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<?xml version="1.0" encoding="iso-8859-1"?>
<!DOCTYPE html
PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<title>Class: HTMLTokenizer</title>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
<meta http-equiv="Content-Script-Type" content="text/javascript" />
<link rel="stylesheet" href=".././rdoc-style.css" type="text/css" media="screen" />
<script type="text/javascript">
// <![CDATA[
function popupCode( url ) {
window.open(url, "Code", "resizable=yes,scrollbars=yes,toolbar=no,status=no,height=150,width=400")
}
function toggleCode( id ) {
if ( document.getElementById )
elem = document.getElementById( id );
else if ( document.all )
elem = eval( "document.all." + id );
else
return false;
elemStyle = elem.style;
if ( elemStyle.display != "block" ) {
elemStyle.display = "block"
} else {
elemStyle.display = "none"
}
return true;
}
// Make codeblocks hidden by default
document.writeln( "<style type=\"text/css\">div.method-source-code { display: none }</style>" )
// ]]>
</script>
</head>
<body>
<div id="classHeader">
<table class="header-table">
<tr class="top-aligned-row">
<td><strong>Class</strong></td>
<td class="class-name-in-header">HTMLTokenizer</td>
</tr>
<tr class="top-aligned-row">
<td><strong>In:</strong></td>
<td>
<a href="../files/lib/openid/yadis/htmltokenizer_rb.html">
lib/openid/yadis/htmltokenizer.rb
</a>
<br />
</td>
</tr>
<tr class="top-aligned-row">
<td><strong>Parent:</strong></td>
<td>
Object
</td>
</tr>
</table>
</div>
<!-- banner header -->
<div id="bodyContent">
<div id="contextContent">
<div id="description">
<p>
A class to tokenize HTML.
</p>
<p>
Example:
</p>
<pre>
page = "<HTML>
<HEAD>
<TITLE>This is the title</TITLE>
</HEAD>
<!-- Here comes the <a href=\"missing.link\">blah</a>
comment body
-->
<BODY>
<H1>This is the header</H1>
<P>
This is the paragraph, it contains
<a href=\"link.html\">links</a>,
<img src=\"blah.gif\" optional alt='images
are
really cool'>. Ok, here is some more text and
<A href=\"http://another.link.com/\" target=\"_blank\">another link</A>.
</P>
</body>
</HTML>
"
toke = HTMLTokenizer.new(page)
assert("<h1>" == toke.getTag("h1", "h2", "h3").to_s.downcase)
assert(HTMLTag.new("<a href=\"link.html\">") == toke.getTag("IMG", "A"))
assert("links" == toke.getTrimmedText)
assert(toke.getTag("IMG", "A").attr_hash['optional'])
assert("_blank" == toke.getTag("IMG", "A").attr_hash['target'])
</pre>
</div>
</div>
<div id="method-list">
<h3 class="section-bar">Methods</h3>
<div class="name-list">
<a href="#M000005">getNextToken</a>
<a href="#M000006">getTag</a>
<a href="#M000007">getText</a>
<a href="#M000008">getTrimmedText</a>
<a href="#M000002">new</a>
<a href="#M000004">peekNextToken</a>
<a href="#M000003">reset</a>
<a href="#M000001">version</a>
</div>
</div>
</div>
<!-- if includes -->
<div id="section">
<div id="attribute-list">
<h3 class="section-bar">Attributes</h3>
<div class="name-list">
<table>
<tr class="top-aligned-row context-row">
<td class="context-item-name">page</td>
<td class="context-item-value"> [R] </td>
<td class="context-item-desc"></td>
</tr>
</table>
</div>
</div>
<!-- if method_list -->
<div id="methods">
<h3 class="section-bar">Public Class methods</h3>
<div id="method-M000002" class="method-detail">
<a name="M000002"></a>
<div class="method-heading">
<a href="HTMLTokenizer.src/M000002.html" target="Code" class="method-signature"
onclick="popupCode('HTMLTokenizer.src/M000002.html');return false;">
<span class="method-name">new</span><span class="method-args">(content)</span>
</a>
</div>
<div class="method-description">
<p>
Create a <a href="HTMLTokenizer.html#M000002">new</a> tokenizer, based on
the content, used as a string.
