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<ul class="crumbs"><li><a href="../index.html">Home</a></li><li><a href="../compiler.html">Inform7</a></li><li><a href="index.html">runtime</a></li><li><a href="index.html#7">Chapter 7: Command Grammar</a></li><li><b>Command Grammars</b></li></ul></div>
<p class="purpose">Runtime support for CGs.</p>
<ul class="toc"><li><a href="7-cg.html#SP1">&#167;1. Generic constants</a></li><li><a href="7-cg.html#SP2">&#167;2. Compilation data</a></li><li><a href="7-cg.html#SP4">&#167;4. Phases III and IV: Sort and Compile Grammar</a></li></ul><hr class="tocbar">
<p class="commentary firstcommentary"><a id="SP1" class="paragraph-anchor"></a><b>&#167;1. Generic constants. </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">RTCommandGrammars::compile_generic_constants</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">RTCommandGrammars::compile_generic_constants</span></span>:<br/>Generic Module - <a href="3-gm.html#SP1">&#167;1</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">void</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><a href="7-cg.html#SP1" class="function-link"><span class="function-syntax">RTCommandGrammars::grammar_constant</span></a><span class="plain-syntax">(</span><span class="constant-syntax">VERB_DIRECTIVE_REVERSE_HL</span><span class="plain-syntax">, </span><span class="constant-syntax">1</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><a href="7-cg.html#SP1" class="function-link"><span class="function-syntax">RTCommandGrammars::grammar_constant</span></a><span class="plain-syntax">(</span><span class="constant-syntax">VERB_DIRECTIVE_SLASH_HL</span><span class="plain-syntax">, </span><span class="constant-syntax">1</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><a href="7-cg.html#SP1" class="function-link"><span class="function-syntax">RTCommandGrammars::grammar_constant</span></a><span class="plain-syntax">(</span><span class="constant-syntax">VERB_DIRECTIVE_DIVIDER_HL</span><span class="plain-syntax">, </span><span class="constant-syntax">1</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><a href="7-cg.html#SP1" class="function-link"><span class="function-syntax">RTCommandGrammars::grammar_constant</span></a><span class="plain-syntax">(</span><span class="constant-syntax">VERB_DIRECTIVE_RESULT_HL</span><span class="plain-syntax">, </span><span class="constant-syntax">2</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><a href="7-cg.html#SP1" class="function-link"><span class="function-syntax">RTCommandGrammars::grammar_constant</span></a><span class="plain-syntax">(</span><span class="constant-syntax">VERB_DIRECTIVE_SPECIAL_HL</span><span class="plain-syntax">, </span><span class="constant-syntax">3</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><a href="7-cg.html#SP1" class="function-link"><span class="function-syntax">RTCommandGrammars::grammar_constant</span></a><span class="plain-syntax">(</span><span class="constant-syntax">VERB_DIRECTIVE_NUMBER_HL</span><span class="plain-syntax">, </span><span class="constant-syntax">4</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><a href="7-cg.html#SP1" class="function-link"><span class="function-syntax">RTCommandGrammars::grammar_constant</span></a><span class="plain-syntax">(</span><span class="constant-syntax">VERB_DIRECTIVE_NOUN_HL</span><span class="plain-syntax">, </span><span class="constant-syntax">5</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><a href="7-cg.html#SP1" class="function-link"><span class="function-syntax">RTCommandGrammars::grammar_constant</span></a><span class="plain-syntax">(</span><span class="constant-syntax">VERB_DIRECTIVE_MULTI_HL</span><span class="plain-syntax">, </span><span class="constant-syntax">6</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><a href="7-cg.html#SP1" class="function-link"><span class="function-syntax">RTCommandGrammars::grammar_constant</span></a><span class="plain-syntax">(</span><span class="constant-syntax">VERB_DIRECTIVE_MULTIINSIDE_HL</span><span class="plain-syntax">, </span><span class="constant-syntax">7</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><a href="7-cg.html#SP1" class="function-link"><span class="function-syntax">RTCommandGrammars::grammar_constant</span></a><span class="plain-syntax">(</span><span class="constant-syntax">VERB_DIRECTIVE_MULTIHELD_HL</span><span class="plain-syntax">, </span><span class="constant-syntax">8</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><a href="7-cg.html#SP1" class="function-link"><span class="function-syntax">RTCommandGrammars::grammar_constant</span></a><span class="plain-syntax">(</span><span class="constant-syntax">VERB_DIRECTIVE_HELD_HL</span><span class="plain-syntax">, </span><span class="constant-syntax">9</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><a href="7-cg.html#SP1" class="function-link"><span class="function-syntax">RTCommandGrammars::grammar_constant</span></a><span class="plain-syntax">(</span><span class="constant-syntax">VERB_DIRECTIVE_CREATURE_HL</span><span class="plain-syntax">, </span><span class="constant-syntax">10</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><a href="7-cg.html#SP1" class="function-link"><span class="function-syntax">RTCommandGrammars::grammar_constant</span></a><span class="plain-syntax">(</span><span class="constant-syntax">VERB_DIRECTIVE_TOPIC_HL</span><span class="plain-syntax">, </span><span class="constant-syntax">11</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><a href="7-cg.html#SP1" class="function-link"><span class="function-syntax">RTCommandGrammars::grammar_constant</span></a><span class="plain-syntax">(</span><span class="constant-syntax">VERB_DIRECTIVE_MULTIEXCEPT_HL</span><span class="plain-syntax">, </span><span class="constant-syntax">12</span><span class="plain-syntax">);</span>
<span class="plain-syntax">}</span>
<span class="identifier-syntax">inter_name</span><span class="plain-syntax"> *</span><span class="function-syntax">RTCommandGrammars::iname_for_I6_parser_token</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">RTCommandGrammars::iname_for_I6_parser_token</span></span>:<br/>Command Grammar Lines - <a href="7-cgl.html#SP10">&#167;10</a></span></button><span class="plain-syntax">(</span><span class="identifier-syntax">cg_token</span><span class="plain-syntax"> *</span><span class="identifier-syntax">cgt</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">switch</span><span class="plain-syntax"> (</span><span class="identifier-syntax">cgt</span><span class="plain-syntax">-&gt;</span><span class="identifier-syntax">grammar_token_code</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">case</span><span class="plain-syntax"> </span><span class="identifier-syntax">NOUN_TOKEN_GTC:</span><span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><a href="2-hrr.html#SP11" class="function-link"><span class="function-syntax">Hierarchy::find</span></a><span class="plain-syntax">(</span><span class="constant-syntax">VERB_DIRECTIVE_NOUN_HL</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">case</span><span class="plain-syntax"> </span><span class="identifier-syntax">MULTI_TOKEN_GTC:</span><span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><a href="2-hrr.html#SP11" class="function-link"><span class="function-syntax">Hierarchy::find</span></a><span class="plain-syntax">(</span><span class="constant-syntax">VERB_DIRECTIVE_MULTI_HL</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">case</span><span class="plain-syntax"> </span><span class="identifier-syntax">MULTIINSIDE_TOKEN_GTC:</span><span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><a href="2-hrr.html#SP11" class="function-link"><span class="function-syntax">Hierarchy::find</span></a><span class="plain-syntax">(</span><span class="constant-syntax">VERB_DIRECTIVE_MULTIINSIDE_HL</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">case</span><span class="plain-syntax"> </span><span class="identifier-syntax">MULTIHELD_TOKEN_GTC:</span><span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><a href="2-hrr.html#SP11" class="function-link"><span class="function-syntax">Hierarchy::find</span></a><span class="plain-syntax">(</span><span class="constant-syntax">VERB_DIRECTIVE_MULTIHELD_HL</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">case</span><span class="plain-syntax"> </span><span class="identifier-syntax">HELD_TOKEN_GTC:</span><span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><a href="2-hrr.html#SP11" class="function-link"><span class="function-syntax">Hierarchy::find</span></a><span class="plain-syntax">(</span><span class="constant-syntax">VERB_DIRECTIVE_HELD_HL</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">case</span><span class="plain-syntax"> </span><span class="identifier-syntax">CREATURE_TOKEN_GTC:</span><span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><a href="2-hrr.html#SP11" class="function-link"><span class="function-syntax">Hierarchy::find</span></a><span class="plain-syntax">(</span><span class="constant-syntax">VERB_DIRECTIVE_CREATURE_HL</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">case</span><span class="plain-syntax"> </span><span class="identifier-syntax">TOPIC_TOKEN_GTC:</span><span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><a href="2-hrr.html#SP11" class="function-link"><span class="function-syntax">Hierarchy::find</span></a><span class="plain-syntax">(</span><span class="constant-syntax">VERB_DIRECTIVE_TOPIC_HL</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">case</span><span class="plain-syntax"> </span><span class="identifier-syntax">MULTIEXCEPT_TOKEN_GTC:</span><span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><a href="2-hrr.html#SP11" class="function-link"><span class="function-syntax">Hierarchy::find</span></a><span class="plain-syntax">(</span><span class="constant-syntax">VERB_DIRECTIVE_MULTIEXCEPT_HL</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">default:</span><span class="plain-syntax"> </span><span class="identifier-syntax">internal_error</span><span class="plain-syntax">(</span><span class="string-syntax">"tried to find inter name for invalid GTC"</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">NULL</span><span class="plain-syntax">; </span><span class="comment-syntax"> to prevent a compiler error: never reached</span>
