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<pre class="synopsis"><code class="sgmltag-xmlpi"><?dbfo-need height="<em class="replaceable"><code>n</code></em>" [space-before="<em class="replaceable"><code>n</code></em>"]?></code></pre>
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<p>A “need” is a request for space on a page. If the
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requested space is not available, the page breaks and the