vim/gen_conceal.awk

#!/usr/bin/awk -f

BEGIN {
	c = "\""

	print c " Conceal character file generated by awk."
	print c " Do not edit this manually."
}

{
	# Ignore all whitespace
	gsub("\\s", "", $0)

	# Skip comments
	if (substr($0,0,1) == "#") { next }
	# Skip blank lines
	if (NF <= 0) { next }

	# Extract args
	p = index($0, "|")
	conceal = substr($0,0,p-1)
	string = substr($0,p+1)

	# Vim config output
	print ":syntax match keyword \"\\<" string "\\>\" conceal cchar=" conceal

}