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<!--Weave of 'Symbols Tables' generated by Inweb-->
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<ul class="crumbs"><li><a href="../index.html">Home</a></li><li><a href="../compiler.html">Inter Modules</a></li><li><a href="index.html">bytecode</a></li><li><a href="index.html#2">Chapter 2: Interoperability</a></li><li><b>Symbols Tables</b></li></ul></div>
<p class="purpose">To manage searchable tables of named symbols.</p>
<ul class="toc"><li><a href="2-st.html#SP1">&#167;1. Symbols tables</a></li><li><a href="2-st.html#SP4">&#167;4. From name to symbol</a></li><li><a href="2-st.html#SP5">&#167;5. Creation by unique name</a></li><li><a href="2-st.html#SP6">&#167;6. From symbol to ID</a></li><li><a href="2-st.html#SP8">&#167;8. From ID to symbol</a></li><li><a href="2-st.html#SP10">&#167;10. Equations</a></li><li><a href="2-st.html#SP11">&#167;11. URL-style symbol names</a></li></ul><hr class="tocbar">
<p class="commentary firstcommentary"><a id="SP1" class="paragraph-anchor"></a><b>&#167;1. Symbols tables. </b></p>
<pre class="displayed-code all-displayed-code code-font">
<span class="reserved-syntax">typedef</span><span class="plain-syntax"> </span><span class="reserved-syntax">struct</span><span class="plain-syntax"> </span><span class="reserved-syntax">inter_symbols_table</span><span class="plain-syntax"> {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">struct</span><span class="plain-syntax"> </span><span class="reserved-syntax">inter_package</span><span class="plain-syntax"> *</span><span class="identifier-syntax">owning_package</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">struct</span><span class="plain-syntax"> </span><span class="identifier-syntax">dictionary</span><span class="plain-syntax"> *</span><span class="identifier-syntax">symbols_lookup</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">size</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">struct</span><span class="plain-syntax"> </span><span class="reserved-syntax">inter_symbol</span><span class="plain-syntax"> **</span><span class="identifier-syntax">symbol_array</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">n_index</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="constant-syntax">inter_ti</span><span class="plain-syntax"> </span><span class="identifier-syntax">next_free_ID</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">CLASS_DEFINITION</span>
<span class="plain-syntax">} </span><span class="reserved-syntax">inter_symbols_table</span><span class="plain-syntax">;</span>
</pre>
<ul class="endnotetexts"><li>The structure inter_symbols_table is accessed in 2/in, 2/tw, 2/pck, 2/sym, 2/cnn, 2/trn, 3/iibf and here.</li></ul>
<p class="commentary firstcommentary"><a id="SP2" class="paragraph-anchor"></a><b>&#167;2. </b></p>
<pre class="definitions code-font"><span class="definition-keyword">define</span> <span class="constant-syntax">INITIAL_INTER_SYMBOLS_ID_RANGE</span><span class="plain-syntax"> </span><span class="constant-syntax">16</span>
<span class="definition-keyword">define</span> <span class="constant-syntax">SYMBOLS_THRESHOLD</span><span class="plain-syntax"> </span><span class="constant-syntax">5</span>
</pre>
<pre class="displayed-code all-displayed-code code-font">
<span class="reserved-syntax">inter_symbols_table</span><span class="plain-syntax"> *</span><span class="function-syntax">InterSymbolsTables::new</span><button class="popup" onclick="togglePopup('usagePopup1')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup1">Usage of <span class="code-font"><span class="function-syntax">InterSymbolsTables::new</span></span>:<br/>The Warehouse - <a href="2-tw.html#SP3">&#167;3</a><br/>Inter in Binary Files - <a href="3-iibf.html#SP1_4_2">&#167;1.4.2</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">void</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">inter_symbols_table</span><span class="plain-syntax"> *</span><span class="identifier-syntax">ST</span><span class="plain-syntax"> = </span><span class="identifier-syntax">CREATE</span><span class="plain-syntax">(</span><span class="reserved-syntax">inter_symbols_table</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">ST</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">symbols_lookup</span><span class="plain-syntax"> = </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">ST</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">size</span><span class="plain-syntax"> = </span><span class="constant-syntax">INITIAL_INTER_SYMBOLS_ID_RANGE</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">ST</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">symbol_array</span><span class="plain-syntax"> = (</span><span class="reserved-syntax">inter_symbol</span><span class="plain-syntax"> **)</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">Memory::calloc</span><span class="plain-syntax">(</span><span class="constant-syntax">INITIAL_INTER_SYMBOLS_ID_RANGE</span><span class="plain-syntax">, </span><span class="reserved-syntax">sizeof</span><span class="plain-syntax">(</span><span class="reserved-syntax">inter_symbol</span><span class="plain-syntax"> *), </span><span class="constant-syntax">INTER_SYMBOLS_MREASON</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">for</span><span class="plain-syntax"> (</span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">i</span><span class="plain-syntax">=0; </span><span class="identifier-syntax">i</span><span class="plain-syntax">&lt;</span><span class="constant-syntax">INITIAL_INTER_SYMBOLS_ID_RANGE</span><span class="plain-syntax">; </span><span class="identifier-syntax">i</span><span class="plain-syntax">++) </span><span class="identifier-syntax">ST</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">symbol_array</span><span class="plain-syntax">[</span><span class="identifier-syntax">i</span><span class="plain-syntax">] = </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">ST</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">n_index</span><span class="plain-syntax"> = </span><span class="constant-syntax">0</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">ST</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">owning_package</span><span class="plain-syntax"> = </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">ST</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">next_free_ID</span><span class="plain-syntax"> = </span><span class="constant-syntax">SYMBOL_BASE_VAL</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">ST</span><span class="plain-syntax">;</span>
<span class="plain-syntax">}</span>
<span class="reserved-syntax">void</span><span class="plain-syntax"> </span><span class="function-syntax">InterSymbolsTables::log</span><button class="popup" onclick="togglePopup('usagePopup2')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup2">Usage of <span class="code-font"><span class="function-syntax">InterSymbolsTables::log</span></span>:<br/>Bytecode Module - <a href="1-bm.html#SP3_6">&#167;3.6</a></span></button><span class="plain-syntax">(</span><span class="identifier-syntax">OUTPUT_STREAM</span><span class="plain-syntax">, </span><span class="reserved-syntax">void</span><span class="plain-syntax"> *</span><span class="identifier-syntax">vst</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">inter_symbols_table</span><span class="plain-syntax"> *</span><span class="identifier-syntax">ST</span><span class="plain-syntax"> = (</span><span class="reserved-syntax">inter_symbols_table</span><span class="plain-syntax"> *) </span><span class="identifier-syntax">vst</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">ST</span><span class="plain-syntax"> == </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">) </span><span class="identifier-syntax">WRITE</span><span class="plain-syntax">(</span><span class="string-syntax">"&lt;null-stable&gt;"</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">else</span><span class="plain-syntax"> {</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">WRITE</span><span class="plain-syntax">(</span><span class="string-syntax">"&lt;%d:"</span><span class="plain-syntax">, </span><span class="identifier-syntax">ST</span><span class="plain-syntax">-&gt;</span><span class="identifier-syntax">allocation_id</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">ST</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">owning_package</span><span class="plain-syntax"> == </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">) </span><span class="identifier-syntax">WRITE</span><span class="plain-syntax">(</span><span class="string-syntax">"(root)"</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">else</span><span class="plain-syntax"> </span><span class="identifier-syntax">WRITE</span><span class="plain-syntax">(</span><span class="string-syntax">"$6"</span><span class="plain-syntax">, </span><span class="identifier-syntax">ST</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">owning_package</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">WRITE</span><span class="plain-syntax">(</span><span class="string-syntax">"&gt;"</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> }</span>
<span class="plain-syntax">}</span>
</pre>
<p class="commentary firstcommentary"><a id="SP3" class="paragraph-anchor"></a><b>&#167;3. </b></p>
<pre class="definitions code-font"><span class="definition-keyword">define</span> <span class="identifier-syntax">LOOP_OVER_SYMBOLS_TABLE</span><span class="plain-syntax">(</span><span class="identifier-syntax">S</span><span class="plain-syntax">, </span><span class="identifier-syntax">T</span><span class="plain-syntax">)</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">for</span><span class="plain-syntax"> (</span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">i</span><span class="plain-syntax">=0; </span><span class="identifier-syntax">i</span><span class="function-syntax">&lt;T-&gt;</span><span class="element-syntax">size</span><span class="plain-syntax">; </span><span class="identifier-syntax">i</span><span class="plain-syntax">++)</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">for</span><span class="plain-syntax"> (</span><span class="reserved-syntax">inter_symbol</span><span class="plain-syntax"> *</span><span class="identifier-syntax">S</span><span class="plain-syntax"> = </span><span class="identifier-syntax">T</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">symbol_array</span><span class="plain-syntax">[</span><span class="identifier-syntax">i</span><span class="plain-syntax">]; </span><span class="identifier-syntax">S</span><span class="plain-syntax">; </span><span class="identifier-syntax">S</span><span class="plain-syntax"> = </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">)</span>
</pre>
<pre class="displayed-code all-displayed-code code-font">
<span class="reserved-syntax">void</span><span class="plain-syntax"> </span><span class="function-syntax">InterSymbolsTables::write_declarations</span><button class="popup" onclick="togglePopup('usagePopup3')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup3">Usage of <span class="code-font"><span class="function-syntax">InterSymbolsTables::write_declarations</span></span>:<br/>The Package Construct - <a href="4-tpc3.html#SP2">&#167;2</a></span></button><span class="plain-syntax">(</span><span class="identifier-syntax">OUTPUT_STREAM</span><span class="plain-syntax">, </span><span class="reserved-syntax">inter_symbols_table</span><span class="plain-syntax"> *</span><span class="identifier-syntax">ST</span><span class="plain-syntax">, </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">L</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">ST</span><span class="plain-syntax"> == </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">) </span><span class="reserved-syntax">return</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">for</span><span class="plain-syntax"> (</span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">i</span><span class="plain-syntax">=0; </span><span class="identifier-syntax">i</span><span class="function-syntax">&lt;ST-&gt;</span><span class="element-syntax">size</span><span class="plain-syntax">; </span><span class="identifier-syntax">i</span><span class="plain-syntax">++) {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">inter_symbol</span><span class="plain-syntax"> *</span><span class="identifier-syntax">S</span><span class="plain-syntax"> = </span><span class="identifier-syntax">ST</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">symbol_array</span><span class="plain-syntax">[</span><span class="identifier-syntax">i</span><span class="plain-syntax">];</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">S</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><a href="2-sym.html#SP4" class="function-link"><span class="function-syntax">Inter::Symbols::write_declaration</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">OUT</span><span class="plain-syntax">, </span><span class="identifier-syntax">S</span><span class="plain-syntax">, </span><span class="identifier-syntax">L</span><span class="plain-syntax">); </span><span class="identifier-syntax">WRITE</span><span class="plain-syntax">(</span><span class="string-syntax">"\n"</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> }</span>
<span class="plain-syntax"> }</span>
<span class="plain-syntax">}</span>
<span class="reserved-syntax">inter_symbol</span><span class="plain-syntax"> *</span><span class="function-syntax">InterSymbolsTables::search_inner</span><button class="popup" onclick="togglePopup('usagePopup4')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup4">Usage of <span class="code-font"><span class="function-syntax">InterSymbolsTables::search_inner</span></span>:<br/><a href="2-st.html#SP4">&#167;4</a>, <a href="2-st.html#SP9">&#167;9</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">inter_symbols_table</span><span class="plain-syntax"> *</span><span class="identifier-syntax">T</span><span class="plain-syntax">, </span><span class="identifier-syntax">text_stream</span><span class="plain-syntax"> *</span><span class="identifier-syntax">S</span><span class="plain-syntax">, </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">create</span><span class="plain-syntax">, </span><span class="constant-syntax">inter_ti</span><span class="plain-syntax"> </span><span class="identifier-syntax">ID</span><span class="plain-syntax">, </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">equating</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">T</span><span class="plain-syntax"> == </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">) </span><span class="identifier-syntax">internal_error</span><span class="plain-syntax">(</span><span class="string-syntax">"no IST"</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">S</span><span class="plain-syntax"> == </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">) </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> ((</span><span class="identifier-syntax">T</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">symbols_lookup</span><span class="plain-syntax"> == </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">) &amp;&amp;</span>
<span class="plain-syntax"> (</span><span class="identifier-syntax">T</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">next_free_ID</span><span class="plain-syntax"> - </span><span class="constant-syntax">SYMBOL_BASE_VAL</span><span class="plain-syntax"> &gt;= </span><span class="constant-syntax">SYMBOLS_THRESHOLD</span><span class="plain-syntax">)) {</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">T</span><span class="plain-syntax">-&gt;</span><span class="identifier-syntax">symbols_lookup</span><span class="plain-syntax"> = </span><span class="identifier-syntax">Dictionaries::new</span><span class="plain-syntax">(</span><span class="constant-syntax">INITIAL_INTER_SYMBOLS_ID_RANGE</span><span class="plain-syntax">, </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">for</span><span class="plain-syntax"> (</span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">i</span><span class="plain-syntax">=0; </span><span class="identifier-syntax">i</span><span class="function-syntax">&lt;T-&gt;</span><span class="element-syntax">size</span><span class="plain-syntax">; </span><span class="identifier-syntax">i</span><span class="plain-syntax">++) {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">inter_symbol</span><span class="plain-syntax"> *</span><span class="identifier-syntax">A</span><span class="plain-syntax"> = </span><span class="identifier-syntax">T</span><span class="plain-syntax">-&gt;</span><span class="identifier-syntax">symbol_array</span><span class="plain-syntax">[</span><span class="identifier-syntax">i</span><span class="plain-syntax">];</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">A</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">Dictionaries::create</span><span class="plain-syntax">(</span><span class="identifier-syntax">T</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">symbols_lookup</span><span class="plain-syntax">, </span><span class="identifier-syntax">A</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">symbol_name</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">Dictionaries::write_value</span><span class="plain-syntax">(</span><span class="identifier-syntax">T</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">symbols_lookup</span><span class="plain-syntax">, </span><span class="identifier-syntax">A</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">symbol_name</span><span class="plain-syntax">, (</span><span class="reserved-syntax">void</span><span class="plain-syntax"> *) </span><span class="identifier-syntax">A</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> }</span>
<span class="plain-syntax"> }</span>
<span class="plain-syntax"> }</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">T</span><span class="plain-syntax">-&gt;</span><span class="identifier-syntax">symbols_lookup</span><span class="plain-syntax"> == </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">for</span><span class="plain-syntax"> (</span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">i</span><span class="plain-syntax">=0; </span><span class="identifier-syntax">i</span><span class="function-syntax">&lt;T-&gt;</span><span class="element-syntax">size</span><span class="plain-syntax">; </span><span class="identifier-syntax">i</span><span class="plain-syntax">++) {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">inter_symbol</span><span class="plain-syntax"> *</span><span class="identifier-syntax">A</span><span class="plain-syntax"> = </span><span class="identifier-syntax">T</span><span class="plain-syntax">-&gt;</span><span class="identifier-syntax">symbol_array</span><span class="plain-syntax">[</span><span class="identifier-syntax">i</span><span class="plain-syntax">];</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> ((</span><span class="identifier-syntax">A</span><span class="plain-syntax">) &amp;&amp; (</span><span class="identifier-syntax">Str::eq</span><span class="plain-syntax">(</span><span class="identifier-syntax">S</span><span class="plain-syntax">, </span><span class="identifier-syntax">A</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">symbol_name</span><span class="plain-syntax">))) {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">equating</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">while</span><span class="plain-syntax"> (</span><span class="identifier-syntax">A</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">equated_to</span><span class="plain-syntax">) </span><span class="identifier-syntax">A</span><span class="plain-syntax"> = </span><span class="identifier-syntax">A</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">equated_to</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> }</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">A</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> }</span>
<span class="plain-syntax"> }</span>
<span class="plain-syntax"> } </span><span class="reserved-syntax">else</span><span class="plain-syntax"> {</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">dict_entry</span><span class="plain-syntax"> *</span><span class="identifier-syntax">de</span><span class="plain-syntax"> = </span><span class="identifier-syntax">Dictionaries::find</span><span class="plain-syntax">(</span><span class="identifier-syntax">T</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">symbols_lookup</span><span class="plain-syntax">, </span><span class="identifier-syntax">S</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">de</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">inter_symbol</span><span class="plain-syntax"> *</span><span class="identifier-syntax">A</span><span class="plain-syntax"> = (</span><span class="reserved-syntax">inter_symbol</span><span class="plain-syntax"> *) </span><span class="identifier-syntax">Dictionaries::read_value</span><span class="plain-syntax">(</span><span class="identifier-syntax">T</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">symbols_lookup</span><span class="plain-syntax">, </span><span class="identifier-syntax">S</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">A</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">equating</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">while</span><span class="plain-syntax"> (</span><span class="identifier-syntax">A</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">equated_to</span><span class="plain-syntax">) </span><span class="identifier-syntax">A</span><span class="plain-syntax"> = </span><span class="identifier-syntax">A</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">equated_to</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> }</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">A</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> }</span>
<span class="plain-syntax"> }</span>
<span class="plain-syntax"> }</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">create</span><span class="plain-syntax"> == </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">) </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">ID</span><span class="plain-syntax"> == </span><span class="constant-syntax">0</span><span class="plain-syntax">) </span><span class="identifier-syntax">ID</span><span class="plain-syntax"> = </span><span class="identifier-syntax">T</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">next_free_ID</span><span class="plain-syntax">++;</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">inter_symbol</span><span class="plain-syntax"> *</span><span class="identifier-syntax">ST</span><span class="plain-syntax"> = </span><a href="2-sym.html#SP2" class="function-link"><span class="function-syntax">Inter::Symbols::new</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">S</span><span class="plain-syntax">, </span><span class="identifier-syntax">T</span><span class="plain-syntax">, </span><span class="identifier-syntax">ID</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">T</span><span class="plain-syntax">-&gt;</span><span class="identifier-syntax">symbols_lookup</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">Dictionaries::create</span><span class="plain-syntax">(</span><span class="identifier-syntax">T</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">symbols_lookup</span><span class="plain-syntax">, </span><span class="identifier-syntax">S</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">Dictionaries::write_value</span><span class="plain-syntax">(</span><span class="identifier-syntax">T</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">symbols_lookup</span><span class="plain-syntax">, </span><span class="identifier-syntax">S</span><span class="plain-syntax">, (</span><span class="reserved-syntax">void</span><span class="plain-syntax"> *) </span><span class="identifier-syntax">ST</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> }</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">index</span><span class="plain-syntax"> = (</span><span class="reserved-syntax">int</span><span class="plain-syntax">) </span><span class="identifier-syntax">ID</span><span class="plain-syntax"> - (</span><span class="reserved-syntax">int</span><span class="plain-syntax">) </span><span class="constant-syntax">SYMBOL_BASE_VAL</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">index</span><span class="plain-syntax"> &lt; </span><span class="constant-syntax">0</span><span class="plain-syntax">) </span><span class="identifier-syntax">internal_error</span><span class="plain-syntax">(</span><span class="string-syntax">"bad symbol ID index"</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">index</span><span class="plain-syntax"> &gt;= </span><span class="identifier-syntax">T</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">size</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">new_size</span><span class="plain-syntax"> = </span><span class="identifier-syntax">T</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">size</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">while</span><span class="plain-syntax"> (</span><span class="identifier-syntax">index</span><span class="plain-syntax"> &gt;= </span><span class="identifier-syntax">new_size</span><span class="plain-syntax">) </span><span class="identifier-syntax">new_size</span><span class="plain-syntax"> = </span><span class="identifier-syntax">new_size</span><span class="plain-syntax"> * </span><span class="constant-syntax">4</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">inter_symbol</span><span class="plain-syntax"> **</span><span class="identifier-syntax">enlarged</span><span class="plain-syntax"> = (</span><span class="reserved-syntax">inter_symbol</span><span class="plain-syntax"> **)</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">Memory::calloc</span><span class="plain-syntax">(</span><span class="identifier-syntax">new_size</span><span class="plain-syntax">, </span><span class="reserved-syntax">sizeof</span><span class="plain-syntax">(</span><span class="reserved-syntax">inter_symbol</span><span class="plain-syntax"> *), </span><span class="constant-syntax">INTER_SYMBOLS_MREASON</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">for</span><span class="plain-syntax"> (</span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">i</span><span class="plain-syntax">=0; </span><span class="identifier-syntax">i</span><span class="plain-syntax">&lt;</span><span class="identifier-syntax">new_size</span><span class="plain-syntax">; </span><span class="identifier-syntax">i</span><span class="plain-syntax">++)</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">i</span><span class="plain-syntax"> &lt; </span><span class="identifier-syntax">T</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">size</span><span class="plain-syntax">)</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">enlarged</span><span class="plain-syntax">[</span><span class="identifier-syntax">i</span><span class="plain-syntax">] = </span><span class="identifier-syntax">T</span><span class="plain-syntax">-&gt;</span><span class="identifier-syntax">symbol_array</span><span class="plain-syntax">[</span><span class="identifier-syntax">i</span><span class="plain-syntax">];</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">else</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">enlarged</span><span class="plain-syntax">[</span><span class="identifier-syntax">i</span><span class="plain-syntax">] = </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">Memory::I7_free</span><span class="plain-syntax">(</span><span class="identifier-syntax">T</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">symbol_array</span><span class="plain-syntax">, </span><span class="constant-syntax">INTER_SYMBOLS_MREASON</span><span class="plain-syntax">, </span><span class="identifier-syntax">T</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">size</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">T</span><span class="plain-syntax">-&gt;</span><span class="identifier-syntax">size</span><span class="plain-syntax"> = </span><span class="identifier-syntax">new_size</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">T</span><span class="plain-syntax">-&gt;</span><span class="identifier-syntax">symbol_array</span><span class="plain-syntax"> = </span><span class="identifier-syntax">enlarged</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> }</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">index</span><span class="plain-syntax"> &gt;= </span><span class="identifier-syntax">T</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">size</span><span class="plain-syntax">) </span><span class="identifier-syntax">internal_error</span><span class="plain-syntax">(</span><span class="string-syntax">"inter symbols expansion failed"</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">T</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">symbol_array</span><span class="plain-syntax">[</span><span class="identifier-syntax">index</span><span class="plain-syntax">] = </span><span class="identifier-syntax">ST</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">ST</span><span class="plain-syntax">;</span>
<span class="plain-syntax">}</span>
</pre>
<p class="commentary firstcommentary"><a id="SP4" class="paragraph-anchor"></a><b>&#167;4. From name to symbol. </b></p>
<pre class="displayed-code all-displayed-code code-font">
<span class="reserved-syntax">inter_symbol</span><span class="plain-syntax"> *</span><span class="function-syntax">InterSymbolsTables::symbol_from_name</span><button class="popup" onclick="togglePopup('usagePopup5')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup5">Usage of <span class="code-font"><span class="function-syntax">InterSymbolsTables::symbol_from_name</span></span>:<br/><a href="2-st.html#SP5">&#167;5</a>, <a href="2-st.html#SP11">&#167;11</a><br/>Packages - <a href="2-pck.html#SP3">&#167;3</a><br/>Transmigration - <a href="2-trn.html#SP3_1">&#167;3.1</a>, <a href="2-trn.html#SP3_2">&#167;3.2</a><br/>Inter in Text Files - <a href="3-iitf.html#SP1">&#167;1</a><br/>Inter Data Types - <a href="3-idt.html#SP3">&#167;3</a><br/>Metadata - <a href="3-mtd.html#SP1">&#167;1</a><br/>The Pragma Construct - <a href="4-tpc.html#SP2">&#167;2</a><br/>The Append Construct - <a href="4-tac.html#SP2">&#167;2</a><br/>The Label Construct - <a href="5-tlc.html#SP2">&#167;2</a><br/>The Inv Construct - <a href="5-tic.html#SP2">&#167;2</a><br/>The Lab Construct - <a href="5-tlc3.html#SP2">&#167;2</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">inter_symbols_table</span><span class="plain-syntax"> *</span><span class="identifier-syntax">T</span><span class="plain-syntax">, </span><span class="identifier-syntax">text_stream</span><span class="plain-syntax"> *</span><span class="identifier-syntax">S</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><a href="2-st.html#SP3" class="function-link"><span class="function-syntax">InterSymbolsTables::search_inner</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">T</span><span class="plain-syntax">, </span><span class="identifier-syntax">S</span><span class="plain-syntax">, </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">, </span><span class="constant-syntax">0</span><span class="plain-syntax">, </span><span class="identifier-syntax">TRUE</span><span class="plain-syntax">);</span>
<span class="plain-syntax">}</span>
<span class="reserved-syntax">inter_symbol</span><span class="plain-syntax"> *</span><span class="function-syntax">InterSymbolsTables::symbol_from_name_not_equating</span><button class="popup" onclick="togglePopup('usagePopup6')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup6">Usage of <span class="code-font"><span class="function-syntax">InterSymbolsTables::symbol_from_name_not_equating</span></span>:<br/>Connectors - <a href="2-cnn.html#SP1">&#167;1</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">inter_symbols_table</span><span class="plain-syntax"> *</span><span class="identifier-syntax">T</span><span class="plain-syntax">, </span><span class="identifier-syntax">text_stream</span><span class="plain-syntax"> *</span><span class="identifier-syntax">S</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><a href="2-st.html#SP3" class="function-link"><span class="function-syntax">InterSymbolsTables::search_inner</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">T</span><span class="plain-syntax">, </span><span class="identifier-syntax">S</span><span class="plain-syntax">, </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">, </span><span class="constant-syntax">0</span><span class="plain-syntax">, </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">);</span>
<span class="plain-syntax">}</span>
<span class="reserved-syntax">inter_symbol</span><span class="plain-syntax"> *</span><span class="function-syntax">InterSymbolsTables::symbol_from_name_creating</span><button class="popup" onclick="togglePopup('usagePopup7')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup7">Usage of <span class="code-font"><span class="function-syntax">InterSymbolsTables::symbol_from_name_creating</span></span>:<br/><a href="2-st.html#SP5">&#167;5</a><br/>Transmigration - <a href="2-trn.html#SP3_1_1">&#167;3.1.1</a>, <a href="2-trn.html#SP3_2_1">&#167;3.2.1</a><br/>Inter in Text Files - <a href="3-iitf.html#SP1">&#167;1</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">inter_symbols_table</span><span class="plain-syntax"> *</span><span class="identifier-syntax">T</span><span class="plain-syntax">, </span><span class="identifier-syntax">text_stream</span><span class="plain-syntax"> *</span><span class="identifier-syntax">S</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><a href="2-st.html#SP3" class="function-link"><span class="function-syntax">InterSymbolsTables::search_inner</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">T</span><span class="plain-syntax">, </span><span class="identifier-syntax">S</span><span class="plain-syntax">, </span><span class="identifier-syntax">TRUE</span><span class="plain-syntax">, </span><span class="constant-syntax">0</span><span class="plain-syntax">, </span><span class="identifier-syntax">TRUE</span><span class="plain-syntax">);</span>
<span class="plain-syntax">}</span>
<span class="reserved-syntax">inter_symbol</span><span class="plain-syntax"> *</span><span class="function-syntax">InterSymbolsTables::symbol_from_name_creating_at_ID</span><button class="popup" onclick="togglePopup('usagePopup8')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup8">Usage of <span class="code-font"><span class="function-syntax">InterSymbolsTables::symbol_from_name_creating_at_ID</span></span>:<br/>Inter in Binary Files - <a href="3-iibf.html#SP1_4_2">&#167;1.4.2</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">inter_symbols_table</span><span class="plain-syntax"> *</span><span class="identifier-syntax">T</span><span class="plain-syntax">, </span><span class="identifier-syntax">text_stream</span><span class="plain-syntax"> *</span><span class="identifier-syntax">S</span><span class="plain-syntax">, </span><span class="constant-syntax">inter_ti</span><span class="plain-syntax"> </span><span class="identifier-syntax">ID</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><a href="2-st.html#SP3" class="function-link"><span class="function-syntax">InterSymbolsTables::search_inner</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">T</span><span class="plain-syntax">, </span><span class="identifier-syntax">S</span><span class="plain-syntax">, </span><span class="identifier-syntax">TRUE</span><span class="plain-syntax">, </span><span class="identifier-syntax">ID</span><span class="plain-syntax">, </span><span class="identifier-syntax">TRUE</span><span class="plain-syntax">);</span>
<span class="plain-syntax">}</span>
<span class="reserved-syntax">inter_symbol</span><span class="plain-syntax"> *</span><span class="function-syntax">InterSymbolsTables::symbol_from_name_in_main</span><span class="plain-syntax">(</span><span class="reserved-syntax">inter_tree</span><span class="plain-syntax"> *</span><span class="identifier-syntax">I</span><span class="plain-syntax">, </span><span class="identifier-syntax">text_stream</span><span class="plain-syntax"> *</span><span class="identifier-syntax">S</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><a href="2-st.html#SP4" class="function-link"><span class="function-syntax">InterSymbolsTables::symbol_from_name</span></a><span class="plain-syntax">(</span><a href="2-pck.html#SP3" class="function-link"><span class="function-syntax">Inter::Packages::scope</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">Site::main_package_if_it_exists</span><span class="plain-syntax">(</span><span class="identifier-syntax">I</span><span class="plain-syntax">)), </span><span class="identifier-syntax">S</span><span class="plain-syntax">);</span>
<span class="plain-syntax">}</span>
<span class="reserved-syntax">inter_symbol</span><span class="plain-syntax"> *</span><span class="function-syntax">InterSymbolsTables::symbol_from_name_in_basics</span><span class="plain-syntax">(</span><span class="reserved-syntax">inter_tree</span><span class="plain-syntax"> *</span><span class="identifier-syntax">I</span><span class="plain-syntax">, </span><span class="identifier-syntax">text_stream</span><span class="plain-syntax"> *</span><span class="identifier-syntax">S</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">inter_package</span><span class="plain-syntax"> *</span><span class="identifier-syntax">P</span><span class="plain-syntax"> = </span><a href="2-pck.html#SP3" class="function-link"><span class="function-syntax">Inter::Packages::basics</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">I</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">P</span><span class="plain-syntax"> == </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">) </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><a href="2-st.html#SP4" class="function-link"><span class="function-syntax">InterSymbolsTables::symbol_from_name</span></a><span class="plain-syntax">(</span><a href="2-pck.html#SP3" class="function-link"><span class="function-syntax">Inter::Packages::scope</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">P</span><span class="plain-syntax">), </span><span class="identifier-syntax">S</span><span class="plain-syntax">);</span>
<span class="plain-syntax">}</span>
<span class="reserved-syntax">inter_symbol</span><span class="plain-syntax"> *</span><span class="function-syntax">InterSymbolsTables::symbol_from_name_in_veneer</span><span class="plain-syntax">(</span><span class="reserved-syntax">inter_tree</span><span class="plain-syntax"> *</span><span class="identifier-syntax">I</span><span class="plain-syntax">, </span><span class="identifier-syntax">text_stream</span><span class="plain-syntax"> *</span><span class="identifier-syntax">S</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">inter_package</span><span class="plain-syntax"> *</span><span class="identifier-syntax">P</span><span class="plain-syntax"> = </span><a href="2-pck.html#SP3" class="function-link"><span class="function-syntax">Inter::Packages::veneer</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">I</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">P</span><span class="plain-syntax"> == </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">) </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><a href="2-st.html#SP4" class="function-link"><span class="function-syntax">InterSymbolsTables::symbol_from_name</span></a><span class="plain-syntax">(</span><a href="2-pck.html#SP3" class="function-link"><span class="function-syntax">Inter::Packages::scope</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">P</span><span class="plain-syntax">), </span><span class="identifier-syntax">S</span><span class="plain-syntax">);</span>
<span class="plain-syntax">}</span>
<span class="reserved-syntax">inter_symbol</span><span class="plain-syntax"> *</span><span class="function-syntax">InterSymbolsTables::symbol_from_name_in_template</span><span class="plain-syntax">(</span><span class="reserved-syntax">inter_tree</span><span class="plain-syntax"> *</span><span class="identifier-syntax">I</span><span class="plain-syntax">, </span><span class="identifier-syntax">text_stream</span><span class="plain-syntax"> *</span><span class="identifier-syntax">S</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">inter_package</span><span class="plain-syntax"> *</span><span class="identifier-syntax">P</span><span class="plain-syntax"> = </span><a href="2-pck.html#SP3" class="function-link"><span class="function-syntax">Inter::Packages::template</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">I</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">P</span><span class="plain-syntax"> == </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">) </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><a href="2-st.html#SP4" class="function-link"><span class="function-syntax">InterSymbolsTables::symbol_from_name</span></a><span class="plain-syntax">(</span><a href="2-pck.html#SP3" class="function-link"><span class="function-syntax">Inter::Packages::scope</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">P</span><span class="plain-syntax">), </span><span class="identifier-syntax">S</span><span class="plain-syntax">);</span>
<span class="plain-syntax">}</span>
<span class="reserved-syntax">inter_symbol</span><span class="plain-syntax"> *</span><span class="function-syntax">InterSymbolsTables::symbol_from_name_in_main_or_basics</span><span class="plain-syntax">(</span><span class="reserved-syntax">inter_tree</span><span class="plain-syntax"> *</span><span class="identifier-syntax">I</span><span class="plain-syntax">, </span><span class="identifier-syntax">text_stream</span><span class="plain-syntax"> *</span><span class="identifier-syntax">S</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">inter_symbol</span><span class="plain-syntax"> *</span><span class="identifier-syntax">symbol</span><span class="plain-syntax"> = </span><a href="2-st.html#SP4" class="function-link"><span class="function-syntax">InterSymbolsTables::symbol_from_name_in_basics</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">I</span><span class="plain-syntax">, </span><span class="identifier-syntax">S</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">symbol</span><span class="plain-syntax"> == </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">) </span><span class="identifier-syntax">symbol</span><span class="plain-syntax"> = </span><a href="2-st.html#SP4" class="function-link"><span class="function-syntax">InterSymbolsTables::symbol_from_name_in_veneer</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">I</span><span class="plain-syntax">, </span><span class="identifier-syntax">S</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">symbol</span><span class="plain-syntax"> == </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">) </span><span class="identifier-syntax">symbol</span><span class="plain-syntax"> = </span><a href="2-st.html#SP4" class="function-link"><span class="function-syntax">InterSymbolsTables::symbol_from_name_in_main</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">I</span><span class="plain-syntax">, </span><span class="identifier-syntax">S</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">symbol</span><span class="plain-syntax">;</span>
<span class="plain-syntax">}</span>
</pre>
<p class="commentary firstcommentary"><a id="SP5" class="paragraph-anchor"></a><b>&#167;5. Creation by unique name. </b></p>
<pre class="displayed-code all-displayed-code code-font">
<span class="identifier-syntax">text_stream</span><span class="plain-syntax"> *</span><span class="function-syntax">InterSymbolsTables::render_identifier_unique</span><button class="popup" onclick="togglePopup('usagePopup9')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup9">Usage of <span class="code-font"><span class="function-syntax">InterSymbolsTables::render_identifier_unique</span></span>:<br/><a href="2-st.html#SP9">&#167;9</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">inter_symbols_table</span><span class="plain-syntax"> *</span><span class="identifier-syntax">T</span><span class="plain-syntax">, </span><span class="identifier-syntax">text_stream</span><span class="plain-syntax"> *</span><span class="identifier-syntax">name</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">inter_symbol</span><span class="plain-syntax"> *</span><span class="identifier-syntax">ST</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">N</span><span class="plain-syntax"> = </span><span class="constant-syntax">1</span><span class="plain-syntax">, </span><span class="identifier-syntax">A</span><span class="plain-syntax"> = </span><span class="constant-syntax">0</span><span class="plain-syntax">, </span><span class="identifier-syntax">still_unduplicated</span><span class="plain-syntax"> = </span><span class="identifier-syntax">TRUE</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">while</span><span class="plain-syntax"> ((</span><span class="identifier-syntax">ST</span><span class="plain-syntax"> = </span><a href="2-st.html#SP4" class="function-link"><span class="function-syntax">InterSymbolsTables::symbol_from_name</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">T</span><span class="plain-syntax">, </span><span class="identifier-syntax">name</span><span class="plain-syntax">)) != </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">still_unduplicated</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">name</span><span class="plain-syntax"> = </span><span class="identifier-syntax">Str::duplicate</span><span class="plain-syntax">(</span><span class="identifier-syntax">name</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">still_unduplicated</span><span class="plain-syntax"> = </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> }</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">TEMPORARY_TEXT</span><span class="plain-syntax">(</span><span class="identifier-syntax">TAIL</span><span class="plain-syntax">)</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">WRITE_TO</span><span class="plain-syntax">(</span><span class="identifier-syntax">TAIL</span><span class="plain-syntax">, </span><span class="string-syntax">"_%d"</span><span class="plain-syntax">, </span><span class="identifier-syntax">N</span><span class="plain-syntax">++);</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">A</span><span class="plain-syntax"> &gt; </span><span class="constant-syntax">0</span><span class="plain-syntax">) </span><span class="identifier-syntax">Str::truncate</span><span class="plain-syntax">(</span><span class="identifier-syntax">name</span><span class="plain-syntax">, </span><span class="identifier-syntax">Str::len</span><span class="plain-syntax">(</span><span class="identifier-syntax">name</span><span class="plain-syntax">) - </span><span class="identifier-syntax">A</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">A</span><span class="plain-syntax"> = </span><span class="identifier-syntax">Str::len</span><span class="plain-syntax">(</span><span class="identifier-syntax">TAIL</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">WRITE_TO</span><span class="plain-syntax">(</span><span class="identifier-syntax">name</span><span class="plain-syntax">, </span><span class="string-syntax">"%S"</span><span class="plain-syntax">, </span><span class="identifier-syntax">TAIL</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">Str::truncate</span><span class="plain-syntax">(</span><span class="identifier-syntax">name</span><span class="plain-syntax">, </span><span class="constant-syntax">31</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">DISCARD_TEXT</span><span class="plain-syntax">(</span><span class="identifier-syntax">TAIL</span><span class="plain-syntax">)</span>
<span class="plain-syntax"> }</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">name</span><span class="plain-syntax">;</span>
<span class="plain-syntax">}</span>
<span class="reserved-syntax">inter_symbol</span><span class="plain-syntax"> *</span><span class="function-syntax">InterSymbolsTables::create_with_unique_name</span><button class="popup" onclick="togglePopup('usagePopup10')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup10">Usage of <span class="code-font"><span class="function-syntax">InterSymbolsTables::create_with_unique_name</span></span>:<br/>Connectors - <a href="2-cnn.html#SP1">&#167;1</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">inter_symbols_table</span><span class="plain-syntax"> *</span><span class="identifier-syntax">T</span><span class="plain-syntax">, </span><span class="identifier-syntax">text_stream</span><span class="plain-syntax"> *</span><span class="identifier-syntax">name</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><a href="2-st.html#SP4" class="function-link"><span class="function-syntax">InterSymbolsTables::symbol_from_name_creating</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">T</span><span class="plain-syntax">,</span>
<span class="plain-syntax"> </span><a href="2-st.html#SP5" class="function-link"><span class="function-syntax">InterSymbolsTables::render_identifier_unique</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">T</span><span class="plain-syntax">, </span><span class="identifier-syntax">name</span><span class="plain-syntax">));</span>
<span class="plain-syntax">}</span>
</pre>
<p class="commentary firstcommentary"><a id="SP6" class="paragraph-anchor"></a><b>&#167;6. From symbol to ID. </b>Symbols are represented in Inter bytecode by their ID numbers, but these only
make sense in the context of a symbols table: i.e., the same ID can have
a different meaning in one inter frame than in another. We provide two ways
to access this: one following equations, the other not.
</p>
<pre class="displayed-code all-displayed-code code-font">
<span class="reserved-syntax">inter_symbol</span><span class="plain-syntax"> *</span><span class="function-syntax">InterSymbolsTables::unequated_symbol_from_id</span><button class="popup" onclick="togglePopup('usagePopup11')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup11">Usage of <span class="code-font"><span class="function-syntax">InterSymbolsTables::unequated_symbol_from_id</span></span>:<br/>Verifying Inter - <a href="3-vi.html#SP1">&#167;1</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">inter_symbols_table</span><span class="plain-syntax"> *</span><span class="identifier-syntax">T</span><span class="plain-syntax">, </span><span class="constant-syntax">inter_ti</span><span class="plain-syntax"> </span><span class="identifier-syntax">ID</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">T</span><span class="plain-syntax"> == </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">) </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">index</span><span class="plain-syntax"> = (</span><span class="reserved-syntax">int</span><span class="plain-syntax">) </span><span class="identifier-syntax">ID</span><span class="plain-syntax"> - (</span><span class="reserved-syntax">int</span><span class="plain-syntax">) </span><span class="constant-syntax">SYMBOL_BASE_VAL</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">index</span><span class="plain-syntax"> &lt; </span><span class="constant-syntax">0</span><span class="plain-syntax">) </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">index</span><span class="plain-syntax"> &gt;= </span><span class="identifier-syntax">T</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">size</span><span class="plain-syntax">) </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">T</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">symbol_array</span><span class="plain-syntax">[</span><span class="identifier-syntax">index</span><span class="plain-syntax">];</span>
<span class="plain-syntax">}</span>
<span class="reserved-syntax">inter_symbol</span><span class="plain-syntax"> *</span><span class="function-syntax">InterSymbolsTables::symbol_from_id</span><button class="popup" onclick="togglePopup('usagePopup12')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup12">Usage of <span class="code-font"><span class="function-syntax">InterSymbolsTables::symbol_from_id</span></span>:<br/><a href="2-st.html#SP7">&#167;7</a><br/>Symbols - <a href="2-sym.html#SP4">&#167;4</a><br/>Transmigration - <a href="2-trn.html#SP3">&#167;3</a>, <a href="2-trn.html#SP3_2">&#167;3.2</a><br/>Inter in Binary Files - <a href="3-iibf.html#SP1_5">&#167;1.5</a><br/>Verifying Inter - <a href="3-vi.html#SP1">&#167;1</a><br/>Inter Data Types - <a href="3-idt.html#SP2">&#167;2</a>, <a href="3-idt.html#SP3">&#167;3</a><br/>Metadata - <a href="3-mtd.html#SP1">&#167;1</a><br/>The Append Construct - <a href="4-tac.html#SP2">&#167;2</a><br/>The Kind Construct - <a href="4-tkc.html#SP2">&#167;2</a><br/>The Constant Construct - <a href="4-tcc2.html#SP2">&#167;2</a><br/>The Instance Construct - <a href="4-tic.html#SP2">&#167;2</a><br/>The PropertyValue Construct - <a href="4-tpc5.html#SP2">&#167;2</a><br/>The Permission Construct - <a href="4-tpc6.html#SP2">&#167;2</a><br/>The Primitive Construct - <a href="4-tpc7.html#SP2">&#167;2</a><br/>The Ref Construct - <a href="5-trc.html#SP2">&#167;2</a><br/>The Val Construct - <a href="5-tvc.html#SP2">&#167;2</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">inter_symbols_table</span><span class="plain-syntax"> *</span><span class="identifier-syntax">T</span><span class="plain-syntax">, </span><span class="constant-syntax">inter_ti</span><span class="plain-syntax"> </span><span class="identifier-syntax">ID</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">inter_symbol</span><span class="plain-syntax"> *</span><span class="identifier-syntax">S</span><span class="plain-syntax"> = </span><a href="2-st.html#SP6" class="function-link"><span class="function-syntax">InterSymbolsTables::unequated_symbol_from_id</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">T</span><span class="plain-syntax">, </span><span class="identifier-syntax">ID</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">while</span><span class="plain-syntax"> ((</span><span class="identifier-syntax">S</span><span class="plain-syntax">) &amp;&amp; (</span><span class="identifier-syntax">S</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">equated_to</span><span class="plain-syntax">)) </span><span class="identifier-syntax">S</span><span class="plain-syntax"> = </span><span class="identifier-syntax">S</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">equated_to</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">S</span><span class="plain-syntax">;</span>
<span class="plain-syntax">}</span>
</pre>
<p class="commentary firstcommentary"><a id="SP7" class="paragraph-anchor"></a><b>&#167;7. </b>It's convenient to have some abbreviations for common ways to access the above.
</p>
<pre class="displayed-code all-displayed-code code-font">
<span class="reserved-syntax">inter_symbol</span><span class="plain-syntax"> *</span><span class="function-syntax">InterSymbolsTables::symbol_from_frame_data</span><button class="popup" onclick="togglePopup('usagePopup13')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup13">Usage of <span class="code-font"><span class="function-syntax">InterSymbolsTables::symbol_from_frame_data</span></span>:<br/>The Pragma Construct - <a href="4-tpc.html#SP2">&#167;2</a><br/>The Append Construct - <a href="4-tac.html#SP2">&#167;2</a><br/>The PackageType Construct - <a href="4-tpc2.html#SP2">&#167;2</a><br/>The Kind Construct - <a href="4-tkc.html#SP2">&#167;2</a><br/>The DefaultValue Construct - <a href="4-tdc.html#SP2">&#167;2</a><br/>The Variable Construct - <a href="4-tvc2.html#SP2">&#167;2</a><br/>The Constant Construct - <a href="4-tcc2.html#SP2">&#167;2</a><br/>The Instance Construct - <a href="4-tic.html#SP2">&#167;2</a><br/>The Property Construct - <a href="4-tpc4.html#SP2">&#167;2</a><br/>The PropertyValue Construct - <a href="4-tpc5.html#SP2">&#167;2</a><br/>The Permission Construct - <a href="4-tpc6.html#SP2">&#167;2</a><br/>The Primitive Construct - <a href="4-tpc7.html#SP2">&#167;2</a><br/>The Local Construct - <a href="5-tlc2.html#SP2">&#167;2</a><br/>The Inv Construct - <a href="5-tic.html#SP2">&#167;2</a><br/>The Ref Construct - <a href="5-trc.html#SP2">&#167;2</a><br/>The Val Construct - <a href="5-tvc.html#SP2">&#167;2</a><br/>The Cast Construct - <a href="5-tcc2.html#SP2">&#167;2</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">inter_tree_node</span><span class="plain-syntax"> *</span><span class="identifier-syntax">P</span><span class="plain-syntax">, </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">x</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><a href="2-st.html#SP6" class="function-link"><span class="function-syntax">InterSymbolsTables::symbol_from_id</span></a><span class="plain-syntax">(</span><a href="2-pck.html#SP3" class="function-link"><span class="function-syntax">Inter::Packages::scope_of</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">P</span><span class="plain-syntax">), </span><span class="identifier-syntax">P</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">W</span><span class="plain-syntax">.</span><span class="element-syntax">data</span><span class="plain-syntax">[</span><span class="identifier-syntax">x</span><span class="plain-syntax">]);</span>
<span class="plain-syntax">}</span>
<span class="reserved-syntax">inter_symbol</span><span class="plain-syntax"> *</span><span class="function-syntax">InterSymbolsTables::global_symbol_from_frame_data</span><button class="popup" onclick="togglePopup('usagePopup14')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup14">Usage of <span class="code-font"><span class="function-syntax">InterSymbolsTables::global_symbol_from_frame_data</span></span>:<br/>The Package Construct - <a href="4-tpc3.html#SP2">&#167;2</a><br/>The Inv Construct - <a href="5-tic.html#SP2">&#167;2</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">inter_tree_node</span><span class="plain-syntax"> *</span><span class="identifier-syntax">P</span><span class="plain-syntax">, </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">x</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><a href="2-st.html#SP6" class="function-link"><span class="function-syntax">InterSymbolsTables::symbol_from_id</span></a><span class="plain-syntax">(</span><a href="2-in.html#SP3" class="function-link"><span class="function-syntax">Inode::globals</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">P</span><span class="plain-syntax">), </span><span class="identifier-syntax">P</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">W</span><span class="plain-syntax">.</span><span class="element-syntax">data</span><span class="plain-syntax">[</span><span class="identifier-syntax">x</span><span class="plain-syntax">]);</span>
<span class="plain-syntax">}</span>
<span class="reserved-syntax">inter_symbol</span><span class="plain-syntax"> *</span><span class="function-syntax">InterSymbolsTables::local_symbol_from_id</span><button class="popup" onclick="togglePopup('usagePopup15')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup15">Usage of <span class="code-font"><span class="function-syntax">InterSymbolsTables::local_symbol_from_id</span></span>:<br/>The Label Construct - <a href="5-tlc.html#SP2">&#167;2</a><br/>The Local Construct - <a href="5-tlc2.html#SP2">&#167;2</a><br/>The Lab Construct - <a href="5-tlc3.html#SP2">&#167;2</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">inter_package</span><span class="plain-syntax"> *</span><span class="identifier-syntax">owner</span><span class="plain-syntax">, </span><span class="constant-syntax">inter_ti</span><span class="plain-syntax"> </span><span class="identifier-syntax">ID</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><a href="2-st.html#SP6" class="function-link"><span class="function-syntax">InterSymbolsTables::symbol_from_id</span></a><span class="plain-syntax">(</span><a href="2-pck.html#SP3" class="function-link"><span class="function-syntax">Inter::Packages::scope</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">owner</span><span class="plain-syntax">), </span><span class="identifier-syntax">ID</span><span class="plain-syntax">);</span>
<span class="plain-syntax">}</span>
<span class="reserved-syntax">inter_symbol</span><span class="plain-syntax"> *</span><span class="function-syntax">InterSymbolsTables::symbol_from_data_pair_and_table</span><button class="popup" onclick="togglePopup('usagePopup16')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup16">Usage of <span class="code-font"><span class="function-syntax">InterSymbolsTables::symbol_from_data_pair_and_table</span></span>:<br/>Inter Data Types - <a href="3-idt.html#SP2">&#167;2</a><br/>The Constant Construct - <a href="4-tcc2.html#SP2">&#167;2</a></span></button><span class="plain-syntax">(</span><span class="constant-syntax">inter_ti</span><span class="plain-syntax"> </span><span class="identifier-syntax">val1</span><span class="plain-syntax">, </span><span class="constant-syntax">inter_ti</span><span class="plain-syntax"> </span><span class="identifier-syntax">val2</span><span class="plain-syntax">, </span><span class="reserved-syntax">inter_symbols_table</span><span class="plain-syntax"> *</span><span class="identifier-syntax">T</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">val1</span><span class="plain-syntax"> == </span><span class="constant-syntax">ALIAS_IVAL</span><span class="plain-syntax">) </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><a href="2-st.html#SP6" class="function-link"><span class="function-syntax">InterSymbolsTables::symbol_from_id</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">T</span><span class="plain-syntax">, </span><span class="identifier-syntax">val2</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">;</span>
<span class="plain-syntax">}</span>
<span class="reserved-syntax">inter_symbol</span><span class="plain-syntax"> *</span><span class="function-syntax">InterSymbolsTables::symbol_from_data_pair_and_frame</span><span class="plain-syntax">(</span><span class="constant-syntax">inter_ti</span><span class="plain-syntax"> </span><span class="identifier-syntax">val1</span><span class="plain-syntax">, </span><span class="constant-syntax">inter_ti</span><span class="plain-syntax"> </span><span class="identifier-syntax">val2</span><span class="plain-syntax">, </span><span class="reserved-syntax">inter_tree_node</span><span class="plain-syntax"> *</span><span class="identifier-syntax">P</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><a href="2-st.html#SP7" class="function-link"><span class="function-syntax">InterSymbolsTables::symbol_from_data_pair_and_table</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">val1</span><span class="plain-syntax">, </span><span class="identifier-syntax">val2</span><span class="plain-syntax">, </span><a href="2-pck.html#SP3" class="function-link"><span class="function-syntax">Inter::Packages::scope_of</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">P</span><span class="plain-syntax">));</span>
<span class="plain-syntax">}</span>
</pre>
<p class="commentary firstcommentary"><a id="SP8" class="paragraph-anchor"></a><b>&#167;8. From ID to symbol. </b>If all we want is to read the ID of a symbol definitely present in the given
symbols table, that's easy:
</p>
<pre class="displayed-code all-displayed-code code-font">
<span class="constant-syntax">inter_ti</span><span class="plain-syntax"> </span><span class="function-syntax">InterSymbolsTables::id_from_symbol_inner_not_creating</span><span class="plain-syntax">(</span><span class="reserved-syntax">inter_tree</span><span class="plain-syntax"> *</span><span class="identifier-syntax">I</span><span class="plain-syntax">, </span><span class="reserved-syntax">inter_package</span><span class="plain-syntax"> *</span><span class="identifier-syntax">P</span><span class="plain-syntax">, </span><span class="reserved-syntax">inter_symbol</span><span class="plain-syntax"> *</span><span class="identifier-syntax">S</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">S</span><span class="plain-syntax"> == </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">) </span><span class="identifier-syntax">internal_error</span><span class="plain-syntax">(</span><span class="string-syntax">"no symbol"</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">inter_symbols_table</span><span class="plain-syntax"> *</span><span class="identifier-syntax">T</span><span class="plain-syntax"> = </span><a href="2-pck.html#SP3" class="function-link"><span class="function-syntax">Inter::Packages::scope</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">P</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">T</span><span class="plain-syntax"> == </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">) </span><span class="identifier-syntax">T</span><span class="plain-syntax"> = </span><a href="2-it.html#SP2" class="function-link"><span class="function-syntax">InterTree::global_scope</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">I</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">T</span><span class="plain-syntax"> != </span><span class="identifier-syntax">S</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">owning_table</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">LOG</span><span class="plain-syntax">(</span><span class="string-syntax">"Symbol is $3, owned by $4, but we wanted ID from $4\n"</span><span class="plain-syntax">, </span><span class="identifier-syntax">S</span><span class="plain-syntax">, </span><span class="identifier-syntax">S</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">owning_table</span><span class="plain-syntax">, </span><span class="identifier-syntax">T</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">internal_error</span><span class="plain-syntax">(</span><span class="string-syntax">"ID not available in this scope"</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> }</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">S</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">symbol_ID</span><span class="plain-syntax">;</span>
<span class="plain-syntax">}</span>
<span class="constant-syntax">inter_ti</span><span class="plain-syntax"> </span><span class="function-syntax">InterSymbolsTables::id_from_symbol_not_creating</span><span class="plain-syntax">(</span><span class="reserved-syntax">inter_tree</span><span class="plain-syntax"> *</span><span class="identifier-syntax">I</span><span class="plain-syntax">, </span><span class="reserved-syntax">inter_package</span><span class="plain-syntax"> *</span><span class="identifier-syntax">P</span><span class="plain-syntax">, </span><span class="reserved-syntax">inter_symbol</span><span class="plain-syntax"> *</span><span class="identifier-syntax">S</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><a href="2-st.html#SP8" class="function-link"><span class="function-syntax">InterSymbolsTables::id_from_symbol_inner_not_creating</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">I</span><span class="plain-syntax">, </span><span class="identifier-syntax">P</span><span class="plain-syntax">, </span><span class="identifier-syntax">S</span><span class="plain-syntax">);</span>
<span class="plain-syntax">}</span>
<span class="constant-syntax">inter_ti</span><span class="plain-syntax"> </span><span class="function-syntax">InterSymbolsTables::id_from_bookmark_and_symbol_not_creating</span><span class="plain-syntax">(</span><span class="reserved-syntax">inter_bookmark</span><span class="plain-syntax"> *</span><span class="identifier-syntax">IBM</span><span class="plain-syntax">, </span><span class="reserved-syntax">inter_symbol</span><span class="plain-syntax"> *</span><span class="identifier-syntax">S</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><a href="2-st.html#SP8" class="function-link"><span class="function-syntax">InterSymbolsTables::id_from_symbol_inner_not_creating</span></a><span class="plain-syntax">(</span><a href="2-bkm.html#SP1" class="function-link"><span class="function-syntax">Inter::Bookmarks::tree</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">IBM</span><span class="plain-syntax">), </span><a href="2-bkm.html#SP1" class="function-link"><span class="function-syntax">Inter::Bookmarks::package</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">IBM</span><span class="plain-syntax">), </span><span class="identifier-syntax">S</span><span class="plain-syntax">);</span>
<span class="plain-syntax">}</span>
</pre>
<p class="commentary firstcommentary"><a id="SP9" class="paragraph-anchor"></a><b>&#167;9. </b>However, things become more interesting if we want an ID for a symbol in
a context other than its home. We then create a new symbol in the current
context, equate it to the original, and return the ID of the new symbol.
</p>
<p class="commentary">Globals are not allowed to be reached this way, purely for efficiency's
sake: we don't want to proliferate equated symbols for primitives like
<span class="extract"><span class="extract-syntax">!store</span></span>, not for package types like <span class="extract"><span class="extract-syntax">_code</span></span>. (But it would work perfectly
well if we did.) It's therefore an internal error to call this routine with
a global symbol in any non-global context.
</p>
<pre class="displayed-code all-displayed-code code-font">
<span class="constant-syntax">inter_ti</span><span class="plain-syntax"> </span><span class="function-syntax">InterSymbolsTables::id_from_symbol_inner</span><button class="popup" onclick="togglePopup('usagePopup17')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup17">Usage of <span class="code-font"><span class="function-syntax">InterSymbolsTables::id_from_symbol_inner</span></span>:<br/>Transmigration - <a href="2-trn.html#SP3_1">&#167;3.1</a>, <a href="2-trn.html#SP3_1_1">&#167;3.1.1</a>, <a href="2-trn.html#SP3_2">&#167;3.2</a>, <a href="2-trn.html#SP3_2_1">&#167;3.2.1</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">inter_symbols_table</span><span class="plain-syntax"> *</span><span class="identifier-syntax">G</span><span class="plain-syntax">, </span><span class="reserved-syntax">inter_package</span><span class="plain-syntax"> *</span><span class="identifier-syntax">P</span><span class="plain-syntax">, </span><span class="reserved-syntax">inter_symbol</span><span class="plain-syntax"> *</span><span class="identifier-syntax">S</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">S</span><span class="plain-syntax"> == </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">) </span><span class="identifier-syntax">internal_error</span><span class="plain-syntax">(</span><span class="string-syntax">"no symbol"</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">inter_symbols_table</span><span class="plain-syntax"> *</span><span class="identifier-syntax">T</span><span class="plain-syntax"> = </span><a href="2-pck.html#SP3" class="function-link"><span class="function-syntax">Inter::Packages::scope</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">P</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">T</span><span class="plain-syntax"> == </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">) </span><span class="identifier-syntax">T</span><span class="plain-syntax"> = </span><span class="identifier-syntax">G</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">T</span><span class="plain-syntax"> != </span><span class="identifier-syntax">S</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">owning_table</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">LOGIF</span><span class="plain-syntax">(</span><span class="identifier-syntax">INTER_SYMBOLS</span><span class="plain-syntax">, </span><span class="string-syntax">"Seek ID of $3 from $4, which is not its owner $4\n"</span><span class="plain-syntax">, </span><span class="identifier-syntax">S</span><span class="plain-syntax">, </span><span class="identifier-syntax">T</span><span class="plain-syntax">, </span><span class="identifier-syntax">S</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">owning_table</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">S</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">owning_table</span><span class="plain-syntax"> == </span><span class="identifier-syntax">G</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">LOG</span><span class="plain-syntax">(</span><span class="string-syntax">"Seek ID of $3 from $4, which is not its owner $4\n"</span><span class="plain-syntax">, </span><span class="identifier-syntax">S</span><span class="plain-syntax">, </span><span class="identifier-syntax">T</span><span class="plain-syntax">, </span><span class="identifier-syntax">S</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">owning_table</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">internal_error</span><span class="plain-syntax">(</span><span class="string-syntax">"attempted to equate to global"</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> }</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">for</span><span class="plain-syntax"> (</span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">i</span><span class="plain-syntax">=0; </span><span class="identifier-syntax">i</span><span class="function-syntax">&lt;T-&gt;</span><span class="element-syntax">size</span><span class="plain-syntax">; </span><span class="identifier-syntax">i</span><span class="plain-syntax">++)</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> ((</span><span class="identifier-syntax">T</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">symbol_array</span><span class="plain-syntax">[</span><span class="identifier-syntax">i</span><span class="plain-syntax">]) &amp;&amp; (</span><span class="identifier-syntax">T</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">symbol_array</span><span class="plain-syntax">[</span><span class="identifier-syntax">i</span><span class="plain-syntax">]-&gt;</span><span class="element-syntax">equated_to</span><span class="plain-syntax"> == </span><span class="identifier-syntax">S</span><span class="plain-syntax">))</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> (</span><span class="constant-syntax">inter_ti</span><span class="plain-syntax">) </span><span class="identifier-syntax">T</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">symbol_array</span><span class="plain-syntax">[</span><span class="identifier-syntax">i</span><span class="plain-syntax">]-&gt;</span><span class="element-syntax">symbol_ID</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">text_stream</span><span class="plain-syntax"> *</span><span class="identifier-syntax">N</span><span class="plain-syntax"> = </span><a href="2-st.html#SP5" class="function-link"><span class="function-syntax">InterSymbolsTables::render_identifier_unique</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">T</span><span class="plain-syntax">, </span><span class="identifier-syntax">S</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">symbol_name</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">inter_symbol</span><span class="plain-syntax"> *</span><span class="identifier-syntax">X</span><span class="plain-syntax"> = </span><a href="2-st.html#SP3" class="function-link"><span class="function-syntax">InterSymbolsTables::search_inner</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">T</span><span class="plain-syntax">, </span><span class="identifier-syntax">N</span><span class="plain-syntax">, </span><span class="identifier-syntax">TRUE</span><span class="plain-syntax">, </span><span class="constant-syntax">0</span><span class="plain-syntax">, </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">X</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">equated_to</span><span class="plain-syntax"> == </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><a href="2-st.html#SP10" class="function-link"><span class="function-syntax">InterSymbolsTables::equate</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">X</span><span class="plain-syntax">, </span><span class="identifier-syntax">S</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">LOGIF</span><span class="plain-syntax">(</span><span class="identifier-syntax">INTER_SYMBOLS</span><span class="plain-syntax">, </span><span class="string-syntax">"Equating $3 to new $3\n"</span><span class="plain-syntax">, </span><span class="identifier-syntax">S</span><span class="plain-syntax">, </span><span class="identifier-syntax">X</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> }</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">X</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">equated_to</span><span class="plain-syntax"> != </span><span class="identifier-syntax">S</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">LOG</span><span class="plain-syntax">(</span><span class="string-syntax">"Want ID for $3 but there's already $3 locally which equates to $3\n"</span><span class="plain-syntax">, </span><span class="identifier-syntax">S</span><span class="plain-syntax">, </span><span class="identifier-syntax">X</span><span class="plain-syntax">, </span><span class="identifier-syntax">X</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">equated_to</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">internal_error</span><span class="plain-syntax">(</span><span class="string-syntax">"external symbol clash"</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> }</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">X</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">symbol_ID</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> }</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">S</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">symbol_ID</span><span class="plain-syntax">;</span>
<span class="plain-syntax">}</span>
<span class="constant-syntax">inter_ti</span><span class="plain-syntax"> </span><span class="function-syntax">InterSymbolsTables::id_from_symbol</span><button class="popup" onclick="togglePopup('usagePopup18')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup18">Usage of <span class="code-font"><span class="function-syntax">InterSymbolsTables::id_from_symbol</span></span>:<br/>Symbols - <a href="2-sym.html#SP3">&#167;3</a><br/>The Package Construct - <a href="4-tpc3.html#SP2">&#167;2</a><br/>The Inv Construct - <a href="5-tic.html#SP2">&#167;2</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">inter_tree</span><span class="plain-syntax"> *</span><span class="identifier-syntax">I</span><span class="plain-syntax">, </span><span class="reserved-syntax">inter_package</span><span class="plain-syntax"> *</span><span class="identifier-syntax">P</span><span class="plain-syntax">, </span><span class="reserved-syntax">inter_symbol</span><span class="plain-syntax"> *</span><span class="identifier-syntax">S</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><a href="2-st.html#SP9" class="function-link"><span class="function-syntax">InterSymbolsTables::id_from_symbol_inner</span></a><span class="plain-syntax">(</span><a href="2-it.html#SP2" class="function-link"><span class="function-syntax">InterTree::global_scope</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">I</span><span class="plain-syntax">), </span><span class="identifier-syntax">P</span><span class="plain-syntax">, </span><span class="identifier-syntax">S</span><span class="plain-syntax">);</span>
<span class="plain-syntax">}</span>
<span class="constant-syntax">inter_ti</span><span class="plain-syntax"> </span><span class="function-syntax">InterSymbolsTables::id_from_symbol_F</span><button class="popup" onclick="togglePopup('usagePopup19')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup19">Usage of <span class="code-font"><span class="function-syntax">InterSymbolsTables::id_from_symbol_F</span></span>:<br/>The Inv Construct - <a href="5-tic.html#SP2">&#167;2</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">inter_tree_node</span><span class="plain-syntax"> *</span><span class="identifier-syntax">F</span><span class="plain-syntax">, </span><span class="reserved-syntax">inter_package</span><span class="plain-syntax"> *</span><span class="identifier-syntax">P</span><span class="plain-syntax">, </span><span class="reserved-syntax">inter_symbol</span><span class="plain-syntax"> *</span><span class="identifier-syntax">S</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><a href="2-st.html#SP9" class="function-link"><span class="function-syntax">InterSymbolsTables::id_from_symbol_inner</span></a><span class="plain-syntax">(</span><a href="2-in.html#SP3" class="function-link"><span class="function-syntax">Inode::globals</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">F</span><span class="plain-syntax">), </span><span class="identifier-syntax">P</span><span class="plain-syntax">, </span><span class="identifier-syntax">S</span><span class="plain-syntax">);</span>
<span class="plain-syntax">}</span>
<span class="constant-syntax">inter_ti</span><span class="plain-syntax"> </span><span class="function-syntax">InterSymbolsTables::id_from_IRS_and_symbol</span><button class="popup" onclick="togglePopup('usagePopup20')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup20">Usage of <span class="code-font"><span class="function-syntax">InterSymbolsTables::id_from_IRS_and_symbol</span></span>:<br/>The Pragma Construct - <a href="4-tpc.html#SP2">&#167;2</a><br/>The Append Construct - <a href="4-tac.html#SP2">&#167;2</a><br/>The PackageType Construct - <a href="4-tpc2.html#SP2">&#167;2</a><br/>The Kind Construct - <a href="4-tkc.html#SP2">&#167;2</a><br/>The DefaultValue Construct - <a href="4-tdc.html#SP2">&#167;2</a><br/>The Variable Construct - <a href="4-tvc2.html#SP2">&#167;2</a><br/>The Constant Construct - <a href="4-tcc2.html#SP2">&#167;2</a><br/>The Instance Construct - <a href="4-tic.html#SP2">&#167;2</a><br/>The Property Construct - <a href="4-tpc4.html#SP2">&#167;2</a><br/>The PropertyValue Construct - <a href="4-tpc5.html#SP2">&#167;2</a><br/>The Permission Construct - <a href="4-tpc6.html#SP2">&#167;2</a><br/>The Primitive Construct - <a href="4-tpc7.html#SP2">&#167;2</a><br/>The Label Construct - <a href="5-tlc.html#SP2">&#167;2</a><br/>The Local Construct - <a href="5-tlc2.html#SP2">&#167;2</a><br/>The Inv Construct - <a href="5-tic.html#SP2">&#167;2</a><br/>The Ref Construct - <a href="5-trc.html#SP2">&#167;2</a><br/>The Val Construct - <a href="5-tvc.html#SP2">&#167;2</a><br/>The Lab Construct - <a href="5-tlc3.html#SP2">&#167;2</a><br/>The Cast Construct - <a href="5-tcc2.html#SP2">&#167;2</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">inter_bookmark</span><span class="plain-syntax"> *</span><span class="identifier-syntax">IBM</span><span class="plain-syntax">, </span><span class="reserved-syntax">inter_symbol</span><span class="plain-syntax"> *</span><span class="identifier-syntax">S</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><a href="2-st.html#SP9" class="function-link"><span class="function-syntax">InterSymbolsTables::id_from_symbol_inner</span></a><span class="plain-syntax">(</span><a href="2-it.html#SP2" class="function-link"><span class="function-syntax">InterTree::global_scope</span></a><span class="plain-syntax">(</span><a href="2-bkm.html#SP1" class="function-link"><span class="function-syntax">Inter::Bookmarks::tree</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">IBM</span><span class="plain-syntax">)), </span><a href="2-bkm.html#SP1" class="function-link"><span class="function-syntax">Inter::Bookmarks::package</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">IBM</span><span class="plain-syntax">), </span><span class="identifier-syntax">S</span><span class="plain-syntax">);</span>
<span class="plain-syntax">}</span>
</pre>
<p class="commentary firstcommentary"><a id="SP10" class="paragraph-anchor"></a><b>&#167;10. Equations. </b></p>
<pre class="displayed-code all-displayed-code code-font">
<span class="reserved-syntax">void</span><span class="plain-syntax"> </span><span class="function-syntax">InterSymbolsTables::equate</span><button class="popup" onclick="togglePopup('usagePopup21')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup21">Usage of <span class="code-font"><span class="function-syntax">InterSymbolsTables::equate</span></span>:<br/><a href="2-st.html#SP9">&#167;9</a><br/>Connectors - <a href="2-cnn.html#SP1">&#167;1</a><br/>Inter in Binary Files - <a href="3-iibf.html#SP1_5">&#167;1.5</a><br/>The Symbol Construct - <a href="4-tsc.html#SP1">&#167;1</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">inter_symbol</span><span class="plain-syntax"> *</span><span class="identifier-syntax">S_from</span><span class="plain-syntax">, </span><span class="reserved-syntax">inter_symbol</span><span class="plain-syntax"> *</span><span class="identifier-syntax">S_to</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> ((</span><span class="identifier-syntax">S_from</span><span class="plain-syntax"> == </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">) || (</span><span class="identifier-syntax">S_to</span><span class="plain-syntax"> == </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">))</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">internal_error</span><span class="plain-syntax">(</span><span class="string-syntax">"bad symbol equation"</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> ((</span><span class="identifier-syntax">S_from</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">metadata_key</span><span class="plain-syntax">) || (</span><span class="identifier-syntax">S_to</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">metadata_key</span><span class="plain-syntax">))</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">internal_error</span><span class="plain-syntax">(</span><span class="string-syntax">"metadata keys cannot equate"</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">S_from</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">equated_to</span><span class="plain-syntax"> = </span><span class="identifier-syntax">S_to</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> ((</span><a href="2-sym.html#SP2" class="function-link"><span class="function-syntax">Inter::Symbols::get_scope</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">S_from</span><span class="plain-syntax">) != </span><span class="constant-syntax">SOCKET_ISYMS</span><span class="plain-syntax">) &amp;&amp;</span>
<span class="plain-syntax"> (</span><a href="2-sym.html#SP2" class="function-link"><span class="function-syntax">Inter::Symbols::get_scope</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">S_from</span><span class="plain-syntax">) != </span><span class="constant-syntax">PLUG_ISYMS</span><span class="plain-syntax">))</span>
<span class="plain-syntax"> </span><a href="2-sym.html#SP2" class="function-link"><span class="function-syntax">Inter::Symbols::set_scope</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">S_from</span><span class="plain-syntax">, </span><span class="constant-syntax">EXTERNAL_ISYMS</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">LOGIF</span><span class="plain-syntax">(</span><span class="identifier-syntax">INTER_SYMBOLS</span><span class="plain-syntax">, </span><span class="string-syntax">"Equate $3 to $3\n"</span><span class="plain-syntax">, </span><span class="identifier-syntax">S_from</span><span class="plain-syntax">, </span><span class="identifier-syntax">S_to</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">c</span><span class="plain-syntax"> = </span><span class="constant-syntax">0</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">for</span><span class="plain-syntax"> (</span><span class="reserved-syntax">inter_symbol</span><span class="plain-syntax"> *</span><span class="identifier-syntax">S</span><span class="plain-syntax"> = </span><span class="identifier-syntax">S_from</span><span class="plain-syntax">; </span><span class="identifier-syntax">S</span><span class="plain-syntax">; </span><span class="identifier-syntax">S</span><span class="plain-syntax"> = </span><span class="identifier-syntax">S</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">equated_to</span><span class="plain-syntax">, </span><span class="identifier-syntax">c</span><span class="plain-syntax">++)</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">c</span><span class="plain-syntax"> == </span><span class="constant-syntax">20</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">c</span><span class="plain-syntax"> = </span><span class="constant-syntax">0</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">for</span><span class="plain-syntax"> (</span><span class="reserved-syntax">inter_symbol</span><span class="plain-syntax"> *</span><span class="identifier-syntax">S</span><span class="plain-syntax"> = </span><span class="identifier-syntax">S_from</span><span class="plain-syntax">; </span><span class="identifier-syntax">c</span><span class="plain-syntax"> &lt; </span><span class="constant-syntax">20</span><span class="plain-syntax">; </span><span class="identifier-syntax">S</span><span class="plain-syntax"> = </span><span class="identifier-syntax">S</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">equated_to</span><span class="plain-syntax">, </span><span class="identifier-syntax">c</span><span class="plain-syntax">++)</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">LOG</span><span class="plain-syntax">(</span><span class="string-syntax">"%d. %S\n"</span><span class="plain-syntax">, </span><span class="identifier-syntax">c</span><span class="plain-syntax">, </span><span class="identifier-syntax">S</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">symbol_name</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">internal_error</span><span class="plain-syntax">(</span><span class="string-syntax">"probably circular symbol equation"</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> }</span>
<span class="plain-syntax">}</span>
<span class="reserved-syntax">void</span><span class="plain-syntax"> </span><span class="function-syntax">InterSymbolsTables::equate_textual</span><button class="popup" onclick="togglePopup('usagePopup22')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup22">Usage of <span class="code-font"><span class="function-syntax">InterSymbolsTables::equate_textual</span></span>:<br/>The Symbol Construct - <a href="4-tsc.html#SP1">&#167;1</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">inter_symbol</span><span class="plain-syntax"> *</span><span class="identifier-syntax">S_from</span><span class="plain-syntax">, </span><span class="identifier-syntax">text_stream</span><span class="plain-syntax"> *</span><span class="identifier-syntax">name</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> ((</span><span class="identifier-syntax">S_from</span><span class="plain-syntax"> == </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">) || (</span><span class="identifier-syntax">name</span><span class="plain-syntax"> == </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">)) </span><span class="identifier-syntax">internal_error</span><span class="plain-syntax">(</span><span class="string-syntax">"bad symbol equation"</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">S_from</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">equated_to</span><span class="plain-syntax"> = </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">S_from</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">equated_name</span><span class="plain-syntax"> = </span><span class="identifier-syntax">Str::duplicate</span><span class="plain-syntax">(</span><span class="identifier-syntax">name</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><a href="2-sym.html#SP2" class="function-link"><span class="function-syntax">Inter::Symbols::set_scope</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">S_from</span><span class="plain-syntax">, </span><span class="constant-syntax">EXTERNAL_ISYMS</span><span class="plain-syntax">);</span>
<span class="plain-syntax">}</span>
<span class="reserved-syntax">void</span><span class="plain-syntax"> </span><span class="function-syntax">InterSymbolsTables::make_plug</span><button class="popup" onclick="togglePopup('usagePopup23')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup23">Usage of <span class="code-font"><span class="function-syntax">InterSymbolsTables::make_plug</span></span>:<br/>Connectors - <a href="2-cnn.html#SP1">&#167;1</a><br/>The Symbol Construct - <a href="4-tsc.html#SP1">&#167;1</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">inter_symbol</span><span class="plain-syntax"> *</span><span class="identifier-syntax">S_from</span><span class="plain-syntax">, </span><span class="identifier-syntax">text_stream</span><span class="plain-syntax"> *</span><span class="identifier-syntax">wanted</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> ((</span><span class="identifier-syntax">S_from</span><span class="plain-syntax"> == </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">) || (</span><span class="identifier-syntax">wanted</span><span class="plain-syntax"> == </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">)) </span><span class="identifier-syntax">internal_error</span><span class="plain-syntax">(</span><span class="string-syntax">"bad link equation"</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">S_from</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">equated_to</span><span class="plain-syntax"> = </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">S_from</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">equated_name</span><span class="plain-syntax"> = </span><span class="identifier-syntax">Str::duplicate</span><span class="plain-syntax">(</span><span class="identifier-syntax">wanted</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><a href="2-sym.html#SP2" class="function-link"><span class="function-syntax">Inter::Symbols::set_scope</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">S_from</span><span class="plain-syntax">, </span><span class="constant-syntax">PLUG_ISYMS</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><a href="2-sym.html#SP2" class="function-link"><span class="function-syntax">Inter::Symbols::set_type</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">S_from</span><span class="plain-syntax">, </span><span class="constant-syntax">MISC_ISYMT</span><span class="plain-syntax">);</span>
<span class="plain-syntax">}</span>
<span class="reserved-syntax">void</span><span class="plain-syntax"> </span><span class="function-syntax">InterSymbolsTables::make_socket</span><button class="popup" onclick="togglePopup('usagePopup24')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup24">Usage of <span class="code-font"><span class="function-syntax">InterSymbolsTables::make_socket</span></span>:<br/>Connectors - <a href="2-cnn.html#SP1">&#167;1</a><br/>The Symbol Construct - <a href="4-tsc.html#SP1">&#167;1</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">inter_symbol</span><span class="plain-syntax"> *</span><span class="identifier-syntax">S_from</span><span class="plain-syntax">, </span><span class="reserved-syntax">inter_symbol</span><span class="plain-syntax"> *</span><span class="identifier-syntax">wired_from</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">S_from</span><span class="plain-syntax"> == </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">) </span><span class="identifier-syntax">internal_error</span><span class="plain-syntax">(</span><span class="string-syntax">"bad link equation"</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">S_from</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">equated_to</span><span class="plain-syntax"> = </span><span class="identifier-syntax">wired_from</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><a href="2-sym.html#SP2" class="function-link"><span class="function-syntax">Inter::Symbols::set_scope</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">S_from</span><span class="plain-syntax">, </span><span class="constant-syntax">SOCKET_ISYMS</span><span class="plain-syntax">);</span>
<span class="plain-syntax">}</span>
<span class="reserved-syntax">void</span><span class="plain-syntax"> </span><span class="function-syntax">InterSymbolsTables::resolve_forward_references</span><button class="popup" onclick="togglePopup('usagePopup25')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup25">Usage of <span class="code-font"><span class="function-syntax">InterSymbolsTables::resolve_forward_references</span></span>:<br/>Inter in Text Files - <a href="3-iitf.html#SP1">&#167;1</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">inter_tree</span><span class="plain-syntax"> *</span><span class="identifier-syntax">I</span><span class="plain-syntax">, </span><span class="reserved-syntax">inter_error_location</span><span class="plain-syntax"> *</span><span class="identifier-syntax">eloc</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><a href="2-it.html#SP5" class="function-link"><span class="function-syntax">InterTree::traverse</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">I</span><span class="plain-syntax">, </span><a href="2-st.html#SP10" class="function-link"><span class="function-syntax">InterSymbolsTables::rfr_visitor</span></a><span class="plain-syntax">, </span><span class="identifier-syntax">eloc</span><span class="plain-syntax">, </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">, </span><span class="constant-syntax">PACKAGE_IST</span><span class="plain-syntax">);</span>
<span class="plain-syntax">}</span>
