DTD Features
June 9, 2021 ยท View on GitHub
CodeLens Support
CodeLens is supported for .dtd files, which can show where an element declaration is referenced.

This feature also supports listing and highlighting the number of references to an element declaration and the line(s) referenced on.

Read more
See CodeLens for more details.
Category Accessibility
After defining an !ELEMENT tag in the .dtd file, there are features available for categories.
Jump to element declaration
For an !ELEMENT tag that contains a category/element-content attribute, there is support for navigating to its definition element.

Syntax Validation
DTD syntax validation is enabled for any .dtd file.
