private static String getMetaValue(Source source, String key) {
for (int pos = 0; pos < source.length(); ) {
StartTag startTag = source.getNextStartTag(pos, "name", key, false);
if (startTag == null) return null;
if (startTag.getName() == HTMLElementName.META)
return startTag.getAttributeValue("content"); // Attribute values are automatically decoded
pos = startTag.getEnd();
}
return null;
}