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98 lines
3.5 KiB
C++
98 lines
3.5 KiB
C++
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/* -*- Mode: C++; tab-width: 2; 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 nsICollation_h__
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#define nsICollation_h__
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#include "nsISupports.h"
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#include "nscore.h"
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#include "nsString.h"
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#include "nsILocale.h"
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// {D4CF2F80-A98B-11d2-9119-006008A6EDF6}
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#define NS_ICOLLATIONFACTORY_IID \
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{ 0xd4cf2f80, 0xa98b, 0x11d2, \
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{ 0x91, 0x19, 0x0, 0x60, 0x8, 0xa6, 0xed, 0xf6 } }
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// {CDBFD3F0-A4FE-11d2-9119-006008A6EDF6}
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#define NS_ICOLLATION_IID \
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{ 0xcdbfd3f0, 0xa4fe, 0x11d2, \
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{ 0x91, 0x19, 0x0, 0x60, 0x8, 0xa6, 0xed, 0xf6 } }
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typedef enum {
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kCollationStrengthDefault = 0, // use the primary comparison for the given local - no flags)
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kCollationCaseInsensitiveAscii = 1, // do not consider case differences when doing the comparison i.e. A=a)
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kCollationAccentInsenstive = 2, // do not consider accent differences when doing the comparison a=á)
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kCollationCaseSensitive = kCollationStrengthDefault,
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kCollationCaseInSensitive = (kCollationCaseInsensitiveAscii | kCollationAccentInsenstive)
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} nsCollationStrength;
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class nsICollation;
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// Create a collation interface for an input locale.
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//
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class nsICollationFactory : public nsISupports {
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public:
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NS_IMETHOD CreateCollation(nsILocale* locale, nsICollation** instancePtr) = 0;
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};
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// Locale sensitive collation interface
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//
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class nsICollation : public nsISupports {
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public:
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// compare two strings
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// result is same as strcmp
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NS_IMETHOD CompareString(const nsCollationStrength strength,
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const nsString& string1, const nsString& string2, PRInt32* result) = 0;
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// get a length (of character) of a sort key to be generated by an input string
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// length is a byte length
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NS_IMETHOD GetSortKeyLen(const nsCollationStrength strength,
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const nsString& stringIn, PRUint32* outLen) = 0;
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// create sort key from input string
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// length is a byte length, caller should allocate a memory for a key
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NS_IMETHOD CreateRawSortKey(const nsCollationStrength strength,
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const nsString& stringIn, PRUint8* key, PRUint32 *outLen) = 0;
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// create a sort key (nsString)
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NS_IMETHOD CreateSortKey(const nsCollationStrength strength,
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const nsString& stringIn, nsString& key) = 0;
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// compare two sort keys
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// length is a byte length, result is same as strcmp
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NS_IMETHOD CompareRawSortKey(const PRUint8* key1, const PRUint32 len1,
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const PRUint8* key2, const PRUint32 len2,
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PRInt32* result) = 0;
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// compare two sort keys (nsString)
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NS_IMETHOD CompareSortKey(const nsString& key1, const nsString& key2, PRInt32* result) = 0;
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// init this interface to a specified locale (should only be called by collation factory)
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//
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NS_IMETHOD Initialize(nsILocale* locale) = 0;
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};
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#endif /* nsICollation_h__ */
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