pandoc.List.lua: make `pandoc.List` a callable constructor

It is now possible to construct a new List via `pandoc.List()` instead of
`pandoc.List:new()`.

1 files changed, 20 insertions, 18 deletions

diff --git a/data/pandoc.List.lua b/data/pandoc.List.lua
index 6b3188a65..442e9c397 100644
--- a/data/pandoc.List.lua
+++ b/data/pandoc.List.lua
@@ -1,28 +1,27 @@
 --[[
 List.lua
 
-Copyright © 2017–2018 Albert Krewinkel
+Copyright © 2017–2020 Albert Krewinkel
 
-Permission to use, copy, modify, and/or distribute this software for any purpose
-with or without fee is hereby granted, provided that the above copyright notice
-and this permission notice appear in all copies.
+Permission to use, copy, modify, and/or distribute this software for any
+purpose with or without fee is hereby granted, provided that the above
+copyright notice and this permission notice appear in all copies.
 
-THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
-REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
-INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS
-OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
-TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF
-THIS SOFTWARE.
-]]
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. ]]
 
 --- Pandoc's List type and helper methods
 -- @classmod pandoc.List
 -- @author Albert Krewinkel
--- @copyright © 2017–2018 Albert Krewinkel
+-- @copyright © 2017–2020 Albert Krewinkel
 -- @license MIT
 local List = {
-  _VERSION = "0.1.0"
+  _VERSION = "1.0.0"
 }
 
 function List:new (o)
@@ -32,10 +31,6 @@ function List:new (o)
   return o
 end
 
-function List:__call (o)
-  return self:new(o)
-end
-
 --- Concatenates two lists.
 -- @param list second list concatenated to the first
 -- @return a new list containing all elements from list1 and list2
@@ -117,4 +112,11 @@ function List:filter (pred)
   return res
 end
 
+-- Set metatable with __call metamethod. This allows the use of `List`
+-- as a constructor function.
+local ListMT = {
+  __call = List.new
+}
+setmetatable(List, ListMT)
+
 return List