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<h3>Methods</h3>
<ul class="link-list" role="directory">
<li ><a href="#method-i-convert_to_string">#convert_to_string</a>
<li ><a href="#method-i-field_separator_used">#field_separator_used</a>
<li ><a href="#method-i-newline_option_used">#newline_option_used</a>
<li ><a href="#method-i-newline_used">#newline_used</a>
<li ><a href="#method-i-prepare_conversion_options">#prepare_conversion_options</a>
<li ><a href="#method-i-record_separator_used">#record_separator_used</a>
<li ><a href="#method-i-transcode_to_external">#transcode_to_external</a>
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<h1 id="module-GxG::Support::Library::Transcoding" class="module">
module GxG::Support::Library::Transcoding
</h1>
<section class="description">
</section>
<section id="5Buntitled-5D" class="documentation-section">
<section id="public-instance-5Buntitled-5D-method-details" class="method-section">
<header>
<h3>Public Instance Methods</h3>
</header>
<div id="method-i-convert_to_string" class="method-detail ">
<div class="method-heading">
<span class="method-name">convert_to_string</span><span
class="method-args">(the_object=nil,encoding=::Encoding.default_external,conversion_options={})</span>
<span class="method-click-advice">click to toggle source</span>
</div>
<div class="method-description">
<div class="method-source-code" id="convert_to_string-source">
<pre><span class="ruby-comment"># File lib/gxg/gxg_transcode.rb, line 214</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">convert_to_string</span>(<span class="ruby-identifier">the_object</span>=<span class="ruby-keyword">nil</span>,<span class="ruby-identifier">encoding</span>=<span class="ruby-operator">::</span><span class="ruby-constant">Encoding</span>.<span class="ruby-identifier">default_external</span>,<span class="ruby-identifier">conversion_options</span>={})
<span class="ruby-comment"># return the supplied string, or supported object string data, or UTF_8 codepoint, un-transcoded</span>
<span class="ruby-comment"># encoding is used for when a byte value integer is passed to know what encoding to set.</span>
<span class="ruby-identifier">the_string</span> = <span class="ruby-string">&quot;&quot;</span>
<span class="ruby-identifier">the_string</span>.<span class="ruby-identifier">force_encoding</span>(<span class="ruby-identifier">encoding</span> <span class="ruby-operator">||</span> <span class="ruby-operator">::</span><span class="ruby-constant">Encoding</span>.<span class="ruby-identifier">default_external</span>)
<span class="ruby-keyword">if</span> <span class="ruby-identifier">the_object</span>
<span class="ruby-keyword">if</span> <span class="ruby-identifier">the_object</span>.<span class="ruby-identifier">is_a?</span>(<span class="ruby-operator">::</span><span class="ruby-constant">Array</span>)
<span class="ruby-identifier">dataset</span> = <span class="ruby-identifier">the_object</span>.<span class="ruby-identifier">flatten</span>
<span class="ruby-keyword">else</span>
<span class="ruby-identifier">dataset</span> = [(<span class="ruby-identifier">the_object</span>)]
<span class="ruby-keyword">end</span>
<span class="ruby-identifier">dataset</span>.<span class="ruby-identifier">to_enum</span>(<span class="ruby-value">:each</span>).<span class="ruby-identifier">each</span> <span class="ruby-keyword">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">object</span><span class="ruby-operator">|</span>
<span class="ruby-identifier">buffer</span> = <span class="ruby-string">&quot;&quot;</span>
<span class="ruby-keyword">if</span> <span class="ruby-identifier">object</span>.<span class="ruby-identifier">is_a?</span>(<span class="ruby-operator">::</span><span class="ruby-constant">String</span>)
<span class="ruby-comment"># find the string content of these classes and pass them for transcoding: Numeric, String, ::IO via gets, ::StringIO via gets, ::GxG::ByteArray</span>
<span class="ruby-identifier">buffer</span> = <span class="ruby-identifier">object</span>.<span class="ruby-identifier">dup</span>
<span class="ruby-keyword">else</span>
<span class="ruby-keyword">if</span> <span class="ruby-identifier">object</span>.<span class="ruby-identifier">is_any?</span>(<span class="ruby-operator">::</span><span class="ruby-constant">IO</span>, <span class="ruby-operator">::</span><span class="ruby-constant">StringIO</span>)
<span class="ruby-comment"># Note: what issues arise when the_object is in binary mode? Also, how does this scale to very large things or files?</span>
<span class="ruby-identifier">buffer</span> = <span class="ruby-identifier">object</span>.<span class="ruby-identifier">gets</span>().<span class="ruby-identifier">to_s</span>
<span class="ruby-keyword">end</span>
<span class="ruby-keyword">if</span> <span class="ruby-identifier">object</span>.<span class="ruby-identifier">is_any?</span>(<span class="ruby-operator">::</span><span class="ruby-constant">GxG</span><span class="ruby-operator">::</span><span class="ruby-constant">ByteArray</span>)
<span class="ruby-identifier">buffer</span> = <span class="ruby-identifier">object</span>.<span class="ruby-identifier">to_s</span>
<span class="ruby-keyword">end</span>
<span class="ruby-keyword">if</span> <span class="ruby-identifier">object</span>.<span class="ruby-identifier">is_a?</span>(<span class="ruby-operator">::</span><span class="ruby-constant">Numeric</span>)
<span class="ruby-keyword">if</span> <span class="ruby-identifier">object</span>.<span class="ruby-identifier">to_i</span> <span class="ruby-operator">&gt;=</span> <span class="ruby-value">0</span>
<span class="ruby-identifier">data</span> = <span class="ruby-string">&quot;&quot;</span>
<span class="ruby-keyword">if</span> (<span class="ruby-value">0xFFFFFFFF</span> <span class="ruby-operator">&amp;&amp;</span> <span class="ruby-identifier">object</span>.<span class="ruby-identifier">to_i</span>) <span class="ruby-operator">&gt;</span> <span class="ruby-value">255</span>
<span class="ruby-comment"># interprets as unicode code point</span>
