| | 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 | |
| | 29 | U_NAMESPACE_BEGIN |
| | 30 | |
| | 31 | class UnicodeSet; |
| | 32 | |
| | 33 | |
| | 34 | class RegexStaticSets : public UMemory { |
| | 35 | public: |
| | 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 | |
| | 57 | U_NAMESPACE_END |
| | 58 | #endif // !UCONFIG_NO_REGULAR_EXPRESSIONS |
| | 59 | #endif // REGEXST_H |
| | 60 | |
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