doc/classes/MCollective/Matcher/Parser.html

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   8   <title>Class: MCollective::Matcher::Parser</title>
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  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">MCollective::Matcher::Parser</td>
  54         </tr>
  55         <tr class="top-aligned-row">
  56             <td><strong>In:</strong></td>
  57             <td>
  58                 <a href="../../../files/lib/mcollective/matcher/parser_rb.html">
  59                 lib/mcollective/matcher/parser.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
  82
  83    </div>
  84
  85     <div id="method-list">
  86       <h3 class="section-bar">Methods</h3>
  87
  88       <div class="name-list">
  89       <a href="#M000151">exit_with_paren_errors</a>&nbsp;&nbsp;
  90       <a href="#M000150">exit_with_parse_errors</a>&nbsp;&nbsp;
  91       <a href="#M000149">exit_with_token_errors</a>&nbsp;&nbsp;
  92       <a href="#M000148">new</a>&nbsp;&nbsp;
  93       <a href="#M000152">parse</a>&nbsp;&nbsp;
  94       </div>
  95     </div>
  96
  97   </div>
  98
  99
 100     <!-- if includes -->
 101
 102     <div id="section">
 103
 104
 105
 106
 107
 108     <div id="attribute-list">
 109       <h3 class="section-bar">Attributes</h3>
 110
 111       <div class="name-list">
 112         <table>
 113         <tr class="top-aligned-row context-row">
 114           <td class="context-item-name">execution_stack</td>
 115           <td class="context-item-value">&nbsp;[R]&nbsp;</td>
 116           <td class="context-item-desc"></td>
 117         </tr>
 118         <tr class="top-aligned-row context-row">
 119           <td class="context-item-name">scanner</td>
 120           <td class="context-item-value">&nbsp;[R]&nbsp;</td>
 121           <td class="context-item-desc"></td>
 122         </tr>
 123         </table>
 124       </div>
 125     </div>
 126
 127
 128
 129     <!-- if method_list -->
 130     <div id="methods">
 131       <h3 class="section-bar">Public Class methods</h3>
 132
 133       <div id="method-M000148" class="method-detail">
 134         <a name="M000148"></a>
 135
 136         <div class="method-heading">
 137           <a href="#M000148" class="method-signature">
 138           <span class="method-name">new</span><span class="method-args">(args)</span>
 139           </a>
 140         </div>
 141
 142         <div class="method-description">
 143           <p><a class="source-toggle" href="#"
 144             onclick="toggleCode('M000148-source');return false;">[Source]</a></p>
 145           <div class="method-source-code" id="M000148-source">
 146 <pre>
 147     <span class="ruby-comment cmt"># File lib/mcollective/matcher/parser.rb, line 6</span>
 148  6:       <span class="ruby-keyword kw">def</span> <span class="ruby-identifier">initialize</span>(<span class="ruby-identifier">args</span>)
 149  7:         <span class="ruby-ivar">@scanner</span> = <span class="ruby-constant">Scanner</span>.<span class="ruby-identifier">new</span>(<span class="ruby-identifier">args</span>)
 150  8:         <span class="ruby-ivar">@execution_stack</span> = []
 151  9:         <span class="ruby-ivar">@parse_errors</span> = []
 152 10:         <span class="ruby-ivar">@token_errors</span> = []
 153 11:         <span class="ruby-ivar">@paren_errors</span> = []
 154 12:         <span class="ruby-identifier">parse</span>
 155 13:         <span class="ruby-identifier">exit_with_token_errors</span> <span class="ruby-keyword kw">if</span> <span class="ruby-ivar">@token_errors</span>.<span class="ruby-identifier">size</span> <span class="ruby-operator">&gt;</span> <span class="ruby-value">0</span>
