<?xml version="1.0" encoding="ascii"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<title>genshi.path</title>
<link rel="stylesheet" href="epydoc.css" type="text/css" />
<script type="text/javascript" src="epydoc.js"></script>
</head>
<body bgcolor="white" text="black" link="blue" vlink="#204080"
alink="#204080">
<!-- ==================== NAVIGATION BAR ==================== -->
<table class="navbar" border="0" width="100%" cellpadding="0"
bgcolor="#a0c0ff" cellspacing="0">
<tr valign="middle">
<!-- Home link -->
<th> <a
href="genshi-module.html">Home</a> </th>
<!-- Tree link -->
<th> <a
href="module-tree.html">Trees</a> </th>
<!-- Index link -->
<th> <a
href="identifier-index.html">Indices</a> </th>
<!-- Help link -->
<th> <a
href="help.html">Help</a> </th>
<!-- Project homepage -->
<th class="navbar" align="right" width="100%">
<table border="0" cellpadding="0" cellspacing="0">
<tr><th class="navbar" align="center"
><a class="navbar" target="_top" href="../index.html">Documentation Index</a></th>
</tr></table></th>
</tr>
</table>
<table width="100%" cellpadding="0" cellspacing="0">
<tr valign="top">
<td width="100%">
<span class="breadcrumbs">
<a href="genshi-module.html">Package genshi</a> ::
Module path
</span>
</td>
<td>
<table cellpadding="0" cellspacing="0">
<!-- hide/show private -->
</table>
</td>
</tr>
</table>
<!-- ==================== MODULE DESCRIPTION ==================== -->
<h1 class="epydoc">Module path</h1><p class="nomargin-top"></p>
<p>Basic support for evaluating XPath expressions against streams.</p>
<pre class="py-doctest">
<span class="py-prompt">>>> </span><span class="py-keyword">from</span> genshi.input <span class="py-keyword">import</span> XML
<span class="py-prompt">>>> </span>doc = XML(<span class="py-string">'''<doc></span>
<span class="py-more">... </span><span class="py-string"> <items count="4"></span>
<span class="py-more">... </span><span class="py-string"> <item status="new"></span>
<span class="py-more">... </span><span class="py-string"> <summary>Foo</summary></span>
<span class="py-more">... </span><span class="py-string"> </item></span>
<span class="py-more">... </span><span class="py-string"> <item status="closed"></span>
<span class="py-more">... </span><span class="py-string"> <summary>Bar</summary></span>
<span class="py-more">... </span><span class="py-string"> </item></span>
<span class="py-more">... </span><span class="py-string"> <item status="closed" resolution="invalid"></span>
<span class="py-more">... </span><span class="py-string"> <summary>Baz</summary></span>
<span class="py-more">... </span><span class="py-string"> </item></span>
<span class="py-more">... </span><span class="py-string"> <item status="closed" resolution="fixed"></span>
<span class="py-more">... </span><span class="py-string"> <summary>Waz</summary></span>
<span class="py-more">... </span><span class="py-string"> </item></span>
<span class="py-more">... </span><span class="py-string"> </items></span>
<span class="py-more">... </span><span class="py-string"></doc>'''</span>)
<span class="py-prompt">>>> </span><span class="py-keyword">print</span>(doc.select(<span class="py-string">'items/item[@status="closed" and '</span>
<span class="py-more">... </span> <span class="py-string">'(@resolution="invalid" or not(@resolution))]/summary/text()'</span>))
<span class="py-output">BarBaz</span></pre>
<p>Because the XPath engine operates on markup streams (as opposed to tree
structures), it only implements a subset of the full XPath 1.0 language.</p>
<!-- ==================== CLASSES ==================== -->
<a name="section-Classes"></a>
<table class="summary" border="1" cellpadding="3"
cellspacing="0" width="100%" bgcolor="white">
<tr bgcolor="#70b0f0" class="table-header">
<td align="left" colspan="2" class="table-header">
<span class="table-header">Classes</span></td>
</tr>
<tr>
<td width="15%" align="right" valign="top" class="summary">
<span class="summary-type"> </span>
</td><td class="summary">
<a href="genshi.path.Path-class.html" class="summary-name">Path</a><br />
Implements basic XPath support on streams.
</td>
</tr>
<tr>
<td width="15%" align="right" valign="top" class="summary">
<span class="summary-type"> </span>
</td><td class="summary">
<a href="genshi.path.PathSyntaxError-class.html" class="summary-name">PathSyntaxError</a><br />
Exception raised when an XPath expression is syntactically incorrect.
</td>
</tr>
</table>
<!-- ==================== NAVIGATION BAR ==================== -->
<table class="navbar" border="0" width="100%" cellpadding="0"
bgcolor="#a0c0ff" cellspacing="0">
<tr valign="middle">
<!-- Home link -->
<th> <a
href="genshi-module.html">Home</a> </th>
<!-- Tree link -->
<th> <a
href="module-tree.html">Trees</a> </th>
<!-- Index link -->
<th> <a
href="identifier-index.html">Indices</a> </th>
<!-- Help link -->
<th> <a
href="help.html">Help</a> </th>
<!-- Project homepage -->
<th class="navbar" align="right" width="100%">
<table border="0" cellpadding="0" cellspacing="0">
<tr><th class="navbar" align="center"
><a class="navbar" target="_top" href="../index.html">Documentation Index</a></th>
</tr></table></th>
</tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" width="100%%">
<tr>
<td align="left" class="footer">
Generated by Epydoc 3.0.1 on Sun Jan 27 18:17:20 2013
</td>
<td align="right" class="footer">
<a target="mainFrame" href="http://epydoc.sourceforge.net"
>http://epydoc.sourceforge.net</a>
</td>
</tr>
</table>
<script type="text/javascript">
<!--
// Private objects are initially displayed (because if
// javascript is turned off then we want them to be
// visible); but by default, we want to hide them. So hide
// them unless we have a cookie that says to show them.
checkCookie();
// -->
</script>
</body>
</html>
