in input_tab(), make sure that we don't set *place to the middle of a

multibyte character


git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@2556 35c25a1d-7b9e-4130-9fde-d3aeb78583b8

ChangeLog

@@ -55,6 +55,9 @@ CVS code -
 	  long instead of an unsigned int. (DLR)
   cwd_tab_completion(), browser_init()
 	- Rename variable next to nextdir to avoid confusion. (DLR)
+  input_tab()
+	- Make sure that we don't set *place to the middle of a
+	  multibyte character. (DLR)
   do_browser()
 	- Don't treat NANO_CANCEL_KEY as NANO_EXIT_KEY anymore, for
 	  consistency. (DLR)

src/files.c

@@ -2225,7 +2225,10 @@ char *input_tab(char *buf, size_t *place, bool *lastwastab, bool *list)
 	    charmove(buf + common_len, buf + *place,
 		buflen - *place + 1);
 	    charcpy(buf, mzero, common_len);
-	    *place = common_len;
+
+	    /* Make sure that we don't advance the cursor to the middle
+	     * of a multibyte character. */
+	    *place = mbstrnlen(buf, common_len);
 	} else if (*lastwastab == FALSE || num_matches < 2)
 	    *lastwastab = TRUE;
 	else {