#!/bin/sh

template="$1"
test -n "$template" || exit 1

title="${title:-Untitled}"
yaxis="${yaxis:-Y-Axis}"
output="${output:-out.svg}"
input="${input:-in.dat}"

cat "$template" \
	| sed -r '
		s@%%TITLE%%@'"$title"'@ ;
		s@%%YAXIS%%@'"$yaxis"'@ ;
		s@%%OUTPUT%%@'"$output"'@ ;
		s@%%INPUT%%@'"$input"'@ ;
		' \
	| env DISPLAY='' gnuplot