<span class="plain-syntax">}</span>
<span class="identifier-syntax">inter_name</span><span class="plain-syntax"> *</span><span class="function-syntax">RTCommandGrammars::grammar_constant</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="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">V</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">inter_name</span><span class="plain-syntax"> *</span><span class="identifier-syntax">iname</span><span class="plain-syntax"> = </span><a href="2-hrr.html#SP11" class="function-link"><span class="function-syntax">Hierarchy::find</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">N</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><a href="2-emt.html#SP9" class="function-link"><span class="function-syntax">Emit::numeric_constant</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">iname</span><span class="plain-syntax">, </span><span class="constant-syntax">1</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><a href="2-hrr.html#SP17" class="function-link"><span class="function-syntax">Hierarchy::make_available</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">iname</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">iname</span><span class="plain-syntax">;</span>
<span class="plain-syntax">}</span>
</pre>
<p class="commentary firstcommentary"><a id="SP2" class="paragraph-anchor"></a><b>&#167;2. Compilation data. </b>Each <span class="extract"><span class="extract-syntax">command_grammar</span></span> object contains this data:
</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">cg_compilation_data</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">package_request</span><span class="plain-syntax"> *</span><span class="identifier-syntax">cg_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">inter_name</span><span class="plain-syntax"> *</span><span class="identifier-syntax">cg_token_iname</span><span class="plain-syntax">; </span><span class="comment-syntax"> </span><span class="extract"><span class="extract-syntax">CG_IS_TOKEN</span></span>
<span class="plain-syntax"> </span><span class="reserved-syntax">struct</span><span class="plain-syntax"> </span><span class="identifier-syntax">inter_name</span><span class="plain-syntax"> *</span><span class="identifier-syntax">property_GPR_fn_iname</span><span class="plain-syntax">; </span><span class="comment-syntax"> CG_IS_PROPERTY_NAME</span><span class="extract"></span>
<span class="plain-syntax"> </span><span class="reserved-syntax">struct</span><span class="plain-syntax"> </span><span class="identifier-syntax">text_stream</span><span class="plain-syntax"> *</span><span class="identifier-syntax">CG_IS_TOKEN_identifier</span><span class="plain-syntax">; </span><span class="comment-syntax"> CG_IS_PROPERTY_NAME</span><span class="extract"></span>
<span class="plain-syntax"> </span><span class="reserved-syntax">struct</span><span class="plain-syntax"> </span><span class="identifier-syntax">inter_name</span><span class="plain-syntax"> *</span><span class="identifier-syntax">consult_fn_iname</span><span class="plain-syntax">; </span><span class="comment-syntax"> CG_IS_CONSULT</span><span class="extract"></span>
<span class="plain-syntax">} </span><span class="reserved-syntax">cg_compilation_data</span><span class="plain-syntax">;</span>
<span class="reserved-syntax">cg_compilation_data</span><span class="plain-syntax"> </span><span class="function-syntax">RTCommandGrammars::new_compilation_data</span><span class="plain-syntax">(</span><span class="identifier-syntax">command_grammar</span><span class="plain-syntax"> *</span><span class="identifier-syntax">cg</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">cg_compilation_data</span><span class="plain-syntax"> </span><span class="identifier-syntax">cgcd</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">cgcd</span><span class="plain-syntax">.</span><span class="element-syntax">cg_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">cgcd</span><span class="plain-syntax">.</span><span class="element-syntax">consult_fn_iname</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">cgcd</span><span class="plain-syntax">.</span><span class="element-syntax">property_GPR_fn_iname</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">cgcd</span><span class="plain-syntax">.</span><span class="element-syntax">cg_token_iname</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">cgcd</span><span class="plain-syntax">.</span><span class="element-syntax">CG_IS_TOKEN_identifier</span><span class="plain-syntax"> = </span><span class="identifier-syntax">Str::new</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">cgcd</span><span class="plain-syntax">;</span>
<span class="plain-syntax">}</span>
<span class="identifier-syntax">package_request</span><span class="plain-syntax"> *</span><span class="function-syntax">RTCommandGrammars::package</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">RTCommandGrammars::package</span></span>:<br/><a href="7-cg.html#SP3">&#167;3</a></span></button><span class="plain-syntax">(</span><span class="identifier-syntax">command_grammar</span><span class="plain-syntax"> *</span><span class="identifier-syntax">cg</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">cg</span><span class="plain-syntax">-&gt;</span><span class="identifier-syntax">compilation_data</span><span class="plain-syntax">.</span><span class="element-syntax">cg_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">cg</span><span class="plain-syntax">-&gt;</span><span class="identifier-syntax">compilation_data</span><span class="plain-syntax">.</span><span class="element-syntax">cg_package</span><span class="plain-syntax"> =</span>
<span class="plain-syntax"> </span><a href="2-hrr.html#SP20" class="function-link"><span class="function-syntax">Hierarchy::completion_package</span></a><span class="plain-syntax">(</span><span class="constant-syntax">COMMAND_GRAMMARS_HAP</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">cg</span><span class="plain-syntax">-&gt;</span><span class="identifier-syntax">compilation_data</span><span class="plain-syntax">.</span><span class="element-syntax">cg_package</span><span class="plain-syntax">;</span>
<span class="plain-syntax">}</span>
<span class="identifier-syntax">inter_name</span><span class="plain-syntax"> *</span><span class="function-syntax">RTCommandGrammars::get_property_GPR_fn_iname</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">RTCommandGrammars::get_property_GPR_fn_iname</span></span>:<br/><a href="7-cg.html#SP5">&#167;5</a><br/>Parse Name Properties - <a href="6-pnp.html#SP10">&#167;10</a></span></button><span class="plain-syntax">(</span><span class="identifier-syntax">command_grammar</span><span class="plain-syntax"> *</span><span class="identifier-syntax">cg</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">cg</span><span class="plain-syntax"> == </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">) || (</span><span class="identifier-syntax">cg</span><span class="plain-syntax">-&gt;</span><span class="identifier-syntax">cg_is</span><span class="plain-syntax"> != </span><span class="identifier-syntax">CG_IS_PROPERTY_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">"prn_iname unavailable"</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">cg</span><span class="plain-syntax">-&gt;</span><span class="identifier-syntax">compilation_data</span><span class="plain-syntax">.</span><span class="element-syntax">property_GPR_fn_iname</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">cg</span><span class="plain-syntax">-&gt;</span><span class="identifier-syntax">compilation_data</span><span class="plain-syntax">.</span><span class="element-syntax">property_GPR_fn_iname</span><span class="plain-syntax"> =</span>
<span class="plain-syntax"> </span><a href="2-hrr.html#SP12" class="function-link"><span class="function-syntax">Hierarchy::make_iname_in</span></a><span class="plain-syntax">(</span><span class="constant-syntax">PROPERTY_GPR_FN_HL</span><span class="plain-syntax">,</span>
