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Graham Nelson ec38eb8d2f Improvements to how extensions can create kinds
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<ul class="crumbs"><li><a href="../index.html">Home</a></li><li><a href="../inform7n.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>Kind GPRs</b></li></ul></div>
<p class="purpose">General parsing routine (GPR) functions to match values of non-object kinds in the command parser.</p>
<p class="commentary firstcommentary"><a id="SP1" class="paragraph-anchor"></a><b>&#167;1. </b>We provide special support for the token "[number]" here. This is a function
which picks up any irregular meanings added by the source text, say by "Understand
"lots" as 100."; it does not parse orthodox numbers like 4, -3, and such.
</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">KindGPRs::number</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">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="constant-syntax">DECIMAL_TOKEN_INNER_HL</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><span class="reserved-syntax">gpr_kit</span><span class="plain-syntax"> </span><span class="identifier-syntax">kit</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><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">kit</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">CommandGrammars::get_parsing_grammar</span><span class="plain-syntax">(</span><span class="identifier-syntax">K_number</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="named-paragraph-container code-font"><a href="7-kg.html#SP1_1" class="named-paragraph-link"><span class="named-paragraph">Return on any matches</span><span class="named-paragraph-number">1.1</span></a></span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="7-kg.html#SP1_2" class="named-paragraph-link"><span class="named-paragraph">Give up</span><span class="named-paragraph-number">1.2</span></a></span><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><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>
</pre>
<p class="commentary firstcommentary"><a id="SP1_1" class="paragraph-anchor"></a><b>&#167;1.1. </b><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Return on any matches</span><span class="named-paragraph-number">1.1</span></span><span class="comment-syntax"> =</span>
</p>
<pre class="displayed-code all-displayed-code code-font">
<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">kit</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><a href="2-ec.html#SP14" 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#SP13" 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">kit</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#SP8" 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="7-cg.html#SP14" class="function-link"><span class="function-syntax">RTCommandGrammars::compile_for_value_GPR</span></a><span class="plain-syntax">(&amp;</span><span class="identifier-syntax">kit</span><span class="plain-syntax">, </span><span class="identifier-syntax">cg</span><span class="plain-syntax">);</span>
</pre>
<ul class="endnotetexts"><li>This code is used in <a href="7-kg.html#SP1">&#167;1</a>, <a href="7-kg.html#SP2">&#167;2</a>, <a href="7-kg.html#SP3">&#167;3</a>.</li></ul>
<p class="commentary firstcommentary"><a id="SP1_2" class="paragraph-anchor"></a><b>&#167;1.2. </b><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Give up</span><span class="named-paragraph-number">1.2</span></span><span class="comment-syntax"> =</span>
</p>
<pre class="displayed-code all-displayed-code code-font">
<span class="plain-syntax"> </span><a href="2-ec.html#SP14" 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#SP8" 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>
</pre>
<ul class="endnotetexts"><li>This code is used in <a href="7-kg.html#SP1">&#167;1</a>, <a href="7-kg.html#SP2">&#167;2</a>, <a href="7-kg.html#SP3">&#167;3</a>.</li></ul>
<p class="commentary firstcommentary"><a id="SP2" class="paragraph-anchor"></a><b>&#167;2. </b>And similarly "[time]":
</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">KindGPRs::time</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">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="constant-syntax">TIME_TOKEN_INNER_HL</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><span class="reserved-syntax">gpr_kit</span><span class="plain-syntax"> </span><span class="identifier-syntax">kit</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><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">kit</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">kind</span><span class="plain-syntax"> *</span><span class="identifier-syntax">K</span><span class="plain-syntax"> = </span><span class="identifier-syntax">TimesOfDay::kind</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">K</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">CommandGrammars::get_parsing_grammar</span><span class="plain-syntax">(</span><span class="identifier-syntax">K</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="named-paragraph-container code-font"><a href="7-kg.html#SP1_1" class="named-paragraph-link"><span class="named-paragraph">Return on any matches</span><span class="named-paragraph-number">1.1</span></a></span><span class="plain-syntax">;</span>
