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<!--Weave of 'Properties' generated by Inweb-->
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<div class="breadcrumbs">
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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">knowledge</a></li><li><a href="index.html#3">Chapter 3: Properties</a></li><li><b>Properties</b></li></ul></div>
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<p class="purpose">Subjects in the model world have properties associated with them: some either/or, others with values.</p>
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<ul class="toc"><li><a href="3-prp.html#SP1">§1. Introduction</a></li><li><a href="3-prp.html#SP2">§2. Creation</a></li><li><a href="3-prp.html#SP4">§4. The kinds of properties and their contents</a></li><li><a href="3-prp.html#SP5">§5. Nonterminals for bare property names</a></li><li><a href="3-prp.html#SP11">§11. Access functions</a></li><li><a href="3-prp.html#SP14">§14. Logging</a></li><li><a href="3-prp.html#SP15">§15. Inter translation requests</a></li><li><a href="3-prp.html#SP17">§17. Compiling property values</a></li><li><a href="3-prp.html#SP19">§19. Coincidence</a></li><li><a href="3-prp.html#SP20">§20. Translated names of properties</a></li></ul><hr class="tocbar">
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<p class="commentary firstcommentary"><a id="SP1" class="paragraph-anchor"></a><b>§1. Introduction. </b>Each differently-named property has a <a href="3-prp.html#SP1" class="internal">property</a> instance. It can be
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had by multiple subjects — usually kinds or instances — which is why it
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has a list of <span class="extract"><span class="extract-syntax">permissions</span></span> saying who can have it, and not just one subject;
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but it is the same essential property whoever has it, and in particular has
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the same kind. A door and a scene could both have the property "style", but
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it would have to hold the same kind of value in each case.
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</p>
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<p class="commentary">Properties come in two types: either/or, such as "open", which has a named
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property acting as its negation, "closed"; or valued, such as "carrying
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capacity". These have different semantics, and very different run-time
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implementations. In this section of code, we deal with what they have in
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common.
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</p>
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<pre class="displayed-code all-displayed-code code-font">
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<span class="reserved-syntax">typedef</span><span class="plain-syntax"> </span><span class="reserved-syntax">struct</span><span class="plain-syntax"> </span><span class="reserved-syntax">property</span><span class="plain-syntax"> {</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">struct</span><span class="plain-syntax"> </span><span class="identifier-syntax">wording</span><span class="plain-syntax"> </span><span class="identifier-syntax">name</span><span class="plain-syntax">; </span><span class="comment-syntax"> name of property</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">has_of_in_the_name</span><span class="plain-syntax">; </span><span class="comment-syntax"> looks like a property test, e.g., "point of view"?</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">Inter_level_only</span><span class="plain-syntax">; </span><span class="comment-syntax"> i.e., does not correspond to an I7 property</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">struct</span><span class="plain-syntax"> </span><span class="identifier-syntax">parse_node</span><span class="plain-syntax"> *</span><span class="identifier-syntax">where_created</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">struct</span><span class="plain-syntax"> </span><span class="identifier-syntax">linked_list</span><span class="plain-syntax"> *</span><span class="identifier-syntax">permissions</span><span class="plain-syntax">; </span><span class="comment-syntax"> of </span><span class="extract"><span class="extract-syntax">property_permission</span></span><span class="comment-syntax">: who can have this?</span>
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<span class="plain-syntax"> </span><span class="comment-syntax"> exactly one of these must be non-</span><span class="extract"><span class="extract-syntax">NULL</span></span><span class="comment-syntax">:</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">struct</span><span class="plain-syntax"> </span><span class="reserved-syntax">either_or_property_data</span><span class="plain-syntax"> *</span><span class="identifier-syntax">either_or_data</span><span class="plain-syntax">; </span><span class="comment-syntax"> for an either/or property</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">struct</span><span class="plain-syntax"> </span><span class="reserved-syntax">value_property_data</span><span class="plain-syntax"> *</span><span class="identifier-syntax">value_data</span><span class="plain-syntax">; </span><span class="comment-syntax"> for a value property</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">struct</span><span class="plain-syntax"> </span><span class="identifier-syntax">property_compilation_data</span><span class="plain-syntax"> </span><span class="identifier-syntax">compilation_data</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">struct</span><span class="plain-syntax"> </span><span class="identifier-syntax">possession_marker</span><span class="plain-syntax"> </span><span class="identifier-syntax">pom</span><span class="plain-syntax">; </span><span class="comment-syntax"> for temporary use when checking implications</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">CLASS_DEFINITION</span>
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<span class="plain-syntax">} </span><span class="reserved-syntax">property</span><span class="plain-syntax">;</span>
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</pre>
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<ul class="endnotetexts"><li>The structure property is accessed in 2/ins, 2/nv, 3/ep, 3/epa, 3/vp, 3/spr, 3/msr, 4/vs, 4/pp, 4/cos, 5/pi, 5/tmw, 5/tnt and here.</li></ul>
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<p class="commentary firstcommentary"><a id="SP2" class="paragraph-anchor"></a><b>§2. Creation. </b>We have two basic operations: (1) To find the structure corresponding to a
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given textual name, creating it afresh if necessary. If we do obtain an
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existing one, we need to make absolutely certain that we aren't using an
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either/or property where a valued property is wanted, or vice versa.
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</p>
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<pre class="displayed-code all-displayed-code code-font">
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<span class="reserved-syntax">property</span><span class="plain-syntax"> *</span><span class="function-syntax">Properties::obtain</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">Properties::obtain</span></span>:<br/>Either-Or Properties - <a href="3-ep.html#SP3">§3</a><br/>Valued Properties - <a href="3-vp.html#SP2">§2</a>, <a href="3-vp.html#SP3">§3</a></span></button><span class="plain-syntax">(</span><span class="identifier-syntax">wording</span><span class="plain-syntax"> </span><span class="identifier-syntax">W</span><span class="plain-syntax">, </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">valued</span><span class="plain-syntax">) {</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">parse_node</span><span class="plain-syntax"> *</span><span class="identifier-syntax">p</span><span class="plain-syntax"> = </span><span class="identifier-syntax">Lexicon::retrieve</span><span class="plain-syntax">(</span><span class="identifier-syntax">PROPERTY_MC</span><span class="plain-syntax">, </span><span class="identifier-syntax">W</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">property</span><span class="plain-syntax"> *</span><span class="identifier-syntax">prn</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">p</span><span class="plain-syntax"> == </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">) {</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">prn</span><span class="plain-syntax"> = </span><a href="3-prp.html#SP3" class="function-link"><span class="function-syntax">Properties::create</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">W</span><span class="plain-syntax">, </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">, </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">, (</span><span class="identifier-syntax">valued</span><span class="plain-syntax">)?</span><span class="identifier-syntax">FALSE:TRUE</span><span class="plain-syntax">, </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">valued</span><span class="plain-syntax">) </span><a href="3-vp.html#SP5" class="function-link"><span class="function-syntax">ValueProperties::make_setting_bp</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">prn</span><span class="plain-syntax">, </span><span class="identifier-syntax">W</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> } </span><span class="reserved-syntax">else</span><span class="plain-syntax"> {</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">prn</span><span class="plain-syntax"> = </span><span class="identifier-syntax">Rvalues::to_property</span><span class="plain-syntax">(</span><span class="identifier-syntax">p</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> ((</span><span class="identifier-syntax">valued</span><span class="plain-syntax">) && (</span><span class="identifier-syntax">prn</span><span class="plain-syntax">-></span><span class="element-syntax">either_or_data</span><span class="plain-syntax">))</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">internal_error</span><span class="plain-syntax">(</span><span class="string-syntax">"either/or property made into valued"</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> ((</span><span class="identifier-syntax">valued</span><span class="plain-syntax"> == </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">) && (</span><span class="identifier-syntax">prn</span><span class="plain-syntax">-></span><span class="element-syntax">either_or_data</span><span class="plain-syntax"> == </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">))</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">internal_error</span><span class="plain-syntax">(</span><span class="string-syntax">"valued property made into either/or"</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> }</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">prn</span><span class="plain-syntax">;</span>
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<span class="plain-syntax">}</span>
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</pre>
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<p class="commentary firstcommentary"><a id="SP3" class="paragraph-anchor"></a><b>§3. </b>And: (2) To create a new structure outright.
