summaryrefslogtreecommitdiff
path: root/svl/source/misc/lngmisc.cxx
blob: 4224a14429a58b544e806e9922ba9b1ac89bd0a7 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
 * This file is part of the LibreOffice project.
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 *
 * This file incorporates work covered by the following license notice:
 *
 *   Licensed to the Apache Software Foundation (ASF) under one or more
 *   contributor license agreements. See the NOTICE file distributed
 *   with this work for additional information regarding copyright
 *   ownership. The ASF licenses this file to you under the Apache
 *   License, Version 2.0 (the "License"); you may not use this file
 *   except in compliance with the License. You may obtain a copy of
 *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
 */


#include <svl/lngmisc.hxx>

#include <comphelper/string.hxx>
#include <rtl/ustrbuf.hxx>
#include <tools/debug.hxx>

namespace linguistic
{
    sal_Int32 GetNumControlChars(const OUString &rTxt)
    {
        sal_Int32 nCnt = 0;
        for (sal_Int32 i = 0; i < rTxt.getLength(); ++i)
            if (IsControlChar(rTxt[i]))
                ++nCnt;
        return nCnt;
    }

    bool RemoveHyphens(OUString &rTxt)
    {
        sal_Int32 n = rTxt.getLength();
        rTxt = rTxt.replaceAll(OUStringChar(SVT_SOFT_HYPHEN), "");
        rTxt = rTxt.replaceAll(OUStringChar(SVT_HARD_HYPHEN), "");
        return n != rTxt.getLength();
    }

    bool RemoveControlChars(OUString &rTxt)
    {
        sal_Int32 nSize = rTxt.getLength() - GetNumControlChars(rTxt);
        if(nSize == rTxt.getLength())
            return false;

        OUStringBuffer aBuf(nSize);
        aBuf.setLength(nSize);
        for (sal_Int32 i = 0, j = 0; i < rTxt.getLength() && j < nSize; ++i)
            if (!IsControlChar(rTxt[i]))
                aBuf[j++] = rTxt[i];

        rTxt = aBuf.makeStringAndClear();
        DBG_ASSERT(rTxt.getLength() == nSize, "GetNumControlChars returned a different number of control characters than were actually removed.");

        return true;
    }

    bool ReplaceControlChars(OUString &rTxt)
    {
        // non breaking field character
        static const char CH_TXTATR_INWORD = static_cast<char>(0x02);

        // the resulting string looks like this:
        // 1. non breaking field characters get removed
        // 2. remaining control characters will be replaced by ' '

        if (GetNumControlChars(rTxt) == 0)
            return false;

        sal_Int32 n = rTxt.getLength();

        OUStringBuffer aBuf(n);
        aBuf.setLength(n);

        sal_Int32 j = 0;
        for (sal_Int32 i = 0; i < n && j < n; ++i)
        {
            if (CH_TXTATR_INWORD == rTxt[i])
                continue;

            aBuf[j++] = IsControlChar(rTxt[i]) ? ' ' : rTxt[i];
        }

        aBuf.setLength(j);
        rTxt = aBuf.makeStringAndClear();

        return true;
    }

    OUString GetThesaurusReplaceText(const OUString &rText)
    {
        // The strings for synonyms returned by the thesaurus sometimes have some
        // explanation text put in between '(' and ')' or a trailing '*'.
        // These parts should not be put in the ReplaceEdit Text that may get
        // inserted into the document. Thus we strip them from the text.

        OUString aText(rText);

        sal_Int32 nPos = aText.indexOf('(');
        while (nPos >= 0)
        {
            sal_Int32 nEnd = aText.indexOf(')', nPos);
            if (nEnd >= 0)
            {
                OUStringBuffer aTextBuf(aText);
                aTextBuf.remove(nPos, nEnd - nPos + 1);
                aText = aTextBuf.makeStringAndClear();
            }
            else
                break;
            nPos = aText.indexOf('(');
        }

        nPos = aText.indexOf('*');
        if(nPos == 0)
            return OUString();
        else if(nPos > 0)
            aText = aText.copy(0, nPos);

        // remove any possible remaining ' ' that may confuse the thesaurus
        // when it gets called with the text
        return comphelper::string::strip(aText, ' ');
    }
} // namespace linguistic

/* vim:set shiftwidth=4 softtabstop=4 expandtab: */