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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
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<!--Weave of '5/nft' generated by 7-->
<ul class="crumbs"><li><a href="../webs.html">Source</a></li><li><a href="../compiler.html">Compiler Modules</a></li><li><a href="index.html">if</a></li><li><a href="index.html#5">Chapter 5: Command Grammar</a></li><li><b>Noun Filter Tokens</b></li></ul><p class="purpose">Filters are used to require nouns to have specific kinds or attributes, or to have specific scoping rules: they correspond to Inform 6's |noun=Routine| and |scope=Routine| tokens. Though these are quite different concepts in I6, their common handling seems natural in I7.</p>
<ul class="toc"><li><a href="#SP1">&#167;1. Definitions</a></li><li><a href="#SP3">&#167;3. Access via ID</a></li><li><a href="#SP4">&#167;4. Compiling everything</a></li></ul><hr class="tocbar">
<p class="inwebparagraph"><a id="SP1"></a><b>&#167;1. Definitions. </b></p>
<pre class="display">
<span class="reserved">typedef</span><span class="plain"> </span><span class="reserved">struct</span><span class="plain"> </span><span class="reserved">noun_filter_token</span><span class="plain"> {</span>
<span class="reserved">struct</span><span class="plain"> </span><span class="identifier">parse_node</span><span class="plain"> *</span><span class="identifier">the_filter</span><span class="plain">;</span>
<span class="reserved">struct</span><span class="plain"> </span><span class="identifier">parse_node</span><span class="plain"> *</span><span class="identifier">nft_created_at</span><span class="plain">;</span>
<span class="reserved">int</span><span class="plain"> </span><span class="identifier">global_scope_flag</span><span class="plain">;</span>
<span class="reserved">int</span><span class="plain"> </span><span class="identifier">any_things_flag</span><span class="plain">;</span>
<span class="reserved">int</span><span class="plain"> </span><span class="identifier">parse_using_gpr</span><span class="plain">;</span>
<span class="reserved">int</span><span class="plain"> </span><span class="identifier">nft_compiled</span><span class="plain">;</span>
<span class="reserved">struct</span><span class="plain"> </span><span class="identifier">inter_name</span><span class="plain"> *</span><span class="identifier">nft_iname</span><span class="plain">;</span>
<span class="identifier">MEMORY_MANAGEMENT</span>
<span class="plain">} </span><span class="reserved">noun_filter_token</span><span class="plain">;</span>
</pre>
<p class="inwebparagraph"></p>
<p class="endnote">The structure noun_filter_token is private to this section.</p>
<p class="inwebparagraph"><a id="SP2"></a><b>&#167;2. </b>There are only three things we can do with these: create them, compile
their names (used as I6 tokens), and compile their routines.
</p>
<pre class="display">
<span class="reserved">noun_filter_token</span><span class="plain"> *</span><span class="functiontext">PL::Parsing::Tokens::Filters::nft_new</span><span class="plain">(</span><span class="identifier">parse_node</span><span class="plain"> *</span><span class="identifier">spec</span><span class="plain">, </span><span class="reserved">int</span><span class="plain"> </span><span class="identifier">global_scope</span><span class="plain">, </span><span class="reserved">int</span><span class="plain"> </span><span class="identifier">any_things</span><span class="plain">) {</span>
<span class="identifier">pcalc_prop</span><span class="plain"> *</span><span class="identifier">prop</span><span class="plain"> = </span><span class="identifier">Specifications::to_proposition</span><span class="plain">(</span><span class="identifier">spec</span><span class="plain">);</span>
<span class="reserved">if</span><span class="plain"> ((</span><span class="identifier">prop</span><span class="plain">) &amp;&amp; (</span><span class="identifier">Calculus::Variables::number_free</span><span class="plain">(</span><span class="identifier">prop</span><span class="plain">) != 1)) {</span>
<span class="identifier">LOG</span><span class="plain">(</span><span class="string">"So $P and $D\</span><span class="plain">n</span><span class="string">"</span><span class="plain">, </span><span class="identifier">spec</span><span class="plain">, </span><span class="identifier">prop</span><span class="plain">);</span>
<span class="identifier">Problems::Issue::sentence_problem</span><span class="plain">(</span><span class="identifier">Task::syntax_tree</span><span class="plain">(), </span><span class="identifier">_p_</span><span class="plain">(</span><span class="identifier">PM_FilterQuantified</span><span class="plain">),</span>
<span class="string">"the [any ...] doesn't clearly give a description in the '...' part"</span><span class="plain">,</span>
<span class="string">"where I was expecting something like '[any vehicle]'."</span><span class="plain">);</span>
<span class="identifier">spec</span><span class="plain"> = </span><span class="identifier">Specifications::from_kind</span><span class="plain">(</span><span class="identifier">K_object</span><span class="plain">);</span>
<span class="plain">}</span>
<span class="reserved">noun_filter_token</span><span class="plain"> *</span><span class="identifier">nft</span><span class="plain"> = </span><span class="identifier">CREATE</span><span class="plain">(</span><span class="reserved">noun_filter_token</span><span class="plain">);</span>
<span class="identifier">nft</span><span class="plain">-</span><span class="element">&gt;the_filter</span><span class="plain"> = </span><span class="identifier">spec</span><span class="plain">;</span>
<span class="identifier">nft</span><span class="plain">-</span><span class="element">&gt;global_scope_flag</span><span class="plain"> = </span><span class="identifier">global_scope</span><span class="plain">;</span>
<span class="identifier">nft</span><span class="plain">-</span><span class="element">&gt;any_things_flag</span><span class="plain"> = </span><span class="identifier">any_things</span><span class="plain">;</span>
<span class="identifier">nft</span><span class="plain">-</span><span class="element">&gt;nft_created_at</span><span class="plain"> = </span><span class="identifier">current_sentence</span><span class="plain">;</span>
<span class="identifier">nft</span><span class="plain">-</span><span class="element">&gt;parse_using_gpr</span><span class="plain"> = </span><span class="identifier">FALSE</span><span class="plain">;</span>
<span class="identifier">nft</span><span class="plain">-</span><span class="element">&gt;nft_compiled</span><span class="plain"> = </span><span class="identifier">FALSE</span><span class="plain">;</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">global_scope</span><span class="plain">) {</span>
<span class="identifier">package_request</span><span class="plain"> *</span><span class="identifier">PR</span><span class="plain"> = </span><span class="identifier">Hierarchy::local_package</span><span class="plain">(</span><span class="identifier">SCOPE_FILTERS_HAP</span><span class="plain">);</span>
