All XML modules using Syntax parser (old editor library APIs) will be migrated to lexer. See issue 122438. It will not
be a mass migration, but will be carried out in a phased manner.
This issue is a tracker for XML's syntax coloring algorithm.
The following features still use XML syntax:
* DTD formatter
* XML formatter - probably useless, a new lexer-based one is already implemente
* DTD Kit
* ENTKit, XMLKit - useless, XML lexer is available.
No DTD Lexer is available at the moment to support DTD Kit and Formatter.