From 81f65b49e828952d496c80a991397fdac96feea9 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?J=C3=B6rg=20Frings-F=C3=BCrst?= <debian@jff-webhosting.net>
Date: Wed, 9 Nov 2016 22:19:08 +0100
Subject: New upstream version 6.1.2

---
 src/big5.c | 23 +++++++++++++++++++++--
 1 file changed, 21 insertions(+), 2 deletions(-)

(limited to 'src/big5.c')

diff --git a/src/big5.c b/src/big5.c
index 3d44975..bc713ab 100644
--- a/src/big5.c
+++ b/src/big5.c
@@ -55,9 +55,28 @@ big5_mbc_enc_len(const UChar* p)
 }
 
 static int
-is_valid_mbc_string(const UChar* s, const UChar* end)
+is_valid_mbc_string(const UChar* p, const UChar* end)
 {
-  return onigenc_length_check_is_valid_mbc_string(ONIG_ENCODING_BIG5, s, end);
+  while (p < end) {
+    if (*p < 0x80) {
+      p++;
+    }
+    else if (*p < 0xa1) {
+      return FALSE;
+    }
+    else if (*p < 0xff) {
+      p++;
+      if (p >= end)  return FALSE;
+      if (*p < 0x40) return FALSE;
+      if (*p > 0x7e && *p < 0xa1) return FALSE;
+      if (*p == 0xff) return FALSE;
+      p++;
+    }
+    else
+      return FALSE;
+  }
+
+  return TRUE;
 }
 
 static OnigCodePoint
-- 
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