<span class="plain-syntax"> </span><a href="7-cg.html#SP2" class="function-link"><span class="function-syntax">RTCommandGrammars::package</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">cg</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">cg</span><span class="plain-syntax">-&gt;</span><span class="identifier-syntax">compilation_data</span><span class="plain-syntax">.</span><span class="element-syntax">property_GPR_fn_iname</span><span class="plain-syntax">;</span>
<span class="plain-syntax">}</span>
<span class="identifier-syntax">inter_name</span><span class="plain-syntax"> *</span><span class="function-syntax">RTCommandGrammars::get_cg_token_iname</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">RTCommandGrammars::get_cg_token_iname</span></span>:<br/><a href="7-cg.html#SP5">&#167;5</a><br/>Command Grammar Lines - <a href="7-cgl.html#SP10">&#167;10</a></span></button><span class="plain-syntax">(</span><span class="identifier-syntax">command_grammar</span><span class="plain-syntax"> *</span><span class="identifier-syntax">cg</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">cg</span><span class="plain-syntax"> == </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">) || (</span><span class="identifier-syntax">cg</span><span class="plain-syntax">-&gt;</span><span class="identifier-syntax">cg_is</span><span class="plain-syntax"> != </span><span class="identifier-syntax">CG_IS_TOKEN</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">"cg_token_iname unavailable"</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">cg</span><span class="plain-syntax">-&gt;</span><span class="identifier-syntax">compilation_data</span><span class="plain-syntax">.</span><span class="element-syntax">cg_token_iname</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">Str::len</span><span class="plain-syntax">(</span><span class="identifier-syntax">cg</span><span class="plain-syntax">-&gt;</span><span class="identifier-syntax">compilation_data</span><span class="plain-syntax">.</span><span class="element-syntax">CG_IS_TOKEN_identifier</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">cg</span><span class="plain-syntax">-&gt;</span><span class="identifier-syntax">compilation_data</span><span class="plain-syntax">.</span><span class="identifier-syntax">cg_token_iname</span><span class="plain-syntax"> =</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">Produce::find_by_name</span><span class="plain-syntax">(</span><a href="2-emt.html#SP1" class="function-link"><span class="function-syntax">Emit::tree</span></a><span class="plain-syntax">(),</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">cg</span><span class="plain-syntax">-&gt;</span><span class="identifier-syntax">compilation_data</span><span class="plain-syntax">.</span><span class="element-syntax">CG_IS_TOKEN_identifier</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">cg</span><span class="plain-syntax">-&gt;</span><span class="identifier-syntax">compilation_data</span><span class="plain-syntax">.</span><span class="identifier-syntax">cg_token_iname</span><span class="plain-syntax"> =</span>
<span class="plain-syntax"> </span><a href="2-hrr.html#SP12" class="function-link"><span class="function-syntax">Hierarchy::make_iname_in</span></a><span class="plain-syntax">(</span><span class="constant-syntax">PARSE_LINE_FN_HL</span><span class="plain-syntax">,</span>
<span class="plain-syntax"> </span><a href="7-cg.html#SP2" class="function-link"><span class="function-syntax">RTCommandGrammars::package</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">cg</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">cg</span><span class="plain-syntax">-&gt;</span><span class="identifier-syntax">compilation_data</span><span class="plain-syntax">.</span><span class="element-syntax">cg_token_iname</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">RTCommandGrammars::set_CG_IS_TOKEN_identifier</span><span class="plain-syntax">(</span><span class="identifier-syntax">command_grammar</span><span class="plain-syntax"> *</span><span class="identifier-syntax">cg</span><span class="plain-syntax">, </span><span class="identifier-syntax">wording</span><span class="plain-syntax"> </span><span class="identifier-syntax">W</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">cg</span><span class="plain-syntax">-&gt;</span><span class="identifier-syntax">compilation_data</span><span class="plain-syntax">.</span><span class="element-syntax">cg_token_iname</span><span class="plain-syntax">) </span><span class="identifier-syntax">internal_error</span><span class="plain-syntax">(</span><span class="string-syntax">"too late to translate"</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">cg</span><span class="plain-syntax">-&gt;</span><span class="identifier-syntax">compilation_data</span><span class="plain-syntax">.</span><span class="element-syntax">CG_IS_TOKEN_identifier</span><span class="plain-syntax">, </span><span class="string-syntax">"%N"</span><span class="plain-syntax">, </span><span class="identifier-syntax">Wordings::first_wn</span><span class="plain-syntax">(</span><span class="identifier-syntax">W</span><span class="plain-syntax">));</span>
<span class="plain-syntax">}</span>
</pre>
<ul class="endnotetexts"><li>The structure cg_compilation_data is private to this section.</li></ul>
<p class="commentary firstcommentary"><a id="SP3" class="paragraph-anchor"></a><b>&#167;3. </b>These are used to parse an explicit range of words (such as traditionally
found in the CONSULT command) at run time, and they are not I6 grammar
tokens, and do not appear in <span class="extract"><span class="extract-syntax">Verb</span></span> declarations: otherwise, such
routines are very similar to GPRs.
</p>
<p class="commentary">First, we need to look after a pointer to the CG used to hold the grammar
being matched against the snippet of words.
</p>
<pre class="displayed-code all-displayed-code code-font">
<span class="identifier-syntax">inter_name</span><span class="plain-syntax"> *</span><span class="function-syntax">RTCommandGrammars::get_consult_fn_iname</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">RTCommandGrammars::get_consult_fn_iname</span></span>:<br/><a href="7-cg.html#SP5">&#167;5</a></span></button><span class="plain-syntax">(</span><span class="identifier-syntax">command_grammar</span><span class="plain-syntax"> *</span><span class="identifier-syntax">cg</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">cg</span><span class="plain-syntax"> == </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">) || (</span><span class="identifier-syntax">cg</span><span class="plain-syntax">-&gt;</span><span class="identifier-syntax">cg_is</span><span class="plain-syntax"> != </span><span class="identifier-syntax">CG_IS_CONSULT</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">"cg_token_iname unavailable"</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">cg</span><span class="plain-syntax">-&gt;</span><span class="identifier-syntax">compilation_data</span><span class="plain-syntax">.</span><span class="element-syntax">consult_fn_iname</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">cg</span><span class="plain-syntax">-&gt;</span><span class="identifier-syntax">compilation_data</span><span class="plain-syntax">.</span><span class="element-syntax">consult_fn_iname</span><span class="plain-syntax"> =</span>
<span class="plain-syntax"> </span><a href="2-hrr.html#SP12" class="function-link"><span class="function-syntax">Hierarchy::make_iname_in</span></a><span class="plain-syntax">(</span><span class="constant-syntax">CONSULT_FN_HL</span><span class="plain-syntax">, </span><a href="7-cg.html#SP2" class="function-link"><span class="function-syntax">RTCommandGrammars::package</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">cg</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">cg</span><span class="plain-syntax">-&gt;</span><span class="identifier-syntax">compilation_data</span><span class="plain-syntax">.</span><span class="element-syntax">consult_fn_iname</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">RTCommandGrammars::create_no_verb_verb</span><span class="plain-syntax">(</span><span class="identifier-syntax">command_grammar</span><span class="plain-syntax"> *</span><span class="identifier-syntax">cg</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><a href="2-emt.html#SP9" class="function-link"><span class="function-syntax">Emit::numeric_constant</span></a><span class="plain-syntax">(</span><a href="2-hrr.html#SP11" class="function-link"><span class="function-syntax">Hierarchy::find</span></a><span class="plain-syntax">(</span><span class="constant-syntax">NO_VERB_VERB_DEFINED_HL</span><span class="plain-syntax">), (</span><span class="identifier-syntax">inter_ti</span><span class="plain-syntax">) </span><span class="constant-syntax">1</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">global_compilation_settings</span><span class="plain-syntax">.</span><span class="identifier-syntax">no_verb_verb_exists</span><span class="plain-syntax"> = </span><span class="identifier-syntax">TRUE</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. Phases III and IV: Sort and Compile Grammar. </b>At this highest level phases III and IV are intermingled, in that Phase III
always precedes Phase IV for any given list of grammar lines, but each CG
goes through both Phase III and IV before the next begins Phase III. So it
would not be appropriate to print banners like "Phase III begins here"
in the debugging log.
