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diff --git a/intl/icu/source/i18n/csmatch.h b/intl/icu/source/i18n/csmatch.h
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+++ b/intl/icu/source/i18n/csmatch.h
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+// © 2016 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html
+/*
+ **********************************************************************
+ *   Copyright (C) 2005-2012, International Business Machines
+ *   Corporation and others.  All Rights Reserved.
+ **********************************************************************
+ */
+
+#ifndef __CSMATCH_H
+#define __CSMATCH_H
+
+#include "unicode/uobject.h"
+
+#if !UCONFIG_NO_CONVERSION
+
+U_NAMESPACE_BEGIN
+
+class InputText;
+class CharsetRecognizer;
+
+/*
+ * CharsetMatch represents the results produced by one Charset Recognizer for one input text
+ *              Any confidence > 0 indicates a possible match, meaning that the input bytes
+ *              are at least legal.
+ *
+ *              The full results of a detect are represented by an array of these
+ *              CharsetMatch objects, each representing a possible matching charset.
+ *
+ *              Note that a single charset recognizer may detect multiple closely related
+ *              charsets, and set different names depending on the exact input bytes seen.
+ */
+class CharsetMatch : public UMemory
+{
+ private:
+    InputText               *textIn;
+    int32_t                  confidence;
+    const char              *fCharsetName;
+    const char              *fLang;
+
+ public:
+    CharsetMatch();
+
+    /**
+      * fully set the state of this CharsetMatch.
+      * Called by the CharsetRecognizers to record match results.
+      * Default (nullptr) parameters for names will be filled by calling the
+      *   corresponding getters on the recognizer.
+      */
+    void set(InputText               *input, 
+             const CharsetRecognizer *cr, 
+             int32_t                  conf, 
+             const char              *csName=nullptr,
+             const char              *lang=nullptr);
+
+    /**
+      * Return the name of the charset for this Match
+      */
+    const char *getName() const;
+
+    const char *getLanguage()const;
+
+    int32_t getConfidence()const;
+
+    int32_t getUChars(char16_t *buf, int32_t cap, UErrorCode *status) const;
+};
+
+U_NAMESPACE_END
+
+#endif
+#endif /* __CSMATCH_H */