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<ul class="crumbs"><li><a href="../index.html">Home</a></li><li><a href="../compiler.html">Inform7</a></li><li><a href="index.html">if</a></li><li><a href="index.html#4">Chapter 4: Actions</a></li><li><b>Action Name Lists</b></li></ul></div>
<p class="purpose">Action name lists are used in parsing action patterns, and identify which action names seem to be possible within them.</p>
<ul class="toc"><li><a href="4-anl.html#SP1">&#167;1. Data structure</a></li><li><a href="4-anl.html#SP11">&#167;11. Single and best actions</a></li><li><a href="4-anl.html#SP14">&#167;14. Logging</a></li><li><a href="4-anl.html#SP15">&#167;15. Parsing text to an ANL</a></li></ul><hr class="tocbar">
<p class="commentary firstcommentary"><a id="SP1" class="paragraph-anchor"></a><b>&#167;1. Data structure. </b>An ANL is a head object, an <a href="4-anl.html#SP1" class="internal">action_name_list</a>, which points to a linked
list of <a href="4-anl.html#SP3" class="internal">anl_entry</a> objects.
</p>
<pre class="displayed-code all-displayed-code code-font">
<span class="reserved-syntax">typedef</span><span class="plain-syntax"> </span><span class="reserved-syntax">struct</span><span class="plain-syntax"> </span><span class="reserved-syntax">action_name_list</span><span class="plain-syntax"> {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">struct</span><span class="plain-syntax"> </span><span class="reserved-syntax">anl_entry</span><span class="plain-syntax"> *</span><span class="identifier-syntax">entries</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">negation_state</span><span class="plain-syntax">;</span>
<span class="plain-syntax">} </span><span class="reserved-syntax">action_name_list</span><span class="plain-syntax">;</span>
<span class="reserved-syntax">action_name_list</span><span class="plain-syntax"> *</span><span class="function-syntax">ActionNameLists::new_list</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">ActionNameLists::new_list</span></span>:<br/><a href="4-anl.html#SP16">&#167;16</a>, <a href="4-anl.html#SP16_1">&#167;16.1</a>, <a href="4-anl.html#SP16_2">&#167;16.2</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">anl_entry</span><span class="plain-syntax"> *</span><span class="identifier-syntax">first</span><span class="plain-syntax">, </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">state</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">action_name_list</span><span class="plain-syntax"> *</span><span class="identifier-syntax">list</span><span class="plain-syntax"> = </span><span class="identifier-syntax">CREATE</span><span class="plain-syntax">(</span><span class="reserved-syntax">action_name_list</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">list</span><span class="plain-syntax">-&gt;</span><span class="identifier-syntax">entries</span><span class="plain-syntax"> = </span><span class="identifier-syntax">first</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">list</span><span class="plain-syntax">-&gt;</span><span class="identifier-syntax">negation_state</span><span class="plain-syntax"> = </span><span class="identifier-syntax">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">list</span><span class="plain-syntax">;</span>
<span class="plain-syntax">}</span>
</pre>
<ul class="endnotetexts"><li>The structure action_name_list is accessed in 4/ap2 and here.</li></ul>
<p class="commentary firstcommentary"><a id="SP2" class="paragraph-anchor"></a><b>&#167;2. </b>The "negation state" of a list is one of three possibilities, not two. The
difference is that "doing something other than examining the box", for example,
is <span class="extract"><span class="extract-syntax">ANL_NEGATED_LISTWISE</span></span>, whereas "doing something other than examining to the
box" is <span class="extract"><span class="extract-syntax">ANL_NEGATED_ITEMWISE</span></span>. Note that the state is set irrevocably when the
list is created.
</p>
<pre class="definitions code-font"><span class="definition-keyword">define</span> <span class="constant-syntax">ANL_POSITIVE</span><span class="plain-syntax"> </span><span class="constant-syntax">1</span>
<span class="definition-keyword">define</span> <span class="constant-syntax">ANL_NEGATED_LISTWISE</span><span class="plain-syntax"> </span><span class="constant-syntax">2</span>
<span class="definition-keyword">define</span> <span class="constant-syntax">ANL_NEGATED_ITEMWISE</span><span class="plain-syntax"> </span><span class="constant-syntax">3</span>
</pre>
<pre class="displayed-code all-displayed-code code-font">
<span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="function-syntax">ActionNameLists::listwise_negated</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">ActionNameLists::listwise_negated</span></span>:<br/><a href="4-anl.html#SP14">&#167;14</a><br/>Action Patterns - <a href="4-ap2.html#SP34_1">&#167;34.1</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">action_name_list</span><span class="plain-syntax"> *</span><span class="identifier-syntax">list</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">list</span><span class="plain-syntax">) &amp;&amp; (</span><span class="identifier-syntax">list</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">negation_state</span><span class="plain-syntax"> == </span><span class="constant-syntax">ANL_NEGATED_LISTWISE</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">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">ActionNameLists::itemwise_negated</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">ActionNameLists::itemwise_negated</span></span>:<br/><a href="4-anl.html#SP14">&#167;14</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">action_name_list</span><span class="plain-syntax"> *</span><span class="identifier-syntax">list</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">list</span><span class="plain-syntax">) &amp;&amp; (</span><span class="identifier-syntax">list</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">negation_state</span><span class="plain-syntax"> == </span><span class="constant-syntax">ANL_NEGATED_ITEMWISE</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">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">ActionNameLists::positive</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">ActionNameLists::positive</span></span>:<br/><a href="4-anl.html#SP8">&#167;8</a>, <a href="4-anl.html#SP9">&#167;9</a>, <a href="4-anl.html#SP11">&#167;11</a>, <a href="4-anl.html#SP13">&#167;13</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">action_name_list</span><span class="plain-syntax"> *</span><span class="identifier-syntax">list</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">list</span><span class="plain-syntax"> == </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">) || (</span><span class="identifier-syntax">list</span><span class="plain-syntax">-&gt;</span><span class="identifier-syntax">negation_state</span><span class="plain-syntax"> == </span><span class="constant-syntax">ANL_POSITIVE</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">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="SP3" class="paragraph-anchor"></a><b>&#167;3. </b>An entry has some book-keeping fields, and is otherwise divided into the
item itself &mdash; either an action name or a named action pattern &mdash; and some
parsing data needed by the complicated algorithms for turning text into an
action list.
</p>
<pre class="displayed-code all-displayed-code code-font">
<span class="reserved-syntax">typedef</span><span class="plain-syntax"> </span><span class="reserved-syntax">struct</span><span class="plain-syntax"> </span><span class="reserved-syntax">anl_entry</span><span class="plain-syntax"> {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">struct</span><span class="plain-syntax"> </span><span class="reserved-syntax">anl_item</span><span class="plain-syntax"> </span><span class="identifier-syntax">item</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">struct</span><span class="plain-syntax"> </span><span class="reserved-syntax">anl_parsing_data</span><span class="plain-syntax"> </span><span class="reserved-syntax">parsing_data</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">marked_for_deletion</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">struct</span><span class="plain-syntax"> </span><span class="reserved-syntax">anl_entry</span><span class="plain-syntax"> *</span><span class="identifier-syntax">next_link</span><span class="plain-syntax">; </span><span class="comment-syntax"> next in this ANL list</span>
<span class="plain-syntax">} </span><span class="reserved-syntax">anl_entry</span><span class="plain-syntax">;</span>
<span class="reserved-syntax">anl_entry</span><span class="plain-syntax"> *</span><span class="function-syntax">ActionNameLists::new_entry_at</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">ActionNameLists::new_entry_at</span></span>:<br/><a href="4-anl.html#SP16_1">&#167;16.1</a>, <a href="4-anl.html#SP17_2">&#167;17.2</a>, <a href="4-anl.html#SP19_1">&#167;19.1</a>, <a href="4-anl.html#SP19_2">&#167;19.2</a>, <a href="4-anl.html#SP21">&#167;21</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">at</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">anl_entry</span><span class="plain-syntax"> *</span><span class="identifier-syntax">new_anl</span><span class="plain-syntax"> = </span><span class="identifier-syntax">CREATE</span><span class="plain-syntax">(</span><span class="reserved-syntax">anl_entry</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">new_anl</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">item</span><span class="plain-syntax"> = </span><a href="4-anl.html#SP7" class="function-link"><span class="function-syntax">ActionNameLists::new_item</span></a><span class="plain-syntax">();</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">new_anl</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">parsing_data</span><span class="plain-syntax"> = </span><a href="4-anl.html#SP10" class="function-link"><span class="function-syntax">ActionNameLists::new_parsing_data</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">at</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">new_anl</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">marked_for_deletion</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">new_anl</span><span class="plain-syntax">;</span>
<span class="plain-syntax">}</span>
</pre>
<ul class="endnotetexts"><li>The structure anl_entry is private to this section.</li></ul>
<p class="commentary firstcommentary"><a id="SP4" class="paragraph-anchor"></a><b>&#167;4. </b>The model here is that the list can be reduced in size by marking entries
for deletion and then, subsequently, having all such entries removed. Note
that the head <a href="4-anl.html#SP1" class="internal">action_name_list</a> object remains valid even if every entry
is removed.
</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">ActionNameLists::mark_for_deletion</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">ActionNameLists::mark_for_deletion</span></span>:<br/>Action Patterns - <a href="4-ap2.html#SP26_5">&#167;26.5</a>, <a href="4-ap2.html#SP26_5_6">&#167;26.5.6</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">anl_entry</span><span class="plain-syntax"> *</span><span class="identifier-syntax">X</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">X</span><span class="plain-syntax">) </span><span class="identifier-syntax">X</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">marked_for_deletion</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="identifier-syntax">internal_error</span><span class="plain-syntax">(</span><span class="string-syntax">"tried to mark null entry for deletion"</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">ActionNameLists::marked_for_deletion</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">ActionNameLists::marked_for_deletion</span></span>:<br/>Action Patterns - <a href="4-ap2.html#SP26_5_6">&#167;26.5.6</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">anl_entry</span><span class="plain-syntax"> *</span><span class="identifier-syntax">X</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">X</span><span class="plain-syntax">) </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">X</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">marked_for_deletion</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="SP5" class="paragraph-anchor"></a><b>&#167;5. </b>This function actually does two things: deletes unwanted entries, and deletes
entries which fail to change the word position.
</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">ActionNameLists::remove_entries_marked_for_deletion</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">ActionNameLists::remove_entries_marked_for_deletion</span></span>:<br/>Action Patterns - <a href="4-ap2.html#SP26_5_7">&#167;26.5.7</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">action_name_list</span><span class="plain-syntax"> *</span><span class="identifier-syntax">list</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">list</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">pos</span><span class="plain-syntax"> = -1;</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">for</span><span class="plain-syntax"> (</span><span class="reserved-syntax">anl_entry</span><span class="plain-syntax"> *</span><span class="identifier-syntax">entry</span><span class="plain-syntax"> = </span><span class="identifier-syntax">list</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">entries</span><span class="plain-syntax">, *</span><span class="identifier-syntax">prev</span><span class="plain-syntax"> = </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">; </span><span class="identifier-syntax">entry</span><span class="plain-syntax">; </span><span class="identifier-syntax">entry</span><span class="plain-syntax"> = </span><span class="identifier-syntax">entry</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">next_link</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">entry</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">marked_for_deletion</span><span class="plain-syntax">) || (</span><span class="identifier-syntax">pos</span><span class="plain-syntax"> == </span><span class="identifier-syntax">entry</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">parsing_data</span><span class="plain-syntax">.</span><span class="element-syntax">word_position</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">prev</span><span class="plain-syntax"> == </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">) </span><span class="identifier-syntax">list</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">entries</span><span class="plain-syntax"> = </span><span class="identifier-syntax">entry</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">next_link</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">prev</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">next_link</span><span class="plain-syntax"> = </span><span class="identifier-syntax">entry</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">next_link</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">prev</span><span class="plain-syntax"> = </span><span class="identifier-syntax">entry</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">pos</span><span class="plain-syntax"> = </span><span class="identifier-syntax">entry</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">parsing_data</span><span class="plain-syntax">.</span><span class="element-syntax">word_position</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> }</span>
<span class="plain-syntax"> }</span>
<span class="plain-syntax"> }</span>
<span class="plain-syntax">}</span>
</pre>
<p class="commentary firstcommentary"><a id="SP6" class="paragraph-anchor"></a><b>&#167;6. </b>When not pruning the list, these macros are useful for working through it:
</p>
<pre class="definitions code-font"><span class="definition-keyword">define</span> <span class="identifier-syntax">LOOP_THROUGH_ANL</span><span class="plain-syntax">(</span><span class="identifier-syntax">var</span><span class="plain-syntax">, </span><span class="identifier-syntax">list</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">anl_entry</span><span class="plain-syntax"> *</span><span class="identifier-syntax">var</span><span class="plain-syntax"> = (</span><span class="identifier-syntax">list</span><span class="plain-syntax">)?(</span><span class="identifier-syntax">list</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">entries</span><span class="plain-syntax">):</span><span class="identifier-syntax">NULL</span><span class="plain-syntax">; </span><span class="identifier-syntax">var</span><span class="plain-syntax">; </span><span class="identifier-syntax">var</span><span class="plain-syntax"> = </span><span class="identifier-syntax">var</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">next_link</span><span class="plain-syntax">)</span>
<span class="definition-keyword">define</span> <span class="identifier-syntax">LOOP_THROUGH_ANL_WITH_PREV</span><span class="plain-syntax">(</span><span class="identifier-syntax">var</span><span class="plain-syntax">, </span><span class="identifier-syntax">prev_var</span><span class="plain-syntax">, </span><span class="identifier-syntax">next_var</span><span class="plain-syntax">, </span><span class="identifier-syntax">list</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">anl_entry</span><span class="plain-syntax"> *</span><span class="identifier-syntax">var</span><span class="plain-syntax"> = (</span><span class="identifier-syntax">list</span><span class="plain-syntax">)?(</span><span class="identifier-syntax">list</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">entries</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">prev_var</span><span class="plain-syntax"> = </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">, *</span><span class="identifier-syntax">next_var</span><span class="plain-syntax"> = (</span><span class="identifier-syntax">var</span><span class="plain-syntax">)?(</span><span class="identifier-syntax">var</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">next_link</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">var</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">prev_var</span><span class="plain-syntax"> = </span><span class="identifier-syntax">var</span><span class="plain-syntax">, </span><span class="identifier-syntax">var</span><span class="plain-syntax"> = </span><span class="identifier-syntax">next_var</span><span class="plain-syntax">, </span><span class="identifier-syntax">next_var</span><span class="plain-syntax"> = (</span><span class="identifier-syntax">next_var</span><span class="plain-syntax">)?(</span><span class="identifier-syntax">next_var</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">next_link</span><span class="plain-syntax">):</span><span class="identifier-syntax">NULL</span><span class="plain-syntax">)</span>
</pre>
<pre class="displayed-code all-displayed-code code-font">
<span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="function-syntax">ActionNameLists::length</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">ActionNameLists::length</span></span>:<br/><a href="4-anl.html#SP11">&#167;11</a><br/>Action Patterns - <a href="4-ap2.html#SP35">&#167;35</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">action_name_list</span><span class="plain-syntax"> *</span><span class="identifier-syntax">list</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">C</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">LOOP_THROUGH_ANL</span><span class="plain-syntax">(</span><span class="identifier-syntax">entry</span><span class="plain-syntax">, </span><span class="identifier-syntax">list</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">return</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">int</span><span class="plain-syntax"> </span><span class="function-syntax">ActionNameLists::nonempty</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">ActionNameLists::nonempty</span></span>:<br/>Action Patterns - <a href="4-ap2.html#SP4">&#167;4</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">action_name_list</span><span class="plain-syntax"> *</span><span class="identifier-syntax">list</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">list</span><span class="plain-syntax">) &amp;&amp; (</span><span class="identifier-syntax">list</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">entries</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">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 <a href="4-anl.html#SP7" class="internal">anl_item</a> material is the actual content we are trying to get at:
</p>
<pre class="displayed-code all-displayed-code code-font">
<span class="reserved-syntax">typedef</span><span class="plain-syntax"> </span><span class="reserved-syntax">struct</span><span class="plain-syntax"> </span><span class="reserved-syntax">anl_item</span><span class="plain-syntax"> {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">struct</span><span class="plain-syntax"> </span><span class="reserved-syntax">action_name</span><span class="plain-syntax"> *</span><span class="identifier-syntax">action_listed</span><span class="plain-syntax">; </span><span class="comment-syntax"> the action in this ANL list entry</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">struct</span><span class="plain-syntax"> </span><span class="reserved-syntax">named_action_pattern</span><span class="plain-syntax"> *</span><span class="identifier-syntax">nap_listed</span><span class="plain-syntax">; </span><span class="comment-syntax"> or a named pattern instead</span>
<span class="plain-syntax">} </span><span class="reserved-syntax">anl_item</span><span class="plain-syntax">;</span>
<span class="reserved-syntax">anl_item</span><span class="plain-syntax"> </span><span class="function-syntax">ActionNameLists::new_item</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">ActionNameLists::new_item</span></span>:<br/><a href="4-anl.html#SP3">&#167;3</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="reserved-syntax">anl_item</span><span class="plain-syntax"> </span><span class="identifier-syntax">item</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">item</span><span class="plain-syntax">.</span><span class="element-syntax">action_listed</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">item</span><span class="plain-syntax">.</span><span class="element-syntax">nap_listed</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">item</span><span class="plain-syntax">;</span>
<span class="plain-syntax">}</span>
<span class="reserved-syntax">anl_item</span><span class="plain-syntax"> *</span><span class="function-syntax">ActionNameLists::first_item</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">ActionNameLists::first_item</span></span>:<br/><a href="4-anl.html#SP11">&#167;11</a><br/>Action Patterns - <a href="4-ap2.html#SP4">&#167;4</a>, <a href="4-ap2.html#SP26_1">&#167;26.1</a>, <a href="4-ap2.html#SP34">&#167;34</a>, <a href="4-ap2.html#SP35">&#167;35</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">action_name_list</span><span class="plain-syntax"> *</span><span class="identifier-syntax">list</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">list</span><span class="plain-syntax">) &amp;&amp; (</span><span class="identifier-syntax">list</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">entries</span><span class="plain-syntax">)) </span><span class="reserved-syntax">return</span><span class="plain-syntax"> &amp;(</span><span class="identifier-syntax">list</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">entries</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">item</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">;</span>
<span class="plain-syntax">}</span>
</pre>
<ul class="endnotetexts"><li>The structure anl_item is accessed in 4/ap2 and here.</li></ul>
<p class="commentary firstcommentary"><a id="SP8" class="paragraph-anchor"></a><b>&#167;8. </b>The following is one of Inform's standardised comparison routines, which
takes a pair of objects A, B and returns 1 if A makes a more specific
description than B, 0 if they seem equally specific, or \(-1\) if B makes a
more specific description than A. This is transitive, and intended to be
used in sorting algorithms.
