How to use the Transform?

[zblesk]

I have used the mdast-util-from-markdown for some operations and it worked well for me.

Now I'd like to change the tree before making more operations on it: specifically, I need to inspect and potentially change the hrefs of all links.

I have noticed the package does contain a Transform type; but I haven't been able to figure out how to do it.

What is the correct/intended way of doing an operation like this?

[wooorm]

plugins contain transforms. Transforms are at the unified level. See the unifiedjs/unified repo for info.

Utilities—the mdast level—do not have a particular interface. You don’t need it. Use fromMarkdown to get a tree. Then call visit from unist-util-visit to walk the tree. That’s it.

[wooorm]

if you mean this transform, you don‘t need it if you use the package, it’s for extensions.
But I’m also not sure what’s unclear about how it works?

[zblesk]

Apparently I've just been trying to use the wrong thing (the Transform class) and hadn't noticed the visitor pattern.
That explains it. Thanks!