<span class="plain-syntax"> }</span>
<span class="plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="7-kg.html#SP1_2" class="named-paragraph-link"><span class="named-paragraph">Give up</span><span class="named-paragraph-number">1.2</span></a></span><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><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>
</pre>
<p class="commentary firstcommentary"><a id="SP3" class="paragraph-anchor"></a><b>&#167;3. </b>And "[truth state]":
</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">KindGPRs::truth_state</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">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="constant-syntax">TRUTH_STATE_TOKEN_INNER_HL</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><span class="reserved-syntax">gpr_kit</span><span class="plain-syntax"> </span><span class="identifier-syntax">kit</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><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">kit</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">CommandGrammars::get_parsing_grammar</span><span class="plain-syntax">(</span><span class="identifier-syntax">K_truth_state</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="named-paragraph-container code-font"><a href="7-kg.html#SP1_1" class="named-paragraph-link"><span class="named-paragraph">Return on any matches</span><span class="named-paragraph-number">1.1</span></a></span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="7-kg.html#SP1_2" class="named-paragraph-link"><span class="named-paragraph">Give up</span><span class="named-paragraph-number">1.2</span></a></span><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><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>
</pre>
<p class="commentary firstcommentary"><a id="SP4" class="paragraph-anchor"></a><b>&#167;4. </b>More generally, we can make a GPR for values of any enumeration or quasinumerical
kind on request.
</p>
<p class="commentary">This does not work for other kinds, and in particular for kinds of object. Those
are handled elsewhere by <a href="7-nft.html" class="internal">Noun Filter Tokens</a>.
</p>
<p class="commentary">For a quasinumerical kind, we compile only a general GPR to match values of that
kind, trying each possible notation in turn until one matches:
</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">KindGPRs::quasinumerical_agent</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">KindGPRs::quasinumerical_agent</span></span>:<br/>Kind Constructors - <a href="5-kc.html#SP32_3_32">&#167;32.3.32</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">kind</span><span class="plain-syntax"> *</span><span class="identifier-syntax">K</span><span class="plain-syntax"> = </span><span class="identifier-syntax">RETRIEVE_POINTER_kind</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">Kinds::Behaviour::is_quasinumerical</span><span class="plain-syntax">(</span><span class="identifier-syntax">K</span><span class="plain-syntax">) == </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">) </span><span class="identifier-syntax">internal_error</span><span class="plain-syntax">(</span><span class="string-syntax">"miscall"</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="5-kc.html#SP21" class="function-link"><span class="function-syntax">RTKindConstructors::GPR_iname</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">K</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><span class="reserved-syntax">gpr_kit</span><span class="plain-syntax"> </span><span class="identifier-syntax">kit</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><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">kit</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">kit</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_LP_vars</span></a><span class="plain-syntax">(&amp;</span><span class="identifier-syntax">kit</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="7-kg.html#SP4_1" class="named-paragraph-link"><span class="named-paragraph">Save word number</span><span class="named-paragraph-number">4.1</span></a></span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="7-kg.html#SP4_1" class="named-paragraph-link"><span class="named-paragraph">Save word number</span><span class="named-paragraph-number">4.1</span></a></span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="7-kg.html#SP4_2" class="named-paragraph-link"><span class="named-paragraph">Match more elaborate grammar for this kind, if there is any</span><span class="named-paragraph-number">4.2</span></a></span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">literal_pattern</span><span class="plain-syntax"> *</span><span class="identifier-syntax">lp</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">LITERAL_FORMS_LOOP</span><span class="plain-syntax">(</span><span class="identifier-syntax">lp</span><span class="plain-syntax">, </span><span class="identifier-syntax">K</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><a