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|
<?xml version="1.0" encoding="utf-8"?>
<!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>JSON::Pure::Generator::State</title>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<link rel="stylesheet" href="../../../../css/reset.css" type="text/css" media="screen" />
<link rel="stylesheet" href="../../../../css/main.css" type="text/css" media="screen" />
<link rel="stylesheet" href="../../../../css/github.css" type="text/css" media="screen" />
<script src="../../../../js/jquery-1.3.2.min.js" type="text/javascript" charset="utf-8"></script>
<script src="../../../../js/jquery-effect.js" type="text/javascript" charset="utf-8"></script>
<script src="../../../../js/main.js" type="text/javascript" charset="utf-8"></script>
<script src="../../../../js/highlight.pack.js" type="text/javascript" charset="utf-8"></script>
</head>
<body>
<div class="banner">
<h1>
<span class="type">Class</span>
JSON::Pure::Generator::State
<span class="parent"><
Object
</span>
</h1>
<ul class="files">
<li><a href="../../../../files/lib/json/pure/generator_rb.html">lib/json/pure/generator.rb</a></li>
</ul>
</div>
<div id="bodyContent">
<div id="content">
<div class="description">
<p>This class is used to create <a href="State.html">State</a> instances, that
are use to hold data while generating a <a
href="../../../JSON.html">JSON</a> text from a Ruby data structure.</p>
</div>
<!-- Method ref -->
<div class="sectiontitle">Methods</div>
<dl class="methods">
<dt>#</dt>
<dd>
<ul>
<li>
<a href="#method-i-5B-5D">[]</a>
</li>
</ul>
</dd>
<dt>A</dt>
<dd>
<ul>
<li>
<a href="#method-i-allow_nan-3F">allow_nan?</a>,
</li>
<li>
<a href="#method-i-ascii_only-3F">ascii_only?</a>
</li>
</ul>
</dd>
<dt>C</dt>
<dd>
<ul>
<li>
<a href="#method-i-check_circular-3F">check_circular?</a>,
</li>
<li>
<a href="#method-i-configure">configure</a>
</li>
</ul>
</dd>
<dt>F</dt>
<dd>
<ul>
<li>
<a href="#method-c-from_state">from_state</a>
</li>
</ul>
</dd>
<dt>G</dt>
<dd>
<ul>
<li>
<a href="#method-i-generate">generate</a>
</li>
</ul>
</dd>
<dt>M</dt>
<dd>
<ul>
<li>
<a href="#method-i-merge">merge</a>
</li>
</ul>
</dd>
<dt>N</dt>
<dd>
<ul>
<li>
<a href="#method-c-new">new</a>
</li>
</ul>
</dd>
<dt>Q</dt>
<dd>
<ul>
<li>
<a href="#method-i-quirks_mode-3F">quirks_mode?</a>
</li>
</ul>
</dd>
<dt>T</dt>
<dd>
<ul>
<li>
<a href="#method-i-to_h">to_h</a>
</li>
</ul>
</dd>
</dl>
<!-- Section attributes -->
<div class="sectiontitle">Attributes</div>
<table border='0' cellpadding='5'>
<tr valign='top'>
<td class='attr-rw'>
[RW]
</td>
<td class='attr-name'>array_nl</td>
<td class='attr-desc'><p>This string is put at the end of a line that holds a <a
href="../../../JSON.html">JSON</a> array.</p></td>
</tr>
<tr valign='top'>
<td class='attr-rw'>
[RW]
</td>
<td class='attr-name'>depth</td>
<td class='attr-desc'><p>This integer returns the current depth data structure nesting in the
generated <a href="../../../JSON.html">JSON</a>.</p></td>
</tr>
<tr valign='top'>
<td class='attr-rw'>
[RW]
</td>
<td class='attr-name'>indent</td>
<td class='attr-desc'><p>This string is used to indent levels in the <a
href="../../../JSON.html">JSON</a> text.</p></td>
</tr>
<tr valign='top'>
<td class='attr-rw'>
[RW]
</td>
<td class='attr-name'>max_nesting</td>
<td class='attr-desc'><p>This integer returns the maximum level of data structure nesting in the
generated <a href="../../../JSON.html">JSON</a>, <a
href="State.html#attribute-i-max_nesting">#max_nesting</a> = 0 if no
maximum is checked.</p></td>
</tr>
<tr valign='top'>
<td class='attr-rw'>
[RW]
</td>
