From 57dbee16f3a8e09e688f792c6e36a53de798e6cb Mon Sep 17 00:00:00 2001
From: Hans Hagen <pragma@wxs.nl>
Date: Tue, 17 Jul 2018 18:25:12 +0200
Subject: 2018-07-17 17:32:00

---
 tex/context/base/mkiv/mlib-lua.lua | 25 ++++++++++++++++++++-----
 1 file changed, 20 insertions(+), 5 deletions(-)

(limited to 'tex/context/base/mkiv/mlib-lua.lua')

diff --git a/tex/context/base/mkiv/mlib-lua.lua b/tex/context/base/mkiv/mlib-lua.lua
index 1c7b069cd..9a6a284d8 100644
--- a/tex/context/base/mkiv/mlib-lua.lua
+++ b/tex/context/base/mkiv/mlib-lua.lua
@@ -495,8 +495,8 @@ do
 
     -- experiment: names can change
 
-    local mppath     = aux.mppath
-    local mpsize     = aux.mpsize
+    local mppath     = aux.path
+    local mpsize     = aux.size
 
     local whitespace = lpegpatterns.whitespace
     local newline    = lpegpatterns.newline
@@ -522,12 +522,27 @@ do
         end
         local data = lpegmatch(pattern,io.loaddata(filename) or "")
         datasets[tag] = {
-            Data = data,
-            Line = function(n) mppath(data[n or 1]) end,
-            Size = function()  mpsize(data)         end,
+            data = data,
+            line = function(n) mppath(data[n or 1]) end,
+            size = function()  mpsize(data)         end,
         }
     end
 
+    table.setmetatablecall(datasets,function(t,k,f,...)
+        local d = datasets[k]
+        local t = type(d)
+        if t == "table" then
+            d = d[f]
+            if type(d) == "function" then
+                d(...)
+            else
+                mpvprint(...)
+            end
+        elseif t == "function" then
+            d(f,...)
+        end
+    end)
+
 end
 
 -- \startluacode
-- 
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