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</p>
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<pre class="displayed-code all-displayed-code code-font">
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<span class="reserved-syntax">property</span><span class="plain-syntax"> *</span><span class="function-syntax">Properties::create</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">Properties::create</span></span>:<br/><a href="3-prp.html#SP2">§2</a><br/>Either-Or Properties - <a href="3-ep.html#SP4">§4</a><br/>Valued Properties - <a href="3-vp.html#SP4">§4</a></span></button><span class="plain-syntax">(</span><span class="identifier-syntax">wording</span><span class="plain-syntax"> </span><span class="identifier-syntax">W</span><span class="plain-syntax">, </span><span class="identifier-syntax">package_request</span><span class="plain-syntax"> *</span><span class="identifier-syntax">using_package</span><span class="plain-syntax">,</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">inter_name</span><span class="plain-syntax"> *</span><span class="identifier-syntax">using_iname</span><span class="plain-syntax">, </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">eo</span><span class="plain-syntax">, </span><span class="identifier-syntax">text_stream</span><span class="plain-syntax"> *</span><span class="identifier-syntax">translation</span><span class="plain-syntax">) {</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">W</span><span class="plain-syntax"> = </span><span class="identifier-syntax">Articles::remove_article</span><span class="plain-syntax">(</span><span class="identifier-syntax">W</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="3-prp.html#SP3_1" class="named-paragraph-link"><span class="named-paragraph">Ensure that the new property name is one we can live with</span><span class="named-paragraph-number">3.1</span></a></span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="3-prp.html#SP3_2" class="named-paragraph-link"><span class="named-paragraph">See if the property name already has a meaning, which may or may not be okay</span><span class="named-paragraph-number">3.2</span></a></span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">property</span><span class="plain-syntax"> *</span><span class="identifier-syntax">prn</span><span class="plain-syntax"> = </span><span class="identifier-syntax">CREATE</span><span class="plain-syntax">(</span><span class="reserved-syntax">property</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="3-prp.html#SP3_3" class="named-paragraph-link"><span class="named-paragraph">Initialise the property name structure</span><span class="named-paragraph-number">3.3</span></a></span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="3-prp.html#SP3_4" class="named-paragraph-link"><span class="named-paragraph">Does the new property have the same name as a kind of value?</span><span class="named-paragraph-number">3.4</span></a></span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="3-prp.html#SP3_7" class="named-paragraph-link"><span class="named-paragraph">Note the significance of this property, if it needs compiler support</span><span class="named-paragraph-number">3.7</span></a></span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">Wordings::nonempty</span><span class="plain-syntax">(</span><span class="identifier-syntax">W</span><span class="plain-syntax">)) </span><span class="named-paragraph-container code-font"><a href="3-prp.html#SP3_9" class="named-paragraph-link"><span class="named-paragraph">Register the property name as a noun</span><span class="named-paragraph-number">3.9</span></a></span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">else</span><span class="plain-syntax"> </span><span class="identifier-syntax">RTProperties::dont_show_in_index</span><span class="plain-syntax">(</span><span class="identifier-syntax">prn</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">LOGIF</span><span class="plain-syntax">(</span><span class="identifier-syntax">PROPERTY_CREATIONS</span><span class="plain-syntax">, </span><span class="string-syntax">"Created property: $Y\n"</span><span class="plain-syntax">, </span><span class="identifier-syntax">prn</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">prn</span><span class="plain-syntax">;</span>
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<span class="plain-syntax">}</span>
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</pre>
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<p class="commentary firstcommentary"><a id="SP3_1" class="paragraph-anchor"></a><b>§3.1. </b><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Ensure that the new property name is one we can live with</span><span class="named-paragraph-number">3.1</span></span><span class="comment-syntax"> =</span>
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</p>
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<pre class="displayed-code all-displayed-code code-font">
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<span class="plain-syntax"> </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">unfortunate</span><span class="plain-syntax"> = </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> ((</span><span class="function-syntax"><k-kind></span><span class="plain-syntax">(</span><span class="identifier-syntax">W</span><span class="plain-syntax">)) && (</span><span class="function-syntax"><<rp>></span><span class="plain-syntax"> == </span><span class="identifier-syntax">K_value</span><span class="plain-syntax">)) {</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">unfortunate</span><span class="plain-syntax"> = </span><span class="identifier-syntax">TRUE</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">StandardProblems::sentence_problem</span><span class="plain-syntax">(</span><span class="identifier-syntax">Task::syntax_tree</span><span class="plain-syntax">(), </span><span class="identifier-syntax">_p_</span><span class="plain-syntax">(</span><span class="identifier-syntax">BelievedImpossible</span><span class="plain-syntax">),</span>
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<span class="plain-syntax"> </span><span class="string-syntax">"the single word 'value' cannot be used as the name of a property"</span><span class="plain-syntax">,</span>
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<span class="plain-syntax"> </span><span class="string-syntax">"because it has a much broader meaning already. Inform uses the "</span>
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<span class="plain-syntax"> </span><span class="string-syntax">"word 'value' to mean any number, time of day, name of something, "</span>
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<span class="plain-syntax"> </span><span class="string-syntax">"etcetera: and because of that very broadness, Inform cannot decide "</span>
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<span class="plain-syntax"> </span><span class="string-syntax">"what kind of value a simple 'value' might be. So 'A door has "</span>
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<span class="plain-syntax"> </span><span class="string-syntax">"a value' is not allowed; but 'A door has a number called the "</span>
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|
<span class="plain-syntax"> </span><span class="string-syntax">"room number' would be fine."</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> }</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">Wordings::length</span><span class="plain-syntax">(</span><span class="identifier-syntax">W</span><span class="plain-syntax">) > </span><span class="identifier-syntax">MAX_WORDS_IN_ASSEMBLAGE</span><span class="plain-syntax">-2) {</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">StandardProblems::sentence_problem</span><span class="plain-syntax">(</span><span class="identifier-syntax">Task::syntax_tree</span><span class="plain-syntax">(),</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">_p_</span><span class="plain-syntax">(</span><span class="identifier-syntax">PM_PropertyNameTooLong</span><span class="plain-syntax">),</span>
|
|
<span class="plain-syntax"> </span><span class="string-syntax">"this is too long a name for a single property to have"</span><span class="plain-syntax">,</span>
|
|
<span class="plain-syntax"> </span><span class="string-syntax">"and would become unwieldy."</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">W</span><span class="plain-syntax"> = </span><span class="identifier-syntax">Wordings::truncate</span><span class="plain-syntax">(</span><span class="identifier-syntax">W</span><span class="plain-syntax">, </span><span class="identifier-syntax">MAX_WORDS_IN_ASSEMBLAGE</span><span class="plain-syntax">-2);</span>
|
|
<span class="plain-syntax"> }</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="function-syntax"><unsuitable-name></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">unfortunate</span><span class="plain-syntax"> = </span><span class="identifier-syntax">TRUE</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">Problems::quote_source</span><span class="plain-syntax">(1, </span><span class="identifier-syntax">current_sentence</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">Problems::quote_wording</span><span class="plain-syntax">(2, </span><span class="identifier-syntax">W</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">StandardProblems::handmade_problem</span><span class="plain-syntax">(</span><span class="identifier-syntax">Task::syntax_tree</span><span class="plain-syntax">(),</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">_p_</span><span class="plain-syntax">(</span><span class="identifier-syntax">PM_PropertyNameUnsuitable</span><span class="plain-syntax">));</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">Problems::issue_problem_segment</span><span class="plain-syntax">(</span>
|
|
<span class="plain-syntax"> </span><span class="string-syntax">"The sentence %1 seems to create a new property called '%2', but "</span>
|
|
<span class="plain-syntax"> </span><span class="string-syntax">"this is not a good name, and I think I must have misread what "</span>
|
|
<span class="plain-syntax"> </span><span class="string-syntax">"you wanted. Maybe the punctuation is wrong?"</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">Problems::issue_problem_end</span><span class="plain-syntax">();</span>
|
|
<span class="plain-syntax"> }</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">unfortunate</span><span class="plain-syntax">) </span><span class="identifier-syntax">W</span><span class="plain-syntax"> = </span><span class="identifier-syntax">Feeds::feed_text</span><span class="plain-syntax">(</span><span class="identifier-syntax">I</span><span class="string-syntax">"problem recovery name"</span><span class="plain-syntax">);</span>
|
|
</pre>
|
|
<ul class="endnotetexts"><li>This code is used in <a href="3-prp.html#SP3">§3</a>.</li></ul>
|
|
<p class="commentary firstcommentary"><a id="SP3_2" class="paragraph-anchor"></a><b>§3.2. </b>Name clashes between properties and other constructs are surprisingly often
|
|
unproblematic, so we won't reject a name just because it already means
|
|
something.
|
|
</p>
|
|
|
|
<p class="commentary"><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">See if the property name already has a meaning, which may or may not be okay</span><span class="named-paragraph-number">3.2</span></span><span class="comment-syntax"> =</span>
|
|
</p>
|
|
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="function-syntax"><s-type-expression-or-value></span><span class="plain-syntax">(</span><span class="identifier-syntax">W</span><span class="plain-syntax">)) {</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">okay</span><span class="plain-syntax"> = </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">parse_node</span><span class="plain-syntax"> *</span><span class="identifier-syntax">spec</span><span class="plain-syntax"> = </span><span class="function-syntax"><<rp>></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">Specifications::is_kind_like</span><span class="plain-syntax">(</span><span class="identifier-syntax">spec</span><span class="plain-syntax">)) </span><span class="identifier-syntax">okay</span><span class="plain-syntax"> = </span><span class="identifier-syntax">TRUE</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">Rvalues::is_CONSTANT_construction</span><span class="plain-syntax">(</span><span class="identifier-syntax">spec</span><span class="plain-syntax">, </span><span class="identifier-syntax">CON_table_column</span><span class="plain-syntax">)) </span><span class="identifier-syntax">okay</span><span class="plain-syntax"> = </span><span class="identifier-syntax">TRUE</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">Rvalues::is_CONSTANT_construction</span><span class="plain-syntax">(</span><span class="identifier-syntax">spec</span><span class="plain-syntax">, </span><span class="identifier-syntax">CON_property</span><span class="plain-syntax">)) </span><span class="identifier-syntax">okay</span><span class="plain-syntax"> = </span><span class="identifier-syntax">TRUE</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">Specifications::is_description</span><span class="plain-syntax">(</span><span class="identifier-syntax">spec</span><span class="plain-syntax">)) </span><span class="identifier-syntax">okay</span><span class="plain-syntax"> = </span><span class="identifier-syntax">TRUE</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">Node::is</span><span class="plain-syntax">(</span><span class="identifier-syntax">spec</span><span class="plain-syntax">, </span><span class="identifier-syntax">NONLOCAL_VARIABLE_NT</span><span class="plain-syntax">)) </span><span class="identifier-syntax">okay</span><span class="plain-syntax"> = </span><span class="identifier-syntax">TRUE</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">okay</span><span class="plain-syntax"> == </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">LOG</span><span class="plain-syntax">(</span><span class="string-syntax">"Existing meaning: $P"</span><span class="plain-syntax">, </span><span class="identifier-syntax">spec</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">Problems::quote_source</span><span class="plain-syntax">(1, </span><span class="identifier-syntax">current_sentence</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">Problems::quote_wording</span><span class="plain-syntax">(2, </span><span class="identifier-syntax">W</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">Problems::quote_kind_of</span><span class="plain-syntax">(3, </span><span class="identifier-syntax">spec</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">StandardProblems::handmade_problem</span><span class="plain-syntax">(</span><span class="identifier-syntax">Task::syntax_tree</span><span class="plain-syntax">(),</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">_p_</span><span class="plain-syntax">(</span><span class="identifier-syntax">PM_PropertyNameClash</span><span class="plain-syntax">));</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">Problems::issue_problem_segment</span><span class="plain-syntax">(</span>
|
|
<span class="plain-syntax"> </span><span class="string-syntax">"You wrote %1, but '%2' is not free to be the name of a fresh "</span>
|
|
<span class="plain-syntax"> </span><span class="string-syntax">"property: it already has a meaning (as %3)."</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">Problems::issue_problem_end</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="3-prp.html#SP3">§3</a>.</li></ul>
|
|
<p class="commentary firstcommentary"><a id="SP3_3" class="paragraph-anchor"></a><b>§3.3. </b>So by this point the new property will be allowed.
