1// © 2016 and later: Unicode, Inc. and others.
2// License & terms of use: http://www.unicode.org/copyright.html
3//
4// regexst.h
5//
6// Copyright (C) 2003-2010, International Business Machines Corporation and others.
7// All Rights Reserved.
8//
9// This file contains declarations for the class RegexStaticSets
10//
11// This class is internal to the regular expression implementation.
12// For the public Regular Expression API, see the file "unicode/regex.h"
13//
14// RegexStaticSets groups together the common UnicodeSets that are needed
15// for compiling or executing RegularExpressions. This grouping simplifies
16// the thread safe lazy creation and sharing of these sets across
17// all instances of regular expressions.
18//
19
20#ifndef REGEXST_H
21#define REGEXST_H
22
23#include "unicode/utypes.h"
24#include "unicode/utext.h"
25#if !UCONFIG_NO_REGULAR_EXPRESSIONS
26
27#include "regeximp.h"
28
29U_NAMESPACE_BEGIN
30
31class UnicodeSet;
32
33
34class RegexStaticSets : public UMemory {
35public:
36 static RegexStaticSets *gStaticSets; // Ptr to all lazily initialized constant
37 // shared sets.
38
39 RegexStaticSets(UErrorCode *status);
40 ~RegexStaticSets();
41 static void initGlobals(UErrorCode *status);
42 static UBool cleanup();
43
44 UnicodeSet *fPropSets[URX_LAST_SET]; // The sets for common regex items, e.g. \s
45 Regex8BitSet fPropSets8[URX_LAST_SET]; // Fast bitmap sets for latin-1 range for above.
46
47 UnicodeSet fRuleSets[10]; // Sets used while parsing regexp patterns.
48 UnicodeSet fUnescapeCharSet; // Set of chars handled by unescape when
49 // encountered with a \ in a pattern.
50 UnicodeSet *fRuleDigitsAlias;
51 UText *fEmptyText; // An empty string, to be used when a matcher
52 // is created with no input.
53
54};
55
56
57U_NAMESPACE_END
58#endif // !UCONFIG_NO_REGULAR_EXPRESSIONS
59#endif // REGEXST_H
60
61