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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<title>Dialogue</title>
<link href="../docs-assets/Breadcrumbs.css" rel="stylesheet" rev="stylesheet" type="text/css">
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<main role="main">
<!--Weave of 'Dialogue' generated by Inweb-->
<div class="breadcrumbs">
<ul class="crumbs"><li><a href="../index.html">Home</a></li><li><a href="../inform7n.html">Inform7</a></li><li><a href="index.html">if</a></li><li><a href="index.html#6">Chapter 6: Dialogue</a></li><li><b>Dialogue</b></li></ul></div>
<p class="purpose">A nascent system for managing conversation.</p>
<p class="commentary firstcommentary"><a id="SP1" class="paragraph-anchor"></a><b>&#167;1. </b>This feature, <span class="extract"><span class="extract-syntax">dialogue</span></span>, is technically not part of <span class="extract"><span class="extract-syntax">if</span></span>, but it clearly
belongs in this module.
</p>
<p class="commentary">Note that a child feature called <span class="extract"><span class="extract-syntax">performance styles</span></span> &mdash; see <a href="6-ps.html" class="internal">Performance Styles</a> &mdash;
handles that kind, so it won't be dealt with in the code for this feature.
</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">Dialogue::start</span><span class="plain-syntax">(</span><span class="reserved-syntax">void</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><a href="6-dlg.html#SP10" class="function-link"><span class="function-syntax">Dialogue::declare_annotations</span></a><span class="plain-syntax">();</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">PluginCalls::plug</span><span class="plain-syntax">(</span><span class="identifier-syntax">NEW_ACTIVITY_NOTIFY_PLUG</span><span class="plain-syntax">, </span><a href="6-dlg.html#SP6" class="function-link"><span class="function-syntax">Dialogue::new_activity_notify</span></a><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">PluginCalls::plug</span><span class="plain-syntax">(</span><span class="identifier-syntax">NEW_PROPERTY_NOTIFY_PLUG</span><span class="plain-syntax">, </span><a href="6-dlg.html#SP6" class="function-link"><span class="function-syntax">Dialogue::new_property_notify</span></a><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">PluginCalls::plug</span><span class="plain-syntax">(</span><span class="identifier-syntax">NEW_BASE_KIND_NOTIFY_PLUG</span><span class="plain-syntax">, </span><a href="6-dlg.html#SP3" class="function-link"><span class="function-syntax">Dialogue::new_base_kind_notify</span></a><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">PluginCalls::plug</span><span class="plain-syntax">(</span><span class="identifier-syntax">COMPARE_CONSTANT_PLUG</span><span class="plain-syntax">, </span><a href="6-dlg.html#SP8" class="function-link"><span class="function-syntax">Dialogue::compare_CONSTANT</span></a><span class="plain-syntax">);</span>
<span class="plain-syntax">}</span>
</pre>
<p class="commentary firstcommentary"><a id="SP2" class="paragraph-anchor"></a><b>&#167;2. </b>These two kinds are both created by a Neptune file belonging to <a href="../DialogueKit/index.html" class="internal">DialogueKit</a>,
and are recognised by their Inter identifiers:
</p>
<pre class="displayed-code all-displayed-code code-font">
<span class="identifier-syntax">kind</span><span class="plain-syntax"> *</span><span class="identifier-syntax">K_dialogue_beat</span><span class="plain-syntax"> = </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">;</span>
<span class="identifier-syntax">kind</span><span class="plain-syntax"> *</span><span class="identifier-syntax">K_dialogue_line</span><span class="plain-syntax"> = </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">;</span>
<span class="identifier-syntax">kind</span><span class="plain-syntax"> *</span><span class="identifier-syntax">K_dialogue_choice</span><span class="plain-syntax"> = </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">;</span>
</pre>
<p class="commentary firstcommentary"><a id="SP3" class="paragraph-anchor"></a><b>&#167;3. </b></p>
<pre class="displayed-code all-displayed-code code-font">
<span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="function-syntax">Dialogue::new_base_kind_notify</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">Dialogue::new_base_kind_notify</span></span>:<br/><a href="6-dlg.html#SP1">&#167;1</a></span></button><span class="plain-syntax">(</span><span class="identifier-syntax">kind</span><span class="plain-syntax"> *</span><span class="identifier-syntax">new_base</span><span class="plain-syntax">, </span><span class="identifier-syntax">text_stream</span><span class="plain-syntax"> *</span><span class="identifier-syntax">name</span><span class="plain-syntax">, </span><span class="identifier-syntax">wording</span><span class="plain-syntax"> </span><span class="identifier-syntax">W</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">Str::eq_wide_string</span><span class="plain-syntax">(</span><span class="identifier-syntax">name</span><span class="plain-syntax">, </span><span class="identifier-syntax">U</span><span class="string-syntax">"DIALOGUE_BEAT_TY"</span><span class="plain-syntax">)) {</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">K_dialogue_beat</span><span class="plain-syntax"> = </span><span class="identifier-syntax">new_base</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">Str::eq_wide_string</span><span