зеркало из https://github.com/mozilla/gecko-dev.git
279 строки
9.2 KiB
C
279 строки
9.2 KiB
C
/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* The contents of this file are subject to the Netscape Public License
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* Version 1.0 (the "NPL"); you may not use this file except in
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* compliance with the NPL. You may obtain a copy of the NPL at
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* http://www.mozilla.org/NPL/
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*
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* Software distributed under the NPL is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
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* for the specific language governing rights and limitations under the
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* NPL.
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*
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* The Initial Developer of this code under the NPL is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All Rights
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* Reserved.
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*/
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#ifndef _NLSCOL_H
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#define _NLSCOL_H
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#include "nlsxp.h"
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#include "nlsuni.h"
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#include "nlsloc.h"
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#ifdef NLS_CPLUSPLUS
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#include "coll.h"
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#include "sortkey.h"
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#endif
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NLS_BEGIN_PROTOS
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/**************************** Types *********************************/
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/**
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* NO_DECOMPOSITION : Accented characters will not be decomposed for sorting.
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* Please see class description for more details.
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* CANONICAL_DECOMPOSITION : Characters that are canonical variants according
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* to Unicode 2.0 will be decomposed for sorting. This is the default setting.
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* FULL_DECOMPOSITION : Both canonical variants and compatibility variants be
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* decomposed for sorting.
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*/
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typedef int NLS_DecompositionMode;
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enum _NLS_DecompositionMode {
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NLS_NO_DECOMPOSITION,
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NLS_CANONICAL_DECOMPOSITION,
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NLS_FULL_DECOMPOSITION
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};
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/**
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* Base letter represents a primary difference. Set comparison
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* level to PRIMARY to ignore secondary and tertiary differences.
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* Use this to set the strength of a collation object.
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* Example of primary difference, "abc" < "abd"
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*
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* Diacritical differences on the same base letter represent a secondary
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* difference. Set comparison level to SECONDARY to ignore tertiary
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* differences. Use this to set the strength of a collation object.
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* Example of secondary difference, "<22>" >> "a".
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*
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* Uppercase and lowercase versions of the same character represents a
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* tertiary difference. Set comparison level to TERTIARY to include
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* all comparison differences. Use this to set the strength of a collation
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* object.
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* Example of tertiary difference, "abc" <<< "ABC".
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*
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* Two characters are considered "identical" when they are equivalent
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* unicode spellings.
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* For example, "<22>" == "a<>".
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*
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* ECollationStrength is also used to determine the strength of sort keys
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* generated from Collation objects.
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*/
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typedef int NLS_CollationStrength;
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enum _NLS_CollationStrength {
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NLS_PRIMARY,
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NLS_SECONDARY,
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NLS_TERTIARY,
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NLS_IDENTICAL
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};
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/* UnicodeString is the basic type which replaces the char* datatype.
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- A UnicodeString is an opaque data type, the Unicode String Accessors must be
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used to access the data.
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*/
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#ifndef NLS_CPLUSPLUS
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typedef struct _Collator Collator; /* depricated names */
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typedef struct _CollationKey CollationKey;
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typedef struct _Collation Collation;
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typedef struct _SortKey SortKey;
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#endif
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/************************ Library Termination ******************************/
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NLSCOLAPI_PUBLIC(NLS_ErrorCode)
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NLS_ColTerminate(void);
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/************************ Collation Constructor/Destructor ******************************/
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NLSCOLAPI_PUBLIC(const Collator*)
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NLS_GetDefaultCollation();
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NLSCOLAPI_PUBLIC(NLS_ErrorCode)
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NLS_NewCollation(Collator ** collation, const Locale * locale);
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NLSCOLAPI_PUBLIC(NLS_ErrorCode)
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NLS_DeleteCollation(Collator * collation);
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/************************ Collation Version ******************************/
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/*
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Get the major and minor version number from the collation engine.
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Major version numbers are changed when the collation key and/or sorting for a
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given locale has changed. The version number is of format 01.00 where
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the high order number is the Major version number, and the low order
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number is the minor version number.
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*/
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NLSCOLAPI_PUBLIC(const char*)
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NLS_GetCollationVersionNumber(Collator *collation);
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/************************ Collation Methods ******************************/
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NLSCOLAPI_PUBLIC(NLS_ComparisonResult)
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NLS_CollationCompare(const Collator * collation, const UnicodeString * source,
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const UnicodeString * target);
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NLSCOLAPI_PUBLIC(NLS_ComparisonResult)
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NLS_CollationCompareRange(const Collator * collation, const UnicodeString * source,
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TextOffset sourceStart, TextOffset sourceEnd,
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const UnicodeString * target,
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TextOffset targetStart, TextOffset targetEnd);
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/** Get a sort key.
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* key, must be created by the caller using NLS_NewSortKey prior to calling the routine.
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*/
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NLSCOLAPI_PUBLIC(NLS_ErrorCode)
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NLS_CollationGetSortKey(const Collator * collation, const UnicodeString * source,
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SortKey * key);
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/** Get a sort key.
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* key, must be created by the caller using NLS_NewSortKey prior to calling the routine.