href="2-ec.html#SP14" 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#SP13" 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">kit</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#SP14" class="function-link"><span class="function-syntax">EmitCode::call</span></a><span class="plain-syntax">(</span><a href="5-lp.html#SP2" class="function-link"><span class="function-syntax">RTLiteralPatterns::parse_fn_iname</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">lp</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#SP14" class="function-link"><span class="function-syntax">EmitCode::inv</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">IF_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#SP14" class="function-link"><span class="function-syntax">EmitCode::inv</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">EQ_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#SP8" 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">kit</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#SP8" 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_NUMBER_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#SP5" class="function-link"><span class="function-syntax">EmitCode::code</span></a><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#SP14" 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#SP8" 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">kit</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#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#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#SP3" class="function-link"><span class="function-syntax">EmitCode::up</span></a><span class="plain-syntax">();</span>
<span class="plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="7-kg.html#SP4_3" class="named-paragraph-link"><span class="named-paragraph">Reset word number</span><span class="named-paragraph-number">4.3</span></a></span><span class="plain-syntax">;</span>
<span class="plain-syntax"> }</span>
<span class="plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="7-kg.html#SP4_4" class="named-paragraph-link"><span class="named-paragraph">Completely fail</span><span class="named-paragraph-number">4.4</span></a></span><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>
</pre>
<p class="commentary firstcommentary"><a id="SP4_1" class="paragraph-anchor"></a><b>&#167;4.1. </b><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Save word number</span><span class="named-paragraph-number">4.1</span></span><span class="comment-syntax"> =</span>
</p>
<pre class="displayed-code all-displayed-code code-font">
<span class="plain-syntax"> </span><a href="2-ec.html#SP14" 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#SP13" 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">kit</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#SP8" 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>
</pre>
<ul class="endnotetexts"><li>This code is used in <a href="7-kg.html#SP4">&#167;4</a> (twice), <a href="7-kg.html#SP5_1">&#167;5.1</a>, <a href="7-kg.html#SP5_2">&#167;5.2</a>.</li></ul>
<p class="commentary firstcommentary"><a id="SP4_2" class="paragraph-anchor"></a><b>&#167;4.2. </b><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Match more elaborate grammar for this kind, if there is any</span><span class="named-paragraph-number">4.2</span></span><span class="comment-syntax"> =</span>
</p>
<pre class="displayed-code all-displayed-code code-font">
<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">CommandGrammars::get_parsing_grammar</span><span class="plain-syntax">(</span><span class="identifier-syntax">K</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="plain-syntax"> </span><a href="7-cg.html#SP14" class="function-link"><span class="function-syntax">RTCommandGrammars::compile_for_value_GPR</span></a><span class="plain-syntax">(&amp;</span><span class="identifier-syntax">kit</span><span class="plain-syntax">, </span><span class="identifier-syntax">cg</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="7-kg.html#SP4_3" class="named-paragraph-link"><span class="named-paragraph">Reset word number</span><span class="named-paragraph-number">4.3</span></a></span><span class="plain-syntax">;</span>
<span class="plain-syntax"> }</span>
</pre>
<ul class="endnotetexts"><li>This code is used in <a href="7-kg.html#SP4">&#167;4</a>, <a href="7-kg.html#SP5_1">&#167;5.1</a>, <a href="7-kg.html#SP5_2">&#167;5.2</a>.</li></ul>
<p class="commentary firstcommentary"><a id="SP4_3" class="paragraph-anchor"></a><b>&#167;4.3. </b><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Reset word number</span><span class="named-paragraph-number">4.3</span></span><span class="comment-syntax"> =</span>
</p>
<pre class="displayed-code all-displayed-code code-font">
<span class="plain-syntax"> </span><a href="2-ec.html#SP14" 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#SP13" 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#SP8" 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">kit</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#SP3" class="function-link"><span class="function-syntax">EmitCode::up</span></a><span class="plain-syntax">();</span>
