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ICUBridgeCollationCompareFunctorImpl.hpp

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00001 /*
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00057 
00058 #if !defined(ICUBRIDGE_COLLATIONCOMPAREFUNCTORIMPL_GUARD_1357924680)
00059 #define ICUBRIDGE_COLLATIONCOMPAREFUNCTORIMPL_GUARD_1357924680
00060 
00061 
00062 
00063 #include <ICUBridge/ICUBridgeDefinitions.hpp>
00064 
00065 
00066 
00067 #include <list>
00068 
00069 
00070 
00071 #include <XSLT/StylesheetExecutionContextDefault.hpp>
00072 
00073 
00074 
00075 #include <unicode/coll.h>
00076 
00077 
00078 
00079 
00080 class XALAN_ICUBRIDGE_EXPORT ICUBridgeCollationCompareFunctorImpl : public StylesheetExecutionContextDefault::CollationCompareFunctor
00081 {
00082 public:
00083 
00084     typedef StylesheetExecutionContextDefault::eCaseOrder   eCaseOrder;
00085 
00086 
00092     ICUBridgeCollationCompareFunctorImpl(bool   fCacheCollators = false);
00093 
00094     ~ICUBridgeCollationCompareFunctorImpl();
00095 
00096     int
00097     operator()(
00098             const XalanDOMChar*     theLHS,
00099             const XalanDOMChar*     theRHS,
00100             eCaseOrder              theCaseOrder = StylesheetExecutionContextDefault::eDefault) const;
00101 
00102     int
00103     operator()(
00104             const XalanDOMChar*     theLHS,
00105             const XalanDOMChar*     theRHS,
00106             const XalanDOMChar*     theLocale,
00107             eCaseOrder              theCaseOrder = StylesheetExecutionContextDefault::eDefault) const;
00108 
00109     bool
00110     isValid() const
00111     {
00112         return m_isValid;
00113     }
00114 
00115 #if defined(XALAN_NO_NAMESPACES)
00116     typedef Collator                    CollatorType;
00117 #else
00118     typedef U_ICU_NAMESPACE::Collator   CollatorType;
00119 #endif
00120 
00121     struct CollationCacheStruct
00122     {
00123         CollationCacheStruct(
00124                 const XalanDOMString&   theLocale,
00125                 CollatorType*           theCollator) :
00126             m_locale(theLocale),
00127             m_collator(theCollator)
00128         {
00129         }
00130 
00131         CollationCacheStruct() :
00132             m_locale(),
00133             m_collator(0)
00134         {
00135         }
00136 
00137         void
00138         swap(CollationCacheStruct&  theOther)
00139         {
00140             m_locale.swap(theOther.m_locale);
00141 
00142             CollatorType* const     theTemp = m_collator;
00143 
00144             m_collator = theOther.m_collator;
00145 
00146             theOther.m_collator = theTemp;
00147         }
00148 
00149         XalanDOMString  m_locale;
00150 
00151         CollatorType*   m_collator;
00152 
00153         struct CollatorDeleteFunctor
00154         {
00155             void
00156             operator()(CollationCacheStruct&    theStruct) const
00157             {
00158                 delete theStruct.m_collator;
00159             }
00160         };
00161 
00162         struct CollatorFindFunctor
00163         {
00164             CollatorFindFunctor(const XalanDOMChar* theLocale) :
00165                 m_locale(theLocale)
00166             {
00167             }
00168 
00169             bool
00170             operator()(CollationCacheStruct&    theStruct) const
00171             {
00172                 return XalanDOMString::equals(theStruct.m_locale ,m_locale);
00173             }
00174 
00175             const XalanDOMChar* const   m_locale;
00176         };
00177     };
00178 
00179 #if defined(XALAN_NO_NAMESPACES)
00180     typedef list<CollationCacheStruct>          CollatorCacheListType;
00181 #else
00182     typedef std::list<CollationCacheStruct>     CollatorCacheListType;
00183 #endif
00184 
00185     enum { eCacheMax = 10 };
00186 
00187 private:
00188 
00189     int
00190     doDefaultCompare(
00191             const XalanDOMChar*     theLHS,
00192             const XalanDOMChar*     theRHS) const;
00193 
00194     int
00195     doCompare(
00196             const XalanDOMChar*     theLHS,
00197             const XalanDOMChar*     theRHS,
00198             const XalanDOMChar*     theLocale,
00199             eCaseOrder              theCaseOrder) const;
00200 
00201     int
00202     doCompareCached(
00203             const XalanDOMChar*     theLHS,
00204             const XalanDOMChar*     theRHS,
00205             const XalanDOMChar*     theLocale,
00206             eCaseOrder              theCaseOrder) const;
00207 
00208     int
00209     doCompare(
00210             const CollatorType&     theCollator,
00211             const XalanDOMChar*     theLHS,
00212             const XalanDOMChar*     theRHS) const;
00213 
00214     int
00215     doCompare(
00216             CollatorType&           theCollator,
00217             const XalanDOMChar*     theLHS,
00218             const XalanDOMChar*     theRHS,
00219             eCaseOrder              theCaseOrder) const;
00220 
00221     CollatorType*
00222     getCachedCollator(const XalanDOMChar*   theLocale) const;
00223 
00224     void
00225     cacheCollator(
00226             CollatorType*           theCollator,
00227             const XalanDOMChar*     theLocale) const;
00228 
00229 
00230     // Data members...
00231     bool                            m_isValid;
00232 
00233     CollatorType*                   m_defaultCollator;
00234 
00235     XalanDOMString                  m_defaultCollatorLocaleName;
00236 
00237     bool                            m_cacheCollators;
00238 
00239     mutable CollatorCacheListType   m_collatorCache;
00240 
00241     const static StylesheetExecutionContextDefault::DefaultCollationCompareFunctor  s_defaultFunctor;
00242 };
00243 
00244 
00245 
00246 #endif  // ICUBRIDGE_COLLATIONCOMPAREFUNCTORIMPL_GUARD_1357924680

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