How Can I colored message?

[og900aero]

I use custom rule:

cmd totalsize &{{
	lf -remote "send $id set ruler progress:selection:ind:df:lf_user_selected_size"
	s=$(du -ch $fx | tail -n 1 | cut -f 1)
	lf -remote "send $id set user_selected_size $s"
}}

How can I write in color? I think the remote send must be parameterized somehow, the only question is how?

[joelim-work]

You can include color escape sequences when setting a user variable, just change the last line to this:

lf -remote "send $id set user_selected_size \"\033[32m$s\033[0m\""

Note that the inner pair of double quotes has to be escaped, and is required otherwise \033 won't be interpreted as an escape character.

---

However the problem is that currently lf doesn't support escape sequences when displaying the ruler, you can look at #1257 (comment) for more details. We could just delete the following code, and then the ruler should display the color escape sequence properly:

lf/ui.go

Lines 811 to 812 in 2620f49

	// handle escape character so it doesn't mess up the ruler
	val = strings.ReplaceAll(val, "\033", "\033[7m\\033\033[0m")

I'm not sure what is the best thing to do in this case. I think it would be nicer if the colors could be handled inside the ruler option instead so that internal fields like ind and df could be colored too, but currently this isn't supported.

It might be better to raise this as an actual issue.

[og900aero]

Unfortunately it doesn't work. See in the photo:

Link

[joelim-work]

Yeah that's what I was referring to when I said escape sequences don't work when displaying the ruler, instead the escape character is displayed as \033 in reverse mode. If you delete that bit of code and then recompile lf then it should work.

So the reasons for displaying escape sequences instead of processing them was:

1. To be able to display the literal values of options like promptfmt in the ruler
2. Security reasons (?)

Even now, I'm not sure about that decision.

[og900aero]

All right. So until I know for sure if this will be supported or not, I won't use it.

[joelim-work]

Well if it interests you, I wrote up an idea for implementing a new rulerfmt option, see #1358 for details.

It's just a proof-of-concept though, so don't get too excited.

[og900aero]

Okay, thx.