PyGTK save from textmarks

def textConvertTo(self, pos=0):
    def apply_tag(self):
        iter = self.tmpBuffer.get_iter_at_mark(self.beginMark)
        if iter.begins_tag(self.boldTag) and not self.boldLock:
            self.tmpBuffer.insert(iter, '[b]')
            self.boldLock = True
        iter = self.tmpBuffer.get_iter_at_mark(self.beginMark)
        if iter.begins_tag(self.italTag) and not self.italLock:
            self.tmpBuffer.insert(iter, '[i]')
            self.italLock = True
        iter = self.tmpBuffer.get_iter_at_mark(self.beginMark)
        if iter.begins_tag(self.undlTag) and not self.undlLock:
            self.tmpBuffer.insert(iter, '[u]')
            self.undlLock = True
        iter = self.tmpBuffer.get_iter_at_mark(self.endMark)
        if iter.ends_tag(self.boldTag) and self.boldLock:
            self.tmpBuffer.insert(iter, '[/b]')
            self.boldLock = False
        iter = self.tmpBuffer.get_iter_at_mark(self.endMark)
        if iter.ends_tag(self.italTag) and self.italLock:
            self.tmpBuffer.insert(iter, '[/i]')
            self.italLock = False
        iter = self.tmpBuffer.get_iter_at_mark(self.endMark)
        if iter.ends_tag(self.undlTag) and self.undlLock:
            self.tmpBuffer.insert(iter, '[/u]')
            self.undlLock = False
    self.tmpBuffer = gtk.TextBuffer(self.textTags)
    deserialization = self.tmpBuffer.register_deserialize_tagset()
    self.tmpBuffer.deserialize(self.tmpBuffer, deserialization, self.tmpBuffer.get_start_iter(), self.textBuffer.serialize(self.textBuffer, "application/x-gtk-text-buffer-rich-text", self.textBuffer.get_start_iter(), self.textBuffer.get_end_iter()))
    self.boldLock = False
    self.italLock = False
    self.undlLock = False
    self.beginMark = self.tmpBuffer.create_mark(None, self.tmpBuffer.get_start_iter(), False)
    self.endMark = self.tmpBuffer.create_mark(None, self.tmpBuffer.get_start_iter(), True)
    apply_tag(self)
    tmpIter = self.tmpBuffer.get_iter_at_mark(self.beginMark)
    tmpVar = tmpIter.forward_to_tag_toggle(None)
    while tmpVar:
        self.beginMark = self.tmpBuffer.create_mark(None, tmpIter, False)
        self.endMark = self.tmpBuffer.create_mark(None, tmpIter, True)
        apply_tag(self)
        tmpIter = self.tmpBuffer.get_iter_at_mark(self.endMark)
        tmpVar = tmpIter.forward_to_tag_toggle(None)
        print 'And again...'
    text = self.tmpBuffer.get_text(self.tmpBuffer.get_start_iter(), self.tmpBuffer.get_end_iter())
    del(self.beginMark, self.endMark, self.boldLock, self.italLock, self.undlLock, self.tmpBuffer)
    return text