XML conundrum

(A conversation snippet from the hogfish.net archives, circa 2007)

Trish says:
aw man

Trish says:
/me tries to remember what the file made yesterday was called

Trish says:
/me sifts through files called things like jam.xml, ponymeat.xml, pork.xml, raisins.xml, great.xml, jelly.xml

Trish says:
oh scone.xml

Trish says:
it’s all so obvious now

Dewi says:
/me laughs

Dewi says:
I hope you’ve got test cases to ensure they are always well-formed and conformant to their schemas!