<td class='attr-name'>object_nl</td>
<td class='attr-desc'><p>This string is put at the end of a line that holds a <a
href="../../../JSON.html">JSON</a> object (or Hash).</p></td>
</tr>
<tr valign='top'>
<td class='attr-rw'>
[RW]
</td>
<td class='attr-name'>quirks_mode</td>
<td class='attr-desc'><p>If this attribute is set to true, quirks mode is enabled, otherwise it’s
disabled.</p></td>
</tr>
<tr valign='top'>
<td class='attr-rw'>
[RW]
</td>
<td class='attr-name'>space</td>
<td class='attr-desc'><p>This string is used to insert a space between the tokens in a <a
href="../../../JSON.html">JSON</a> string.</p></td>
</tr>
<tr valign='top'>
<td class='attr-rw'>
[RW]
</td>
<td class='attr-name'>space_before</td>
<td class='attr-desc'><p>This string is used to insert a space before the ‘:’ in <a
href="../../../JSON.html">JSON</a> objects.</p></td>
</tr>
</table>
<!-- Methods -->
<div class="sectiontitle">Class Public methods</div>
<div class="method">
<div class="title method-title" id="method-c-from_state">
<a name="method-c-from_state"></a><b>from_state</b>(opts)
</div>
<div class="description">
<p>Creates a <a href="State.html">State</a> object from <em>opts</em>, which
ought to be Hash to create a new <a href="State.html">State</a> instance
configured by <em>opts</em>, something else to create an unconfigured
instance. If <em>opts</em> is a <a href="State.html">State</a> object, it
is just returned.</p>
</div>
<div class="sourcecode">
<p class="source-link">
Source:
<a href="javascript:toggleSource('method-c-from_state_source')" id="l_method-c-from_state_source">show</a>
</p>
<div id="method-c-from_state_source" class="dyn-source">
<pre><span class="ruby-comment"># File lib/json/pure/generator.rb, line 108</span>
<span class="ruby-keyword">def</span> <span class="ruby-keyword ruby-title">self</span>.<span class="ruby-identifier">from_state</span>(<span class="ruby-identifier">opts</span>)
<span class="ruby-keyword">case</span>
<span class="ruby-keyword">when</span> <span class="ruby-keyword">self</span> <span class="ruby-operator">===</span> <span class="ruby-identifier">opts</span>
<span class="ruby-identifier">opts</span>
<span class="ruby-keyword">when</span> <span class="ruby-identifier">opts</span>.<span class="ruby-identifier">respond_to?</span>(<span class="ruby-value">:to_hash</span>)
<span class="ruby-identifier">new</span>(<span class="ruby-identifier">opts</span>.<span class="ruby-identifier">to_hash</span>)
<span class="ruby-keyword">when</span> <span class="ruby-identifier">opts</span>.<span class="ruby-identifier">respond_to?</span>(<span class="ruby-value">:to_h</span>)
<span class="ruby-identifier">new</span>(<span class="ruby-identifier">opts</span>.<span class="ruby-identifier">to_h</span>)
<span class="ruby-keyword">else</span>
<span class="ruby-constant">SAFE_STATE_PROTOTYPE</span>.<span class="ruby-identifier">dup</span>
<span class="ruby-keyword">end</span>
<span class="ruby-keyword">end</span></pre>
</div>
</div>
</div>
<div class="method">
<div class="title method-title" id="method-c-new">
<a name="method-c-new"></a><b>new</b>(opts = {})
</div>
<div class="description">
<p>Instantiates a new <a href="State.html">State</a> object, configured by
<em>opts</em>.</p>
<p><em>opts</em> can have the following keys:</p>
<ul><li>
<p><strong>indent</strong>: a string used to indent levels (default: ”),</p>
</li><li>
<p><strong>space</strong>: a string that is put after, a : or , delimiter
(default: ”),</p>
</li><li>
<p><strong><a
href="State.html#attribute-i-space_before">#space_before</a></strong>: a
string that is put before a : pair delimiter (default: ”),</p>
