1 /***************************************************************************
2 * Copyright (C) 2005-2013 by the Quassel Project *
3 * devel@quassel-irc.org *
5 * This program is free software; you can redistribute it and/or modify *
6 * it under the terms of the GNU General Public License as published by *
7 * the Free Software Foundation; either version 2 of the License, or *
8 * (at your option) version 3. *
10 * This program is distributed in the hope that it will be useful, *
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
13 * GNU General Public License for more details. *
15 * You should have received a copy of the GNU General Public License *
16 * along with this program; if not, write to the *
17 * Free Software Foundation, Inc., *
18 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. *
19 ***************************************************************************/
23 #include <QCoreApplication>
32 QString nickFromMask(QString mask)
34 return mask.section('!', 0, 0);
38 QString userFromMask(QString mask)
40 QString userhost = mask.section('!', 1);
41 if (userhost.isEmpty()) return QString();
42 return userhost.section('@', 0, 0);
46 QString hostFromMask(QString mask)
48 QString userhost = mask.section('!', 1);
49 if (userhost.isEmpty()) return QString();
50 return userhost.section('@', 1);
54 bool isChannelName(QString str)
56 return QString("#&!+").contains(str[0]);
60 QString stripFormatCodes(QString str)
62 str.remove(QRegExp("\x03(\\d\\d?(,\\d\\d?)?)?"));
73 QString stripAcceleratorMarkers(const QString &label_)
75 QString label = label_;
78 p = label.indexOf('&', p);
79 if (p < 0 || p + 1 >= label.length())
82 if (label.at(p + 1).isLetterOrNumber() || label.at(p + 1) == '&')
91 QString decodeString(const QByteArray &input, QTextCodec *codec)
93 // First, we check if it's utf8. It is very improbable to encounter a string that looks like
94 // valid utf8, but in fact is not. This means that if the input string passes as valid utf8, it
95 // is safe to assume that it is.
96 // Q_ASSERT(sizeof(const char) == sizeof(quint8)); // In God we trust...
99 for (int i = 0; i < input.size(); i++) {
101 // We check a part of a multibyte char. These need to be of the form 10yyyyyy.
102 if ((input[i] & 0xc0) != 0x80) { isUtf8 = false; break; }
106 if ((input[i] & 0x80) == 0x00) continue; // 7 bit is always ok
107 if ((input[i] & 0xf8) == 0xf0) { cnt = 3; continue; } // 4-byte char 11110xxx 10yyyyyy 10zzzzzz 10vvvvvv
108 if ((input[i] & 0xf0) == 0xe0) { cnt = 2; continue; } // 3-byte char 1110xxxx 10yyyyyy 10zzzzzz
109 if ((input[i] & 0xe0) == 0xc0) { cnt = 1; continue; } // 2-byte char 110xxxxx 10yyyyyy
110 isUtf8 = false; break; // 8 bit char, but not utf8!
112 if (isUtf8 && cnt == 0) {
113 QString s = QString::fromUtf8(input);
114 //qDebug() << "Detected utf8:" << s;
117 //QTextCodec *codec = QTextCodec::codecForName(encoding.toAscii());
118 if (!codec) return QString::fromAscii(input);
119 return codec->toUnicode(input);
123 uint editingDistance(const QString &s1, const QString &s2)
125 uint n = s1.size()+1;
126 uint m = s2.size()+1;
127 QVector<QVector<uint> > matrix(n, QVector<uint>(m, 0));
129 for (uint i = 0; i < n; i++)
132 for (uint i = 0; i < m; i++)
136 for (uint i = 1; i < n; i++) {
137 for (uint j = 1; j < m; j++) {
138 uint deleteChar = matrix[i-1][j] + 1;
139 uint insertChar = matrix[i][j-1] + 1;
141 if (deleteChar < insertChar)
146 if (s1[i-1] == s2[j-1]) {
147 uint inheritChar = matrix[i-1][j-1];
148 if (inheritChar < min)
155 return matrix[n-1][m-1];
159 QString secondsToString(int timeInSeconds)
161 QList<QPair<int, QString> > timeUnit;
162 timeUnit.append(qMakePair(365*24*60*60, QCoreApplication::translate("Quassel::secondsToString()", "year")));
163 timeUnit.append(qMakePair(24*60*60, QCoreApplication::translate("Quassel::secondsToString()", "day")));
164 timeUnit.append(qMakePair(60*60, QCoreApplication::translate("Quassel::secondsToString()", "h")));
165 timeUnit.append(qMakePair(60, QCoreApplication::translate("Quassel::secondsToString()", "min")));
166 timeUnit.append(qMakePair(1, QCoreApplication::translate("Quassel::secondsToString()", "sec")));
168 QStringList returnString;
169 for (int i = 0; i < timeUnit.size(); i++) {
170 int n = timeInSeconds / timeUnit[i].first;
172 returnString += QString("%1 %2").arg(QString::number(n), timeUnit[i].second);
174 timeInSeconds = timeInSeconds % timeUnit[i].first;
176 return returnString.join(", ");
180 QByteArray prettyDigest(const QByteArray &digest)
182 QByteArray hexDigest = digest.toHex().toUpper();
183 QByteArray prettyDigest;
184 prettyDigest.fill(':', hexDigest.count() + (hexDigest.count() / 2) - 1);
186 for (int i = 0; i * 2 < hexDigest.count(); i++) {
187 prettyDigest.replace(i * 3, 2, hexDigest.mid(i * 2, 2));