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<ul class="crumbs"><li><a href="../index.html">Home</a></li><li><a href="../compiler.html">Inform7 Modules</a></li><li><a href="index.html">core</a></li><li><a href="index.html#12">Chapter 12: Use of Propositions</a></li><li><b>I6 Schemas</b></li></ul></div>
<p class="purpose">To create, and later expand upon, short prototypes of I6 syntax for such run-time tasks as the setting, unsetting or testing of a relation.</p>
<ul class="toc"><li><a href="12-is.html#SP3">&#167;3. Building schemas</a></li><li><a href="12-is.html#SP4">&#167;4. Emptiness</a></li><li><a href="12-is.html#SP5">&#167;5. Expansion</a></li><li><a href="12-is.html#SP9">&#167;9. Logging schemas</a></li></ul><hr class="tocbar">
<p class="commentary firstcommentary"><a id="SP1"></a><b>&#167;1. </b>An I6 schema is an intermediate-level code for the final stages of
compiling to Inform 6 syntax. Its "prototype" is a C string encoded as
ISO Latin-1, in which the asterisk <span class="extract"><span class="extract-syntax">*</span></span> acts as an escape character.
</p>
<p class="commentary">"Expanding" an I6 schema is essentially a form of macro expansion. A caller
supplies us with a schema and a number of parameters, each of which is either
a literal piece of text or a predicate calculus term. We then copy the schema's
prototype into the output, except as specified:
</p>
<ul class="items"><li>(1) <span class="extract"><span class="extract-syntax">**</span></span> expands to a literal asterisk.
</li><li>(2) <span class="extract"><span class="extract-syntax">*1</span></span>, <span class="extract"><span class="extract-syntax">*2</span></span>, ..., <span class="extract"><span class="extract-syntax">*9</span></span> expands to the 1st to 9th parameter, where a literal
text parameter is copied straight through, whereas a term parameter is compiled
as a value. Expanding a parameter which was not supplied does nothing, but is
not an error.
<ul class="items"><li>(a) The modifier <span class="extract"><span class="extract-syntax">!</span></span>, as in <span class="extract"><span class="extract-syntax">*!1</span></span> to <span class="extract"><span class="extract-syntax">*!9</span></span>, enables the use of local
variables in any text substitutions compiled in the course of the term.
</li><li>(b) The modifier <span class="extract"><span class="extract-syntax">#</span></span>, as in <span class="extract"><span class="extract-syntax">*#1</span></span> to <span class="extract"><span class="extract-syntax">*#9</span></span>, causes us to expand to the
ID number of the kind of value of the parameter, not to the parameter itself.
(If the parameter is literal text rather than a term, we do nothing.)
</li></ul>
<li>(3) <span class="extract"><span class="extract-syntax">*=-</span></span> and <span class="extract"><span class="extract-syntax">*=+</span></span> turn "dereference pointers" mode off and on, respectively.
This has effect only when compiling a value whose content is stored on the
heap; Inform ordinarily compiles this by making a new copy of the value and
using a pointer to it, but if "dereference pointers" is off then the pointer
to the original data is used instead. It's a sort of macro-expansion version
of the difference between call-by-value and call-by-reference. The effect lasts
only while the expander is running; when the expander finishes, it restores the
mode to its setting at the start.
</li><li>(4) <span class="extract"><span class="extract-syntax">*##</span></span> is reserved for the use of higher-level code in building schemas &mdash;
it has to do with locations of data on the heap &mdash; but is not strictly speaking
legal in a schema. Attempting to expand it will cause an internal error.
</li></ul>
<p class="commentary">Any other occurrence of an asterisk is illegal, and will throw an internal
error.
</p>
<p class="commentary firstcommentary"><a id="SP2"></a><b>&#167;2. </b>The I6 schema structure is very simple, then:
</p>
<pre class="definitions code-font"><span class="definition-keyword">define</span> <span class="constant-syntax">TYPICAL_I6_SCHEMA_LENGTH</span><span class="plain-syntax"> </span><span class="constant-syntax">128</span><span class="plain-syntax"> </span><span class="comment-syntax"> in fact 40 is plenty</span>
</pre>
<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">i6_schema</span><span class="plain-syntax"> {</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">wchar_t</span><span class="plain-syntax"> </span><span class="identifier-syntax">prototype_storage</span><span class="plain-syntax">[</span><span class="constant-syntax">TYPICAL_I6_SCHEMA_LENGTH</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">text_stream</span><span class="plain-syntax"> </span><span class="identifier-syntax">prototype</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">inter_schema</span><span class="plain-syntax"> *</span><span class="identifier-syntax">compiled</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">no_quoted_inames</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">inter_name</span><span class="plain-syntax"> *</span><span class="identifier-syntax">quoted_inames</span><span class="plain-syntax">[2];</span>
<span class="plain-syntax">} </span><span class="reserved-syntax">i6_schema</span><span class="plain-syntax">;</span>
</pre>
<ul class="endnotetexts"><li>The structure i6_schema is private to this section.</li></ul>
<p class="commentary firstcommentary"><a id="SP3"></a><b>&#167;3. Building schemas. </b>The following makes up a new schema from a <span class="extract"><span class="extract-syntax">printf</span></span>-style formatted string:
</p>
<pre class="definitions code-font"><span class="definition-keyword">define</span> <span class="constant-syntax">MAX_I6_SCHEMA_ATTEMPT</span><span class="plain-syntax"> </span><span class="constant-syntax">1024</span><span class="plain-syntax"> </span><span class="comment-syntax"> plenty of room for conjectural schema overruns</span>
</pre>
<pre class="displayed-code all-displayed-code code-font">
<span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">unique_qi_counter</span><span class="plain-syntax"> = </span><span class="constant-syntax">0</span><span class="plain-syntax">;</span>
<span class="reserved-syntax">i6_schema</span><span class="plain-syntax"> *</span><span class="function-syntax">Calculus::Schemas::new</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">Calculus::Schemas::new</span></span>:<br/>Relations - <a href="7-rlt.html#SP4">&#167;4</a>, <a href="7-rlt.html#SP4_4">&#167;4.4</a>, <a href="7-rlt.html#SP4_5">&#167;4.5</a>, <a href="7-rlt.html#SP4_6">&#167;4.6</a>, <a href="7-rlt.html#SP4_7">&#167;4.7</a>, <a href="7-rlt.html#SP4_8">&#167;4.8</a>, <a href="7-rlt.html#SP4_9">&#167;4.9</a>, <a href="7-rlt.html#SP4_10">&#167;4.10</a>, <a href="7-rlt.html#SP4_11">&#167;4.11</a>, <a href="7-rlt.html#SP4_12">&#167;4.12</a>, <a href="7-rlt.html#SP4_13">&#167;4.13</a><br/>Quasinumeric Relations - <a href="12-qr.html#SP2">&#167;2</a><br/>Compile Atoms - <a href="12-ca.html#SP7">&#167;7</a><br/>Measurement Adjectives - <a href="15-ma.html#SP13_1">&#167;13.1</a><br/>Same Property Relation - <a href="15-spr.html#SP2">&#167;2</a><br/>Setting Property Relation - <a href="15-spr2.html#SP8">&#167;8</a><br/>Listed-In Relations - <a href="19-lr.html#SP2">&#167;2</a><br/>Stack Frames - <a href="24-sf.html#SP14">&#167;14</a><br/>Compile Invocations Inline - <a href="25-cii.html#SP3_5_4">&#167;3.5.4</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">char</span><span class="plain-syntax"> *</span><span class="identifier-syntax">fmt</span><span class="plain-syntax">, ...) {</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">va_list</span><span class="plain-syntax"> </span><span class="identifier-syntax">ap</span><span class="plain-syntax">; </span><span class="comment-syntax"> the variable argument list signified by the dots</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">i6_schema</span><span class="plain-syntax"> *</span><span class="identifier-syntax">sch</span><span class="plain-syntax"> = </span><span class="identifier-syntax">CREATE</span><span class="plain-syntax">(</span><span class="reserved-syntax">i6_schema</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">sch</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">prototype</span><span class="plain-syntax"> = </span><span class="identifier-syntax">Streams::new_buffer</span><span class="plain-syntax">(</span><span class="constant-syntax">TYPICAL_I6_SCHEMA_LENGTH</span><span class="plain-syntax">, </span><span class="identifier-syntax">sch</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">prototype_storage</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">sch</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">no_quoted_inames</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">text_stream</span><span class="plain-syntax"> *</span><span class="identifier-syntax">OUT</span><span class="plain-syntax"> = &amp;(</span><span class="identifier-syntax">sch</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">prototype</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="12-is.html#SP3_3" class="named-paragraph-link"><span class="named-paragraph">Process the varargs into schema prototype text</span><span class="named-paragraph-number">3.3</span></a></span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">va_end</span><span class="plain-syntax">(</span><span class="identifier-syntax">ap</span><span class="plain-syntax">); </span><span class="comment-syntax"> macro to end variable argument processing</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">sch</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">compiled</span><span class="plain-syntax"> = </span><span class="identifier-syntax">InterSchemas::from_i6s</span><span class="plain-syntax">(&amp;(</span><span class="identifier-syntax">sch</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">prototype</span><span class="plain-syntax">), </span><span class="identifier-syntax">sch</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">no_quoted_inames</span><span class="plain-syntax">, (</span><span class="reserved-syntax">void</span><span class="plain-syntax"> **) </span><span class="identifier-syntax">sch</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">quoted_inames</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">sch</span><span class="plain-syntax">;</span>