 156 14:         <span class="ruby-identifier">exit_with_parse_errors</span> <span class="ruby-keyword kw">if</span> <span class="ruby-ivar">@parse_errors</span>.<span class="ruby-identifier">size</span> <span class="ruby-operator">&gt;</span> <span class="ruby-value">0</span>
 157 15:         <span class="ruby-identifier">exit_with_paren_errors</span> <span class="ruby-keyword kw">if</span> <span class="ruby-ivar">@paren_errors</span>.<span class="ruby-identifier">size</span> <span class="ruby-operator">&gt;</span> <span class="ruby-value">0</span>
 158 16:       <span class="ruby-keyword kw">end</span>
 159 </pre>
 160           </div>
 161         </div>
 162       </div>
 163
 164       <h3 class="section-bar">Public Instance methods</h3>
 165
 166       <div id="method-M000151" class="method-detail">
 167         <a name="M000151"></a>
 168
 169         <div class="method-heading">
 170           <a href="#M000151" class="method-signature">
 171           <span class="method-name">exit_with_paren_errors</span><span class="method-args">()</span>
 172           </a>
 173         </div>
 174
 175         <div class="method-description">
 176           <p><a class="source-toggle" href="#"
 177             onclick="toggleCode('M000151-source');return false;">[Source]</a></p>
 178           <div class="method-source-code" id="M000151-source">
 179 <pre>
 180     <span class="ruby-comment cmt"># File lib/mcollective/matcher/parser.rb, line 37</span>
 181 37:       <span class="ruby-keyword kw">def</span> <span class="ruby-identifier">exit_with_paren_errors</span>
 182 38:         <span class="ruby-ivar">@paren_errors</span>.<span class="ruby-identifier">each</span> <span class="ruby-keyword kw">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">i</span><span class="ruby-operator">|</span>
 183 39:           <span class="ruby-ivar">@scanner</span>.<span class="ruby-identifier">arguments</span>[<span class="ruby-identifier">i</span>] = <span class="ruby-constant">Util</span>.<span class="ruby-identifier">colorize</span>(<span class="ruby-identifier">:red</span>, <span class="ruby-ivar">@scanner</span>.<span class="ruby-identifier">arguments</span>[<span class="ruby-identifier">i</span>])
 184 40:         <span class="ruby-keyword kw">end</span>
 185 41:         <span class="ruby-identifier">raise</span> <span class="ruby-node">&quot;Missing parenthesis found while parsing -S input #{@scanner.arguments.join}&quot;</span>
 186 42:       <span class="ruby-keyword kw">end</span>
 187 </pre>
 188           </div>
 189         </div>
 190       </div>
 191
 192       <div id="method-M000150" class="method-detail">
 193         <a name="M000150"></a>
 194
 195         <div class="method-heading">
 196           <a href="#M000150" class="method-signature">
 197           <span class="method-name">exit_with_parse_errors</span><span class="method-args">()</span>
 198           </a>
 199         </div>
 200
 201         <div class="method-description">
 202           <p><a class="source-toggle" href="#"
 203             onclick="toggleCode('M000150-source');return false;">[Source]</a></p>
 204           <div class="method-source-code" id="M000150-source">
 205 <pre>
 206     <span class="ruby-comment cmt"># File lib/mcollective/matcher/parser.rb, line 28</span>
 207 28:       <span class="ruby-keyword kw">def</span> <span class="ruby-identifier">exit_with_parse_errors</span>
 208 29:         <span class="ruby-ivar">@parse_errors</span>.<span class="ruby-identifier">each</span> <span class="ruby-keyword kw">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">error_range</span><span class="ruby-operator">|</span>
 209 30:           (<span class="ruby-identifier">error_range</span>[<span class="ruby-value">0</span>]<span class="ruby-operator">..</span><span class="ruby-identifier">error_range</span>[<span class="ruby-value">1</span>]).<span class="ruby-identifier">each</span> <span class="ruby-keyword kw">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">i</span><span class="ruby-operator">|</span>
