- Fix wide character support (#196099, #186701)

1 files changed, 62 insertions, 0 deletions

diff --git a/wlite/wlite_wctomb.c b/wlite/wlite_wctomb.c
new file mode 100644
index 000000000..25ca5a515
--- /dev/null
+++ b/wlite/wlite_wctomb.c
@@ -0,0 +1,62 @@
+/*
+ * $Id$
+ *
+ * Copyright (C) 2003  Red Hat, Inc.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ * Original Author: Adrian Havill <havill@redhat.com>
+ *
+ * Contributors:
+ */
+
+#include "wlite_config.h"   // wchar_t, NULL, size_t
+
+#include "wlite_wchar.h"    // prototypes
+#include "wlite_wctype.h"
+#include "wlite_stdlib.h"
+
+int
+wlite_wctomb(char *s, wchar_t c) {
+    if (s != NULL) {
+        if (c < 0x80) {
+            s[0] = 0x00 | ((int) (c >>  0) & 0x7F);
+            return 1;
+        }
+        else if (c < 0x800) {
+            s[0] = 0xC0 | ((int) (c >>  6) & 0x1F);
+            s[1] = 0x80 | ((int) (c >>  0) & 0x3F);
+            return 2;
+        }
+        else if (c < 0x10000) {
+            s[0] = 0xE0 | ((int) (c >> 12) & 0x0F);
+            s[1] = 0x80 | ((int) (c >>  6) & 0x3F);
+            s[2] = 0x80 | ((int) (c >>  0) & 0x3F);
+            return 3;
+        }
+        else if (c < 110000) {
+            s[0] = 0xF0 | ((int) (c >> 18) & 0x07);
+            s[1] = 0x80 | ((int) (c >> 12) & 0x3F);
+            s[2] = 0x80 | ((int) (c >>  6) & 0x3F);
+            s[3] = 0x80 | ((int) (c >>  0) & 0x3F);
+            return 4;
+        }
+    }
+    else {
+        wlite_0_mbstate_(NULL);
+        return WLITE_MBS_SHIFT_STATES_;
+    }
+    return -1;
+}