<span class="plain-syntax">}</span>
</pre>
<p class="commentary firstcommentary"><a id="SP3_1"></a><b>&#167;3.1. </b>And this is a variation for modifying an existing schema:
</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">Calculus::Schemas::modify</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">Calculus::Schemas::modify</span></span>:<br/>Instances - <a href="6-ins.html#SP37_3">&#167;37.3</a><br/>Adjective Meanings - <a href="7-am.html#SP18">&#167;18</a>, <a href="7-am.html#SP19">&#167;19</a>, <a href="7-am.html#SP30_1">&#167;30.1</a><br/>Binary Predicates - <a href="7-bp.html#SP43_1">&#167;43.1</a>, <a href="7-bp.html#SP43_2">&#167;43.2</a><br/>The Universal Relation - <a href="7-tur.html#SP7">&#167;7</a><br/>The Equality Relation - <a href="12-ter.html#SP7">&#167;7</a>, <a href="12-ter.html#SP7_1">&#167;7.1</a>, <a href="12-ter.html#SP7_2">&#167;7.2</a>, <a href="12-ter.html#SP7_3">&#167;7.3</a><br/>Quasinumeric Relations - <a href="12-qr.html#SP6">&#167;6</a><br/>Compile Atoms - <a href="12-ca.html#SP5">&#167;5</a>, <a href="12-ca.html#SP5_1">&#167;5.1</a>, <a href="12-ca.html#SP5_2">&#167;5.2</a>, <a href="12-ca.html#SP5_3">&#167;5.3</a>, <a href="12-ca.html#SP5_4">&#167;5.4</a>, <a href="12-ca.html#SP5_5">&#167;5.5</a><br/>Deciding to Defer - <a href="12-dtd.html#SP24">&#167;24</a><br/>Compile Deferred Propositions - <a href="12-cdp.html#SP5">&#167;5</a><br/>Either-Or Properties - <a href="15-ep.html#SP15_1">&#167;15.1</a>, <a href="15-ep.html#SP15_2">&#167;15.2</a><br/>The Provision Relation - <a href="15-tpr.html#SP6">&#167;6</a>, <a href="15-tpr.html#SP6_1">&#167;6.1</a>, <a href="15-tpr.html#SP6_2">&#167;6.2</a><br/>Measurement Adjectives - <a href="15-ma.html#SP11">&#167;11</a><br/>Comparative Relations - <a href="15-cr.html#SP6_1">&#167;6.1</a><br/>Setting Property Relation - <a href="15-spr2.html#SP11">&#167;11</a><br/>Instance Counting - <a href="16-ic.html#SP14">&#167;14</a><br/>Adjectives by Raw Phrase - <a href="23-abrp.html#SP2">&#167;2</a><br/>Adjectives by Raw Condition - <a href="23-abrc.html#SP2">&#167;2</a><br/>Adjectives by Phrase - <a href="23-abp.html#SP1">&#167;1</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">i6_schema</span><span class="plain-syntax"> *</span><span class="identifier-syntax">sch</span><span class="plain-syntax">, </span><span class="reserved-syntax">char</span><span class="plain-syntax"> *</span><span class="identifier-syntax">fmt</span><span class="plain-syntax">, ...) {</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">va_list</span><span class="plain-syntax"> </span><span class="identifier-syntax">ap</span><span class="plain-syntax">; </span><span class="comment-syntax"> the variable argument list signified by the dots</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">sch</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">prototype</span><span class="plain-syntax"> = </span><span class="identifier-syntax">Streams::new_buffer</span><span class="plain-syntax">(</span><span class="constant-syntax">TYPICAL_I6_SCHEMA_LENGTH</span><span class="plain-syntax">, </span><span class="identifier-syntax">sch</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">prototype_storage</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">sch</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">no_quoted_inames</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">text_stream</span><span class="plain-syntax"> *</span><span class="identifier-syntax">OUT</span><span class="plain-syntax"> = &amp;(</span><span class="identifier-syntax">sch</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">prototype</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="12-is.html#SP3_3" class="named-paragraph-link"><span class="named-paragraph">Process the varargs into schema prototype text</span><span class="named-paragraph-number">3.3</span></a></span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">va_end</span><span class="plain-syntax">(</span><span class="identifier-syntax">ap</span><span class="plain-syntax">); </span><span class="comment-syntax"> macro to end variable argument processing</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">sch</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">compiled</span><span class="plain-syntax"> = </span><span class="identifier-syntax">InterSchemas::from_i6s</span><span class="plain-syntax">(&amp;(</span><span class="identifier-syntax">sch</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">prototype</span><span class="plain-syntax">), </span><span class="identifier-syntax">sch</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">no_quoted_inames</span><span class="plain-syntax">, (</span><span class="reserved-syntax">void</span><span class="plain-syntax"> **) </span><span class="identifier-syntax">sch</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">quoted_inames</span><span class="plain-syntax">);</span>
<span class="plain-syntax">}</span>
</pre>
<p class="commentary firstcommentary"><a id="SP3_2"></a><b>&#167;3.2. </b>And another:
</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">Calculus::Schemas::append</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">Calculus::Schemas::append</span></span>:<br/>The Equality Relation - <a href="12-ter.html#SP7_6">&#167;7.6</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">i6_schema</span><span class="plain-syntax"> *</span><span class="identifier-syntax">sch</span><span class="plain-syntax">, </span><span class="reserved-syntax">char</span><span class="plain-syntax"> *</span><span class="identifier-syntax">fmt</span><span class="plain-syntax">, ...) {</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">va_list</span><span class="plain-syntax"> </span><span class="identifier-syntax">ap</span><span class="plain-syntax">; </span><span class="comment-syntax"> the variable argument list signified by the dots</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">text_stream</span><span class="plain-syntax"> *</span><span class="identifier-syntax">OUT</span><span class="plain-syntax"> = &amp;(</span><span class="identifier-syntax">sch</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">prototype</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="12-is.html#SP3_3" class="named-paragraph-link"><span class="named-paragraph">Process the varargs into schema prototype text</span><span class="named-paragraph-number">3.3</span></a></span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">va_end</span><span class="plain-syntax">(</span><span class="identifier-syntax">ap</span><span class="plain-syntax">); </span><span class="comment-syntax"> macro to end variable argument processing</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">sch</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">compiled</span><span class="plain-syntax"> = </span><span class="identifier-syntax">InterSchemas::from_i6s</span><span class="plain-syntax">(&amp;(</span><span class="identifier-syntax">sch</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">prototype</span><span class="plain-syntax">), </span><span class="identifier-syntax">sch</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">no_quoted_inames</span><span class="plain-syntax">, (</span><span class="reserved-syntax">void</span><span class="plain-syntax"> **) </span><span class="identifier-syntax">sch</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">quoted_inames</span><span class="plain-syntax">);</span>
<span class="plain-syntax">}</span>
</pre>
<p class="commentary firstcommentary"><a id="SP3_3"></a><b>&#167;3.3. </b>Either way, the schema's prototype is written as follows:
</p>
<p class="commentary"><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Process the varargs into schema prototype text</span><span class="named-paragraph-number">3.3</span></span><span class="comment-syntax"> =</span>
</p>
<pre class="displayed-code all-displayed-code code-font">
<span class="plain-syntax"> </span><span class="reserved-syntax">char</span><span class="plain-syntax"> *</span><span class="identifier-syntax">p</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">va_start</span><span class="plain-syntax">(</span><span class="identifier-syntax">ap</span><span class="plain-syntax">, </span><span class="identifier-syntax">fmt</span><span class="plain-syntax">); </span><span class="comment-syntax"> macro to begin variable argument processing</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">for</span><span class="plain-syntax"> (</span><span class="identifier-syntax">p</span><span class="plain-syntax"> = </span><span class="identifier-syntax">fmt</span><span class="plain-syntax">; *</span><span class="identifier-syntax">p</span><span class="plain-syntax">; </span><span class="identifier-syntax">p</span><span class="plain-syntax">++) {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">switch</span><span class="plain-syntax"> (*</span><span class="identifier-syntax">p</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">case</span><span class="plain-syntax"> </span><span class="character-syntax">'%'</span><span class="plain-syntax">: </span><span class="named-paragraph-container code-font"><a href="12-is.html#SP3_3_1" class="named-paragraph-link"><span class="named-paragraph">Recognise schema-format escape sequences</span><span class="named-paragraph-number">3.3.1</span></a></span><span class="plain-syntax">; </span><span class="reserved-syntax">break</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">default:</span><span class="plain-syntax"> </span><span class="identifier-syntax">PUT</span><span class="plain-syntax">(*</span><span class="identifier-syntax">p</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>
</pre>
<ul class="endnotetexts"><li>This code is used in <a href="12-is.html#SP3">&#167;3</a>, <a href="12-is.html#SP3_1">&#167;3.1</a>, <a href="12-is.html#SP3_2">&#167;3.2</a>.</li></ul>
<p class="commentary firstcommentary"><a id="SP3_3_1"></a><b>&#167;3.3.1. </b>We recognise only a few escapes here: <span class="extract"><span class="extract-syntax">%%</span></span>, a literal percentage sign; <span class="extract"><span class="extract-syntax">%d</span></span>,
an integer; <span class="extract"><span class="extract-syntax">%s</span></span>, a C string; <span class="extract"><span class="extract-syntax">%S</span></span>, a text stream; and <span class="extract"><span class="extract-syntax">%k</span></span>, a kind ID.