class="plain-syntax">(</span><span class="identifier-syntax">name</span><span class="plain-syntax">, </span><span class="identifier-syntax">U</span><span class="string-syntax">"DIALOGUE_LINE_TY"</span><span class="plain-syntax">)) {</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">K_dialogue_line</span><span class="plain-syntax"> = </span><span class="identifier-syntax">new_base</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">Str::eq_wide_string</span><span class="plain-syntax">(</span><span class="identifier-syntax">name</span><span class="plain-syntax">, </span><span class="identifier-syntax">U</span><span class="string-syntax">"DIALOGUE_CHOICE_TY"</span><span class="plain-syntax">)) {</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">K_dialogue_choice</span><span class="plain-syntax"> = </span><span class="identifier-syntax">new_base</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">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">;</span>
<span class="plain-syntax">}</span>
</pre>
<p class="commentary firstcommentary"><a id="SP4" class="paragraph-anchor"></a><b>&#167;4. </b>The following need some compiler support:
</p>
<pre class="displayed-code all-displayed-code code-font">
<span class="identifier-syntax">property</span><span class="plain-syntax"> *</span><span class="identifier-syntax">P_elaborated</span><span class="plain-syntax"> = </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">;</span>
<span class="identifier-syntax">property</span><span class="plain-syntax"> *</span><span class="identifier-syntax">P_performed</span><span class="plain-syntax"> = </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">;</span>
<span class="identifier-syntax">activity</span><span class="plain-syntax"> *</span><span class="identifier-syntax">AV_offering_a_dialogue_choice</span><span class="plain-syntax"> = </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">;</span>
<span class="identifier-syntax">activity</span><span class="plain-syntax"> *</span><span class="identifier-syntax">AV_performing_dialogue</span><span class="plain-syntax"> = </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">;</span>
</pre>
<p class="commentary firstcommentary"><a id="SP5" class="paragraph-anchor"></a><b>&#167;5. </b>We will need to compile code using this.
</p>
<pre class="Preform-displayed-code all-displayed-code code-font">
<span class="Preform-function-syntax">&lt;notable-dialogue-properties&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">::=</span>
<span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">elaborated</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">|</span>
<span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">performed</span>
<span class="Preform-function-syntax">&lt;notable-dialogue-activities&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">::=</span>
<span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">offering</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">|</span>
<span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">performing</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>&#167;6. </b></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">Dialogue::new_property_notify</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">Dialogue::new_property_notify</span></span>:<br/><a href="6-dlg.html#SP1">&#167;1</a></span></button><span class="plain-syntax">(</span><span class="identifier-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="function-syntax">&lt;notable-dialogue-properties&gt;(prn-&gt;</span><span class="element-syntax">name</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">&lt;&lt;r&gt;&gt;</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_elaborated</span><span class="plain-syntax"> = </span><span class="identifier-syntax">prn</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_performed</span><span class="plain-syntax"> = </span><span class="identifier-syntax">prn</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="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">int</span><span class="plain-syntax"> </span><span class="function-syntax">Dialogue::new_activity_notify</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">Dialogue::new_activity_notify</span></span>:<br/><a href="6-dlg.html#SP1">&#167;1</a></span></button><span class="plain-syntax">(</span><span class="identifier-syntax">activity</span><span class="plain-syntax"> *</span><span class="identifier-syntax">av</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">&lt;notable-dialogue-activities&gt;(av-&gt;</span><span class="element-syntax">name</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">&lt;&lt;r&gt;&gt;</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">AV_offering_a_dialogue_choice</span><span class="plain-syntax"> = </span><span class="identifier-syntax">av</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">AV_performing_dialogue</span><span class="plain-syntax"> = </span><span class="identifier-syntax">av</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="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>
</pre>
<p class="commentary firstcommentary"><a id="SP7" class="paragraph-anchor"></a><b>&#167;7. </b>The rest of this section is to some extent boiler-plate code: it provides for
specific beats and lines to be represented as rvalues, both inside the compiler
(and when typechecking) and at runtime.