</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">ActionNameLists::compare_specificity</span><button class="popup" onclick="togglePopup('usagePopup13')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup13">Usage of <span class="code-font"><span class="function-syntax">ActionNameLists::compare_specificity</span></span>:<br/>Action Patterns - <a href="4-ap2.html#SP27">&#167;27</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">action_name_list</span><span class="plain-syntax"> *</span><span class="identifier-syntax">anl1</span><span class="plain-syntax">, </span><span class="reserved-syntax">action_name_list</span><span class="plain-syntax"> *</span><span class="identifier-syntax">anl2</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">count1</span><span class="plain-syntax">, </span><span class="identifier-syntax">count2</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">count1</span><span class="plain-syntax"> = </span><a href="4-anl.html#SP8" class="function-link"><span class="function-syntax">ActionNameLists::count_actions_covered</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">anl1</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">count2</span><span class="plain-syntax"> = </span><a href="4-anl.html#SP8" class="function-link"><span class="function-syntax">ActionNameLists::count_actions_covered</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">anl2</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">count1</span><span class="plain-syntax"> &lt; </span><span class="identifier-syntax">count2</span><span class="plain-syntax">) </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="constant-syntax">1</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">count1</span><span class="plain-syntax"> &gt; </span><span class="identifier-syntax">count2</span><span class="plain-syntax">) </span><span class="reserved-syntax">return</span><span class="plain-syntax"> -1;</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="constant-syntax">0</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">ActionNameLists::count_actions_covered</span><span class="plain-syntax">(</span><span class="reserved-syntax">action_name_list</span><span class="plain-syntax"> *</span><span class="identifier-syntax">list</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">k</span><span class="plain-syntax"> = </span><span class="constant-syntax">0</span><span class="plain-syntax">, </span><span class="identifier-syntax">infinity</span><span class="plain-syntax"> = </span><span class="identifier-syntax">NUMBER_CREATED</span><span class="plain-syntax">(</span><span class="reserved-syntax">action_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">list</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">infinity</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">list</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">entries</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">infinity</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">LOOP_THROUGH_ANL</span><span class="plain-syntax">(</span><span class="identifier-syntax">entry</span><span class="plain-syntax">, </span><span class="identifier-syntax">list</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">entry</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">item</span><span class="plain-syntax">.</span><span class="element-syntax">nap_listed</span><span class="plain-syntax">) </span><span class="reserved-syntax">continue</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">entry</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">item</span><span class="plain-syntax">.</span><span class="element-syntax">action_listed</span><span class="plain-syntax">) &amp;&amp; (</span><span class="identifier-syntax">k</span><span class="plain-syntax"> &lt; </span><span class="identifier-syntax">infinity</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">else</span><span class="plain-syntax"> </span><span class="identifier-syntax">k</span><span class="plain-syntax"> = </span><span class="identifier-syntax">infinity</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="4-anl.html#SP2" class="function-link"><span class="function-syntax">ActionNameLists::positive</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">list</span><span class="plain-syntax">) == </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">) </span><span class="identifier-syntax">k</span><span class="plain-syntax"> = </span><span class="identifier-syntax">infinity</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">return</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">named_action_pattern</span><span class="plain-syntax"> *</span><span class="function-syntax">ActionNameLists::nap</span><button class="popup" onclick="togglePopup('usagePopup14')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup14">Usage of <span class="code-font"><span class="function-syntax">ActionNameLists::nap</span></span>:<br/>Action Patterns - <a href="4-ap2.html#SP26_6">&#167;26.6</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">anl_entry</span><span class="plain-syntax"> *</span><span class="identifier-syntax">entry</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">entry</span><span class="plain-syntax">) </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">entry</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">item</span><span class="plain-syntax">.</span><span class="element-syntax">nap_listed</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">;</span>
<span class="plain-syntax">}</span>
<span class="reserved-syntax">action_name</span><span class="plain-syntax"> *</span><span class="function-syntax">ActionNameLists::action</span><button class="popup" onclick="togglePopup('usagePopup15')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup15">Usage of <span class="code-font"><span class="function-syntax">ActionNameLists::action</span></span>:<br/>Action Patterns - <a href="4-ap2.html#SP26_5_4">&#167;26.5.4</a>, <a href="4-ap2.html#SP26_5_5">&#167;26.5.5</a>, <a href="4-ap2.html#SP26_5_6">&#167;26.5.6</a>, <a href="4-ap2.html#SP26_6">&#167;26.6</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">anl_entry</span><span class="plain-syntax"> *</span><span class="identifier-syntax">entry</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">entry</span><span class="plain-syntax">) </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">entry</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">item</span><span class="plain-syntax">.</span><span class="element-syntax">action_listed</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">;</span>
<span class="plain-syntax">}</span>
</pre>
<p class="commentary firstcommentary"><a id="SP9" class="paragraph-anchor"></a><b>&#167;9. </b>A given action <span class="extract"><span class="extract-syntax">an</span></span> falls within the context of this list if it appears
positively in the list, or negatively by not falling into a category excluded
by it; for example, "examining" falls within "examining something", and also
within "doing something other than looking at something" (a case of itemwise
negation) but not "doing something other than looking".
</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">ActionNameLists::covers_action</span><button class="popup" onclick="togglePopup('usagePopup16')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup16">Usage of <span class="code-font"><span class="function-syntax">ActionNameLists::covers_action</span></span>:<br/>Action Patterns - <a href="4-ap2.html#SP4">&#167;4</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">action_name_list</span><span class="plain-syntax"> *</span><span class="identifier-syntax">list</span><span class="plain-syntax">, </span><span class="reserved-syntax">action_name</span><span class="plain-syntax"> *</span><span class="identifier-syntax">an</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">LOOP_THROUGH_ANL</span><span class="plain-syntax">(</span><span class="identifier-syntax">entry</span><span class="plain-syntax">, </span><span class="identifier-syntax">list</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">anl_item</span><span class="plain-syntax"> *</span><span class="identifier-syntax">item</span><span class="plain-syntax"> = &amp;(</span><span class="identifier-syntax">entry</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">item</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">within</span><span class="plain-syntax"> = </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">item</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">action_listed</span><span class="plain-syntax"> == </span><span class="identifier-syntax">an</span><span class="plain-syntax">) </span><span class="identifier-syntax">within</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="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">item</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">nap_listed</span><span class="plain-syntax">) </span><span class="identifier-syntax">within</span><span class="plain-syntax"> =</span>
<span class="plain-syntax"> </span><a href="4-nap.html#SP3" class="function-link"><span class="function-syntax">NamedActionPatterns::covers_action</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">item</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">nap_listed</span><span class="plain-syntax">, </span><span class="identifier-syntax">an</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">within</span><span class="plain-syntax">) &amp;&amp; (</span><a href="4-anl.html#SP2" class="function-link"><span class="function-syntax">ActionNameLists::positive</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">list</span><span class="plain-syntax">))) ||</span>
<span class="plain-syntax"> ((</span><span class="identifier-syntax">within</span><span class="plain-syntax"> == </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">) &amp;&amp; (</span><a href="4-anl.html#SP2" class="function-link"><span class="function-syntax">ActionNameLists::positive</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">list</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="SP10" class="paragraph-anchor"></a><b>&#167;10. </b>The <a href="4-anl.html#SP10" class="internal">anl_parsing_data</a> material is needed on a temporary basis when parsing
the text leading to a list:
</p>
<pre class="displayed-code all-displayed-code code-font">
<span class="reserved-syntax">typedef</span><span class="plain-syntax"> </span><span class="reserved-syntax">struct</span><span class="plain-syntax"> </span><span class="reserved-syntax">anl_parsing_data</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">word_position</span><span class="plain-syntax">; </span><span class="comment-syntax"> and some values used temporarily during parsing</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">parc</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">struct</span><span class="plain-syntax"> </span><span class="identifier-syntax">wording</span><span class="plain-syntax"> </span><span class="identifier-syntax">parameter</span><span class="plain-syntax">[2];</span>
<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">in_clause</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">abbreviation_level</span><span class="plain-syntax">; </span><span class="comment-syntax"> number of words missing</span>
<span class="plain-syntax">} </span><span class="reserved-syntax">anl_parsing_data</span><span class="plain-syntax">;</span>
<span class="reserved-syntax">anl_parsing_data</span><span class="plain-syntax"> </span><span class="function-syntax">ActionNameLists::new_parsing_data</span><button class="popup" onclick="togglePopup('usagePopup17')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup17">Usage of <span class="code-font"><span class="function-syntax">ActionNameLists::new_parsing_data</span></span>:<br/><a href="4-anl.html#SP3">&#167;3</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">at</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">anl_parsing_data</span><span class="plain-syntax"> </span><span class="reserved-syntax">parsing_data</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">parsing_data</span><span class="plain-syntax">.</span><span class="element-syntax">parc</span><span class="plain-syntax"> = </span><span class="constant-syntax">0</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">parsing_data</span><span class="plain-syntax">.</span><span class="element-syntax">word_position</span><span class="plain-syntax"> = </span><span class="identifier-syntax">at</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">parsing_data</span><span class="plain-syntax">.</span><span class="element-syntax">in_clause</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">parsing_data</span><span class="plain-syntax">.</span><span class="element-syntax">abbreviation_level</span><span class="plain-syntax"> = </span><span class="constant-syntax">0</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="reserved-syntax">parsing_data</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">ActionNameLists::parc</span><button class="popup" onclick="togglePopup('usagePopup18')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup18">Usage of <span class="code-font"><span class="function-syntax">ActionNameLists::parc</span></span>:<br/>Action Patterns - <a href="4-ap2.html#SP26_5">&#167;26.5</a>, <a href="4-ap2.html#SP26_5_1">&#167;26.5.1</a>, <a href="4-ap2.html#SP26_6">&#167;26.6</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">anl_entry</span><span class="plain-syntax"> *</span><span class="identifier-syntax">entry</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">entry</span><span class="plain-syntax">) </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">entry</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">parsing_data</span><span class="plain-syntax">.</span><span class="element-syntax">parc</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="constant-syntax">0</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">ActionNameLists::first_position</span><button class="popup" onclick="togglePopup('usagePopup19')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup19">Usage of <span class="code-font"><span class="function-syntax">ActionNameLists::first_position</span></span>:<br/>Action Patterns - <a href="4-ap2.html#SP26_5">&#167;26.5</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">action_name_list</span><span class="plain-syntax"> *</span><span class="identifier-syntax">list</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">list</span><span class="plain-syntax">) </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><a href="4-anl.html#SP10" class="function-link"><span class="function-syntax">ActionNameLists::word_position</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">list</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">entries</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> -1;</span>
<span class="plain-syntax">}</span>
<span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="function-syntax">ActionNameLists::word_position</span><button class="popup" onclick="togglePopup('usagePopup20')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup20">Usage of <span class="code-font"><span class="function-syntax">ActionNameLists::word_position</span></span>:<br/>Action Patterns - <a href="4-ap2.html#SP26_5">&#167;26.5</a>, <a href="4-ap2.html#SP26_5_1_1">&#167;26.5.1.1</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">anl_entry</span><span class="plain-syntax"> *</span><span class="identifier-syntax">entry</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">entry</span><span class="plain-syntax">) </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">entry</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">parsing_data</span><span class="plain-syntax">.</span><span class="element-syntax">word_position</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> -1;</span>
<span class="plain-syntax">}</span>
