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diff --git a/Build/source/libs/icu/icu-xetex/i18n/regexst.h b/Build/source/libs/icu/icu-xetex/i18n/regexst.h
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+++ b/Build/source/libs/icu/icu-xetex/i18n/regexst.h
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+//
+// regexst.h
+//
+// Copyright (C) 2003-2007, International Business Machines Corporation and others.
+// All Rights Reserved.
+//
+// This file contains declarations for the class RegexStaticSets
+//
+// This class is internal to the regular expression implementation.
+// For the public Regular Expression API, see the file "unicode/regex.h"
+//
+// RegexStaticSets groups together the common UnicodeSets that are needed
+// for compiling or executing RegularExpressions. This grouping simplifies
+// the thread safe lazy creation and sharing of these sets across
+// all instances of regular expressions.
+//
+
+#ifndef REGEXST_H
+#define REGEXST_H
+
+#include "unicode/utypes.h"
+#if !UCONFIG_NO_REGULAR_EXPRESSIONS
+
+#include "regeximp.h"
+
+U_NAMESPACE_BEGIN
+
+class UnicodeSet;
+
+
+class RegexStaticSets : public UMemory {
+public:
+ static RegexStaticSets *gStaticSets; // Ptr to all lazily initialized constant
+ // shared sets.
+
+ RegexStaticSets(UErrorCode *status);
+ ~RegexStaticSets();
+ static void initGlobals(UErrorCode *status);
+ static UBool cleanup();
+
+ UnicodeSet *fPropSets[URX_LAST_SET]; // The sets for common regex items, e.g. \s
+ Regex8BitSet fPropSets8[URX_LAST_SET]; // Fast bitmap sets for latin-1 range for above.
+
+ UnicodeSet *fRuleSets[10]; // Sets used while parsing regexp patterns.
+ UnicodeSet fUnescapeCharSet; // Set of chars handled by unescape when
+ // encountered with a \ in a pattern.
+ UnicodeSet *fRuleDigitsAlias;
+ UnicodeString fEmptyString; // An empty string, to be used when a matcher
+ // is created with no input.
+
+};
+
+
+U_NAMESPACE_END
+#endif // !UCONFIG_NO_REGULAR_EXPRESSIONS
+#endif // REGEXST_H
+