Re: [xsl] suggestion for an xml editor, please?

["Peter Flynn peter@xxxxxxxxxxx" <xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx>]

On 17/08/2022 12:51, Trevor Nicholls trevor@xxxxxxxxxxxxxxxxxx wrote:
> I use emacs with an xml mode enabled, but this only assists me with 
> syntax errors (unterminated elements, etc) and not semantic errors 
> (document doesn't conform to its declared schema). Is there an emacs 
> package which can do both?

There is an xml-mode provided by nxml which apears to be more for "data" 
XML than a "document" authoring mode. AFAIK it requires an RNG grammar, 
not a DTD or W3C Schema.

The original psgml-mode has its own xml-mode  which offers almost all of 
the editing functions associated with an authoring editor, and it uses 
DTDs, not RNG or a W3C Schema.

Unfortunately, it turns out that a recent "update" to nxml's xml-mode 
stomped all over the features which allowed psgml-mode to operate its 
xml-mode, which was a very unfriendly, if not hostile, act.

I was able to get psgml's original xml-mode to work by installing psgml 
from the repos, and then loading the (otherwise obsolete) sgml-mode 
first (eg open an XML document and type M-x sgml-mode RET) and THEN 
invoke M-x xml-mode RET.

It would be nice if someone could undo whatever is currently blocking 
psgml from operating. nxml is excellent but it is not useful as an 
authoring editor.

Peter