<span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="function-syntax">ActionNameLists::same_word_position</span><button class="popup" onclick="togglePopup('usagePopup21')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup21">Usage of <span class="code-font"><span class="function-syntax">ActionNameLists::same_word_position</span></span>:<br/>Action Patterns - <a href="4-ap2.html#SP26_5_6">&#167;26.5.6</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">anl_entry</span><span class="plain-syntax"> *</span><span class="identifier-syntax">entry</span><span class="plain-syntax">, </span><span class="reserved-syntax">anl_entry</span><span class="plain-syntax"> *</span><span class="identifier-syntax">Y</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">entry</span><span class="plain-syntax">) &amp;&amp; (</span><span class="identifier-syntax">Y</span><span class="plain-syntax">) &amp;&amp; (</span><span class="identifier-syntax">entry</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">parsing_data</span><span class="plain-syntax">.</span><span class="element-syntax">word_position</span><span class="plain-syntax"> == </span><span class="identifier-syntax">Y</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">parsing_data</span><span class="plain-syntax">.</span><span class="element-syntax">word_position</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">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="identifier-syntax">wording</span><span class="plain-syntax"> </span><span class="function-syntax">ActionNameLists::par</span><button class="popup" onclick="togglePopup('usagePopup22')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup22">Usage of <span class="code-font"><span class="function-syntax">ActionNameLists::par</span></span>:<br/>Action Patterns - <a href="4-ap2.html#SP26_5_4">&#167;26.5.4</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">anl_entry</span><span class="plain-syntax"> *</span><span class="identifier-syntax">entry</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">) {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> ((</span><span class="identifier-syntax">entry</span><span class="plain-syntax">) &amp;&amp; (</span><span class="identifier-syntax">entry</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">parsing_data</span><span class="plain-syntax">.</span><span class="element-syntax">parc</span><span class="plain-syntax"> &gt; </span><span class="identifier-syntax">i</span><span class="plain-syntax">)) </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">entry</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">parsing_data</span><span class="plain-syntax">.</span><span class="element-syntax">parameter</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">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="identifier-syntax">wording</span><span class="plain-syntax"> </span><span class="function-syntax">ActionNameLists::in_clause</span><button class="popup" onclick="togglePopup('usagePopup23')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup23">Usage of <span class="code-font"><span class="function-syntax">ActionNameLists::in_clause</span></span>:<br/>Action Patterns - <a href="4-ap2.html#SP26_5_4">&#167;26.5.4</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">anl_entry</span><span class="plain-syntax"> *</span><span class="identifier-syntax">entry</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">entry</span><span class="plain-syntax">) </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">entry</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">parsing_data</span><span class="plain-syntax">.</span><span class="element-syntax">in_clause</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">EMPTY_WORDING</span><span class="plain-syntax">;</span>
<span class="plain-syntax">}</span>
</pre>
<ul class="endnotetexts"><li>The structure anl_parsing_data is private to this section.</li></ul>
<p class="commentary firstcommentary"><a id="SP11" class="paragraph-anchor"></a><b>&#167;11. Single and best actions. </b>This tests whether the list gives a single positive action:
</p>
<pre class="displayed-code all-displayed-code code-font">
<span class="reserved-syntax">action_name</span><span class="plain-syntax"> *</span><span class="function-syntax">ActionNameLists::single_positive_action</span><button class="popup" onclick="togglePopup('usagePopup24')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup24">Usage of <span class="code-font"><span class="function-syntax">ActionNameLists::single_positive_action</span></span>:<br/><a href="4-anl.html#SP12">&#167;12</a><br/>Action Patterns - <a href="4-ap2.html#SP4">&#167;4</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">action_name_list</span><span class="plain-syntax"> *</span><span class="identifier-syntax">list</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> ((</span><a href="4-anl.html#SP6" class="function-link"><span class="function-syntax">ActionNameLists::length</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">list</span><span class="plain-syntax">) == </span><span class="constant-syntax">1</span><span class="plain-syntax">) &amp;&amp;</span>
<span class="plain-syntax"> (</span><a href="4-anl.html#SP2" class="function-link"><span class="function-syntax">ActionNameLists::positive</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">list</span><span class="plain-syntax">)))</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><a href="4-anl.html#SP7" class="function-link"><span class="function-syntax">ActionNameLists::first_item</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">list</span><span class="plain-syntax">)-&gt;</span><span class="element-syntax">action_listed</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">;</span>
<span class="plain-syntax">}</span>
</pre>
<p class="commentary firstcommentary"><a id="SP12" class="paragraph-anchor"></a><b>&#167;12. </b>This is used only when the list is part of an exactly known action, so
that it should contain just one item, and this should be an actual action,
not a NAP.
</p>
<pre class="displayed-code all-displayed-code code-font">
<span class="reserved-syntax">action_name</span><span class="plain-syntax"> *</span><span class="function-syntax">ActionNameLists::get_the_one_true_action</span><button class="popup" onclick="togglePopup('usagePopup25')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup25">Usage of <span class="code-font"><span class="function-syntax">ActionNameLists::get_the_one_true_action</span></span>:<br/>Action Patterns - <a href="4-ap2.html#SP29">&#167;29</a>, <a href="4-ap2.html#SP33">&#167;33</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">action_name_list</span><span class="plain-syntax"> *</span><span class="identifier-syntax">list</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">action_name</span><span class="plain-syntax"> *</span><span class="identifier-syntax">an</span><span class="plain-syntax"> = </span><a href="4-anl.html#SP11" class="function-link"><span class="function-syntax">ActionNameLists::single_positive_action</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">list</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">an</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">"Singleton ANL points to null AN"</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">an</span><span class="plain-syntax">;</span>
<span class="plain-syntax">}</span>
</pre>
<p class="commentary firstcommentary"><a id="SP13" class="paragraph-anchor"></a><b>&#167;13. </b>The "best" action is the one maximising the number of words in the fixed
part of an action name: thus if there are actions "throwing away" and
"throwing", then in the ANL arising from the text "throwing away the fish",
the action "throwing away" is better than the action "throwing".
</p>
<p class="commentary">If the list includes actions at two different word positions, so that they
are not alternate readings from the same point, then by definition there
is no best action. (For example, in "throwing or removing something".)
</p>
<pre class="displayed-code all-displayed-code code-font">
<span class="reserved-syntax">action_name</span><span class="plain-syntax"> *</span><span class="function-syntax">ActionNameLists::get_best_action</span><button class="popup" onclick="togglePopup('usagePopup26')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup26">Usage of <span class="code-font"><span class="function-syntax">ActionNameLists::get_best_action</span></span>:<br/>Action Patterns - <a href="4-ap2.html#SP26_3">&#167;26.3</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">action_name_list</span><span class="plain-syntax"> *</span><span class="identifier-syntax">list</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">posn</span><span class="plain-syntax"> = -1, </span><span class="identifier-syntax">best_score</span><span class="plain-syntax"> = -1;</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">action_name</span><span class="plain-syntax"> *</span><span class="identifier-syntax">best</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">LOGIF</span><span class="plain-syntax">(</span><span class="identifier-syntax">RULE_ATTACHMENTS</span><span class="plain-syntax">, </span><span class="string-syntax">"Getting single action from:\n$L\n"</span><span class="plain-syntax">, </span><span class="identifier-syntax">list</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><a href="4-anl.html#SP2" class="function-link"><span class="function-syntax">ActionNameLists::positive</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">list</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="identifier-syntax">NULL</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">LOOP_THROUGH_ANL</span><span class="plain-syntax">(</span><span class="identifier-syntax">entry</span><span class="plain-syntax">, </span><span class="identifier-syntax">list</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">entry</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">item</span><span class="plain-syntax">.</span><span class="element-syntax">action_listed</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">score</span><span class="plain-syntax"> = </span><a href="4-anl.html#SP13" class="function-link"><span class="function-syntax">ActionNameLists::entry_score</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">entry</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">entry</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">parsing_data</span><span class="plain-syntax">.</span><span class="element-syntax">word_position</span><span class="plain-syntax"> != </span><span class="identifier-syntax">posn</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">posn</span><span class="plain-syntax"> &gt;= </span><span class="constant-syntax">0</span><span class="plain-syntax">) </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">posn</span><span class="plain-syntax"> = </span><span class="identifier-syntax">entry</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">parsing_data</span><span class="plain-syntax">.</span><span class="element-syntax">word_position</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">best</span><span class="plain-syntax"> = </span><span class="identifier-syntax">entry</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">item</span><span class="plain-syntax">.</span><span class="element-syntax">action_listed</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">best_score</span><span class="plain-syntax"> = </span><span class="identifier-syntax">score</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">score</span><span class="plain-syntax"> &gt; </span><span class="identifier-syntax">best_score</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">best_score</span><span class="plain-syntax"> = </span><span class="identifier-syntax">score</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">best</span><span class="plain-syntax"> = </span><span class="identifier-syntax">entry</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">item</span><span class="plain-syntax">.</span><span class="element-syntax">action_listed</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="identifier-syntax">LOGIF</span><span class="plain-syntax">(</span><span class="identifier-syntax">RULE_ATTACHMENTS</span><span class="plain-syntax">, </span><span class="string-syntax">"Posn %d AN $l\n"</span><span class="plain-syntax">, </span><span class="identifier-syntax">posn</span><span class="plain-syntax">, </span><span class="identifier-syntax">best</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">best</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">ActionNameLists::entry_score</span><span class="plain-syntax">(</span><span class="reserved-syntax">anl_entry</span><span class="plain-syntax"> *</span><span class="identifier-syntax">entry</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">entry</span><span class="plain-syntax">) &amp;&amp; (</span><span class="identifier-syntax">entry</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">item</span><span class="plain-syntax">.</span><span class="element-syntax">action_listed</span><span class="plain-syntax">))</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><a href="4-ann.html#SP7" class="function-link"><span class="function-syntax">ActionNameNames::non_it_length</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">entry</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">item</span><span class="plain-syntax">.</span><span class="element-syntax">action_listed</span><span class="plain-syntax">) -</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">entry</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">parsing_data</span><span class="plain-syntax">.</span><span class="element-syntax">abbreviation_level</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> -1;</span>
<span class="plain-syntax">}</span>
</pre>
<p class="commentary firstcommentary"><a id="SP14" class="paragraph-anchor"></a><b>&#167;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">ActionNameLists::log</span><button class="popup" onclick="togglePopup('usagePopup27')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup27">Usage of <span class="code-font"><span class="function-syntax">ActionNameLists::log</span></span>:<br/>IF Module - <a href="1-im.html#SP2">&#167;2</a>, <a href="1-im.html#SP2_3">&#167;2.3</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">action_name_list</span><span class="plain-syntax"> *</span><span class="identifier-syntax">list</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">list</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">LOG</span><span class="plain-syntax">(</span><span class="string-syntax">"&lt;null-anl&gt;"</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><a href="4-anl.html#SP2" class="function-link"><span class="function-syntax">ActionNameLists::listwise_negated</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">list</span><span class="plain-syntax">)) </span><span class="identifier-syntax">LOG</span><span class="plain-syntax">(</span><span class="string-syntax">"L-NOT[ "</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><a href="4-anl.html#SP2" class="function-link"><span class="function-syntax">ActionNameLists::itemwise_negated</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">list</span><span class="plain-syntax">)) </span><span class="identifier-syntax">LOG</span><span class="plain-syntax">(</span><span class="string-syntax">"I-NOT[ "</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">c</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">LOOP_THROUGH_ANL</span><span class="plain-syntax">(</span><span class="identifier-syntax">entry</span><span class="plain-syntax">, </span><span class="identifier-syntax">list</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">"(%d). "</span><span class="plain-syntax">, </span><span class="identifier-syntax">c</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><a href="4-anl.html#SP14" class="function-link"><span class="function-syntax">ActionNameLists::log_entry</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">entry</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">c</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="4-anl.html#SP2" class="function-link"><span class="function-syntax">ActionNameLists::listwise_negated</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">list</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>
