Keyboard version of $FZF_CLICK_HEADER_WORD

[fsc0]

First, thanks for the 0.59.0. 👏

I'm looking second example script in below section.
(The one feels like script named fzf-ps.)
https://junegunn.github.io/fzf/releases/0.58.0/#fzf_nth-environment-variable
This one has number prompt for each section when ctrl-n input happens.

But latest 0.59.0, click-header enhancements section example script has nice text prompt from $FZF_CLICK_HEADER_WORD.
But... we already know what itches our mind... the CLICK. 😅
https://junegunn.github.io/fzf/releases/0.59.0/#click-header-enhancements

So my question is there's way of getting (nth, more like focused) header text (and use as prompt, in this case) without using mouse click?
(Like $FZF_NTH_HEADER_WORD or $FZF_FOCUSED_HEADER_WORD? 🤔)

P.S.
Very interesting github.io page for sure.
hugo-book, right? 👍

[fsc0]

Found the way with below script.

#!/usr/bin/env bash
fzf_main_cmd()
{
	ps -ef
}
NTH_INIT="8"
export -f fzf_main_cmd

CMD_OUTPUT="$(fzf_main_cmd)"
export NTH_HEADER_LIST="$(awk 'NR==1' <<< "$CMD_OUTPUT")"
export NTH_TOTAL="$(awk '{print NF; exit}' <<< "$CMD_OUTPUT")"

fzf_get_nth_header()
{
	awk "{print \$$1}" <<< "$NTH_HEADER_LIST"
}
export -f fzf_get_nth_header

fzf_mov_nth()
{
	NTH_MOV="$1"
	NTH_NUM="$2"

	if [[ "$NTH_NUM" == '..' ]]; then
		if [[ "$NTH_MOV" == 'next' ]]; then
			NTH_NUM="0"
		elif [[ "$NTH_MOV" == 'prev' ]]; then
			NTH_NUM="$(( NTH_TOTAL + 1 ))"
		fi
	fi

	if [[ "$NTH_MOV" == 'next' ]]; then
		NTH_NUM="$(( NTH_NUM + 1 ))"
	elif [[ "$NTH_MOV" == 'prev' ]]; then
		NTH_NUM="$(( NTH_NUM - 1 ))"
	fi

	if (( NTH_NUM < 1 )) || (( NTH_NUM > NTH_TOTAL )); then
		NTH_NUM="1.."
	fi

	echo "$NTH_NUM"
}
export -f fzf_mov_nth

fzf \
	--reverse \
	--nth "$NTH_INIT" \
	--info inline \
	--header-lines 1 \
	--header-border horizontal \
	--color nth:regular,fg:dim \
	--bind 'ctrl-r:reload(fzf_main_cmd)' \
	--bind 'ctrl-n:transform-nth(fzf_mov_nth next ${FZF_NTH})' \
	--bind 'ctrl-p:transform-nth(fzf_mov_nth prev ${FZF_NTH})' \
	--bind 'result:transform-prompt:echo "$(fzf_get_nth_header ${FZF_NTH})> "' \
<<< "$CMD_OUTPUT"

UPDATE 1: add fzf_mov_nth function.
UPDATE 2: proper nth highlighting.

[fsc0]

And here's --no-input version.

#!/usr/bin/env bash
fzf_main_cmd()
{
	#ps -ef
	ps -fu $USER
}
NTH_INIT="8.."
export -f fzf_main_cmd

CMD_OUTPUT="$(fzf_main_cmd)"
export NTH_HEADER_LIST="$(awk 'NR==1' <<< "$CMD_OUTPUT")"
export NTH_TOTAL="$(awk '{print NF; exit}' <<< "$CMD_OUTPUT")"

fzf_get_nth_header()
{
	awk "{print \$$1}" <<< "$NTH_HEADER_LIST"
}
export -f fzf_get_nth_header

fzf_mov_nth()
{
	NTH_MOV="$1"
	NTH_NUM="$2"

	if [[ ! "$NTH_NUM" ]]; then
		if [[ "$NTH_MOV" == 'next' ]]; then
			NTH_NUM="0"
		elif [[ "$NTH_MOV" == 'prev' ]]; then
			NTH_NUM="$(( NTH_TOTAL + 1 ))"
		fi
	fi

	if [[ "$NTH_MOV" == 'next' ]]; then
		NTH_NUM="$(( NTH_NUM + 1 ))"
	elif [[ "$NTH_MOV" == 'prev' ]]; then
		NTH_NUM="$(( NTH_NUM - 1 ))"
	fi

	if (( NTH_NUM < 1 )) || (( NTH_NUM > NTH_TOTAL )); then
		NTH_NUM="1.."
	elif (( NTH_NUM == NTH_TOTAL )); then
		NTH_NUM+=".."
	fi

	echo "$NTH_NUM"
}
export -f fzf_mov_nth

export FZF_PS_BINDINGS="h,j,J,k,K,l,g,G,q,r,/"
fzf \
	--wrap \
	--layout reverse-list \
	--no-input \
	--nth "$NTH_INIT" \
	--info inline \
	--header-lines 1 \
	--header-border horizontal \
	--color nth:regular,fg:dim \
	--bind 'h:transform-nth(fzf_mov_nth prev ${FZF_NTH%..})+transform:
			if [[ $FZF_QUERY ]]; then
				echo "show-input+clear-query"
			fi' \
	--bind 'j:down,k:up' \
	--bind 'g:first,G:last,J:page-down,K:page-up' \
	--bind 'l:transform-nth(fzf_mov_nth next ${FZF_NTH%..})+transform:
			if [[ $FZF_QUERY ]]; then
				echo "show-input+clear-query"
			fi' \
	--bind 'q:abort' \
	--bind 'r:transform:
			echo -n "reload(fzf_main_cmd)"
			if [[ "$FZF_QUERY" ]]; then
				echo "+show-input+clear-query"
			fi' \
	--bind "/:show-input+unbind($FZF_PS_BINDINGS)" \
	--bind 'enter,esc,ctrl-c:transform:
		if [[ $FZF_INPUT_STATE = enabled ]]; then
			echo "rebind($FZF_PS_BINDINGS)+hide-input"
		elif [[ $FZF_KEY = enter ]]; then
			echo accept
		else
			echo abort
		fi' \
	--bind 'change:transform:
			if [[ ! $FZF_QUERY ]]; then
				if [[ $FZF_KEY == h ]] || [[ $FZF_KEY == l ]] || [[ $FZF_KEY == r ]]; then
					echo "rebind($FZF_PS_BINDINGS)+hide-input"
				fi
			fi' \
	--bind 'result:transform-prompt:echo "$(fzf_get_nth_header ${FZF_NTH%..})> "' \
<<< "$CMD_OUTPUT" | awk '{print $2}'