Author: yuripv
Date: Thu Nov 29 15:05:47 2018
New Revision: 341234
URL: https://svnweb.freebsd.org/changeset/base/341234

Log:
  MFC r340976:
  vi: fix UTF-8 detection.
  
  PR:           202290
  Submitted by: la...@fit.vutbr.cz
  Reviewed by:  bapt
  Differential Revision:        https://reviews.freebsd.org/D17950

Modified:
  stable/12/contrib/nvi/common/encoding.c
Directory Properties:
  stable/12/   (props changed)

Modified: stable/12/contrib/nvi/common/encoding.c
==============================================================================
--- stable/12/contrib/nvi/common/encoding.c     Thu Nov 29 14:49:33 2018        
(r341233)
+++ stable/12/contrib/nvi/common/encoding.c     Thu Nov 29 15:05:47 2018        
(r341234)
@@ -96,7 +96,7 @@ looks_utf8(const char *ibuf, size_t nbytes)
                                if (i >= nbytes)
                                        goto done;
 
-                               if (buf[i] & 0x40)      /* 10xxxxxx */
+                               if ((buf[i] & 0xc0) != 0x80)    /* 10xxxxxx */
                                        return -1;
                        }
 
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