</p>
<p class="commentary">Finally, though, some substantive work to do: because it is the CG which
records the purpose of the grammar in question, we must compile a suitable
I6 context for the grammar to appear within.
</p>
<p class="commentary">Four of the five kinds of CG are compiled by the routine below: the fifth
kind is compiled in "Tokens Parsing Values", in response to different
<span class="extract"><span class="extract-syntax">.i6t</span></span> commands, because the token routines are needed at a different position
in the final I6 output.
</p>
<p class="commentary">Sequence is important here: in particular the GPRs must exist before the
<span class="extract"><span class="extract-syntax">Verb</span></span> directives, because otherwise I6 will throw not-declared-yet errors.
</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">RTCommandGrammars::compile_all</span><span class="plain-syntax">(</span><span class="reserved-syntax">void</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">command_grammar</span><span class="plain-syntax"> *</span><span class="identifier-syntax">cg</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">LOOP_OVER</span><span class="plain-syntax">(</span><span class="identifier-syntax">cg</span><span class="plain-syntax">, </span><span class="identifier-syntax">command_grammar</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">cg</span><span class="plain-syntax">-&gt;</span><span class="identifier-syntax">cg_is</span><span class="plain-syntax"> == </span><span class="identifier-syntax">CG_IS_TOKEN</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">desc</span><span class="plain-syntax"> = </span><span class="identifier-syntax">Str::new</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">desc</span><span class="plain-syntax">, </span><span class="string-syntax">"command grammar for token"</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">Sequence::queue</span><span class="plain-syntax">(&amp;</span><a href="7-cg.html#SP5" class="function-link"><span class="function-syntax">RTCommandGrammars::compile</span></a><span class="plain-syntax">,</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">STORE_POINTER_command_grammar</span><span class="plain-syntax">(</span><span class="identifier-syntax">cg</span><span class="plain-syntax">), </span><span class="identifier-syntax">desc</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> }</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">LOOP_OVER</span><span class="plain-syntax">(</span><span class="identifier-syntax">cg</span><span class="plain-syntax">, </span><span class="identifier-syntax">command_grammar</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">cg</span><span class="plain-syntax">-&gt;</span><span class="identifier-syntax">cg_is</span><span class="plain-syntax"> == </span><span class="identifier-syntax">CG_IS_COMMAND</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">desc</span><span class="plain-syntax"> = </span><span class="identifier-syntax">Str::new</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">desc</span><span class="plain-syntax">, </span><span class="string-syntax">"command grammar for command '%W'"</span><span class="plain-syntax">, </span><span class="identifier-syntax">cg</span><span class="plain-syntax">-&gt;</span><span class="identifier-syntax">command</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">Sequence::queue</span><span class="plain-syntax">(&amp;</span><a href="7-cg.html#SP5" class="function-link"><span class="function-syntax">RTCommandGrammars::compile</span></a><span class="plain-syntax">,</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">STORE_POINTER_command_grammar</span><span class="plain-syntax">(</span><span class="identifier-syntax">cg</span><span class="plain-syntax">), </span><span class="identifier-syntax">desc</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> }</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">LOOP_OVER</span><span class="plain-syntax">(</span><span class="identifier-syntax">cg</span><span class="plain-syntax">, </span><span class="identifier-syntax">command_grammar</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">cg</span><span class="plain-syntax">-&gt;</span><span class="identifier-syntax">cg_is</span><span class="plain-syntax"> == </span><span class="identifier-syntax">CG_IS_SUBJECT</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">desc</span><span class="plain-syntax"> = </span><span class="identifier-syntax">Str::new</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">desc</span><span class="plain-syntax">, </span><span class="string-syntax">"command grammar for parse_name on '%W'"</span><span class="plain-syntax">,</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">InferenceSubjects::get_name_text</span><span class="plain-syntax">(</span><span class="identifier-syntax">cg</span><span class="plain-syntax">-&gt;</span><span class="identifier-syntax">subj_understood</span><span class="plain-syntax">));</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">Sequence::queue</span><span class="plain-syntax">(&amp;</span><a href="7-cg.html#SP5" class="function-link"><span class="function-syntax">RTCommandGrammars::compile</span></a><span class="plain-syntax">,</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">STORE_POINTER_command_grammar</span><span class="plain-syntax">(</span><span class="identifier-syntax">cg</span><span class="plain-syntax">), </span><span class="identifier-syntax">desc</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> }</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">LOOP_OVER</span><span class="plain-syntax">(</span><span class="identifier-syntax">cg</span><span class="plain-syntax">, </span><span class="identifier-syntax">command_grammar</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">cg</span><span class="plain-syntax">-&gt;</span><span class="identifier-syntax">cg_is</span><span class="plain-syntax"> == </span><span class="identifier-syntax">CG_IS_CONSULT</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">desc</span><span class="plain-syntax"> = </span><span class="identifier-syntax">Str::new</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">desc</span><span class="plain-syntax">, </span><span class="string-syntax">"command grammar for consult at '%W'"</span><span class="plain-syntax">,</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">Node::get_text</span><span class="plain-syntax">(</span><span class="identifier-syntax">cg</span><span class="plain-syntax">-&gt;</span><span class="identifier-syntax">where_cg_created</span><span class="plain-syntax">));</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">Sequence::queue</span><span class="plain-syntax">(&amp;</span><a href="7-cg.html#SP5" class="function-link"><span class="function-syntax">RTCommandGrammars::compile</span></a><span class="plain-syntax">,</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">STORE_POINTER_command_grammar</span><span class="plain-syntax">(</span><span class="identifier-syntax">cg</span><span class="plain-syntax">), </span><span class="identifier-syntax">desc</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> }</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">LOOP_OVER</span><span class="plain-syntax">(</span><span class="identifier-syntax">cg</span><span class="plain-syntax">, </span><span class="identifier-syntax">command_grammar</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">cg</span><span class="plain-syntax">-&gt;</span><span class="identifier-syntax">cg_is</span><span class="plain-syntax"> == </span><span class="identifier-syntax">CG_IS_PROPERTY_NAME</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">desc</span><span class="plain-syntax"> = </span><span class="identifier-syntax">Str::new</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">desc</span><span class="plain-syntax">, </span><span class="string-syntax">"command grammar for property '%W'"</span><span class="plain-syntax">,</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">cg</span><span class="plain-syntax">-&gt;</span><span class="identifier-syntax">prn_understood</span><span class="plain-syntax">-&gt;</span><span class="identifier-syntax">name</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">Sequence::queue</span><span class="plain-syntax">(&amp;</span><a href="7-cg.html#SP5" class="function-link"><span class="function-syntax">RTCommandGrammars::compile</span></a><span class="plain-syntax">,</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">STORE_POINTER_command_grammar</span><span class="plain-syntax">(</span><span class="identifier-syntax">cg</span><span class="plain-syntax">), </span><span class="identifier-syntax">desc</span><span class="plain-syntax">);</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. </b>The following function unites, so far as possible, the different forms of
CG by compiling each of them as a sandwich: top slice, filling, bottom slice.
</p>
<p class="commentary">The interesting case is of a CG representing names for an object: the
name-behaviour needs to be inherited from the object's kind, and so on up
the kinds hierarchy, but this is a case where I7's kind hierarchy does not
agree with I6's class hierarchy. I6 has no (nice) way to inherit <span class="extract"><span class="extract-syntax">parse_name</span></span>
behaviour from a class to an instance. So we will simply pile up extra
fillings into the sandwich. The order of these is important: by getting
in first, grammar for the instance takes priority; its immediate kind has
next priority, and so on up the hierarchy.
</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">RTCommandGrammars::compile</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">RTCommandGrammars::compile</span></span>:<br/><a href="7-cg.html#SP4">&#167;4</a></span></button><span class="plain-syntax">(</span><span class="identifier-syntax">compilation_subtask</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">command_grammar</span><span class="plain-syntax"> *</span><span class="identifier-syntax">cg</span><span class="plain-syntax"> = </span><span class="identifier-syntax">RETRIEVE_POINTER_command_grammar</span><span class="plain-syntax">(</span><span class="identifier-syntax">t</span><span class="plain-syntax">-&gt;</span><span class="identifier-syntax">data</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">CGLines::list_length</span><span class="plain-syntax">(</span><span class="identifier-syntax">cg</span><span class="plain-syntax">) == </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="plain-syntax"> </span><span class="identifier-syntax">LOGIF</span><span class="plain-syntax">(</span><span class="identifier-syntax">GRAMMAR</span><span class="plain-syntax">, </span><span class="string-syntax">"Compiling command grammar $G\n"</span><span class="plain-syntax">, </span><span class="identifier-syntax">cg</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">current_sentence</span><span class="plain-syntax"> = </span><span class="identifier-syntax">cg</span><span class="plain-syntax">-&gt;</span><span class="identifier-syntax">where_cg_created</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><a href="7-cgl.html#SP4" class="function-link"><span class="function-syntax">RTCommandGrammarLines::reset_labels</span></a><span class="plain-syntax">();</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">switch</span><span class="plain-syntax">(</span><span class="identifier-syntax">cg</span><span class="plain-syntax">-&gt;</span><span class="identifier-syntax">cg_is</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">case</span><span class="plain-syntax"> </span><span class="identifier-syntax">CG_IS_COMMAND:</span><span class="plain-syntax"> {</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">package_request</span><span class="plain-syntax"> *</span><span class="identifier-syntax">PR</span><span class="plain-syntax"> = </span><a href="2-hrr.html#SP20" class="function-link"><span class="function-syntax">Hierarchy::completion_package</span></a><span class="plain-syntax">(</span><span class="constant-syntax">COMMANDS_HAP</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">inter_name</span><span class="plain-syntax"> *</span><span class="identifier-syntax">array_iname</span><span class="plain-syntax"> = </span><a href="2-hrr.html#SP12" class="function-link"><span class="function-syntax">Hierarchy::make_iname_in</span></a><span class="plain-syntax">(</span><span class="constant-syntax">VERB_DECLARATION_ARRAY_HL</span><span class="plain-syntax">, </span><span class="identifier-syntax">PR</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">packaging_state</span><span class="plain-syntax"> </span><span class="identifier-syntax">save</span><span class="plain-syntax"> = </span><a href="7-cg.html#SP7" class="function-link"><span class="function-syntax">RTCommandGrammars::cg_compile_Verb_directive_header</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">cg</span><span class="plain-syntax">, </span><span class="identifier-syntax">array_iname</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><a href="7-cg.html#SP9" class="function-link"><span class="function-syntax">RTCommandGrammars::cg_compile_lines</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">NULL</span><span class="plain-syntax">, </span><span class="identifier-syntax">cg</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><a href="2-ea.html#SP6" class="function-link"><span class="function-syntax">EmitArrays::end</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">save</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">break</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> }</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">case</span><span class="plain-syntax"> </span><span class="identifier-syntax">CG_IS_TOKEN:</span><span class="plain-syntax"> {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">gpr_kit</span><span class="plain-syntax"> </span><span class="identifier-syntax">gprk</span><span class="plain-syntax"> = </span><a href="2-gpr.html#SP3" class="function-link"><span class="function-syntax">GPRs::new_kit</span></a><span class="plain-syntax">();</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">inter_name</span><span class="plain-syntax"> *</span><span class="identifier-syntax">iname</span><span class="plain-syntax"> = </span><a href="7-cg.html#SP2" class="function-link"><span class="function-syntax">RTCommandGrammars::get_cg_token_iname</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">cg</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">packaging_state</span><span class="plain-syntax"> </span><span class="identifier-syntax">save</span><span class="plain-syntax"> = </span><span class="identifier-syntax">Functions::begin</span><span class="plain-syntax">(</span><span class="identifier-syntax">iname</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><a href="2-gpr.html#SP4" class="function-link"><span class="function-syntax">GPRs::add_original_var</span></a><span class="plain-syntax">(&amp;</span><span class="identifier-syntax">gprk</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><a href="2-gpr.html#SP4" class="function-link"><span class="function-syntax">GPRs::add_standard_vars</span></a><span class="plain-syntax">(&amp;</span><span class="identifier-syntax">gprk</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><a href="2-ec.html#SP13" class="function-link"><span class="function-syntax">EmitCode::inv</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">STORE_BIP</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><a href="2-ec.html#SP3" class="function-link"><span class="function-syntax">EmitCode::down</span></a><span class="plain-syntax">();</span>
<span class="plain-syntax"> </span><a href="2-ec.html#SP12" class="function-link"><span class="function-syntax">EmitCode::ref_symbol</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">K_value</span><span class="plain-syntax">, </span><span class="identifier-syntax">gprk</span><span class="plain-syntax">.</span><span class="element-syntax">original_wn_s</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><a href="2-ec.html#SP7" class="function-link"><span class="function-syntax">EmitCode::val_iname</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">K_value</span><span class="plain-syntax">, </span><a href="2-hrr.html#SP11" class="function-link"><span class="function-syntax">Hierarchy::find</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">WN_HL</span><span class="plain-syntax">));</span>
<span class="plain-syntax"> </span><a href="2-ec.html#SP3" class="function-link"><span class="function-syntax">EmitCode::up</span></a><span class="plain-syntax">();</span>
<span class="plain-syntax"> </span><a href="2-ec.html#SP13" class="function-link"><span class="function-syntax">EmitCode::inv</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">STORE_BIP</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><a href="2-ec.html#SP3" class="function-link"><span class="function-syntax">EmitCode::down</span></a><span class="plain-syntax">();</span>
<span class="plain-syntax"> </span><a href="2-ec.html#SP12" class="function-link"><span class="function-syntax">EmitCode::ref_symbol</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">K_value</span><span class="plain-syntax">, </span><span class="identifier-syntax">gprk</span><span class="plain-syntax">.</span><span class="element-syntax">rv_s</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><a href="2-ec.html#SP7" class="function-link"><span class="function-syntax">EmitCode::val_iname</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">K_value</span><span class="plain-syntax">, </span><a href="2-hrr.html#SP11" class="function-link"><span class="function-syntax">Hierarchy::find</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">GPR_PREPOSITION_HL</span><span class="plain-syntax">));</span>
<span class="plain-syntax"> </span><a href="2-ec.html#SP3" class="function-link"><span class="function-syntax">EmitCode::up</span></a><span class="plain-syntax">();</span>
<span class="plain-syntax"> </span><a href="7-cg.html#SP9" class="function-link"><span class="function-syntax">RTCommandGrammars::cg_compile_lines</span></a><span class="plain-syntax">(&amp;</span><span class="identifier-syntax">gprk</span><span class="plain-syntax">, </span><span class="identifier-syntax">cg</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><a href="2-ec.html#SP13" class="function-link"><span class="function-syntax">EmitCode::inv</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">RETURN_BIP</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><a href="2-ec.html#SP3" class="function-link"><span class="function-syntax">EmitCode::down</span></a><span class="plain-syntax">();</span>
<span class="plain-syntax"> </span><a href="2-ec.html#SP7" class="function-link"><span class="function-syntax">EmitCode::val_iname</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">K_value</span><span class="plain-syntax">, </span><a href="2-hrr.html#SP11" class="function-link"><span class="function-syntax">Hierarchy::find</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">GPR_FAIL_HL</span><span class="plain-syntax">));</span>
