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