<span class="ruby-identifier">data</span>.<span class="ruby-identifier">force_encoding</span>(<span class="ruby-operator">::</span><span class="ruby-constant">Encoding</span><span class="ruby-operator">::</span><span class="ruby-constant">UTF_8</span>)
<span class="ruby-keyword">else</span>
<span class="ruby-comment"># interprets as a char value in its own encoding, no transcoding needed.</span>
<span class="ruby-identifier">data</span>.<span class="ruby-identifier">force_encoding</span>(<span class="ruby-identifier">encoding</span> <span class="ruby-operator">||</span> <span class="ruby-operator">::</span><span class="ruby-constant">Encoding</span>.<span class="ruby-identifier">default_external</span>)
<span class="ruby-keyword">end</span>
<span class="ruby-identifier">buffer</span> = (<span class="ruby-identifier">data</span> <span class="ruby-operator">&lt;&lt;</span> <span class="ruby-identifier">object</span>.<span class="ruby-identifier">to_i</span>)
<span class="ruby-identifier">data</span> = <span class="ruby-keyword">nil</span>
<span class="ruby-keyword">else</span>
<span class="ruby-comment"># signed integers not supported for char values or codepoints at this time.</span>
<span class="ruby-keyword">end</span>
<span class="ruby-keyword">end</span>
<span class="ruby-keyword">end</span>
<span class="ruby-comment">#</span>
<span class="ruby-keyword">if</span> <span class="ruby-identifier">buffer</span>.<span class="ruby-identifier">size</span> <span class="ruby-operator">&gt;</span> <span class="ruby-value">0</span>
<span class="ruby-keyword">if</span> (<span class="ruby-identifier">buffer</span>.<span class="ruby-identifier">encoding</span> <span class="ruby-operator">==</span> (<span class="ruby-identifier">encoding</span> <span class="ruby-operator">||</span> <span class="ruby-operator">::</span><span class="ruby-constant">Encoding</span>.<span class="ruby-identifier">default_external</span>) <span class="ruby-operator">&amp;&amp;</span> <span class="ruby-operator">!</span> <span class="ruby-keyword">self</span>.<span class="ruby-identifier">binmode?</span>())
<span class="ruby-identifier">the_string</span> <span class="ruby-operator">&lt;&lt;</span> <span class="ruby-identifier">buffer</span>
<span class="ruby-keyword">else</span>
<span class="ruby-comment"># ::String::transcode_options((encoding || ::Encoding.default_external),buffer.encoding, (conversion_options || {}))</span>
<span class="ruby-keyword">if</span> <span class="ruby-keyword">self</span>.<span class="ruby-identifier">binmode?</span>()
<span class="ruby-identifier">buffer</span>.<span class="ruby-identifier">to_enum</span>(<span class="ruby-value">:chars</span>).<span class="ruby-identifier">each</span> <span class="ruby-keyword">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">the_char</span><span class="ruby-operator">|</span>
<span class="ruby-identifier">the_char</span>.<span class="ruby-identifier">to_enum</span>(<span class="ruby-value">:bytes</span>).<span class="ruby-identifier">each</span> <span class="ruby-keyword">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">the_byte</span><span class="ruby-operator">|</span>
<span class="ruby-identifier">the_string</span> <span class="ruby-operator">&lt;&lt;</span> <span class="ruby-identifier">the_byte</span>
<span class="ruby-keyword">end</span>
<span class="ruby-keyword">end</span>
<span class="ruby-keyword">else</span>
<span class="ruby-identifier">nl_op</span> = <span class="ruby-keyword">self</span>.<span class="ruby-identifier">newline_option_used</span>(<span class="ruby-identifier">conversion_options</span>)
<span class="ruby-identifier">options</span> = {}
<span class="ruby-keyword">if</span> <span class="ruby-identifier">nl_op</span>
<span class="ruby-identifier">options</span>[(<span class="ruby-identifier">nl_op</span>)] = <span class="ruby-keyword">true</span>
<span class="ruby-keyword">end</span>
<span class="ruby-comment">#</span>
<span class="ruby-identifier">the_string</span> <span class="ruby-operator">&lt;&lt;</span> <span class="ruby-identifier">buffer</span>.<span class="ruby-identifier">transcode!</span>((<span class="ruby-identifier">encoding</span> <span class="ruby-operator">||</span> <span class="ruby-operator">::</span><span class="ruby-constant">Encoding</span>.<span class="ruby-identifier">default_external</span>),<span class="ruby-identifier">options</span>)
<span class="ruby-keyword">end</span>
<span class="ruby-keyword">end</span>
<span class="ruby-keyword">end</span>
<span class="ruby-comment">#</span>
<span class="ruby-keyword">end</span>
<span class="ruby-keyword">end</span>
<span class="ruby-comment">#</span>
<span class="ruby-identifier">the_string</span>
<span class="ruby-keyword">end</span></pre>
</div>
</div>
</div>
<div id="method-i-field_separator_used" class="method-detail ">
<div class="method-heading">
<span class="method-name">field_separator_used</span><span
class="method-args">(io_channel=:external)</span>
<span class="method-click-advice">click to toggle source</span>
</div>
<div class="method-description">
<div class="method-source-code" id="field_separator_used-source">
<pre><span class="ruby-comment"># File lib/gxg/gxg_transcode.rb, line 162</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">field_separator_used</span>(<span class="ruby-identifier">io_channel</span>=<span class="ruby-value">:external</span>)
<span class="ruby-keyword">unless</span> <span class="ruby-keyword">self</span>.<span class="ruby-identifier">instance_variable_defined?</span>(<span class="ruby-value">:@internal_encoding</span>)
<span class="ruby-ivar">@internal_encoding</span> = <span class="ruby-keyword">nil</span>
<span class="ruby-keyword">end</span>
<span class="ruby-keyword">unless</span> <span class="ruby-keyword">self</span>.<span class="ruby-identifier">instance_variable_defined?</span>(<span class="ruby-value">:@internal_field_separator</span>)
<span class="ruby-ivar">@internal_field_separator</span> = <span class="ruby-keyword">nil</span>
<span class="ruby-keyword">end</span>
<span class="ruby-keyword">unless</span> <span class="ruby-keyword">self</span>.<span class="ruby-identifier">instance_variable_defined?</span>(<span class="ruby-value">:@external_field_separator</span>)