<span class="plain-syntax"> </span><a href="2-ec.html#SP3" class="function-link"><span class="function-syntax">EmitCode::up</span></a><span class="plain-syntax">();</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">Functions::end</span><span class="plain-syntax">(</span><span class="identifier-syntax">save</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">break</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> }</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">case</span><span class="plain-syntax"> </span><span class="identifier-syntax">CG_IS_CONSULT:</span><span class="plain-syntax"> {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">gpr_kit</span><span class="plain-syntax"> </span><span class="identifier-syntax">gprk</span><span class="plain-syntax"> = </span><a href="2-gpr.html#SP3" class="function-link"><span class="function-syntax">GPRs::new_kit</span></a><span class="plain-syntax">();</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">inter_name</span><span class="plain-syntax"> *</span><span class="identifier-syntax">iname</span><span class="plain-syntax"> = </span><a href="7-cg.html#SP3" class="function-link"><span class="function-syntax">RTCommandGrammars::get_consult_fn_iname</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">cg</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">packaging_state</span><span class="plain-syntax"> </span><span class="identifier-syntax">save</span><span class="plain-syntax"> = </span><span class="identifier-syntax">Functions::begin</span><span class="plain-syntax">(</span><span class="identifier-syntax">iname</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><a href="2-gpr.html#SP4" class="function-link"><span class="function-syntax">GPRs::add_range_vars</span></a><span class="plain-syntax">(&amp;</span><span class="identifier-syntax">gprk</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><a href="2-gpr.html#SP4" class="function-link"><span class="function-syntax">GPRs::add_original_var</span></a><span class="plain-syntax">(&amp;</span><span class="identifier-syntax">gprk</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><a href="2-gpr.html#SP4" class="function-link"><span class="function-syntax">GPRs::add_standard_vars</span></a><span class="plain-syntax">(&amp;</span><span class="identifier-syntax">gprk</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><a href="2-ec.html#SP13" class="function-link"><span class="function-syntax">EmitCode::inv</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">STORE_BIP</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><a href="2-ec.html#SP3" class="function-link"><span class="function-syntax">EmitCode::down</span></a><span class="plain-syntax">();</span>
<span class="plain-syntax"> </span><a href="2-ec.html#SP12" class="function-link"><span class="function-syntax">EmitCode::ref_iname</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">K_value</span><span class="plain-syntax">, </span><a href="2-hrr.html#SP11" class="function-link"><span class="function-syntax">Hierarchy::find</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">WN_HL</span><span class="plain-syntax">));</span>
<span class="plain-syntax"> </span><a href="2-ec.html#SP7" class="function-link"><span class="function-syntax">EmitCode::val_symbol</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">K_value</span><span class="plain-syntax">, </span><span class="identifier-syntax">gprk</span><span class="plain-syntax">.</span><span class="element-syntax">range_from_s</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><a href="2-ec.html#SP3" class="function-link"><span class="function-syntax">EmitCode::up</span></a><span class="plain-syntax">();</span>
<span class="plain-syntax"> </span><a href="2-ec.html#SP13" class="function-link"><span class="function-syntax">EmitCode::inv</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">STORE_BIP</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><a href="2-ec.html#SP3" class="function-link"><span class="function-syntax">EmitCode::down</span></a><span class="plain-syntax">();</span>
<span class="plain-syntax"> </span><a href="2-ec.html#SP12" class="function-link"><span class="function-syntax">EmitCode::ref_symbol</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">K_value</span><span class="plain-syntax">, </span><span class="identifier-syntax">gprk</span><span class="plain-syntax">.</span><span class="element-syntax">original_wn_s</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><a href="2-ec.html#SP7" class="function-link"><span class="function-syntax">EmitCode::val_iname</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">K_value</span><span class="plain-syntax">, </span><a href="2-hrr.html#SP11" class="function-link"><span class="function-syntax">Hierarchy::find</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">WN_HL</span><span class="plain-syntax">));</span>
<span class="plain-syntax"> </span><a href="2-ec.html#SP3" class="function-link"><span class="function-syntax">EmitCode::up</span></a><span class="plain-syntax">();</span>
<span class="plain-syntax"> </span><a href="2-ec.html#SP13" class="function-link"><span class="function-syntax">EmitCode::inv</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">STORE_BIP</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><a href="2-ec.html#SP3" class="function-link"><span class="function-syntax">EmitCode::down</span></a><span class="plain-syntax">();</span>
<span class="plain-syntax"> </span><a href="2-ec.html#SP12" class="function-link"><span class="function-syntax">EmitCode::ref_symbol</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">K_value</span><span class="plain-syntax">, </span><span class="identifier-syntax">gprk</span><span class="plain-syntax">.</span><span class="element-syntax">rv_s</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><a href="2-ec.html#SP7" class="function-link"><span class="function-syntax">EmitCode::val_iname</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">K_value</span><span class="plain-syntax">, </span><a href="2-hrr.html#SP11" class="function-link"><span class="function-syntax">Hierarchy::find</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">GPR_PREPOSITION_HL</span><span class="plain-syntax">));</span>
<span class="plain-syntax"> </span><a href="2-ec.html#SP3" class="function-link"><span class="function-syntax">EmitCode::up</span></a><span class="plain-syntax">();</span>
<span class="plain-syntax"> </span><a href="7-cg.html#SP9" class="function-link"><span class="function-syntax">RTCommandGrammars::cg_compile_lines</span></a><span class="plain-syntax">(&amp;</span><span class="identifier-syntax">gprk</span><span class="plain-syntax">, </span><span class="identifier-syntax">cg</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><a href="2-ec.html#SP13" class="function-link"><span class="function-syntax">EmitCode::inv</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">RETURN_BIP</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><a href="2-ec.html#SP3" class="function-link"><span class="function-syntax">EmitCode::down</span></a><span class="plain-syntax">();</span>
<span class="plain-syntax"> </span><a href="2-ec.html#SP7" class="function-link"><span class="function-syntax">EmitCode::val_iname</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">K_value</span><span class="plain-syntax">, </span><a href="2-hrr.html#SP11" class="function-link"><span class="function-syntax">Hierarchy::find</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">GPR_FAIL_HL</span><span class="plain-syntax">));</span>
<span class="plain-syntax"> </span><a href="2-ec.html#SP3" class="function-link"><span class="function-syntax">EmitCode::up</span></a><span class="plain-syntax">();</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">Functions::end</span><span class="plain-syntax">(</span><span class="identifier-syntax">save</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">break</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> }</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">case</span><span class="plain-syntax"> </span><span class="identifier-syntax">CG_IS_SUBJECT:</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">break</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">case</span><span class="plain-syntax"> </span><span class="identifier-syntax">CG_IS_VALUE:</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">internal_error</span><span class="plain-syntax">(</span><span class="string-syntax">"iv"</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">break</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">case</span><span class="plain-syntax"> </span><span class="identifier-syntax">CG_IS_PROPERTY_NAME:</span><span class="plain-syntax"> {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">gpr_kit</span><span class="plain-syntax"> </span><span class="identifier-syntax">gprk</span><span class="plain-syntax"> = </span><a href="2-gpr.html#SP3" class="function-link"><span class="function-syntax">GPRs::new_kit</span></a><span class="plain-syntax">();</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">inter_name</span><span class="plain-syntax"> *</span><span class="identifier-syntax">iname</span><span class="plain-syntax"> = </span><a href="7-cg.html#SP2" class="function-link"><span class="function-syntax">RTCommandGrammars::get_property_GPR_fn_iname</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">cg</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">packaging_state</span><span class="plain-syntax"> </span><span class="identifier-syntax">save</span><span class="plain-syntax"> = </span><span class="identifier-syntax">Functions::begin</span><span class="plain-syntax">(</span><span class="identifier-syntax">iname</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><a href="2-gpr.html#SP4" class="function-link"><span class="function-syntax">GPRs::add_original_var</span></a><span class="plain-syntax">(&amp;</span><span class="identifier-syntax">gprk</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><a href="2-gpr.html#SP4" class="function-link"><span class="function-syntax">GPRs::add_standard_vars</span></a><span class="plain-syntax">(&amp;</span><span class="identifier-syntax">gprk</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><a href="2-ec.html#SP13" class="function-link"><span class="function-syntax">EmitCode::inv</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">STORE_BIP</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><a href="2-ec.html#SP3" class="function-link"><span class="function-syntax">EmitCode::down</span></a><span class="plain-syntax">();</span>
<span class="plain-syntax"> </span><a href="2-ec.html#SP12" class="function-link"><span class="function-syntax">EmitCode::ref_symbol</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">K_value</span><span class="plain-syntax">, </span><span class="identifier-syntax">gprk</span><span class="plain-syntax">.</span><span class="element-syntax">original_wn_s</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><a href="2-ec.html#SP7" class="function-link"><span class="function-syntax">EmitCode::val_iname</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">K_value</span><span class="plain-syntax">, </span><a href="2-hrr.html#SP11" class="function-link"><span class="function-syntax">Hierarchy::find</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">WN_HL</span><span class="plain-syntax">));</span>