<span class="identifier">nft</span><span class="plain">-</span><span class="element">&gt;nft_iname</span><span class="plain"> = </span><span class="identifier">Hierarchy::make_iname_in</span><span class="plain">(</span><span class="identifier">SCOPE_FILTER_FN_HL</span><span class="plain">, </span><span class="identifier">PR</span><span class="plain">);</span>
<span class="plain">} </span><span class="reserved">else</span><span class="plain"> {</span>
<span class="identifier">package_request</span><span class="plain"> *</span><span class="identifier">PR</span><span class="plain"> = </span><span class="identifier">Hierarchy::local_package</span><span class="plain">(</span><span class="identifier">NOUN_FILTERS_HAP</span><span class="plain">);</span>
<span class="identifier">nft</span><span class="plain">-</span><span class="element">&gt;nft_iname</span><span class="plain"> = </span><span class="identifier">Hierarchy::make_iname_in</span><span class="plain">(</span><span class="identifier">NOUN_FILTER_FN_HL</span><span class="plain">, </span><span class="identifier">PR</span><span class="plain">);</span>
<span class="plain">}</span>
<span class="reserved">return</span><span class="plain"> </span><span class="identifier">nft</span><span class="plain">;</span>
<span class="plain">}</span>
<span class="identifier">inter_name</span><span class="plain"> *</span><span class="functiontext">PL::Parsing::Tokens::Filters::nft_compile_routine_iname</span><span class="plain">(</span><span class="reserved">noun_filter_token</span><span class="plain"> *</span><span class="identifier">nft</span><span class="plain">) {</span>
<span class="reserved">return</span><span class="plain"> </span><span class="identifier">nft</span><span class="plain">-</span><span class="element">&gt;nft_iname</span><span class="plain">;</span>
<span class="plain">}</span>
<span class="reserved">void</span><span class="plain"> </span><span class="functiontext">PL::Parsing::Tokens::Filters::nft_compile_routine</span><span class="plain">(</span><span class="reserved">noun_filter_token</span><span class="plain"> *</span><span class="identifier">nft</span><span class="plain">) {</span>
<span class="identifier">parse_node</span><span class="plain"> *</span><span class="identifier">noun_var</span><span class="plain"> = </span><span class="identifier">Lvalues::new_actual_NONLOCAL_VARIABLE</span><span class="plain">(</span><span class="identifier">I6_noun_VAR</span><span class="plain">);</span>
<span class="identifier">kind</span><span class="plain"> *</span><span class="identifier">R</span><span class="plain"> = </span><span class="identifier">Specifications::to_kind</span><span class="plain">(</span><span class="identifier">nft</span><span class="plain">-</span><span class="element">&gt;the_filter</span><span class="plain">);</span>
<span class="identifier">kind</span><span class="plain"> *</span><span class="identifier">K</span><span class="plain"> = </span><span class="identifier">NonlocalVariables::kind</span><span class="plain">(</span><span class="identifier">I6_noun_VAR</span><span class="plain">);</span>
<span class="identifier">NonlocalVariables::set_kind</span><span class="plain">(</span><span class="identifier">I6_noun_VAR</span><span class="plain">, </span><span class="identifier">R</span><span class="plain">);</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">Kinds::Compare::le</span><span class="plain">(</span><span class="identifier">R</span><span class="plain">, </span><span class="identifier">K_object</span><span class="plain">) == </span><span class="identifier">FALSE</span><span class="plain">) </span><span class="identifier">nft</span><span class="plain">-</span><span class="element">&gt;parse_using_gpr</span><span class="plain"> = </span><span class="identifier">TRUE</span><span class="plain">;</span>
<span class="identifier">packaging_state</span><span class="plain"> </span><span class="identifier">save</span><span class="plain"> = </span><span class="identifier">Routines::begin</span><span class="plain">(</span><span class="identifier">nft</span><span class="plain">-</span><span class="element">&gt;nft_iname</span><span class="plain">);</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">nft</span><span class="plain">-</span><span class="element">&gt;parse_using_gpr</span><span class="plain">) {</span>
<span class="identifier">inter_symbol</span><span class="plain"> *</span><span class="identifier">v_s</span><span class="plain"> = </span><span class="identifier">LocalVariables::add_internal_local_c_as_symbol</span><span class="plain">(</span><span class="identifier">I</span><span class="string">"v"</span><span class="plain">, </span><span class="string">"value parsed"</span><span class="plain">);</span>
<span class="identifier">inter_symbol</span><span class="plain"> *</span><span class="identifier">n_s</span><span class="plain"> = </span><span class="identifier">LocalVariables::add_internal_local_c_as_symbol</span><span class="plain">(</span><span class="identifier">I</span><span class="string">"n"</span><span class="plain">, </span><span class="string">"saved value of noun"</span><span class="plain">);</span>
<span class="identifier">Produce::inv_primitive</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">(), </span><span class="identifier">STORE_BIP</span><span class="plain">);</span>
<span class="identifier">Produce::down</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">());</span>
<span class="identifier">Produce::ref_symbol</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">(), </span><span class="identifier">K_value</span><span class="plain">, </span><span class="identifier">v_s</span><span class="plain">);</span>
<span class="identifier">inter_name</span><span class="plain"> *</span><span class="identifier">gpr_to_ask</span><span class="plain"> = </span><span class="identifier">Kinds::Behaviour::get_explicit_I6_GPR_iname</span><span class="plain">(</span><span class="identifier">R</span><span class="plain">);</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">gpr_to_ask</span><span class="plain"> == </span><span class="identifier">NULL</span><span class="plain">) </span><span class="identifier">gpr_to_ask</span><span class="plain"> = </span><span class="identifier">Kinds::RunTime::get_kind_GPR_iname</span><span class="plain">(</span><span class="identifier">R</span><span class="plain">);</span>
<span class="identifier">Produce::inv_call_iname</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">(), </span><span class="identifier">gpr_to_ask</span><span class="plain">);</span>
<span class="identifier">Produce::up</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">());</span>
<span class="identifier">Produce::inv_primitive</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">(), </span><span class="identifier">IF_BIP</span><span class="plain">);</span>
<span class="identifier">Produce::down</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">());</span>
<span class="identifier">Produce::inv_primitive</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">(), </span><span class="identifier">EQ_BIP</span><span class="plain">);</span>
