git.saurik.com Git - apple/icu.git/blame_incremental

... / ...

Commit	Line	Data
	1	// © 2016 and later: Unicode, Inc. and others.
	2	// License & terms of use: http://www.unicode.org/copyright.html
	3	/*
	4	*******************************************************************************
	5	*
	6	* Copyright (C) 1998-2014, International Business Machines
	7	* Corporation and others. All Rights Reserved.
	8	*
	9	*******************************************************************************
	10	*
	11	* Private implementation header for C collation
	12	* file name: ucol_imp.h
	13	* encoding: UTF-8
	14	* tab size: 8 (not used)
	15	* indentation:4
	16	*
	17	* created on: 2000dec11
	18	* created by: Vladimir Weinstein
	19	*
	20	* Modification history
	21	* Date Name Comments
	22	* 02/16/2001 synwee Added UCOL_GETPREVCE for the use in ucoleitr
	23	* 02/27/2001 synwee Added getMaxExpansion data structure in UCollator
	24	* 03/02/2001 synwee Added UCOL_IMPLICIT_CE
	25	* 03/12/2001 synwee Added pointer start to collIterate.
	26	*/
	27
	28	#ifndef UCOL_IMP_H
	29	#define UCOL_IMP_H
	30
	31	#include "unicode/utypes.h"
	32
	33	#if !UCONFIG_NO_COLLATION
	34
	35	// This part needs to compile as plain C code, for cintltst.
	36
	37	#include "unicode/ucol.h"
	38
	39	/** Check whether two collators are equal. Collators are considered equal if they
	40	* will sort strings the same. This means that both the current attributes and the
	41	* rules must be equivalent.
	42	* @param source first collator
	43	* @param target second collator
	44	* @return TRUE or FALSE
	45	* @internal ICU 3.0
	46	*/
	47	U_INTERNAL UBool U_EXPORT2
	48	ucol_equals(const UCollator source, const UCollator target);
	49
	50	/**
	51	* Convenience string denoting the Collation data tree
	52	*/
	53	#define U_ICUDATA_COLL U_ICUDATA_NAME U_TREE_SEPARATOR_STRING "coll"
	54
	55	#ifdef __cplusplus
	56
	57	#include "unicode/locid.h"
	58	#include "unicode/ures.h"
	59
	60	U_NAMESPACE_BEGIN
	61
	62	struct CollationCacheEntry;
	63
	64	class Locale;
	65	class UnicodeString;
	66	class UnifiedCache;
	67
	68	/** Implemented in ucol_res.cpp. */
	69	class CollationLoader {
	70	public:
	71	static void appendRootRules(UnicodeString &s);
	72	static void loadRules(const char localeID, const char collationType,
	73	UnicodeString &rules, UErrorCode &errorCode);
	74	// Adds a reference to returned value.
	75	static const CollationCacheEntry *loadTailoring(const Locale &locale, UErrorCode &errorCode);
	76
	77	// Cache callback. Adds a reference to returned value.
	78	const CollationCacheEntry *createCacheEntry(UErrorCode &errorCode);
	79
	80	private:
	81	static void U_CALLCONV loadRootRules(UErrorCode &errorCode);
	82
	83	// The following members are used by loadTailoring()
	84	// and the cache callback.
	85	static const uint32_t TRIED_SEARCH = 1;
	86	static const uint32_t TRIED_DEFAULT = 2;
	87	static const uint32_t TRIED_STANDARD = 4;
	88
	89	CollationLoader(const CollationCacheEntry *re, const Locale &requested, UErrorCode &errorCode);
	90	~CollationLoader();
	91
	92	// All loadFromXXX methods add a reference to the returned value.
	93	const CollationCacheEntry *loadFromLocale(UErrorCode &errorCode);
	94	const CollationCacheEntry *loadFromBundle(UErrorCode &errorCode);
	95	const CollationCacheEntry *loadFromCollations(UErrorCode &errorCode);
	96	const CollationCacheEntry *loadFromData(UErrorCode &errorCode);
	97
	98	// Adds a reference to returned value.
	99	const CollationCacheEntry *getCacheEntry(UErrorCode &errorCode);
	100
	101	/**
	102	* Returns the rootEntry (with one addRef()) if loc==root,
	103	* or else returns a new cache entry with ref count 1 for the loc and
	104	* the root tailoring.
	105	*/
	106	const CollationCacheEntry *makeCacheEntryFromRoot(
	107	const Locale &loc, UErrorCode &errorCode) const;
	108
	109	/**
	110	* Returns the entryFromCache as is if loc==validLocale,
	111	* or else returns a new cache entry with ref count 1 for the loc and
	112	* the same tailoring. In the latter case, a ref count is removed from
	113	* entryFromCache.
	114	*/
	115	static const CollationCacheEntry *makeCacheEntry(
	116	const Locale &loc,
	117	const CollationCacheEntry *entryFromCache,
	118	UErrorCode &errorCode);
	119
	120	const UnifiedCache *cache;
	121	const CollationCacheEntry *rootEntry;
	122	Locale validLocale;
	123	Locale locale;
	124	char type[16];
	125	char defaultType[16];
	126	uint32_t typesTried;
	127	UBool typeFallback;
	128	UResourceBundle *bundle;
	129	UResourceBundle *collations;
	130	UResourceBundle *data;
	131	};
	132
	133	U_NAMESPACE_END
	134
	135	#endif /* __cplusplus */
	136
	137	#endif /* #if !UCONFIG_NO_COLLATION */
	138
	139	#endif