1 files changed, 9 insertions, 5 deletions
diff --git a/tex/context/base/l-lpeg.lua b/tex/context/base/l-lpeg.lua
index 13294ab0d..50b14db06 100644
--- a/tex/context/base/l-lpeg.lua
+++ b/tex/context/base/l-lpeg.lua
@@ -234,12 +234,16 @@ function lpeg.split(separator,str)
 end
 
 function string.split(str,separator)
-    local c = cache[separator]
-    if not c then
-        c = tsplitat(separator)
-        cache[separator] = c
+    if separator then
+        local c = cache[separator]
+        if not c then
+            c = tsplitat(separator)
+            cache[separator] = c
+        end
+        return match(c,str)
+    else
+        return { str }
     end
-    return match(c,str)
 end
 
 local spacing  = patterns.spacer^0 * newline -- sort of strip