<span class="identifier">Produce::down</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">());</span>
<span class="identifier">Produce::val_symbol</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">(), </span><span class="identifier">K_value</span><span class="plain">, </span><span class="identifier">v_s</span><span class="plain">);</span>
<span class="identifier">Produce::val_iname</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">(), </span><span class="identifier">K_object</span><span class="plain">, </span><span class="identifier">Hierarchy::find</span><span class="plain">(</span><span class="identifier">GPR_NUMBER_HL</span><span class="plain">));</span>
<span class="identifier">Produce::up</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">());</span>
<span class="identifier">Produce::code</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">());</span>
<span class="identifier">Produce::down</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">());</span>
<span class="identifier">Produce::inv_primitive</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">(), </span><span class="identifier">STORE_BIP</span><span class="plain">);</span>
<span class="identifier">Produce::down</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">());</span>
<span class="identifier">Produce::ref_symbol</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">(), </span><span class="identifier">K_value</span><span class="plain">, </span><span class="identifier">n_s</span><span class="plain">);</span>
<span class="identifier">Produce::val_iname</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">(), </span><span class="identifier">K_object</span><span class="plain">, </span><span class="identifier">Hierarchy::find</span><span class="plain">(</span><span class="identifier">NOUN_HL</span><span class="plain">));</span>
<span class="identifier">Produce::up</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">());</span>
<span class="identifier">Produce::inv_primitive</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">(), </span><span class="identifier">STORE_BIP</span><span class="plain">);</span>
<span class="identifier">Produce::down</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">());</span>
<span class="identifier">Produce::ref_iname</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">(), </span><span class="identifier">K_object</span><span class="plain">, </span><span class="identifier">Hierarchy::find</span><span class="plain">(</span><span class="identifier">NOUN_HL</span><span class="plain">));</span>
<span class="identifier">Produce::val_iname</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">(), </span><span class="identifier">K_object</span><span class="plain">, </span><span class="identifier">Hierarchy::find</span><span class="plain">(</span><span class="identifier">PARSED_NUMBER_HL</span><span class="plain">));</span>
<span class="identifier">Produce::up</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">());</span>
<span class="identifier">Produce::inv_primitive</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">(), </span><span class="identifier">IF_BIP</span><span class="plain">);</span>
<span class="identifier">Produce::down</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">());</span>
<span class="identifier">Produce::inv_primitive</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">(), </span><span class="identifier">NOT_BIP</span><span class="plain">);</span>
<span class="identifier">Produce::down</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">());</span>
<span class="identifier">Calculus::Deferrals::emit_test_if_var_matches_description</span><span class="plain">(</span><span class="identifier">noun_var</span><span class="plain">, </span><span class="identifier">nft</span><span class="plain">-</span><span class="element">&gt;the_filter</span><span class="plain">);</span>
<span class="identifier">Produce::up</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">());</span>
<span class="identifier">Produce::code</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">());</span>
<span class="identifier">Produce::down</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">());</span>
<span class="identifier">Produce::inv_primitive</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">(), </span><span class="identifier">STORE_BIP</span><span class="plain">);</span>
<span class="identifier">Produce::down</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">());</span>
<span class="identifier">Produce::ref_symbol</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">(), </span><span class="identifier">K_value</span><span class="plain">, </span><span class="identifier">v_s</span><span class="plain">);</span>
<span class="identifier">Produce::val_iname</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">(), </span><span class="identifier">K_object</span><span class="plain">, </span><span class="identifier">Hierarchy::find</span><span class="plain">(</span><span class="identifier">GPR_FAIL_HL</span><span class="plain">));</span>
<span class="identifier">Produce::up</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">());</span>
<span class="identifier">Produce::up</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">());</span>
<span class="identifier">Produce::up</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">());</span>
<span class="identifier">Produce::inv_primitive</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">(), </span><span class="identifier">STORE_BIP</span><span class="plain">);</span>
<span class="identifier">Produce::down</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">());</span>
<span class="identifier">Produce::ref_iname</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">(), </span><span class="identifier">K_object</span><span class="plain">, </span><span class="identifier">Hierarchy::find</span><span class="plain">(</span><span class="identifier">NOUN_HL</span><span class="plain">));</span>
<span class="identifier">Produce::val_symbol</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">(), </span><span class="identifier">K_value</span><span class="plain">, </span><span class="identifier">n_s</span><span class="plain">);</span>
<span class="identifier">Produce::up</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">());</span>
<span class="identifier">Produce::up</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">());</span>
<span class="identifier">Produce::up</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">());</span>
<span class="identifier">Produce::inv_primitive</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">(), </span><span class="identifier">RETURN_BIP</span><span class="plain">);</span>
<span class="identifier">Produce::down</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">());</span>
<span class="identifier">Produce::val_symbol</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">(), </span><span class="identifier">K_value</span><span class="plain">, </span><span class="identifier">v_s</span><span class="plain">);</span>