<span class="ruby-ivar">@external_field_separator</span> = <span class="ruby-keyword">nil</span>
<span class="ruby-keyword">end</span>
<span class="ruby-identifier">field_separator</span> = <span class="ruby-string">&quot;&quot;</span>
<span class="ruby-keyword">if</span> <span class="ruby-identifier">io_channel</span> <span class="ruby-operator">==</span> <span class="ruby-value">:internal</span>
<span class="ruby-identifier">field_separator</span>.<span class="ruby-identifier">force_encoding</span>((<span class="ruby-ivar">@internal_encoding</span> <span class="ruby-operator">||</span> <span class="ruby-keyword">self</span>.<span class="ruby-identifier">external_encoding</span>))
<span class="ruby-identifier">field_separator</span> <span class="ruby-operator">&lt;&lt;</span> (<span class="ruby-ivar">@internal_field_separator</span> <span class="ruby-operator">||</span> (<span class="ruby-identifier">$,</span>).<span class="ruby-identifier">to_s</span>)
<span class="ruby-keyword">else</span>
<span class="ruby-identifier">io_channel</span> = <span class="ruby-value">:external</span>
<span class="ruby-identifier">field_separator</span>.<span class="ruby-identifier">force_encoding</span>(<span class="ruby-keyword">self</span>.<span class="ruby-identifier">external_encoding</span>)
<span class="ruby-identifier">field_separator</span> <span class="ruby-operator">&lt;&lt;</span> (<span class="ruby-ivar">@external_field_separator</span> <span class="ruby-operator">||</span> (<span class="ruby-identifier">$,</span>).<span class="ruby-identifier">to_s</span>)
<span class="ruby-keyword">end</span>
<span class="ruby-keyword">if</span> <span class="ruby-identifier">field_separator</span>.<span class="ruby-identifier">size</span> <span class="ruby-operator">&gt;</span> <span class="ruby-value">0</span>
<span class="ruby-identifier">field_separator</span>
<span class="ruby-keyword">else</span>
<span class="ruby-keyword">nil</span>
<span class="ruby-keyword">end</span>
<span class="ruby-keyword">end</span></pre>
</div>
</div>
</div>
<div id="method-i-newline_option_used" class="method-detail ">
<div class="method-heading">
<span class="method-name">newline_option_used</span><span
class="method-args">(io_channel=:external)</span>
<span class="method-click-advice">click to toggle source</span>
</div>
<div class="method-description">
<div class="method-source-code" id="newline_option_used-source">
<pre><span class="ruby-comment"># File lib/gxg/gxg_transcode.rb, line 103</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">newline_option_used</span>(<span class="ruby-identifier">io_channel</span>=<span class="ruby-value">:external</span>)
<span class="ruby-keyword">unless</span> <span class="ruby-keyword">self</span>.<span class="ruby-identifier">instance_variable_defined?</span>(<span class="ruby-value">:@conversion_options</span>)
<span class="ruby-ivar">@conversion_options</span> = {<span class="ruby-value">:internal</span> <span class="ruby-operator">=&gt;</span> {}, <span class="ruby-value">:external</span> <span class="ruby-operator">=&gt;</span> {}}
<span class="ruby-keyword">end</span>
<span class="ruby-comment"># determine the correct new_line trancoding option used</span>
<span class="ruby-keyword">if</span> <span class="ruby-identifier">io_channel</span>.<span class="ruby-identifier">is_a?</span>(<span class="ruby-operator">::</span><span class="ruby-constant">Hash</span>)
<span class="ruby-identifier">options</span> = <span class="ruby-identifier">io_channel</span>
<span class="ruby-keyword">else</span>
<span class="ruby-identifier">options</span> = (<span class="ruby-ivar">@conversion_options</span>[(<span class="ruby-identifier">io_channel</span>.<span class="ruby-identifier">to_sym</span>)] <span class="ruby-operator">||</span> {})
<span class="ruby-keyword">end</span>
<span class="ruby-keyword">if</span> <span class="ruby-identifier">options</span>[<span class="ruby-value">:cr_newline</span>]
<span class="ruby-value">:cr_newline</span>
<span class="ruby-keyword">else</span>
<span class="ruby-keyword">if</span> <span class="ruby-identifier">options</span>[<span class="ruby-value">:crlf_newline</span>]
<span class="ruby-value">:crlf_newline</span>
<span class="ruby-keyword">else</span>
<span class="ruby-keyword">if</span> <span class="ruby-identifier">options</span>[<span class="ruby-value">:universal_newline</span>]
<span class="ruby-value">:universal_newline</span>
<span class="ruby-keyword">else</span>
<span class="ruby-comment"># use nil if none specified</span>
<span class="ruby-keyword">nil</span>
<span class="ruby-keyword">end</span>
<span class="ruby-keyword">end</span>
<span class="ruby-keyword">end</span>
<span class="ruby-comment">#</span>
<span class="ruby-keyword">end</span></pre>
</div>
</div>
</div>
<div id="method-i-newline_used" class="method-detail ">
<div class="method-heading">
<span class="method-name">newline_used</span><span
class="method-args">(io_channel=:external)</span>
<span class="method-click-advice">click to toggle source</span>
</div>
<div class="method-description">
<div class="method-source-code" id="newline_used-source">
<pre><span class="ruby-comment"># File lib/gxg/gxg_transcode.rb, line 130</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">newline_used</span>(<span class="ruby-identifier">io_channel</span>=<span class="ruby-value">:external</span>)
<span class="ruby-keyword">unless</span> <span class="ruby-keyword">self</span>.<span class="ruby-identifier">instance_variable_defined?</span>(<span class="ruby-value">:@conversion_options</span>)
<span class="ruby-ivar">@conversion_options</span> = {<span class="ruby-value">:internal</span> <span class="ruby-operator">=&gt;</span> {}, <span class="ruby-value">:external</span> <span class="ruby-operator">=&gt;</span> {}}
<span class="ruby-keyword">end</span>
<span class="ruby-keyword">unless</span> <span class="ruby-keyword">self</span>.<span class="ruby-identifier">instance_variable_defined?</span>(<span class="ruby-value">:@internal_encoding</span>)
<span class="ruby-ivar">@internal_encoding</span> = <span class="ruby-keyword">nil</span>
<span class="ruby-keyword">end</span>
<span class="ruby-identifier">newline</span> = <span class="ruby-string">&quot;&quot;</span>
<span class="ruby-keyword">if</span> <span class="ruby-identifier">io_channel</span> <span class="ruby-operator">==</span> <span class="ruby-value">:internal</span>
<span class="ruby-identifier">newline</span>.<span class="ruby-identifier">force_encoding</span>((<span class="ruby-ivar">@internal_encoding</span> <span class="ruby-operator">||</span> <span class="ruby-keyword">self</span>.<span class="ruby-identifier">external_encoding</span>))
<span class="ruby-keyword">else</span>
<span class="ruby-identifier">io_channel</span> = <span class="ruby-value">:external</span>
<span class="ruby-identifier">newline</span>.<span class="ruby-identifier">force_encoding</span>(<span class="ruby-keyword">self</span>.<span class="ruby-identifier">external_encoding</span>)
<span class="ruby-keyword">end</span>
<span class="ruby-comment"># determine the correct new_line_separator</span>
<span class="ruby-keyword">if</span> <span class="ruby-ivar">@conversion_options</span>[(<span class="ruby-identifier">io_channel</span>)][<span class="ruby-value">:cr_newline</span>]
<span class="ruby-identifier">newline</span> <span class="ruby-operator">&lt;&lt;</span> <span class="ruby-string">&quot;\r&quot;</span>
<span class="ruby-keyword">else</span>
<span class="ruby-keyword">if</span> <span class="ruby-ivar">@conversion_options</span>[(<span class="ruby-identifier">io_channel</span>)][<span class="ruby-value">:crlf_newline</span>]
<span class="ruby-identifier">newline</span> <span class="ruby-operator">&lt;&lt;</span> <span class="ruby-string">&quot;\r\n&quot;</span>
<span class="ruby-keyword">else</span>
<span class="ruby-keyword">if</span> <span class="ruby-ivar">@conversion_options</span>[(<span class="ruby-identifier">io_channel</span>)][<span class="ruby-value">:universal_newline</span>]
<span class="ruby-identifier">newline</span> <span class="ruby-operator">&lt;&lt;</span> <span class="ruby-string">&quot;\n&quot;</span>
<span class="ruby-keyword">else</span>
<span class="ruby-comment"># use global default if none specified</span>
<span class="ruby-identifier">newline</span> <span class="ruby-operator">&lt;&lt;</span> <span class="ruby-identifier">$/</span>
<span class="ruby-keyword">end</span>
<span class="ruby-keyword">end</span>
<span class="ruby-keyword">end</span>
<span class="ruby-identifier">newline</span>
<span class="ruby-keyword">end</span></pre>
</div>
</div>
</div>
<div id="method-i-prepare_conversion_options" class="method-detail ">
<div class="method-heading">
<span class="method-name">prepare_conversion_options</span><span
class="method-args">(options={})</span>
<span class="method-click-advice">click to toggle source</span>
</div>
<div class="method-description">
<p>Instance Methods</p>
<div class="method-source-code" id="prepare_conversion_options-source">
<pre><span class="ruby-comment"># File lib/gxg/gxg_transcode.rb, line 8</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">prepare_conversion_options</span>(<span class="ruby-identifier">options</span>={})
<span class="ruby-comment"># obsoleted by ::String::transcode_options</span>
<span class="ruby-keyword">unless</span> <span class="ruby-identifier">options</span>.<span class="ruby-identifier">is_a?</span>(<span class="ruby-operator">::</span><span class="ruby-constant">Hash</span>)
<span class="ruby-identifier">raise</span> <span class="ruby-constant">ArgumentError</span>, <span class="ruby-string">&quot;You must pass conversion options parameter as a Hash&quot;</span>
<span class="ruby-keyword">end</span>
<span class="ruby-comment">#</span>
<span class="ruby-identifier">new_options</span> = {}
<span class="ruby-comment">#</span>
<span class="ruby-identifier">valid_options</span> = [<span class="ruby-value">:invalid</span>,<span class="ruby-value">:undef</span>,<span class="ruby-value">:replace</span>,<span class="ruby-value">:fallback</span>,<span class="ruby-value">:xml</span>,<span class="ruby-value">:cr_newline</span>,<span class="ruby-value">:crlf_newline</span>,<span class="ruby-value">:universal_newline</span>]
<span class="ruby-comment">#</span>
<span class="ruby-keyword">for</span> <span class="ruby-identifier">the_option_key</span> <span class="ruby-keyword">in</span> <span class="ruby-identifier">valid_options</span>
<span class="ruby-comment">#</span>
<span class="ruby-keyword">if</span> <span class="ruby-identifier">options</span>[(<span class="ruby-identifier">the_option_key</span>)]
<span class="ruby-comment"># Note Source: http://ruby-doc.org/core-1.9.3/String.html#method-i-encode</span>
<span class="ruby-keyword">if</span> <span class="ruby-identifier">the_option_key</span> <span class="ruby-operator">==</span> <span class="ruby-value">:fallback</span>
<span class="ruby-comment"># Sets the replacement string by the given object for undefined character. The object should be a Hash, a Proc, a Method,</span>
<span class="ruby-comment"># or an object which has [] method. Its key is an undefined character encoded in the source encoding of current transcoder.</span>
<span class="ruby-comment"># Its value can be any encoding until it can be converted into the destination encoding of the transcoder.</span>
<span class="ruby-keyword">unless</span> <span class="ruby-identifier">new_options</span>[<span class="ruby-value">:replace</span>]
<span class="ruby-keyword">if</span> (<span class="ruby-identifier">options</span>[<span class="ruby-value">:fallback</span>].<span class="ruby-identifier">is_any?</span>(<span class="ruby-operator">::</span><span class="ruby-constant">Hash</span>, <span class="ruby-operator">::</span><span class="ruby-constant">Struct</span>, <span class="ruby-operator">::</span><span class="ruby-constant">Proc</span>, <span class="ruby-operator">::</span><span class="ruby-constant">Method</span>) <span class="ruby-operator">||</span> <span class="ruby-identifier">options</span>[<span class="ruby-value">:fallback</span>].<span class="ruby-identifier">respond_to?</span>(<span class="ruby-value">:[]</span>))
<span class="ruby-comment"># if :fallback will not process an Array as mentioned above ... remove :[] respond_to? condition.</span>
<span class="ruby-identifier">new_options</span>[<span class="ruby-value">:fallback</span>] = <span class="ruby-identifier">options</span>[<span class="ruby-value">:fallback</span>]
<span class="ruby-keyword">end</span>
<span class="ruby-keyword">end</span>
<span class="ruby-keyword">end</span>
<span class="ruby-comment">#</span>
<span class="ruby-keyword">if</span> <span class="ruby-identifier">the_option_key</span> <span class="ruby-operator">==</span> <span class="ruby-value">:invalid</span>
<span class="ruby-comment"># If the value is :replace, encode replaces invalid byte sequences in str with the replacement character. The default is to</span>
<span class="ruby-comment"># raise the Encoding::InvalidByteSequenceError exception</span>
<span class="ruby-keyword">unless</span> <span class="ruby-identifier">new_options</span>[<span class="ruby-value">:fallback</span>]
<span class="ruby-keyword">if</span> <span class="ruby-identifier">options</span>[<span class="ruby-value">:invalid</span>] <span class="ruby-operator">==</span> <span class="ruby-value">:replace</span>
<span class="ruby-identifier">new_options</span>[<span class="ruby-value">:invalid</span>] = <span class="ruby-value">:replace</span>
<span class="ruby-keyword">end</span>
<span class="ruby-keyword">end</span>
<span class="ruby-keyword">end</span>
<span class="ruby-comment">#</span>
<span class="ruby-keyword">if</span> (<span class="ruby-identifier">the_option_key</span> <span class="ruby-operator">==</span> <span class="ruby-value">:undef</span>)
<span class="ruby-comment"># If the value is :replace, encode replaces characters which are undefined in the destination encoding with the replacement character.</span>
<span class="ruby-comment"># The default is to raise the Encoding::UndefinedConversionError.</span>
<span class="ruby-keyword">unless</span> <span class="ruby-identifier">new_options</span>[<span class="ruby-value">:fallback</span>]
<span class="ruby-keyword">if</span> <span class="ruby-identifier">options</span>[<span class="ruby-value">:undef</span>] <span class="ruby-operator">==</span> <span class="ruby-value">:replace</span>
<span class="ruby-identifier">new_options</span>[<span class="ruby-value">:undef</span>] = <span class="ruby-value">:replace</span>
<span class="ruby-keyword">end</span>
<span class="ruby-keyword">end</span>
<span class="ruby-keyword">end</span>
<span class="ruby-keyword">if</span> (<span class="ruby-identifier">the_option_key</span> <span class="ruby-operator">==</span> <span class="ruby-value">:replace</span>)
<span class="ruby-comment"># Sets the replacement string to the given value. The default replacement string is “uFFFD” for Unicode encoding forms, and “?” otherwise.</span>
<span class="ruby-keyword">unless</span> <span class="ruby-identifier">new_options</span>[<span class="ruby-value">:fallback</span>]
<span class="ruby-keyword">if</span> <span class="ruby-identifier">options</span>[<span class="ruby-value">:replace</span>].<span class="ruby-identifier">is_a?</span>(<span class="ruby-operator">::</span><span class="ruby-constant">String</span>)
<span class="ruby-identifier">new_options</span>[<span class="ruby-value">:replace</span>] = <span class="ruby-identifier">options</span>[<span class="ruby-value">:replace</span>]
<span class="ruby-keyword">end</span>
<span class="ruby-keyword">end</span>
<span class="ruby-keyword">end</span>
<span class="ruby-keyword">if</span> <span class="ruby-identifier">the_option_key</span> <span class="ruby-operator">==</span> <span class="ruby-value">:xml</span>
<span class="ruby-comment"># The value must be :text or :attr. If the value is :text encode replaces undefined characters with their (upper-case hexadecimal) numeric character</span>
<span class="ruby-comment"># references. ‘&amp;’, ‘&lt;’, and ‘&gt;’ are converted to “&amp;amp;”, “&amp;lt;”, and “&amp;gt;”, respectively. If the value is :attr, encode also quotes the replacement</span>
<span class="ruby-comment"># result (using ‘“’), and replaces ‘”’ with “&amp;quot;”.</span>
<span class="ruby-keyword">if</span> [<span class="ruby-value">:text</span>, <span class="ruby-value">:attr</span>].<span class="ruby-identifier">include?</span>(<span class="ruby-identifier">options</span>[<span class="ruby-value">:xml</span>])
<span class="ruby-identifier">new_options</span>[<span class="ruby-value">:xml</span>] = <span class="ruby-identifier">options</span>[<span class="ruby-value">:xml</span>]
<span class="ruby-keyword">end</span>
<span class="ruby-keyword">end</span>
<span class="ruby-keyword">if</span> <span class="ruby-identifier">the_option_key</span> <span class="ruby-operator">==</span> <span class="ruby-value">:cr_newline</span>
<span class="ruby-comment"># Replaces LF (“n”) with CR (“r”) if value is true.</span>
<span class="ruby-keyword">unless</span> (<span class="ruby-identifier">new_options</span>[<span class="ruby-value">:crlf_newline</span>] <span class="ruby-operator">||</span> <span class="ruby-identifier">new_options</span>[<span class="ruby-value">:universal_newline</span>])
<span class="ruby-keyword">if</span> <span class="ruby-identifier">options</span>[(<span class="ruby-identifier">the_option_key</span>)] <span class="ruby-operator">==</span> <span class="ruby-keyword">true</span>
<span class="ruby-identifier">new_options</span>[(<span class="ruby-identifier">the_option_key</span>)] = <span class="ruby-keyword">true</span>
<span class="ruby-keyword">end</span>
<span class="ruby-keyword">end</span>
<span class="ruby-keyword">end</span>
<span class="ruby-comment">#</span>
<span class="ruby-keyword">if</span> <span class="ruby-identifier">the_option_key</span> <span class="ruby-operator">==</span> <span class="ruby-value">:crlf_newline</span>
<span class="ruby-comment"># Replaces LF (“n”) with CRLF (“rn”) if value is true.</span>
<span class="ruby-keyword">unless</span> (<span class="ruby-identifier">new_options</span>[<span class="ruby-value">:cr_newline</span>] <span class="ruby-operator">||</span> <span class="ruby-identifier">new_options</span>[<span class="ruby-value">:universal_newline</span>])
<span class="ruby-keyword">if</span> <span class="ruby-identifier">options</span>[(<span class="ruby-identifier">the_option_key</span>)] <span class="ruby-operator">==</span> <span class="ruby-keyword">true</span>
<span class="ruby-identifier">new_options</span>[(<span class="ruby-identifier">the_option_key</span>)] = <span class="ruby-keyword">true</span>
<span class="ruby-keyword">end</span>
<span class="ruby-keyword">end</span>
<span class="ruby-keyword">end</span>
<span class="ruby-comment">#</span>
<span class="ruby-keyword">if</span> <span class="ruby-identifier">the_option_key</span> <span class="ruby-operator">==</span> <span class="ruby-value">:universal_newline</span>
<span class="ruby-comment"># Replaces CRLF (“rn”) and CR (“r”) with LF (“n”) if value is true.</span>
<span class="ruby-keyword">unless</span> (<span class="ruby-identifier">new_options</span>[<span class="ruby-value">:cr_newline</span>] <span class="ruby-operator">||</span> <span class="ruby-identifier">new_options</span>[<span class="ruby-value">:crlf_newline</span>])
<span class="ruby-keyword">if</span> <span class="ruby-identifier">options</span>[(<span class="ruby-identifier">the_option_key</span>)] <span class="ruby-operator">==</span> <span class="ruby-keyword">true</span>
<span class="ruby-identifier">new_options</span>[(<span class="ruby-identifier">the_option_key</span>)] = <span class="ruby-keyword">true</span>
<span class="ruby-keyword">end</span>
<span class="ruby-keyword">end</span>
<span class="ruby-keyword">end</span>
<span class="ruby-comment">#</span>
<span class="ruby-keyword">end</span>
<span class="ruby-comment">#</span>
<span class="ruby-identifier">pause</span>
<span class="ruby-keyword">end</span>
<span class="ruby-identifier">new_options</span>
<span class="ruby-keyword">end</span></pre>
</div>
</div>
</div>
<div id="method-i-record_separator_used" class="method-detail ">
<div class="method-heading">
<span class="method-name">record_separator_used</span><span
class="method-args">(io_channel=:external)</span>
<span class="method-click-advice">click to toggle source</span>
</div>
<div class="method-description">
<div class="method-source-code" id="record_separator_used-source">
<pre><span class="ruby-comment"># File lib/gxg/gxg_transcode.rb, line 188</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">record_separator_used</span>(<span class="ruby-identifier">io_channel</span>=<span class="ruby-value">:external</span>)
<span class="ruby-keyword">unless</span> <span class="ruby-keyword">self</span>.<span class="ruby-identifier">instance_variable_defined?</span>(<span class="ruby-value">:@internal_encoding</span>)
<span class="ruby-ivar">@internal_encoding</span> = <span class="ruby-keyword">nil</span>
<span class="ruby-keyword">end</span>
<span class="ruby-keyword">unless</span> <span class="ruby-keyword">self</span>.<span class="ruby-identifier">instance_variable_defined?</span>(<span class="ruby-value">:@internal_record_separator</span>)
<span class="ruby-ivar">@internal_record_separator</span> = <span class="ruby-keyword">nil</span>
<span class="ruby-keyword">end</span>
<span class="ruby-keyword">unless</span> <span class="ruby-keyword">self</span>.<span class="ruby-identifier">instance_variable_defined?</span>(<span class="ruby-value">:@external_record_separator</span>)
<span class="ruby-ivar">@external_record_separator</span> = <span class="ruby-keyword">nil</span>
<span class="ruby-keyword">end</span>
<span class="ruby-identifier">record_separator</span> = <span class="ruby-string">&quot;&quot;</span>
<span class="ruby-keyword">if</span> <span class="ruby-identifier">io_channel</span> <span class="ruby-operator">==</span> <span class="ruby-value">:internal</span>
<span class="ruby-identifier">record_separator</span>.<span class="ruby-identifier">force_encoding</span>((<span class="ruby-ivar">@internal_encoding</span> <span class="ruby-operator">||</span> <span class="ruby-keyword">self</span>.<span class="ruby-identifier">external_encoding</span>))
<span class="ruby-identifier">record_separator</span> <span class="ruby-operator">&lt;&lt;</span> (<span class="ruby-ivar">@internal_record_separator</span> <span class="ruby-operator">||</span> (<span class="ruby-identifier">$\</span>).<span class="ruby-identifier">to_s</span>)
<span class="ruby-keyword">else</span>
<span class="ruby-identifier">io_channel</span> = <span class="ruby-value">:external</span>
<span class="ruby-identifier">record_separator</span>.<span class="ruby-identifier">force_encoding</span>(<span class="ruby-keyword">self</span>.<span class="ruby-identifier">external_encoding</span>)
<span class="ruby-identifier">record_separator</span> <span class="ruby-operator">&lt;&lt;</span> (<span class="ruby-ivar">@external_record_separator</span> <span class="ruby-operator">||</span> (<span class="ruby-identifier">$\</span>).<span class="ruby-identifier">to_s</span>)
<span class="ruby-keyword">end</span>
<span class="ruby-keyword">if</span> <span class="ruby-identifier">record_separator</span>.<span class="ruby-identifier">size</span> <span class="ruby-operator">&gt;</span> <span class="ruby-value">0</span>
<span class="ruby-identifier">record_separator</span>
<span class="ruby-keyword">else</span>
<span class="ruby-keyword">nil</span>
<span class="ruby-keyword">end</span>
<span class="ruby-keyword">end</span></pre>
</div>
</div>
</div>
<div id="method-i-transcode_to_external" class="method-detail ">
<div class="method-heading">
<span class="method-name">transcode_to_external</span><span
class="method-args">(the_string=&quot;&quot;)</span>
<span class="method-click-advice">click to toggle source</span>
</div>
<div class="method-description">
<p>TODO: GxG::StringIO : transcoding methods : tie into conversion-options-set-selector supports (dst-encoding,src-encoding). <a href="../../../Hash.html"><code>Hash</code></a> deep-merge method needed.</p>
<div class="method-source-code" id="transcode_to_external-source">
<pre><span class="ruby-comment"># File lib/gxg/gxg_transcode.rb, line 287</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">transcode_to_external</span>(<span class="ruby-identifier">the_string</span>=<span class="ruby-string">&quot;&quot;</span>)
