Standalone does not parse correctly.

[aleshaleksey]

The standalone="yes" or standalone="no" clause of the xml header (Prolog) was broken in two places.

The Prolog expected standalone: Option<String>, but Document::new expected it as Option<bool>, which means that if you write a standalone attribute(?), it will never work.

The solutions are to change either change it to Option<bool> in Prolog and adjust the parser accordingly (chosen solution), or use Option<String> in Document::new, which has the problem that things other than "yes" or "no" need to be handled.

Likewise there is a problem with with the actual:

wr!(buf, " standalone={}", if standalone { "yes" } else { "no" });

in Document::new. It produces incorrect xml without the quotations and should be:

wr!(buf, " standalone=\"{}\"", if standalone { "yes" } else { "no" });

Again, this is implemented in the fork, but you may wish to re-implement this yourself. (I unfortunately used cargo fmt on the code which seems to not have been put through the formatter...)

All the best.