<span class="identifier">Produce::up</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">());</span>
<span class="plain">} </span><span class="reserved">else</span><span class="plain"> </span><span class="reserved">if</span><span class="plain"> (</span><span class="identifier">nft</span><span class="plain">-</span><span class="element">&gt;global_scope_flag</span><span class="plain">) {</span>
<span class="identifier">inter_symbol</span><span class="plain"> *</span><span class="identifier">obj_s</span><span class="plain"> = </span><span class="identifier">LocalVariables::add_internal_local_c_as_symbol</span><span class="plain">(</span><span class="identifier">I</span><span class="string">"obj"</span><span class="plain">, </span><span class="string">"object loop variable"</span><span class="plain">);</span>
<span class="identifier">inter_symbol</span><span class="plain"> *</span><span class="identifier">o2_s</span><span class="plain"> = </span><span class="identifier">LocalVariables::add_internal_local_c_as_symbol</span><span class="plain">(</span><span class="identifier">I</span><span class="string">"o2"</span><span class="plain">, </span><span class="string">"saved value of noun"</span><span class="plain">);</span>
<span class="identifier">Produce::inv_primitive</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">(), </span><span class="identifier">SWITCH_BIP</span><span class="plain">);</span>
<span class="identifier">Produce::down</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">());</span>
<span class="identifier">Produce::val_iname</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">(), </span><span class="identifier">K_object</span><span class="plain">, </span><span class="identifier">Hierarchy::find</span><span class="plain">(</span><span class="identifier">SCOPE_STAGE_HL</span><span class="plain">));</span>
<span class="identifier">Produce::code</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">());</span>
<span class="identifier">Produce::down</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">());</span>
<span class="identifier">Produce::inv_primitive</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">(), </span><span class="identifier">CASE_BIP</span><span class="plain">);</span>
<span class="identifier">Produce::down</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">());</span>
<span class="identifier">Produce::val</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">(), </span><span class="identifier">K_number</span><span class="plain">, </span><span class="identifier">LITERAL_IVAL</span><span class="plain">, 1);</span>
<span class="identifier">Produce::code</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">());</span>
<span class="identifier">Produce::down</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">());</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">nft</span><span class="plain">-</span><span class="element">&gt;any_things_flag</span><span class="plain">) </span><span class="identifier">Produce::rtrue</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">());</span>
<span class="reserved">else</span><span class="plain"> </span><span class="identifier">Produce::rfalse</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">());</span>
<span class="identifier">Produce::up</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">());</span>
<span class="identifier">Produce::up</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">());</span>
<span class="identifier">Produce::inv_primitive</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">(), </span><span class="identifier">CASE_BIP</span><span class="plain">);</span>
<span class="identifier">Produce::down</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">());</span>
<span class="identifier">Produce::val</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">(), </span><span class="identifier">K_number</span><span class="plain">, </span><span class="identifier">LITERAL_IVAL</span><span class="plain">, 2);</span>
<span class="identifier">Produce::code</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">());</span>
<span class="identifier">Produce::down</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">());</span>
<span class="identifier">Produce::inv_primitive</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">(), </span><span class="identifier">STORE_BIP</span><span class="plain">);</span>
<span class="identifier">Produce::down</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">());</span>
<span class="identifier">Produce::ref_symbol</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">(), </span><span class="identifier">K_value</span><span class="plain">, </span><span class="identifier">obj_s</span><span class="plain">);</span>
<span class="identifier">Produce::val_iname</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">(), </span><span class="identifier">K_object</span><span class="plain">, </span><span class="identifier">Hierarchy::find</span><span class="plain">(</span><span class="identifier">NOUN_HL</span><span class="plain">));</span>
<span class="identifier">Produce::up</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">());</span>
<span class="identifier">Produce::inv_primitive</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">(), </span><span class="identifier">OBJECTLOOP_BIP</span><span class="plain">);</span>
<span class="identifier">Produce::down</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">());</span>
<span class="identifier">Produce::ref_iname</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">(), </span><span class="identifier">K_object</span><span class="plain">, </span><span class="identifier">Hierarchy::find</span><span class="plain">(</span><span class="identifier">NOUN_HL</span><span class="plain">));</span>
<span class="identifier">Produce::val_iname</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">(), </span><span class="identifier">K_value</span><span class="plain">, </span><span class="identifier">Kinds::RunTime::I6_classname</span><span class="plain">(</span><span class="identifier">K_object</span><span class="plain">));</span>
<span class="identifier">Calculus::Deferrals::emit_test_if_var_matches_description</span><span class="plain">(</span><span class="identifier">noun_var</span><span class="plain">, </span><span class="identifier">nft</span><span class="plain">-</span><span class="element">&gt;the_filter</span><span class="plain">);</span>
<span class="identifier">Produce::code</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">());</span>
<span class="identifier">Produce::down</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">());</span>
<span class="identifier">Produce::inv_primitive</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">(), </span><span class="identifier">STORE_BIP</span><span class="plain">);</span>
<span class="identifier">Produce::down</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">());</span>
