2020-11-04 09:31:00

1 files changed, 9 insertions, 6 deletions

diff --git a/tex/context/base/mkiv/data-tex.lua b/tex/context/base/mkiv/data-tex.lua
index e4795d09d..2e8642cdd 100644
--- a/tex/context/base/mkiv/data-tex.lua
+++ b/tex/context/base/mkiv/data-tex.lua
@@ -143,8 +143,9 @@ local function textopener(tag,filename,filehandle,coding)
         lines[noflines] = nil
     end
     pushinputname(filename)
-    local currentline, noflines = 0, noflines
-    local t = {
+    local currentline = 0
+    local noflines    = noflines
+    local handler = {
         filename    = filename,
         noflines    = noflines,
      -- currentline = 0,
@@ -153,10 +154,11 @@ local function textopener(tag,filename,filehandle,coding)
             if trace_locating then
                 report_tex("%a closer: %a closed",tag,filename)
             end
-            t = nil
+            handler = nil
+            lines   = nil
         end,
         reader      = function(self)
-            self = self or t
+            self = self or handler
          -- local currentline, noflines = self.currentline, self.noflines
             if currentline >= noflines then
                 return nil
@@ -164,6 +166,7 @@ local function textopener(tag,filename,filehandle,coding)
                 currentline = currentline + 1
              -- self.currentline = currentline
                 local content = lines[currentline]
+-- lines[currentline] = nil
                 if content == "" then
                     return ""
              -- elseif content == ctrl_d or ctrl_z then
@@ -181,14 +184,14 @@ local function textopener(tag,filename,filehandle,coding)
             end
         end
     }
-    setmetatableindex(t,function(t,k)
+    setmetatableindex(handler,function(t,k)
         if k == "currentline" then
             return currentline
         else
             -- no such key
         end
     end)
-    return t
+    return handler
 end
 
 helpers.settextopener(textopener) -- can only be done once