</pre>
<ul class="endnotetexts"><li>This code is used in <a href="7-kg.html#SP4">&#167;4</a>, <a href="7-kg.html#SP4_2">&#167;4.2</a>, <a href="7-kg.html#SP5_1_1">&#167;5.1.1</a>.</li></ul>
<p class="commentary firstcommentary"><a id="SP4_4" class="paragraph-anchor"></a><b>&#167;4.4. </b><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Completely fail</span><span class="named-paragraph-number">4.4</span></span><span class="comment-syntax"> =</span>
</p>
<pre class="displayed-code all-displayed-code code-font">
<span class="plain-syntax"> </span><a href="2-ec.html#SP14" 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#SP8" 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>
</pre>
<ul class="endnotetexts"><li>This code is used in <a href="7-kg.html#SP4">&#167;4</a>, <a href="7-kg.html#SP5_1">&#167;5.1</a>, <a href="7-kg.html#SP5_2">&#167;5.2</a>, <a href="7-kg.html#SP5_1_1_3">&#167;5.1.1.3</a>.</li></ul>
<p class="commentary firstcommentary"><a id="SP5" class="paragraph-anchor"></a><b>&#167;5. </b>For an enumeration, we make two functions:
</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">KindGPRs::enumeration_agent</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">KindGPRs::enumeration_agent</span></span>:<br/>Kind Constructors - <a href="5-kc.html#SP32_3_31">&#167;32.3.31</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">kind</span><span class="plain-syntax"> *</span><span class="identifier-syntax">K</span><span class="plain-syntax"> = </span><span class="identifier-syntax">RETRIEVE_POINTER_kind</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">Kinds::Behaviour::is_an_enumeration</span><span class="plain-syntax">(</span><span class="identifier-syntax">K</span><span class="plain-syntax">) == </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">) </span><span class="identifier-syntax">internal_error</span><span class="plain-syntax">(</span><span class="string-syntax">"miscall"</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="7-kg.html#SP5_1" class="named-paragraph-link"><span class="named-paragraph">Compile the normal GPR</span><span class="named-paragraph-number">5.1</span></a></span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="7-kg.html#SP5_2" class="named-paragraph-link"><span class="named-paragraph">Compile the instance GPR</span><span class="named-paragraph-number">5.2</span></a></span><span class="plain-syntax">;</span>
<span class="plain-syntax">}</span>
</pre>
<p class="commentary firstcommentary"><a id="SP5_1" class="paragraph-anchor"></a><b>&#167;5.1. </b>The first is a straightforward GPR to match any instance name for the kind.
For example, for a kind called "colour", it might match any of "burnt umber",
"cerulean blue" or "sienna".
</p>
<p class="commentary"><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Compile the normal GPR</span><span class="named-paragraph-number">5.1</span></span><span class="comment-syntax"> =</span>
</p>
<pre class="displayed-code all-displayed-code code-font">
<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="5-kc.html#SP21" class="function-link"><span class="function-syntax">RTKindConstructors::GPR_iname</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">K</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><span class="reserved-syntax">gpr_kit</span><span class="plain-syntax"> </span><span class="identifier-syntax">kit</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><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">kit</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">kit</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="7-kg.html#SP4_1" class="named-paragraph-link"><span class="named-paragraph">Save word number</span><span class="named-paragraph-number">4.1</span></a></span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="7-kg.html#SP4_2" class="named-paragraph-link"><span class="named-paragraph">Match more elaborate grammar for this kind, if there is any</span><span class="named-paragraph-number">4.2</span></a></span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="7-kg.html#SP5_1_1" class="named-paragraph-link"><span class="named-paragraph">Match instances in decreasing name length order</span><span class="named-paragraph-number">5.1.1</span></a></span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="7-kg.html#SP4_4" class="named-paragraph-link"><span class="named-paragraph">Completely fail</span><span class="named-paragraph-number">4.4</span></a></span><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>
</pre>
<ul class="endnotetexts"><li>This code is used in <a href="7-kg.html#SP5">&#167;5</a>.</li></ul>
<p class="commentary firstcommentary"><a id="SP5_2" class="paragraph-anchor"></a><b>&#167;5.2. </b>The second is not quite a standard GPR, because it takes a call parameter,
<span class="extract"><span class="extract-syntax">instance</span></span>. The GPR matches only the name of that one instance; thus, if called
with <span class="extract"><span class="extract-syntax">I_burnt_umber</span></span>, it would match only "burnt umber".
