/usr/share/doc/ruby-erubis/examples/pi/example.escheme is in ruby-erubis 2.7.0-3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 | <?scheme
(let ((user "Erubis")
(items '("<aaa>" "b&b" "\"ccc\""))
(i 0))
?>
<p>Hello @!{user}@!</p>
<table>
<tbody>
<?scheme
(for-each
(lambda (item)
(set! i (+ i 1))
?>
<tr bgcolor="@!{(if (= (modulo i 2) 0) "#FFCCCC" "#CCCCFF")}@">
<td>@!{i}@</td>
<td>@!{item}@</td>
</tr>
<?scheme
) ; lambda end
items) ; for-each end
?>
</tbody>
</table>
<?scheme
) ; let end
?>
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