1 files changed, 60 insertions, 0 deletions
diff --git a/sed/mbcs.c b/sed/mbcs.c
new file mode 100644
index 0000000..964e352
--- /dev/null
+++ b/sed/mbcs.c
@@ -0,0 +1,60 @@
+/*  GNU SED, a batch stream editor.
+    Copyright (C) 2003, 2006, 2009 Free Software Foundation, Inc.
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 3, or (at your option)
+    any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
+
+#include "sed.h"
+#include <stdlib.h>
+#include <string.h>
+
+#include "localcharset.h"
+
+int mb_cur_max;
+bool is_utf8;
+
+/* Add a byte to the multibyte character represented by the state
+   CUR_STAT, and answer its length if a character is completed,
+   or -2 if it is yet to be completed.  */
+int brlen (ch, cur_stat)
+     int ch;
+     mbstate_t *cur_stat;
+{
+  char c = ch;
+
+  /* If we use the generic brlen, then MBRLEN == mbrlen.  */
+  int result = mbrtowc(NULL, &c, 1, cur_stat);
+
+  /* An invalid sequence is treated like a singlebyte character. */
+  if (result == -1)
+    {
+      memset (cur_stat, 0, sizeof (mbstate_t));
+      return 1;
+    }
+
+  return result;
+}
+
+void
+initialize_mbcs ()
+{
+  /* For UTF-8, we know that the encoding is stateless.  */
+  const char *codeset_name;
+
+  codeset_name = locale_charset ();
+  is_utf8 = (strcmp (codeset_name, "UTF-8") == 0);
+
+  mb_cur_max = MB_CUR_MAX;
+}
+