</li><li>
<p><strong><a href="State.html#attribute-i-object_nl">#object_nl</a></strong>:
a string that is put at the end of a <a href="../../../JSON.html">JSON</a>
object (default: ”),</p>
</li><li>
<p><strong><a href="State.html#attribute-i-array_nl">#array_nl</a></strong>: a
string that is put at the end of a <a href="../../../JSON.html">JSON</a>
array (default: ”),</p>
</li><li>
<p><strong>check_circular</strong>: is deprecated now, use the :<a
href="State.html#attribute-i-max_nesting">#max_nesting</a> option instead,</p>
</li><li>
<p><strong><a
href="State.html#attribute-i-max_nesting">#max_nesting</a></strong>: sets
the maximum level of data structure nesting in the generated <a
href="../../../JSON.html">JSON</a>, <a
href="State.html#attribute-i-max_nesting">#max_nesting</a> = 0 if no
maximum should be checked.</p>
</li><li>
<p><strong>allow_nan</strong>: true if NaN, Infinity, and -Infinity should be
generated, otherwise an exception is thrown, if these values are
encountered. This options defaults to false.</p>
</li><li>
<p><strong><a
href="State.html#attribute-i-quirks_mode">#quirks_mode</a></strong>:
Enables <a href="State.html#attribute-i-quirks_mode">#quirks_mode</a> for
parser, that is for example generating single <a
href="../../../JSON.html">JSON</a> values instead of documents is possible.</p>
</li></ul>
</div>
<div class="sourcecode">
<p class="source-link">
Source:
<a href="javascript:toggleSource('method-c-new_source')" id="l_method-c-new_source">show</a>
</p>
<div id="method-c-new_source" class="dyn-source">
<pre><span class="ruby-comment"># File lib/json/pure/generator.rb, line 138</span>
<span class="ruby-keyword">def</span> <span class="ruby-keyword ruby-title">initialize</span>(<span class="ruby-identifier">opts</span> = {})
<span class="ruby-ivar">@indent</span> = <span class="ruby-string">''</span>
<span class="ruby-ivar">@space</span> = <span class="ruby-string">''</span>
<span class="ruby-ivar">@space_before</span> = <span class="ruby-string">''</span>
<span class="ruby-ivar">@object_nl</span> = <span class="ruby-string">''</span>
<span class="ruby-ivar">@array_nl</span> = <span class="ruby-string">''</span>
<span class="ruby-ivar">@allow_nan</span> = <span class="ruby-keyword">false</span>
<span class="ruby-ivar">@ascii_only</span> = <span class="ruby-keyword">false</span>
<span class="ruby-ivar">@quirks_mode</span> = <span class="ruby-keyword">false</span>
<span class="ruby-ivar">@buffer_initial_length</span> = <span class="ruby-number">1024</span>
<span class="ruby-identifier">configure</span> <span class="ruby-identifier">opts</span>
<span class="ruby-keyword">end</span></pre>
</div>
</div>
</div>
<div class="sectiontitle">Instance Public methods</div>
<div class="method">
<div class="title method-title" id="method-i-5B-5D">
<a name="method-i-5B-5D"></a><b>[]</b>(name)
</div>
<div class="description">
<p>Return the value returned by method <code>name</code>.</p>
</div>
<div class="sourcecode">
<p class="source-link">
Source:
<a href="javascript:toggleSource('method-i-5B-5D_source')" id="l_method-i-5B-5D_source">show</a>
</p>
<div id="method-i-5B-5D_source" class="dyn-source">
<pre><span class="ruby-comment"># File lib/json/pure/generator.rb, line 265</span>
<span class="ruby-keyword">def</span> <span class="ruby-operator">[]</span>(<span class="ruby-keyword ruby-title">name</span>)
<span class="ruby-identifier">__send__</span> <span class="ruby-identifier">name</span>
<span class="ruby-keyword">end</span></pre>
</div>
</div>
</div>
<div class="method">
