How do you get the text of a link?

[MEHColeman]

Motivation: I'm trying to create a template for a Map of Content.
I want to create a list of notes that link to a topic. Say, the topic is 'PopOS' and I may or may not have an existing page at Knowledge/PopOS
My MOC will be created in my MOC folder and will have the same name, so MOC/PopOS.

So, I want to find all the notes that have a link to [[PopOS]]. But... that is not a link to the MOC page that the dataview table is being created in. It's either a link to a page that doesn't exist, or a link to another page with the same filename.

So, I want to find links where the text of the link is "PopOS".

Doing some debugging, I can see that
= string(this.file.link) doesn't return "PopOS", it returns "[[PopOS]]"

I'm looking for a way of getting just the text of the link.

I tried further experimenting with substring. With a note with some test links in it:

[[Proxmox]]
[[Pry]]
[[PopOS]]
[Ceph](Ceph)

= map(this.file.outlinks, (x) => substring(string(x),2))
would get you
MOCs/Proxmox.md|Proxmox]], Knowledge/Pry.md|Pry]], PopOS|PopOS]], MOCs/Ceph.md|Ceph]]

It seems that you could strip off the [ s. I'm not sure how to strip off the ]s at the other end without knowing the length of the string.

However the format of the string seems to rely on the format of the original link or whether the outgoing link points to a page that already exists or not. So, sometimes, the link is represented in the format [[Knowledge/PopOS.md|PopOS]], sometimes [[PopOS|PopOS]], and for reasons I haven't worked out, sometimes it's [[PopOS]]
Basically, I'm just looking for a way to extract the string "PopOS"...

[AB1908]

Look at the meta() functions in the docs. meta(field).path should give you what you need. Note that this may change in the near future.

[MEHColeman]

Thank you! This helped a lot!
I checked with:
= this.file.name
#=> Blog

=meta(this.file.link).path
#=> MOCs/Blog.md

So, the path contains the filename section I need, and it seems to do that pretty consistently.

I did a few more tests with a selection of different links:
Some outlinks:

[[Proxmox]]
[[Pry]]
[[PopOS]]
[Ceph](Ceph)
[[Ruby's Self|self]]

= map(this.file.outlinks, (x) => meta(x).path)
#=> MOCs/Proxmox.md, Knowledge/Pry.md, PopOS, MOCs/Ceph.md, Knowledge/Ruby's Self.md

So, if the file doesn't exist, you just get a filename without the full path, or a file extension.

I checked the display property too, but there is nothing useful there. It didn't work with an explictlyly named link (I expected [[Ruby's Self|self]] to show self, but it just returned -). I'm not sure why, maybe something to do with how the data is structured as an array in the .outlinks method.

= map(this.file.outlinks, (x) => meta(x).display)
#=> -, -, -, -, -

I double checked with
= meta([[Ruby's Self|self]]).display
#=> self

Which seemed to work just fine.

Finally, I wrote a regexreplace method to strip away the root path and extension, if there. This seems to get me what I need:

= map(this.file.outlinks, (x) => regexreplace(meta(x).path, "^(?:.*\/)?([\w\'\s]*)(?:(\.md))?", "$1"))
#=> Proxmox, Pry, PopOS, Ceph, Ruby's Self

so my final dataview query is:

TABLE 
	date AS "Created",
	publish_date AS "Publish Date",
	file.mtime AS "Updated",
	file.outlinks
FROM "Knowledge" OR "MOCs" OR "Inbox"
SORT publish_date
WHERE contains(
  map(
    map(file.outlinks, (x) => regexreplace(meta(x).path, "^(?:.*\/)?([\w\'\s]*)(?:(\.md))?", "$1")),
    (y) => y=this.file.name
  )
  ,true)

[AB1908]

Glad you got it working!

[blacksmithgu]

Hmm, I really need to add intermediate variables to make nesting easier...