Re: [Exist-open] Storing simple XML file doesn't work

[Michael B. <mbe...@mb...>]

Dannes Wessel wrote:

> Maybe too late, but searching this pattern "The processing instruction
> target matching
> "[xX][mM][lL]" is not allowed" on internet only gives hints regarding
> whitespaces in front of the <?xml line.

Well, as I said in an earlier off-list reply, you also get this message with
certain parsers that (wrongly) object to a BOM on utf-8 encoded files. But
it's not really relevant here anyway, since we are all agreed that the OP's
sample document is perfectly well-formed and has nothing before the XML
declaration. And if the DOCTYPE declaration is deleted, eXist accepts the
file with no problems.

This seems to indicate that recent changes, presumably those involving
enhanced validation support, are somehow causing the parser either (a)  to
see something before the XML declaration that wasn't actually there in the
original imput document -- maybe a buffer containing that document is being
corrupted while the DTD is being fetched? or (b) to attempt the parse the
XML declaration as though it was a PI (which, despite the misleadingly
identical syntax, it isn't). This can happen if the parser sees the XML
declaration twice, which again could point to some sort of buffer
corruption.

Michael Beddow