<span class="plain-syntax"> </span><a href="2-ec.html#SP3" class="function-link"><span class="function-syntax">EmitCode::up</span></a><span class="plain-syntax">();</span>
<span class="plain-syntax"> </span><a href="2-ec.html#SP13" class="function-link"><span class="function-syntax">EmitCode::inv</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">STORE_BIP</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><a href="2-ec.html#SP3" class="function-link"><span class="function-syntax">EmitCode::down</span></a><span class="plain-syntax">();</span>
<span class="plain-syntax"> </span><a href="2-ec.html#SP12" class="function-link"><span class="function-syntax">EmitCode::ref_symbol</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">K_value</span><span class="plain-syntax">, </span><span class="identifier-syntax">gprk</span><span class="plain-syntax">.</span><span class="element-syntax">rv_s</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><a href="2-ec.html#SP7" class="function-link"><span class="function-syntax">EmitCode::val_iname</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">K_value</span><span class="plain-syntax">, </span><a href="2-hrr.html#SP11" class="function-link"><span class="function-syntax">Hierarchy::find</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">GPR_PREPOSITION_HL</span><span class="plain-syntax">));</span>
<span class="plain-syntax"> </span><a href="2-ec.html#SP3" class="function-link"><span class="function-syntax">EmitCode::up</span></a><span class="plain-syntax">();</span>
<span class="plain-syntax"> </span><a href="7-cg.html#SP9" class="function-link"><span class="function-syntax">RTCommandGrammars::cg_compile_lines</span></a><span class="plain-syntax">(&amp;</span><span class="identifier-syntax">gprk</span><span class="plain-syntax">, </span><span class="identifier-syntax">cg</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><a href="2-ec.html#SP13" class="function-link"><span class="function-syntax">EmitCode::inv</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">RETURN_BIP</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><a href="2-ec.html#SP3" class="function-link"><span class="function-syntax">EmitCode::down</span></a><span class="plain-syntax">();</span>
<span class="plain-syntax"> </span><a href="2-ec.html#SP7" class="function-link"><span class="function-syntax">EmitCode::val_iname</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">K_value</span><span class="plain-syntax">, </span><a href="2-hrr.html#SP11" class="function-link"><span class="function-syntax">Hierarchy::find</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">GPR_FAIL_HL</span><span class="plain-syntax">));</span>
<span class="plain-syntax"> </span><a href="2-ec.html#SP3" class="function-link"><span class="function-syntax">EmitCode::up</span></a><span class="plain-syntax">();</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">Functions::end</span><span class="plain-syntax">(</span><span class="identifier-syntax">save</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">break</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="SP6" class="paragraph-anchor"></a><b>&#167;6. </b>Some tokens require suitable I6 routines to have already been compiled,
if they are to work nicely: the following routine goes through the tokens
by exploring each CG in turn.
</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">RTCommandGrammars::compile_conditions</span><span class="plain-syntax">(</span><span class="reserved-syntax">void</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">command_grammar</span><span class="plain-syntax"> *</span><span class="identifier-syntax">cg</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">LOOP_OVER</span><span class="plain-syntax">(</span><span class="identifier-syntax">cg</span><span class="plain-syntax">, </span><span class="identifier-syntax">command_grammar</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">current_sentence</span><span class="plain-syntax"> = </span><span class="identifier-syntax">cg</span><span class="plain-syntax">-&gt;</span><span class="identifier-syntax">where_cg_created</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">LOOP_THROUGH_UNSORTED_CG_LINES</span><span class="plain-syntax">(</span><span class="identifier-syntax">cgl</span><span class="plain-syntax">, </span><span class="identifier-syntax">cg</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><a href="7-cgl.html#SP2" class="function-link"><span class="function-syntax">RTCommandGrammarLines::cgl_compile_condition_token_as_needed</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">cgl</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><a href="7-cgl.html#SP2" class="function-link"><span class="function-syntax">RTCommandGrammarLines::cgl_compile_mistake_token_as_needed</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">cgl</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="SP7" class="paragraph-anchor"></a><b>&#167;7. </b>Command CGs are destined to be compiled into <span class="extract"><span class="extract-syntax">Verb</span></span> directives, as follows.
</p>
<pre class="displayed-code all-displayed-code code-font">
<span class="identifier-syntax">packaging_state</span><span class="plain-syntax"> </span><span class="function-syntax">RTCommandGrammars::cg_compile_Verb_directive_header</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">RTCommandGrammars::cg_compile_Verb_directive_header</span></span>:<br/><a href="7-cg.html#SP5">&#167;5</a></span></button><span class="plain-syntax">(</span><span class="identifier-syntax">command_grammar</span><span class="plain-syntax"> *</span><span class="identifier-syntax">cg</span><span class="plain-syntax">, </span><span class="identifier-syntax">inter_name</span><span class="plain-syntax"> *</span><span class="identifier-syntax">array_iname</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">cg</span><span class="plain-syntax">-&gt;</span><span class="identifier-syntax">cg_is</span><span class="plain-syntax"> != </span><span class="identifier-syntax">CG_IS_COMMAND</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">"tried to compile Verb from non-command CG"</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">CGLines::list_length</span><span class="plain-syntax">(</span><span class="identifier-syntax">cg</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">internal_error</span><span class="plain-syntax">(</span><span class="string-syntax">"compiling Verb for empty grammar"</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">packaging_state</span><span class="plain-syntax"> </span><span class="identifier-syntax">save</span><span class="plain-syntax"> = </span><a href="2-ea.html#SP2" class="function-link"><span class="function-syntax">EmitArrays::begin_late_verb</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">array_iname</span><span class="plain-syntax">, </span><span class="identifier-syntax">K_value</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">Wordings::empty</span><span class="plain-syntax">(</span><span class="identifier-syntax">cg</span><span class="plain-syntax">-&gt;</span><span class="identifier-syntax">command</span><span class="plain-syntax">))</span>
<span class="plain-syntax"> </span><a href="2-ea.html#SP4" class="function-link"><span class="function-syntax">EmitArrays::dword_entry</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">I</span><span class="string-syntax">"no.verb"</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">TEMPORARY_TEXT</span><span class="plain-syntax">(</span><span class="identifier-syntax">WD</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">WD</span><span class="plain-syntax">, </span><span class="string-syntax">"%N"</span><span class="plain-syntax">, </span><span class="identifier-syntax">Wordings::first_wn</span><span class="plain-syntax">(</span><span class="identifier-syntax">cg</span><span class="plain-syntax">-&gt;</span><span class="identifier-syntax">command</span><span class="plain-syntax">));</span>
<span class="plain-syntax"> </span><a href="2-ea.html#SP4" class="function-link"><span class="function-syntax">EmitArrays::dword_entry</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">WD</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">WD</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;cg-&gt;</span><span class="identifier-syntax">no_aliased_commands</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">TEMPORARY_TEXT</span><span class="plain-syntax">(</span><span class="identifier-syntax">WD</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">WD</span><span class="plain-syntax">, </span><span class="string-syntax">"%N"</span><span class="plain-syntax">, </span><span class="identifier-syntax">Wordings::first_wn</span><span class="plain-syntax">(</span><span class="identifier-syntax">cg</span><span class="plain-syntax">-&gt;</span><span class="identifier-syntax">aliased_command</span><span class="plain-syntax">[</span><span class="identifier-syntax">i</span><span class="plain-syntax">]));</span>
<span class="plain-syntax"> </span><a href="2-ea.html#SP4" class="function-link"><span class="function-syntax">EmitArrays::dword_entry</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">WD</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">WD</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><span class="identifier-syntax">save</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. </b>The special thing about <span class="extract"><span class="extract-syntax">CG_IS_SUBJECT</span></span> grammars is that each is attached
to an inference subject, and when we compile them we recurse up the subject
hierarchy: thus if the red ball is of kind ball which is of kind thing,
then the <span class="extract"><span class="extract-syntax">parse_name</span></span> for the red ball consists of grammar lines specified
for the red ball, then those specified for all balls, and lastly those
specified for all things. (This mimics I6 class-to-instance inheritance.)
