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</dt>
<dt><u>Function:</u> <b>read_list</b><i> (<var>S</var>, <var>L</var>, <var>separator_flag</var>)</i>
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</dt>
<dd><p><code>read_list(<var>S</var>)</code> reads the source <var>S</var> and returns its entire content as a flat list.
</p>
<p><code>read_list(<var>S</var>, <var>L</var>)</code> reads the source <var>S</var> into the list <var>L</var>,
until <var>L</var> is full or the source is exhausted.
</p>
<p>The source <var>S</var> may be a file name or a stre