1 // 2 // regexst.h 3 // 4 // Copyright (C) 2003-2007, 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 #if !UCONFIG_NO_REGULAR_EXPRESSIONS 23 24 #include "regeximp.h" 25 26 U_NAMESPACE_BEGIN 27 28 class UnicodeSet; 29 30 31 class RegexStaticSets : public UMemory { 32 public: 33 static RegexStaticSets *gStaticSets; // Ptr to all lazily initialized constant 34 // shared sets. 35 36 RegexStaticSets(UErrorCode *status); 37 ~RegexStaticSets(); 38 static void initGlobals(UErrorCode *status); 39 static UBool cleanup(); 40 41 UnicodeSet *fPropSets[URX_LAST_SET]; // The sets for common regex items, e.g. \s 42 Regex8BitSet fPropSets8[URX_LAST_SET]; // Fast bitmap sets for latin-1 range for above. 43 44 UnicodeSet *fRuleSets[10]; // Sets used while parsing regexp patterns. 45 UnicodeSet fUnescapeCharSet; // Set of chars handled by unescape when 46 // encountered with a \ in a pattern. 47 UnicodeSet *fRuleDigitsAlias; 48 UnicodeString fEmptyString; // An empty string, to be used when a matcher 49 // is created with no input. 50 51 }; 52 53 54 U_NAMESPACE_END 55 #endif // !UCONFIG_NO_REGULAR_EXPRESSIONS 56 #endif // REGEXST_H 57 58