</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">RTCommandGrammars::cg_compile_parse_name_lines</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">RTCommandGrammars::cg_compile_parse_name_lines</span></span>:<br/>Parse Name Properties - <a href="6-pnp.html#SP3">&#167;3</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">gpr_kit</span><span class="plain-syntax"> *</span><span class="identifier-syntax">gprk</span><span class="plain-syntax">, </span><span class="identifier-syntax">command_grammar</span><span class="plain-syntax"> *</span><span class="identifier-syntax">cg</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">inference_subject</span><span class="plain-syntax"> *</span><span class="identifier-syntax">subj</span><span class="plain-syntax"> = </span><span class="identifier-syntax">cg</span><span class="plain-syntax">-&gt;</span><span class="identifier-syntax">subj_understood</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">PARSING_DATA_FOR_SUBJ</span><span class="plain-syntax">(</span><span class="identifier-syntax">subj</span><span class="plain-syntax">)-&gt;</span><span class="identifier-syntax">understand_as_this_subject</span><span class="plain-syntax"> != </span><span class="identifier-syntax">cg</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">"link between subject and CG broken"</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">GRAMMAR</span><span class="plain-syntax">, </span><span class="string-syntax">"Parse_name content for $j:\n"</span><span class="plain-syntax">, </span><span class="identifier-syntax">subj</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><a href="7-cg.html#SP9" class="function-link"><span class="function-syntax">RTCommandGrammars::cg_compile_lines</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">gprk</span><span class="plain-syntax">, </span><span class="identifier-syntax">PARSING_DATA_FOR_SUBJ</span><span class="plain-syntax">(</span><span class="identifier-syntax">subj</span><span class="plain-syntax">)-&gt;</span><span class="identifier-syntax">understand_as_this_subject</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">inference_subject</span><span class="plain-syntax"> *</span><span class="identifier-syntax">infs</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">for</span><span class="plain-syntax"> (</span><span class="identifier-syntax">infs</span><span class="plain-syntax"> = </span><span class="identifier-syntax">InferenceSubjects::narrowest_broader_subject</span><span class="plain-syntax">(</span><span class="identifier-syntax">subj</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">infs</span><span class="plain-syntax">; </span><span class="identifier-syntax">infs</span><span class="plain-syntax"> = </span><span class="identifier-syntax">InferenceSubjects::narrowest_broader_subject</span><span class="plain-syntax">(</span><span class="identifier-syntax">infs</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">PARSING_DATA_FOR_SUBJ</span><span class="plain-syntax">(</span><span class="identifier-syntax">infs</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">PARSING_DATA_FOR_SUBJ</span><span class="plain-syntax">(</span><span class="identifier-syntax">infs</span><span class="plain-syntax">)-&gt;</span><span class="identifier-syntax">understand_as_this_subject</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">GRAMMAR</span><span class="plain-syntax">, </span><span class="string-syntax">"And parse_name content inherited from $j:\n"</span><span class="plain-syntax">, </span><span class="identifier-syntax">infs</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><a href="7-cg.html#SP9" class="function-link"><span class="function-syntax">RTCommandGrammars::cg_compile_lines</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">gprk</span><span class="plain-syntax">, </span><span class="identifier-syntax">PARSING_DATA_FOR_SUBJ</span><span class="plain-syntax">(</span><span class="identifier-syntax">infs</span><span class="plain-syntax">)-&gt;</span><span class="identifier-syntax">understand_as_this_subject</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="SP9" class="paragraph-anchor"></a><b>&#167;9. </b>All other grammars are compiled just as they are:
</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">RTCommandGrammars::cg_compile_lines</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">RTCommandGrammars::cg_compile_lines</span></span>:<br/><a href="7-cg.html#SP5">&#167;5</a>, <a href="7-cg.html#SP8">&#167;8</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">gpr_kit</span><span class="plain-syntax"> *</span><span class="identifier-syntax">gprk</span><span class="plain-syntax">, </span><span class="identifier-syntax">command_grammar</span><span class="plain-syntax"> *</span><span class="identifier-syntax">cg</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">CommandsIndex::list_assert_ownership</span><span class="plain-syntax">(</span><span class="identifier-syntax">cg</span><span class="plain-syntax">); </span><span class="comment-syntax"> Mark for later indexing</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">CommandGrammars::sort_command_grammar</span><span class="plain-syntax">(</span><span class="identifier-syntax">cg</span><span class="plain-syntax">); </span><span class="comment-syntax"> Phase III for the CGLs in the CG happens here</span>
<span class="plain-syntax"> </span><a href="7-cgl.html#SP3" class="function-link"><span class="function-syntax">RTCommandGrammarLines::sorted_line_list_compile</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">gprk</span><span class="plain-syntax">,</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">cg</span><span class="plain-syntax">-&gt;</span><span class="identifier-syntax">cg_is</span><span class="plain-syntax">, </span><span class="identifier-syntax">cg</span><span class="plain-syntax">, </span><span class="identifier-syntax">CommandGrammars::cg_is_genuinely_verbal</span><span class="plain-syntax">(</span><span class="identifier-syntax">cg</span><span class="plain-syntax">)); </span><span class="comment-syntax"> And Phase IV here</span>
<span class="plain-syntax">}</span>
<span class="reserved-syntax">void</span><span class="plain-syntax"> </span><span class="function-syntax">RTCommandGrammars::compile_iv</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">RTCommandGrammars::compile_iv</span></span>:<br/>Tokens Parsing Values - <a href="7-tpv.html#SP1">&#167;1</a>, <a href="7-tpv.html#SP1_1">&#167;1.1</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">gpr_kit</span><span class="plain-syntax"> *</span><span class="identifier-syntax">gprk</span><span class="plain-syntax">, </span><span class="identifier-syntax">command_grammar</span><span class="plain-syntax"> *</span><span class="identifier-syntax">cg</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">CGLines::list_length</span><span class="plain-syntax">(</span><span class="identifier-syntax">cg</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">LOGIF</span><span class="plain-syntax">(</span><span class="identifier-syntax">GRAMMAR</span><span class="plain-syntax">, </span><span class="string-syntax">"Compiling command grammar $G\n"</span><span class="plain-syntax">, </span><span class="identifier-syntax">cg</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">current_sentence</span><span class="plain-syntax"> = </span><span class="identifier-syntax">cg</span><span class="plain-syntax">-&gt;</span><span class="identifier-syntax">where_cg_created</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><a href="7-cgl.html#SP4" class="function-link"><span class="function-syntax">RTCommandGrammarLines::reset_labels</span></a><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">cg</span><span class="plain-syntax">-&gt;</span><span class="identifier-syntax">cg_is</span><span class="plain-syntax"> != </span><span class="identifier-syntax">CG_IS_VALUE</span><span class="plain-syntax">) </span><span class="identifier-syntax">internal_error</span><span class="plain-syntax">(</span><span class="string-syntax">"not iv"</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><a href="7-cg.html#SP9" class="function-link"><span class="function-syntax">RTCommandGrammars::cg_compile_lines</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">gprk</span><span class="plain-syntax">, </span><span class="identifier-syntax">cg</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">RTCommandGrammars::emit_determination_type</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">RTCommandGrammars::emit_determination_type</span></span>:<br/>Command Grammar Lines - <a href="7-cgl.html#SP5">&#167;5</a></span></button><span class="plain-syntax">(</span><span class="identifier-syntax">determination_type</span><span class="plain-syntax"> *</span><span class="identifier-syntax">gty</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">CompileValues::to_code_val</span><span class="plain-syntax">(</span><span class="identifier-syntax">gty</span><span class="plain-syntax">-&gt;</span><span class="identifier-syntax">term</span><span class="plain-syntax">[0].</span><span class="identifier-syntax">what</span><span class="plain-syntax">);</span>
<span class="plain-syntax">}</span>
</pre>
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