<span class="identifier">Produce::ref_symbol</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">(), </span><span class="identifier">K_value</span><span class="plain">, </span><span class="identifier">o2_s</span><span class="plain">);</span>
<span class="identifier">Produce::val_iname</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">(), </span><span class="identifier">K_object</span><span class="plain">, </span><span class="identifier">Hierarchy::find</span><span class="plain">(</span><span class="identifier">NOUN_HL</span><span class="plain">));</span>
<span class="identifier">Produce::up</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">());</span>
<span class="identifier">Produce::inv_primitive</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">(), </span><span class="identifier">STORE_BIP</span><span class="plain">);</span>
<span class="identifier">Produce::down</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">());</span>
<span class="identifier">Produce::ref_iname</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">(), </span><span class="identifier">K_object</span><span class="plain">, </span><span class="identifier">Hierarchy::find</span><span class="plain">(</span><span class="identifier">NOUN_HL</span><span class="plain">));</span>
<span class="identifier">Produce::val_symbol</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">(), </span><span class="identifier">K_value</span><span class="plain">, </span><span class="identifier">obj_s</span><span class="plain">);</span>
<span class="identifier">Produce::up</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">());</span>
<span class="identifier">Produce::inv_primitive</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">(), </span><span class="identifier">STORE_BIP</span><span class="plain">);</span>
<span class="identifier">Produce::down</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">());</span>
<span class="identifier">Produce::ref_iname</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">(), </span><span class="identifier">K_object</span><span class="plain">, </span><span class="identifier">Hierarchy::find</span><span class="plain">(</span><span class="identifier">SUPPRESS_SCOPE_LOOPS_HL</span><span class="plain">));</span>
<span class="identifier">Produce::val</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">(), </span><span class="identifier">K_truth_state</span><span class="plain">, </span><span class="identifier">LITERAL_IVAL</span><span class="plain">, 1);</span>
<span class="identifier">Produce::up</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">());</span>
<span class="identifier">Produce::inv_call_iname</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">(), </span><span class="identifier">Hierarchy::find</span><span class="plain">(</span><span class="identifier">PLACEINSCOPE_HL</span><span class="plain">));</span>
<span class="identifier">Produce::down</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">());</span>
<span class="identifier">Produce::val_symbol</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">(), </span><span class="identifier">K_value</span><span class="plain">, </span><span class="identifier">o2_s</span><span class="plain">);</span>
<span class="identifier">Produce::val</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">(), </span><span class="identifier">K_truth_state</span><span class="plain">, </span><span class="identifier">LITERAL_IVAL</span><span class="plain">, 1);</span>
<span class="identifier">Produce::up</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">());</span>
<span class="identifier">Produce::inv_primitive</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">(), </span><span class="identifier">STORE_BIP</span><span class="plain">);</span>
<span class="identifier">Produce::down</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">());</span>
<span class="identifier">Produce::ref_iname</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">(), </span><span class="identifier">K_object</span><span class="plain">, </span><span class="identifier">Hierarchy::find</span><span class="plain">(</span><span class="identifier">SUPPRESS_SCOPE_LOOPS_HL</span><span class="plain">));</span>
<span class="identifier">Produce::val</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">(), </span><span class="identifier">K_truth_state</span><span class="plain">, </span><span class="identifier">LITERAL_IVAL</span><span class="plain">, 0);</span>
<span class="identifier">Produce::up</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">());</span>
<span class="identifier">Produce::inv_primitive</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">(), </span><span class="identifier">STORE_BIP</span><span class="plain">);</span>
<span class="identifier">Produce::down</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">());</span>
<span class="identifier">Produce::ref_iname</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">(), </span><span class="identifier">K_object</span><span class="plain">, </span><span class="identifier">Hierarchy::find</span><span class="plain">(</span><span class="identifier">NOUN_HL</span><span class="plain">));</span>
<span class="identifier">Produce::val_symbol</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">(), </span><span class="identifier">K_value</span><span class="plain">, </span><span class="identifier">o2_s</span><span class="plain">);</span>
<span class="identifier">Produce::up</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">());</span>
<span class="identifier">Produce::up</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">());</span>
<span class="identifier">Produce::up</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">());</span>
<span class="identifier">Produce::inv_primitive</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">(), </span><span class="identifier">STORE_BIP</span><span class="plain">);</span>
<span class="identifier">Produce::down</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">());</span>
<span class="identifier">Produce::ref_iname</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">(), </span><span class="identifier">K_object</span><span class="plain">, </span><span class="identifier">Hierarchy::find</span><span class="plain">(</span><span class="identifier">NOUN_HL</span><span class="plain">));</span>
<span class="identifier">Produce::val_symbol</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">(), </span><span class="identifier">K_value</span><span class="plain">, </span><span class="identifier">obj_s</span><span class="plain">);</span>
<span class="identifier">Produce::up</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">());</span>
<span class="identifier">Produce::up</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">());</span>
<span class="identifier">Produce::up</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">());</span>
<span class="identifier">Produce::inv_primitive</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">(), </span><span class="identifier">CASE_BIP</span><span class="plain">);</span>
<span class="identifier">Produce::down</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">());</span>