 210 31:             <span class="ruby-ivar">@scanner</span>.<span class="ruby-identifier">arguments</span>[<span class="ruby-identifier">i</span>] = <span class="ruby-constant">Util</span>.<span class="ruby-identifier">colorize</span>(<span class="ruby-identifier">:red</span>, <span class="ruby-ivar">@scanner</span>.<span class="ruby-identifier">arguments</span>[<span class="ruby-identifier">i</span>])
 211 32:           <span class="ruby-keyword kw">end</span>
 212 33:         <span class="ruby-keyword kw">end</span>
 213 34:         <span class="ruby-identifier">raise</span> <span class="ruby-node">&quot;Parse errors found while parsing -S input #{ @scanner.arguments.join}&quot;</span>
 214 35:       <span class="ruby-keyword kw">end</span>
 215 </pre>
 216           </div>
 217         </div>
 218       </div>
 219
 220       <div id="method-M000149" class="method-detail">
 221         <a name="M000149"></a>
 222
 223         <div class="method-heading">
 224           <a href="#M000149" class="method-signature">
 225           <span class="method-name">exit_with_token_errors</span><span class="method-args">()</span>
 226           </a>
 227         </div>
 228
 229         <div class="method-description">
 230           <p>
 231 Exit and highlight any malformed tokens
 232 </p>
 233           <p><a class="source-toggle" href="#"
 234             onclick="toggleCode('M000149-source');return false;">[Source]</a></p>
 235           <div class="method-source-code" id="M000149-source">
 236 <pre>
 237     <span class="ruby-comment cmt"># File lib/mcollective/matcher/parser.rb, line 19</span>
 238 19:       <span class="ruby-keyword kw">def</span> <span class="ruby-identifier">exit_with_token_errors</span>
 239 20:         <span class="ruby-ivar">@token_errors</span>.<span class="ruby-identifier">each</span> <span class="ruby-keyword kw">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">error_range</span><span class="ruby-operator">|</span>
 240 21:           (<span class="ruby-identifier">error_range</span>[<span class="ruby-value">0</span>]<span class="ruby-operator">..</span><span class="ruby-identifier">error_range</span>[<span class="ruby-value">1</span>]).<span class="ruby-identifier">each</span> <span class="ruby-keyword kw">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">i</span><span class="ruby-operator">|</span>
 241 22:             <span class="ruby-ivar">@scanner</span>.<span class="ruby-identifier">arguments</span>[<span class="ruby-identifier">i</span>] = <span class="ruby-constant">Util</span>.<span class="ruby-identifier">colorize</span>(<span class="ruby-identifier">:red</span>, <span class="ruby-ivar">@scanner</span>.<span class="ruby-identifier">arguments</span>[<span class="ruby-identifier">i</span>])
 242 23:           <span class="ruby-keyword kw">end</span>
 243 24:         <span class="ruby-keyword kw">end</span>
 244 25:         <span class="ruby-identifier">raise</span> <span class="ruby-node">&quot;Malformed token(s) found while parsing -S input #{@scanner.arguments.join}&quot;</span>
 245 26:       <span class="ruby-keyword kw">end</span>
 246 </pre>
 247           </div>
 248         </div>
 249       </div>
 250
 251       <div id="method-M000152" class="method-detail">
 252         <a name="M000152"></a>
 253
 254         <div class="method-heading">
 255           <a href="#M000152" class="method-signature">
 256           <span class="method-name">parse</span><span class="method-args">()</span>
 257           </a>
 258         </div>
 259
 260         <div class="method-description">
 261           <p>
 262 Parse the input string, one token at a time a contruct the call stack
 263 </p>
 264           <p><a class="source-toggle" href="#"
 265             onclick="toggleCode('M000152-source');return false;">[Source]</a></p>
 266           <div class="method-source-code" id="M000152-source">
 267 <pre>
 268      <span class="ruby-comment cmt"># File lib/mcollective/matcher/parser.rb, line 45</span>
 269  45:       <span class="ruby-keyword kw">def</span> <span class="ruby-identifier">parse</span>
 270  46:         <span class="ruby-identifier">pre_index</span> = <span class="ruby-ivar">@scanner</span>.<span class="ruby-identifier">token_index</span>
 271  47:         <span class="ruby-identifier">p_token</span>,<span class="ruby-identifier">p_token_value</span> = <span class="ruby-keyword kw">nil</span>
 272  48:         <span class="ruby-identifier">c_token</span>,<span class="ruby-identifier">c_token_value</span> = <span class="ruby-ivar">@scanner</span>.<span class="ruby-identifier">get_token</span>
 273  49:         <span class="ruby-identifier">parenth</span> = <span class="ruby-value">0</span>
 274  50:
 275  51:         <span class="ruby-keyword kw">while</span> (<span class="ruby-identifier">c_token</span> <span class="ruby-operator">!=</span> <span class="ruby-keyword kw">nil</span>)
 276  52:           <span class="ruby-ivar">@scanner</span>.<span class="ruby-identifier">token_index</span> <span class="ruby-operator">+=</span> <span class="ruby-value">1</span>
 277  53:           <span class="ruby-identifier">n_token</span>, <span class="ruby-identifier">n_token_value</span> = <span class="ruby-ivar">@scanner</span>.<span class="ruby-identifier">get_token</span>
 278  54:
 279  55:           <span class="ruby-keyword kw">unless</span> <span class="ruby-identifier">n_token</span> <span class="ruby-operator">==</span> <span class="ruby-value str">&quot; &quot;</span>
 280  56:             <span class="ruby-keyword kw">case</span> <span class="ruby-identifier">c_token</span>
 281  57:             <span class="ruby-keyword kw">when</span> <span class="ruby-value str">&quot;bad_token&quot;</span>
 282  58:               <span class="ruby-ivar">@token_errors</span> <span class="ruby-operator">&lt;&lt;</span> <span class="ruby-identifier">c_token_value</span>
 283  59:
 284  60:             <span class="ruby-keyword kw">when</span> <span class="ruby-value str">&quot;and&quot;</span>
 285  61:               <span class="ruby-keyword kw">unless</span> (<span class="ruby-identifier">n_token</span> <span class="ruby-operator">=~</span> <span class="ruby-regexp re">/not|fstatement|statement|\(/</span>) <span class="ruby-operator">||</span> (<span class="ruby-identifier">scanner</span>.<span class="ruby-identifier">token_index</span> <span class="ruby-operator">==</span> <span class="ruby-identifier">scanner</span>.<span class="ruby-identifier">arguments</span>.<span class="ruby-identifier">size</span>) <span class="ruby-operator">&amp;&amp;</span> <span class="ruby-operator">!</span>(<span class="ruby-identifier">n_token</span> <span class="ruby-operator">==</span> <span class="ruby-keyword kw">nil</span>)
 286  62:                 <span class="ruby-ivar">@parse_errors</span> <span class="ruby-operator">&lt;&lt;</span> [<span class="ruby-identifier">pre_index</span>, <span class="ruby-identifier">scanner</span>.<span class="ruby-identifier">token_index</span>]
 287  63:               <span class="ruby-keyword kw">end</span>
 288  64:
 289  65:               <span class="ruby-keyword kw">if</span> <span class="ruby-identifier">p_token</span> <span class="ruby-operator">==</span> <span class="ruby-keyword kw">nil</span>
 290  66:                 <span class="ruby-ivar">@parse_errors</span> <span class="ruby-operator">&lt;&lt;</span> [<span class="ruby-identifier">pre_index</span> <span class="ruby-operator">-</span> <span class="ruby-identifier">c_token</span>.<span class="ruby-identifier">size</span>, <span class="ruby-identifier">scanner</span>.<span class="ruby-identifier">token_index</span>]
 291  67:               <span class="ruby-keyword kw">elsif</span> (<span class="ruby-identifier">p_token</span> <span class="ruby-operator">==</span> <span class="ruby-value str">&quot;and&quot;</span> <span class="ruby-operator">||</span> <span class="ruby-identifier">p_token</span> <span class="ruby-operator">==</span> <span class="ruby-value str">&quot;or&quot;</span>)
 292  68:                 <span class="ruby-ivar">@parse_errors</span> <span class="ruby-operator">&lt;&lt;</span> [<span class="ruby-identifier">pre_index</span> <span class="ruby-operator">-</span> <span class="ruby-value">1</span> <span class="ruby-operator">-</span> <span class="ruby-identifier">p_token</span>.<span class="ruby-identifier">size</span>, <span class="ruby-identifier">pre_index</span> <span class="ruby-operator">-</span> <span class="ruby-value">1</span>]
 293  69:               <span class="ruby-keyword kw">end</span>
 294  70:
 295  71:             <span class="ruby-keyword kw">when</span> <span class="ruby-value str">&quot;or&quot;</span>
 296  72:               <span class="ruby-keyword kw">unless</span> (<span class="ruby-identifier">n_token</span> <span class="ruby-operator">=~</span> <span class="ruby-regexp re">/not|fstatement|statement|\(/</span>) <span class="ruby-operator">||</span> (<span class="ruby-identifier">scanner</span>.<span class="ruby-identifier">token_index</span> <span class="ruby-operator">==</span> <span class="ruby-identifier">scanner</span>.<span class="ruby-identifier">arguments</span>.<span class="ruby-identifier">size</span>) <span class="ruby-operator">&amp;&amp;</span> <span class="ruby-operator">!</span>(<span class="ruby-identifier">n_token</span> <span class="ruby-operator">==</span> <span class="ruby-keyword kw">nil</span>)
 297  73:                 <span class="ruby-ivar">@parse_errors</span> <span class="ruby-operator">&lt;&lt;</span> [<span class="ruby-identifier">pre_index</span>, <span class="ruby-identifier">scanner</span>.<span class="ruby-identifier">token_index</span>]
 298  74:               <span class="ruby-keyword kw">end</span>
 299  75:
 300  76:               <span class="ruby-keyword kw">if</span> <span class="ruby-identifier">p_token</span> <span class="ruby-operator">==</span> <span class="ruby-keyword kw">nil</span>
 301  77:                 <span class="ruby-ivar">@parse_errors</span> <span class="ruby-operator">&lt;&lt;</span> [<span class="ruby-identifier">pre_index</span> <span class="ruby-operator">-</span> <span class="ruby-identifier">c_token</span>.<span class="ruby-identifier">size</span>, <span class="ruby-identifier">scanner</span>.<span class="ruby-identifier">token_index</span>]
 302  78:               <span class="ruby-keyword kw">elsif</span> (<span class="ruby-identifier">p_token</span> <span class="ruby-operator">==</span> <span class="ruby-value str">&quot;and&quot;</span> <span class="ruby-operator">||</span> <span class="ruby-identifier">p_token</span> <span class="ruby-operator">==</span> <span class="ruby-value str">&quot;or&quot;</span>)
 303  79:                 <span class="ruby-ivar">@parse_errors</span> <span class="ruby-operator">&lt;&lt;</span> [<span class="ruby-identifier">pre_index</span> <span class="ruby-operator">-</span> <span class="ruby-value">1</span> <span class="ruby-operator">-</span> <span class="ruby-identifier">p_token</span>.<span class="ruby-identifier">size</span>, <span class="ruby-identifier">pre_index</span> <span class="ruby-operator">-</span> <span class="ruby-value">1</span>]
 304  80:               <span class="ruby-keyword kw">end</span>
 305  81:
 306  82:             <span class="ruby-keyword kw">when</span> <span class="ruby-value str">&quot;not&quot;</span>
 307  83:               <span class="ruby-keyword kw">unless</span> <span class="ruby-identifier">n_token</span> <span class="ruby-operator">=~</span> <span class="ruby-regexp re">/fstatement|statement|\(|not/</span> <span class="ruby-operator">&amp;&amp;</span> <span class="ruby-operator">!</span>(<span class="ruby-identifier">n_token</span> <span class="ruby-operator">==</span> <span class="ruby-keyword kw">nil</span>)
 308  84:                 <span class="ruby-ivar">@parse_errors</span> <span class="ruby-operator">&lt;&lt;</span> [<span class="ruby-identifier">pre_index</span>, <span class="ruby-identifier">scanner</span>.<span class="ruby-identifier">token_index</span>]
 309  85:               <span class="ruby-keyword kw">end</span>
 310  86:
 311  87:             <span class="ruby-keyword kw">when</span> <span class="ruby-value str">&quot;statement&quot;</span>,<span class="ruby-value str">&quot;fstatement&quot;</span>
 312  88:               <span class="ruby-keyword kw">unless</span> <span class="ruby-identifier">n_token</span> <span class="ruby-operator">=~</span> <span class="ruby-regexp re">/and|or|\)/</span>
 313  89:                 <span class="ruby-keyword kw">unless</span> <span class="ruby-identifier">scanner</span>.<span class="ruby-identifier">token_index</span> <span class="ruby-operator">==</span> <span class="ruby-identifier">scanner</span>.<span class="ruby-identifier">arguments</span>.<span class="ruby-identifier">size</span>
 314  90:                   <span class="ruby-ivar">@parse_errors</span> <span class="ruby-operator">&lt;&lt;</span> [<span class="ruby-identifier">pre_index</span>, <span class="ruby-identifier">scanner</span>.<span class="ruby-identifier">token_index</span>]
 315  91:                 <span class="ruby-keyword kw">end</span>
 316  92:               <span class="ruby-keyword kw">end</span>
 317  93:
 318  94:             <span class="ruby-keyword kw">when</span> <span class="ruby-value str">&quot;)&quot;</span>
 319  95:               <span class="ruby-keyword kw">unless</span> (<span class="ruby-identifier">n_token</span> <span class="ruby-operator">=~</span> <span class="ruby-regexp re">/|and|or|not|\(/</span>)
 320  96:                 <span class="ruby-keyword kw">unless</span>(<span class="ruby-identifier">scanner</span>.<span class="ruby-identifier">token_index</span> <span class="ruby-operator">==</span> <span class="ruby-identifier">scanner</span>.<span class="ruby-identifier">arguments</span>.<span class="ruby-identifier">size</span>)
 321  97:                   <span class="ruby-ivar">@parse_errors</span> <span class="ruby-operator">&lt;&lt;</span> [<span class="ruby-identifier">pre_index</span>, <span class="ruby-identifier">scanner</span>.<span class="ruby-identifier">token_index</span>]
 322  98:                 <span class="ruby-keyword kw">end</span>
 323  99:               <span class="ruby-keyword kw">end</span>
 324 100:               <span class="ruby-keyword kw">unless</span> <span class="ruby-ivar">@paren_errors</span>.<span class="ruby-identifier">empty?</span>
 325 101:                 <span class="ruby-ivar">@paren_errors</span>.<span class="ruby-identifier">pop</span>
 326 102:               <span class="ruby-keyword kw">else</span>
 327 103:                 <span class="ruby-ivar">@paren_errors</span>.<span class="ruby-identifier">push</span>((<span class="ruby-identifier">n_token</span>.<span class="ruby-identifier">nil?</span>) <span class="ruby-operator">?</span> <span class="ruby-identifier">scanner</span>.<span class="ruby-identifier">token_index</span> <span class="ruby-operator">-</span> <span class="ruby-value">1</span><span class="ruby-operator">:</span> <span class="ruby-identifier">scanner</span>.<span class="ruby-identifier">token_index</span> <span class="ruby-operator">-</span> <span class="ruby-identifier">n_token_value</span>.<span class="ruby-identifier">size</span>)