|
|
</p>
|
|
|
|
<p class="commentary"><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Initialise the property name structure</span><span class="named-paragraph-number">3.3</span></span><span class="comment-syntax"> =</span>
|
|
</p>
|
|
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">prn</span><span class="plain-syntax">-></span><span class="element-syntax">name</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">prn</span><span class="plain-syntax">-></span><span class="element-syntax">has_of_in_the_name</span><span class="plain-syntax"> = </span><span class="function-syntax"><name-looking-like-property-test></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">prn</span><span class="plain-syntax">-></span><span class="element-syntax">where_created</span><span class="plain-syntax"> = </span><span class="identifier-syntax">current_sentence</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">prn</span><span class="plain-syntax">-></span><span class="element-syntax">permissions</span><span class="plain-syntax"> = </span><span class="identifier-syntax">NEW_LINKED_LIST</span><span class="plain-syntax">(</span><span class="reserved-syntax">property_permission</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">prn</span><span class="plain-syntax">-></span><span class="element-syntax">Inter_level_only</span><span class="plain-syntax"> = </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">RTProperties::initialise_pcd</span><span class="plain-syntax">(</span><span class="identifier-syntax">prn</span><span class="plain-syntax">, </span><span class="identifier-syntax">using_package</span><span class="plain-syntax">, </span><span class="identifier-syntax">using_iname</span><span class="plain-syntax">, </span><span class="identifier-syntax">translation</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">eo</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">prn</span><span class="plain-syntax">-></span><span class="element-syntax">either_or_data</span><span class="plain-syntax"> = </span><a href="3-ep.html#SP2" class="function-link"><span class="function-syntax">EitherOrProperties::new_eo_data</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">prn</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">prn</span><span class="plain-syntax">-></span><span class="element-syntax">value_data</span><span class="plain-syntax"> = </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> } </span><span class="reserved-syntax">else</span><span class="plain-syntax"> {</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">prn</span><span class="plain-syntax">-></span><span class="element-syntax">either_or_data</span><span class="plain-syntax"> = </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">prn</span><span class="plain-syntax">-></span><span class="element-syntax">value_data</span><span class="plain-syntax"> = </span><a href="3-vp.html#SP1" class="function-link"><span class="function-syntax">ValueProperties::new_value_data</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">prn</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> }</span>
|
|
</pre>
|
|
<ul class="endnotetexts"><li>This code is used in <a href="3-prp.html#SP3">§3</a>.</li></ul>
|
|
<p class="commentary firstcommentary"><a id="SP3_4" class="paragraph-anchor"></a><b>§3.4. </b><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Does the new property have the same name as a kind of value?</span><span class="named-paragraph-number">3.4</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">if</span><span class="plain-syntax"> (</span><span class="function-syntax"><k-kind></span><span class="plain-syntax">(</span><span class="identifier-syntax">W</span><span class="plain-syntax">))</span>
|
|
<span class="plain-syntax"> </span><a href="3-vp.html#SP7" class="function-link"><span class="function-syntax">ValueProperties::make_coincide_with_kind</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">prn</span><span class="plain-syntax">, </span><span class="function-syntax"><<rp>></span><span class="plain-syntax">);</span>
|
|
</pre>
|
|
<ul class="endnotetexts"><li>This code is used in <a href="3-prp.html#SP3">§3</a>.</li></ul>
|
|
<p class="commentary firstcommentary"><a id="SP3_5" class="paragraph-anchor"></a><b>§3.5. </b>A few properties have special significance to core Inform, though features
|
|
are interested in many others:
|
|
</p>
|
|
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="reserved-syntax">property</span><span class="plain-syntax"> *</span><span class="identifier-syntax">P_description</span><span class="plain-syntax"> = </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">; </span><span class="comment-syntax"> a text property for holding annotations</span>
|
|
<span class="reserved-syntax">property</span><span class="plain-syntax"> *</span><span class="identifier-syntax">P_specification</span><span class="plain-syntax"> = </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">; </span><span class="comment-syntax"> a pseudo-property for indexing kinds</span>
|
|
<span class="reserved-syntax">property</span><span class="plain-syntax"> *</span><span class="identifier-syntax">P_indefinite_appearance_text</span><span class="plain-syntax"> = </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">; </span><span class="comment-syntax"> quoted text which seems to describe this</span>
|
|
<span class="reserved-syntax">property</span><span class="plain-syntax"> *</span><span class="identifier-syntax">P_variable_initial_value</span><span class="plain-syntax"> = </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">; </span><span class="comment-syntax"> a pseudo-property for initialising variables</span>
|
|
<span class="reserved-syntax">property</span><span class="plain-syntax"> *</span><span class="identifier-syntax">P_grammatical_gender</span><span class="plain-syntax"> = </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">; </span><span class="comment-syntax"> a value property describing names</span>
|
|
</pre>
|
|
<p class="commentary firstcommentary"><a id="SP3_6" class="paragraph-anchor"></a><b>§3.6. </b>The first four of these are recognised by having the names in this Preform
|
|
nonterminal; the fifth is detected instead by having the same name as the
|
|
kind "grammatical gender" — see <a href="2-ins.html#SP7" class="internal">Instances::make_kind_coincident</a>.
|
|
</p>
|
|
|
|
<pre class="Preform-displayed-code all-displayed-code code-font">
|
|
<span class="Preform-function-syntax"><notable-properties></span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">::=</span>
|
|
<span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">description</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">|</span>
|
|
<span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">specification</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">|</span>
|
|
<span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">indefinite</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">appearance</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">text</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">|</span>
|
|
<span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">variable</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">initial</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">value</span>
|
|
</pre>
|
|
<ul class="endnotetexts"><li>This is <a href="../words-module/4-ap.html" class="internal">Preform grammar</a>, not regular C code.</li></ul>
|
|
<p class="commentary firstcommentary"><a id="SP3_7" class="paragraph-anchor"></a><b>§3.7. </b><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Note the significance of this property, if it needs compiler support</span><span class="named-paragraph-number">3.7</span></span><span class="Preform-comment-syntax"> =</span>
|
|
</p>
|
|
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="function-syntax"><notable-properties></span><span class="plain-syntax">(</span><span class="identifier-syntax">W</span><span class="plain-syntax">)) {</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">switch</span><span class="plain-syntax"> (</span><span class="function-syntax"><<r>></span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">case</span><span class="plain-syntax"> </span><span class="constant-syntax">0</span><span class="plain-syntax">: </span><span class="identifier-syntax">P_description</span><span class="plain-syntax"> = </span><span class="identifier-syntax">prn</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">break</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">case</span><span class="plain-syntax"> </span><span class="constant-syntax">1</span><span class="plain-syntax">: </span><span class="identifier-syntax">P_specification</span><span class="plain-syntax"> = </span><span class="identifier-syntax">prn</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><a href="3-vp.html#SP6" class="function-link"><span class="function-syntax">ValueProperties::set_kind</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">prn</span><span class="plain-syntax">, </span><span class="identifier-syntax">K_text</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">RTProperties::do_not_compile</span><span class="plain-syntax">(</span><span class="identifier-syntax">prn</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">RTProperties::dont_show_in_index</span><span class="plain-syntax">(</span><span class="identifier-syntax">prn</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><a href="4-pp.html#SP3" class="function-link"><span class="function-syntax">PropertyPermissions::grant</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">model_world</span><span class="plain-syntax">, </span><span class="identifier-syntax">P_specification</span><span class="plain-syntax">, </span><span class="identifier-syntax">TRUE</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">break</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">case</span><span class="plain-syntax"> </span><span class="constant-syntax">2</span><span class="plain-syntax">: </span><span class="identifier-syntax">P_indefinite_appearance_text</span><span class="plain-syntax"> = </span><span class="identifier-syntax">prn</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><a href="3-vp.html#SP6" class="function-link"><span class="function-syntax">ValueProperties::set_kind</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">prn</span><span class="plain-syntax">, </span><span class="identifier-syntax">K_text</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">RTProperties::do_not_compile</span><span class="plain-syntax">(</span><span class="identifier-syntax">prn</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">RTProperties::dont_show_in_index</span><span class="plain-syntax">(</span><span class="identifier-syntax">prn</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><a href="4-pp.html#SP3" class="function-link"><span class="function-syntax">PropertyPermissions::grant</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">global_constants</span><span class="plain-syntax">,</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">P_indefinite_appearance_text</span><span class="plain-syntax">, </span><span class="identifier-syntax">TRUE</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">break</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">case</span><span class="plain-syntax"> </span><span class="constant-syntax">3</span><span class="plain-syntax">: </span><span class="identifier-syntax">P_variable_initial_value</span><span class="plain-syntax"> = </span><span class="identifier-syntax">prn</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">RTProperties::do_not_compile</span><span class="plain-syntax">(</span><span class="identifier-syntax">prn</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><a href="3-vp.html#SP6" class="function-link"><span class="function-syntax">ValueProperties::set_kind</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">prn</span><span class="plain-syntax">, </span><span class="identifier-syntax">K_value</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">RTProperties::dont_show_in_index</span><span class="plain-syntax">(</span><span class="identifier-syntax">prn</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><a href="4-pp.html#SP3" class="function-link"><span class="function-syntax">PropertyPermissions::grant</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">global_variables</span><span class="plain-syntax">, </span><span class="identifier-syntax">P_variable_initial_value</span><span class="plain-syntax">, </span><span class="identifier-syntax">TRUE</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">break</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> }</span>
|
|
<span class="plain-syntax"> }</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">PluginCalls::new_property_notify</span><span class="plain-syntax">(</span><span class="identifier-syntax">prn</span><span class="plain-syntax">);</span>
|
|
</pre>
|
|
<ul class="endnotetexts"><li>This code is used in <a href="3-prp.html#SP3">§3</a>.</li></ul>
|
|
<p class="commentary firstcommentary"><a id="SP3_8" class="paragraph-anchor"></a><b>§3.8. </b>To clarify their meanings as nouns, the word "property" can be prepended;
|
|
thus "the property open", for instance. We achieve this by registering the
|
|
name in both forms. The following grammar is used to construct this prefix.
|
|
</p>
|
|
|
|
<pre class="Preform-displayed-code all-displayed-code code-font">
|
|
<span class="Preform-function-syntax"><property-name-construction></span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">::=</span>
|
|
<span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">property</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">...</span>
|
|
</pre>
|
|
<ul class="endnotetexts"><li>This is <a href="../words-module/4-ap.html" class="internal">Preform grammar</a>, not regular C code.</li></ul>
|
|
<p class="commentary firstcommentary"><a id="SP3_9" class="paragraph-anchor"></a><b>§3.9. </b><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Register the property name as a noun</span><span class="named-paragraph-number">3.9</span></span><span class="Preform-comment-syntax"> =</span>
|
|
</p>
|
|
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">Nouns::new_proper_noun</span><span class="plain-syntax">(</span><span class="identifier-syntax">W</span><span class="plain-syntax">, </span><span class="identifier-syntax">NEUTER_GENDER</span><span class="plain-syntax">, </span><span class="identifier-syntax">ADD_TO_LEXICON_NTOPT</span><span class="plain-syntax">,</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">PROPERTY_MC</span><span class="plain-syntax">, </span><span class="identifier-syntax">Rvalues::from_property</span><span class="plain-syntax">(</span><span class="identifier-syntax">prn</span><span class="plain-syntax">), </span><span class="identifier-syntax">Task::language_of_syntax</span><span class="plain-syntax">());</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">word_assemblage</span><span class="plain-syntax"> </span><span class="identifier-syntax">wa</span><span class="plain-syntax"> =</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">PreformUtilities::merge</span><span class="plain-syntax">(</span><span class="function-syntax"><property-name-construction></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">WordAssemblages::from_wording</span><span class="plain-syntax">(</span><span class="identifier-syntax">W</span><span class="plain-syntax">));</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">wording</span><span class="plain-syntax"> </span><span class="identifier-syntax">AW</span><span class="plain-syntax"> = </span><span class="identifier-syntax">WordAssemblages::to_wording</span><span class="plain-syntax">(&</span><span class="identifier-syntax">wa</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">Nouns::new_proper_noun</span><span class="plain-syntax">(</span><span class="identifier-syntax">AW</span><span class="plain-syntax">, </span><span class="identifier-syntax">NEUTER_GENDER</span><span class="plain-syntax">, </span><span class="identifier-syntax">ADD_TO_LEXICON_NTOPT</span><span class="plain-syntax">,</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">PROPERTY_MC</span><span class="plain-syntax">, </span><span class="identifier-syntax">Rvalues::from_property</span><span class="plain-syntax">(</span><span class="identifier-syntax">prn</span><span class="plain-syntax">), </span><span class="identifier-syntax">Task::language_of_syntax</span><span class="plain-syntax">());</span>
|
|
</pre>
|
|
<ul class="endnotetexts"><li>This code is used in <a href="3-prp.html#SP3">§3</a>.</li></ul>
|
|
<p class="commentary firstcommentary"><a id="SP4" class="paragraph-anchor"></a><b>§4. The kinds of properties and their contents. </b>For any kind \(K\), "\(K\)-valued property" is also a kind. Note that an either-or
|
|
property is treated as if a valued property holding a "truth state".
