Ansi color in preview mode

[davixcky]

Describe the bug

I want to display text with Ansi colors (provided by github.com/logrusorgru/aurora). It's not possible, or it's not make sense?

To reproduce

	projects, err := hbtn.GetProjects()
		if err != nil {
			log.Fatal(err)
		}

		idx, err := fuzzyfinder.FindMulti(
			projects,
			func(i int) string {
				return projects[i].Title
			},
			fuzzyfinder.WithPreviewWindow(func(i, w, h int) string {
				if i == -1 {
					return ""
				}

				return fmt.Sprintf("Track: %s (%s)\nAlbum: %s",
					Green(projects[i].Title),
					projects[i].Tasks,
					projects[i].ID)
			}))
		if err != nil {
			log.Fatal(err)
		}
		fmt.Printf("selected: %v\n", idx)

Expected behavior

Screenshots

Environment

• OS: Arch linux
• Terminal: Tilix
• go-fuzzyfinder version: Latest

Additional context

[ktr0731]

@davixcky
I think it makes sense that providing ANSI color, and it's possible.
Actually, fzf's preview window can display ANSI color-enabled text.

[RyanGreenup]

This would be a nice feature, what would be needed to get this working?

[ktr0731]

@RyanGreenup
Hi, I'm sorry for the late reply.
Currently, go-fuzzyfinder can't interpret the ANSI escape code for the string returned from WithPreviewWindow. So, we need to implement it.

[RyanGreenup]

So, we need to implement it.

I'm not a programmer by trade but I am trying to learn Go. If I manage to get some free time I'll look at trying it, I think this would be really handy and would work really well with Glow.

---

[danielfoehrKn]

That would be really nice to have, both for the main search window as well for the preview window.

[ktr0731]

This is now partially supported, but we are going to not publish a new version until the rest of the ANSI color codes will be implemented.

[ktr0731]

This is now fully supported by go-fuzzyfinder v0.7.0. Please try it out!