From 4e23e2d65e013077d200e85dbd85326909515bf6 Mon Sep 17 00:00:00 2001
From: Undecidable Robot <undecidabot@gmail.com>
Date: Sat, 21 May 2016 23:34:05 +0800
Subject: Fixing minor memory leak in error reporting

---
 relabel.lua | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/relabel.lua b/relabel.lua
index f849b58..5fa0db6 100644
--- a/relabel.lua
+++ b/relabel.lua
@@ -80,7 +80,7 @@ for i, err in ipairs(errinfo) do
   labels[err[1]] = i
 end
 
-local errfound
+local errfound = {}
 
 local function expect(pattern, labelname)
   local label = labels[labelname]
@@ -328,7 +328,6 @@ end
 local function compile (p, defs)
   if mm.type(p) == "pattern" then return p end   -- already compiled
   p = p .. " " -- for better reporting of column numbers in errors when at EOF
-  errfound = {}
   local cp, label, suffix = pattern:match(p, 1, defs)
   if #errfound > 0 then
     local lines = {}
@@ -344,6 +343,7 @@ local function compile (p, defs)
         tinsert(errors, rep(" ", col-1) .. "^")
       end
     end
+    errfound = {}
     error(concat(errors, "\n"))
   end
   return cp
-- 
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