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-rw-r--r--tdefile-plugins/torrent/blist.cpp178
1 files changed, 178 insertions, 0 deletions
diff --git a/tdefile-plugins/torrent/blist.cpp b/tdefile-plugins/torrent/blist.cpp
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+++ b/tdefile-plugins/torrent/blist.cpp
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+/*
+ * Copyright (c) 2003, 2004 Michael Pyne <michael.pyne@kdemail.net>
+ *
+ * This software 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 software 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 library; see the file COPYING.
+ * If not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ */
+#include <tqiodevice.h>
+
+#include "bytetape.h"
+#include "blist.h"
+#include "bdict.h"
+#include "bstring.h"
+#include "bint.h"
+
+BList::BList (ByteTape &tape)
+ : m_valid(false), m_array()
+{
+ init (tape);
+}
+
+BList::BList (TQByteArray &dict, unsigned int start)
+ : m_valid(false), m_array()
+{
+ ByteTape tape (dict, start);
+
+ init (tape);
+}
+
+void BList::init (ByteTape &tape)
+{
+ BBase *temp;
+
+ if (*tape != 'l')
+ return;
+
+ tape++;
+
+ /* Repeat circling over the string until the list is over */
+ while (*tape != 'e')
+ {
+ switch (*tape)
+ {
+ case 'd':
+ temp = new BDict (tape);
+ break;
+
+ case 'l': /* This element is a list */
+ temp = new BList (tape);
+ break;
+
+ case 'i': /* This element is an int */
+ temp = new BInt (tape);
+ break;
+
+ default: /* Maybe a string? */
+ temp = new BString (tape);
+ }
+
+ if (!temp || !temp->isValid())
+ return; // Invalid list element
+
+ m_array.append (temp);
+ }
+
+ m_valid = true;
+
+ // Only way out is to detect 'e', so we need to increment tape past that.
+ tape++;
+}
+
+BList::~BList()
+{
+ BBaseVectorIterator iter;
+
+ for (iter = begin(); iter != end(); ++iter)
+ delete *iter;
+}
+
+BBase* BList::index (unsigned int i)
+{
+ if (i >= count())
+ return 0;
+ else
+ return m_array[i];
+}
+
+BList * BList::indexList (unsigned int i)
+{
+ BBase *base = index(i);
+
+ if (base && base->type_id() == bList)
+ return dynamic_cast<BList*>(base);
+
+ return 0;
+}
+
+BInt * BList::indexInt (unsigned int i)
+{
+ BBase *base = index(i);
+
+ if (base && base->type_id() == bInt)
+ return dynamic_cast<BInt*>(base);
+
+ return 0;
+}
+
+BDict * BList::indexDict (unsigned int i)
+{
+ BBase *base = index(i);
+
+ if (base && base->type_id() == bDict)
+ return dynamic_cast<BDict*>(base);
+
+ return 0;
+}
+
+BString * BList::indexStr (unsigned int i)
+{
+ BBase *base = index(i);
+
+ if (base && base->type_id() == bString)
+ return dynamic_cast<BString*>(base);
+
+ return 0;
+}
+
+bool BList::writeToDevice(TQIODevice &device)
+{
+ if (!m_valid)
+ return false;
+
+ const char *l_str = "l";
+ const char *e_str = "e";
+ TQ_LONG written = 0, result = 0;
+
+ written = device.writeBlock (l_str, 1);
+ while (written < 1)
+ {
+ if (written < 0 || result < 0)
+ return false;
+
+ result = device.writeBlock (l_str, 1);
+ written += result;
+ }
+
+ BBaseVectorIterator iter;
+ for (iter = begin(); iter != end(); ++iter)
+ {
+ if (!((*iter)->writeToDevice (device)))
+ return false;
+ }
+
+ written = device.writeBlock (e_str, 1);
+ while (written < 1)
+ {
+ if (written < 0 || result < 0)
+ return false;
+
+ result = device.writeBlock (e_str, 1);
+ written += result;
+ }
+
+ return true;
+}
+
+// vim: set et sw=4 ts=4: