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waypoint -- documented down to the ThrowNode

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Jeremy Ashkenas 2010-03-08 04:58:39 -05:00
parent 299e9918b9
commit 6d74e223be
4 changed files with 58 additions and 45 deletions
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13
documentation/docs/lexer.html
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@ -265,12 +265,15 @@ token stream.</p> </td> <td class="code">
<span class="nx">tokens</span><span class="p">.</span><span class="nx">push</span> <span class="p">[</span><span class="s1">&#39;IDENTIFIER&#39;</span><span class="p">,</span> <span class="nx">interp</span><span class="p">]</span>
<span class="nx">i</span> <span class="o">+=</span> <span class="nx">group</span><span class="p">.</span><span class="nx">length</span> <span class="o">-</span> <span class="mi">1</span>
<span class="nv">pi: </span><span class="nx">i</span> <span class="o">+</span> <span class="mi">1</span>
<span class="k">else</span> <span class="k">if</span> <span class="p">(</span><span class="nv">expr: </span><span class="err">@</span><span class="nx">balanced_string</span> <span class="nx">str</span><span class="p">.</span><span class="nx">substring</span><span class="p">(</span><span class="nx">i</span><span class="p">),</span> <span class="p">[</span><span class="s1">&#39;${&#39;</span><span class="p">,</span> <span class="s1">&#39;}&#39;</span><span class="p">])</span> <span class="o">and</span> <span class="nx">expr</span><span class="p">.</span><span class="nx">length</span> <span class="o">&gt;</span> <span class="mi">3</span>
<span class="nv">inner: </span><span class="nx">expr</span><span class="p">.</span><span class="nx">substring</span><span class="p">(</span><span class="mi">2</span><span class="p">,</span> <span class="nx">expr</span><span class="p">.</span><span class="nx">length</span> <span class="o">-</span> <span class="mi">1</span><span class="p">)</span>
<span class="nv">nested: </span><span class="nx">lexer</span><span class="p">.</span><span class="nx">tokenize</span> <span class="s2">&quot;($inner)&quot;</span><span class="p">,</span> <span class="p">{</span><span class="nv">rewrite: </span><span class="kc">no</span><span class="p">,</span> <span class="nv">line: </span><span class="err">@</span><span class="nx">line</span><span class="p">}</span>
<span class="nx">nested</span><span class="p">.</span><span class="nx">pop</span><span class="p">()</span>
<span class="k">else</span> <span class="k">if</span> <span class="p">(</span><span class="nv">expr: </span><span class="err">@</span><span class="nx">balanced_string</span> <span class="nx">str</span><span class="p">.</span><span class="nx">substring</span><span class="p">(</span><span class="nx">i</span><span class="p">),</span> <span class="p">[</span><span class="s1">&#39;${&#39;</span><span class="p">,</span> <span class="s1">&#39;}&#39;</span><span class="p">])</span>
<span class="nx">tokens</span><span class="p">.</span><span class="nx">push</span> <span class="p">[</span><span class="s1">&#39;STRING&#39;</span><span class="p">,</span> <span class="s2">&quot;$quote${ str.substring(pi, i) }$quote&quot;</span><span class="p">]</span> <span class="k">if</span> <span class="nx">pi</span> <span class="o">&lt;</span> <span class="nx">i</span>
<span class="nx">tokens</span><span class="p">.</span><span class="nx">push</span> <span class="p">[</span><span class="s1">&#39;TOKENS&#39;</span><span class="p">,</span> <span class="nx">nested</span><span class="p">]</span>
<span class="nv">inner: </span><span class="nx">expr</span><span class="p">.</span><span class="nx">substring</span><span class="p">(</span><span class="mi">2</span><span class="p">,</span> <span class="nx">expr</span><span class="p">.</span><span class="nx">length</span> <span class="o">-</span> <span class="mi">1</span><span class="p">)</span>
<span class="k">if</span> <span class="nx">inner</span><span class="p">.</span><span class="nx">length</span>
<span class="nv">nested: </span><span class="nx">lexer</span><span class="p">.</span><span class="nx">tokenize</span> <span class="s2">&quot;($inner)&quot;</span><span class="p">,</span> <span class="p">{</span><span class="nv">rewrite: </span><span class="kc">no</span><span class="p">,</span> <span class="nv">line: </span><span class="err">@</span><span class="nx">line</span><span class="p">}</span>
<span class="nx">nested</span><span class="p">.</span><span class="nx">pop</span><span class="p">()</span>
<span class="nx">tokens</span><span class="p">.</span><span class="nx">push</span> <span class="p">[</span><span class="s1">&#39;TOKENS&#39;</span><span class="p">,</span> <span class="nx">nested</span><span class="p">]</span>
<span class="k">else</span>
<span class="nx">tokens</span><span class="p">.</span><span class="nx">push</span> <span class="p">[</span><span class="s1">&#39;STRING&#39;</span><span class="p">,</span> <span class="s2">&quot;$quote$quote&quot;</span><span class="p">]</span>
<span class="nx">i</span> <span class="o">+=</span> <span class="nx">expr</span><span class="p">.</span><span class="nx">length</span> <span class="o">-</span> <span class="mi">1</span>
<span class="nv">pi: </span><span class="nx">i</span> <span class="o">+</span> <span class="mi">1</span>
<span class="nx">i</span> <span class="o">+=</span> <span class="mi">1</span>