1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2 /*
3  * This file is part of the LibreOffice project.
4  *
5  * This Source Code Form is subject to the terms of the Mozilla Public
6  * License, v. 2.0. If a copy of the MPL was not distributed with this
7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
8  */
9 
10 #ifndef INCLUDED_SVL_SHAREDSTRINGPOOL_HXX
11 #define INCLUDED_SVL_SHAREDSTRINGPOOL_HXX
12 
13 #include <svl/svldllapi.h>
14 #include <rtl/ustring.hxx>
15 #include <memory>
16 
17 class CharClass;
18 
19 namespace svl
20 {
21 class SharedString;
22 
23 /**
24  * Storage for pool of shared strings.  It also provides mapping from
25  * original-cased strings to upper-cased strings for case insensitive
26  * operations.
27  */
28 class SVL_DLLPUBLIC SharedStringPool
29 {
30     struct Impl;
31     std::unique_ptr<Impl> mpImpl;
32 
33     SharedStringPool(const SharedStringPool&) = delete;
34     SharedStringPool& operator=(const SharedStringPool&) = delete;
35 
36 public:
37     SharedStringPool(const CharClass& rCharClass);
38     ~SharedStringPool();
39 
40     /**
41      * Intern a string object into the shared string pool.
42      *
43      * @param rStr string object to intern.
44      *
45      * @return a pointer to the string object stored inside the pool, or NULL
46      *         if the insertion fails.
47      */
48     SharedString intern(const OUString& rStr);
49 
50     /**
51      * Go through all string objects in the pool, and clear those that are no
52      * longer used outside of the pool.
53      */
54     void purge();
55 
56     size_t getCount() const;
57 
58     size_t getCountIgnoreCase() const;
59 };
60 }
61 
62 #endif
63 
64 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
65