1 /* 2 ******************************************************************************* 3 * 4 * Copyright (C) 1998-2014, International Business Machines 5 * Corporation and others. All Rights Reserved. 6 * 7 ******************************************************************************* 8 * 9 * Private implementation header for C collation 10 * file name: ucol_imp.h 11 * encoding: US-ASCII 12 * tab size: 8 (not used) 13 * indentation:4 14 * 15 * created on: 2000dec11 16 * created by: Vladimir Weinstein 17 * 18 * Modification history 19 * Date Name Comments 20 * 02/16/2001 synwee Added UCOL_GETPREVCE for the use in ucoleitr 21 * 02/27/2001 synwee Added getMaxExpansion data structure in UCollator 22 * 03/02/2001 synwee Added UCOL_IMPLICIT_CE 23 * 03/12/2001 synwee Added pointer start to collIterate. 24 */ 25 26 #ifndef UCOL_IMP_H 27 #define UCOL_IMP_H 28 29 #include "unicode/utypes.h" 30 31 #if !UCONFIG_NO_COLLATION 32 33 // This part needs to compile as plain C code, for cintltst. 34 35 #include "unicode/ucol.h" 36 37 /** Check whether two collators are equal. Collators are considered equal if they 38 * will sort strings the same. This means that both the current attributes and the 39 * rules must be equivalent. 40 * @param source first collator 41 * @param target second collator 42 * @return TRUE or FALSE 43 * @internal ICU 3.0 44 */ 45 U_INTERNAL UBool U_EXPORT2 46 ucol_equals(const UCollator *source, const UCollator *target); 47 48 /** 49 * Convenience string denoting the Collation data tree 50 */ 51 #define U_ICUDATA_COLL U_ICUDATA_NAME U_TREE_SEPARATOR_STRING "coll" 52 53 #ifdef __cplusplus 54 55 #include "unicode/locid.h" 56 #include "unicode/ures.h" 57 58 U_NAMESPACE_BEGIN 59 60 struct CollationCacheEntry; 61 62 class Locale; 63 class UnicodeString; 64 class UnifiedCache; 65 66 /** Implemented in ucol_res.cpp. */ 67 class CollationLoader { 68 public: 69 static void appendRootRules(UnicodeString &s); 70 static void loadRules(const char *localeID, const char *collationType, 71 UnicodeString &rules, UErrorCode &errorCode); 72 // Adds a reference to returned value. 73 static const CollationCacheEntry *loadTailoring(const Locale &locale, UErrorCode &errorCode); 74 75 // Cache callback. Adds a reference to returned value. 76 const CollationCacheEntry *createCacheEntry(UErrorCode &errorCode); 77 78 private: 79 static void loadRootRules(UErrorCode &errorCode); 80 81 // The following members are used by loadTailoring() 82 // and the cache callback. 83 static const uint32_t TRIED_SEARCH = 1; 84 static const uint32_t TRIED_DEFAULT = 2; 85 static const uint32_t TRIED_STANDARD = 4; 86 87 CollationLoader(const CollationCacheEntry *re, const Locale &requested, UErrorCode &errorCode); 88 ~CollationLoader(); 89 90 // All loadFromXXX methods add a reference to the returned value. 91 const CollationCacheEntry *loadFromLocale(UErrorCode &errorCode); 92 const CollationCacheEntry *loadFromBundle(UErrorCode &errorCode); 93 const CollationCacheEntry *loadFromCollations(UErrorCode &errorCode); 94 const CollationCacheEntry *loadFromData(UErrorCode &errorCode); 95 96 // Adds a reference to returned value. 97 const CollationCacheEntry *getCacheEntry(UErrorCode &errorCode); 98 99 /** 100 * Returns the rootEntry (with one addRef()) if loc==root, 101 * or else returns a new cache entry with ref count 1 for the loc and 102 * the root tailoring. 103 */ 104 const CollationCacheEntry *makeCacheEntryFromRoot( 105 const Locale &loc, UErrorCode &errorCode) const; 106 107 /** 108 * Returns the entryFromCache as is if loc==validLocale, 109 * or else returns a new cache entry with ref count 1 for the loc and 110 * the same tailoring. In the latter case, a ref count is removed from 111 * entryFromCache. 112 */ 113 static const CollationCacheEntry *makeCacheEntry( 114 const Locale &loc, 115 const CollationCacheEntry *entryFromCache, 116 UErrorCode &errorCode); 117 118 const UnifiedCache *cache; 119 const CollationCacheEntry *rootEntry; 120 Locale validLocale; 121 Locale locale; 122 char type[16]; 123 char defaultType[16]; 124 uint32_t typesTried; 125 UBool typeFallback; 126 UResourceBundle *bundle; 127 UResourceBundle *collations; 128 UResourceBundle *data; 129 }; 130 131 U_NAMESPACE_END 132 133 #endif /* __cplusplus */ 134 135 #endif /* #if !UCONFIG_NO_COLLATION */ 136 137 #endif 138