<span class="ruby-comment"># return the supplied string, or supported object string data, or UTF_8 codepoint, transcoded</span>
<span class="ruby-keyword">unless</span> <span class="ruby-keyword">self</span>.<span class="ruby-identifier">instance_variable_defined?</span>(<span class="ruby-value">:@conversion_options</span>)
<span class="ruby-ivar">@conversion_options</span> = {<span class="ruby-value">:internal</span> <span class="ruby-operator">=&gt;</span> {}, <span class="ruby-value">:external</span> <span class="ruby-operator">=&gt;</span> {}}
<span class="ruby-keyword">end</span>
<span class="ruby-keyword">unless</span> <span class="ruby-keyword">self</span>.<span class="ruby-identifier">instance_variable_defined?</span>(<span class="ruby-value">:@internal_encoding</span>)
<span class="ruby-ivar">@internal_encoding</span> = <span class="ruby-keyword">nil</span>
<span class="ruby-keyword">end</span>
<span class="ruby-comment">#</span>
<span class="ruby-keyword">unless</span> <span class="ruby-identifier">the_string</span>.<span class="ruby-identifier">is_a?</span>(<span class="ruby-operator">::</span><span class="ruby-constant">String</span>)
<span class="ruby-comment"># External conversion options will have to be dynamically generated upon transcode_to_external as *any* encoding is possible, not just internal_encoding</span>
<span class="ruby-identifier">the_string</span> = <span class="ruby-keyword">self</span>.<span class="ruby-identifier">convert_to_string</span>(<span class="ruby-identifier">the_string</span>,<span class="ruby-keyword">self</span>.<span class="ruby-identifier">external_encoding</span>,<span class="ruby-ivar">@conversion_options</span>[<span class="ruby-value">:external</span>])
<span class="ruby-keyword">end</span>
<span class="ruby-keyword">if</span> <span class="ruby-identifier">the_string</span>.<span class="ruby-identifier">size</span> <span class="ruby-operator">&gt;</span> <span class="ruby-value">0</span>
<span class="ruby-keyword">if</span> <span class="ruby-keyword">self</span>.<span class="ruby-identifier">binmode?</span>()
<span class="ruby-identifier">the_string</span>.<span class="ruby-identifier">force_encoding</span>(<span class="ruby-operator">::</span><span class="ruby-constant">Encoding</span><span class="ruby-operator">::</span><span class="ruby-constant">ASCII_8BIT</span>)
<span class="ruby-keyword">else</span>
<span class="ruby-keyword">if</span> (<span class="ruby-identifier">the_string</span>.<span class="ruby-identifier">encoding</span> <span class="ruby-operator">!=</span> <span class="ruby-keyword">self</span>.<span class="ruby-identifier">external_encoding</span>)
<span class="ruby-keyword">if</span> <span class="ruby-identifier">the_string</span>.<span class="ruby-identifier">encoding</span> <span class="ruby-operator">==</span> <span class="ruby-ivar">@internal_encoding</span>
<span class="ruby-identifier">options</span> = <span class="ruby-operator">::</span><span class="ruby-constant">String</span><span class="ruby-operator">::</span><span class="ruby-identifier">transcode_options</span>(<span class="ruby-keyword">self</span>.<span class="ruby-identifier">external_encoding</span>,<span class="ruby-identifier">the_string</span>.<span class="ruby-identifier">encoding</span>,<span class="ruby-ivar">@conversion_options</span>[<span class="ruby-value">:external</span>])
<span class="ruby-keyword">else</span>
<span class="ruby-comment"># External conversion options will have to be dynamically generated upon transcode_to_external as *any* encoding is possible, not just internal_encoding</span>
<span class="ruby-identifier">nl_op</span> = <span class="ruby-keyword">self</span>.<span class="ruby-identifier">newline_option_used</span>(<span class="ruby-value">:external</span>)
<span class="ruby-identifier">options</span> = {}
<span class="ruby-keyword">if</span> <span class="ruby-identifier">nl_op</span>
<span class="ruby-identifier">options</span>[(<span class="ruby-identifier">nl_op</span>)] = <span class="ruby-keyword">true</span>
<span class="ruby-keyword">end</span>
<span class="ruby-identifier">options</span> = <span class="ruby-operator">::</span><span class="ruby-constant">String</span><span class="ruby-operator">::</span><span class="ruby-identifier">transcode_options</span>(<span class="ruby-keyword">self</span>.<span class="ruby-identifier">external_encoding</span>,<span class="ruby-identifier">the_string</span>.<span class="ruby-identifier">encoding</span>,<span class="ruby-identifier">options</span>)
<span class="ruby-keyword">end</span>
<span class="ruby-identifier">the_string</span>.<span class="ruby-identifier">transcode!</span>(<span class="ruby-keyword">self</span>.<span class="ruby-identifier">external_encoding</span>,<span class="ruby-identifier">options</span>)
<span class="ruby-keyword">end</span>
<span class="ruby-keyword">end</span>
<span class="ruby-keyword">end</span>
<span class="ruby-comment">#</span>
<span class="ruby-identifier">the_string</span>
<span class="ruby-keyword">end</span></pre>
</div>
</div>
</div>
<div id="method-i-transcode_to_internal" class="method-detail ">
<div class="method-heading">
<span class="method-name">transcode_to_internal</span><span
class="method-args">(the_string=&quot;&quot;)</span>
<span class="method-click-advice">click to toggle source</span>
</div>
<div class="method-description">
<div class="method-source-code" id="transcode_to_internal-source">
<pre><span class="ruby-comment"># File lib/gxg/gxg_transcode.rb, line 324</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">transcode_to_internal</span>(<span class="ruby-identifier">the_string</span>=<span class="ruby-string">&quot;&quot;</span>)
<span class="ruby-comment"># return the supplied string, or supported object string data, or UTF_8 codepoint, transcoded</span>
<span class="ruby-keyword">unless</span> <span class="ruby-keyword">self</span>.<span class="ruby-identifier">instance_variable_defined?</span>(<span class="ruby-value">:@conversion_options</span>)
