Move ByteArray utils into Utils::ByteArray namespace

src/base/utils/bytearray.cpp

@@ -0,0 +1,65 @@
+/*
+ * Bittorrent Client using Qt and libtorrent.
+ * Copyright (C) 2018  Mike Tzou (Chocobo1)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ *
+ * In addition, as a special exception, the copyright holders give permission to
+ * link this program with the OpenSSL project's "OpenSSL" library (or with
+ * modified versions of it that use the same license as the "OpenSSL" library),
+ * and distribute the linked executables. You must obey the GNU General Public
+ * License in all respects for all of the code used other than "OpenSSL".  If you
+ * modify file(s), you may extend this exception to your version of the file(s),
+ * but you are not obligated to do so. If you do not wish to do so, delete this
+ * exception statement from your version.
+ */
+
+#include "bytearray.h"
+#include <QList>
+
+QList<QByteArray> Utils::ByteArray::splitToViews(const QByteArray &in, const QByteArray &sep, const QString::SplitBehavior behavior)
+{
+    if (sep.isEmpty())
+        return {in};
+
+    QList<QByteArray> ret;
+
+    int head = 0;
+    while (head < in.size()) {
+        int end = in.indexOf(sep, head);
+        if (end < 0)
+            end = in.size();
+
+        // omit empty parts
+        const QByteArray part = QByteArray::fromRawData((in.constData() + head), (end - head));
+        if (!part.isEmpty() || (behavior == QString::KeepEmptyParts))
+            ret += part;
+
+        head = end + sep.size();
+    }
+
+    return ret;
+}
+
+const QByteArray Utils::ByteArray::midView(const QByteArray &in, const int pos, const int len)
+{
+    if ((pos < 0) || (pos >= in.size()) || (len == 0))
+        return {};
+
+    const int validLen = ((len < 0) || (pos + len) >= in.size())
+            ? in.size() - pos
+            : len;
+    return QByteArray::fromRawData(in.constData() + pos, validLen);
+}