<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">ActionNameLists::log_briefly</span><button class="popup" onclick="togglePopup('usagePopup28')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup28">Usage of <span class="code-font"><span class="function-syntax">ActionNameLists::log_briefly</span></span>:<br/>Action Patterns - <a href="4-ap2.html#SP4">&#167;4</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">action_name_list</span><span class="plain-syntax"> *</span><span class="identifier-syntax">list</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">list</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">LOG</span><span class="plain-syntax">(</span><span class="string-syntax">"&lt;null-anl&gt;"</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><a href="4-anl.html#SP2" class="function-link"><span class="function-syntax">ActionNameLists::listwise_negated</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">list</span><span class="plain-syntax">)) </span><span class="identifier-syntax">LOG</span><span class="plain-syntax">(</span><span class="string-syntax">"L-NOT[ "</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><a href="4-anl.html#SP2" class="function-link"><span class="function-syntax">ActionNameLists::itemwise_negated</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">list</span><span class="plain-syntax">)) </span><span class="identifier-syntax">LOG</span><span class="plain-syntax">(</span><span class="string-syntax">"I-NOT[ "</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">c</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">LOOP_THROUGH_ANL</span><span class="plain-syntax">(</span><span class="identifier-syntax">entry</span><span class="plain-syntax">, </span><span class="identifier-syntax">list</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">c</span><span class="plain-syntax"> &gt; </span><span class="constant-syntax">0</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>
<span class="plain-syntax"> </span><a href="4-anl.html#SP14" class="function-link"><span class="function-syntax">ActionNameLists::log_entry_briefly</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">entry</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">c</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="4-anl.html#SP2" class="function-link"><span class="function-syntax">ActionNameLists::listwise_negated</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">list</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>
<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">ActionNameLists::log_entry</span><button class="popup" onclick="togglePopup('usagePopup29')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup29">Usage of <span class="code-font"><span class="function-syntax">ActionNameLists::log_entry</span></span>:<br/>IF Module - <a href="1-im.html#SP2">&#167;2</a>, <a href="1-im.html#SP2_3">&#167;2.3</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">anl_entry</span><span class="plain-syntax"> *</span><span class="identifier-syntax">entry</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">entry</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">LOG</span><span class="plain-syntax">(</span><span class="string-syntax">"&lt;null-entry&gt;"</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">"ANL entry %s(@%d): "</span><span class="plain-syntax">,</span>
<span class="plain-syntax"> (</span><span class="identifier-syntax">entry</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">marked_for_deletion</span><span class="plain-syntax">)?</span><span class="string-syntax">"(to be deleted) "</span><span class="plain-syntax">:</span><span class="string-syntax">""</span><span class="plain-syntax">,</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">entry</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">parsing_data</span><span class="plain-syntax">.</span><span class="element-syntax">word_position</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">entry</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">item</span><span class="plain-syntax">.</span><span class="element-syntax">action_listed</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">"%W"</span><span class="plain-syntax">, </span><a href="4-ann.html#SP5" class="function-link"><span class="function-syntax">ActionNameNames::tensed</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">entry</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">item</span><span class="plain-syntax">.</span><span class="element-syntax">action_listed</span><span class="plain-syntax">, </span><span class="identifier-syntax">IS_TENSE</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">entry</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">item</span><span class="plain-syntax">.</span><span class="element-syntax">nap_listed</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">"%W"</span><span class="plain-syntax">, </span><span class="identifier-syntax">Nouns::nominative_singular</span><span class="plain-syntax">(</span><span class="identifier-syntax">entry</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">item</span><span class="plain-syntax">.</span><span class="element-syntax">nap_listed</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">as_noun</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">"NULL"</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">for</span><span class="plain-syntax"> (</span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">i</span><span class="plain-syntax">=0; </span><span class="identifier-syntax">i</span><span class="function-syntax">&lt;entry-&gt;</span><span class="element-syntax">parsing_data</span><span class="plain-syntax">.</span><span class="element-syntax">parc</span><span class="plain-syntax">; </span><span class="identifier-syntax">i</span><span class="plain-syntax">++)</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">LOG</span><span class="plain-syntax">(</span><span class="string-syntax">" [%d: %W]"</span><span class="plain-syntax">, </span><span class="identifier-syntax">i</span><span class="plain-syntax">, </span><span class="identifier-syntax">entry</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">parsing_data</span><span class="plain-syntax">.</span><span class="element-syntax">parameter</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">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">Wordings::nonempty</span><span class="plain-syntax">(</span><span class="identifier-syntax">entry</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">parsing_data</span><span class="plain-syntax">.</span><span class="element-syntax">in_clause</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">" [in: %W]\n"</span><span class="plain-syntax">, </span><span class="identifier-syntax">entry</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">parsing_data</span><span class="plain-syntax">.</span><span class="element-syntax">in_clause</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">ActionNameLists::log_entry_briefly</span><span class="plain-syntax">(</span><span class="reserved-syntax">anl_entry</span><span class="plain-syntax"> *</span><span class="identifier-syntax">entry</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">entry</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">item</span><span class="plain-syntax">.</span><span class="element-syntax">nap_listed</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">"%W"</span><span class="plain-syntax">, </span><span class="identifier-syntax">Nouns::nominative_singular</span><span class="plain-syntax">(</span><span class="identifier-syntax">entry</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">item</span><span class="plain-syntax">.</span><span class="element-syntax">nap_listed</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">as_noun</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">entry</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">item</span><span class="plain-syntax">.</span><span class="element-syntax">action_listed</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">LOG</span><span class="plain-syntax">(</span><span class="string-syntax">"ANY"</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">"%W"</span><span class="plain-syntax">, </span><a href="4-ann.html#SP5" class="function-link"><span class="function-syntax">ActionNameNames::tensed</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">entry</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">item</span><span class="plain-syntax">.</span><span class="element-syntax">action_listed</span><span class="plain-syntax">, </span><span class="identifier-syntax">IS_TENSE</span><span class="plain-syntax">));</span>
<span class="plain-syntax"> }</span>
<span class="plain-syntax">}</span>
</pre>
<p class="commentary firstcommentary"><a id="SP15" class="paragraph-anchor"></a><b>&#167;15. Parsing text to an ANL. </b></p>
<pre class="displayed-code all-displayed-code code-font">
<span class="reserved-syntax">anl_entry</span><span class="plain-syntax"> *</span><span class="identifier-syntax">anl_being_parsed</span><span class="plain-syntax"> = </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">;</span>
</pre>
<p class="commentary firstcommentary"><a id="SP16" class="paragraph-anchor"></a><b>&#167;16. </b>The following handles action name lists, such as:
</p>
<blockquote>
<p>doing something other than waiting</p>
</blockquote>
<blockquote>
<p>taking or dropping the box</p>
</blockquote>
<p class="commentary">At this stage in parsing, we are identifying possible actions, and
what their possible operands are, but we aren't trying to parse those
operands.
</p>
<pre class="Preform-displayed-code all-displayed-code code-font">
<span class="Preform-function-syntax">&lt;action-list&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">doing</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">something/anything</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">other</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">than</span><span class="Preform-plain-syntax"> </span><span class="Preform-function-syntax">&lt;anl-excluded&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">|</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==&gt;</span><span class="Preform-plain-syntax"> { FALSE, RP[1] }</span>
<span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">doing</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">something/anything</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">except</span><span class="Preform-plain-syntax"> </span><span class="Preform-function-syntax">&lt;anl-excluded&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">|</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==&gt;</span><span class="Preform-plain-syntax"> { FALSE, RP[1] }</span>
<span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">doing</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">something/anything</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">to/with</span><span class="Preform-plain-syntax"> </span><span class="Preform-function-syntax">&lt;anl-to-tail&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">|</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==&gt;</span><span class="Preform-plain-syntax"> { TRUE, ActionNameLists::new_list(RP[1], ANL_POSITIVE) }</span>
<span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">doing</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">something/anything</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">|</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==&gt;</span><span class="Preform-plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="4-anl.html#SP16_1" class="named-paragraph-link"><span class="named-paragraph">Construct ANL for anything</span><span class="named-paragraph-number">16.1</span></a></span>
<span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">doing</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">something/anything</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">...</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">|</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==&gt;</span><span class="Preform-plain-syntax"> { fail }</span>
<span class="Preform-plain-syntax"> </span><span class="Preform-function-syntax">&lt;anl&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==&gt;</span><span class="Preform-plain-syntax"> { TRUE, ActionNameLists::new_list(RP[1], ANL_POSITIVE) }</span>
<span class="Preform-function-syntax">&lt;anl-excluded&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">::=</span>
<span class="Preform-plain-syntax"> </span><span class="Preform-function-syntax">&lt;anl&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">to/with</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">{&lt;anl-minimal-common-operand&gt;}</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">|</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==&gt;</span><span class="Preform-plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="4-anl.html#SP16_2" class="named-paragraph-link"><span class="named-paragraph">Add to-clause to excluded ANL</span><span class="named-paragraph-number">16.2</span></a></span><span class="Preform-constant-syntax">;</span>
<span class="Preform-plain-syntax"> </span><span class="Preform-function-syntax">&lt;anl&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==&gt;</span><span class="Preform-plain-syntax"> { TRUE, ActionNameLists::new_list(RP[1], ANL_NEGATED_LISTWISE) }</span>
<span class="Preform-function-syntax">&lt;anl-minimal-common-operand&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">_,/or</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">...</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">|</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==&gt;</span><span class="Preform-plain-syntax"> { fail }</span>
<span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">...</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">to/with</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">...</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">|</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==&gt;</span><span class="Preform-plain-syntax"> { fail }</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="SP16_1" class="paragraph-anchor"></a><b>&#167;16.1. </b><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Construct ANL for anything</span><span class="named-paragraph-number">16.1</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">anl_entry</span><span class="plain-syntax"> *</span><span class="identifier-syntax">anl</span><span class="plain-syntax"> = </span><a href="4-anl.html#SP3" class="function-link"><span class="function-syntax">ActionNameLists::new_entry_at</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">Wordings::first_wn</span><span class="plain-syntax">(</span><span class="identifier-syntax">W</span><span class="plain-syntax">));</span>
<span class="plain-syntax"> ==&gt; { </span><span class="identifier-syntax">TRUE</span><span class="plain-syntax">, </span><a href="4-anl.html#SP1" class="function-link"><span class="function-syntax">ActionNameLists::new_list</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">anl</span><span class="plain-syntax">, </span><span class="constant-syntax">ANL_POSITIVE</span><span class="plain-syntax">) };</span>
</pre>
<ul class="endnotetexts"><li>This code is used in <a href="4-anl.html#SP16">&#167;16</a>.</li></ul>
<p class="commentary firstcommentary"><a id="SP17" class="paragraph-anchor"></a><b>&#167;17. </b>The trickiest form is:
</p>
<blockquote>
<p>doing something to the box in the dining room</p>
</blockquote>
<p class="commentary">where no explicit action occurs at all, but we have to parse the rest of
the text as if it does, including an "in" clause.
