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// © 2016 and later: Unicode, Inc. and others.
// License & terms of use: http://www.unicode.org/copyright.html
//
// regexst.h
//
// Copyright (C) 2003-2010, 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"
#include "unicode/utext.h"
#if !UCONFIG_NO_REGULAR_EXPRESSIONS
#include "regeximp.h"
#include "regexcst.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);
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[kRuleSet_count] {}; // Sets used while parsing regexp patterns.
UnicodeSet fUnescapeCharSet {}; // Set of chars handled by unescape when
// encountered with a \ in a pattern.
UnicodeSet *fRuleDigitsAlias {};
UText *fEmptyText {}; // 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
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