</p>
<pre class="displayed-code all-displayed-code code-font">
<span class="identifier-syntax">parse_node</span><span class="plain-syntax"> *</span><span class="function-syntax">Dialogue::rvalue_from_dialogue_beat</span><span class="plain-syntax">(</span><span class="reserved-syntax">dialogue_beat</span><span class="plain-syntax"> *</span><span class="identifier-syntax">val</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">CONV_FROM</span><span class="plain-syntax">(</span><span class="reserved-syntax">dialogue_beat</span><span class="plain-syntax">, </span><span class="identifier-syntax">K_dialogue_beat</span><span class="plain-syntax">) }</span>
<span class="reserved-syntax">dialogue_beat</span><span class="plain-syntax"> *</span><span class="function-syntax">Dialogue::rvalue_to_dialogue_beat</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">Dialogue::rvalue_to_dialogue_beat</span></span>:<br/><a href="6-dlg.html#SP8">&#167;8</a></span></button><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="identifier-syntax">CONV_TO</span><span class="plain-syntax">(</span><span class="reserved-syntax">dialogue_beat</span><span class="plain-syntax">) }</span>
<span class="identifier-syntax">parse_node</span><span class="plain-syntax"> *</span><span class="function-syntax">Dialogue::rvalue_from_dialogue_line</span><span class="plain-syntax">(</span><span class="reserved-syntax">dialogue_line</span><span class="plain-syntax"> *</span><span class="identifier-syntax">val</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">CONV_FROM</span><span class="plain-syntax">(</span><span class="reserved-syntax">dialogue_line</span><span class="plain-syntax">, </span><span class="identifier-syntax">K_dialogue_line</span><span class="plain-syntax">) }</span>
<span class="reserved-syntax">dialogue_line</span><span class="plain-syntax"> *</span><span class="function-syntax">Dialogue::rvalue_to_dialogue_line</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">Dialogue::rvalue_to_dialogue_line</span></span>:<br/><a href="6-dlg.html#SP8">&#167;8</a></span></button><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="identifier-syntax">CONV_TO</span><span class="plain-syntax">(</span><span class="reserved-syntax">dialogue_line</span><span class="plain-syntax">) }</span>
<span class="identifier-syntax">parse_node</span><span class="plain-syntax"> *</span><span class="function-syntax">Dialogue::rvalue_from_dialogue_choice</span><span class="plain-syntax">(</span><span class="reserved-syntax">dialogue_choice</span><span class="plain-syntax"> *</span><span class="identifier-syntax">val</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">CONV_FROM</span><span class="plain-syntax">(</span><span class="reserved-syntax">dialogue_choice</span><span class="plain-syntax">, </span><span class="identifier-syntax">K_dialogue_choice</span><span class="plain-syntax">) }</span>
<span class="reserved-syntax">dialogue_choice</span><span class="plain-syntax"> *</span><span class="function-syntax">Dialogue::rvalue_to_dialogue_choice</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">Dialogue::rvalue_to_dialogue_choice</span></span>:<br/><a href="6-dlg.html#SP8">&#167;8</a></span></button><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="identifier-syntax">CONV_TO</span><span class="plain-syntax">(</span><span class="reserved-syntax">dialogue_choice</span><span class="plain-syntax">) }</span>
</pre>
<p class="commentary firstcommentary"><a id="SP8" class="paragraph-anchor"></a><b>&#167;8. </b>These can be compared at compile time, which means that type-checking can be
used to select phrases or rules depending on specific beats or lines.
