Possible to check anchors?

[kamulos]

Is it possible to check anchors for links inside the mdbook? I want to link to specific sections in my book, but the anchor names just depend on the heading name. It would really give me peace of mind if this could be checked automatically.

[mhvelplund]

I wish this renderer did it, but in the meantime I've used https://github.com/untitaker/hyperlink

[eholk]

A partial improvement would be for links like foo.md#my-section, just check that foo.md exists, without necessarily validating the anchor. Validating the anchor would be even better, but that's probably harder.

[dae]

@rumovz patched in support for local anchor checking - you can find it here: https://github.com/ankitects/mdbook-linkcheck/commits/anchors

It required adding a dependency on mdbook to the linkcheck crate, so may be difficult to contribute back upstream.