1 files changed, 94 insertions, 0 deletions
diff --git a/intl/icu/source/common/ustrcase_locale.cpp b/intl/icu/source/common/ustrcase_locale.cpp
new file mode 100644
index 0000000000..176add9c51
--- /dev/null
+++ b/intl/icu/source/common/ustrcase_locale.cpp
@@ -0,0 +1,94 @@
+// © 2016 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html
+/*
+*******************************************************************************
+*   Copyright (C) 2011, International Business Machines
+*   Corporation and others.  All Rights Reserved.
+*******************************************************************************
+*   file name:  ustrcase_locale.cpp
+*   encoding:   UTF-8
+*   tab size:   8 (not used)
+*   indentation:4
+*
+*   created on: 2011may31
+*   created by: Markus W. Scherer
+*
+*   Locale-sensitive case mapping functions (ones that call uloc_getDefault())
+*   were moved here to break dependency cycles among parts of the common library.
+*/
+
+#include "unicode/utypes.h"
+#include "uassert.h"
+#include "unicode/brkiter.h"
+#include "unicode/casemap.h"
+#include "unicode/ucasemap.h"
+#include "unicode/uloc.h"
+#include "unicode/ustring.h"
+#include "ucase.h"
+#include "ucasemap_imp.h"
+
+U_CFUNC int32_t
+ustrcase_getCaseLocale(const char *locale) {
+    if (locale == nullptr) {
+        locale = uloc_getDefault();
+    }
+    if (*locale == 0) {
+        return UCASE_LOC_ROOT;
+    } else {
+        return ucase_getCaseLocale(locale);
+    }
+}
+
+/* public API functions */
+
+U_CAPI int32_t U_EXPORT2
+u_strToLower(char16_t *dest, int32_t destCapacity,
+             const char16_t *src, int32_t srcLength,
+             const char *locale,
+             UErrorCode *pErrorCode) {
+    return ustrcase_mapWithOverlap(
+        ustrcase_getCaseLocale(locale), 0, UCASEMAP_BREAK_ITERATOR_NULL
+        dest, destCapacity,
+        src, srcLength,
+        ustrcase_internalToLower, *pErrorCode);
+}
+
+U_CAPI int32_t U_EXPORT2
+u_strToUpper(char16_t *dest, int32_t destCapacity,
+             const char16_t *src, int32_t srcLength,
+             const char *locale,
+             UErrorCode *pErrorCode) {
+    return ustrcase_mapWithOverlap(
+        ustrcase_getCaseLocale(locale), 0, UCASEMAP_BREAK_ITERATOR_NULL
+        dest, destCapacity,
+        src, srcLength,
+        ustrcase_internalToUpper, *pErrorCode);
+}
+
+U_NAMESPACE_BEGIN
+
+int32_t CaseMap::toLower(
+        const char *locale, uint32_t options,
+        const char16_t *src, int32_t srcLength,
+        char16_t *dest, int32_t destCapacity, Edits *edits,
+        UErrorCode &errorCode) {
+    return ustrcase_map(
+        ustrcase_getCaseLocale(locale), options, UCASEMAP_BREAK_ITERATOR_NULL
+        dest, destCapacity,
+        src, srcLength,
+        ustrcase_internalToLower, edits, errorCode);
+}
+
+int32_t CaseMap::toUpper(
+        const char *locale, uint32_t options,
+        const char16_t *src, int32_t srcLength,
+        char16_t *dest, int32_t destCapacity, Edits *edits,
+        UErrorCode &errorCode) {
+    return ustrcase_map(
+        ustrcase_getCaseLocale(locale), options, UCASEMAP_BREAK_ITERATOR_NULL
+        dest, destCapacity,
+        src, srcLength,
+        ustrcase_internalToUpper, edits, errorCode);
+}
+
+U_NAMESPACE_END