1 files changed, 89 insertions, 0 deletions
diff --git a/ext/intl/intl_convertcpp.cpp b/ext/intl/intl_convertcpp.cpp
new file mode 100644
index 000000000..f699a3c61
--- /dev/null
+++ b/ext/intl/intl_convertcpp.cpp
@@ -0,0 +1,89 @@
+/*
+   +----------------------------------------------------------------------+
+   | PHP Version 5                                                        |
+   +----------------------------------------------------------------------+
+   | This source file is subject to version 3.01 of the PHP license,      |
+   | that is bundled with this package in the file LICENSE, and is        |
+   | available through the world-wide-web at the following url:           |
+   | http://www.php.net/license/3_01.txt                                  |
+   | If you did not receive a copy of the PHP license and are unable to   |
+   | obtain it through the world-wide-web, please send a note to          |
+   | license@php.net so we can mail you a copy immediately.               |
+   +----------------------------------------------------------------------+
+   | Authors: Gustavo Lopes <cataphract@php.net>                          |
+   +----------------------------------------------------------------------+
+*/
+
+/* $Id$ */
+
+#include "intl_cppshims.h"
+
+#include "intl_convertcpp.h"
+#include <unicode/ustring.h>
+extern "C" {
+#include <php.h>
+}
+
+/* {{{ intl_stringFromChar */
+int intl_stringFromChar(UnicodeString &ret, char *str, int32_t str_len, UErrorCode *status)
+{
+	//the number of UTF-16 code units is not larger than that of UTF-8 code
+	//units, + 1 for the terminator
+	int32_t capacity = str_len + 1;
+
+	//no check necessary -- if NULL will fail ahead
+	UChar	*utf16 = ret.getBuffer(capacity);
+	int32_t utf16_len = 0;
+	*status = U_ZERO_ERROR;
+	u_strFromUTF8WithSub(utf16, ret.getCapacity(), &utf16_len,
+		str, str_len, U_SENTINEL /* no substitution */, NULL,
+		status);
+	ret.releaseBuffer(utf16_len);
+	if (U_FAILURE(*status)) {
+		ret.setToBogus();
+		return FAILURE;
+	}
+	return SUCCESS;
+}
+/* }}} */
+
+/* {{{ intl_charFromString
+ * faster than doing intl_convert_utf16_to_utf8(&res, &res_len,
+ *		from.getBuffer(), from.length(), &status),
+ * but consumes more memory */
+int intl_charFromString(const UnicodeString &from, char **res, int *res_len, UErrorCode *status)
+{
+	if (from.isBogus()) {
+		return FAILURE;
+	}
+
+	//the number of UTF-8 code units is not larger than that of UTF-16 code
+	//units * 3 + 1 for the terminator
+	int32_t capacity = from.length() * 3 + 1;
+
+	if (from.isEmpty()) {
+		*res = (char*)emalloc(1);
+		**res = '\0';
+		*res_len = 0;
+		return SUCCESS;
+	}
+
+	*res = (char*)emalloc(capacity);
+	*res_len = 0; //tbd
+
+	const UChar *utf16buf = from.getBuffer();
+	int32_t actual_len;
+	u_strToUTF8WithSub(*res, capacity - 1, &actual_len, utf16buf, from.length(),
+		U_SENTINEL, NULL, status);
+
+	if (U_FAILURE(*status)) {
+		efree(*res);
+		*res = NULL;
+		return FAILURE;
+	}
+	(*res)[actual_len] = '\0';
+	*res_len = (int)actual_len;
+	
+	return SUCCESS;
+}
+/* }}} */