</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">Dialogue::compare_CONSTANT</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">Dialogue::compare_CONSTANT</span></span>:<br/><a href="6-dlg.html#SP1">&#167;1</a></span></button><span class="plain-syntax">(</span><span class="identifier-syntax">parse_node</span><span class="plain-syntax"> *</span><span class="identifier-syntax">spec1</span><span class="plain-syntax">, </span><span class="identifier-syntax">parse_node</span><span class="plain-syntax"> *</span><span class="identifier-syntax">spec2</span><span class="plain-syntax">, </span><span class="reserved-syntax">int</span><span class="plain-syntax"> *</span><span class="identifier-syntax">rv</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">kind</span><span class="plain-syntax"> *</span><span class="identifier-syntax">K</span><span class="plain-syntax"> = </span><span class="identifier-syntax">Node::get_kind_of_value</span><span class="plain-syntax">(</span><span class="identifier-syntax">spec1</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">Kinds::eq</span><span class="plain-syntax">(</span><span class="identifier-syntax">K</span><span class="plain-syntax">, </span><span class="identifier-syntax">K_dialogue_beat</span><span class="plain-syntax">)) {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><a href="6-dlg.html#SP7" class="function-link"><span class="function-syntax">Dialogue::rvalue_to_dialogue_beat</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">spec1</span><span class="plain-syntax">) ==</span>
<span class="plain-syntax"> </span><a href="6-dlg.html#SP7" class="function-link"><span class="function-syntax">Dialogue::rvalue_to_dialogue_beat</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">spec2</span><span class="plain-syntax">)) {</span>
<span class="plain-syntax"> *</span><span class="identifier-syntax">rv</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="identifier-syntax">rv</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">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">Kinds::eq</span><span class="plain-syntax">(</span><span class="identifier-syntax">K</span><span class="plain-syntax">, </span><span class="identifier-syntax">K_dialogue_line</span><span class="plain-syntax">)) {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><a href="6-dlg.html#SP7" class="function-link"><span class="function-syntax">Dialogue::rvalue_to_dialogue_line</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">spec1</span><span class="plain-syntax">) ==</span>
<span class="plain-syntax"> </span><a href="6-dlg.html#SP7" class="function-link"><span class="function-syntax">Dialogue::rvalue_to_dialogue_line</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">spec2</span><span class="plain-syntax">)) {</span>
<span class="plain-syntax"> *</span><span class="identifier-syntax">rv</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="identifier-syntax">rv</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">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">Kinds::eq</span><span class="plain-syntax">(</span><span class="identifier-syntax">K</span><span class="plain-syntax">, </span><span class="identifier-syntax">K_dialogue_choice</span><span class="plain-syntax">)) {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><a href="6-dlg.html#SP7" class="function-link"><span class="function-syntax">Dialogue::rvalue_to_dialogue_choice</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">spec1</span><span class="plain-syntax">) ==</span>
<span class="plain-syntax"> </span><a href="6-dlg.html#SP7" class="function-link"><span class="function-syntax">Dialogue::rvalue_to_dialogue_choice</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">spec2</span><span class="plain-syntax">)) {</span>
<span class="plain-syntax"> *</span><span class="identifier-syntax">rv</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="identifier-syntax">rv</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">TRUE</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>
<span class="plain-syntax">}</span>
</pre>
<p class="commentary firstcommentary"><a id="SP9" class="paragraph-anchor"></a><b>&#167;9. </b>The following syntax tree annotations are used for the constant rvalues:
</p>
<pre class="definitions code-font"><span class="definition-keyword">enum</span> <span class="constant-syntax">constant_dialogue_beat_ANNOT</span><span class="plain-syntax"> </span><span class="comment-syntax"> </span><span class="extract"><span class="extract-syntax">dialogue_beat</span></span><span class="comment-syntax">: for constant values</span>
<span class="definition-keyword">enum</span> <span class="constant-syntax">constant_dialogue_line_ANNOT</span><span class="plain-syntax"> </span><span class="comment-syntax"> </span><span class="extract"><span class="extract-syntax">dialogue_line</span></span><span class="comment-syntax">: for constant values</span>
<span class="definition-keyword">enum</span> <span class="constant-syntax">constant_dialogue_choice_ANNOT</span><span class="plain-syntax"> </span><span class="comment-syntax"> </span><span class="extract"><span class="extract-syntax">dialogue_choice</span></span><span class="comment-syntax">: for constant values</span>
</pre>
<pre class="displayed-code all-displayed-code code-font">
<span class="identifier-syntax">DECLARE_ANNOTATION_FUNCTIONS</span><span class="plain-syntax">(</span><span class="identifier-syntax">constant_dialogue_beat</span><span class="plain-syntax">, </span><span class="reserved-syntax">dialogue_beat</span><span class="plain-syntax">)</span>
<span class="identifier-syntax">DECLARE_ANNOTATION_FUNCTIONS</span><span class="plain-syntax">(</span><span class="identifier-syntax">constant_dialogue_line</span><span class="plain-syntax">, </span><span class="reserved-syntax">dialogue_line</span><span class="plain-syntax">)</span>
<span class="identifier-syntax">DECLARE_ANNOTATION_FUNCTIONS</span><span class="plain-syntax">(</span><span class="identifier-syntax">constant_dialogue_choice</span><span class="plain-syntax">, </span><span class="reserved-syntax">dialogue_choice</span><span class="plain-syntax">)</span>
</pre>
<p class="commentary firstcommentary"><a id="SP10" class="paragraph-anchor"></a><b>&#167;10. </b></p>
<pre class="displayed-code all-displayed-code code-font">
<span class="identifier-syntax">MAKE_ANNOTATION_FUNCTIONS</span><span class="plain-syntax">(</span><span class="identifier-syntax">constant_dialogue_beat</span><span class="plain-syntax">, </span><span class="reserved-syntax">dialogue_beat</span><span class="plain-syntax">)</span>
<span class="identifier-syntax">MAKE_ANNOTATION_FUNCTIONS</span><span class="plain-syntax">(</span><span class="identifier-syntax">constant_dialogue_line</span><span class="plain-syntax">, </span><span class="reserved-syntax">dialogue_line</span><span class="plain-syntax">)</span>
<span class="identifier-syntax">MAKE_ANNOTATION_FUNCTIONS</span><span class="plain-syntax">(</span><span class="identifier-syntax">constant_dialogue_choice</span><span class="plain-syntax">, </span><span class="reserved-syntax">dialogue_choice</span><span class="plain-syntax">)</span>
<span class="reserved-syntax">void</span><span class="plain-syntax"> </span><span class="function-syntax">Dialogue::declare_annotations</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">Dialogue::declare_annotations</span></span>:<br/><a href="6-dlg.html#SP1">&#167;1</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">void</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">Annotations::declare_type</span><span class="plain-syntax">(</span><span class="constant-syntax">constant_dialogue_beat_ANNOT</span><span class="plain-syntax">,</span>
<span class="plain-syntax"> </span><a href="6-dlg.html#SP10" class="function-link"><span class="function-syntax">Dialogue::write_constant_dialogue_beat_ANNOT</span></a><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">Annotations::allow</span><span class="plain-syntax">(</span><span class="identifier-syntax">CONSTANT_NT</span><span class="plain-syntax">, </span><span class="constant-syntax">constant_dialogue_beat_ANNOT</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">Annotations::declare_type</span><span class="plain-syntax">(</span><span class="constant-syntax">constant_dialogue_line_ANNOT</span><span class="plain-syntax">,</span>
<span class="plain-syntax"> </span><a href="6-dlg.html#SP10" class="function-link"><span class="function-syntax">Dialogue::write_constant_dialogue_line_ANNOT</span></a><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">Annotations::allow</span><span class="plain-syntax">(</span><span class="identifier-syntax">CONSTANT_NT</span><span class="plain-syntax">, </span><span class="constant-syntax">constant_dialogue_line_ANNOT</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">Annotations::declare_type</span><span class="plain-syntax">(</span><span class="constant-syntax">constant_dialogue_choice_ANNOT</span><span class="plain-syntax">,</span>