|
|
</p>
|
|
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="identifier-syntax">kind</span><span class="plain-syntax"> *</span><span class="function-syntax">Properties::to_kind</span><span class="plain-syntax">(</span><span class="reserved-syntax">property</span><span class="plain-syntax"> *</span><span class="identifier-syntax">prn</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">prn</span><span class="plain-syntax"> == </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">) </span><span class="identifier-syntax">internal_error</span><span class="plain-syntax">(</span><span class="string-syntax">"took kind of null property"</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">Kinds::unary_con</span><span class="plain-syntax">(</span><span class="identifier-syntax">CON_property</span><span class="plain-syntax">, </span><a href="3-prp.html#SP4" class="function-link"><span class="function-syntax">Properties::kind_of_contents</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">prn</span><span class="plain-syntax">));</span>
|
|
<span class="plain-syntax">}</span>
|
|
|
|
<span class="identifier-syntax">kind</span><span class="plain-syntax"> *</span><span class="function-syntax">Properties::kind_of_contents</span><span class="plain-syntax">(</span><span class="reserved-syntax">property</span><span class="plain-syntax"> *</span><span class="identifier-syntax">prn</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">prn</span><span class="plain-syntax"> == </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">) </span><span class="identifier-syntax">internal_error</span><span class="plain-syntax">(</span><span class="string-syntax">"took kind of null property"</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">prn</span><span class="plain-syntax">-></span><span class="element-syntax">either_or_data</span><span class="plain-syntax">) </span><span class="reserved-syntax">return</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">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">prn</span><span class="plain-syntax">-></span><span class="element-syntax">value_data</span><span class="plain-syntax">-></span><span class="element-syntax">property_value_kind</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax">}</span>
|
|
</pre>
|
|
<p class="commentary firstcommentary"><a id="SP5" class="paragraph-anchor"></a><b>§5. Nonterminals for bare property names. </b>The following are slow nonterminals, but are used only in places where speed
|
|
does not matter. They match any property name, optionally preceded by the
|
|
definite article; note that they match the name itself, not the confection
|
|
made above when the noun "... property" was entered into the lexicon.
|
|
</p>
|
|
|
|
<pre class="Preform-displayed-code all-displayed-code code-font">
|
|
<span class="Preform-function-syntax"><property-name></span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">internal</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">{</span>
|
|
<span class="Preform-plain-syntax"> </span><span class="Preform-identifier-syntax">W</span><span class="Preform-plain-syntax"> = </span><span class="Preform-identifier-syntax">Articles::remove_the</span><span class="Preform-plain-syntax">(</span><span class="Preform-identifier-syntax">W</span><span class="Preform-plain-syntax">);</span>
|
|
<span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">property</span><span class="Preform-plain-syntax"> *</span><span class="Preform-identifier-syntax">prn</span><span class="Preform-plain-syntax">;</span>
|
|
<span class="Preform-plain-syntax"> </span><span class="Preform-identifier-syntax">LOOP_OVER</span><span class="Preform-plain-syntax">(</span><span class="Preform-identifier-syntax">prn</span><span class="Preform-plain-syntax">, </span><span class="Preform-reserved-syntax">property</span><span class="Preform-plain-syntax">)</span>
|
|
<span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">if</span><span class="Preform-plain-syntax"> (</span><span class="Preform-identifier-syntax">Wordings::match</span><span class="Preform-plain-syntax">(</span><span class="Preform-identifier-syntax">W</span><span class="Preform-plain-syntax">, </span><span class="Preform-identifier-syntax">prn</span><span class="Preform-plain-syntax">-></span><span class="Preform-element-syntax">name</span><span class="Preform-plain-syntax">)) {</span>
|
|
<span class="Preform-plain-syntax"> ==> { -, </span><span class="Preform-identifier-syntax">prn</span><span class="Preform-plain-syntax"> };</span>
|
|
<span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">return</span><span class="Preform-plain-syntax"> </span><span class="Preform-identifier-syntax">Wordings::first_wn</span><span class="Preform-plain-syntax">(</span><span class="Preform-identifier-syntax">W</span><span class="Preform-plain-syntax">) + </span><span class="Preform-identifier-syntax">Wordings::length</span><span class="Preform-plain-syntax">(</span><span class="Preform-identifier-syntax">prn</span><span class="Preform-plain-syntax">-></span><span class="Preform-element-syntax">name</span><span class="Preform-plain-syntax">) - </span><span class="Preform-constant-syntax">1</span><span class="Preform-plain-syntax">;</span>
|
|
<span class="Preform-plain-syntax"> }</span>
|
|
<span class="Preform-plain-syntax"> ==> { </span><span class="Preform-identifier-syntax">fail</span><span class="Preform-plain-syntax"> </span><span class="Preform-identifier-syntax">nonterminal</span><span class="Preform-plain-syntax"> };</span>
|
|
<span class="Preform-plain-syntax">}</span>
|
|
</pre>
|
|
<ul class="endnotetexts"><li>This is <a href="../words-module/4-ap.html" class="internal">Preform grammar</a>, not regular C code.</li></ul>
|
|
<p class="commentary firstcommentary"><a id="SP6" class="paragraph-anchor"></a><b>§6. </b>With two variants, one matching only either-ors and the other only values:
|
|
</p>
|
|
|
|
<pre class="Preform-displayed-code all-displayed-code code-font">
|
|
<span class="Preform-function-syntax"><either-or-property-name></span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">internal</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">{</span>
|
|
<span class="Preform-plain-syntax"> </span><span class="Preform-identifier-syntax">W</span><span class="Preform-plain-syntax"> = </span><span class="Preform-identifier-syntax">Articles::remove_the</span><span class="Preform-plain-syntax">(</span><span class="Preform-identifier-syntax">W</span><span class="Preform-plain-syntax">);</span>
|
|
<span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">property</span><span class="Preform-plain-syntax"> *</span><span class="Preform-identifier-syntax">prn</span><span class="Preform-plain-syntax">;</span>
|
|
<span class="Preform-plain-syntax"> </span><span class="Preform-identifier-syntax">LOOP_OVER</span><span class="Preform-plain-syntax">(</span><span class="Preform-identifier-syntax">prn</span><span class="Preform-plain-syntax">, </span><span class="Preform-reserved-syntax">property</span><span class="Preform-plain-syntax">)</span>
|
|
<span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">if</span><span class="Preform-plain-syntax"> (</span><span class="Preform-identifier-syntax">prn</span><span class="Preform-plain-syntax">-></span><span class="Preform-element-syntax">either_or_data</span><span class="Preform-plain-syntax">)</span>
|
|
<span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">if</span><span class="Preform-plain-syntax"> (</span><span class="Preform-identifier-syntax">Wordings::match</span><span class="Preform-plain-syntax">(</span><span class="Preform-identifier-syntax">W</span><span class="Preform-plain-syntax">, </span><span class="Preform-identifier-syntax">prn</span><span class="Preform-plain-syntax">-></span><span class="Preform-element-syntax">name</span><span class="Preform-plain-syntax">)) {</span>
|
|
<span class="Preform-plain-syntax"> ==> { -, </span><span class="Preform-identifier-syntax">prn</span><span class="Preform-plain-syntax"> };</span>
|
|
<span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">return</span><span class="Preform-plain-syntax"> </span><span class="Preform-identifier-syntax">TRUE</span><span class="Preform-plain-syntax">;</span>
|
|
<span class="Preform-plain-syntax"> }</span>
|
|
<span class="Preform-plain-syntax"> ==> { </span><span class="Preform-identifier-syntax">fail</span><span class="Preform-plain-syntax"> </span><span class="Preform-identifier-syntax">nonterminal</span><span class="Preform-plain-syntax"> };</span>
|
|
<span class="Preform-plain-syntax">}</span>
|
|
|
|
<span class="Preform-function-syntax"><value-property-name></span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">internal</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">{</span>
|
|
<span class="Preform-plain-syntax"> </span><span class="Preform-identifier-syntax">W</span><span class="Preform-plain-syntax"> = </span><span class="Preform-identifier-syntax">Articles::remove_the</span><span class="Preform-plain-syntax">(</span><span class="Preform-identifier-syntax">W</span><span class="Preform-plain-syntax">);</span>
|
|
<span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">property</span><span class="Preform-plain-syntax"> *</span><span class="Preform-identifier-syntax">prn</span><span class="Preform-plain-syntax">;</span>
|
|
<span class="Preform-plain-syntax"> </span><span class="Preform-identifier-syntax">LOOP_OVER</span><span class="Preform-plain-syntax">(</span><span class="Preform-identifier-syntax">prn</span><span class="Preform-plain-syntax">, </span><span class="Preform-reserved-syntax">property</span><span class="Preform-plain-syntax">)</span>
|
|
<span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">if</span><span class="Preform-plain-syntax"> (</span><span class="Preform-identifier-syntax">prn</span><span class="Preform-plain-syntax">-></span><span class="Preform-element-syntax">either_or_data</span><span class="Preform-plain-syntax"> == </span><span class="Preform-identifier-syntax">NULL</span><span class="Preform-plain-syntax">)</span>
|
|
<span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">if</span><span class="Preform-plain-syntax"> (</span><span class="Preform-identifier-syntax">Wordings::match</span><span class="Preform-plain-syntax">(</span><span class="Preform-identifier-syntax">W</span><span class="Preform-plain-syntax">, </span><span class="Preform-identifier-syntax">prn</span><span class="Preform-plain-syntax">-></span><span class="Preform-element-syntax">name</span><span class="Preform-plain-syntax">)) {</span>
|
|
<span class="Preform-plain-syntax"> ==> { -, </span><span class="Preform-identifier-syntax">prn</span><span class="Preform-plain-syntax"> };</span>
|
|
<span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">return</span><span class="Preform-plain-syntax"> </span><span class="Preform-identifier-syntax">TRUE</span><span class="Preform-plain-syntax">;</span>
|
|
<span class="Preform-plain-syntax"> }</span>
|
|
<span class="Preform-plain-syntax"> ==> { </span><span class="Preform-identifier-syntax">fail</span><span class="Preform-plain-syntax"> </span><span class="Preform-identifier-syntax">nonterminal</span><span class="Preform-plain-syntax"> };</span>
|
|
<span class="Preform-plain-syntax">}</span>
|
|
</pre>
|
|
<ul class="endnotetexts"><li>This is <a href="../words-module/4-ap.html" class="internal">Preform grammar</a>, not regular C code.</li></ul>
|
|
<p class="commentary firstcommentary"><a id="SP7" class="paragraph-anchor"></a><b>§7. </b>For tiresome internal reasons, we also need a version which is voracious
|
|
(and doesn't accept the definite article):
|
|
</p>
|
|
|
|
<pre class="Preform-displayed-code all-displayed-code code-font">
|
|
<span class="Preform-function-syntax"><property-name-v></span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">internal</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">?</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">{</span>
|
|
<span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">property</span><span class="Preform-plain-syntax"> *</span><span class="Preform-identifier-syntax">prn</span><span class="Preform-plain-syntax">;</span>
|
|
<span class="Preform-plain-syntax"> </span><span class="Preform-identifier-syntax">LOOP_OVER</span><span class="Preform-plain-syntax">(</span><span class="Preform-identifier-syntax">prn</span><span class="Preform-plain-syntax">, </span><span class="Preform-reserved-syntax">property</span><span class="Preform-plain-syntax">)</span>
|
|
<span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">if</span><span class="Preform-plain-syntax"> (</span><span class="Preform-identifier-syntax">Wordings::starts_with</span><span class="Preform-plain-syntax">(</span><span class="Preform-identifier-syntax">W</span><span class="Preform-plain-syntax">, </span><span class="Preform-identifier-syntax">prn</span><span class="Preform-plain-syntax">-></span><span class="Preform-element-syntax">name</span><span class="Preform-plain-syntax">)) {</span>
|
|
<span class="Preform-plain-syntax"> ==> { -, </span><span class="Preform-identifier-syntax">prn</span><span class="Preform-plain-syntax"> };</span>
|
|
<span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">return</span><span class="Preform-plain-syntax"> </span><span class="Preform-identifier-syntax">Wordings::first_wn</span><span class="Preform-plain-syntax">(</span><span class="Preform-identifier-syntax">W</span><span class="Preform-plain-syntax">) + </span><span class="Preform-identifier-syntax">Wordings::length</span><span class="Preform-plain-syntax">(</span><span class="Preform-identifier-syntax">prn</span><span class="Preform-plain-syntax">-></span><span class="Preform-element-syntax">name</span><span class="Preform-plain-syntax">) - </span><span class="Preform-constant-syntax">1</span><span class="Preform-plain-syntax">;</span>
|
|
<span class="Preform-plain-syntax"> }</span>
|
|
<span class="Preform-plain-syntax"> ==> { </span><span class="Preform-identifier-syntax">fail</span><span class="Preform-plain-syntax"> </span><span class="Preform-identifier-syntax">nonterminal</span><span class="Preform-plain-syntax"> };</span>
|
|
<span class="Preform-plain-syntax">}</span>
|
|
</pre>
|
|
<ul class="endnotetexts"><li>This is <a href="../words-module/4-ap.html" class="internal">Preform grammar</a>, not regular C code.</li></ul>
|
|
<p class="commentary firstcommentary"><a id="SP8" class="paragraph-anchor"></a><b>§8. </b>The trickiest property names are those which syntactically look like a
|
|
value of a property and not just a name. For example, a property called
|
|
"point of view" could easily be mistaken for the "point" property of something
|
|
called "view". The following should match anything with that potential
|
|
ambiguity:
|
|
</p>
|
|
|
|
<pre class="Preform-displayed-code all-displayed-code code-font">
|
|
<span class="Preform-function-syntax"><name-looking-like-property-test></span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">::=</span>
|
|
<span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">***</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">of</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">***</span>
|
|
</pre>
|
|
<ul class="endnotetexts"><li>This is <a href="../words-module/4-ap.html" class="internal">Preform grammar</a>, not regular C code.</li></ul>
|
|
<p class="commentary firstcommentary"><a id="SP9" class="paragraph-anchor"></a><b>§9. </b>And this internal is exactly like <property-name-v> except that it only
|
|
matches ambiguous cases.