<span class="ruby-ivar">@conversion_options</span> = {<span class="ruby-value">:internal</span> <span class="ruby-operator">=&gt;</span> {}, <span class="ruby-value">:external</span> <span class="ruby-operator">=&gt;</span> {}}
<span class="ruby-keyword">end</span>
<span class="ruby-keyword">unless</span> <span class="ruby-keyword">self</span>.<span class="ruby-identifier">instance_variable_defined?</span>(<span class="ruby-value">:@internal_encoding</span>)
<span class="ruby-ivar">@internal_encoding</span> = <span class="ruby-keyword">nil</span>
<span class="ruby-keyword">end</span>
<span class="ruby-comment">#</span>
<span class="ruby-keyword">if</span> (<span class="ruby-ivar">@internal_encoding</span> <span class="ruby-operator">&amp;&amp;</span> <span class="ruby-operator">!</span> <span class="ruby-keyword">self</span>.<span class="ruby-identifier">binmode?</span>())
<span class="ruby-keyword">unless</span> <span class="ruby-identifier">the_string</span>.<span class="ruby-identifier">is_a?</span>(<span class="ruby-operator">::</span><span class="ruby-constant">String</span>)
<span class="ruby-identifier">the_string</span> = <span class="ruby-keyword">self</span>.<span class="ruby-identifier">convert_to_string</span>(<span class="ruby-identifier">the_string</span>,<span class="ruby-ivar">@internal_encoding</span>,<span class="ruby-ivar">@conversion_options</span>[<span class="ruby-value">:internal</span>])
<span class="ruby-keyword">end</span>
<span class="ruby-keyword">if</span> <span class="ruby-identifier">the_string</span>.<span class="ruby-identifier">size</span> <span class="ruby-operator">&gt;</span> <span class="ruby-value">0</span>
<span class="ruby-keyword">if</span> <span class="ruby-ivar">@internal_encoding</span> <span class="ruby-operator">==</span> <span class="ruby-operator">::</span><span class="ruby-constant">Encoding</span><span class="ruby-operator">::</span><span class="ruby-constant">ASCII_8BIT</span>
<span class="ruby-comment"># for cases where the external encoding is anything but binary, but the internal is set to BINARY.</span>
<span class="ruby-comment"># instead of actually transcoding something char by char into binary - just sets the encoding and filters for newline settings.</span>
<span class="ruby-comment">#</span>
<span class="ruby-identifier">the_string</span>.<span class="ruby-identifier">force_encoding</span>(<span class="ruby-operator">::</span><span class="ruby-constant">Encoding</span><span class="ruby-operator">::</span><span class="ruby-constant">ASCII_8BIT</span>)
<span class="ruby-identifier">nl_op</span> = <span class="ruby-keyword">self</span>.<span class="ruby-identifier">newline_option_used</span>(<span class="ruby-value">:internal</span>)
<span class="ruby-identifier">options</span> = {}
<span class="ruby-keyword">if</span> <span class="ruby-identifier">nl_op</span>
<span class="ruby-identifier">options</span>[(<span class="ruby-identifier">nl_op</span>)] = <span class="ruby-keyword">true</span>
<span class="ruby-keyword">end</span>
<span class="ruby-identifier">the_string</span> = <span class="ruby-identifier">the_string</span>.<span class="ruby-identifier">encode</span>(<span class="ruby-operator">::</span><span class="ruby-constant">Encoding</span><span class="ruby-operator">::</span><span class="ruby-constant">ASCII_8BIT</span>,<span class="ruby-operator">::</span><span class="ruby-constant">Encoding</span><span class="ruby-operator">::</span><span class="ruby-constant">ASCII_8BIT</span>,<span class="ruby-identifier">options</span>)
<span class="ruby-keyword">else</span>
<span class="ruby-keyword">if</span> (<span class="ruby-identifier">the_string</span>.<span class="ruby-identifier">encoding</span> <span class="ruby-operator">!=</span> <span class="ruby-ivar">@internal_encoding</span>)
<span class="ruby-keyword">if</span> <span class="ruby-identifier">the_string</span>.<span class="ruby-identifier">encoding</span> <span class="ruby-operator">==</span> <span class="ruby-keyword">self</span>.<span class="ruby-identifier">external_encoding</span>
<span class="ruby-identifier">options</span> = <span class="ruby-operator">::</span><span class="ruby-constant">String</span><span class="ruby-operator">::</span><span class="ruby-identifier">transcode_options</span>(<span class="ruby-ivar">@internal_encoding</span>,<span class="ruby-identifier">the_string</span>.<span class="ruby-identifier">encoding</span>,<span class="ruby-ivar">@conversion_options</span>[<span class="ruby-value">:internal</span>])
<span class="ruby-keyword">else</span>
<span class="ruby-identifier">nl_op</span> = <span class="ruby-keyword">self</span>.<span class="ruby-identifier">newline_option_used</span>(<span class="ruby-value">:internal</span>)
<span class="ruby-identifier">options</span> = {}
<span class="ruby-keyword">if</span> <span class="ruby-identifier">nl_op</span>
<span class="ruby-identifier">options</span>[(<span class="ruby-identifier">nl_op</span>)] = <span class="ruby-keyword">true</span>
<span class="ruby-keyword">end</span>
<span class="ruby-identifier">options</span> = <span class="ruby-operator">::</span><span class="ruby-constant">String</span><span class="ruby-operator">::</span><span class="ruby-identifier">transcode_options</span>(<span class="ruby-ivar">@internal_encoding</span>,<span class="ruby-identifier">the_string</span>.<span class="ruby-identifier">encoding</span>,<span class="ruby-identifier">options</span>)
<span class="ruby-keyword">end</span>
<span class="ruby-identifier">the_string</span>.<span class="ruby-identifier">transcode!</span>(<span class="ruby-ivar">@internal_encoding</span>,<span class="ruby-identifier">options</span>)
<span class="ruby-keyword">end</span>
<span class="ruby-keyword">end</span>
<span class="ruby-keyword">end</span>
<span class="ruby-keyword">else</span>
<span class="ruby-identifier">the_string</span> = <span class="ruby-keyword">self</span>.<span class="ruby-identifier">transcode_to_external</span>(<span class="ruby-identifier">the_string</span>)
<span class="ruby-keyword">end</span>
<span class="ruby-comment">#</span>
<span class="ruby-identifier">the_string</span>
<span class="ruby-keyword">end</span></pre>
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