<span class="identifier">Produce::val</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">(), </span><span class="identifier">K_number</span><span class="plain">, </span><span class="identifier">LITERAL_IVAL</span><span class="plain">, 3);</span>
<span class="identifier">Produce::code</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">());</span>
<span class="identifier">Produce::down</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">());</span>
<span class="identifier">Produce::inv_primitive</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">(), </span><span class="identifier">STORE_BIP</span><span class="plain">);</span>
<span class="identifier">Produce::down</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">());</span>
<span class="identifier">Produce::ref_iname</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">(), </span><span class="identifier">K_object</span><span class="plain">, </span><span class="identifier">Hierarchy::find</span><span class="plain">(</span><span class="identifier">NEXTBEST_ETYPE_HL</span><span class="plain">));</span>
<span class="identifier">Produce::val_iname</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">(), </span><span class="identifier">K_object</span><span class="plain">, </span><span class="identifier">Hierarchy::find</span><span class="plain">(</span><span class="identifier">NOTINCONTEXTPE_HL</span><span class="plain">));</span>
<span class="identifier">Produce::up</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">());</span>
<span class="identifier">Produce::inv_primitive</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">(), </span><span class="identifier">RETURN_BIP</span><span class="plain">);</span>
<span class="identifier">Produce::down</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">());</span>
<span class="identifier">Produce::val</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">(), </span><span class="identifier">K_number</span><span class="plain">, </span><span class="identifier">LITERAL_IVAL</span><span class="plain">, (</span><span class="identifier">inter_t</span><span class="plain">) (-1));</span>
<span class="identifier">Produce::up</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">());</span>
<span class="identifier">Produce::up</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">());</span>
<span class="identifier">Produce::up</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">());</span>
<span class="identifier">Produce::up</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">());</span>
<span class="identifier">Produce::up</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">());</span>
<span class="plain">} </span><span class="reserved">else</span><span class="plain"> {</span>
<span class="identifier">inter_symbol</span><span class="plain"> *</span><span class="identifier">x_s</span><span class="plain"> = </span><span class="identifier">LocalVariables::add_internal_local_c_as_symbol</span><span class="plain">(</span><span class="identifier">I</span><span class="string">"x"</span><span class="plain">, </span><span class="string">"saved value of noun"</span><span class="plain">);</span>
<span class="identifier">Produce::inv_primitive</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">(), </span><span class="identifier">STORE_BIP</span><span class="plain">);</span>
<span class="identifier">Produce::down</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">());</span>
<span class="identifier">Produce::ref_symbol</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">(), </span><span class="identifier">K_value</span><span class="plain">, </span><span class="identifier">x_s</span><span class="plain">);</span>
<span class="identifier">Produce::val_iname</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">(), </span><span class="identifier">K_object</span><span class="plain">, </span><span class="identifier">Hierarchy::find</span><span class="plain">(</span><span class="identifier">NOUN_HL</span><span class="plain">));</span>
<span class="identifier">Produce::up</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">());</span>
<span class="identifier">Produce::inv_primitive</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">(), </span><span class="identifier">RETURN_BIP</span><span class="plain">);</span>
<span class="identifier">Produce::down</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">());</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">Specifications::to_proposition</span><span class="plain">(</span><span class="identifier">nft</span><span class="plain">-</span><span class="element">&gt;the_filter</span><span class="plain">)) {</span>
<span class="identifier">Calculus::Propositions::Checker::type_check</span><span class="plain">(</span><span class="identifier">Specifications::to_proposition</span><span class="plain">(</span><span class="identifier">nft</span><span class="plain">-</span><span class="element">&gt;the_filter</span><span class="plain">), </span><span class="identifier">Calculus::Propositions::Checker::tc_no_problem_reporting</span><span class="plain">());</span>
<span class="identifier">Calculus::Deferrals::emit_test_of_proposition</span><span class="plain">(</span>
<span class="identifier">noun_var</span><span class="plain">, </span><span class="identifier">Specifications::to_proposition</span><span class="plain">(</span><span class="identifier">nft</span><span class="plain">-</span><span class="element">&gt;the_filter</span><span class="plain">));</span>
<span class="plain">} </span><span class="reserved">else</span>
<span class="identifier">Calculus::Deferrals::emit_test_if_var_matches_description</span><span class="plain">(</span><span class="identifier">noun_var</span><span class="plain">, </span><span class="identifier">nft</span><span class="plain">-</span><span class="element">&gt;the_filter</span><span class="plain">);</span>
<span class="identifier">Produce::up</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">());</span>
<span class="plain">}</span>
<span class="identifier">Routines::end</span><span class="plain">(</span><span class="identifier">save</span><span class="plain">);</span>
<span class="identifier">NonlocalVariables::set_kind</span><span class="plain">(</span><span class="identifier">I6_noun_VAR</span><span class="plain">, </span><span class="identifier">K</span><span class="plain">);</span>
<span class="plain">}</span>
</pre>
<p class="inwebparagraph"></p>
<p class="endnote">The function PL::Parsing::Tokens::Filters::nft_new is used in <a href="#SP3">&#167;3</a>.</p>
<p class="endnote">The function PL::Parsing::Tokens::Filters::nft_compile_routine_iname is used in <a href="#SP3">&#167;3</a>.</p>
<p class="endnote">The function PL::Parsing::Tokens::Filters::nft_compile_routine is used in <a href="#SP4">&#167;4</a>.</p>
<p class="inwebparagraph"><a id="SP3"></a><b>&#167;3. Access via ID. </b>For now, though, these are perhaps strangely accessed by ID number. (Because
the <code class="display"><span class="extract">parse_node</span></code> structure can't conveniently be annotated with pointers,
that's why.)