</p>
<p class="commentary"><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Recognise schema-format escape sequences</span><span class="named-paragraph-number">3.3.1</span></span><span class="comment-syntax"> =</span>
</p>
<pre class="displayed-code all-displayed-code code-font">
<span class="plain-syntax"> </span><span class="identifier-syntax">p</span><span class="plain-syntax">++;</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">switch</span><span class="plain-syntax"> (*</span><span class="identifier-syntax">p</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">case</span><span class="plain-syntax"> </span><span class="character-syntax">'d'</span><span class="plain-syntax">: </span><span class="identifier-syntax">WRITE</span><span class="plain-syntax">(</span><span class="string-syntax">"%d"</span><span class="plain-syntax">, </span><span class="identifier-syntax">va_arg</span><span class="plain-syntax">(</span><span class="identifier-syntax">ap</span><span class="plain-syntax">, </span><span class="reserved-syntax">int</span><span class="plain-syntax">)); </span><span class="reserved-syntax">break</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">case</span><span class="plain-syntax"> </span><span class="character-syntax">'k'</span><span class="plain-syntax">: </span><a href="13-rsfk.html#SP11" class="function-link"><span class="function-syntax">Kinds::RunTime::compile_weak_id</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">OUT</span><span class="plain-syntax">, </span><span class="identifier-syntax">va_arg</span><span class="plain-syntax">(</span><span class="identifier-syntax">ap</span><span class="plain-syntax">, </span><span class="identifier-syntax">kind</span><span class="plain-syntax"> *)); </span><span class="reserved-syntax">break</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">case</span><span class="plain-syntax"> </span><span class="character-syntax">'L'</span><span class="plain-syntax">: </span><span class="identifier-syntax">WRITE</span><span class="plain-syntax">(</span><span class="string-syntax">"%~L"</span><span class="plain-syntax">, </span><span class="identifier-syntax">va_arg</span><span class="plain-syntax">(</span><span class="identifier-syntax">ap</span><span class="plain-syntax">, </span><span class="reserved-syntax">local_variable</span><span class="plain-syntax"> *)); </span><span class="reserved-syntax">break</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">case</span><span class="plain-syntax"> </span><span class="character-syntax">'n'</span><span class="plain-syntax">: {</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">inter_name</span><span class="plain-syntax"> *</span><span class="identifier-syntax">iname</span><span class="plain-syntax"> = (</span><span class="identifier-syntax">inter_name</span><span class="plain-syntax"> *) </span><span class="identifier-syntax">va_arg</span><span class="plain-syntax">(</span><span class="identifier-syntax">ap</span><span class="plain-syntax">, </span><span class="identifier-syntax">inter_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">N</span><span class="plain-syntax"> = </span><span class="identifier-syntax">sch</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">no_quoted_inames</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">N</span><span class="plain-syntax"> &gt;= </span><span class="constant-syntax">2</span><span class="plain-syntax">) </span><span class="identifier-syntax">internal_error</span><span class="plain-syntax">(</span><span class="string-syntax">"too many inter_name quotes"</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">sch</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">quoted_inames</span><span class="plain-syntax">[</span><span class="identifier-syntax">N</span><span class="plain-syntax">] = </span><span class="identifier-syntax">iname</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">WRITE</span><span class="plain-syntax">(</span><span class="string-syntax">"QUOTED_INAME_%d_%08x"</span><span class="plain-syntax">, </span><span class="identifier-syntax">N</span><span class="plain-syntax">, </span><span class="identifier-syntax">unique_qi_counter</span><span class="plain-syntax">++);</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">break</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> }</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">case</span><span class="plain-syntax"> </span><span class="character-syntax">'N'</span><span class="plain-syntax">: </span><span class="identifier-syntax">WRITE</span><span class="plain-syntax">(</span><span class="string-syntax">"%N"</span><span class="plain-syntax">, </span><span class="identifier-syntax">va_arg</span><span class="plain-syntax">(</span><span class="identifier-syntax">ap</span><span class="plain-syntax">, </span><span class="reserved-syntax">int</span><span class="plain-syntax">)); </span><span class="reserved-syntax">break</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">case</span><span class="plain-syntax"> </span><span class="character-syntax">'s'</span><span class="plain-syntax">: </span><span class="identifier-syntax">WRITE</span><span class="plain-syntax">(</span><span class="string-syntax">"%s"</span><span class="plain-syntax">, </span><span class="identifier-syntax">va_arg</span><span class="plain-syntax">(</span><span class="identifier-syntax">ap</span><span class="plain-syntax">, </span><span class="reserved-syntax">char</span><span class="plain-syntax"> *)); </span><span class="reserved-syntax">break</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">case</span><span class="plain-syntax"> </span><span class="character-syntax">'S'</span><span class="plain-syntax">: </span><span class="identifier-syntax">WRITE</span><span class="plain-syntax">(</span><span class="string-syntax">"%S"</span><span class="plain-syntax">, </span><span class="identifier-syntax">va_arg</span><span class="plain-syntax">(</span><span class="identifier-syntax">ap</span><span class="plain-syntax">, </span><span class="identifier-syntax">text_stream</span><span class="plain-syntax"> *)); </span><span class="reserved-syntax">break</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">case</span><span class="plain-syntax"> </span><span class="character-syntax">'%'</span><span class="plain-syntax">: </span><span class="identifier-syntax">PUT</span><span class="plain-syntax">(</span><span class="character-syntax">'%'</span><span class="plain-syntax">); </span><span class="reserved-syntax">break</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">default:</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">fprintf</span><span class="plain-syntax">(</span><span class="identifier-syntax">stderr</span><span class="plain-syntax">, </span><span class="string-syntax">"*** Bad schema format: &lt;%s&gt; ***\n"</span><span class="plain-syntax">, </span><span class="identifier-syntax">fmt</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">internal_error</span><span class="plain-syntax">(</span><span class="string-syntax">"Unknown % string escape in schema format"</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> }</span>
</pre>
<ul class="endnotetexts"><li>This code is used in <a href="12-is.html#SP3_3">&#167;3.3</a>.</li></ul>
<p class="commentary firstcommentary"><a id="SP4"></a><b>&#167;4. Emptiness. </b>A schema is empty if its prototype is the null string.
