Add unicode source.
Change-Id: I5c44414dd3abe387599358e1e10134c36d03438c
diff --git a/CVTUTF7.H b/CVTUTF7.H
new file mode 100644
index 0000000..362fdd0
--- /dev/null
+++ b/CVTUTF7.H
@@ -0,0 +1,79 @@
+/* ================================================================ */
+/*
+File: ConvertUTF7.h
+Author: David B. Goldsmith
+Copyright (C) 1994 IBM Corporation All rights reserved.
+Revisions: Header update only July, 2001.
+
+This code is copyrighted. Under the copyright laws, this code may not
+be copied, in whole or part, without prior written consent of IBM Corporation.
+
+IBM Corporation grants the right to use this code as long as this ENTIRE
+copyright notice is reproduced in the code. The code is provided
+AS-IS, AND IBM CORPORATION DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR
+IMPLIED, INCLUDING, BUT NOT LIMITED TO IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT
+WILL IBM CORPORATION BE LIABLE FOR ANY DAMAGES WHATSOEVER (INCLUDING,
+WITHOUT LIMITATION, DAMAGES FOR LOSS OF BUSINESS PROFITS, BUSINESS
+INTERRUPTION, LOSS OF BUSINESS INFORMATION, OR OTHER PECUNIARY
+LOSS) ARISING OUT OF THE USE OR INABILITY TO USE THIS CODE, EVEN
+IF IBM CORPORATION HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
+BECAUSE SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF
+LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES, THE ABOVE
+LIMITATION MAY NOT APPLY TO YOU.
+
+RESTRICTED RIGHTS LEGEND: Use, duplication, or disclosure by the
+government is subject to restrictions as set forth in subparagraph
+(c)(l)(ii) of the Rights in Technical Data and Computer Software
+clause at DFARS 252.227-7013 and FAR 52.227-19.
+
+This code may be protected by one or more U.S. and International
+Patents.
+
+*/
+/* ================================================================ */
+
+/* ================================================================ */
+/* The following definitions are compiler-specific.
+ I would use wchar_t for UCS2/UTF16, except that the C standard
+ does not guarantee that it has at least 16 bits, so wchar_t is
+ no more portable than unsigned short!
+*/
+
+typedef unsigned short UCS2;
+
+/* ================================================================ */
+/* Each of these routines converts the text between *sourceStart and
+sourceEnd, putting the result into the buffer between *targetStart and
+targetEnd. Note: the end pointers are *after* the last item: e.g.
+*(sourceEnd - 1) is the last item.
+
+ The return result indicates whether the conversion was successful,
+and if not, whether the problem was in the source or target buffers.
+
+ After the conversion, *sourceStart and *targetStart are both
+updated to point to the end of last text successfully converted in
+the respective buffers.
+
+ In ConvertUCS2toUTF7, optional indicates whether UTF-7 optional
+characters should be directly encoded, and verbose controls whether the
+shift-out character, "-", is always emitted at the end of a shifted
+sequence.
+*/
+
+typedef enum {
+ ok, /* conversion successful */
+ sourceCorrupt, /* source contains invalid UTF-7 */
+ targetExhausted /* insuff. room in target for conversion */
+} ConversionResult;
+
+extern ConversionResult ConvertUCS2toUTF7 (
+ UCS2** sourceStart, UCS2* sourceEnd,
+ char** targetStart, char* targetEnd,
+ int optional, int verbose);
+
+extern ConversionResult ConvertUTF7toUCS2 (
+ char** sourceStart, char* sourceEnd,
+ UCS2** targetStart, UCS2* targetEnd);
+
+/* ================================================================ */