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pybison


			
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          PyBison&nbsp;API&nbsp;Reference
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        Module&nbsp;bison
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<!-- =========== START OF MODULE DESCRIPTION =========== -->
<h2 class="module">Module bison</h2>

<p>Wrapper module for interfacing with Bison (yacc)</p>
<p>Written April 2004 by David McNab &lt;david&#64;freenet.org.nz&gt; 
Copyright (c) 2004 by David McNab, all rights reserved.</p>
<p>Released under the GNU General Public License, a copy of which should 
appear in this distribution in the file called 'COPYING'. If this file is 
missing, then you can obtain a copy of the GPL license document from the 
GNU website at http://www.gnu.org.</p>
<p>This software is released with no warranty whatsoever. Use it at your 
own risk.</p>
If you wish to use this software in a commercial application, and wish 
to depart from the GPL licensing requirements, please contact the author 
and apply for a commercial license.
<hr/>

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  <b><a href="bison.BisonError-class.html"><code>BisonError</code></a></b></td>
  <td>Flags an error to yyparse()</td></tr>
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  <b><a href="bison.BisonNode-class.html"><code>BisonNode</code></a></b></td>
  <td>Generic class for wrapping parse targets.</td></tr>
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  <b><a href="bison.BisonParser-class.html"><code>BisonParser</code></a></b></td>
  <td>Base parser class</td></tr>
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  <b><a href="bison.ParserSyntaxError-class.html"><code>ParserSyntaxError</code></a></b></td>
  <td>&nbsp;</td></tr>
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  <td><code><span class="summary-sig"><a href="bison-module.html#bisonToPython" class="summary-sig-name"><code>bisonToPython</code></a>(<span class=summary-sig-arg>bisonfileName</span>,
          <span class=summary-sig-arg>lexfileName</span>,
          <span class=summary-sig-arg>pyfileName</span>,
          <span class=summary-sig-arg>generateClasses</span>)</span></code>
<br />
Rips the rules, tokens and precedences from a bison file, and the 
verbatim text from a lex file and generates a boilerplate python file 
containing a Parser class with handler methods and grammar attributes</td></tr>
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<!-- =========== START OF VARIABLE SUMMARY =========== -->
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  <th colspan="2">Variable Summary</th></tr>
<tr><td align="right" valign="top" width="15%"><font size="-1"><code>SRE_Pattern</code></font></td>
<td><b><a href="bison-module.html#reSpaces"><code>reSpaces</code></a></b> = <span title="&lt;_sre.SRE_Pattern object at 0x4029a2f8&gt;"><code><span class="re"><span class="re-char">\s</span><span class="re-op">+</span></span>                                           </code>
</span></td></tr>
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<a name="bisonToPython"></a>
<table width="100%" class="func-details" bgcolor="#e0e0e0"><tr><td>
  <h3><span class="sig"><span class="sig-name">bisonToPython</span>(<span class=sig-arg>bisonfileName</span>,
          <span class=sig-arg>lexfileName</span>,
          <span class=sig-arg>pyfileName</span>,
          <span class=sig-arg>generateClasses</span>=<span class=sig-default>0</span>)</span>
  </h3>
  <p>Rips the rules, tokens and precedences from a bison file, and the 
  verbatim text from a lex file and generates a boilerplate python file 
  containing a Parser class with handler methods and grammar 
  attributes</p>
  Arguments:
  <ul>
    <li>
      bisonfileName - name of input bison script
    </li>
    <li>
      lexfileName - name of input flex script
    </li>
    <li>
      pyfileName - name of output python file
    </li>
    <li>
      generateClasses - flag - default 0 - if 1, causes a unique class 
      to be defined for each parse target, and for the corresponding 
      target handler method in the main Parser class to use this class 
      when creating the node.
    </li>
  </ul>
  <dl><dt></dt><dd>
  </dd></dl>
</td></tr></table>
<br />


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  <th colspan="2">Variable Details</th></tr>
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<table width="100%" class="var-details" bgcolor="#e0e0e0"><tr><td>
<a name="reSpaces"></a>
<h3>reSpaces</h3>
<dl>
  <dt></dt>
  <dd>
    <dl>
      <dt><b>Type:</b></dt>
      <dd>
          <code>SRE_Pattern</code>

      </dd>
<span title="&lt;_sre.SRE_Pattern object at 0x4029a2f8&gt;">      <dt><b>Value:</b></dt>
      <dd><table><tr><td>
<pre class="variable">
<span class="re"><span class="re-char">\s</span><span class="re-op">+</span></span>                                                                    </pre>
        </td></tr></table></dd>
</span>    </dl>
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