<div class="title method-title" id="method-i-allow_nan-3F">
<a name="method-i-allow_nan-3F"></a><b>allow_nan?</b>()
</div>
<div class="description">
<p>Returns true if NaN, Infinity, and -Infinity should be considered as valid
<a href="../../../JSON.html">JSON</a> and output.</p>
</div>
<div class="sourcecode">
<p class="source-link">
Source:
<a href="javascript:toggleSource('method-i-allow_nan-3F_source')" id="l_method-i-allow_nan-3F_source">show</a>
</p>
<div id="method-i-allow_nan-3F_source" class="dyn-source">
<pre><span class="ruby-comment"># File lib/json/pure/generator.rb, line 205</span>
<span class="ruby-keyword">def</span> <span class="ruby-keyword ruby-title">allow_nan?</span>
<span class="ruby-ivar">@allow_nan</span>
<span class="ruby-keyword">end</span></pre>
</div>
</div>
</div>
<div class="method">
<div class="title method-title" id="method-i-ascii_only-3F">
<a name="method-i-ascii_only-3F"></a><b>ascii_only?</b>()
</div>
<div class="description">
<p>Returns true, if only ASCII characters should be generated. Otherwise
returns false.</p>
</div>
<div class="sourcecode">
<p class="source-link">
Source:
<a href="javascript:toggleSource('method-i-ascii_only-3F_source')" id="l_method-i-ascii_only-3F_source">show</a>
</p>
<div id="method-i-ascii_only-3F_source" class="dyn-source">
<pre><span class="ruby-comment"># File lib/json/pure/generator.rb, line 211</span>
<span class="ruby-keyword">def</span> <span class="ruby-keyword ruby-title">ascii_only?</span>
<span class="ruby-ivar">@ascii_only</span>
<span class="ruby-keyword">end</span></pre>
</div>
</div>
</div>
<div class="method">
<div class="title method-title" id="method-i-check_circular-3F">
<a name="method-i-check_circular-3F"></a><b>check_circular?</b>()
</div>
<div class="description">
<p>Returns true, if circular data structures are checked, otherwise returns
false.</p>
</div>
<div class="sourcecode">
<p class="source-link">
Source:
<a href="javascript:toggleSource('method-i-check_circular-3F_source')" id="l_method-i-check_circular-3F_source">show</a>
</p>
<div id="method-i-check_circular-3F_source" class="dyn-source">
<pre><span class="ruby-comment"># File lib/json/pure/generator.rb, line 199</span>
<span class="ruby-keyword">def</span> <span class="ruby-keyword ruby-title">check_circular?</span>
<span class="ruby-operator">!</span><span class="ruby-ivar">@max_nesting</span>.<span class="ruby-identifier">zero?</span>
<span class="ruby-keyword">end</span></pre>
</div>
</div>
</div>
<div class="method">
<div class="title method-title" id="method-i-configure">
<a name="method-i-configure"></a><b>configure</b>(opts)
</div>
<div class="description">
<p>Configure this <a href="State.html">State</a> instance with the Hash
<em>opts</em>, and return itself.</p>
</div>
<div class="aka">
Also aliased as: <a href="State.html#method-i-merge">merge</a>
</div>
<div class="sourcecode">
<p class="source-link">
Source:
<a href="javascript:toggleSource('method-i-configure_source')" id="l_method-i-configure_source">show</a>
</p>
<div id="method-i-configure_source" class="dyn-source">
<pre><span class="ruby-comment"># File lib/json/pure/generator.rb, line 222</span>
<span class="ruby-keyword">def</span> <span class="ruby-keyword ruby-title">configure</span>(<span class="ruby-identifier">opts</span>)
<span class="ruby-ivar">@indent</span> = <span class="ruby-identifier">opts</span>[<span class="ruby-value">:indent</span>] <span class="ruby-keyword">if</span> <span class="ruby-identifier">opts</span>.<span class="ruby-identifier">key?</span>(<span class="ruby-value">:indent</span>)