</p>
<p class="commentary">So the following finds the first "in" within its range of words, except that
it throws out an "in" that we consider bogus for our own syntactic purposes:
for instance, we don't want to count the "in" from "fixed in place".
</p>
<pre class="Preform-displayed-code all-displayed-code code-font">
<span class="Preform-function-syntax">&lt;anl-to-tail&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">::=</span>
<span class="Preform-plain-syntax"> </span><span class="Preform-function-syntax">&lt;anl-operand&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-function-syntax">&lt;anl-in-tail&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">|</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==&gt;</span><span class="Preform-plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="4-anl.html#SP17_1" class="named-paragraph-link"><span class="named-paragraph">Augment ANL with in clause</span><span class="named-paragraph-number">17.1</span></a></span>
<span class="Preform-plain-syntax"> </span><span class="Preform-function-syntax">&lt;anl-operand&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==&gt;</span><span class="Preform-plain-syntax"> { pass 1 }</span>
<span class="Preform-function-syntax">&lt;anl-operand&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">::=</span>
<span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">...</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==&gt;</span><span class="Preform-plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="4-anl.html#SP17_2" class="named-paragraph-link"><span class="named-paragraph">Construct ANL for anything applied</span><span class="named-paragraph-number">17.2</span></a></span>
<span class="Preform-function-syntax">&lt;anl-in-tail&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">fixed</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">in</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">place</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">***</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">|</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==&gt;</span><span class="Preform-plain-syntax"> { advance Wordings::delta(WR[1], W) }</span>
<span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">is/are/was/were/been/listed</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">in</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">***</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">|</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==&gt;</span><span class="Preform-plain-syntax"> { advance Wordings::delta(WR[1], W) }</span>
<span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">in</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">...</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==&gt;</span><span class="Preform-plain-syntax"> { TRUE, - }</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="SP17_1" class="paragraph-anchor"></a><b>&#167;17.1. </b><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Augment ANL with in clause</span><span class="named-paragraph-number">17.1</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">anl_entry</span><span class="plain-syntax"> *</span><span class="identifier-syntax">anl</span><span class="plain-syntax"> = </span><span class="identifier-syntax">RP</span><span class="plain-syntax">[1];</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">anl</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">parsing_data</span><span class="plain-syntax">.</span><span class="element-syntax">in_clause</span><span class="plain-syntax"> = </span><span class="identifier-syntax">GET_RW</span><span class="plain-syntax">(</span><span class="function-syntax">&lt;anl-in-tail&gt;</span><span class="plain-syntax">, </span><span class="constant-syntax">1</span><span class="plain-syntax">);</span>
</pre>
<ul class="endnotetexts"><li>This code is used in <a href="4-anl.html#SP17">&#167;17</a>.</li></ul>
<p class="commentary firstcommentary"><a id="SP17_2" class="paragraph-anchor"></a><b>&#167;17.2. </b><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Construct ANL for anything applied</span><span class="named-paragraph-number">17.2</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">anl_entry</span><span class="plain-syntax"> *</span><span class="identifier-syntax">new_anl</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">preform_lookahead_mode</span><span class="plain-syntax">) &amp;&amp; (</span><span class="identifier-syntax">anl_being_parsed</span><span class="plain-syntax">)) </span><span class="identifier-syntax">new_anl</span><span class="plain-syntax"> = </span><span class="identifier-syntax">anl_being_parsed</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">new_anl</span><span class="plain-syntax"> = </span><a href="4-anl.html#SP3" class="function-link"><span class="function-syntax">ActionNameLists::new_entry_at</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">Wordings::first_wn</span><span class="plain-syntax">(</span><span class="identifier-syntax">W</span><span class="plain-syntax">));</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">new_anl</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">parsing_data</span><span class="plain-syntax">.</span><span class="element-syntax">parameter</span><span class="plain-syntax">[</span><span class="identifier-syntax">new_anl</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">parsing_data</span><span class="plain-syntax">.</span><span class="element-syntax">parc</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">new_anl</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">parsing_data</span><span class="plain-syntax">.</span><span class="element-syntax">parc</span><span class="plain-syntax">++;</span>
<span class="plain-syntax"> ==&gt; { </span><span class="identifier-syntax">TRUE</span><span class="plain-syntax">, </span><span class="identifier-syntax">new_anl</span><span class="plain-syntax"> };</span>
</pre>
<ul class="endnotetexts"><li>This code is used in <a href="4-anl.html#SP17">&#167;17</a>.</li></ul>
<p class="commentary firstcommentary"><a id="SP18" class="paragraph-anchor"></a><b>&#167;18. </b>Now for the basic list of actions being included:
</p>
<pre class="Preform-displayed-code all-displayed-code code-font">
<span class="Preform-function-syntax">&lt;anl&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">::=</span>
<span class="Preform-plain-syntax"> </span><span class="Preform-function-syntax">&lt;anl-entry&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-function-syntax">&lt;anl-tail&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">|</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==&gt;</span><span class="Preform-plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="4-anl.html#SP18_1" class="named-paragraph-link"><span class="named-paragraph">Join parsed ANLs</span><span class="named-paragraph-number">18.1</span></a></span>
<span class="Preform-plain-syntax"> </span><span class="Preform-function-syntax">&lt;anl-entry&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==&gt;</span><span class="Preform-plain-syntax"> { pass 1 }</span>
<span class="Preform-function-syntax">&lt;anl-tail&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">,</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">_or</span><span class="Preform-plain-syntax"> </span><span class="Preform-function-syntax">&lt;anl&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">|</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==&gt;</span><span class="Preform-plain-syntax"> { pass 1 }</span>
<span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">_,/or</span><span class="Preform-plain-syntax"> </span><span class="Preform-function-syntax">&lt;anl&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==&gt;</span><span class="Preform-plain-syntax"> { pass 1 }</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="SP19" class="paragraph-anchor"></a><b>&#167;19. </b>Which reduces us to an internal nonterminal for an entry in this list.
It actually produces multiple matches: for example,
</p>
<blockquote>
<p>taking inventory</p>
</blockquote>
<p class="commentary">will result in a list of two possibilities &mdash; "taking inventory", the
action, with no operand; and "taking", the action, applied to the
operand "inventory". (It's unlikely that the last will succeed in the
end, but it's syntactically valid.)
</p>
<pre class="Preform-displayed-code all-displayed-code code-font">
<span class="Preform-function-syntax">&lt;anl-entry&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">::=</span>
<span class="Preform-plain-syntax"> </span><span class="Preform-function-syntax">&lt;named-action-pattern&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">|</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==&gt;</span><span class="Preform-plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="4-anl.html#SP19_1" class="named-paragraph-link"><span class="named-paragraph">Make an action pattern from named behaviour</span><span class="named-paragraph-number">19.1</span></a></span>
<span class="Preform-plain-syntax"> </span><span class="Preform-function-syntax">&lt;named-action-pattern&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-function-syntax">&lt;anl-in-tail&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">|</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==&gt;</span><span class="Preform-plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="4-anl.html#SP19_2" class="named-paragraph-link"><span class="named-paragraph">Make an action pattern from named behaviour plus in</span><span class="named-paragraph-number">19.2</span></a></span>
<span class="Preform-plain-syntax"> </span><span class="Preform-function-syntax">&lt;anl-entry-with-action&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==&gt;</span><span class="Preform-plain-syntax"> { pass 1 }</span>
<span class="Preform-function-syntax">&lt;named-action-pattern&gt;</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-reserved-syntax">named_action_pattern</span><span class="Preform-plain-syntax"> *</span><span class="Preform-identifier-syntax">nap</span><span class="Preform-plain-syntax"> = </span><a href="4-nap.html#SP2" class="function-link"><span class="Preform-function-syntax">NamedActionPatterns::by_name</span></a><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">if</span><span class="Preform-plain-syntax"> (</span><span class="Preform-identifier-syntax">nap</span><span class="Preform-plain-syntax">) {</span>
<span class="Preform-plain-syntax"> ==&gt; { -, </span><span class="Preform-identifier-syntax">nap</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"> ==&gt; { </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">&lt;anl-entry-with-action&gt;</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-reserved-syntax">anl_entry</span><span class="Preform-plain-syntax"> *</span><span class="Preform-identifier-syntax">anl</span><span class="Preform-plain-syntax"> = </span><a href="4-anl.html#SP21" class="function-link"><span class="Preform-function-syntax">ActionNameLists::anl_parse_internal</span></a><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">if</span><span class="Preform-plain-syntax"> (</span><span class="Preform-identifier-syntax">anl</span><span class="Preform-plain-syntax">) {</span>
<span class="Preform-plain-syntax"> ==&gt; { -, </span><span class="Preform-identifier-syntax">anl</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"> ==&gt; { </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="SP19_1" class="paragraph-anchor"></a><b>&#167;19.1. </b><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Make an action pattern from named behaviour</span><span class="named-paragraph-number">19.1</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">anl_entry</span><span class="plain-syntax"> *</span><span class="identifier-syntax">new_anl</span><span class="plain-syntax"> = </span><a href="4-anl.html#SP3" class="function-link"><span class="function-syntax">ActionNameLists::new_entry_at</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">Wordings::first_wn</span><span class="plain-syntax">(</span><span class="identifier-syntax">W</span><span class="plain-syntax">));</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">new_anl</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">item</span><span class="plain-syntax">.</span><span class="element-syntax">nap_listed</span><span class="plain-syntax"> = </span><span class="identifier-syntax">RP</span><span class="plain-syntax">[1];</span>
<span class="plain-syntax"> ==&gt; { </span><span class="constant-syntax">0</span><span class="plain-syntax">, </span><span class="identifier-syntax">new_anl</span><span class="plain-syntax"> };</span>
</pre>
<ul class="endnotetexts"><li>This code is used in <a href="4-anl.html#SP19">&#167;19</a>.</li></ul>