</p>
<pre class="display">
<span class="reserved">int</span><span class="plain"> </span><span class="identifier">too_late_for_further_NFTs</span><span class="plain"> = </span><span class="identifier">FALSE</span><span class="plain">;</span>
<span class="reserved">int</span><span class="plain"> </span><span class="functiontext">PL::Parsing::Tokens::Filters::new_id</span><span class="plain">(</span><span class="identifier">parse_node</span><span class="plain"> *</span><span class="identifier">spec</span><span class="plain">, </span><span class="reserved">int</span><span class="plain"> </span><span class="identifier">global_scope</span><span class="plain">, </span><span class="reserved">int</span><span class="plain"> </span><span class="identifier">any_things</span><span class="plain">) {</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">too_late_for_further_NFTs</span><span class="plain">)</span>
<span class="identifier">Problems::Issue::sentence_problem</span><span class="plain">(</span><span class="identifier">Task::syntax_tree</span><span class="plain">(), </span><span class="identifier">_p_</span><span class="plain">(</span><span class="identifier">BelievedImpossible</span><span class="plain">),</span>
<span class="string">"complicated instructions on understanding the player's command "</span>
<span class="string">"are not allowed in the past tense"</span><span class="plain">,</span>
<span class="string">"for instance by being applied to several previous turns in a row."</span><span class="plain">);</span>
<span class="identifier">kind</span><span class="plain"> *</span><span class="identifier">K</span><span class="plain"> = </span><span class="identifier">Specifications::to_kind</span><span class="plain">(</span><span class="identifier">spec</span><span class="plain">);</span>
<span class="reserved">if</span><span class="plain"> ((</span><span class="identifier">Kinds::Compare::le</span><span class="plain">(</span><span class="identifier">K</span><span class="plain">, </span><span class="identifier">K_object</span><span class="plain">) == </span><span class="identifier">FALSE</span><span class="plain">) &amp;&amp; (</span><span class="identifier">Kinds::Behaviour::request_I6_GPR</span><span class="plain">(</span><span class="identifier">K</span><span class="plain">) == </span><span class="identifier">FALSE</span><span class="plain">) &amp;&amp; (</span><span class="identifier">global_scope</span><span class="plain">))</span>
<span class="identifier">Problems::Issue::sentence_problem</span><span class="plain">(</span><span class="identifier">Task::syntax_tree</span><span class="plain">(), </span><span class="identifier">_p_</span><span class="plain">(</span><span class="identifier">BelievedImpossible</span><span class="plain">),</span>
<span class="string">"this is a kind of value I can't understand in command grammar"</span><span class="plain">,</span>
<span class="string">"so the '[any ...]' part will have to go."</span><span class="plain">);</span>
<span class="reserved">return</span><span class="plain"> </span><span class="functiontext">PL::Parsing::Tokens::Filters::nft_new</span><span class="plain">(</span><span class="identifier">spec</span><span class="plain">, </span><span class="identifier">global_scope</span><span class="plain">, </span><span class="identifier">any_things</span><span class="plain">)-&gt;</span><span class="identifier">allocation_id</span><span class="plain">;</span>
<span class="plain">}</span>
<span class="reserved">void</span><span class="plain"> </span><span class="functiontext">PL::Parsing::Tokens::Filters::compile_id</span><span class="plain">(</span><span class="reserved">int</span><span class="plain"> </span><span class="identifier">id</span><span class="plain">) {</span>
<span class="reserved">noun_filter_token</span><span class="plain"> *</span><span class="identifier">nft</span><span class="plain">;</span>
<span class="identifier">LOOP_OVER</span><span class="plain">(</span><span class="identifier">nft</span><span class="plain">, </span><span class="reserved">noun_filter_token</span><span class="plain">)</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">nft</span><span class="plain">-&gt;</span><span class="identifier">allocation_id</span><span class="plain"> == </span><span class="identifier">id</span><span class="plain">) {</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">nft</span><span class="plain">-</span><span class="element">&gt;parse_using_gpr</span><span class="plain">) </span><span class="identifier">Produce::val_iname</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">(), </span><span class="identifier">K_value</span><span class="plain">, </span><span class="identifier">Hierarchy::find</span><span class="plain">(</span><span class="identifier">GPR_TT_HL</span><span class="plain">));</span>
<span class="reserved">else</span><span class="plain"> </span><span class="reserved">if</span><span class="plain"> (</span><span class="identifier">nft</span><span class="plain">-</span><span class="element">&gt;global_scope_flag</span><span class="plain">) </span><span class="identifier">Produce::val_iname</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">(), </span><span class="identifier">K_value</span><span class="plain">, </span><span class="identifier">Hierarchy::find</span><span class="plain">(</span><span class="identifier">SCOPE_TT_HL</span><span class="plain">));</span>
<span class="reserved">else</span><span class="plain"> </span><span class="identifier">Produce::val_iname</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">(), </span><span class="identifier">K_value</span><span class="plain">, </span><span class="identifier">Hierarchy::find</span><span class="plain">(</span><span class="identifier">ROUTINEFILTER_TT_HL</span><span class="plain">));</span>
