From b553664f54034e8c04ae6f9cc44f16b7f516518b Mon Sep 17 00:00:00 2001
From: Sverker Eriksson <sverker@erlang.org>
Date: Fri, 11 Jan 2013 17:27:29 +0100
Subject: erl_interface: utf8 atoms continued

---
 lib/erl_interface/src/legacy/erl_format.c | 20 ++++++++++++++++----
 1 file changed, 16 insertions(+), 4 deletions(-)

(limited to 'lib/erl_interface/src/legacy/erl_format.c')

diff --git a/lib/erl_interface/src/legacy/erl_format.c b/lib/erl_interface/src/legacy/erl_format.c
index dc85806c36..533241e396 100644
--- a/lib/erl_interface/src/legacy/erl_format.c
+++ b/lib/erl_interface/src/legacy/erl_format.c
@@ -574,10 +574,22 @@ static int ematch(ETERM *p, ETERM *t)
 
   switch (type_p) {
 
-  case ERL_ATOM:
-    return p->uval.aval.len == t->uval.aval.len &&
-      memcmp(p->uval.aval.a, t->uval.aval.a, p->uval.aval.len) == 0;
-	
+  case ERL_ATOM: {
+      Erl_Atom_data* pa = &p->uval.aval.d;
+      Erl_Atom_data* ta = &t->uval.aval.d;
+      if (pa->utf8 && ta->utf8) {
+	  return pa->lenU == ta->lenU && memcmp(pa->utf8, ta->utf8, pa->lenU)==0; 
+      }
+      else if (pa->latin1 && ta->latin1) {
+	  return pa->lenL == ta->lenL && memcmp(pa->latin1, ta->latin1, pa->lenL)==0; 
+      }
+      else if (pa->latin1) {
+	  return cmp_latin1_vs_utf8(pa->latin1, pa->lenL, ta->utf8, ta->lenU)==0;
+      }
+      else {
+	  return cmp_latin1_vs_utf8(ta->latin1, ta->lenL, pa->utf8, pa->lenU)==0;
+      }
+  }
   case ERL_VARIABLE:
     if (strcmp(p->uval.vval.name, "_") == 0) /* anon. variable */
       return ERL_TRUE;
-- 
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