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<a name="parser-guess"></a>Guess parser (name <code class="literal">guess</code>)</h2></div></div></div>
<p>
This is a special parser that picks the actual parser to use based
on the content type, the content bytes or the content identifier. The
content name can be either from a local file or from a URI.
</p>
<p>If the protocol that delivered the content (such as HTTP)
provided a <span class="emphasis"><em>Content Type</em></span> (aka MIME Type) then
this will be the primary means for identifying th ecotnent.
</p>
<p>The secondary means to identify the content are the bytes of
the content (if available), otherwise the content identifier is used,
which is the least reliable.
</p>
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