data/pandoc.lua: auto-fix nested constructor arguments

Incorrect types to pandoc element constructors are automatically
converted to the correct types when possible. This was already done for
most constructors, but conversions are now also done for nested
types (like lists of lists).

2 files changed, 25 insertions, 4 deletions

diff --git a/test/Tests/Lua.hs b/test/Tests/Lua.hs
index 4bc949ddb..7ad48116a 100644
--- a/test/Tests/Lua.hs
+++ b/test/Tests/Lua.hs
@@ -10,10 +10,10 @@ import Test.Tasty (TestTree, localOption)
 import Test.Tasty.HUnit (Assertion, assertEqual, testCase)
 import Test.Tasty.QuickCheck (QuickCheckTests (..), ioProperty, testProperty)
 import Text.Pandoc.Arbitrary ()
-import Text.Pandoc.Builder (bulletList, divWith, doc, doubleQuoted, emph,
-                            header, linebreak, para, plain, rawBlock,
-                            singleQuoted, space, str, strong,
-                            math, displayMath)
+import Text.Pandoc.Builder (bulletList, definitionList, displayMath, divWith,
+                            doc, doubleQuoted, emph, header, lineBlock,
+                            linebreak, math, orderedList, para, plain, rawBlock,
+                            singleQuoted, space, str, strong)
 import Text.Pandoc.Class (runIOorExplode, setUserDataDir)
 import Text.Pandoc.Definition (Block (BlockQuote, Div, Para), Inline (Emph, Str),
                                Attr, Meta, Pandoc, pandocTypesVersion)
@@ -92,6 +92,17 @@ tests = map (localOption (QuickCheckTests 20))
       (doc $ para "one" <> para "two")
       (doc $ para "2")
 
+  , testCase "Smart constructors" $
+    assertFilterConversion "smart constructors returned a wrong result"
+      "smart-constructors.lua"
+      (doc $ para "")
+      (doc $ mconcat
+       [ bulletList [para "Hello", para "World"]
+       , definitionList [("foo", [para "placeholder"])]
+       , lineBlock ["Moin", "Welt"]
+       , orderedList [plain "one", plain "two"]
+       ])
+
   , testCase "Convert header upper case" $
     assertFilterConversion "converting header to upper case failed"
       "uppercase-header.lua"
diff --git a/test/lua/smart-constructors.lua b/test/lua/smart-constructors.lua
new file mode 100644
index 000000000..6e579a12f
--- /dev/null
+++ b/test/lua/smart-constructors.lua
@@ -0,0 +1,10 @@
+-- Test that constructors are "smart" in that they autoconvert
+-- types where sensible.
+function Para (_)
+  return {
+    pandoc.BulletList{pandoc.Para "Hello", pandoc.Para "World"},
+    pandoc.DefinitionList{{"foo", pandoc.Para "placeholder"}},
+    pandoc.LineBlock{"Moin", "Welt"},
+    pandoc.OrderedList{pandoc.Plain{pandoc.Str "one"}, pandoc.Plain "two"}
+  }
+end