Bug#856123: pandoc: Convert markdown to bad docbook for non-ascii titles

Sat Feb 25 12:09:24 UTC 2017

I'd say it's a dblatex problem.  DocBook 4.2 spec says

> ID is an identifying string for the element. It must be
> unique at least within the document and must begin with a
> letter.

Nothing said here about a limitation to ASCII.  And here the
XML file clearly indicates that the encoding is UTF-8.
In addition, `xmlstarlet val` says that the XML file is valid.

Pandoc has an `--ascii` option to force ASCII output, but
currently it only works for HTML output, not DocBook. This
could be changed, but please submit an enhancement request
to pandoc's own upstream bug tracker,
https://github.com/jgm/pandoc/issues, rather than here.