|
|
</p>
|
|
|
|
<pre class="Preform-displayed-code all-displayed-code code-font">
|
|
<span class="Preform-function-syntax"><ambiguous-property-name></span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">internal</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">?</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">{</span>
|
|
<span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">property</span><span class="Preform-plain-syntax"> *</span><span class="Preform-identifier-syntax">prn</span><span class="Preform-plain-syntax">;</span>
|
|
<span class="Preform-plain-syntax"> </span><span class="Preform-identifier-syntax">LOOP_OVER</span><span class="Preform-plain-syntax">(</span><span class="Preform-identifier-syntax">prn</span><span class="Preform-plain-syntax">, </span><span class="Preform-reserved-syntax">property</span><span class="Preform-plain-syntax">)</span>
|
|
<span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">if</span><span class="Preform-plain-syntax"> (</span><span class="Preform-identifier-syntax">prn</span><span class="Preform-plain-syntax">-></span><span class="Preform-element-syntax">has_of_in_the_name</span><span class="Preform-plain-syntax">) {</span>
|
|
<span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">if</span><span class="Preform-plain-syntax"> (</span><span class="Preform-identifier-syntax">Wordings::starts_with</span><span class="Preform-plain-syntax">(</span><span class="Preform-identifier-syntax">W</span><span class="Preform-plain-syntax">, </span><span class="Preform-identifier-syntax">prn</span><span class="Preform-plain-syntax">-></span><span class="Preform-element-syntax">name</span><span class="Preform-plain-syntax">)) {</span>
|
|
<span class="Preform-plain-syntax"> ==> { -, </span><span class="Preform-identifier-syntax">prn</span><span class="Preform-plain-syntax"> };</span>
|
|
<span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">return</span><span class="Preform-plain-syntax"> </span><span class="Preform-identifier-syntax">Wordings::first_wn</span><span class="Preform-plain-syntax">(</span><span class="Preform-identifier-syntax">W</span><span class="Preform-plain-syntax">) + </span><span class="Preform-identifier-syntax">Wordings::length</span><span class="Preform-plain-syntax">(</span><span class="Preform-identifier-syntax">prn</span><span class="Preform-plain-syntax">-></span><span class="Preform-element-syntax">name</span><span class="Preform-plain-syntax">) - </span><span class="Preform-constant-syntax">1</span><span class="Preform-plain-syntax">;</span>
|
|
<span class="Preform-plain-syntax"> }</span>
|
|
<span class="Preform-plain-syntax"> }</span>
|
|
<span class="Preform-plain-syntax"> ==> { </span><span class="Preform-identifier-syntax">fail</span><span class="Preform-plain-syntax"> </span><span class="Preform-identifier-syntax">nonterminal</span><span class="Preform-plain-syntax"> };</span>
|
|
<span class="Preform-plain-syntax">}</span>
|
|
</pre>
|
|
<ul class="endnotetexts"><li>This is <a href="../words-module/4-ap.html" class="internal">Preform grammar</a>, not regular C code.</li></ul>
|
|
<p class="commentary firstcommentary"><a id="SP10" class="paragraph-anchor"></a><b>§10. </b>The following slow function, also not used very often, is also convenient for
|
|
finding the length of the longest property name at the start of an excerpt.
|
|
(The assertion parser uses this to break text like "carrying capacity 20".)
|
|
</p>
|
|
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="function-syntax">Properties::match_longest</span><span class="plain-syntax">(</span><span class="identifier-syntax">wording</span><span class="plain-syntax"> </span><span class="identifier-syntax">W</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">maxlen</span><span class="plain-syntax"> = -1;</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">property</span><span class="plain-syntax"> *</span><span class="identifier-syntax">prn</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">LOOP_OVER</span><span class="plain-syntax">(</span><span class="identifier-syntax">prn</span><span class="plain-syntax">, </span><span class="reserved-syntax">property</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::starts_with</span><span class="plain-syntax">(</span><span class="identifier-syntax">W</span><span class="plain-syntax">, </span><span class="identifier-syntax">prn</span><span class="plain-syntax">-></span><span class="element-syntax">name</span><span class="plain-syntax">))</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">maxlen</span><span class="plain-syntax"> < </span><span class="identifier-syntax">Wordings::length</span><span class="plain-syntax">(</span><span class="identifier-syntax">prn</span><span class="plain-syntax">-></span><span class="element-syntax">name</span><span class="plain-syntax">))</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">maxlen</span><span class="plain-syntax"> = </span><span class="identifier-syntax">Wordings::length</span><span class="plain-syntax">(</span><span class="identifier-syntax">prn</span><span class="plain-syntax">-></span><span class="element-syntax">name</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">maxlen</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax">}</span>
|
|
</pre>
|
|
<p class="commentary firstcommentary"><a id="SP11" class="paragraph-anchor"></a><b>§11. Access functions. </b></p>
|
|
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="identifier-syntax">linked_list</span><span class="plain-syntax"> *</span><span class="function-syntax">Properties::get_permissions</span><button class="popup" onclick="togglePopup('usagePopup3')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup3">Usage of <span class="code-font"><span class="function-syntax">Properties::get_permissions</span></span>:<br/>Property Permissions - <a href="4-pp.html#SP2">§2</a>, <a href="4-pp.html#SP3_3">§3.3</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">property</span><span class="plain-syntax"> *</span><span class="identifier-syntax">prn</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">prn</span><span class="plain-syntax">-></span><span class="element-syntax">permissions</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax">}</span>
|
|
|
|
<span class="identifier-syntax">wording</span><span class="plain-syntax"> </span><span class="function-syntax">Properties::get_name</span><button class="popup" onclick="togglePopup('usagePopup4')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup4">Usage of <span class="code-font"><span class="function-syntax">Properties::get_name</span></span>:<br/>Same Property Relation - <a href="3-spr.html#SP2">§2</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">property</span><span class="plain-syntax"> *</span><span class="identifier-syntax">prn</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">prn</span><span class="plain-syntax"> == </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">) </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">EMPTY_WORDING</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">prn</span><span class="plain-syntax">-></span><span class="element-syntax">name</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax">}</span>
|
|
</pre>
|
|
<p class="commentary firstcommentary"><a id="SP12" class="paragraph-anchor"></a><b>§12. </b>The "possession marker" is used to keep tabs on which either/or properties
|
|
things seem to have, but only as temporary workspace: see <a href="../assertions-module/4-imp.html" class="internal">Implications (in assertions)</a>.
