chromium/third_party/icu/source/i18n/collationsets.h

// © 2016 and later: Unicode, Inc. and others.
// License & terms of use: http://www.unicode.org/copyright.html
/*
*******************************************************************************
* Copyright (C) 2013-2014, International Business Machines
* Corporation and others.  All Rights Reserved.
*******************************************************************************
* collationsets.h
*
* created on: 2013feb09
* created by: Markus W. Scherer
*/

#ifndef __COLLATIONSETS_H__
#define __COLLATIONSETS_H__

#include "unicode/utypes.h"

#if !UCONFIG_NO_COLLATION

#include "unicode/uniset.h"
#include "collation.h"

U_NAMESPACE_BEGIN

struct CollationData;

/**
 * Finds the set of characters and strings that sort differently in the tailoring
 * from the base data.
 *
 * Every mapping in the tailoring needs to be compared to the base,
 * because some mappings are copied for optimization, and
 * all contractions for a character are copied if any contractions for that character
 * are added, modified or removed.
 *
 * It might be simpler to re-parse the rule string, but:
 * - That would require duplicating some of the from-rules builder code.
 * - That would make the runtime code depend on the builder.
 * - That would only work if we have the rule string, and we allow users to
 *   omit the rule string from data files.
 */
class TailoredSet : public UMemory { … };

class ContractionsAndExpansions : public UMemory { … };

U_NAMESPACE_END

#endif  // !UCONFIG_NO_COLLATION
#endif  // __COLLATIONSETS_H__