<span class="ruby-ivar">@space</span> = <span class="ruby-identifier">opts</span>[<span class="ruby-value">:space</span>] <span class="ruby-keyword">if</span> <span class="ruby-identifier">opts</span>.<span class="ruby-identifier">key?</span>(<span class="ruby-value">:space</span>)
<span class="ruby-ivar">@space_before</span> = <span class="ruby-identifier">opts</span>[<span class="ruby-value">:space_before</span>] <span class="ruby-keyword">if</span> <span class="ruby-identifier">opts</span>.<span class="ruby-identifier">key?</span>(<span class="ruby-value">:space_before</span>)
<span class="ruby-ivar">@object_nl</span> = <span class="ruby-identifier">opts</span>[<span class="ruby-value">:object_nl</span>] <span class="ruby-keyword">if</span> <span class="ruby-identifier">opts</span>.<span class="ruby-identifier">key?</span>(<span class="ruby-value">:object_nl</span>)
<span class="ruby-ivar">@array_nl</span> = <span class="ruby-identifier">opts</span>[<span class="ruby-value">:array_nl</span>] <span class="ruby-keyword">if</span> <span class="ruby-identifier">opts</span>.<span class="ruby-identifier">key?</span>(<span class="ruby-value">:array_nl</span>)
<span class="ruby-ivar">@allow_nan</span> = <span class="ruby-operator">!</span><span class="ruby-operator">!</span><span class="ruby-identifier">opts</span>[<span class="ruby-value">:allow_nan</span>] <span class="ruby-keyword">if</span> <span class="ruby-identifier">opts</span>.<span class="ruby-identifier">key?</span>(<span class="ruby-value">:allow_nan</span>)
<span class="ruby-ivar">@ascii_only</span> = <span class="ruby-identifier">opts</span>[<span class="ruby-value">:ascii_only</span>] <span class="ruby-keyword">if</span> <span class="ruby-identifier">opts</span>.<span class="ruby-identifier">key?</span>(<span class="ruby-value">:ascii_only</span>)
<span class="ruby-ivar">@depth</span> = <span class="ruby-identifier">opts</span>[<span class="ruby-value">:depth</span>] <span class="ruby-operator">||</span> <span class="ruby-number">0</span>
<span class="ruby-ivar">@quirks_mode</span> = <span class="ruby-identifier">opts</span>[<span class="ruby-value">:quirks_mode</span>] <span class="ruby-keyword">if</span> <span class="ruby-identifier">opts</span>.<span class="ruby-identifier">key?</span>(<span class="ruby-value">:quirks_mode</span>)
<span class="ruby-keyword">if</span> <span class="ruby-operator">!</span><span class="ruby-identifier">opts</span>.<span class="ruby-identifier">key?</span>(<span class="ruby-value">:max_nesting</span>) <span class="ruby-comment"># defaults to 19</span>
<span class="ruby-ivar">@max_nesting</span> = <span class="ruby-number">19</span>
<span class="ruby-keyword">elsif</span> <span class="ruby-identifier">opts</span>[<span class="ruby-value">:max_nesting</span>]
<span class="ruby-ivar">@max_nesting</span> = <span class="ruby-identifier">opts</span>[<span class="ruby-value">:max_nesting</span>]
<span class="ruby-keyword">else</span>
<span class="ruby-ivar">@max_nesting</span> = <span class="ruby-number">0</span>
<span class="ruby-keyword">end</span>
<span class="ruby-keyword">self</span>
<span class="ruby-keyword">end</span></pre>
</div>
</div>
</div>
<div class="method">
<div class="title method-title" id="method-i-generate">
<a name="method-i-generate"></a><b>generate</b>(obj)
</div>
<div class="description">
<p>Generates a valid <a href="../../../JSON.html">JSON</a> document from
object <code>obj</code> and returns the result. If no valid <a
href="../../../JSON.html">JSON</a> document can be created this method
raises a <a href="../../GeneratorError.html">GeneratorError</a> exception.</p>