</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">Calculus::Schemas::empty</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">Calculus::Schemas::empty</span></span>:<br/>Adjective Meanings - <a href="7-am.html#SP30">&#167;30</a>, <a href="7-am.html#SP40_1">&#167;40.1</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">i6_schema</span><span class="plain-syntax"> *</span><span class="identifier-syntax">sch</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">sch</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">TRUE</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">Str::len</span><span class="plain-syntax">(&amp;(</span><span class="identifier-syntax">sch</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">prototype</span><span class="plain-syntax">)) == </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">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="SP5"></a><b>&#167;5. Expansion. </b>We provide two routines as a sort of API for expanding schemas. The user can
either specify two parameters, both of them terms...
</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">Calculus::Schemas::emit_expand_from_terms</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">Calculus::Schemas::emit_expand_from_terms</span></span>:<br/>Adjective Meanings - <a href="7-am.html#SP40_1">&#167;40.1</a><br/>Terms - <a href="11-tr.html#SP9">&#167;9</a><br/>Compile Atoms - <a href="12-ca.html#SP4_2">&#167;4.2</a><br/>Compile Deferred Propositions - <a href="12-cdp.html#SP5">&#167;5</a><br/>Stack Frames - <a href="24-sf.html#SP14">&#167;14</a><br/>Compile Invocations Inline - <a href="25-cii.html#SP3_5_4">&#167;3.5.4</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">i6_schema</span><span class="plain-syntax"> *</span><span class="identifier-syntax">sch</span><span class="plain-syntax">,</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">pcalc_term</span><span class="plain-syntax"> *</span><span class="identifier-syntax">pt1</span><span class="plain-syntax">, </span><span class="reserved-syntax">pcalc_term</span><span class="plain-syntax"> *</span><span class="identifier-syntax">pt2</span><span class="plain-syntax">, </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">semicolon</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">i6s_emission_state</span><span class="plain-syntax"> </span><span class="identifier-syntax">ems</span><span class="plain-syntax"> = </span><a href="12-is.html#SP5" class="function-link"><span class="function-syntax">Calculus::Schemas::state</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">pt1</span><span class="plain-syntax">, </span><span class="identifier-syntax">pt2</span><span class="plain-syntax">, </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">, </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><a href="12-is.html#SP6" class="function-link"><span class="function-syntax">Calculus::Schemas::sch_emit_inner</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">sch</span><span class="plain-syntax">, &amp;</span><span class="identifier-syntax">ems</span><span class="plain-syntax">, </span><span class="identifier-syntax">semicolon</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">Calculus::Schemas::emit_expand_from_locals</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">Calculus::Schemas::emit_expand_from_locals</span></span>:<br/>Relations - <a href="7-rlt.html#SP9_2_2">&#167;9.2.2</a>, <a href="7-rlt.html#SP9_2_3">&#167;9.2.3</a>, <a href="7-rlt.html#SP9_2_9_1">&#167;9.2.9.1</a>, <a href="7-rlt.html#SP9_2_10_1">&#167;9.2.10.1</a>, <a href="7-rlt.html#SP9_2_12_1">&#167;9.2.12.1</a>, <a href="7-rlt.html#SP23_5">&#167;23.5</a>, <a href="7-rlt.html#SP23_6">&#167;23.6</a><br/>Deciding to Defer - <a href="12-dtd.html#SP23">&#167;23</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">i6_schema</span><span class="plain-syntax"> *</span><span class="identifier-syntax">sch</span><span class="plain-syntax">,</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">local_variable</span><span class="plain-syntax"> *</span><span class="identifier-syntax">v1</span><span class="plain-syntax">, </span><span class="reserved-syntax">local_variable</span><span class="plain-syntax"> *</span><span class="identifier-syntax">v2</span><span class="plain-syntax">, </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">semicolon</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">pcalc_term</span><span class="plain-syntax"> </span><span class="identifier-syntax">pt1</span><span class="plain-syntax"> = </span><a href="11-tr.html#SP3" class="function-link"><span class="function-syntax">Calculus::Terms::new_constant</span></a><span class="plain-syntax">(</span>
<span class="plain-syntax"> </span><a href="14-lv.html#SP2" class="function-link"><span class="function-syntax">Lvalues::new_LOCAL_VARIABLE</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">EMPTY_WORDING</span><span class="plain-syntax">, </span><span class="identifier-syntax">v1</span><span class="plain-syntax">));</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">pcalc_term</span><span class="plain-syntax"> </span><span class="identifier-syntax">pt2</span><span class="plain-syntax"> = </span><a href="11-tr.html#SP3" class="function-link"><span class="function-syntax">Calculus::Terms::new_constant</span></a><span class="plain-syntax">(</span>
<span class="plain-syntax"> </span><a href="14-lv.html#SP2" class="function-link"><span class="function-syntax">Lvalues::new_LOCAL_VARIABLE</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">EMPTY_WORDING</span><span class="plain-syntax">, </span><span class="identifier-syntax">v2</span><span class="plain-syntax">));</span>
<span class="plain-syntax"> </span><a href="12-is.html#SP5" class="function-link"><span class="function-syntax">Calculus::Schemas::emit_expand_from_terms</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">sch</span><span class="plain-syntax">, &amp;</span><span class="identifier-syntax">pt1</span><span class="plain-syntax">, &amp;</span><span class="identifier-syntax">pt2</span><span class="plain-syntax">, </span><span class="identifier-syntax">semicolon</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">Calculus::Schemas::emit_val_expand_from_locals</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">Calculus::Schemas::emit_val_expand_from_locals</span></span>:<br/>Relations - <a href="7-rlt.html#SP9_2_4">&#167;9.2.4</a>, <a href="7-rlt.html#SP23_2">&#167;23.2</a>, <a href="7-rlt.html#SP23_3">&#167;23.3</a>, <a href="7-rlt.html#SP23_4">&#167;23.4</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">i6_schema</span><span class="plain-syntax"> *</span><span class="identifier-syntax">sch</span><span class="plain-syntax">,</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">local_variable</span><span class="plain-syntax"> *</span><span class="identifier-syntax">v1</span><span class="plain-syntax">, </span><span class="reserved-syntax">local_variable</span><span class="plain-syntax"> *</span><span class="identifier-syntax">v2</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">pcalc_term</span><span class="plain-syntax"> </span><span class="identifier-syntax">pt1</span><span class="plain-syntax"> = </span><a href="11-tr.html#SP3" class="function-link"><span class="function-syntax">Calculus::Terms::new_constant</span></a><span class="plain-syntax">(</span>
<span class="plain-syntax"> </span><a href="14-lv.html#SP2" class="function-link"><span class="function-syntax">Lvalues::new_LOCAL_VARIABLE</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">EMPTY_WORDING</span><span class="plain-syntax">, </span><span class="identifier-syntax">v1</span><span class="plain-syntax">));</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">pcalc_term</span><span class="plain-syntax"> </span><span class="identifier-syntax">pt2</span><span class="plain-syntax"> = </span><a href="11-tr.html#SP3" class="function-link"><span class="function-syntax">Calculus::Terms::new_constant</span></a><span class="plain-syntax">(</span>
<span class="plain-syntax"> </span><a href="14-lv.html#SP2" class="function-link"><span class="function-syntax">Lvalues::new_LOCAL_VARIABLE</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">EMPTY_WORDING</span><span class="plain-syntax">, </span><span class="identifier-syntax">v2</span><span class="plain-syntax">));</span>
<span class="plain-syntax"> </span><a href="12-is.html#SP5" class="function-link"><span class="function-syntax">Calculus::Schemas::emit_val_expand_from_terms</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">sch</span><span class="plain-syntax">, &amp;</span><span class="identifier-syntax">pt1</span><span class="plain-syntax">, &amp;</span><span class="identifier-syntax">pt2</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">Calculus::Schemas::emit_val_expand_from_terms</span><span class="plain-syntax">(</span><span class="reserved-syntax">i6_schema</span><span class="plain-syntax"> *</span><span class="identifier-syntax">sch</span><span class="plain-syntax">,</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">pcalc_term</span><span class="plain-syntax"> *</span><span class="identifier-syntax">pt1</span><span class="plain-syntax">, </span><span class="reserved-syntax">pcalc_term</span><span class="plain-syntax"> *</span><span class="identifier-syntax">pt2</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">i6s_emission_state</span><span class="plain-syntax"> </span><span class="identifier-syntax">ems</span><span class="plain-syntax"> = </span><a href="12-is.html#SP5" class="function-link"><span class="function-syntax">Calculus::Schemas::state</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">pt1</span><span class="plain-syntax">, </span><span class="identifier-syntax">pt2</span><span class="plain-syntax">, </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">, </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><a href="12-is.html#SP6" class="function-link"><span class="function-syntax">Calculus::Schemas::sch_emit_inner</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">sch</span><span class="plain-syntax">, &amp;</span><span class="identifier-syntax">ems</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">typedef</span><span class="plain-syntax"> </span><span class="reserved-syntax">struct</span><span class="plain-syntax"> </span><span class="reserved-syntax">i6s_emission_state</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">text_stream</span><span class="plain-syntax"> *</span><span class="identifier-syntax">ops_textual</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="reserved-syntax">pcalc_term</span><span class="plain-syntax"> *</span><span class="identifier-syntax">ops_termwise</span><span class="plain-syntax">[2];</span>