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*/
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NLSCOLAPI_PUBLIC(NLS_ErrorCode)
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NLS_CollationGetSortKeyUniChar(const Collator * collation, const UniChar * source, size_t length,
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CollationKey * key);
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/** Get a sort key of a specified range.
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* key, must be created by the caller using NLS_NewSortKey, prior to calling the routine.
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*/
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NLSCOLAPI_PUBLIC(NLS_ErrorCode)
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NLS_CollationGetSortKeyForRange(const Collator * collation, const UnicodeString * source,
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TextOffset start, TextOffset end, CollationKey * key);
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/** Get a sort key for a non-Unicode encoding.
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* Key and Collator must be created by caller prior to calling the routine.
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*/
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NLSCOLAPI_PUBLIC(NLS_ErrorCode)
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NLS_CollationGetSortKeyChar(const Collator *collation, const byte* source, size_t length,
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const char* encoding, CollationKey *key);
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/**
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* Convenience method for comparing the equality of two strings based on
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* the collation rules.
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*/
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NLSCOLAPI_PUBLIC(nlsBool)
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NLS_CollationGreater(const Collator * collation, const UnicodeString * source,
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const UnicodeString * target);
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/**
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* Convenience method for comparing two strings based on the collation
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* rules.
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*/
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NLSCOLAPI_PUBLIC(nlsBool)
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NLS_CollationGreaterOrEqual(const Collator * collation, const UnicodeString * source,
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const UnicodeString * target);
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/**
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* Convenience method for comparing two strings based on the collation
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* rules.
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*/
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NLSCOLAPI_PUBLIC(nlsBool)
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NLS_CollationEquals(const Collator * collation, const UnicodeString * source,
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const UnicodeString * target);
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/**
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* Get the decomposition mode of the collation object.
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*/
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NLSCOLAPI_PUBLIC(NLS_DecompositionMode)
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NLS_CollationGetDecomposition(const Collator * collation);
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/**
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* Set the decomposition mode of the collation object.
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*/
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NLSCOLAPI_PUBLIC(NLS_ErrorCode)
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NLS_CollationSetDecomposition(Collator * collation, NLS_DecompositionMode mode);
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/**
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* Determines the minimum strength that will be use in comparison or
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* transformation.
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*/
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NLSCOLAPI_PUBLIC(NLS_CollationStrength)
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NLS_CollationGetStrength(const Collator * collation);
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/**
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* Sets the minimum strength to be used in comparison or transformation.
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*/
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NLSCOLAPI_PUBLIC(NLS_ErrorCode)
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NLS_CollationSetStrength(Collator * collation, NLS_CollationStrength newStrength);
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/**
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* Get name of the object for the desired Locale, in the desired langauge
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*/
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NLSCOLAPI_PUBLIC(NLS_ErrorCode)
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NLS_CollationGetDisplayName(const Collator * collation,
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const Locale * objectLocale,
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const Locale * displayLocale,
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UnicodeString * name);
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/**
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* Get name of the object for the desired Locale, in the langauge of the
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* default locale.
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*/
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NLSCOLAPI_PUBLIC(NLS_ErrorCode)
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NLS_CollationGetDefaultDisplayName(const Collator * collation,
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const Locale * objectLocale,
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UnicodeString * name);
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/************************ SortKey Methods ******************************/
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/**
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* This creates an empty sort key based on the null string. An empty
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* sort key contains no sorting information. When comparing two empty
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* sort keys, the result is EQUAL.
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*/
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NLSCOLAPI_PUBLIC(NLS_ErrorCode)
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NLS_NewSortKey(CollationKey ** key);
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/**
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* Creates a sort key based on the sort key values.
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*/
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NLSCOLAPI_PUBLIC(NLS_ErrorCode)
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NLS_NewSortKeyFromValues(CollationKey ** key,
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const byte * values,
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size_t count);
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/**
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* Sort key destructor.
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*/
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NLSCOLAPI_PUBLIC(NLS_ErrorCode)
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NLS_DeleteSortKey(CollationKey *key);
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/**
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* Compare if two sort keys are the same.
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* @param source the sort key to compare to.
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* @return Returns TRUE if two sort keys are equal, FALSE otherwise.
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*/
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NLSCOLAPI_PUBLIC(nlsBool)
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NLS_SortKeyEqual(const CollationKey * source, const CollationKey * target);
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/**
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* Extracts the sort key values, the byte array must be pre-allocated
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* by the caller, and count must specify the number of elements.
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*/
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NLSCOLAPI_PUBLIC(size_t)
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NLS_GetSortKeyValueLength(const CollationKey * source);
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NLSCOLAPI_PUBLIC(NLS_ErrorCode)
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NLS_SortKeyExtractValues(const CollationKey * source, byte * array, size_t count);
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/**
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* Convenience method which does a string(bit-wise) comparison of the
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* two sort keys.
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*/
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NLSCOLAPI_PUBLIC(NLS_ComparisonResult)
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NLS_SortKeyCompare(const CollationKey * source, const CollationKey * target);
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/************************ End ******************************/
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NLS_END_PROTOS
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#endif /* _NLSCOL_H */
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