</p>
</div>
</div>
<div id="method-M000001" class="method-detail">
<a name="M000001"></a>
<div class="method-heading">
<a href="HTMLTokenizer.src/M000001.html" target="Code" class="method-signature"
onclick="popupCode('HTMLTokenizer.src/M000001.html');return false;">
<span class="method-name">version</span><span class="method-args">()</span>
</a>
</div>
<div class="method-description">
<p>
Get <a href="HTMLTokenizer.html#M000001">version</a> of <a
href="HTMLTokenizer.html">HTMLTokenizer</a> lib
</p>
</div>
</div>
<h3 class="section-bar">Public Instance methods</h3>
<div id="method-M000005" class="method-detail">
<a name="M000005"></a>
<div class="method-heading">
<a href="HTMLTokenizer.src/M000005.html" target="Code" class="method-signature"
onclick="popupCode('HTMLTokenizer.src/M000005.html');return false;">
<span class="method-name">getNextToken</span><span class="method-args">()</span>
</a>
</div>
<div class="method-description">
<p>
Get the next token, returns an instance of
</p>
<ul>
<li><a href="HTMLText.html">HTMLText</a>
</li>
<li><a href="HTMLToken.html">HTMLToken</a>
</li>
<li><a href="HTMLTag.html">HTMLTag</a>
</li>
</ul>
</div>
</div>
<div id="method-M000006" class="method-detail">
<a name="M000006"></a>
<div class="method-heading">
<a href="HTMLTokenizer.src/M000006.html" target="Code" class="method-signature"
onclick="popupCode('HTMLTokenizer.src/M000006.html');return false;">
<span class="method-name">getTag</span><span class="method-args">(*sought_tags)</span>
</a>
</div>
<div class="method-description">
<p>
Get a tag from the specified set of desired tags. For example: <tt>foo =
toke.getTag("h1", "h2", "h3")</tt> Will
return the next header tag encountered.
</p>
</div>
</div>
<div id="method-M000007" class="method-detail">
<a name="M000007"></a>
<div class="method-heading">
<a href="HTMLTokenizer.src/M000007.html" target="Code" class="method-signature"
onclick="popupCode('HTMLTokenizer.src/M000007.html');return false;">
<span class="method-name">getText</span><span class="method-args">(until_tag = nil)</span>
</a>
</div>
<div class="method-description">
<p>
Get all the text between the current position and the next tag (if
specified) or a specific later tag
</p>
</div>
</div>
<div id="method-M000008" class="method-detail">
<a name="M000008"></a>
<div class="method-heading">
<a href="HTMLTokenizer.src/M000008.html" target="Code" class="method-signature"
onclick="popupCode('HTMLTokenizer.src/M000008.html');return false;">
<span class="method-name">getTrimmedText</span><span class="method-args">(until_tag = nil)</span>
</a>
</div>
<div class="method-description">
<p>
Like <a href="HTMLTokenizer.html#M000007">getText</a>, but squeeze all
whitespace, getting rid of leading and trailing whitespace, and squeezing
multiple spaces into a single space.
</p>
</div>
</div>
<div id="method-M000004" class="method-detail">
<a name="M000004"></a>
<div class="method-heading">
<a href="HTMLTokenizer.src/M000004.html" target="Code" class="method-signature"
onclick="popupCode('HTMLTokenizer.src/M000004.html');return false;">
<span class="method-name">peekNextToken</span><span class="method-args">()</span>
</a>
</div>
<div class="method-description">
<p>
Look at the next token, but don‘t actually grab it
</p>
</div>
</div>
<div id="method-M000003" class="method-detail">
<a name="M000003"></a>
<div class="method-heading">
<a href="HTMLTokenizer.src/M000003.html" target="Code" class="method-signature"
onclick="popupCode('HTMLTokenizer.src/M000003.html');return false;">
<span class="method-name">reset</span><span class="method-args">()</span>
</a>
</div>
<div class="method-description">
<p>
Reset the parser, setting the current position back at the stop
</p>
</div>
</div>
</div>
</div>
<div id="validator-badges">
<p><small><a href="http://validator.w3.org/check/referer">[Validate]</a></small></p>
</div>
</body>
</html>
|