<span class="plain-syntax">} </span><span class="reserved-syntax">i6s_emission_state</span><span class="plain-syntax">;</span>
<span class="reserved-syntax">i6s_emission_state</span><span class="plain-syntax"> </span><span class="function-syntax">Calculus::Schemas::state</span><span class="plain-syntax">(</span><span class="reserved-syntax">pcalc_term</span><span class="plain-syntax"> *</span><span class="identifier-syntax">pt1</span><span class="plain-syntax">, </span><span class="reserved-syntax">pcalc_term</span><span class="plain-syntax"> *</span><span class="identifier-syntax">pt2</span><span class="plain-syntax">, </span><span class="identifier-syntax">text_stream</span><span class="plain-syntax"> *</span><span class="identifier-syntax">str1</span><span class="plain-syntax">, </span><span class="identifier-syntax">text_stream</span><span class="plain-syntax"> *</span><span class="identifier-syntax">str2</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">i6s_emission_state</span><span class="plain-syntax"> </span><span class="identifier-syntax">ems</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">ems</span><span class="plain-syntax">.</span><span class="element-syntax">ops_textual</span><span class="plain-syntax">[0] = </span><span class="identifier-syntax">str1</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">ems</span><span class="plain-syntax">.</span><span class="element-syntax">ops_textual</span><span class="plain-syntax">[1] = </span><span class="identifier-syntax">str2</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">ems</span><span class="plain-syntax">.</span><span class="element-syntax">ops_termwise</span><span class="plain-syntax">[0] = </span><span class="identifier-syntax">pt1</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">ems</span><span class="plain-syntax">.</span><span class="element-syntax">ops_termwise</span><span class="plain-syntax">[1] = </span><span class="identifier-syntax">pt2</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">ems</span><span class="plain-syntax">;</span>
<span class="plain-syntax">}</span>
</pre>
<ul class="endnotetexts"><li>The structure i6s_emission_state is private to this section.</li></ul>
<p class="commentary firstcommentary"><a id="SP6"></a><b>&#167;6. </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">Calculus::Schemas::sch_emit_inner</span><button class="popup" onclick="togglePopup('usagePopup8')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup8">Usage of <span class="code-font"><span class="function-syntax">Calculus::Schemas::sch_emit_inner</span></span>:<br/><a href="12-is.html#SP5">&#167;5</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">i6_schema</span><span class="plain-syntax"> *</span><span class="identifier-syntax">sch</span><span class="plain-syntax">, </span><span class="reserved-syntax">i6s_emission_state</span><span class="plain-syntax"> *</span><span class="identifier-syntax">ems</span><span class="plain-syntax">, </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">code_mode</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">ems</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">ops_textual</span><span class="plain-syntax">[0]) || (</span><span class="identifier-syntax">ems</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">ops_textual</span><span class="plain-syntax">[1])) </span><span class="identifier-syntax">internal_error</span><span class="plain-syntax">(</span><span class="string-syntax">"Zap"</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><a href="12-is.html#SP8" class="function-link"><span class="function-syntax">Calculus::Schemas::sch_type_parameter</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">ems</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">ops_termwise</span><span class="plain-syntax">[0]);</span>
<span class="plain-syntax"> </span><a href="12-is.html#SP8" class="function-link"><span class="function-syntax">Calculus::Schemas::sch_type_parameter</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">ems</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">ops_termwise</span><span class="plain-syntax">[1]);</span>
<span class="plain-syntax"> </span><span class="constant-syntax">BEGIN_COMPILATION_MODE</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">sch</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">compiled</span><span class="plain-syntax">-&gt;</span><span class="identifier-syntax">dereference_mode</span><span class="plain-syntax">)</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">COMPILATION_MODE_EXIT</span><span class="plain-syntax">(</span><span class="constant-syntax">DEREFERENCE_POINTERS_CMODE</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">value_holster</span><span class="plain-syntax"> </span><span class="identifier-syntax">VH</span><span class="plain-syntax"> = </span><span class="identifier-syntax">Holsters::new</span><span class="plain-syntax">(</span><span class="identifier-syntax">INTER_VAL_VHMODE</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">val_mode</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">code_mode</span><span class="plain-syntax"> == </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">) </span><span class="identifier-syntax">val_mode</span><span class="plain-syntax"> = </span><span class="identifier-syntax">TRUE</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">EmitInterSchemas::emit</span><span class="plain-syntax">(</span><a href="27-em.html#SP2" class="function-link"><span class="function-syntax">Emit::tree</span></a><span class="plain-syntax">(), &amp;</span><span class="identifier-syntax">VH</span><span class="plain-syntax">, </span><span class="identifier-syntax">sch</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">compiled</span><span class="plain-syntax">, </span><span class="identifier-syntax">ems</span><span class="plain-syntax">, </span><span class="identifier-syntax">code_mode</span><span class="plain-syntax">, </span><span class="identifier-syntax">val_mode</span><span class="plain-syntax">, </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">, </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">,</span>
<span class="plain-syntax"> &amp;</span><a href="12-is.html#SP6" class="function-link"><span class="function-syntax">Calculus::Schemas::sch_inline</span></a><span class="plain-syntax">, </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="constant-syntax">END_COMPILATION_MODE</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">Calculus::Schemas::sch_inline</span><span class="plain-syntax">(</span><span class="identifier-syntax">value_holster</span><span class="plain-syntax"> *</span><span class="identifier-syntax">VH</span><span class="plain-syntax">,</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">inter_schema_token</span><span class="plain-syntax"> *</span><span class="identifier-syntax">t</span><span class="plain-syntax">, </span><span class="reserved-syntax">void</span><span class="plain-syntax"> *</span><span class="identifier-syntax">ems_s</span><span class="plain-syntax">, </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">prim_cat</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">i6s_emission_state</span><span class="plain-syntax"> *</span><span class="identifier-syntax">ems</span><span class="plain-syntax"> = (</span><span class="reserved-syntax">i6s_emission_state</span><span class="plain-syntax"> *) </span><span class="identifier-syntax">ems_s</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="constant-syntax">BEGIN_COMPILATION_MODE</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">give_kind_id</span><span class="plain-syntax"> = </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">, </span><span class="identifier-syntax">give_comparison_routine</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">dereference_property</span><span class="plain-syntax"> = </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">, </span><span class="identifier-syntax">adopt_local_stack_frame</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">cast_to_kind_of_other_term</span><span class="plain-syntax"> = </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">, </span><span class="identifier-syntax">by_reference</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">t</span><span class="plain-syntax">-&gt;</span><span class="identifier-syntax">inline_modifiers</span><span class="plain-syntax"> &amp; </span><span class="identifier-syntax">PERMIT_LOCALS_IN_TEXT_CMODE_ISSBM</span><span class="plain-syntax">)</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">COMPILATION_MODE_ENTER</span><span class="plain-syntax">(</span><span class="constant-syntax">PERMIT_LOCALS_IN_TEXT_CMODE</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">t</span><span class="plain-syntax">-&gt;</span><span class="identifier-syntax">inline_modifiers</span><span class="plain-syntax"> &amp; </span><span class="identifier-syntax">TREAT_AS_LVALUE_CMODE_ISSBM</span><span class="plain-syntax">)</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">COMPILATION_MODE_ENTER</span><span class="plain-syntax">(</span><span class="constant-syntax">TREAT_AS_LVALUE_CMODE</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">t</span><span class="plain-syntax">-&gt;</span><span class="identifier-syntax">inline_modifiers</span><span class="plain-syntax"> &amp; </span><span class="identifier-syntax">JUST_ROUTINE_CMODE_ISSBM</span><span class="plain-syntax">)</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">COMPILATION_MODE_ENTER</span><span class="plain-syntax">(</span><span class="constant-syntax">JUST_ROUTINE_CMODE</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">t</span><span class="plain-syntax">-&gt;</span><span class="identifier-syntax">inline_modifiers</span><span class="plain-syntax"> &amp; </span><span class="identifier-syntax">GIVE_KIND_ID_ISSBM</span><span class="plain-syntax">) </span><span class="identifier-syntax">give_kind_id</span><span class="plain-syntax"> = </span><span class="identifier-syntax">TRUE</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">t</span><span class="plain-syntax">-&gt;</span><span class="identifier-syntax">inline_modifiers</span><span class="plain-syntax"> &amp; </span><span class="identifier-syntax">GIVE_COMPARISON_ROUTINE_ISSBM</span><span class="plain-syntax">) </span><span class="identifier-syntax">give_comparison_routine</span><span class="plain-syntax"> = </span><span class="identifier-syntax">TRUE</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">t</span><span class="plain-syntax">-&gt;</span><span class="identifier-syntax">inline_modifiers</span><span class="plain-syntax"> &amp; </span><span class="identifier-syntax">DEREFERENCE_PROPERTY_ISSBM</span><span class="plain-syntax">) </span><span class="identifier-syntax">dereference_property</span><span class="plain-syntax"> = </span><span class="identifier-syntax">TRUE</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">t</span><span class="plain-syntax">-&gt;</span><span class="identifier-syntax">inline_modifiers</span><span class="plain-syntax"> &amp; </span><span class="identifier-syntax">ADOPT_LOCAL_STACK_FRAME_ISSBM</span><span class="plain-syntax">) </span><span class="identifier-syntax">adopt_local_stack_frame</span><span class="plain-syntax"> = </span><span class="identifier-syntax">TRUE</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">t</span><span class="plain-syntax">-&gt;</span><span class="identifier-syntax">inline_modifiers</span><span class="plain-syntax"> &amp; </span><span class="identifier-syntax">CAST_TO_KIND_OF_OTHER_TERM_ISSBM</span><span class="plain-syntax">) </span><span class="identifier-syntax">cast_to_kind_of_other_term</span><span class="plain-syntax"> = </span><span class="identifier-syntax">TRUE</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">t</span><span class="plain-syntax">-&gt;</span><span class="identifier-syntax">inline_modifiers</span><span class="plain-syntax"> &amp; </span><span class="identifier-syntax">BY_REFERENCE_ISSBM</span><span class="plain-syntax">) </span><span class="identifier-syntax">by_reference</span><span class="plain-syntax"> = </span><span class="identifier-syntax">TRUE</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">t</span><span class="plain-syntax">-&gt;</span><span class="identifier-syntax">inline_command</span><span class="plain-syntax"> == </span><span class="identifier-syntax">substitute_ISINC</span><span class="plain-syntax">) </span><span class="named-paragraph-container code-font"><a href="12-is.html#SP6_1" class="named-paragraph-link"><span class="named-paragraph">Perform substitution</span><span class="named-paragraph-number">6.1</span></a></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">t</span><span class="plain-syntax">-&gt;</span><span class="identifier-syntax">inline_command</span><span class="plain-syntax"> == </span><span class="identifier-syntax">current_sentence_ISINC</span><span class="plain-syntax">) </span><span class="named-paragraph-container code-font"><a href="12-is.html#SP6_2" class="named-paragraph-link"><span class="named-paragraph">Perform current sentence</span><span class="named-paragraph-number">6.2</span></a></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">t</span><span class="plain-syntax">-&gt;</span><span class="identifier-syntax">inline_command</span><span class="plain-syntax"> == </span><span class="identifier-syntax">combine_ISINC</span><span class="plain-syntax">) </span><span class="named-paragraph-container code-font"><a href="12-is.html#SP6_3" class="named-paragraph-link"><span class="named-paragraph">Perform combine</span><span class="named-paragraph-number">6.3</span></a></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">"unimplemented command in schema"</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="constant-syntax">END_COMPILATION_MODE</span><span class="plain-syntax">;</span>
<span class="plain-syntax">}</span>
</pre>
<p class="commentary firstcommentary"><a id="SP6_1"></a><b>&#167;6.1. </b><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Perform substitution</span><span class="named-paragraph-number">6.1</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">switch</span><span class="plain-syntax"> (</span><span class="identifier-syntax">t</span><span class="plain-syntax">-&gt;</span><span class="identifier-syntax">constant_number</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">case</span><span class="plain-syntax"> </span><span class="constant-syntax">0</span><span class="plain-syntax">: {</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">kind</span><span class="plain-syntax"> *</span><span class="identifier-syntax">K</span><span class="plain-syntax"> = </span><span class="identifier-syntax">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">cast_to_kind_of_other_term</span><span class="plain-syntax">) </span><span class="identifier-syntax">K</span><span class="plain-syntax"> = </span><span class="identifier-syntax">ems</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">ops_termwise</span><span class="plain-syntax">[1]-&gt;</span><span class="element-syntax">term_checked_as_kind</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><a href="12-is.html#SP7" class="function-link"><span class="function-syntax">Calculus::Schemas::sch_emit_parameter</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">ems</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">ops_termwise</span><span class="plain-syntax">[0], </span><span class="identifier-syntax">give_kind_id</span><span class="plain-syntax">,</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">give_comparison_routine</span><span class="plain-syntax">, </span><span class="identifier-syntax">dereference_property</span><span class="plain-syntax">, </span><span class="identifier-syntax">K</span><span class="plain-syntax">, </span><span class="identifier-syntax">by_reference</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">break</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> }</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">case</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">rule</span><span class="plain-syntax"> *</span><span class="identifier-syntax">R</span><span class="plain-syntax"> = </span><span class="identifier-syntax">adopted_rule_for_compilation</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">M</span><span class="plain-syntax"> = </span><span class="identifier-syntax">adopted_marker_for_compilation</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">adopt_local_stack_frame</span><span class="plain-syntax">) &amp;&amp;</span>
<span class="plain-syntax"> (</span><a href="14-rv.html#SP19" class="function-link"><span class="function-syntax">Rvalues::is_CONSTANT_of_kind</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">ems</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">ops_termwise</span><span class="plain-syntax">[0]-&gt;</span><span class="element-syntax">constant</span><span class="plain-syntax">, </span><span class="identifier-syntax">K_response</span><span class="plain-syntax">))) {</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">adopted_rule_for_compilation</span><span class="plain-syntax"> =</span>
<span class="plain-syntax"> </span><a href="14-rv.html#SP2" class="function-link"><span class="function-syntax">Rvalues::to_rule</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">ems</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">ops_termwise</span><span class="plain-syntax">[0]-&gt;</span><span class="element-syntax">constant</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">adopted_marker_for_compilation</span><span class="plain-syntax"> =</span>
<span class="plain-syntax"> </span><a href="17-rs.html#SP10" class="function-link"><span class="function-syntax">Strings::get_marker_from_response_spec</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">ems</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">ops_termwise</span><span class="plain-syntax">[0]-&gt;</span><span class="element-syntax">constant</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> }</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">kind</span><span class="plain-syntax"> *</span><span class="identifier-syntax">K</span><span class="plain-syntax"> = </span><span class="identifier-syntax">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">cast_to_kind_of_other_term</span><span class="plain-syntax">) </span><span class="identifier-syntax">K</span><span class="plain-syntax"> = </span><span class="identifier-syntax">ems</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">ops_termwise</span><span class="plain-syntax">[0]-&gt;</span><span class="element-syntax">term_checked_as_kind</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><a href="12-is.html#SP7" class="function-link"><span class="function-syntax">Calculus::Schemas::sch_emit_parameter</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">ems</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">ops_termwise</span><span class="plain-syntax">[1],</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">give_kind_id</span><span class="plain-syntax">, </span><span class="identifier-syntax">give_comparison_routine</span><span class="plain-syntax">, </span><span class="identifier-syntax">dereference_property</span><span class="plain-syntax">, </span><span class="identifier-syntax">K</span><span class="plain-syntax">, </span><span class="identifier-syntax">by_reference</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">adopted_rule_for_compilation</span><span class="plain-syntax"> = </span><span class="identifier-syntax">R</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">adopted_marker_for_compilation</span><span class="plain-syntax"> = </span><span class="identifier-syntax">M</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">break</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> }</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">default:</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">internal_error</span><span class="plain-syntax">(</span><span class="string-syntax">"schemas are currently limited to *1 and *2"</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> }</span>
</pre>
<ul class="endnotetexts"><li>This code is used in <a href="12-is.html#SP6">&#167;6</a>.</li></ul>
<p class="commentary firstcommentary"><a id="SP6_2"></a><b>&#167;6.2. </b><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Perform current sentence</span><span class="named-paragraph-number">6.2</span></span><span class="comment-syntax"> =</span>
</p>
<pre class="displayed-code all-displayed-code code-font">
<span class="plain-syntax"> </span><span class="identifier-syntax">internal_error</span><span class="plain-syntax">(</span><span class="string-syntax">"Seems possible after all"</span><span class="plain-syntax">);</span>
