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<?xml version="1.0" encoding="ascii"?>
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<a href="pyxb-module.html">Package pyxb</a> ::
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<a href="pyxb.utils.fac-module.html">Module fac</a> ::
Class MultiConfiguration
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<!-- ==================== TYPE DESCRIPTION ==================== -->
<h1 class="epydoc">type MultiConfiguration</h1><p class="nomargin-top"><span class="codelink"><a href="pyxb.utils.fac-pysrc.html#MultiConfiguration">source code</a></span></p>
<pre class="base-tree">
object --+
|
<a href="pyxb.utils.fac.Configuration_ABC-class.html">Configuration_ABC</a> --+
|
<strong class="uidshort">MultiConfiguration</strong>
</pre>
<hr />
<p>Support parallel execution of state machine.</p>
<p>This holds a set of configurations, and executes each transition on
each one. Configurations which fail to accept a step are silently
dropped; only if this results in no remaining configurations will <a
href="pyxb.utils.fac.UnrecognizedSymbolError-class.html"
class="link">UnrecognizedSymbolError</a> be raised. If a step admits
multiple valid transitions, a configuration is added for each one.</p>
<p>See <a href="pyxb.binding.content.AutomatonConfiguration-class.html"
class="link">pyxb.binding.content.AutomatonConfiguration</a> for an
alternative solution which holds actions associated with the transition
until the non-determinism is resolved.</p>
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<td><span class="summary-sig"><a href="pyxb.utils.fac.MultiConfiguration-class.html#__init__" class="summary-sig-name">__init__</a>(<span class="summary-sig-arg">self</span>,
<span class="summary-sig-arg">configuration</span>)</span></td>
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<span class="codelink"><a href="pyxb.utils.fac-pysrc.html#MultiConfiguration.__init__">source code</a></span>
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<td><span class="summary-sig"><a href="pyxb.utils.fac.MultiConfiguration-class.html#acceptableSymbols" class="summary-sig-name">acceptableSymbols</a>(<span class="summary-sig-arg">self</span>)</span><br />
Return the acceptable <a href="pyxb.utils.fac.Symbol-class.html"
class="link">Symbol</a>s given the current configuration.</td>
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<span class="codelink"><a href="pyxb.utils.fac-pysrc.html#MultiConfiguration.acceptableSymbols">source code</a></span>
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<td><span class="summary-sig"><a href="pyxb.utils.fac.MultiConfiguration-class.html#step" class="summary-sig-name">step</a>(<span class="summary-sig-arg">self</span>,
<span class="summary-sig-arg">symbol</span>)</span><br />
Execute an automaton transition using the given symbol.</td>
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<span class="codelink"><a href="pyxb.utils.fac-pysrc.html#MultiConfiguration.step">source code</a></span>
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<td><span class="summary-sig"><a href="pyxb.utils.fac.MultiConfiguration-class.html#acceptingConfigurations" class="summary-sig-name">acceptingConfigurations</a>(<span class="summary-sig-arg">self</span>)</span><br />
Return the set of configurations that are in an accepting state.</td>
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<a name="__configurations"></a><span class="summary-name">__configurations</span> = <code title="None">None</code>
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<h3 class="epydoc"><span class="sig"><span class="sig-name">__init__</span>(<span class="sig-arg">self</span>,
<span class="sig-arg">configuration</span>)</span>
<br /><em class="fname">(Constructor)</em>
</h3>
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<dl class="fields">
<dt>Overrides:
object.__init__
<dd><em class="note">(inherited documentation)</em></dd>
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<a name="acceptableSymbols"></a>
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<h3 class="epydoc"><span class="sig"><span class="sig-name">acceptableSymbols</span>(<span class="sig-arg">self</span>)</span>
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><span class="codelink"><a href="pyxb.utils.fac-pysrc.html#MultiConfiguration.acceptableSymbols">source code</a></span>
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<p>Return the acceptable <a href="pyxb.utils.fac.Symbol-class.html"
class="link">Symbol</a>s given the current configuration.</p>
<p>This method extracts the symbol from all candidate transitions that
are permitted based on the current counter values. Because transitions
are presented in a preferred order, the symbols are as well.</p>
<dl class="fields">
<dt>Overrides:
<a href="pyxb.utils.fac.Configuration_ABC-class.html#acceptableSymbols">Configuration_ABC.acceptableSymbols</a>
<dd><em class="note">(inherited documentation)</em></dd>
</dt>
</dl>
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<a name="step"></a>
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<h3 class="epydoc"><span class="sig"><span class="sig-name">step</span>(<span class="sig-arg">self</span>,
<span class="sig-arg">symbol</span>)</span>
</h3>
</td><td align="right" valign="top"
><span class="codelink"><a href="pyxb.utils.fac-pysrc.html#MultiConfiguration.step">source code</a></span>
</td>
</tr></table>
<p>Execute an automaton transition using the given symbol.</p>
<dl class="fields">
<dt>Parameters:</dt>
<dd><ul class="nomargin-top">
<li><strong class="pname"><code>symbol</code></strong> - A symbol from the alphabet of the automaton's language. This is
a Python value that should be accepted by the <a
href="pyxb.utils.fac.SymbolMatch_mixin-class.html#match"
class="link">SymbolMatch_mixin.match</a> method of a <a
href="pyxb.utils.fac.State-class.html#symbol"
class="link">State.symbol</a>. It is not a <a
href="pyxb.utils.fac.Symbol-class.html" class="link">Symbol</a>
instance.</li>
</ul></dd>
<dt>Returns:</dt>
<dd>The new configuration resulting from the step.</dd>
<dt>Raises:</dt>
<dd><ul class="nomargin-top">
<li><code><strong class='fraise'><a href="pyxb.utils.fac.AutomatonStepError-class.html">AutomatonStepError</a></strong></code> - <a href="pyxb.utils.fac.UnrecognizedSymbolError-class.html"
class="link">UnrecognizedSymbolError</a> when no transition
compatible with <code>symbol</code> is available, and <a
href="pyxb.utils.fac.NondeterministicSymbolError-class.html"
class="link">NondeterministicSymbolError</a> if <code>symbol</code>
admits multiple transitions and the subclass does not support
non-deterministic steps (see <a
href="pyxb.utils.fac.MultiConfiguration-class.html"
class="link">MultiConfiguration</a>).</li>
</ul></dd>
<dt>Overrides:
<a href="pyxb.utils.fac.Configuration_ABC-class.html#step">Configuration_ABC.step</a>
<dd><em class="note">(inherited documentation)</em></dd>
</dt>
</dl>
</td></tr></table>
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<h3 class="epydoc"><span class="sig"><span class="sig-name">acceptingConfigurations</span>(<span class="sig-arg">self</span>)</span>
</h3>
</td><td align="right" valign="top"
><span class="codelink"><a href="pyxb.utils.fac-pysrc.html#MultiConfiguration.acceptingConfigurations">source code</a></span>
</td>
</tr></table>
<p>Return the set of configurations that are in an accepting state.</p>
<p>Note that some of the configurations may be within a sub-automaton;
their presence in the return value is because the root configuration is
also accepting.</p>
<dl class="fields">
</dl>
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