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
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
|
/******************************************************************************
* Copyright (C) 2018 Kitsune Ral <kitsune-ral@users.sf.net>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "util.h"
#include <QtCore/QRegularExpression>
#include <QtCore/QStandardPaths>
#include <QtCore/QDir>
#include <QtCore/QStringBuilder>
static const auto RegExpOptions =
QRegularExpression::CaseInsensitiveOption
| QRegularExpression::OptimizeOnFirstUsageOption
| QRegularExpression::UseUnicodePropertiesOption;
// Converts all that looks like a URL into HTML links
static void linkifyUrls(QString& htmlEscapedText)
{
// regexp is originally taken from Konsole (https://github.com/KDE/konsole)
// full url:
// protocolname:// or www. followed by anything other than whitespaces,
// <, >, ' or ", and ends before whitespaces, <, >, ', ", ], !, ), :,
// comma or dot
// Note: outer parentheses are a part of C++ raw string delimiters, not of
// the regex (see http://en.cppreference.com/w/cpp/language/string_literal).
// Note2: the next-outer parentheses are \N in the replacement.
static const QRegularExpression FullUrlRegExp(QStringLiteral(
R"(\b((www\.(?!\.)(?!(\w|\.|-)+@)|(https?|ftp|magnet)://)(&(?![lg]t;)|[^&\s<>'"])+(&(?![lg]t;)|[^&!,.\s<>'"\]):])))"
), RegExpOptions);
// email address:
// [word chars, dots or dashes]@[word chars, dots or dashes].[word chars]
static const QRegularExpression EmailAddressRegExp(QStringLiteral(
R"(\b(mailto:)?((\w|\.|-)+@(\w|\.|-)+\.\w+\b))"
), RegExpOptions);
// An interim liberal implementation of
// https://matrix.org/docs/spec/appendices.html#identifier-grammar
static const QRegularExpression MxIdRegExp(QStringLiteral(
R"((^|[^<>/])([!#@][-a-z0-9_=/.]{1,252}:[-.a-z0-9]+))"
), RegExpOptions);
// NOTE: htmlEscapedText is already HTML-escaped! No literal <,>,&,"
htmlEscapedText.replace(EmailAddressRegExp,
QStringLiteral(R"(<a href="mailto:\2">\1\2</a>)"));
htmlEscapedText.replace(FullUrlRegExp,
QStringLiteral(R"(<a href="\1">\1</a>)"));
htmlEscapedText.replace(MxIdRegExp,
QStringLiteral(R"(\1<a href="https://matrix.to/#/\2">\2</a>)"));
}
QString QMatrixClient::sanitized(const QString& plainText)
{
auto text = plainText;
text.remove(QChar(0x202e));
text.remove(QChar(0x202d));
return text;
}
QString QMatrixClient::prettyPrint(const QString& plainText)
{
auto pt = QStringLiteral("<span style='white-space:pre-wrap'>") +
plainText.toHtmlEscaped() + QStringLiteral("</span>");
pt.replace('\n', QStringLiteral("<br/>"));
linkifyUrls(pt);
return pt;
}
QString QMatrixClient::cacheLocation(const QString& dirName)
{
const QString cachePath =
QStandardPaths::writableLocation(QStandardPaths::CacheLocation)
% '/' % dirName % '/';
QDir dir;
if (!dir.exists(cachePath))
dir.mkpath(cachePath);
return cachePath;
}
// Tests for function_traits<>
#ifdef Q_CC_CLANG
#pragma clang diagnostic push
#pragma ide diagnostic ignored "OCSimplifyInspection"
#endif
using namespace QMatrixClient;
int f();
static_assert(std::is_same<fn_return_t<decltype(f)>, int>::value,
"Test fn_return_t<>");
void f1(int);
static_assert(function_traits<decltype(f1)>::arg_number == 1,
"Test fn_arg_number");
void f2(int, QString);
static_assert(std::is_same<fn_arg_t<decltype(f2), 1>, QString>::value,
"Test fn_arg_t<>");
struct S { int mf(); };
static_assert(is_callable_v<decltype(&S::mf)>, "Test member function");
static_assert(returns<int, decltype(&S::mf)>(), "Test returns<> with member function");
struct Fo { int operator()(); };
static_assert(is_callable_v<Fo>, "Test is_callable<> with function object");
static_assert(function_traits<Fo>::arg_number == 0, "Test function object");
static_assert(std::is_same<fn_return_t<Fo>, int>::value,
"Test return type of function object");
struct Fo1 { void operator()(int); };
static_assert(function_traits<Fo1>::arg_number == 1, "Test function object 1");
static_assert(is_callable_v<Fo1>, "Test is_callable<> with function object 1");
static_assert(std::is_same<fn_arg_t<Fo1>, int>(),
"Test fn_arg_t defaulting to first argument");
#if (!defined(_MSC_VER) || _MSC_VER >= 1910)
static auto l = [] { return 1; };
static_assert(is_callable_v<decltype(l)>, "Test is_callable_v<> with lambda");
static_assert(std::is_same<fn_return_t<decltype(l)>, int>::value,
"Test fn_return_t<> with lambda");
#endif
template <typename T>
struct fn_object
{
static int smf(double) { return 0; }
};
template <>
struct fn_object<QString>
{
void operator()(QString);
};
static_assert(is_callable_v<fn_object<QString>>, "Test function object");
static_assert(returns<void, fn_object<QString>>(),
"Test returns<> with function object");
static_assert(!is_callable_v<fn_object<int>>, "Test non-function object");
// FIXME: These two don't work
//static_assert(is_callable_v<decltype(&fn_object<int>::smf)>,
// "Test static member function");
//static_assert(returns<int, decltype(&fn_object<int>::smf)>(),
// "Test returns<> with static member function");
template <typename T>
QString ft(T&&) { return {}; }
static_assert(std::is_same<fn_arg_t<decltype(ft<QString>)>, QString&&>(),
"Test function templates");
#ifdef Q_CC_CLANG
#pragma clang diagnostic pop
#endif
|
