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8 <title>Class: Array</title>
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49 <div id="classHeader">
50 <table class="header-table">
51 <tr class="top-aligned-row">
52 <td><strong>Class</strong></td>
53 <td class="class-name-in-header">Array</td>
55 <tr class="top-aligned-row">
56 <td><strong>In:</strong></td>
58 <a href="../files/lib/mcollective/monkey_patches_rb.html">
59 lib/mcollective/monkey_patches.rb
65 <tr class="top-aligned-row">
66 <td><strong>Parent:</strong></td>
73 <!-- banner header -->
75 <div id="bodyContent">
79 <div id="contextContent">
81 <div id="description">
83 a method # that walks an array in groups, pass a block to call the block on
92 <div id="method-list">
93 <h3 class="section-bar">Methods</h3>
95 <div class="name-list">
96 <a href="#M000013">in_groups_of</a>
114 <!-- if method_list -->
116 <h3 class="section-bar">Public Instance methods</h3>
118 <div id="method-M000013" class="method-detail">
119 <a name="M000013"></a>
121 <div class="method-heading">
122 <a href="#M000013" class="method-signature">
123 <span class="method-name">in_groups_of</span><span class="method-args">(chunk_size, padded_with=nil) {|a| ...}</span>
127 <div class="method-description">
128 <p><a class="source-toggle" href="#"
129 onclick="toggleCode('M000013-source');return false;">[Source]</a></p>
130 <div class="method-source-code" id="M000013-source">
132 <span class="ruby-comment cmt"># File lib/mcollective/monkey_patches.rb, line 29</span>
133 29: <span class="ruby-keyword kw">def</span> <span class="ruby-identifier">in_groups_of</span>(<span class="ruby-identifier">chunk_size</span>, <span class="ruby-identifier">padded_with</span>=<span class="ruby-keyword kw">nil</span>, <span class="ruby-operator">&</span><span class="ruby-identifier">block</span>)
134 30: <span class="ruby-identifier">arr</span> = <span class="ruby-keyword kw">self</span>.<span class="ruby-identifier">clone</span>
136 32: <span class="ruby-comment cmt"># how many to add</span>
137 33: <span class="ruby-identifier">padding</span> = <span class="ruby-identifier">chunk_size</span> <span class="ruby-operator">-</span> (<span class="ruby-identifier">arr</span>.<span class="ruby-identifier">size</span> <span class="ruby-operator">%</span> <span class="ruby-identifier">chunk_size</span>)
139 35: <span class="ruby-comment cmt"># pad at the end</span>
140 36: <span class="ruby-identifier">arr</span>.<span class="ruby-identifier">concat</span>([<span class="ruby-identifier">padded_with</span>] <span class="ruby-operator">*</span> <span class="ruby-identifier">padding</span>) <span class="ruby-keyword kw">unless</span> <span class="ruby-identifier">padding</span> <span class="ruby-operator">==</span> <span class="ruby-identifier">chunk_size</span>
142 38: <span class="ruby-comment cmt"># how many chunks we'll make</span>
143 39: <span class="ruby-identifier">count</span> = <span class="ruby-identifier">arr</span>.<span class="ruby-identifier">size</span> <span class="ruby-operator">/</span> <span class="ruby-identifier">chunk_size</span>
145 41: <span class="ruby-comment cmt"># make that many arrays</span>
146 42: <span class="ruby-identifier">result</span> = []
147 43: <span class="ruby-identifier">count</span>.<span class="ruby-identifier">times</span> {<span class="ruby-operator">|</span><span class="ruby-identifier">s</span><span class="ruby-operator">|</span> <span class="ruby-identifier">result</span> <span class="ruby-operator"><<</span> <span class="ruby-identifier">arr</span>[<span class="ruby-identifier">s</span> <span class="ruby-operator">*</span> <span class="ruby-identifier">chunk_size</span>, <span class="ruby-identifier">chunk_size</span>]}
149 45: <span class="ruby-keyword kw">if</span> <span class="ruby-identifier">block_given?</span>
150 46: <span class="ruby-identifier">result</span>.<span class="ruby-identifier">each_with_index</span> <span class="ruby-keyword kw">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">a</span>, <span class="ruby-identifier">i</span><span class="ruby-operator">|</span>
151 47: <span class="ruby-keyword kw">case</span> <span class="ruby-identifier">block</span>.<span class="ruby-identifier">arity</span>
152 48: <span class="ruby-keyword kw">when</span> <span class="ruby-value">1</span>
153 49: <span class="ruby-keyword kw">yield</span>(<span class="ruby-identifier">a</span>)
154 50: <span class="ruby-keyword kw">when</span> <span class="ruby-value">2</span>
155 51: <span class="ruby-keyword kw">yield</span>(<span class="ruby-identifier">a</span>, (<span class="ruby-identifier">i</span> <span class="ruby-operator">==</span> <span class="ruby-identifier">result</span>.<span class="ruby-identifier">size</span> <span class="ruby-operator">-</span> <span class="ruby-value">1</span>))
156 52: <span class="ruby-keyword kw">else</span>
157 53: <span class="ruby-identifier">raise</span> <span class="ruby-node">"Expected 1 or 2 arguments, got #{block.arity}"</span>
158 54: <span class="ruby-keyword kw">end</span>
159 55: <span class="ruby-keyword kw">end</span>
160 56: <span class="ruby-keyword kw">else</span>
161 57: <span class="ruby-identifier">result</span>
162 58: <span class="ruby-keyword kw">end</span>
163 59: <span class="ruby-keyword kw">end</span>
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