|
|
</p>
|
|
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="identifier-syntax">possession_marker</span><span class="plain-syntax"> *</span><span class="function-syntax">Properties::get_possession_marker</span><span class="plain-syntax">(</span><span class="reserved-syntax">property</span><span class="plain-syntax"> *</span><span class="identifier-syntax">prn</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> &(</span><span class="identifier-syntax">prn</span><span class="plain-syntax">-></span><span class="element-syntax">pom</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax">}</span>
|
|
</pre>
|
|
<p class="commentary firstcommentary"><a id="SP13" class="paragraph-anchor"></a><b>§13. </b>These are frequently used. As noted above, exactly one of <span class="extract"><span class="extract-syntax">either_or_data</span></span>
|
|
and <span class="extract"><span class="extract-syntax">value_data</span></span> is <span class="extract"><span class="extract-syntax">NULL</span></span>, so these are in fact antonyms:
|
|
</p>
|
|
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="function-syntax">Properties::is_either_or</span><button class="popup" onclick="togglePopup('usagePopup5')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup5">Usage of <span class="code-font"><span class="function-syntax">Properties::is_either_or</span></span>:<br/><a href="3-prp.html#SP17">§17</a>, <a href="3-prp.html#SP18">§18</a>, <a href="3-prp.html#SP20">§20</a><br/>Instances - <a href="2-ins.html#SP8">§8</a><br/>Property Permissions - <a href="4-pp.html#SP2">§2</a><br/>Property Inferences - <a href="5-pi.html#SP5">§5</a>, <a href="5-pi.html#SP9">§9</a>, <a href="5-pi.html#SP10">§10</a>, <a href="5-pi.html#SP11">§11</a><br/>The Model World - <a href="5-tmw.html#SP4_2">§4.2</a>, <a href="5-tmw.html#SP4_2_1_1">§4.2.1.1</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">property</span><span class="plain-syntax"> *</span><span class="identifier-syntax">prn</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> (</span><span class="identifier-syntax">prn</span><span class="plain-syntax">-></span><span class="element-syntax">either_or_data</span><span class="plain-syntax">)?</span><span class="identifier-syntax">TRUE: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="function-syntax">Properties::is_value_property</span><button class="popup" onclick="togglePopup('usagePopup6')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup6">Usage of <span class="code-font"><span class="function-syntax">Properties::is_value_property</span></span>:<br/>Same Property Relation - <a href="3-spr.html#SP2">§2</a><br/>Property Inferences - <a href="5-pi.html#SP6">§6</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">property</span><span class="plain-syntax"> *</span><span class="identifier-syntax">prn</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> (</span><span class="identifier-syntax">prn</span><span class="plain-syntax">-></span><span class="element-syntax">value_data</span><span class="plain-syntax">)?</span><span class="identifier-syntax">TRUE:FALSE</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax">}</span>
|
|
</pre>
|
|
<p class="commentary firstcommentary"><a id="SP14" class="paragraph-anchor"></a><b>§14. Logging. </b></p>
|
|
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="reserved-syntax">void</span><span class="plain-syntax"> </span><span class="function-syntax">Properties::log</span><button class="popup" onclick="togglePopup('usagePopup7')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup7">Usage of <span class="code-font"><span class="function-syntax">Properties::log</span></span>:<br/>Knowledge Module - <a href="1-km.html#SP2">§2</a>, <a href="1-km.html#SP3">§3</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">property</span><span class="plain-syntax"> *</span><span class="identifier-syntax">prn</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><a href="3-prp.html#SP14" class="function-link"><span class="function-syntax">Properties::log_basic_pname</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">prn</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">Streams::I6_escapes_enabled</span><span class="plain-syntax">(</span><span class="identifier-syntax">DL</span><span class="plain-syntax">)) || (</span><span class="identifier-syntax">prn</span><span class="plain-syntax"> == </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">)) </span><span class="reserved-syntax">return</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">prn</span><span class="plain-syntax">-></span><span class="element-syntax">either_or_data</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">property</span><span class="plain-syntax"> *</span><span class="identifier-syntax">neg</span><span class="plain-syntax"> = </span><a href="3-ep.html#SP6" class="function-link"><span class="function-syntax">EitherOrProperties::get_negation</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">prn</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">neg</span><span class="plain-syntax">) { </span><span class="identifier-syntax">LOG</span><span class="plain-syntax">(</span><span class="string-syntax">"=~"</span><span class="plain-syntax">); </span><a href="3-prp.html#SP14" class="function-link"><span class="function-syntax">Properties::log_basic_pname</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">neg</span><span class="plain-syntax">); }</span>
|
|
<span class="plain-syntax"> } </span><span class="reserved-syntax">else</span><span class="plain-syntax"> {</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">LOG</span><span class="plain-syntax">(</span><span class="string-syntax">"=%u"</span><span class="plain-syntax">, </span><a href="3-vp.html#SP6" class="function-link"><span class="function-syntax">ValueProperties::kind</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">prn</span><span class="plain-syntax">));</span>
|
|
<span class="plain-syntax"> }</span>
|
|
<span class="plain-syntax">}</span>
|
|
|
|
<span class="reserved-syntax">void</span><span class="plain-syntax"> </span><span class="function-syntax">Properties::log_basic_pname</span><span class="plain-syntax">(</span><span class="reserved-syntax">property</span><span class="plain-syntax"> *</span><span class="identifier-syntax">prn</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">prn</span><span class="plain-syntax"> == </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">) { </span><span class="identifier-syntax">LOG</span><span class="plain-syntax">(</span><span class="string-syntax">"<null-property>"</span><span class="plain-syntax">); </span><span class="reserved-syntax">return</span><span class="plain-syntax">; }</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">Wordings::nonempty</span><span class="plain-syntax">(</span><span class="identifier-syntax">prn</span><span class="plain-syntax">-></span><span class="element-syntax">name</span><span class="plain-syntax">)) { </span><span class="identifier-syntax">LOG</span><span class="plain-syntax">(</span><span class="string-syntax">"'%W'"</span><span class="plain-syntax">, </span><span class="identifier-syntax">prn</span><span class="plain-syntax">-></span><span class="element-syntax">name</span><span class="plain-syntax">); }</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">else</span><span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">prn</span><span class="plain-syntax">-></span><span class="element-syntax">compilation_data</span><span class="plain-syntax">.</span><span class="identifier-syntax">prop_iname</span><span class="plain-syntax">) { </span><span class="identifier-syntax">LOG</span><span class="plain-syntax">(</span><span class="string-syntax">"%n"</span><span class="plain-syntax">, </span><span class="identifier-syntax">prn</span><span class="plain-syntax">-></span><span class="element-syntax">compilation_data</span><span class="plain-syntax">.</span><span class="identifier-syntax">prop_iname</span><span class="plain-syntax">); }</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">else</span><span class="plain-syntax"> { </span><span class="identifier-syntax">LOG</span><span class="plain-syntax">(</span><span class="string-syntax">"nameless"</span><span class="plain-syntax">); }</span>
|
|
<span class="plain-syntax">}</span>
|
|
</pre>
|
|
<p class="commentary firstcommentary"><a id="SP15" class="paragraph-anchor"></a><b>§15. Inter translation requests. </b>This is the function which is called by the assertion parser in response
|
|
to sentences like:
|
|
</p>
|
|
|
|
<blockquote>
|
|
<p>The initial appearance property translates into Inter as "initial".</p>
|
|
</blockquote>
|
|
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="reserved-syntax">void</span><span class="plain-syntax"> </span><span class="function-syntax">Properties::translates</span><span class="plain-syntax">(</span><span class="identifier-syntax">wording</span><span class="plain-syntax"> </span><span class="identifier-syntax">W</span><span class="plain-syntax">, </span><span class="identifier-syntax">parse_node</span><span class="plain-syntax"> *</span><span class="identifier-syntax">p2</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">property</span><span class="plain-syntax"> *</span><span class="identifier-syntax">prn</span><span class="plain-syntax"> = </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="function-syntax"><property-name></span><span class="plain-syntax">(</span><span class="identifier-syntax">W</span><span class="plain-syntax">)) </span><span class="identifier-syntax">prn</span><span class="plain-syntax"> = </span><span class="function-syntax"><<rp>></span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">inchar32_t</span><span class="plain-syntax"> *</span><span class="identifier-syntax">text</span><span class="plain-syntax"> = </span><span class="identifier-syntax">Lexer::word_text</span><span class="plain-syntax">(</span><span class="identifier-syntax">Wordings::first_wn</span><span class="plain-syntax">(</span><span class="identifier-syntax">Node::get_text</span><span class="plain-syntax">(</span><span class="identifier-syntax">p2</span><span class="plain-syntax">)));</span>
|
|
|
|
<span class="plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="3-prp.html#SP15_1" class="named-paragraph-link"><span class="named-paragraph">Make sure this is a genuine property</span><span class="named-paragraph-number">15.1</span></a></span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="3-prp.html#SP15_2" class="named-paragraph-link"><span class="named-paragraph">Make sure this is a previously untranslated property</span><span class="named-paragraph-number">15.2</span></a></span><span class="plain-syntax">;</span>
|
|
|
|
<span class="plain-syntax"> </span><a href="3-prp.html#SP20" class="function-link"><span class="function-syntax">Properties::set_translation</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">prn</span><span class="plain-syntax">, </span><span class="identifier-syntax">text</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">LOGIF</span><span class="plain-syntax">(</span><span class="identifier-syntax">PROPERTY_TRANSLATIONS</span><span class="plain-syntax">, </span><span class="string-syntax">"Property <$Y> translates as <%w>\n"</span><span class="plain-syntax">, </span><span class="identifier-syntax">prn</span><span class="plain-syntax">, </span><span class="identifier-syntax">text</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">prn</span><span class="plain-syntax">-></span><span class="element-syntax">either_or_data</span><span class="plain-syntax">)</span>
|
|
<span class="plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="3-prp.html#SP15_3" class="named-paragraph-link"><span class="named-paragraph">Check to see if a sense reversal has taken place in translation</span><span class="named-paragraph-number">15.3</span></a></span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax">}</span>
|
|
</pre>
|
|
<p class="commentary firstcommentary"><a id="SP15_1" class="paragraph-anchor"></a><b>§15.1. </b><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Make sure this is a genuine property</span><span class="named-paragraph-number">15.1</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">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">prn</span><span class="plain-syntax"> == </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">StandardProblems::sentence_problem</span><span class="plain-syntax">(</span><span class="identifier-syntax">Task::syntax_tree</span><span class="plain-syntax">(),</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">_p_</span><span class="plain-syntax">(</span><span class="identifier-syntax">PM_NonPropertyTranslated</span><span class="plain-syntax">),</span>
|
|
<span class="plain-syntax"> </span><span class="string-syntax">"this property does not exist"</span><span class="plain-syntax">,</span>
|
|
<span class="plain-syntax"> </span><span class="string-syntax">"so cannot be translated."</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> }</span>
|
|
</pre>
|
|
<ul class="endnotetexts"><li>This code is used in <a href="3-prp.html#SP15">§15</a>, <a href="3-prp.html#SP16">§16</a>.</li></ul>
|
|
<p class="commentary firstcommentary"><a id="SP15_2" class="paragraph-anchor"></a><b>§15.2. </b><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Make sure this is a previously untranslated property</span><span class="named-paragraph-number">15.2</span></span><span class="comment-syntax"> =</span>
|
|
</p>
|
|
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> ((</span><span class="identifier-syntax">RTProperties::has_been_translated</span><span class="plain-syntax">(</span><span class="identifier-syntax">prn</span><span class="plain-syntax">)) &&</span>
|
|
<span class="plain-syntax"> (</span><span class="identifier-syntax">Str::eq_wide_string</span><span class="plain-syntax">(</span><span class="identifier-syntax">RTProperties::current_translation</span><span class="plain-syntax">(</span><span class="identifier-syntax">prn</span><span class="plain-syntax">), </span><span class="identifier-syntax">text</span><span class="plain-syntax">) == </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">)) {</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">StandardProblems::sentence_problem</span><span class="plain-syntax">(</span><span class="identifier-syntax">Task::syntax_tree</span><span class="plain-syntax">(),</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">_p_</span><span class="plain-syntax">(</span><span class="identifier-syntax">PM_TranslatedTwice</span><span class="plain-syntax">),</span>
|
|
<span class="plain-syntax"> </span><span class="string-syntax">"this property has already been translated"</span><span class="plain-syntax">,</span>
|
|
<span class="plain-syntax"> </span><span class="string-syntax">"so there must be some duplication somewhere."</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> }</span>
|
|
</pre>
|
|
<ul class="endnotetexts"><li>This code is used in <a href="3-prp.html#SP15">§15</a>.</li></ul>
|
|
<p class="commentary firstcommentary"><a id="SP15_3" class="paragraph-anchor"></a><b>§15.3. </b>But there is a kick in the tail, which is that translation can reverse the
|
|
run-time parity of an either/or property. The Standard Rules normally say:
|
|
</p>
|
|
|
|
<blockquote>
|
|
<p>The open property translates into Inter as "open".</p>
|
|
</blockquote>
|
|
|
|
<p class="commentary">This means that information about openness is stored as <span class="extract"><span class="extract-syntax">open</span></span> within the
|
|
template; an open door has <span class="extract"><span class="extract-syntax">open</span></span> set, for instance. If we had written:
|
|
</p>
|
|
|
|
<blockquote>
|
|
<p>The closed property translates into Inter as "open".</p>
|
|
</blockquote>
|
|
|
|
<p class="commentary">then the relevant data would still have been stored as <span class="extract"><span class="extract-syntax">open</span></span>, but with the
|
|
opposite sense; an open door would now be one with <span class="extract"><span class="extract-syntax">open</span></span> cleared.<sup id="fnref:1"><a href="#fn:1" rel="footnote">1</a></sup>
|
|
</p>
|
|
|
|
<ul class="footnotetexts"><li class="footnote" id="fn:1"><p class="inwebfootnote"><sup id="fnref:1"><a href="#fn:1" rel="footnote">1</a></sup> Of course we'd never want to do something so confusing, but the facility
|
|
exists because Inform 7 made a few either/or properties opposite in sense
|
|
to their analogous Inform 6 ones.
