1 files changed, 134 insertions, 0 deletions
diff --git a/thirdparty/icu4c/common/ucasemap_titlecase_brkiter.cpp b/thirdparty/icu4c/common/ucasemap_titlecase_brkiter.cpp
new file mode 100644
index 0000000000..c21dfb7698
--- /dev/null
+++ b/thirdparty/icu4c/common/ucasemap_titlecase_brkiter.cpp
@@ -0,0 +1,134 @@
+// © 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:  ucasemap_titlecase_brkiter.cpp
+*   encoding:   UTF-8
+*   tab size:   8 (not used)
+*   indentation:4
+*
+*   created on: 2011jun02
+*   created by: Markus W. Scherer
+*
+*   Titlecasing functions that are based on BreakIterator
+*   were moved here to break dependency cycles among parts of the common library.
+*/
+
+#include "unicode/utypes.h"
+
+#if !UCONFIG_NO_BREAK_ITERATION
+
+#include "unicode/brkiter.h"
+#include "unicode/ubrk.h"
+#include "unicode/casemap.h"
+#include "unicode/ucasemap.h"
+#include "cmemory.h"
+#include "ucase.h"
+#include "ucasemap_imp.h"
+
+U_NAMESPACE_BEGIN
+
+void CaseMap::utf8ToTitle(
+        const char *locale, uint32_t options, BreakIterator *iter,
+        StringPiece src, ByteSink &sink, Edits *edits,
+        UErrorCode &errorCode) {
+    if (U_FAILURE(errorCode)) {
+        return;
+    }
+    UText utext = UTEXT_INITIALIZER;
+    utext_openUTF8(&utext, src.data(), src.length(), &errorCode);
+    LocalPointer<BreakIterator> ownedIter;
+    iter = ustrcase_getTitleBreakIterator(nullptr, locale, options, iter, ownedIter, errorCode);
+    if (iter == nullptr) {
+        utext_close(&utext);
+        return;
+    }
+    iter->setText(&utext, errorCode);
+    ucasemap_mapUTF8(
+        ustrcase_getCaseLocale(locale), options, iter,
+        src.data(), src.length(),
+        ucasemap_internalUTF8ToTitle, sink, edits, errorCode);
+    utext_close(&utext);
+}
+
+int32_t CaseMap::utf8ToTitle(
+        const char *locale, uint32_t options, BreakIterator *iter,
+        const char *src, int32_t srcLength,
+        char *dest, int32_t destCapacity, Edits *edits,
+        UErrorCode &errorCode) {
+    if (U_FAILURE(errorCode)) {
+        return 0;
+    }
+    UText utext=UTEXT_INITIALIZER;
+    utext_openUTF8(&utext, src, srcLength, &errorCode);
+    LocalPointer<BreakIterator> ownedIter;
+    iter = ustrcase_getTitleBreakIterator(nullptr, locale, options, iter, ownedIter, errorCode);
+    if(iter==NULL) {
+        utext_close(&utext);
+        return 0;
+    }
+    iter->setText(&utext, errorCode);
+    int32_t length=ucasemap_mapUTF8(
+        ustrcase_getCaseLocale(locale), options, iter,
+        dest, destCapacity,
+        src, srcLength,
+        ucasemap_internalUTF8ToTitle, edits, errorCode);
+    utext_close(&utext);
+    return length;
+}
+
+U_NAMESPACE_END
+
+U_NAMESPACE_USE
+
+U_CAPI const UBreakIterator * U_EXPORT2
+ucasemap_getBreakIterator(const UCaseMap *csm) {
+    return reinterpret_cast<UBreakIterator *>(csm->iter);
+}
+
+U_CAPI void U_EXPORT2
+ucasemap_setBreakIterator(UCaseMap *csm, UBreakIterator *iterToAdopt, UErrorCode *pErrorCode) {
+    if(U_FAILURE(*pErrorCode)) {
+        return;
+    }
+    delete csm->iter;
+    csm->iter=reinterpret_cast<BreakIterator *>(iterToAdopt);
+}
+
+U_CAPI int32_t U_EXPORT2
+ucasemap_utf8ToTitle(UCaseMap *csm,
+                     char *dest, int32_t destCapacity,
+                     const char *src, int32_t srcLength,
+                     UErrorCode *pErrorCode) {
+    if (U_FAILURE(*pErrorCode)) {
+        return 0;
+    }
+    UText utext=UTEXT_INITIALIZER;
+    utext_openUTF8(&utext, (const char *)src, srcLength, pErrorCode);
+    if (U_FAILURE(*pErrorCode)) {
+        return 0;
+    }
+    if(csm->iter==NULL) {
+        LocalPointer<BreakIterator> ownedIter;
+        BreakIterator *iter = ustrcase_getTitleBreakIterator(
+            nullptr, csm->locale, csm->options, nullptr, ownedIter, *pErrorCode);
+        if (iter == nullptr) {
+            utext_close(&utext);
+            return 0;
+        }
+        csm->iter = ownedIter.orphan();
+    }
+    csm->iter->setText(&utext, *pErrorCode);
+    int32_t length=ucasemap_mapUTF8(
+            csm->caseLocale, csm->options, csm->iter,
+            dest, destCapacity,
+            src, srcLength,
+            ucasemap_internalUTF8ToTitle, NULL, *pErrorCode);
+    utext_close(&utext);
+    return length;
+}
+
+#endif  // !UCONFIG_NO_BREAK_ITERATION