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
133
134
135
136
137
138
139
140
|
// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#ifndef QMIMEGLOBPATTERN_P_H
#define QMIMEGLOBPATTERN_P_H
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists purely as an
// implementation detail. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//
#include <QtCore/private/qglobal_p.h>
QT_REQUIRE_CONFIG(mimetype);
#include <QtCore/qstringlist.h>
#include <QtCore/qhash.h>
QT_BEGIN_NAMESPACE
struct QMimeGlobMatchResult
{
void addMatch(const QString &mimeType, int weight, const QString &pattern, int knownSuffixLength = 0);
QStringList m_matchingMimeTypes; // only those with highest weight
QStringList m_allMatchingMimeTypes;
int m_weight = 0;
int m_matchingPatternLength = 0;
int m_knownSuffixLength = 0;
};
class QMimeGlobPattern
{
public:
static const unsigned MaxWeight = 100;
static const unsigned DefaultWeight = 50;
static const unsigned MinWeight = 1;
explicit QMimeGlobPattern(const QString &thePattern, const QString &theMimeType, unsigned theWeight = DefaultWeight, Qt::CaseSensitivity s = Qt::CaseInsensitive) :
m_pattern(s == Qt::CaseInsensitive ? thePattern.toLower() : thePattern),
m_mimeType(theMimeType),
m_weight(theWeight),
m_caseSensitivity(s),
m_patternType(detectPatternType(m_pattern))
{
}
void swap(QMimeGlobPattern &other) noexcept
{
qSwap(m_pattern, other.m_pattern);
qSwap(m_mimeType, other.m_mimeType);
qSwap(m_weight, other.m_weight);
qSwap(m_caseSensitivity, other.m_caseSensitivity);
qSwap(m_patternType, other.m_patternType);
}
bool matchFileName(const QString &inputFileName) const;
inline const QString &pattern() const { return m_pattern; }
inline unsigned weight() const { return m_weight; }
inline const QString &mimeType() const { return m_mimeType; }
inline bool isCaseSensitive() const { return m_caseSensitivity == Qt::CaseSensitive; }
private:
enum PatternType {
SuffixPattern,
PrefixPattern,
LiteralPattern,
VdrPattern, // special handling for "[0-9][0-9][0-9].vdr" pattern
AnimPattern, // special handling for "*.anim[1-9j]" pattern
OtherPattern
};
PatternType detectPatternType(const QString &pattern) const;
QString m_pattern;
QString m_mimeType;
int m_weight;
Qt::CaseSensitivity m_caseSensitivity;
PatternType m_patternType;
};
Q_DECLARE_SHARED(QMimeGlobPattern)
class QMimeGlobPatternList : public QList<QMimeGlobPattern>
{
public:
bool hasPattern(const QString &mimeType, const QString &pattern) const
{
const_iterator it = begin();
const const_iterator myend = end();
for (; it != myend; ++it)
if ((*it).pattern() == pattern && (*it).mimeType() == mimeType)
return true;
return false;
}
/*!
"noglobs" is very rare occurrence, so it's ok if it's slow
*/
void removeMimeType(const QString &mimeType)
{
auto isMimeTypeEqual = [&mimeType](const QMimeGlobPattern &pattern) {
return pattern.mimeType() == mimeType;
};
removeIf(isMimeTypeEqual);
}
void match(QMimeGlobMatchResult &result, const QString &fileName) const;
};
/*!
Result of the globs parsing, as data structures ready for efficient MIME type matching.
This contains:
1) a map of fast regular patterns (e.g. *.txt is stored as "txt" in a qhash's key)
2) a linear list of high-weight globs
3) a linear list of low-weight globs
*/
class QMimeAllGlobPatterns
{
public:
typedef QHash<QString, QStringList> PatternsMap; // MIME type -> patterns
void addGlob(const QMimeGlobPattern &glob);
void removeMimeType(const QString &mimeType);
void matchingGlobs(const QString &fileName, QMimeGlobMatchResult &result) const;
void clear();
PatternsMap m_fastPatterns; // example: "doc" -> "application/msword", "text/plain"
QMimeGlobPatternList m_highWeightGlobs;
QMimeGlobPatternList m_lowWeightGlobs; // <= 50, including the non-fast 50 patterns
};
QT_END_NAMESPACE
#endif // QMIMEGLOBPATTERN_P_H
|