</p>
<p class="commentary">Why is this needed? The answer is that whereas objects can have individual
<span class="extract"><span class="extract-syntax">parse_name</span></span> functions, allowing authors to customise the recognised names for
them, instances of non-object enumerations do not have a <span class="extract"><span class="extract-syntax">parse_name</span></span>. So this
is the only way to allow, say, "Understand "sooty" as burnt umber." to work &mdash;
the grammar holding "sooty" comes out only in the following function.
</p>
<p class="commentary"><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Compile the instance GPR</span><span class="named-paragraph-number">5.2</span></span><span class="comment-syntax"> =</span>
</p>
<pre class="displayed-code all-displayed-code code-font">
<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="5-kc.html#SP22" class="function-link"><span class="function-syntax">RTKindConstructors::instance_GPR_iname</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">K</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><span class="reserved-syntax">gpr_kit</span><span class="plain-syntax"> </span><span class="identifier-syntax">kit</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><a href="2-gpr.html#SP4" class="function-link"><span class="function-syntax">GPRs::add_instance_var</span></a><span class="plain-syntax">(&amp;</span><span class="identifier-syntax">kit</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">kit</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">kit</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">kit</span><span class="plain-syntax">.</span><span class="element-syntax">GV_IS_VALUE_instance_mode</span><span class="plain-syntax"> = </span><span class="identifier-syntax">TRUE</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="7-kg.html#SP4_1" class="named-paragraph-link"><span class="named-paragraph">Save word number</span><span class="named-paragraph-number">4.1</span></a></span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="7-kg.html#SP4_2" class="named-paragraph-link"><span class="named-paragraph">Match more elaborate grammar for this kind, if there is any</span><span class="named-paragraph-number">4.2</span></a></span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="7-kg.html#SP5_1_1" class="named-paragraph-link"><span class="named-paragraph">Match instances in decreasing name length order</span><span class="named-paragraph-number">5.1.1</span></a></span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="7-kg.html#SP4_4" class="named-paragraph-link"><span class="named-paragraph">Completely fail</span><span class="named-paragraph-number">4.4</span></a></span><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>
</pre>
<ul class="endnotetexts"><li>This code is used in <a href="7-kg.html#SP5">&#167;5</a>.</li></ul>
<p class="commentary firstcommentary"><a id="SP5_1_1" class="paragraph-anchor"></a><b>&#167;5.1.1. </b>We try longer names first so that if the enumeration contains both "yellow"
and "yellow chromium" then we match YELLOW CHROMIUM against the longer option.