</div>
<div class="sourcecode">
<p class="source-link">
Source:
<a href="javascript:toggleSource('method-i-generate_source')" id="l_method-i-generate_source">show</a>
</p>
<div id="method-i-generate_source" class="dyn-source">
<pre><span class="ruby-comment"># File lib/json/pure/generator.rb, line 256</span>
<span class="ruby-keyword">def</span> <span class="ruby-keyword ruby-title">generate</span>(<span class="ruby-identifier">obj</span>)
<span class="ruby-identifier">result</span> = <span class="ruby-identifier">obj</span>.<span class="ruby-identifier">to_json</span>(<span class="ruby-keyword">self</span>)
<span class="ruby-keyword">if</span> <span class="ruby-operator">!</span><span class="ruby-ivar">@quirks_mode</span> <span class="ruby-operator">&&</span> <span class="ruby-identifier">result</span> <span class="ruby-operator">!~</span> <span class="ruby-regexp">/\A\s*(?:\[.*\]|\{.*\})\s*\Z/</span>
<span class="ruby-identifier">raise</span> <span class="ruby-constant">GeneratorError</span>, <span class="ruby-string">"only generation of JSON objects or arrays allowed"</span>
<span class="ruby-keyword">end</span>
<span class="ruby-identifier">result</span>
<span class="ruby-keyword">end</span></pre>
</div>
</div>
</div>
<div class="method">
<div class="title method-title" id="method-i-merge">
<a name="method-i-merge"></a><b>merge</b>(opts)
</div>
<div class="description">
</div>
</div>
<div class="method">
<div class="title method-title" id="method-i-quirks_mode-3F">
<a name="method-i-quirks_mode-3F"></a><b>quirks_mode?</b>()
</div>
<div class="description">
<p>Returns true, if quirks mode is enabled. Otherwise returns false.</p>
</div>
<div class="sourcecode">
<p class="source-link">
Source:
<a href="javascript:toggleSource('method-i-quirks_mode-3F_source')" id="l_method-i-quirks_mode-3F_source">show</a>
</p>
<div id="method-i-quirks_mode-3F_source" class="dyn-source">
<pre><span class="ruby-comment"># File lib/json/pure/generator.rb, line 216</span>
<span class="ruby-keyword">def</span> <span class="ruby-keyword ruby-title">quirks_mode?</span>
<span class="ruby-ivar">@quirks_mode</span>
<span class="ruby-keyword">end</span></pre>
</div>
</div>
</div>
<div class="method">
<div class="title method-title" id="method-i-to_h">
<a name="method-i-to_h"></a><b>to_h</b>()
</div>
<div class="description">
<p>Returns the configuration instance variables as a hash, that can be passed
to the configure method.</p>
</div>
<div class="sourcecode">
<p class="source-link">
Source:
<a href="javascript:toggleSource('method-i-to_h_source')" id="l_method-i-to_h_source">show</a>
</p>
<div id="method-i-to_h_source" class="dyn-source">
<pre><span class="ruby-comment"># File lib/json/pure/generator.rb, line 245</span>
<span class="ruby-keyword">def</span> <span class="ruby-keyword ruby-title">to_h</span>
<span class="ruby-identifier">result</span> = {}
<span class="ruby-keyword">for</span> <span class="ruby-identifier">iv</span> <span class="ruby-keyword">in</span> <span class="ruby-node">]indent space space_before object_nl array_nl allow_nan max_nesting ascii_only quirks_mode buffer_initial_length depth]</span>
<span class="ruby-identifier">result</span>[<span class="ruby-identifier">iv</span>.<span class="ruby-identifier">intern</span>] = <span class="ruby-identifier">instance_variable_get</span>(<span class="ruby-node">"@#{iv}"</span>)
<span class="ruby-keyword">end</span>
<span class="ruby-identifier">result</span>
<span class="ruby-keyword">end</span></pre>
</div>
</div>
</div>
</div>
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