Add unicode.org UTF-8/16/32 conversion code.

Add wrapper functions to make things more convenient.



git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@88 4c0a9323-5329-0410-9bdc-e9ce6186880e

1 files changed, 65 insertions, 0 deletions

diff --git a/src/common/string_conversion.h b/src/common/string_conversion.h
new file mode 100644
index 00000000..34195467
--- /dev/null
+++ b/src/common/string_conversion.h
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+// Copyright (c) 2006, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// string_conversion.h: Conversion between different UTF-8/16/32 encodings.
+
+#ifndef COMMON_STRING_CONVERSION_H__
+#define COMMON_STRING_CONVERSION_H__
+
+#include <string>
+#include <vector>
+
+namespace google_airbag {
+  
+using std::vector;
+
+// Convert |in| to UTF-16 into |out|.  Use platform byte ordering.  If the
+// conversion failed, |out| will be zero length.
+void UTF8ToUTF16(const char *in, vector<u_int16_t> *out);
+
+// Convert at least one character (up to a maximum of |in_length|) from |in|
+// to UTF-16 into |out|.  Return the number of characters consumed from |in|.
+// Any unused characters in |out| will be initialized to 0.  No memory will
+// be allocated by this routine.
+int UTF8ToUTF16Char(const char *in, int in_length, u_int16_t out[2]);
+
+// Convert |in| to UTF-16 into |out|.  Use platform byte ordering.  If the
+// conversion failed, |out| will be zero length.
+void UTF32ToUTF16(const wchar_t *in, vector<u_int16_t> *out);
+
+// Convert |in| to UTF-16 into |out|.  Any unused characters in |out| will be
+// initialized to 0.  No memory will be allocated by this routine.
+void UTF32ToUTF16Char(wchar_t in, u_int16_t out[2]);
+
+// Convert |in| to UTF-8.  If |swap| is true, swap bytes before converting.
+std::string UTF16ToUTF8(const vector<u_int16_t> &in, bool swap);
+
+}  // namespace google_airbag
+
+#endif  // COMMON_STRING_CONVERSION_H__