Andreas Krennmair:

[apps/madmutt.git] / curs_lib.c

diff --git a/curs_lib.c b/curs_lib.c
index fcf17b6..d62d651 100644 (file)
--- a/curs_lib.c
+++ b/curs_lib.c
@@ -594,23 +594,41 @@ void mutt_format_string (char *dest, size_t destlen,
                          int arboreal)
 {
   char *p;
+  wchar_t wc;
   int w;
   size_t k, k2;
   char scratch[MB_LEN_MAX];
+  mbstate_t mbstate1, mbstate2;
 
+  memset(&mbstate1, 0, sizeof (mbstate1));
+  memset(&mbstate2, 0, sizeof (mbstate2));
   --destlen;
   p = dest;
-  for (; n; s+=1, n-=1)
+  for (; n && (k = mbrtowc (&wc, s, n, &mbstate1)); s += k, n -= k)
   {
-    w = 1;
-    k2 = 1;
-    if (w > max_width)
+    if (k == (size_t)(-1) || k == (size_t)(-2))
+    {
+      k = (k == (size_t)(-1)) ? 1 : n;
+      wc = replacement_char ();
+    }
+    if (arboreal && wc < M_TREE_MAX)
+      w = 1; /* hack */
+    else
+    {
+      if (!IsWPrint (wc))
+       wc = '?';
+      w = wcwidth (wc);
+    }
+    if (w >= 0)
+    {
+      if (w > max_width || (k2 = wcrtomb (scratch, wc, &mbstate2)) > destlen)
         break;
-    min_width -= w;
-    max_width -= w;
-    strncpy (p, s, k2);
-    p += k2;            
-    destlen -= k2;
+      min_width -= w;
+      max_width -= w;
+      strncpy (p, scratch, k2);
+      p += k2;            
+      destlen -= k2;
+    }
   }
   w = (int)destlen < min_width ? destlen : min_width;
   if (w <= 0)