doc/classes/Array.html

   1 <?xml version="1.0" encoding="iso-8859-1"?>
   2 <!DOCTYPE html
   3      PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
   4      "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
   5
   6 <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
   7 <head>
   8   <title>Class: Array</title>
   9   <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
  10   <meta http-equiv="Content-Script-Type" content="text/javascript" />
  11   <link rel="stylesheet" href=".././rdoc-style.css" type="text/css" media="screen" />
  12   <script type="text/javascript">
  13   // <![CDATA[
  14
  15   function popupCode( url ) {
  16     window.open(url, "Code", "resizable=yes,scrollbars=yes,toolbar=no,status=no,height=150,width=400")
  17   }
  18
  19   function toggleCode( id ) {
  20     if ( document.getElementById )
  21       elem = document.getElementById( id );
  22     else if ( document.all )
  23       elem = eval( "document.all." + id );
  24     else
  25       return false;
  26
  27     elemStyle = elem.style;
  28
  29     if ( elemStyle.display != "block" ) {
  30       elemStyle.display = "block"
  31     } else {
  32       elemStyle.display = "none"
  33     }
  34
  35     return true;
  36   }
  37
  38   // Make codeblocks hidden by default
  39   document.writeln( "<style type=\"text/css\">div.method-source-code { display: none }</style>" )
  40
  41   // ]]>
  42   </script>
  43
  44 </head>
  45 <body>
  46
  47
  48
  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>
  54         </tr>
  55         <tr class="top-aligned-row">
  56             <td><strong>In:</strong></td>
  57             <td>
  58                 <a href="../files/lib/mcollective/monkey_patches_rb.html">
  59                 lib/mcollective/monkey_patches.rb
  60                 </a>
  61         <br />
  62             </td>
  63         </tr>
  64
  65         <tr class="top-aligned-row">
  66             <td><strong>Parent:</strong></td>
  67             <td>
  68                 Object
  69             </td>
  70         </tr>
  71         </table>
  72     </div>
  73   <!-- banner header -->
  74
  75   <div id="bodyContent">
  76
  77
  78
  79   <div id="contextContent">
  80
  81     <div id="description">
  82       <p>
  83 a method # that walks an array in groups, pass a block to call the block on
  84 each sub array
  85 </p>
  86
  87     </div>
  88
  89
  90    </div>
  91
  92     <div id="method-list">
  93       <h3 class="section-bar">Methods</h3>
  94
  95       <div class="name-list">
  96       <a href="#M000013">in_groups_of</a>&nbsp;&nbsp;
  97       </div>
  98     </div>
  99
 100   </div>
 101
 102
 103     <!-- if includes -->
 104
 105     <div id="section">
 106
 107
 108
 109
 110
 111
 112
 113
 114     <!-- if method_list -->
 115     <div id="methods">
 116       <h3 class="section-bar">Public Instance methods</h3>
 117
 118       <div id="method-M000013" class="method-detail">
 119         <a name="M000013"></a>
 120
 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>
 124           </a>
 125         </div>
 126
 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">
 131 <pre>
 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">&amp;</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>
 135 31:
 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>)
 138 34:
 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>
 141 37:
 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>
 144 40:
 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">&lt;&lt;</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>]}
 148 44:
 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">&quot;Expected 1 or 2 arguments, got #{block.arity}&quot;</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>
 164 </pre>
 165           </div>
 166         </div>
 167       </div>
 168
 169
 170     </div>
 171
 172
 173   </div>
 174
 175
 176 <div id="validator-badges">
 177   <p><small><a href="http://validator.w3.org/check/referer">[Validate]</a></small></p>
 178 </div>
 179
 180 </body>
 181 </html>