</p>
<p class="commentary"><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Match instances in decreasing name length order</span><span class="named-paragraph-number">5.1.1</span></span><span class="comment-syntax"> =</span>
</p>
<pre class="displayed-code all-displayed-code code-font">
<span class="plain-syntax"> </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">next_label</span><span class="plain-syntax"> = </span><span class="constant-syntax">1</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">longest</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">instance</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">LOOP_OVER_INSTANCES</span><span class="plain-syntax">(</span><span class="identifier-syntax">I</span><span class="plain-syntax">, </span><span class="identifier-syntax">K</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">wording</span><span class="plain-syntax"> </span><span class="identifier-syntax">NW</span><span class="plain-syntax"> = </span><span class="identifier-syntax">Instances::get_name_in_play</span><span class="plain-syntax">(</span><span class="identifier-syntax">I</span><span class="plain-syntax">, </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">L</span><span class="plain-syntax"> = </span><span class="identifier-syntax">Wordings::length</span><span class="plain-syntax">(</span><span class="identifier-syntax">NW</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">L</span><span class="plain-syntax"> &gt; </span><span class="identifier-syntax">longest</span><span class="plain-syntax">) </span><span class="identifier-syntax">longest</span><span class="plain-syntax"> = </span><span class="identifier-syntax">L</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> }</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">for</span><span class="plain-syntax"> (</span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">len</span><span class="plain-syntax"> = </span><span class="identifier-syntax">longest</span><span class="plain-syntax">; </span><span class="identifier-syntax">len</span><span class="plain-syntax"> &gt;= </span><span class="constant-syntax">1</span><span class="plain-syntax">; </span><span class="identifier-syntax">len</span><span class="plain-syntax">--) {</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">LOOP_OVER_INSTANCES</span><span class="plain-syntax">(</span><span class="identifier-syntax">I</span><span class="plain-syntax">, </span><span class="identifier-syntax">K</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">wording</span><span class="plain-syntax"> </span><span class="identifier-syntax">NW</span><span class="plain-syntax"> = </span><span class="identifier-syntax">Instances::get_name_in_play</span><span class="plain-syntax">(</span><span class="identifier-syntax">I</span><span class="plain-syntax">, </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">Wordings::length</span><span class="plain-syntax">(</span><span class="identifier-syntax">NW</span><span class="plain-syntax">) == </span><span class="identifier-syntax">len</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">kit</span><span class="plain-syntax">.</span><span class="element-syntax">GV_IS_VALUE_instance_mode</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="7-kg.html#SP5_1_1_2" class="named-paragraph-link"><span class="named-paragraph">Test if this is the right instance</span><span class="named-paragraph-number">5.1.1.2</span></a></span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="7-kg.html#SP5_1_1_1" class="named-paragraph-link"><span class="named-paragraph">Match the instance I</span><span class="named-paragraph-number">5.1.1.1</span></a></span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="7-kg.html#SP5_1_1_3" class="named-paragraph-link"><span class="named-paragraph">Close test if this is the right instance</span><span class="named-paragraph-number">5.1.1.3</span></a></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="named-paragraph-container code-font"><a href="7-kg.html#SP5_1_1_1" class="named-paragraph-link"><span class="named-paragraph">Match the instance I</span><span class="named-paragraph-number">5.1.1.1</span></a></span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="7-kg.html#SP4_3" class="named-paragraph-link"><span class="named-paragraph">Reset word number</span><span class="named-paragraph-number">4.3</span></a></span><span class="plain-syntax">;</span>
<span class="plain-syntax"> }</span>
<span class="plain-syntax"> }</span>
<span class="plain-syntax"> }</span>
<span class="plain-syntax"> }</span>
</pre>
<ul class="endnotetexts"><li>This code is used in <a href="7-kg.html#SP5_1">&#167;5.1</a>, <a href="7-kg.html#SP5_2">&#167;5.2</a>.</li></ul>
<p class="commentary firstcommentary"><a id="SP5_1_1_1" class="paragraph-anchor"></a><b>&#167;5.1.1.1. </b><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Match the instance I</span><span class="named-paragraph-number">5.1.1.1</span></span><span class="comment-syntax"> =</span>
</p>
<pre class="displayed-code all-displayed-code code-font">
