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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
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<head>
<title>Module: utils</title>
</head>
<body bgcolor="#ffffff">
<p><i><a href="../../../index.html">Table of Contents</a></i></p>
<table border="0" cellpadding="5" cellspacing="0" width="100%">
<tr>
<th rowspan="2"
valign="top"
align="left"
width="10%"
bgcolor="#88bbee"><font color="#000000">Module: utils</font>
</th>
<th bgcolor="#88bbee"
width="90%"
align="right"><font color="#000000">../HappyDoc-r2_1/happydoclib/parseinfo/utils.py</font>
</th>
</tr>
<tr>
<td>
<p>Utility functions for parseinfo package.</p>
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<font color="#000000">
<a name="Imported modules">Imported modules</a>
</font>
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valign="top"
align="left"
width="80%"
>
<font color="#000000"> </font>
</th>
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<tr>
<td>
<b>import</b> <a href="http://www.python.org/doc/current/lib/module-pprint.html">pprint</a><br>
<b>import</b> <a href="http://www.python.org/doc/current/lib/module-symbol.html">symbol</a><br>
<b>import</b> <a href="http://www.python.org/doc/current/lib/module-token.html">token</a><br>
<b>import</b> <a href="http://www.python.org/doc/current/lib/module-types.html">types</a><br>
</td></tr>
<tr>
<th bgcolor="#99ccff"
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<font color="#000000">
<a name="Functions">Functions</a>
</font>
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valign="top"
align="left"
width="80%"
>
<font color="#000000"> </font>
</th>
</tr>
<tr>
<td>
<a href="#drill">drill</a><br>
<a href="#findNode">findNode</a><br>
<a href="#joinCodeSnippets">joinCodeSnippets</a><br>
<a href="#lenientMatch">lenientMatch</a><br>
<a href="#match">match</a><br>
<a href="#parseTreeToString">parseTreeToString</a><br>
<tr>
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rowspan="2"
valign="top"
align="left"
width="20%"
>
<font color="#000000">
<a name="drill"></a>
</font>
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<th bgcolor="#99ccff"
valign="top"
align="left"
width="80%"
>
<font color="#000000">drill </font>
</th>
</tr>
<tr>
<td>
<font color="#000088"><pre>
drill ( tree, depth )
</pre></font>
<p>Return the section of the parse <code>tree</code> that is <code>depth</code> nodes deep.</p>
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rowspan="2"
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>
<font color="#000000">
<a name="findNode"></a>
</font>
</th>
<th bgcolor="#99ccff"
valign="top"
align="left"
width="80%"
>
<font color="#000000">findNode </font>
</th>
</tr>
<tr>
<td>
<font color="#000088"><pre>
findNode (
tree,
node,
response=None,
)
</pre></font>
<p>Return a sequence of subtrees starting with node value of <code>node</code>.</p>
<tr>
<th bgcolor="#99ccff"
rowspan="2"
valign="top"
align="left"
width="20%"
>
<font color="#000000">
<a name="joinCodeSnippets"></a>
</font>
</th>
<th bgcolor="#99ccff"
valign="top"
align="left"
width="80%"
>
<font color="#000000">joinCodeSnippets </font>
</th>
</tr>
<tr>
<td>
<font color="#000088"><pre>
joinCodeSnippets (
first,
second,
separator,
)
</pre></font>
<h3>Join two code snippets into one string.</h3>
<p> Use some general code content rules to try to make the
resulting snippet look nice.</p>
<tr>
<th bgcolor="#99ccff"
rowspan="2"
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align="left"
width="20%"
>
<font color="#000000">
<a name="lenientMatch"></a>
</font>
</th>
<th bgcolor="#99ccff"
valign="top"
align="left"
width="80%"
>
<font color="#000000">lenientMatch </font>
</th>
</tr>
<tr>
<td>
<font color="#000088"><pre>
lenientMatch (
pattern,
data,
vars=None,
dbg=0,
)
</pre></font>
<h3>Match `data' to `pattern', with variable extraction.</h3>
<dl>
<dt> pattern</dt>
<dd>Pattern to match against, possibly containing variables.</dd>
<dt> data</dt>
<dd>Data to be checked and against which variables are extracted.</dd>
<dt> vars</dt>
<dd>Dictionary of variables which have already been found. If not
provided, an empty dictionary is created.</dd>
</dl>
<p> The `pattern' value may contain variables of the form ['varname'] which
are allowed to match anything. The value that is matched is returned as
part of a dictionary which maps <code>varname</code> to the matched value. <code>varname</code>
is not required to be a string object, but using strings makes patterns
and the code which uses them more readable.</p>
<p> This function is based on the match() function, but is more lenient.
The pattern does not have to completely describe the tree. Instead,
it can be the <code>top</code> portion of the tree. Everything must match down
to the leaves of the pattern. At that point, the matching stops. If
a match was found at all, the return values indicate a match.</p>
<p> This function returns two values: a boolean indicating whether a match
was found and a dictionary mapping variable names to their associated
values.</p>
<tr>
<th bgcolor="#99ccff"
rowspan="2"
valign="top"
align="left"
width="20%"
>
<font color="#000000">
<a name="match"></a>
</font>
</th>
<th bgcolor="#99ccff"
valign="top"
align="left"
width="80%"
>
<font color="#000000">match </font>
</th>
</tr>
<tr>
<td>
<font color="#000088"><pre>
match (
pattern,
data,
vars=None,
dbg=0,
)
</pre></font>
<h3>Match `data' to `pattern', with variable extraction.</h3>
<dl>
<dt> pattern</dt>
<dd>Pattern to match against, possibly containing variables.</dd>
<dt> data</dt>
<dd>Data to be checked and against which variables are extracted.</dd>
<dt> vars</dt>
<dd>Dictionary of variables which have already been found. If not
provided, an empty dictionary is created.</dd>
</dl>
<p> The `pattern' value may contain variables of the form ['varname'] which
are allowed to match anything. The value that is matched is returned as
part of a dictionary which maps <code>varname</code> to the matched value. <code>varname</code>
is not required to be a string object, but using strings makes patterns
and the code which uses them more readable.</p>
<p> This function returns two values: a boolean indicating whether a match
was found and a dictionary mapping variable names to their associated
values.</p>
<tr>
<th bgcolor="#99ccff"
rowspan="2"
valign="top"
align="left"
width="20%"
>
<font color="#000000">
<a name="parseTreeToString"></a>
</font>
</th>
<th bgcolor="#99ccff"
valign="top"
align="left"
width="80%"
>
<font color="#000000">parseTreeToString </font>
</th>
</tr>
<tr>
<td>
<font color="#000088"><pre>
parseTreeToString ( tree, separator=' ' )
</pre></font>
<h3>Convert a parse tree to a string which would have parsed in that way.</h3>
<p> Given a parse tree, walk it to determine the original string
which would have been parsed to produce that tree.</p>
</td></tr>
</td></tr>
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</td>
</tr>
</table>
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<p><i><a href="../../../index.html">Table of Contents</a></i></p>
<font size="-2"><i>This document was automatically generated
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