I have noticed the recover flag...

I don't think the recover option is meant to fix/ignore arbitrary garbage input. The docs say (emphasis added):

"The recover mode helps to recover documents that are almost well-formed very efficiently. That is for example a document that forgets to close the document tag (or any other tag inside the document). The recover mode of XML::LibXML has problems restoring documents that are more like well balanced chunks."

In reply to Re: repairing a broken xml using LibXML by almut
in thread repairing a broken xml using LibXML by deadpickle

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