<span class="reserved-syntax">void</span><span class="plain-syntax"> </span><span class="function-syntax">InterSymbolsTables::rfr_visitor</span><span class="plain-syntax">(</span><span class="reserved-syntax">inter_tree</span><span class="plain-syntax"> *</span><span class="identifier-syntax">I</span><span class="plain-syntax">, </span><span class="reserved-syntax">inter_tree_node</span><span class="plain-syntax"> *</span><span class="identifier-syntax">P</span><span class="plain-syntax">, </span><span class="reserved-syntax">void</span><span class="plain-syntax"> *</span><span class="identifier-syntax">state</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">inter_error_location</span><span class="plain-syntax"> *</span><span class="identifier-syntax">eloc</span><span class="plain-syntax"> = (</span><span class="reserved-syntax">inter_error_location</span><span class="plain-syntax"> *) </span><span class="identifier-syntax">state</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">inter_package</span><span class="plain-syntax"> *</span><span class="identifier-syntax">pack</span><span class="plain-syntax"> = </span><a href="4-tpc3.html#SP2" class="function-link"><span class="function-syntax">Inter::Package::defined_by_frame</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">P</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">pack</span><span class="plain-syntax"> == </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">) </span><span class="identifier-syntax">internal_error</span><span class="plain-syntax">(</span><span class="string-syntax">"no package defined here"</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">inter_symbols_table</span><span class="plain-syntax"> *</span><span class="identifier-syntax">T</span><span class="plain-syntax"> = </span><a href="2-pck.html#SP3" class="function-link"><span class="function-syntax">Inter::Packages::scope</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">pack</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">T</span><span class="plain-syntax"> == </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">) </span><span class="identifier-syntax">internal_error</span><span class="plain-syntax">(</span><span class="string-syntax">"package with no symbols"</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">for</span><span class="plain-syntax"> (</span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">i</span><span class="plain-syntax">=0; </span><span class="identifier-syntax">i</span><span class="function-syntax">&lt;T-&gt;</span><span class="element-syntax">size</span><span class="plain-syntax">; </span><span class="identifier-syntax">i</span><span class="plain-syntax">++) {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">inter_symbol</span><span class="plain-syntax"> *</span><span class="identifier-syntax">symb</span><span class="plain-syntax"> = </span><span class="identifier-syntax">T</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">symbol_array</span><span class="plain-syntax">[</span><span class="identifier-syntax">i</span><span class="plain-syntax">];</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> ((</span><span class="identifier-syntax">symb</span><span class="plain-syntax">) &amp;&amp; (</span><span class="identifier-syntax">symb</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">equated_name</span><span class="plain-syntax">)) {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><a href="2-sym.html#SP2" class="function-link"><span class="function-syntax">Inter::Symbols::get_scope</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">symb</span><span class="plain-syntax">) == </span><span class="constant-syntax">PLUG_ISYMS</span><span class="plain-syntax">) </span><span class="reserved-syntax">continue</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">inter_symbol</span><span class="plain-syntax"> *</span><span class="identifier-syntax">S_to</span><span class="plain-syntax"> = </span><a href="2-st.html#SP11" class="function-link"><span class="function-syntax">InterSymbolsTables::url_name_to_symbol</span></a><span class="plain-syntax">(</span><a href="2-pck.html#SP3" class="function-link"><span class="function-syntax">Inter::Packages::tree</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">pack</span><span class="plain-syntax">), </span><span class="identifier-syntax">T</span><span class="plain-syntax">, </span><span class="identifier-syntax">symb</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">equated_name</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">S_to</span><span class="plain-syntax"> == </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">) </span><a href="3-ie.html#SP1" class="function-link"><span class="function-syntax">Inter::Errors::issue</span></a><span class="plain-syntax">(</span><a href="3-ie.html#SP1" class="function-link"><span class="function-syntax">Inter::Errors::quoted</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">I</span><span class="string-syntax">"unable to locate symbol"</span><span class="plain-syntax">, </span><span class="identifier-syntax">symb</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">equated_name</span><span class="plain-syntax">, </span><span class="identifier-syntax">eloc</span><span class="plain-syntax">));</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">else</span><span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><a href="2-sym.html#SP2" class="function-link"><span class="function-syntax">Inter::Symbols::get_scope</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">symb</span><span class="plain-syntax">) == </span><span class="constant-syntax">SOCKET_ISYMS</span><span class="plain-syntax">)</span>
<span class="plain-syntax"> </span><a href="2-st.html#SP10" class="function-link"><span class="function-syntax">InterSymbolsTables::make_socket</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">symb</span><span class="plain-syntax">, </span><span class="identifier-syntax">S_to</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">else</span><span class="plain-syntax"> </span><a href="2-st.html#SP10" class="function-link"><span class="function-syntax">InterSymbolsTables::equate</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">symb</span><span class="plain-syntax">, </span><span class="identifier-syntax">S_to</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">symb</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">equated_name</span><span class="plain-syntax"> = </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> }</span>
<span class="plain-syntax"> }</span>
<span class="plain-syntax">}</span>
</pre>
<p class="commentary firstcommentary"><a id="SP11" class="paragraph-anchor"></a><b>&#167;11. URL-style symbol names. </b></p>
<pre class="definitions code-font"><span class="definition-keyword">define</span> <span class="constant-syntax">MAX_URL_SYMBOL_NAME_DEPTH</span><span class="plain-syntax"> </span><span class="constant-syntax">512</span>
</pre>
<pre class="displayed-code all-displayed-code code-font">
<span class="reserved-syntax">inter_symbol</span><span class="plain-syntax"> *</span><span class="function-syntax">InterSymbolsTables::url_name_to_symbol</span><button class="popup" onclick="togglePopup('usagePopup26')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup26">Usage of <span class="code-font"><span class="function-syntax">InterSymbolsTables::url_name_to_symbol</span></span>:<br/><a href="2-st.html#SP10">&#167;10</a><br/>Transmigration - <a href="2-trn.html#SP3_3">&#167;3.3</a><br/>The Symbol Construct - <a href="4-tsc.html#SP1">&#167;1</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">inter_tree</span><span class="plain-syntax"> *</span><span class="identifier-syntax">I</span><span class="plain-syntax">, </span><span class="reserved-syntax">inter_symbols_table</span><span class="plain-syntax"> *</span><span class="identifier-syntax">T</span><span class="plain-syntax">, </span><span class="identifier-syntax">text_stream</span><span class="plain-syntax"> *</span><span class="identifier-syntax">S</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">inter_symbols_table</span><span class="plain-syntax"> *</span><span class="identifier-syntax">at</span><span class="plain-syntax"> = </span><a href="2-it.html#SP2" class="function-link"><span class="function-syntax">InterTree::global_scope</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">I</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">Str::get_first_char</span><span class="plain-syntax">(</span><span class="identifier-syntax">S</span><span class="plain-syntax">) == </span><span class="character-syntax">'/'</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">inter_package</span><span class="plain-syntax"> *</span><span class="identifier-syntax">at_P</span><span class="plain-syntax"> = </span><span class="identifier-syntax">I</span><span class="plain-syntax">-&gt;</span><span class="identifier-syntax">root_package</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">TEMPORARY_TEXT</span><span class="plain-syntax">(</span><span class="identifier-syntax">C</span><span class="plain-syntax">)</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">LOOP_THROUGH_TEXT</span><span class="plain-syntax">(</span><span class="identifier-syntax">P</span><span class="plain-syntax">, </span><span class="identifier-syntax">S</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">wchar_t</span><span class="plain-syntax"> </span><span class="identifier-syntax">c</span><span class="plain-syntax"> = </span><span class="identifier-syntax">Str::get</span><span class="plain-syntax">(</span><span class="identifier-syntax">P</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">c</span><span class="plain-syntax"> == </span><span class="character-syntax">'/'</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">Str::len</span><span class="plain-syntax">(</span><span class="identifier-syntax">C</span><span class="plain-syntax">) &gt; </span><span class="constant-syntax">0</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">at_P</span><span class="plain-syntax"> = </span><a href="2-pck.html#SP3" class="function-link"><span class="function-syntax">Inter::Packages::by_name</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">at_P</span><span class="plain-syntax">, </span><span class="identifier-syntax">C</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">at_P</span><span class="plain-syntax"> == </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">) </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> }</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">Str::clear</span><span class="plain-syntax">(</span><span class="identifier-syntax">C</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> } </span><span class="reserved-syntax">else</span><span class="plain-syntax"> {</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">PUT_TO</span><span class="plain-syntax">(</span><span class="identifier-syntax">C</span><span class="plain-syntax">, </span><span class="identifier-syntax">c</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> }</span>
<span class="plain-syntax"> }</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><a href="2-st.html#SP4" class="function-link"><span class="function-syntax">InterSymbolsTables::symbol_from_name</span></a><span class="plain-syntax">(</span><a href="2-pck.html#SP3" class="function-link"><span class="function-syntax">Inter::Packages::scope</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">at_P</span><span class="plain-syntax">), </span><span class="identifier-syntax">C</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> }</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">inter_symbol</span><span class="plain-syntax"> *</span><span class="identifier-syntax">try</span><span class="plain-syntax"> = </span><a href="2-st.html#SP4" class="function-link"><span class="function-syntax">InterSymbolsTables::symbol_from_name</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">at</span><span class="plain-syntax">, </span><span class="identifier-syntax">S</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">try</span><span class="plain-syntax">) </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">try</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">T</span><span class="plain-syntax">) </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><a href="2-st.html#SP4" class="function-link"><span class="function-syntax">InterSymbolsTables::symbol_from_name</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">T</span><span class="plain-syntax">, </span><span class="identifier-syntax">S</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">;</span>
<span class="plain-syntax">}</span>
<span class="reserved-syntax">void</span><span class="plain-syntax"> </span><span class="function-syntax">InterSymbolsTables::symbol_to_url_name</span><button class="popup" onclick="togglePopup('usagePopup27')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup27">Usage of <span class="code-font"><span class="function-syntax">InterSymbolsTables::symbol_to_url_name</span></span>:<br/>Symbols - <a href="2-sym.html#SP2">&#167;2</a>, <a href="2-sym.html#SP4">&#167;4</a><br/>Transmigration - <a href="2-trn.html#SP3_3">&#167;3.3</a>, <a href="2-trn.html#SP4_1">&#167;4.1</a></span></button><span class="plain-syntax">(</span><span class="identifier-syntax">OUTPUT_STREAM</span><span class="plain-syntax">, </span><span class="reserved-syntax">inter_symbol</span><span class="plain-syntax"> *</span><span class="identifier-syntax">S</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">inter_package</span><span class="plain-syntax"> *</span><span class="identifier-syntax">chain</span><span class="plain-syntax">[</span><span class="constant-syntax">MAX_URL_SYMBOL_NAME_DEPTH</span><span class="plain-syntax">];</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">chain_length</span><span class="plain-syntax"> = </span><span class="constant-syntax">0</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">inter_package</span><span class="plain-syntax"> *</span><span class="identifier-syntax">P</span><span class="plain-syntax"> = </span><span class="identifier-syntax">S</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">owning_table</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">owning_package</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">P</span><span class="plain-syntax"> == </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">) { </span><span class="identifier-syntax">WRITE</span><span class="plain-syntax">(</span><span class="string-syntax">"%S"</span><span class="plain-syntax">, </span><span class="identifier-syntax">S</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">symbol_name</span><span class="plain-syntax">); </span><span class="reserved-syntax">return</span><span class="plain-syntax">; }</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">while</span><span class="plain-syntax"> (</span><span class="identifier-syntax">P</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">chain_length</span><span class="plain-syntax"> &gt;= </span><span class="constant-syntax">MAX_URL_SYMBOL_NAME_DEPTH</span><span class="plain-syntax">) </span><span class="identifier-syntax">internal_error</span><span class="plain-syntax">(</span><span class="string-syntax">"package nesting too deep"</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">chain</span><span class="plain-syntax">[</span><span class="identifier-syntax">chain_length</span><span class="plain-syntax">++] = </span><span class="identifier-syntax">P</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">P</span><span class="plain-syntax"> = </span><a href="2-pck.html#SP3" class="function-link"><span class="function-syntax">Inter::Packages::parent</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">P</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> }</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">for</span><span class="plain-syntax"> (</span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">i</span><span class="plain-syntax">=</span><span class="identifier-syntax">chain_length</span><span class="plain-syntax">-1; </span><span class="identifier-syntax">i</span><span class="plain-syntax">&gt;=0; </span><span class="identifier-syntax">i</span><span class="plain-syntax">--) </span><span class="identifier-syntax">WRITE</span><span class="plain-syntax">(</span><span class="string-syntax">"/%S"</span><span class="plain-syntax">, </span><a href="2-pck.html#SP3" class="function-link"><span class="function-syntax">Inter::Packages::name</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">chain</span><span class="plain-syntax">[</span><span class="identifier-syntax">i</span><span class="plain-syntax">]));</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">WRITE</span><span class="plain-syntax">(</span><span class="string-syntax">"/%S"</span><span class="plain-syntax">, </span><span class="identifier-syntax">S</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">symbol_name</span><span class="plain-syntax">);</span>
<span class="plain-syntax">}</span>
</pre>
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