|
|
<a href="#fnref:1" title="return to text"> ↩</a></p></li></ul>
|
|
<p class="commentary"><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Check to see if a sense reversal has taken place in translation</span><span class="named-paragraph-number">15.3</span></span><span class="comment-syntax"> =</span>
|
|
</p>
|
|
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">property</span><span class="plain-syntax"> *</span><span class="identifier-syntax">neg</span><span class="plain-syntax"> = </span><a href="3-ep.html#SP6" class="function-link"><span class="function-syntax">EitherOrProperties::get_negation</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">prn</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">neg</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">RTProperties::store_in_negation</span><span class="plain-syntax">(</span><span class="identifier-syntax">neg</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">LOGIF</span><span class="plain-syntax">(</span><span class="identifier-syntax">PROPERTY_TRANSLATIONS</span><span class="plain-syntax">, </span><span class="string-syntax">"Storing this way round: $Y\n"</span><span class="plain-syntax">, </span><span class="identifier-syntax">prn</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> }</span>
|
|
</pre>
|
|
<ul class="endnotetexts"><li>This code is used in <a href="3-prp.html#SP15">§15</a>.</li></ul>
|
|
<p class="commentary firstcommentary"><a id="SP16" class="paragraph-anchor"></a><b>§16. </b>The much simpler affordance for making a named Inter value equal to a
|
|
property defined in source text:
|
|
</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">Properties::accessible_as</span><span class="plain-syntax">(</span><span class="identifier-syntax">wording</span><span class="plain-syntax"> </span><span class="identifier-syntax">W</span><span class="plain-syntax">, </span><span class="identifier-syntax">parse_node</span><span class="plain-syntax"> *</span><span class="identifier-syntax">p2</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">property</span><span class="plain-syntax"> *</span><span class="identifier-syntax">prn</span><span class="plain-syntax"> = </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="function-syntax"><property-name></span><span class="plain-syntax">(</span><span class="identifier-syntax">W</span><span class="plain-syntax">)) </span><span class="identifier-syntax">prn</span><span class="plain-syntax"> = </span><span class="function-syntax"><<rp>></span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="3-prp.html#SP15_1" class="named-paragraph-link"><span class="named-paragraph">Make sure this is a genuine property</span><span class="named-paragraph-number">15.1</span></a></span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">RTProperties::set_accessible</span><span class="plain-syntax">(</span><span class="identifier-syntax">prn</span><span class="plain-syntax">, </span><span class="identifier-syntax">Node::get_text</span><span class="plain-syntax">(</span><span class="identifier-syntax">p2</span><span class="plain-syntax">));</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">LOGIF</span><span class="plain-syntax">(</span><span class="identifier-syntax">PROPERTY_TRANSLATIONS</span><span class="plain-syntax">, </span><span class="string-syntax">"Property <$Y> accessible as <%W>\n"</span><span class="plain-syntax">, </span><span class="identifier-syntax">prn</span><span class="plain-syntax">, </span><span class="identifier-syntax">Node::get_text</span><span class="plain-syntax">(</span><span class="identifier-syntax">p2</span><span class="plain-syntax">));</span>
|
|
<span class="plain-syntax">}</span>
|
|
</pre>
|
|
<p class="commentary firstcommentary"><a id="SP17" class="paragraph-anchor"></a><b>§17. Compiling property values. </b>Small as it may be, this function contains two important principles: one, that
|
|
property values of something are drawn from the most specific knowledge we have
|
|
about it; and two, that if we have no knowledge of any specificity, then we fill
|
|
in a default value.
|
|
</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">Properties::compile_inferred_value</span><span class="plain-syntax">(</span><span class="identifier-syntax">value_holster</span><span class="plain-syntax"> *</span><span class="identifier-syntax">VH</span><span class="plain-syntax">, </span><span class="reserved-syntax">inference_subject</span><span class="plain-syntax"> *</span><span class="identifier-syntax">infs</span><span class="plain-syntax">,</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">property</span><span class="plain-syntax"> *</span><span class="identifier-syntax">prn</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">prn</span><span class="plain-syntax"> == </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">) || (</span><span class="identifier-syntax">RTProperties::can_be_compiled</span><span class="plain-syntax">(</span><span class="identifier-syntax">prn</span><span class="plain-syntax">) == </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">)) </span><span class="reserved-syntax">return</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">while</span><span class="plain-syntax"> (</span><span class="identifier-syntax">infs</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><a href="3-prp.html#SP18" class="function-link"><span class="function-syntax">Properties::compile_property_value_inner</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">VH</span><span class="plain-syntax">, </span><span class="identifier-syntax">infs</span><span class="plain-syntax">, </span><span class="identifier-syntax">prn</span><span class="plain-syntax">)) </span><span class="reserved-syntax">return</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">infs</span><span class="plain-syntax"> = </span><a href="4-is.html#SP11" class="function-link"><span class="function-syntax">InferenceSubjects::narrowest_broader_subject</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">infs</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> }</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><a href="3-prp.html#SP13" class="function-link"><span class="function-syntax">Properties::is_either_or</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">prn</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">Holsters::value_pair_allowed</span><span class="plain-syntax">(</span><span class="identifier-syntax">VH</span><span class="plain-syntax">))</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">Holsters::holster_pair</span><span class="plain-syntax">(</span><span class="identifier-syntax">VH</span><span class="plain-syntax">, </span><span class="identifier-syntax">InterValuePairs::number</span><span class="plain-syntax">(0));</span>
|
|
<span class="plain-syntax"> } </span><span class="reserved-syntax">else</span><span class="plain-syntax"> {</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">current_sentence</span><span class="plain-syntax"> = </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">RTProperties::compile_vp_default_value</span><span class="plain-syntax">(</span><span class="identifier-syntax">VH</span><span class="plain-syntax">, </span><span class="identifier-syntax">prn</span><span class="plain-syntax">) == </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">Problems::quote_wording</span><span class="plain-syntax">(1, </span><span class="identifier-syntax">prn</span><span class="plain-syntax">-></span><span class="element-syntax">name</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">StandardProblems::handmade_problem</span><span class="plain-syntax">(</span><span class="identifier-syntax">Task::syntax_tree</span><span class="plain-syntax">(),</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">_p_</span><span class="plain-syntax">(</span><span class="identifier-syntax">PM_PropertyUninitialisable</span><span class="plain-syntax">));</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">Problems::issue_problem_segment</span><span class="plain-syntax">(</span>
|
|
<span class="plain-syntax"> </span><span class="string-syntax">"I am unable to put any value into the property '%1', because "</span>
|
|
<span class="plain-syntax"> </span><span class="string-syntax">"it seems to have a kind of value which has no actual values."</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">Problems::issue_problem_end</span><span class="plain-syntax">();</span>
|
|
<span class="plain-syntax"> }</span>
|
|
<span class="plain-syntax"> }</span>
|
|
<span class="plain-syntax">}</span>
|
|
</pre>
|
|
<p class="commentary firstcommentary"><a id="SP18" class="paragraph-anchor"></a><b>§18. </b>Here we look for a specific subject's knowledge about our property, and if
|
|
we find it, we compile it and return <span class="extract"><span class="extract-syntax">TRUE</span></span>; if not we do nothing and return
|
|
<span class="extract"><span class="extract-syntax">FALSE</span></span>.
|
|
</p>
|
|
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="function-syntax">Properties::compile_property_value_inner</span><button class="popup" onclick="togglePopup('usagePopup8')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup8">Usage of <span class="code-font"><span class="function-syntax">Properties::compile_property_value_inner</span></span>:<br/><a href="3-prp.html#SP17">§17</a></span></button><span class="plain-syntax">(</span><span class="identifier-syntax">value_holster</span><span class="plain-syntax"> *</span><span class="identifier-syntax">VH</span><span class="plain-syntax">, </span><span class="reserved-syntax">inference_subject</span><span class="plain-syntax"> *</span><span class="identifier-syntax">infs</span><span class="plain-syntax">,</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">property</span><span class="plain-syntax"> *</span><span class="identifier-syntax">prn</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">inference</span><span class="plain-syntax"> *</span><span class="identifier-syntax">inf</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">KNOWLEDGE_LOOP</span><span class="plain-syntax">(</span><span class="identifier-syntax">inf</span><span class="plain-syntax">, </span><span class="identifier-syntax">infs</span><span class="plain-syntax">, </span><span class="identifier-syntax">property_inf</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><a href="5-inf.html#SP3" class="function-link"><span class="function-syntax">Inferences::get_inference_type</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">inf</span><span class="plain-syntax">) == </span><span class="identifier-syntax">property_inf</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">current_sentence</span><span class="plain-syntax"> = </span><a href="5-inf.html#SP3" class="function-link"><span class="function-syntax">Inferences::where_inferred</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">inf</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">sense</span><span class="plain-syntax"> = (</span><a href="5-inf.html#SP3" class="function-link"><span class="function-syntax">Inferences::get_certainty</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">inf</span><span class="plain-syntax">) > </span><span class="constant-syntax">0</span><span class="plain-syntax">)?</span><span class="identifier-syntax">TRUE:FALSE</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">property</span><span class="plain-syntax"> *</span><span class="identifier-syntax">inferred_property</span><span class="plain-syntax"> = </span><a href="5-pi.html#SP7" class="function-link"><span class="function-syntax">PropertyInferences::get_property</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">inf</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><a href="3-prp.html#SP13" class="function-link"><span class="function-syntax">Properties::is_either_or</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">prn</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">inferred_property</span><span class="plain-syntax"> == </span><span class="identifier-syntax">prn</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">Holsters::value_pair_allowed</span><span class="plain-syntax">(</span><span class="identifier-syntax">VH</span><span class="plain-syntax">))</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">Holsters::holster_pair</span><span class="plain-syntax">(</span><span class="identifier-syntax">VH</span><span class="plain-syntax">, </span><span class="identifier-syntax">InterValuePairs::number</span><span class="plain-syntax">((</span><span class="identifier-syntax">sense</span><span class="plain-syntax">)?1:0));</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">TRUE</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> }</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">inferred_property</span><span class="plain-syntax"> == </span><a href="3-ep.html#SP6" class="function-link"><span class="function-syntax">EitherOrProperties::get_negation</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">prn</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">Holsters::value_pair_allowed</span><span class="plain-syntax">(</span><span class="identifier-syntax">VH</span><span class="plain-syntax">))</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">Holsters::holster_pair</span><span class="plain-syntax">(</span><span class="identifier-syntax">VH</span><span class="plain-syntax">, </span><span class="identifier-syntax">InterValuePairs::number</span><span class="plain-syntax">((</span><span class="identifier-syntax">sense</span><span class="plain-syntax">)?0:1));</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">TRUE</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> }</span>
|
|
<span class="plain-syntax"> } </span><span class="reserved-syntax">else</span><span class="plain-syntax"> {</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">inferred_property</span><span class="plain-syntax"> == </span><span class="identifier-syntax">prn</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">sense</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">parse_node</span><span class="plain-syntax"> *</span><span class="identifier-syntax">val</span><span class="plain-syntax"> = </span><a href="5-pi.html#SP7" class="function-link"><span class="function-syntax">PropertyInferences::get_value</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">inf</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">val</span><span class="plain-syntax"> == </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">) </span><span class="identifier-syntax">internal_error</span><span class="plain-syntax">(</span><span class="string-syntax">"malformed property inference"</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">CompileValues::constant_to_holster</span><span class="plain-syntax">(</span><span class="identifier-syntax">VH</span><span class="plain-syntax">, </span><span class="identifier-syntax">val</span><span class="plain-syntax">,</span>
|
|
<span class="plain-syntax"> </span><a href="3-vp.html#SP6" class="function-link"><span class="function-syntax">ValueProperties::kind</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">inferred_property</span><span class="plain-syntax">));</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">TRUE</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> } </span><span class="reserved-syntax">else</span><span class="plain-syntax"> {</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">internal_error</span><span class="plain-syntax">(</span><span class="string-syntax">"valued property with negative certainty"</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> }</span>
|
|
<span class="plain-syntax"> }</span>
|
|
<span class="plain-syntax"> }</span>
|
|
<span class="plain-syntax"> }</span>
|
|
<span class="plain-syntax"> }</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">;</span>
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|
<span class="plain-syntax">}</span>
|
|
</pre>
|
|
<p class="commentary firstcommentary"><a id="SP19" class="paragraph-anchor"></a><b>§19. Coincidence. </b>Coincidence of kinds and properties occurs where a kind has the same name
|
|
exactly as a property, allowing the same name to be used grammatically in
|
|
two different contexts. We say that the kind and the property "coincide".
