Fix links without text

source/aqs2mdx.adb

@@ -38,6 +38,9 @@ procedure Aqs2mdx is
    Wikibook : constant League.Strings.Universal_String :=
      +"https://en.wikibooks.org/wiki/";
 
+   ClassName : constant League.Strings.Universal_String :=
+     +"className";
+
    ---------------
    -- Read_JSON --
    ---------------
@@ -142,10 +145,10 @@ procedure Aqs2mdx is
                Columns_Div : Pandoc.Content_Arr (1 .. Cell_List.Length);
 
                Outer_Attr : constant League.JSON.Values.JSON_Value :=
-                 Pandoc.Attr (+"className", +"multi-column");
+                 Pandoc.Attr (ClassName, +"multi-column");
 
                Inner_Attr : constant League.JSON.Values.JSON_Value :=
-                 Pandoc.Attr (+"className", +"multi-column-child");
+                 Pandoc.Attr (ClassName, +"multi-column-child");
 
             begin
                pragma Assert (Content.Length = 6);
@@ -209,6 +212,58 @@ procedure Aqs2mdx is
       return List;
    end Traverse_Block;
 
+   function Fix_Wikilink (Target : League.Strings.Universal_String) return
+      League.Strings.Universal_String
+   is
+   begin
+      if Target.Starts_With ("w:") then
+         return Wiki & Target.Tail_From (3);
+      else
+         return Wikibook & Target;
+      end if;
+   end Fix_Wikilink;
+
+   function Is_Direct_URL (Content : League.JSON.Arrays.JSON_Array) return
+     Boolean
+   is
+      Alt_List : constant League.JSON.Arrays.JSON_Array :=
+        Content (2).To_Array;
+      Target_Tuple : constant League.JSON.Arrays.JSON_Array :=
+        Content (3).To_Array;
+      Target : constant League.Strings.Universal_String :=
+        Target_Tuple (1).To_String;
+   begin
+      if Alt_List.Length /= 1 then
+         return False;
+      else
+         declare
+            Alt_Text_Object : constant League.JSON.Objects.JSON_Object :=
+              Alt_List (1).To_Object;
+            Alt_Text : constant League.Strings.Universal_String :=
+              Alt_Text_Object (Pandoc.Content_String).To_String;
+         begin
+            return Alt_Text = Target;
+         end;
+      end if;
+   end Is_Direct_URL;
+
+   function Create_String (Data : League.Strings.Universal_String) return
+      League.JSON.Values.JSON_Value
+   is
+      Block : League.JSON.Objects.JSON_Object;
+   begin
+      Block.Insert (
+         Pandoc.Type_String,
+         League.JSON.Values.To_JSON_Value (Pandoc.To_String (Inline_String))
+      );
+      Block.Insert (
+         Pandoc.Content_String,
+         League.JSON.Values.To_JSON_Value (Data)
+      );
+
+      return Block.To_JSON_Value;
+   end Create_String;
+
    -------------------
    -- Traverse_Link --
    -------------------
@@ -218,20 +273,25 @@ procedure Aqs2mdx is
    is
       Copy : League.JSON.Objects.JSON_Object := Block;
       Args : League.JSON.Arrays.JSON_Array := Copy (+"c").To_Array;
-      Fix  : League.JSON.Arrays.JSON_Array := Args (3).To_Array;
-      Link : League.Strings.Universal_String := Fix (1).To_String;
+      Link  : League.JSON.Arrays.JSON_Array := Args (3).To_Array;
+      Target : constant League.Strings.Universal_String := Link (1).To_String;
+      Title : constant League.Strings.Universal_String := Link (2).To_String;
    begin
-      if Fix (2).To_String.To_Wide_Wide_String = "wikilink" then
-         if Link.Starts_With ("w:") then
-            Link := Wiki & Link.Tail_From (3);
+
+      if Title = +"wikilink" then
+         if Is_Direct_URL (Args) then
+            return Create_String (Fix_Wikilink (Target));
          else
-            Link := Wikibook & Link;
+            Link.Replace (1, League.JSON.Values.To_JSON_Value (
+               Fix_Wikilink (Target)));
+            Link.Replace (2, League.JSON.Values.To_JSON_Value (+""));
+            Args.Replace (3, Link.To_JSON_Value);
+            Copy.Insert (Pandoc.Content_String, Args.To_JSON_Value);
+         end if;
+      else
+         if Is_Direct_URL (Args) then
+            return Create_String (Target);
          end if;
-
-         Fix.Replace (1, League.JSON.Values.To_JSON_Value (Link));
-         Fix.Replace (2, League.JSON.Values.To_JSON_Value (+""));
-         Args.Replace (3, Fix.To_JSON_Value);
-         Copy.Insert (+"c", Args.To_JSON_Value);
       end if;
 
       return Copy.To_JSON_Value;

source/pandoc.adb

@@ -50,7 +50,7 @@ package body Pandoc is
       Block.Insert (
          Type_String,
          League.JSON.Values.To_JSON_Value (
-            Obj_String_Representation (Block_Div)
+            To_String (Block_Div)
          )
       );
 
@@ -80,7 +80,7 @@ package body Pandoc is
       Block.Insert (
          Type_String,
          League.JSON.Values.To_JSON_Value (
-            Obj_String_Representation (Block_Div)
+            To_String (Block_Div)
          )
       );
 
@@ -98,12 +98,15 @@ package body Pandoc is
    function Get_Type (B : League.JSON.Objects.JSON_Object)
      return Object_Type is (Type_Mapping (B (Type_String).To_String));
 
+   function To_String (T : Object_Type) return League.Strings.Universal_String
+     is (Obj_String_Representation (T));
+
 begin
 
    for Key in Object_Type loop
       declare
          Str_Rep : constant League.Strings.Universal_String :=
-           Obj_String_Representation (Key);
+           To_String (Key);
       begin
          Type_Mapping.Insert (Str_Rep, Key);
       end;

source/pandoc.ads

@@ -51,6 +51,8 @@ package Pandoc is
 
    function Get_Type (B : League.JSON.Objects.JSON_Object) return Object_Type;
 
+   function To_String (T : Object_Type) return League.Strings.Universal_String;
+
    function "+" (T : Wide_Wide_String) return League.Strings.Universal_String
      renames League.Strings.To_Universal_String;