// Instances a single text element containing a string.
bool Factory::InstanceElementText(Element* parent, const String& text)
{
SystemInterface* system_interface = GetSystemInterface();
// Do any necessary translation. If any substitutions were made then new XML may have been introduced, so we'll
// have to run the data through the XML parser again.
String translated_data;
if (system_interface != NULL &&
(system_interface->TranslateString(translated_data, text) > 0 ||
translated_data.Find("<") != String::npos))
{
StreamMemory* stream = new StreamMemory(translated_data.Length() + 32);
stream->Write("<body>", 6);
stream->Write(translated_data);
stream->Write("</body>", 7);
stream->Seek(0, SEEK_SET);
InstanceElementStream(parent, stream);
stream->RemoveReference();
}
else
{
// Check if this text node contains only white-space; if so, we don't want to construct it.
bool only_white_space = true;
for (size_t i = 0; i < translated_data.Length(); ++i)
{
if (!StringUtilities::IsWhitespace(translated_data[i]))
{
only_white_space = false;
break;
}
}
if (only_white_space)
return true;
// Attempt to instance the element.
XMLAttributes attributes;
Element* element = Factory::InstanceElement(parent, "#text", "#text", attributes);
if (!element)
{
Log::Message(Log::LT_ERROR, "Failed to instance text element '%s', instancer returned NULL.", translated_data.CString());
return false;
}
// Assign the element its text value.
ElementText* text_element = dynamic_cast< ElementText* >(element);
if (text_element == NULL)
{
Log::Message(Log::LT_ERROR, "Failed to instance text element '%s'. Found type '%s', was expecting a derivative of ElementText.", translated_data.CString(), typeid(element).name());
element->RemoveReference();
return false;
}
text_element->SetText(translated_data);
// Add to active node.
parent->AppendChild(element);
element->RemoveReference();
}
return true;
}