|
|
In particular, this happens with conditions:
|
|
</p>
|
|
|
|
<blockquote>
|
|
<p>Brightness is a kind of value. The brightnesses are guttering, weak, radiant and blazing. The lantern has a brightness. The lantern is blazing.</p>
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|
</blockquote>
|
|
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|
<p class="commentary">Here "brightness" becomes the name of a new kind, but "brightness" also
|
|
becomes the name of a property.
|
|
</p>
|
|
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="function-syntax">Properties::can_name_coincide_with_kind</span><button class="popup" onclick="togglePopup('usagePopup9')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup9">Usage of <span class="code-font"><span class="function-syntax">Properties::can_name_coincide_with_kind</span></span>:<br/>Valued Properties - <a href="3-vp.html#SP7">§7</a><br/>Comparative Relations - <a href="3-cr.html#SP6_1">§6.1</a></span></button><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>
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|
<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="identifier-syntax">NULL</span><span class="plain-syntax">) </span><span class="reserved-syntax">return</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">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">K</span><span class="plain-syntax">-></span><span class="identifier-syntax">construct</span><span class="plain-syntax">-></span><span class="identifier-syntax">can_coincide_with_property</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax">}</span>
|
|
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|
<span class="reserved-syntax">property</span><span class="plain-syntax"> *</span><span class="function-syntax">Properties::property_with_same_name_as</span><button class="popup" onclick="togglePopup('usagePopup10')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup10">Usage of <span class="code-font"><span class="function-syntax">Properties::property_with_same_name_as</span></span>:<br/>Instances - <a href="2-ins.html#SP4_3">§4.3</a>, <a href="2-ins.html#SP8">§8</a><br/>Instances as Adjectives - <a href="2-iaa.html#SP3">§3</a><br/>Preform for Instances - <a href="2-pfi.html#SP1">§1</a><br/>Comparative Relations - <a href="3-cr.html#SP5">§5</a>, <a href="3-cr.html#SP6_1">§6.1</a><br/>Conditions of Subjects - <a href="4-cos.html#SP3_2">§3.2</a></span></button><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="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="identifier-syntax">NULL</span><span class="plain-syntax">) </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">K</span><span class="plain-syntax">-></span><span class="identifier-syntax">construct</span><span class="plain-syntax">-></span><span class="identifier-syntax">coinciding_property</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax">}</span>
|
|
|
|
<span class="reserved-syntax">void</span><span class="plain-syntax"> </span><span class="function-syntax">Properties::mark_kind_as_having_same_name_as</span><button class="popup" onclick="togglePopup('usagePopup11')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup11">Usage of <span class="code-font"><span class="function-syntax">Properties::mark_kind_as_having_same_name_as</span></span>:<br/>Instances - <a href="2-ins.html#SP7">§7</a></span></button><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="reserved-syntax">property</span><span class="plain-syntax"> *</span><span class="identifier-syntax">P</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">K</span><span class="plain-syntax"> == </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">) </span><span class="reserved-syntax">return</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">K</span><span class="plain-syntax">-></span><span class="identifier-syntax">construct</span><span class="plain-syntax">-></span><span class="identifier-syntax">coinciding_property</span><span class="plain-syntax"> = </span><span class="identifier-syntax">P</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax">}</span>
|
|
</pre>
|
|
<p class="commentary firstcommentary"><a id="SP20" class="paragraph-anchor"></a><b>§20. Translated names of properties. </b>Some properties named in new source text need to be the same as those
|
|
defined in a kit of Inter code, and "P translates into Inter as N" will
|
|
arrange for that. Such translations can be done with one of 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">Properties::set_translation</span><button class="popup" onclick="togglePopup('usagePopup12')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup12">Usage of <span class="code-font"><span class="function-syntax">Properties::set_translation</span></span>:<br/><a href="3-prp.html#SP15">§15</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">property</span><span class="plain-syntax"> *</span><span class="identifier-syntax">prn</span><span class="plain-syntax">, </span><span class="identifier-syntax">inchar32_t</span><span class="plain-syntax"> *</span><span class="identifier-syntax">t</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">prn</span><span class="plain-syntax"> == </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">) </span><span class="identifier-syntax">internal_error</span><span class="plain-syntax">(</span><span class="string-syntax">"translation set for null property"</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> ((</span><a href="3-prp.html#SP13" class="function-link"><span class="function-syntax">Properties::is_either_or</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">prn</span><span class="plain-syntax">)) && (</span><span class="identifier-syntax">prn</span><span class="plain-syntax">-></span><span class="element-syntax">compilation_data</span><span class="plain-syntax">.</span><span class="identifier-syntax">store_in_negation</span><span class="plain-syntax">)) {</span>
|
|
<span class="plain-syntax"> </span><a href="3-prp.html#SP20" class="function-link"><span class="function-syntax">Properties::set_translation</span></a><span class="plain-syntax">(</span><a href="3-ep.html#SP6" class="function-link"><span class="function-syntax">EitherOrProperties::get_negation</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">prn</span><span class="plain-syntax">), </span><span class="identifier-syntax">t</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> }</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">TEMPORARY_TEXT</span><span class="plain-syntax">(</span><span class="identifier-syntax">T</span><span class="plain-syntax">)</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">for</span><span class="plain-syntax"> (</span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">i</span><span class="plain-syntax">=0; ((</span><span class="identifier-syntax">t</span><span class="plain-syntax">[</span><span class="identifier-syntax">i</span><span class="plain-syntax">]) && (</span><span class="identifier-syntax">i</span><span class="plain-syntax"><31)); </span><span class="identifier-syntax">i</span><span class="plain-syntax">++) {</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> ((</span><span class="identifier-syntax">Characters::isalpha</span><span class="plain-syntax">(</span><span class="identifier-syntax">t</span><span class="plain-syntax">[</span><span class="identifier-syntax">i</span><span class="plain-syntax">])) || (</span><span class="identifier-syntax">Characters::isdigit</span><span class="plain-syntax">(</span><span class="identifier-syntax">t</span><span class="plain-syntax">[</span><span class="identifier-syntax">i</span><span class="plain-syntax">])) || (</span><span class="identifier-syntax">t</span><span class="plain-syntax">[</span><span class="identifier-syntax">i</span><span class="plain-syntax">] == </span><span class="character-syntax">'_'</span><span class="plain-syntax">))</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">PUT_TO</span><span class="plain-syntax">(</span><span class="identifier-syntax">T</span><span class="plain-syntax">, </span><span class="identifier-syntax">t</span><span class="plain-syntax">[</span><span class="identifier-syntax">i</span><span class="plain-syntax">]);</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">else</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">PUT_TO</span><span class="plain-syntax">(</span><span class="identifier-syntax">T</span><span class="plain-syntax">, </span><span class="character-syntax">'_'</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> }</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">RTProperties::set_translation_and_make_available</span><span class="plain-syntax">(</span><span class="identifier-syntax">prn</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">DISCARD_TEXT</span><span class="plain-syntax">(</span><span class="identifier-syntax">T</span><span class="plain-syntax">)</span>
|
|
<span class="plain-syntax">}</span>
|
|
|
|
<span class="reserved-syntax">void</span><span class="plain-syntax"> </span><span class="function-syntax">Properties::set_translation_from_text</span><span class="plain-syntax">(</span><span class="reserved-syntax">property</span><span class="plain-syntax"> *</span><span class="identifier-syntax">prn</span><span class="plain-syntax">, </span><span class="identifier-syntax">text_stream</span><span class="plain-syntax"> *</span><span class="identifier-syntax">t</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">prn</span><span class="plain-syntax"> == </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">) </span><span class="identifier-syntax">internal_error</span><span class="plain-syntax">(</span><span class="string-syntax">"translation set for null property"</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> ((</span><a href="3-prp.html#SP13" class="function-link"><span class="function-syntax">Properties::is_either_or</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">prn</span><span class="plain-syntax">)) && (</span><span class="identifier-syntax">prn</span><span class="plain-syntax">-></span><span class="element-syntax">compilation_data</span><span class="plain-syntax">.</span><span class="identifier-syntax">store_in_negation</span><span class="plain-syntax">)) {</span>
|
|
<span class="plain-syntax"> </span><a href="3-prp.html#SP20" class="function-link"><span class="function-syntax">Properties::set_translation_from_text</span></a><span class="plain-syntax">(</span><a href="3-ep.html#SP6" class="function-link"><span class="function-syntax">EitherOrProperties::get_negation</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">prn</span><span class="plain-syntax">), </span><span class="identifier-syntax">t</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> }</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">RTProperties::iname</span><span class="plain-syntax">(</span><span class="identifier-syntax">prn</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">T</span><span class="plain-syntax">)</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">LOOP_THROUGH_TEXT</span><span class="plain-syntax">(</span><span class="identifier-syntax">pos</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">inchar32_t</span><span class="plain-syntax"> </span><span class="identifier-syntax">c</span><span class="plain-syntax"> = </span><span class="identifier-syntax">Str::get</span><span class="plain-syntax">(</span><span class="identifier-syntax">pos</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">Characters::isalpha</span><span class="plain-syntax">(</span><span class="identifier-syntax">c</span><span class="plain-syntax">)) || (</span><span class="identifier-syntax">Characters::isdigit</span><span class="plain-syntax">(</span><span class="identifier-syntax">c</span><span class="plain-syntax">)) || (</span><span class="identifier-syntax">c</span><span class="plain-syntax"> == </span><span class="character-syntax">'_'</span><span class="plain-syntax">))</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">PUT_TO</span><span class="plain-syntax">(</span><span class="identifier-syntax">T</span><span class="plain-syntax">, </span><span class="identifier-syntax">c</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">else</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">PUT_TO</span><span class="plain-syntax">(</span><span class="identifier-syntax">T</span><span class="plain-syntax">, </span><span class="character-syntax">'_'</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> }</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">Str::truncate</span><span class="plain-syntax">(</span><span class="identifier-syntax">T</span><span class="plain-syntax">, </span><span class="constant-syntax">31</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">RTProperties::set_translation</span><span class="plain-syntax">(</span><span class="identifier-syntax">prn</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">DISCARD_TEXT</span><span class="plain-syntax">(</span><span class="identifier-syntax">T</span><span class="plain-syntax">)</span>
|
|
<span class="plain-syntax">}</span>
|
|
</pre>
|
|
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