25e-2)
+ ,(AlignDefault,ColWidth 6.25e-2)
+ ,(AlignDefault,ColWidth 6.25e-2)
+ ,(AlignDefault,ColWidth 6.25e-2)
+ ,(AlignDefault,ColWidth 6.25e-2)
+ ,(AlignDefault,ColWidth 6.25e-2)
+ ,(AlignDefault,ColWidth 6.25e-2)
+ ,(AlignDefault,ColWidth 6.25e-2)
+ ,(AlignDefault,ColWidth 6.25e-2)
+ ,(AlignDefault,ColWidth 6.25e-2)
+ ,(AlignDefault,ColWidth 6.25e-2)]
+ (TableHead ("",[],[])
+ [])
+ [(TableBody ("",[],[]) (RowHeadColumns 0)
+  []
+  [Row ("",[],[])
+   [Cell ("",[],[]) AlignDefault (RowSpan 1) (ColSpan 8)
+    [Para [Strong [Str "Octet",Space,Str "no.",Space,Str "1"]]]
+   ,Cell ("",[],[]) AlignDefault (RowSpan 1) (ColSpan 8)
+    [Para [Strong [Str "Octet",Space,Str "no.",Space,Str "2"]]]]
+  ,Row ("",[],[])
+   [Cell ("",[],[]) AlignDefault (RowSpan 1) (ColSpan 1)
+    [Para [Str "16"]]
+   ,Cell ("",[],[]) AlignDefault (RowSpan 1) (ColSpan 1)
+    [Para [Str "15"]]
+   ,Cell ("",[],[]) AlignDefault (RowSpan 1) (ColSpan 1)
+    [Para [Str "14"]]
+   ,Cell ("",[],[]) AlignDefault (RowSpan 1) (ColSpan 1)
+    [Para [Str "13"]]
+   ,Cell ("",[],[]) AlignDefault (RowSpan 1) (ColSpan 1)
+    [Para [Str "12"]]
+   ,Cell ("",[],[]) AlignDefault (RowSpan 1) (ColSpan 1)
+    [Para [Str "11"]]
+   ,Cell ("",[],[]) AlignDefault (RowSpan 1) (ColSpan 1)
+    [Para [Str "10"]]
+   ,Cell ("",[],[]) AlignDefault (RowSpan 1) (ColSpan 1)
+    [Para [Str "9"]]
+   ,Cell ("",[],[]) AlignDefault (RowSpan 1) (ColSpan 1)
+    [Para [Str "8"]]
+   ,Cell ("",[],[]) AlignDefault (RowSpan 1) (ColSpan 1)
+    [Para [Str "7"]]
+   ,Cell ("",[],[]) AlignDefault (RowSpan 1) (ColSpan 1)
+    [Para [Str "6"]]
+   ,Cell ("",[],[]) AlignDefault (RowSpan 1) (ColSpan 1)
+    [Para [Str "5"]]
+   ,Cell ("",[],[]) AlignDefault (RowSpan 1) (ColSpan 1)
+    [Para [Str "4"]]
+   ,Cell ("",[],[]) AlignDefault (RowSpan 1) (ColSpan 1)
+    [Para [Str "3"]]
+   ,Cell ("",[],[]) AlignDefault (RowSpan 1) (ColSpan 1)
+    [Para [Str "2"]]
+   ,Cell ("",[],[]) AlignDefault (RowSpan 1) (ColSpan 1)
+    [Para [Str "1"]]]
+  ,Row ("",[],[])
+   [Cell ("",[],[]) AlignDefault (RowSpan 1) (ColSpan 8)
+    [Para [Str "Code",Space,Str "A"]]
+   ,Cell ("",[],[]) AlignDefault (RowSpan 1) (ColSpan 8)
+    [Para [Str "Code",Space,Str "B"]]]])]
+ (TableFoot ("",[],[])
+ [])]
+```