<p class="commentary firstcommentary"><a id="SP19_2" class="paragraph-anchor"></a><b>&#167;19.2. </b><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Make an action pattern from named behaviour plus in</span><span class="named-paragraph-number">19.2</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">anl_entry</span><span class="plain-syntax"> *</span><span class="identifier-syntax">new_anl</span><span class="plain-syntax"> = </span><a href="4-anl.html#SP3" class="function-link"><span class="function-syntax">ActionNameLists::new_entry_at</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">Wordings::first_wn</span><span class="plain-syntax">(</span><span class="identifier-syntax">W</span><span class="plain-syntax">));</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">new_anl</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">item</span><span class="plain-syntax">.</span><span class="element-syntax">nap_listed</span><span class="plain-syntax"> = </span><span class="identifier-syntax">RP</span><span class="plain-syntax">[1];</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">new_anl</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">parsing_data</span><span class="plain-syntax">.</span><span class="element-syntax">in_clause</span><span class="plain-syntax"> = </span><span class="identifier-syntax">GET_RW</span><span class="plain-syntax">(</span><span class="function-syntax">&lt;anl-in-tail&gt;</span><span class="plain-syntax">, </span><span class="constant-syntax">1</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> ==&gt; { </span><span class="constant-syntax">0</span><span class="plain-syntax">, </span><span class="identifier-syntax">new_anl</span><span class="plain-syntax"> };</span>
</pre>
<ul class="endnotetexts"><li>This code is used in <a href="4-anl.html#SP19">&#167;19</a>.</li></ul>
<p class="commentary firstcommentary"><a id="SP16_2" class="paragraph-anchor"></a><b>&#167;16.2. </b><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Add to-clause to excluded ANL</span><span class="named-paragraph-number">16.2</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">anl_entry</span><span class="plain-syntax"> *</span><span class="identifier-syntax">anl</span><span class="plain-syntax"> = </span><span class="identifier-syntax">RP</span><span class="plain-syntax">[1];</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> ((</span><span class="identifier-syntax">anl</span><span class="plain-syntax"> == </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">) ||</span>
<span class="plain-syntax"> (</span><a href="4-as.html#SP5" class="function-link"><span class="function-syntax">ActionSemantics::can_have_noun</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">anl</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">item</span><span class="plain-syntax">.</span><span class="element-syntax">action_listed</span><span class="plain-syntax">) == </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">)) {</span>
<span class="plain-syntax"> ==&gt; { </span><span class="identifier-syntax">fail</span><span class="plain-syntax"> </span><span class="identifier-syntax">production</span><span class="plain-syntax"> };</span>
<span class="plain-syntax"> }</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">anl</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">parsing_data</span><span class="plain-syntax">.</span><span class="element-syntax">parameter</span><span class="plain-syntax">[</span><span class="identifier-syntax">anl</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">parsing_data</span><span class="plain-syntax">.</span><span class="element-syntax">parc</span><span class="plain-syntax">] = </span><span class="identifier-syntax">GET_RW</span><span class="plain-syntax">(</span><span class="function-syntax">&lt;anl-excluded&gt;</span><span class="plain-syntax">, </span><span class="constant-syntax">1</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">anl</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">parsing_data</span><span class="plain-syntax">.</span><span class="element-syntax">parc</span><span class="plain-syntax">++;</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">action_name_list</span><span class="plain-syntax"> *</span><span class="identifier-syntax">list</span><span class="plain-syntax"> = </span><a href="4-anl.html#SP1" class="function-link"><span class="function-syntax">ActionNameLists::new_list</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">anl</span><span class="plain-syntax">, </span><span class="constant-syntax">ANL_NEGATED_ITEMWISE</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> ==&gt; { </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">, </span><span class="identifier-syntax">list</span><span class="plain-syntax"> };</span>
</pre>
<ul class="endnotetexts"><li>This code is used in <a href="4-anl.html#SP16">&#167;16</a>.</li></ul>
<p class="commentary firstcommentary"><a id="SP18_1" class="paragraph-anchor"></a><b>&#167;18.1. </b><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Join parsed ANLs</span><span class="named-paragraph-number">18.1</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">anl_entry</span><span class="plain-syntax"> *</span><span class="identifier-syntax">join</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">anl_entry</span><span class="plain-syntax"> *</span><span class="identifier-syntax">left_atom</span><span class="plain-syntax"> = </span><span class="identifier-syntax">RP</span><span class="plain-syntax">[1];</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">anl_entry</span><span class="plain-syntax"> *</span><span class="identifier-syntax">right_tail</span><span class="plain-syntax"> = </span><span class="identifier-syntax">RP</span><span class="plain-syntax">[2];</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">left_atom</span><span class="plain-syntax"> == </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">) { </span><span class="identifier-syntax">join</span><span class="plain-syntax"> = </span><span class="identifier-syntax">right_tail</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">right_tail</span><span class="plain-syntax"> == </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">) { </span><span class="identifier-syntax">join</span><span class="plain-syntax"> = </span><span class="identifier-syntax">left_atom</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">anl_entry</span><span class="plain-syntax"> *</span><span class="identifier-syntax">new_anl</span><span class="plain-syntax"> = </span><span class="identifier-syntax">right_tail</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">new_anl</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">next_link</span><span class="plain-syntax"> != </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">) </span><span class="identifier-syntax">new_anl</span><span class="plain-syntax"> = </span><span class="identifier-syntax">new_anl</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">next_link</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">new_anl</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">next_link</span><span class="plain-syntax"> = </span><span class="identifier-syntax">left_atom</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">join</span><span class="plain-syntax"> = </span><span class="identifier-syntax">right_tail</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> }</span>
<span class="plain-syntax"> ==&gt; { </span><span class="constant-syntax">0</span><span class="plain-syntax">, </span><span class="identifier-syntax">join</span><span class="plain-syntax"> };</span>
</pre>
<ul class="endnotetexts"><li>This code is used in <a href="4-anl.html#SP18">&#167;18</a>.</li></ul>
<p class="commentary firstcommentary"><a id="SP20" class="paragraph-anchor"></a><b>&#167;20. </b></p>
<pre class="displayed-code all-displayed-code code-font">
<span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">anl_parsing_tense</span><span class="plain-syntax"> = </span><span class="identifier-syntax">IS_TENSE</span><span class="plain-syntax">;</span>
<span class="reserved-syntax">action_name_list</span><span class="plain-syntax"> *</span><span class="function-syntax">ActionNameLists::parse</span><button class="popup" onclick="togglePopup('usagePopup30')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup30">Usage of <span class="code-font"><span class="function-syntax">ActionNameLists::parse</span></span>:<br/>Action Patterns - <a href="4-ap2.html#SP23">&#167;23</a>, <a href="4-ap2.html#SP26_3">&#167;26.3</a>, <a href="4-ap2.html#SP26_4">&#167;26.4</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="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">tense</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::mismatched_brackets</span><span class="plain-syntax">(</span><span class="identifier-syntax">W</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">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">t</span><span class="plain-syntax"> = </span><span class="identifier-syntax">anl_parsing_tense</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">anl_parsing_tense</span><span class="plain-syntax"> = </span><span class="identifier-syntax">tense</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">r</span><span class="plain-syntax"> = </span><span class="function-syntax">&lt;action-list&gt;</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">anl_parsing_tense</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">r</span><span class="plain-syntax">) </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="function-syntax">&lt;&lt;rp&gt;&gt;</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">;</span>
<span class="plain-syntax">}</span>
</pre>
<p class="commentary firstcommentary"><a id="SP21" class="paragraph-anchor"></a><b>&#167;21. </b></p>
<pre class="displayed-code all-displayed-code code-font">
<span class="reserved-syntax">anl_entry</span><span class="plain-syntax"> *</span><span class="function-syntax">ActionNameLists::anl_parse_internal</span><button class="popup" onclick="togglePopup('usagePopup31')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup31">Usage of <span class="code-font"><span class="function-syntax">ActionNameLists::anl_parse_internal</span></span>:<br/><a href="4-anl.html#SP19">&#167;19</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="plain-syntax"> </span><span class="identifier-syntax">LOGIF</span><span class="plain-syntax">(</span><span class="identifier-syntax">ACTION_PATTERN_PARSING</span><span class="plain-syntax">, </span><span class="string-syntax">"Parsing ANL from %W (tense %d)\n"</span><span class="plain-syntax">, </span><span class="identifier-syntax">W</span><span class="plain-syntax">, </span><span class="identifier-syntax">anl_parsing_tense</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">tense</span><span class="plain-syntax"> = </span><span class="identifier-syntax">anl_parsing_tense</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">anl_entry</span><span class="plain-syntax"> *</span><span class="identifier-syntax">anl_list</span><span class="plain-syntax"> = </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">, *</span><span class="identifier-syntax">new_anl</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">action_name</span><span class="plain-syntax"> *</span><span class="identifier-syntax">an</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">new_anl</span><span class="plain-syntax"> = </span><a href="4-anl.html#SP3" class="function-link"><span class="function-syntax">ActionNameLists::new_entry_at</span></a><span class="plain-syntax">(-1);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">LOOP_OVER</span><span class="plain-syntax">(</span><span class="identifier-syntax">an</span><span class="plain-syntax">, </span><span class="reserved-syntax">action_name</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">x_ended</span><span class="plain-syntax"> = </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">fc</span><span class="plain-syntax"> = </span><span class="constant-syntax">0</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">it_optional</span><span class="plain-syntax"> = </span><a href="4-ann.html#SP8" class="function-link"><span class="function-syntax">ActionNameNames::it_optional</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">an</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">abbreviable</span><span class="plain-syntax"> = </span><a href="4-ann.html#SP8" class="function-link"><span class="function-syntax">ActionNameNames::abbreviable</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">an</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">XW</span><span class="plain-syntax"> = </span><a href="4-ann.html#SP5" class="function-link"><span class="function-syntax">ActionNameNames::tensed</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">an</span><span class="plain-syntax">, </span><span class="identifier-syntax">tense</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">new_anl</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">item</span><span class="plain-syntax">.</span><span class="element-syntax">action_listed</span><span class="plain-syntax"> = </span><span class="identifier-syntax">an</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">new_anl</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">parsing_data</span><span class="plain-syntax">.</span><span class="element-syntax">parc</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">new_anl</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">parsing_data</span><span class="plain-syntax">.</span><span class="element-syntax">word_position</span><span class="plain-syntax"> = </span><span class="identifier-syntax">Wordings::first_wn</span><span class="plain-syntax">(</span><span class="identifier-syntax">W</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">new_anl</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">parsing_data</span><span class="plain-syntax">.