Add utf8.{c,h} for common UTF-8 util functions

We need to validate some UTF-8, so this adds an is_valid_utf8()
function, which is probably pretty slow but should work correctly.

Signed-off-by: Ran Benita <ran234@gmail.com>

1 files changed, 36 insertions, 0 deletions

diff --git a/src/utf8.h b/src/utf8.h
new file mode 100644
index 0000000..6371cb5
--- /dev/null
+++ b/src/utf8.h
@@ -0,0 +1,36 @@
+/*
+ * Copyright © 2012 Intel Corporation
+ * Copyright © 2014 Ran Benita <ran234@gmail.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ *
+ * Author: Rob Bradford <rob@linux.intel.com>
+ */
+
+#ifndef XKBCOMMON_UTF8_H
+#define XKBCOMMON_UTF8_H
+
+int
+utf32_to_utf8(uint32_t unichar, char *buffer);
+
+bool
+is_valid_utf8(const char *ss, size_t len);
+
+#endif