From ab70a8709c6af43311ab716d24f503e3ac2fe37e Mon Sep 17 00:00:00 2001
From: daurnimator <quae@daurnimator.com>
Date: Thu, 28 Dec 2017 19:11:39 +1100
Subject: src/lauxlib.js: lua_writestringerror gets a console.error invocation
 per newline

---
 src/lauxlib.js | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/src/lauxlib.js b/src/lauxlib.js
index aafdfff..584f386 100644
--- a/src/lauxlib.js
+++ b/src/lauxlib.js
@@ -869,7 +869,14 @@ const lua_writestringerror = function() {
     for (let i=0; i<arguments.length; i++) {
         let a = arguments[i];
         if (typeof process === "undefined") {
-            console.error(a);
+            /* split along new lines for separate console.error invocations */
+            do {
+                /* regexp uses [\d\D] to work around matching new lines
+                   the 's' flag is non-standard */
+                let r = /([^\n]*)\n?([\d\D]*)/.exec(a);
+                console.error(r[1]);
+                a = r[2];
+            } while (a !== "");
         } else {
             process.stderr.write(a);
         }
-- 
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