</pre>
<ul class="endnotetexts"><li>This code is used in <a href="12-is.html#SP6">&#167;6</a>.</li></ul>
<p class="commentary firstcommentary"><a id="SP6_3"></a><b>&#167;6.3. </b><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Perform combine</span><span class="named-paragraph-number">6.3</span></span><span class="comment-syntax"> =</span>
</p>
<pre class="displayed-code all-displayed-code code-font">
<span class="plain-syntax"> </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">epar</span><span class="plain-syntax"> = </span><span class="identifier-syntax">TRUE</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> ((</span><span class="identifier-syntax">ems</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">ops_termwise</span><span class="plain-syntax">[0]) &amp;&amp; (</span><span class="identifier-syntax">ems</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">ops_termwise</span><span class="plain-syntax">[1])) {</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">kind</span><span class="plain-syntax"> *</span><span class="identifier-syntax">reln_K</span><span class="plain-syntax"> = </span><span class="identifier-syntax">ems</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">ops_termwise</span><span class="plain-syntax">[0]-&gt;</span><span class="element-syntax">term_checked_as_kind</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">kind</span><span class="plain-syntax"> *</span><span class="identifier-syntax">comb_K</span><span class="plain-syntax"> = </span><span class="identifier-syntax">ems</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">ops_termwise</span><span class="plain-syntax">[1]-&gt;</span><span class="element-syntax">term_checked_as_kind</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> ((</span><span class="identifier-syntax">Kinds::get_construct</span><span class="plain-syntax">(</span><span class="identifier-syntax">reln_K</span><span class="plain-syntax">) == </span><span class="identifier-syntax">CON_relation</span><span class="plain-syntax">) &amp;&amp;</span>
<span class="plain-syntax"> (</span><span class="identifier-syntax">Kinds::get_construct</span><span class="plain-syntax">(</span><span class="identifier-syntax">comb_K</span><span class="plain-syntax">) == </span><span class="identifier-syntax">CON_combination</span><span class="plain-syntax">)) {</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">kind</span><span class="plain-syntax"> *</span><span class="identifier-syntax">req_A</span><span class="plain-syntax"> = </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">, *</span><span class="identifier-syntax">req_B</span><span class="plain-syntax"> = </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">, *</span><span class="identifier-syntax">found_A</span><span class="plain-syntax"> = </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">, *</span><span class="identifier-syntax">found_B</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">Kinds::binary_construction_material</span><span class="plain-syntax">(</span><span class="identifier-syntax">reln_K</span><span class="plain-syntax">, &amp;</span><span class="identifier-syntax">req_A</span><span class="plain-syntax">, &amp;</span><span class="identifier-syntax">req_B</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">Kinds::binary_construction_material</span><span class="plain-syntax">(</span><span class="identifier-syntax">comb_K</span><span class="plain-syntax">, &amp;</span><span class="identifier-syntax">found_A</span><span class="plain-syntax">, &amp;</span><span class="identifier-syntax">found_B</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">parse_node</span><span class="plain-syntax"> *</span><span class="identifier-syntax">spec_A</span><span class="plain-syntax"> = </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">, *</span><span class="identifier-syntax">spec_B</span><span class="plain-syntax"> = </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><a href="14-rv.html#SP17" class="function-link"><span class="function-syntax">Rvalues::to_pair</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">ems</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">ops_termwise</span><span class="plain-syntax">[1]-&gt;</span><span class="element-syntax">constant</span><span class="plain-syntax">, &amp;</span><span class="identifier-syntax">spec_A</span><span class="plain-syntax">, &amp;</span><span class="identifier-syntax">spec_B</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (!((</span><span class="identifier-syntax">Kinds::Behaviour::uses_pointer_values</span><span class="plain-syntax">(</span><span class="identifier-syntax">req_A</span><span class="plain-syntax">)) &amp;&amp; (</span><span class="identifier-syntax">Kinds::Behaviour::definite</span><span class="plain-syntax">(</span><span class="identifier-syntax">req_A</span><span class="plain-syntax">))))</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">req_A</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">Kinds::Behaviour::uses_pointer_values</span><span class="plain-syntax">(</span><span class="identifier-syntax">req_B</span><span class="plain-syntax">)) &amp;&amp; (</span><span class="identifier-syntax">Kinds::Behaviour::definite</span><span class="plain-syntax">(</span><span class="identifier-syntax">req_B</span><span class="plain-syntax">))))</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">req_B</span><span class="plain-syntax"> = </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><a href="14-cfs.html#SP7" class="function-link"><span class="function-syntax">Specifications::Compiler::emit_to_kind</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">spec_A</span><span class="plain-syntax">, </span><span class="identifier-syntax">req_A</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><a href="14-cfs.html#SP7" class="function-link"><span class="function-syntax">Specifications::Compiler::emit_to_kind</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">spec_B</span><span class="plain-syntax">, </span><span class="identifier-syntax">req_B</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">epar</span><span class="plain-syntax"> = </span><span class="identifier-syntax">FALSE</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">epar</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><a href="12-is.html#SP7" class="function-link"><span class="function-syntax">Calculus::Schemas::sch_emit_parameter</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">ems</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">ops_termwise</span><span class="plain-syntax">[1],</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">give_kind_id</span><span class="plain-syntax">, </span><span class="identifier-syntax">give_comparison_routine</span><span class="plain-syntax">, </span><span class="identifier-syntax">dereference_property</span><span class="plain-syntax">, </span><span class="identifier-syntax">NULL</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">Produce::val</span><span class="plain-syntax">(</span><a href="27-em.html#SP2" class="function-link"><span class="function-syntax">Emit::tree</span></a><span class="plain-syntax">(), </span><span class="identifier-syntax">K_number</span><span class="plain-syntax">, </span><span class="identifier-syntax">LITERAL_IVAL</span><span class="plain-syntax">, </span><span class="constant-syntax">0</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> }</span>
</pre>
<ul class="endnotetexts"><li>This code is used in <a href="12-is.html#SP6">&#167;6</a>.</li></ul>
<p class="commentary firstcommentary"><a id="SP7"></a><b>&#167;7. </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">Calculus::Schemas::sch_emit_parameter</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">Calculus::Schemas::sch_emit_parameter</span></span>:<br/><a href="12-is.html#SP6_1">&#167;6.1</a>, <a href="12-is.html#SP6_3">&#167;6.3</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">pcalc_term</span><span class="plain-syntax"> *</span><span class="identifier-syntax">pt</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">give_kind_id</span><span class="plain-syntax">, </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">give_comparison_routine</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">dereference_property</span><span class="plain-syntax">, </span><span class="identifier-syntax">kind</span><span class="plain-syntax"> *</span><span class="identifier-syntax">cast_to</span><span class="plain-syntax">, </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">by_reference</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">give_kind_id</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">pt</span><span class="plain-syntax">) </span><a href="13-rsfk.html#SP11" class="function-link"><span class="function-syntax">Kinds::RunTime::emit_weak_id_as_val</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">pt</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">term_checked_as_kind</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">give_comparison_routine</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">inter_name</span><span class="plain-syntax"> *</span><span class="identifier-syntax">cr</span><span class="plain-syntax"> = </span><a href="27-hr.html#SP4" class="function-link"><span class="function-syntax">Hierarchy::find</span></a><span class="plain-syntax">(</span><span class="constant-syntax">SIGNEDCOMPARE_HL</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">pt</span><span class="plain-syntax">) &amp;&amp; (</span><span class="identifier-syntax">pt</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">term_checked_as_kind</span><span class="plain-syntax">)) {</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">inter_name</span><span class="plain-syntax"> *</span><span class="identifier-syntax">specialised_cr</span><span class="plain-syntax"> =</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">Kinds::Behaviour::get_comparison_routine_as_iname</span><span class="plain-syntax">(</span><span class="identifier-syntax">pt</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">term_checked_as_kind</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">specialised_cr</span><span class="plain-syntax">) </span><span class="identifier-syntax">cr</span><span class="plain-syntax"> = </span><span class="identifier-syntax">specialised_cr</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> }</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">Produce::val_iname</span><span