<span class="identifier">Produce::val_iname</span><span class="plain">(</span><span class="identifier">Emit::tree</span><span class="plain">(), </span><span class="identifier">K_value</span><span class="plain">, </span><span class="identifier">nft</span><span class="plain">-</span><span class="element">&gt;nft_iname</span><span class="plain">);</span>
<span class="plain">}</span>
<span class="plain">}</span>
<span class="reserved">void</span><span class="plain"> </span><span class="functiontext">PL::Parsing::Tokens::Filters::emit_id</span><span class="plain">(</span><span class="reserved">int</span><span class="plain"> </span><span class="identifier">id</span><span class="plain">) {</span>
<span class="reserved">noun_filter_token</span><span class="plain"> *</span><span class="identifier">nft</span><span class="plain">;</span>
<span class="identifier">LOOP_OVER</span><span class="plain">(</span><span class="identifier">nft</span><span class="plain">, </span><span class="reserved">noun_filter_token</span><span class="plain">)</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">nft</span><span class="plain">-&gt;</span><span class="identifier">allocation_id</span><span class="plain"> == </span><span class="identifier">id</span><span class="plain">) {</span>
<span class="identifier">inter_t</span><span class="plain"> </span><span class="identifier">annot</span><span class="plain"> = 0;</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">nft</span><span class="plain">-</span><span class="element">&gt;parse_using_gpr</span><span class="plain"> == </span><span class="identifier">FALSE</span><span class="plain">) {</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">nft</span><span class="plain">-</span><span class="element">&gt;global_scope_flag</span><span class="plain">) </span><span class="identifier">annot</span><span class="plain"> = </span><span class="identifier">SCOPE_FILTER_IANN</span><span class="plain">;</span>
<span class="reserved">else</span><span class="plain"> </span><span class="identifier">annot</span><span class="plain"> = </span><span class="identifier">NOUN_FILTER_IANN</span><span class="plain">;</span>
<span class="plain">}</span>
<span class="identifier">inter_name</span><span class="plain"> *</span><span class="identifier">iname</span><span class="plain"> = </span><span class="functiontext">PL::Parsing::Tokens::Filters::nft_compile_routine_iname</span><span class="plain">(</span><span class="identifier">nft</span><span class="plain">);</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">annot</span><span class="plain"> != 0)</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">Produce::read_annotation</span><span class="plain">(</span><span class="identifier">iname</span><span class="plain">, </span><span class="identifier">annot</span><span class="plain">) != 1)</span>
<span class="identifier">Produce::annotate_i</span><span class="plain">(</span><span class="identifier">iname</span><span class="plain">, </span><span class="identifier">annot</span><span class="plain">, 1);</span>
<span class="identifier">Emit::array_iname_entry</span><span class="plain">(</span><span class="identifier">iname</span><span class="plain">);</span>
<span class="plain">}</span>
<span class="plain">}</span>
</pre>
<p class="inwebparagraph"></p>
<p class="endnote">The function PL::Parsing::Tokens::Filters::new_id is used in 5/gt2 (<a href="5-gt2.html#SP11_2">&#167;11.2</a>, <a href="5-gt2.html#SP11_4">&#167;11.4</a>).</p>
<p class="endnote">The function PL::Parsing::Tokens::Filters::compile_id is used in 5/gt2 (<a href="5-gt2.html#SP12">&#167;12</a>).</p>
<p class="endnote">The function PL::Parsing::Tokens::Filters::emit_id is used in 5/gt2 (<a href="5-gt2.html#SP12">&#167;12</a>).</p>
<p class="inwebparagraph"><a id="SP4"></a><b>&#167;4. Compiling everything. </b>Having referred to these filter routines, we need to compile them.
</p>
<pre class="display">
<span class="reserved">void</span><span class="plain"> </span><span class="functiontext">PL::Parsing::Tokens::Filters::compile</span><span class="plain">(</span><span class="reserved">void</span><span class="plain">) {</span>
<span class="reserved">noun_filter_token</span><span class="plain"> *</span><span class="identifier">nft</span><span class="plain">;</span>
<span class="identifier">LOOP_OVER</span><span class="plain">(</span><span class="identifier">nft</span><span class="plain">, </span><span class="reserved">noun_filter_token</span><span class="plain">)</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">nft</span><span class="plain">-</span><span class="element">&gt;nft_compiled</span><span class="plain"> == </span><span class="identifier">FALSE</span><span class="plain">) {</span>
<span class="identifier">current_sentence</span><span class="plain"> = </span><span class="identifier">nft</span><span class="plain">-</span><span class="element">&gt;nft_created_at</span><span class="plain">;</span>
<span class="functiontext">PL::Parsing::Tokens::Filters::nft_compile_routine</span><span class="plain">(</span><span class="identifier">nft</span><span class="plain">);</span>
<span class="identifier">nft</span><span class="plain">-</span><span class="element">&gt;nft_compiled</span><span class="plain"> = </span><span class="identifier">TRUE</span><span class="plain">;</span>
<span class="plain">}</span>
<span class="comment">too_late_for_further_NFTs = TRUE;</span>
<span class="plain">}</span>
</pre>
<p class="inwebparagraph"></p>
<p class="endnote">The function PL::Parsing::Tokens::Filters::compile appears nowhere else.</p>
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