</span><span class="element-syntax">in_clause</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">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">w_m</span><span class="plain-syntax"> = </span><span class="identifier-syntax">Wordings::first_wn</span><span class="plain-syntax">(</span><span class="identifier-syntax">W</span><span class="plain-syntax">), </span><span class="identifier-syntax">x_m</span><span class="plain-syntax"> = </span><span class="identifier-syntax">Wordings::first_wn</span><span class="plain-syntax">(</span><span class="identifier-syntax">XW</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">w_m</span><span class="plain-syntax"> &lt;= </span><span class="identifier-syntax">Wordings::last_wn</span><span class="plain-syntax">(</span><span class="identifier-syntax">W</span><span class="plain-syntax">)) &amp;&amp; (</span><span class="identifier-syntax">x_m</span><span class="plain-syntax"> &lt;= </span><span class="identifier-syntax">Wordings::last_wn</span><span class="plain-syntax">(</span><span class="identifier-syntax">XW</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">Lexer::word</span><span class="plain-syntax">(</span><span class="identifier-syntax">x_m</span><span class="plain-syntax">++) != </span><span class="identifier-syntax">Lexer::word</span><span class="plain-syntax">(</span><span class="identifier-syntax">w_m</span><span class="plain-syntax">++)) {</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">fc</span><span class="plain-syntax">=1; </span><span class="reserved-syntax">goto</span><span class="plain-syntax"> </span><span class="identifier-syntax">DontInclude</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">x_m</span><span class="plain-syntax"> &gt; </span><span class="identifier-syntax">Wordings::last_wn</span><span class="plain-syntax">(</span><span class="identifier-syntax">XW</span><span class="plain-syntax">)) { </span><span class="identifier-syntax">x_ended</span><span class="plain-syntax"> = </span><span class="identifier-syntax">TRUE</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">if</span><span class="plain-syntax"> (</span><span class="function-syntax">&lt;object-pronoun&gt;</span><span class="plain-syntax">(</span><span class="identifier-syntax">Wordings::one_word</span><span class="plain-syntax">(</span><span class="identifier-syntax">x_m</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">w_m</span><span class="plain-syntax"> &gt; </span><span class="identifier-syntax">Wordings::last_wn</span><span class="plain-syntax">(</span><span class="identifier-syntax">W</span><span class="plain-syntax">)) </span><span class="identifier-syntax">x_ended</span><span class="plain-syntax"> = </span><span class="identifier-syntax">TRUE</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">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">j</span><span class="plain-syntax"> = -1, </span><span class="identifier-syntax">k</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">for</span><span class="plain-syntax"> (</span><span class="identifier-syntax">k</span><span class="plain-syntax">=(</span><span class="identifier-syntax">it_optional</span><span class="plain-syntax">)?(</span><span class="identifier-syntax">w_m</span><span class="plain-syntax">):(</span><span class="identifier-syntax">w_m</span><span class="plain-syntax">+1); </span><span class="identifier-syntax">k</span><span class="plain-syntax">&lt;=</span><span class="identifier-syntax">Wordings::last_wn</span><span class="plain-syntax">(</span><span class="identifier-syntax">W</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">Lexer::word</span><span class="plain-syntax">(</span><span class="identifier-syntax">k</span><span class="plain-syntax">) == </span><span class="identifier-syntax">Lexer::word</span><span class="plain-syntax">(</span><span class="identifier-syntax">x_m</span><span class="plain-syntax">+1)) { </span><span class="identifier-syntax">j</span><span class="plain-syntax"> = </span><span class="identifier-syntax">k</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">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">j</span><span class="plain-syntax">&lt;0) { </span><span class="identifier-syntax">fc</span><span class="plain-syntax">=2; </span><span class="reserved-syntax">goto</span><span class="plain-syntax"> </span><span class="identifier-syntax">DontInclude</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">j</span><span class="plain-syntax">-1 &gt;= </span><span class="identifier-syntax">w_m</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">new_anl</span><span class="plain-syntax">-&gt;</span><span class="reserved-syntax">parsing_data</span><span class="plain-syntax">.</span><span class="element-syntax">parameter</span><span class="plain-syntax">[</span><span class="identifier-syntax">new_anl</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">parsing_data</span><span class="plain-syntax">.</span><span class="element-syntax">parc</span><span class="plain-syntax">] = </span><span class="identifier-syntax">Wordings::new</span><span class="plain-syntax">(</span><span class="identifier-syntax">w_m</span><span class="plain-syntax">, </span><span class="identifier-syntax">j</span><span class="plain-syntax">-1);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">new_anl</span><span class="plain-syntax">-&gt;</span><span class="reserved-syntax">parsing_data</span><span class="plain-syntax">.</span><span class="element-syntax">parc</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">new_anl</span><span class="plain-syntax">-&gt;</span><span class="reserved-syntax">parsing_data</span><span class="plain-syntax">.</span><span class="element-syntax">parameter</span><span class="plain-syntax">[</span><span class="identifier-syntax">new_anl</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">parsing_data</span><span class="plain-syntax">.</span><span class="element-syntax">parc</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="identifier-syntax">new_anl</span><span class="plain-syntax">-&gt;</span><span class="reserved-syntax">parsing_data</span><span class="plain-syntax">.</span><span class="element-syntax">parc</span><span class="plain-syntax">++;</span>
<span class="plain-syntax"> }</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">w_m</span><span class="plain-syntax"> = </span><span class="identifier-syntax">j</span><span class="plain-syntax">; </span><span class="identifier-syntax">x_m</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">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">x_ended</span><span class="plain-syntax">) </span><span class="reserved-syntax">break</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> }</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> ((</span><span class="identifier-syntax">w_m</span><span class="plain-syntax"> &gt; </span><span class="identifier-syntax">Wordings::last_wn</span><span class="plain-syntax">(</span><span class="identifier-syntax">W</span><span class="plain-syntax">)) &amp;&amp; (</span><span class="identifier-syntax">x_ended</span><span class="plain-syntax"> == </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">)) {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">abbreviable</span><span class="plain-syntax">) </span><span class="identifier-syntax">x_ended</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="identifier-syntax">fc</span><span class="plain-syntax">=3; </span><span class="reserved-syntax">goto</span><span class="plain-syntax"> </span><span class="identifier-syntax">DontInclude</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">x_m</span><span class="plain-syntax"> &lt;= </span><span class="identifier-syntax">Wordings::last_wn</span><span class="plain-syntax">(</span><span class="identifier-syntax">XW</span><span class="plain-syntax">)) </span><span class="identifier-syntax">new_anl</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">parsing_data</span><span class="plain-syntax">.</span><span class="element-syntax">abbreviation_level</span><span class="plain-syntax"> = </span><span class="identifier-syntax">Wordings::last_wn</span><span class="plain-syntax">(</span><span class="identifier-syntax">XW</span><span class="plain-syntax">)-</span><span class="identifier-syntax">x_m</span><span class="plain-syntax">+1;</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">inc</span><span class="plain-syntax"> = </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">w_m</span><span class="plain-syntax"> &gt; </span><span class="identifier-syntax">Wordings::last_wn</span><span class="plain-syntax">(</span><span class="identifier-syntax">W</span><span class="plain-syntax">)) </span><span class="identifier-syntax">inc</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="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="function-syntax">&lt;anl-in-tail&gt;</span><span class="plain-syntax">(</span><span class="identifier-syntax">Wordings::from</span><span class="plain-syntax">(</span><span class="identifier-syntax">W</span><span class="plain-syntax">, </span><span class="identifier-syntax">w_m</span><span class="plain-syntax">))) {</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">new_anl</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">parsing_data</span><span class="plain-syntax">.</span><span class="element-syntax">in_clause</span><span class="plain-syntax"> = </span><span class="identifier-syntax">GET_RW</span><span class="plain-syntax">(</span><span class="function-syntax">&lt;anl-in-tail&gt;</span><span class="plain-syntax">, </span><span class="constant-syntax">1</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">inc</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="reserved-syntax">if</span><span class="plain-syntax"> (</span><a href="4-as.html#SP5" class="function-link"><span class="function-syntax">ActionSemantics::can_have_noun</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">an</span><span class="plain-syntax">)) {</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">anl_being_parsed</span><span class="plain-syntax"> = </span><span class="identifier-syntax">new_anl</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;anl-to-tail&gt;</span><span class="plain-syntax">(</span><span class="identifier-syntax">Wordings::from</span><span class="plain-syntax">(</span><span class="identifier-syntax">W</span><span class="plain-syntax">, </span><span class="identifier-syntax">w_m</span><span class="plain-syntax">))) {</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">inc</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">anl_being_parsed</span><span class="plain-syntax"> = </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> }</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">new_anl</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">next_link</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">inc</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">anl_list</span><span class="plain-syntax"> == </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">) </span><span class="identifier-syntax">anl_list</span><span class="plain-syntax"> = </span><span class="identifier-syntax">new_anl</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">anl_entry</span><span class="plain-syntax"> *</span><span class="identifier-syntax">pos</span><span class="plain-syntax"> = </span><span class="identifier-syntax">anl_list</span><span class="plain-syntax">, *</span><span class="identifier-syntax">prev</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">while</span><span class="plain-syntax"> ((</span><span class="identifier-syntax">pos</span><span class="plain-syntax">) &amp;&amp; (</span><span class="identifier-syntax">pos</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">parsing_data</span><span class="plain-syntax">.</span><span class="element-syntax">abbreviation_level</span><span class="plain-syntax"> &lt; </span><span class="identifier-syntax">new_anl</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">parsing_data</span><span class="plain-syntax">.</span><span class="element-syntax">abbreviation_level</span><span class="plain-syntax">))</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">prev</span><span class="plain-syntax"> = </span><span class="identifier-syntax">pos</span><span class="plain-syntax">, </span><span class="identifier-syntax">pos</span><span class="plain-syntax"> = </span><span class="identifier-syntax">pos</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">next_link</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">prev</span><span class="plain-syntax">) </span><span class="identifier-syntax">prev</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">next_link</span><span class="plain-syntax"> = </span><span class="identifier-syntax">new_anl</span><span class="plain-syntax">; </span><span class="reserved-syntax">else</span><span class="plain-syntax"> </span><span class="identifier-syntax">anl_list</span><span class="plain-syntax"> = </span><span class="identifier-syntax">new_anl</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">new_anl</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">next_link</span><span class="plain-syntax"> = </span><span class="identifier-syntax">pos</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">new_anl</span><span class="plain-syntax"> = </span><a href="4-anl.html#SP3" class="function-link"><span class="function-syntax">ActionNameLists::new_entry_at</span></a><span class="plain-syntax">(-1);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">DontInclude:</span><span class="plain-syntax"> ;</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">ACTION_PATTERN_PARSING</span><span class="plain-syntax">, </span><span class="string-syntax">"Parsing ANL from %W resulted in:\n$8\n"</span><span class="plain-syntax">, </span><span class="identifier-syntax">W</span><span class="plain-syntax">, </span><span class="identifier-syntax">anl_list</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">anl_list</span><span class="plain-syntax">;</span>
<span class="plain-syntax">}</span>
</pre>
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