How to change a line of tags to a list of tags in yaml?

[francisHugo]

I have already had a bunch of notes with tags in yaml in a line, such as

---
tags: tag1 tag2 tag3 ...
---

what I would like to do, whether can change these tags in to a list, like this:

---
tags:
  - tag1
  - tag2
  - tag3
  - ...
---

may a template do this?

I had try the linter plugin, with several possible settings I guessed, none of them works. So, I think maybe template can handle it.

thanks for helps.

[Zachatoo]

Something like this should work

<%*
const file = tp.file.find_tfile(tp.file.path(true));
await app.fileManager.processFrontMatter(file, (frontmatter) => {
  frontmatter.tags = frontmatter.tags.split(" ");
});
-%>

If you're interested in running this on all your notes at once, you may be interested in this script
https://zachyoung.dev/posts/templater-snippets#run-obsidian-frontmatter-formatter-on-every-file

[cdongt]

1. You can use a plugin: Linter, which can easily implement this functionality.
2. Or convert multi-line input to a list:

---
Tags:
<%*
let multiLineInput = await tp.system.prompt("Please input the tags", "", true, true);
let lines = multiLineInput.split("\n"); // Split multi-line text into an array.
lines.forEach(line => {
    if (line.trim() !== "") {
        tR += `- ${line}\n`; // Each line is preceded by a list symbol.
    }
});
%>
---

Here's how it works when you create a new file using this template:

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