LaTeX reader: Handle `\label` and `\ref` for footnotes.

Closes #7930.

1 files changed, 98 insertions, 0 deletions

diff --git a/test/command/7930.md b/test/command/7930.md
new file mode 100644
index 000000000..5e3625419
--- /dev/null
+++ b/test/command/7930.md
@@ -0,0 +1,98 @@
+```
+% pandoc -f latex -t native
+We discuss foobar in notes \ref{note:X} and \ref{note:Y}.
+
+Foo.\footnote{\label{note:X}A note. See also note~\ref{note:Y}.}
+
+Bar.\footnote{\label{note:Y}Another note. See also
+note~\ref{note:X}}
+^D
+[ Para
+    [ Str "We"
+    , Space
+    , Str "discuss"
+    , Space
+    , Str "foobar"
+    , Space
+    , Str "in"
+    , Space
+    , Str "notes"
+    , Space
+    , Link
+        ( ""
+        , []
+        , [ ( "reference-type" , "ref" )
+          , ( "reference" , "note:X" )
+          ]
+        )
+        [ Str "1" ]
+        ( "#note:X" , "" )
+    , Space
+    , Str "and"
+    , Space
+    , Link
+        ( ""
+        , []
+        , [ ( "reference-type" , "ref" )
+          , ( "reference" , "note:Y" )
+          ]
+        )
+        [ Str "2" ]
+        ( "#note:Y" , "" )
+    , Str "."
+    ]
+, Para
+    [ Str "Foo."
+    , Note
+        [ Para
+            [ Span ( "note:X" , [] , [ ( "label" , "note:X" ) ] ) []
+            , Str "A"
+            , Space
+            , Str "note."
+            , Space
+            , Str "See"
+            , Space
+            , Str "also"
+            , Space
+            , Str "note\160"
+            , Link
+                ( ""
+                , []
+                , [ ( "reference-type" , "ref" )
+                  , ( "reference" , "note:Y" )
+                  ]
+                )
+                [ Str "2" ]
+                ( "#note:Y" , "" )
+            , Str "."
+            ]
+        ]
+    ]
+, Para
+    [ Str "Bar."
+    , Note
+        [ Para
+            [ Span ( "note:Y" , [] , [ ( "label" , "note:Y" ) ] ) []
+            , Str "Another"
+            , Space
+            , Str "note."
+            , Space
+            , Str "See"
+            , Space
+            , Str "also"
+            , SoftBreak
+            , Str "note\160"
+            , Link
+                ( ""
+                , []
+                , [ ( "reference-type" , "ref" )
+                  , ( "reference" , "note:X" )
+                  ]
+                )
+                [ Str "1" ]
+                ( "#note:X" , "" )
+            ]
+        ]
+    ]
+]
+```