 328 104:               <span class="ruby-keyword kw">end</span>
 329 105:
 330 106:             <span class="ruby-keyword kw">when</span> <span class="ruby-value str">&quot;(&quot;</span>
 331 107:               <span class="ruby-keyword kw">unless</span> <span class="ruby-identifier">n_token</span> <span class="ruby-operator">=~</span> <span class="ruby-regexp re">/fstatement|statement|not|\(/</span>
 332 108:                 <span class="ruby-ivar">@parse_errors</span> <span class="ruby-operator">&lt;&lt;</span> [<span class="ruby-identifier">pre_index</span>, <span class="ruby-identifier">scanner</span>.<span class="ruby-identifier">token_index</span>]
 333 109:               <span class="ruby-keyword kw">end</span>
 334 110:               <span class="ruby-ivar">@paren_errors</span>.<span class="ruby-identifier">push</span>((<span class="ruby-identifier">n_token</span>.<span class="ruby-identifier">nil?</span>) <span class="ruby-operator">?</span> <span class="ruby-identifier">scanner</span>.<span class="ruby-identifier">token_index</span> <span class="ruby-operator">-</span> <span class="ruby-value">1</span><span class="ruby-operator">:</span> <span class="ruby-identifier">scanner</span>.<span class="ruby-identifier">token_index</span> <span class="ruby-operator">-</span> <span class="ruby-identifier">n_token_value</span>.<span class="ruby-identifier">size</span>)
 335 111:
 336 112:             <span class="ruby-keyword kw">else</span>
 337 113:               <span class="ruby-ivar">@parse_errors</span> <span class="ruby-operator">&lt;&lt;</span> [<span class="ruby-identifier">pre_index</span>, <span class="ruby-identifier">scanner</span>.<span class="ruby-identifier">token_index</span>]
 338 114:             <span class="ruby-keyword kw">end</span>
 339 115:
 340 116:             <span class="ruby-keyword kw">unless</span> <span class="ruby-identifier">n_token</span> <span class="ruby-operator">==</span> <span class="ruby-value str">&quot; &quot;</span> <span class="ruby-operator">||</span><span class="ruby-identifier">c_token</span> <span class="ruby-operator">==</span> <span class="ruby-value str">&quot;bad_token&quot;</span>
 341 117:               <span class="ruby-ivar">@execution_stack</span> <span class="ruby-operator">&lt;&lt;</span> {<span class="ruby-identifier">c_token</span> =<span class="ruby-operator">&gt;</span> <span class="ruby-identifier">c_token_value</span>}
 342 118:             <span class="ruby-keyword kw">end</span>
 343 119:
 344 120:             <span class="ruby-identifier">p_token</span>, <span class="ruby-identifier">p_token_value</span> = <span class="ruby-identifier">c_token</span>, <span class="ruby-identifier">c_token_value</span>
 345 121:             <span class="ruby-identifier">c_token</span>, <span class="ruby-identifier">c_token_value</span> = <span class="ruby-identifier">n_token</span>, <span class="ruby-identifier">n_token_value</span>
 346 122:           <span class="ruby-keyword kw">end</span>
 347 123:           <span class="ruby-identifier">pre_index</span> = <span class="ruby-ivar">@scanner</span>.<span class="ruby-identifier">token_index</span>
 348 124:         <span class="ruby-keyword kw">end</span>
 349 125:       <span class="ruby-keyword kw">end</span>
 350 </pre>
 351           </div>
 352         </div>
 353       </div>
 354
 355
 356     </div>
 357
 358
 359   </div>
 360
 361
 362 <div id="validator-badges">
 363   <p><small><a href="http://validator.w3.org/check/referer">[Validate]</a></small></p>
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