comment.Printer.DocLinkURL isn't being called

[will....@gmail.com]

I'm trying to print the Markdown for package documentation using the new go/doc/comment package. It seems like I have everything set up correctly to customize the doc link URLs, but the comment.Printer.DocLinkURL callback isn't being called:

https://go.dev/play/p/7irKc6dTRRw

The comment.Printer.HeadingID and HeadingLevel settings are working just fine.

Am I missing something?

[Sean Liao]

your parsing setup is missing the lookup to identify which things are actually linkable symbols

https://go.dev/play/p/sDtGA_JJZdz

- sean

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[will....@gmail.com]

Thanks, that was it!

[will....@gmail.com]

The documentation for comment.Parser.LookupSym is unclear. When would you ever not return true?

Looking at Parser more, it isn't clear how you'd implement comment.Parser.LookupPackage in a general way. Has that been done somewhere?

I don't see a way to disable links to declarations entirely, so `[MyType]` doc syntax is rendered in Markdown as just `MyType` instead of `\[MyType]`. Is there a way to do that?