en.SH.PP.RU

<Params>

Returns refal program parameters in form (program file)(arg1)(arg2)(arg3)... each parameter is enclosed in parentheses.

<Prout e.xp>

Writes an expression to standard output. Compound symbols and parentheses are ignored. It always returns empty expression.

Unlike in REFAL-5, it doesn't break the line. You need to pass '\n' on your own.

<Card>

Reads one line from standard input with terminating '\n'. If EOF or an error is encoutered, it returns empty expression.