<span class="plain-syntax"> </span><span class="identifier-syntax">TEMPORARY_TEXT</span><span class="plain-syntax">(</span><span class="identifier-syntax">L</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">L</span><span class="plain-syntax">, </span><span class="string-syntax">".Failed_%d"</span><span class="plain-syntax">, </span><span class="identifier-syntax">next_label</span><span class="plain-syntax">++);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">inter_symbol</span><span class="plain-syntax"> *</span><span class="identifier-syntax">failure_label</span><span class="plain-syntax"> = </span><a href="2-ec.html#SP17" class="function-link"><span class="function-syntax">EmitCode::reserve_label</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">L</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">L</span><span class="plain-syntax">)</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">LOOP_THROUGH_WORDING</span><span class="plain-syntax">(</span><span class="identifier-syntax">k</span><span class="plain-syntax">, </span><span class="identifier-syntax">NW</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><a href="2-ec.html#SP14" class="function-link"><span class="function-syntax">EmitCode::inv</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">IF_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#SP14" class="function-link"><span class="function-syntax">EmitCode::inv</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">NE_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#SP14" class="function-link"><span class="function-syntax">EmitCode::call</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="identifier-syntax">NEXTWORDSTOPPED_HL</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">W</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">W</span><span class="plain-syntax">, </span><span class="string-syntax">"%N"</span><span class="plain-syntax">, </span><span class="identifier-syntax">k</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><a href="2-ec.html#SP8" class="function-link"><span class="function-syntax">EmitCode::val_dword</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">W</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">W</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#SP5" class="function-link"><span class="function-syntax">EmitCode::code</span></a><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#SP14" class="function-link"><span class="function-syntax">EmitCode::inv</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">JUMP_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#SP17" class="function-link"><span class="function-syntax">EmitCode::lab</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">failure_label</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#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#SP3" class="function-link"><span class="function-syntax">EmitCode::up</span></a><span class="plain-syntax">();</span>
<span class="plain-syntax"> }</span>
<span class="plain-syntax"> </span><a href="2-ec.html#SP14" 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#SP13" 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">PARSED_NUMBER_HL</span><span class="plain-syntax">));</span>
<span class="plain-syntax"> </span><a href="2-ec.html#SP8" 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="5-ins.html#SP1" class="function-link"><span class="function-syntax">RTInstances::value_iname</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">I</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#SP14" 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#SP8" 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_NUMBER_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#SP17" class="function-link"><span class="function-syntax">EmitCode::place_label</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">failure_label</span><span class="plain-syntax">);</span>
</pre>
<ul class="endnotetexts"><li>This code is used in <a href="7-kg.html#SP5_1_1">&#167;5.1.1</a> (twice).</li></ul>
<p class="commentary firstcommentary"><a id="SP5_1_1_2" class="paragraph-anchor"></a><b>&#167;5.1.1.2. </b><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Test if this is the right instance</span><span class="named-paragraph-number">5.1.1.2</span></span><span class="comment-syntax"> =</span>
</p>
<pre class="displayed-code all-displayed-code code-font">
<span class="plain-syntax"> </span><a href="2-ec.html#SP14" class="function-link"><span class="function-syntax">EmitCode::inv</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">IF_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#SP14" class="function-link"><span class="function-syntax">EmitCode::inv</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">EQ_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#SP8" 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">kit</span><span class="plain-syntax">.</span><span class="element-syntax">instance_s</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><a href="2-ec.html#SP8" 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="5-ins.html#SP1" class="function-link"><span class="function-syntax">RTInstances::value_iname</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">I</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#SP5" class="function-link"><span class="function-syntax">EmitCode::code</span></a><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>
</pre>
<ul class="endnotetexts"><li>This code is used in <a href="7-kg.html#SP5_1_1">&#167;5.1.1</a>.</li></ul>
<p class="commentary firstcommentary"><a id="SP5_1_1_3" class="paragraph-anchor"></a><b>&#167;5.1.1.3. </b><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Close test if this is the right instance</span><span class="named-paragraph-number">5.1.1.3</span></span><span class="comment-syntax"> =</span>
</p>
<pre class="displayed-code all-displayed-code code-font">
<span class="plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="7-kg.html#SP4_4" class="named-paragraph-link"><span class="named-paragraph">Completely fail</span><span class="named-paragraph-number">4.4</span></a></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#SP3" class="function-link"><span class="function-syntax">EmitCode::up</span></a><span class="plain-syntax">();</span>
</pre>
<ul class="endnotetexts"><li>This code is used in <a href="7-kg.html#SP5_1_1">&#167;5.1.1</a>.</li></ul>
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