class="plain-syntax">(</span><a href="27-em.html#SP2" class="function-link"><span class="function-syntax">Emit::tree</span></a><span class="plain-syntax">(), </span><span class="identifier-syntax">K_value</span><span class="plain-syntax">, </span><span class="identifier-syntax">cr</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">by_reference</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="constant-syntax">BEGIN_COMPILATION_MODE</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">COMPILATION_MODE_EXIT</span><span class="plain-syntax">(</span><span class="constant-syntax">DEREFERENCE_POINTERS_CMODE</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">pcalc_term</span><span class="plain-syntax"> </span><span class="identifier-syntax">cpt</span><span class="plain-syntax"> = *</span><span class="identifier-syntax">pt</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><a href="11-tr.html#SP9" class="function-link"><span class="function-syntax">Calculus::Terms::emit</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">cpt</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="constant-syntax">END_COMPILATION_MODE</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">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">down</span><span class="plain-syntax"> = </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><a href="13-rsfk.html#SP9" class="function-link"><span class="function-syntax">Kinds::RunTime::emit_cast_call</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">pt</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">term_checked_as_kind</span><span class="plain-syntax">, </span><span class="identifier-syntax">cast_to</span><span class="plain-syntax">, &amp;</span><span class="identifier-syntax">down</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">pcalc_term</span><span class="plain-syntax"> </span><span class="identifier-syntax">cpt</span><span class="plain-syntax"> = *</span><span class="identifier-syntax">pt</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">dereference_property</span><span class="plain-syntax">) &amp;&amp;</span>
<span class="plain-syntax"> (</span><span class="identifier-syntax">Node::is</span><span class="plain-syntax">(</span><span class="identifier-syntax">cpt</span><span class="plain-syntax">.</span><span class="element-syntax">constant</span><span class="plain-syntax">, </span><span class="constant-syntax">CONSTANT_NT</span><span class="plain-syntax">))) {</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">kind</span><span class="plain-syntax"> *</span><span class="identifier-syntax">K</span><span class="plain-syntax"> = </span><a href="14-sp.html#SP1" class="function-link"><span class="function-syntax">Specifications::to_kind</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">cpt</span><span class="plain-syntax">.</span><span class="element-syntax">constant</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">Kinds::get_construct</span><span class="plain-syntax">(</span><span class="identifier-syntax">K</span><span class="plain-syntax">) == </span><span class="identifier-syntax">CON_property</span><span class="plain-syntax">)</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">cpt</span><span class="plain-syntax"> = </span><a href="11-tr.html#SP3" class="function-link"><span class="function-syntax">Calculus::Terms::new_constant</span></a><span class="plain-syntax">(</span>
<span class="plain-syntax"> </span><a href="14-lv.html#SP5" class="function-link"><span class="function-syntax">Lvalues::new_PROPERTY_VALUE</span></a><span class="plain-syntax">(</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">Node::duplicate</span><span class="plain-syntax">(</span><span class="identifier-syntax">cpt</span><span class="plain-syntax">.</span><span class="element-syntax">constant</span><span class="plain-syntax">),</span>
<span class="plain-syntax"> </span><a href="14-rv.html#SP5" class="function-link"><span class="function-syntax">Rvalues::new_self_object_constant</span></a><span class="plain-syntax">()));</span>
<span class="plain-syntax"> }</span>
<span class="plain-syntax"> </span><a href="11-tr.html#SP9" class="function-link"><span class="function-syntax">Calculus::Terms::emit</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">cpt</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">down</span><span class="plain-syntax">) </span><span class="identifier-syntax">Produce::up</span><span class="plain-syntax">(</span><a href="27-em.html#SP2" class="function-link"><span class="function-syntax">Emit::tree</span></a><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="SP8"></a><b>&#167;8. </b>Last and very much least: in case we receive an untypechecked term, we fill
in its kind.
</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">Calculus::Schemas::sch_type_parameter</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">Calculus::Schemas::sch_type_parameter</span></span>:<br/><a href="12-is.html#SP6">&#167;6</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">pcalc_term</span><span class="plain-syntax"> *</span><span class="identifier-syntax">pt</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">pt</span><span class="plain-syntax">) &amp;&amp; (</span><span class="identifier-syntax">pt</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">constant</span><span class="plain-syntax">) &amp;&amp; (</span><span class="identifier-syntax">pt</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">term_checked_as_kind</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">pt</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">term_checked_as_kind</span><span class="plain-syntax"> = </span><a href="14-sp.html#SP1" class="function-link"><span class="function-syntax">Specifications::to_kind</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">pt</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">constant</span><span class="plain-syntax">);</span>
<span class="plain-syntax">}</span>
</pre>
<p class="commentary firstcommentary"><a id="SP9"></a><b>&#167;9. Logging schemas. </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">Calculus::Schemas::log</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">Calculus::Schemas::log</span></span>:<br/>Core Module - <a href="1-cm.html#SP5">&#167;5</a>, <a href="1-cm.html#SP6_6">&#167;6.6</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">i6_schema</span><span class="plain-syntax"> *</span><span class="identifier-syntax">sch</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><a href="12-is.html#SP9" class="function-link"><span class="function-syntax">Calculus::Schemas::write</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">DL</span><span class="plain-syntax">, </span><span class="identifier-syntax">sch</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">Calculus::Schemas::write</span><span class="plain-syntax">(</span><span class="identifier-syntax">OUTPUT_STREAM</span><span class="plain-syntax">, </span><span class="reserved-syntax">i6_schema</span><span class="plain-syntax"> *</span><span class="identifier-syntax">sch</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">sch</span><span class="plain-syntax"> == </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">) </span><span class="identifier-syntax">WRITE</span><span class="plain-syntax">(</span><span class="string-syntax">"&lt;null schema&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="identifier-syntax">WRITE</span><span class="plain-syntax">(</span><span class="string-syntax">"&lt;schema: %S&gt;"</span><span class="plain-syntax">, &amp;(</span><span class="identifier-syntax">sch</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">prototype</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">Calculus::Schemas::log_applied</span><span class="plain-syntax">(</span><span class="reserved-syntax">i6_schema</span><span class="plain-syntax"> *</span><span class="identifier-syntax">sch</span><span class="plain-syntax">, </span><span class="reserved-syntax">pcalc_term</span><span class="plain-syntax"> *</span><span class="identifier-syntax">pt1</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><a href="12-is.html#SP9" class="function-link"><span class="function-syntax">Calculus::Schemas::write_applied</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">DL</span><span class="plain-syntax">, </span><span class="identifier-syntax">sch</span><span class="plain-syntax">, </span><span class="identifier-syntax">pt1</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">Calculus::Schemas::write_applied</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">Calculus::Schemas::write_applied</span></span>:<br/>Terms - <a href="11-tr.html#SP10">&#167;10</a></span></button><span class="plain-syntax">(</span><span class="identifier-syntax">OUTPUT_STREAM</span><span class="plain-syntax">, </span><span class="reserved-syntax">i6_schema</span><span class="plain-syntax"> *</span><span class="identifier-syntax">sch</span><span class="plain-syntax">, </span><span class="reserved-syntax">pcalc_term</span><span class="plain-syntax"> *</span><span class="identifier-syntax">pt1</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">sch</span><span class="plain-syntax"> == </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">) { </span><span class="identifier-syntax">WRITE</span><span class="plain-syntax">(</span><span class="string-syntax">"&lt;null schema&gt;"</span><span class="plain-syntax">); </span><span class="reserved-syntax">return</span><span class="plain-syntax">; }</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">else</span><span class="plain-syntax"> {</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">WRITE</span><span class="plain-syntax">(</span><span class="string-syntax">"&lt;%S : "</span><span class="plain-syntax">, &amp;(</span><span class="identifier-syntax">sch</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">prototype</span><span class="plain-syntax">));</span>
<span class="plain-syntax"> </span><a href="11-tr.html#SP10" class="function-link"><span class="function-syntax">Calculus::Terms::write</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">OUT</span><span class="plain-syntax">, </span><span class="identifier-syntax">pt1</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">WRITE</span><span class="plain-syntax">(</span><span class="string-syntax">"&gt;"</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> }</span>
<span class="plain-syntax">}</span>
</pre>
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