<span class="plain-syntax"> </span><a href="6-dlg.html#SP10" class="function-link"><span class="function-syntax">Dialogue::write_constant_dialogue_choice_ANNOT</span></a><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">Annotations::allow</span><span class="plain-syntax">(</span><span class="identifier-syntax">CONSTANT_NT</span><span class="plain-syntax">, </span><span class="constant-syntax">constant_dialogue_choice_ANNOT</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">Dialogue::write_constant_dialogue_beat_ANNOT</span><span class="plain-syntax">(</span><span class="identifier-syntax">text_stream</span><span class="plain-syntax"> *</span><span class="identifier-syntax">OUT</span><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="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">Node::get_constant_dialogue_beat</span><span class="plain-syntax">(</span><span class="identifier-syntax">p</span><span class="plain-syntax">))</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">WRITE</span><span class="plain-syntax">(</span><span class="string-syntax">" {dialogue beat: %I}"</span><span class="plain-syntax">, </span><span class="identifier-syntax">Node::get_constant_dialogue_beat</span><span class="plain-syntax">(</span><span class="identifier-syntax">p</span><span class="plain-syntax">)-&gt;</span><span class="element-syntax">as_instance</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">Dialogue::write_constant_dialogue_line_ANNOT</span><span class="plain-syntax">(</span><span class="identifier-syntax">text_stream</span><span class="plain-syntax"> *</span><span class="identifier-syntax">OUT</span><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="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">Node::get_constant_dialogue_line</span><span class="plain-syntax">(</span><span class="identifier-syntax">p</span><span class="plain-syntax">))</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">WRITE</span><span class="plain-syntax">(</span><span class="string-syntax">" {dialogue line: %I}"</span><span class="plain-syntax">, </span><span class="identifier-syntax">Node::get_constant_dialogue_line</span><span class="plain-syntax">(</span><span class="identifier-syntax">p</span><span class="plain-syntax">)-&gt;</span><span class="element-syntax">as_instance</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">Dialogue::write_constant_dialogue_choice_ANNOT</span><span class="plain-syntax">(</span><span class="identifier-syntax">text_stream</span><span class="plain-syntax"> *</span><span class="identifier-syntax">OUT</span><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="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">Node::get_constant_dialogue_choice</span><span class="plain-syntax">(</span><span class="identifier-syntax">p</span><span class="plain-syntax">))</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">WRITE</span><span class="plain-syntax">(</span><span class="string-syntax">" {dialogue choice: %I}"</span><span class="plain-syntax">, </span><span class="identifier-syntax">Node::get_constant_dialogue_choice</span><span class="plain-syntax">(</span><span class="identifier-syntax">p</span><span class="plain-syntax">)-&gt;</span><span class="element-syntax">as_instance</span><span class="plain-syntax">);</span>
<span class="plain-syntax">}</span>
</pre>
<p class="commentary firstcommentary"><a id="SP11" class="paragraph-anchor"></a><b>&#167;11. </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">Dialogue::after_pass_1</span><span class="plain-syntax">(</span><span class="reserved-syntax">void</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><a href="6-db.html#SP6" class="function-link"><span class="function-syntax">DialogueBeats::decide_cue_sequencing</span></a><span class="plain-syntax">();</span>
<span class="plain-syntax"> </span><a href="6-dl.html#SP2" class="function-link"><span class="function-syntax">DialogueLines::decide_line_mentions</span></a><span class="plain-syntax">();</span>
<span class="plain-syntax"> </span><a href="6-dc.html#SP3" class="function-link"><span class="function-syntax">DialogueChoices::decide_choice_performs</span></a><span class="plain-syntax">();</span>
<span class="plain-syntax">}</span>
</pre>
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