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<!--Weave of 'Text Literals' generated by Inweb-->
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<div class="breadcrumbs">
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<ul class="crumbs"><li><a href="../index.html">Home</a></li><li><a href="../compiler.html">Inform7 Modules</a></li><li><a href="index.html">core</a></li><li><a href="index.html#17">Chapter 17: Text Data</a></li><li><b>Text Literals</b></li></ul></div>
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<p class="purpose">In this section we compile text constants.</p>
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<p class="commentary firstcommentary"><a id="SP1" class="paragraph-anchor"></a><b>§1. </b>It might not seem necessary to do much about literal text, since we're
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compiling to what is already a high-enough level language to take care
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of that for us — that is, it seems reasonable just to translate
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</p>
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<blockquote>
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<p>say "Hello world."</p>
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</blockquote>
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<p class="commentary">straight into
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</p>
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<p class="commentary"><span class="extract"><span class="extract-syntax">print "Hello world.";</span></span>
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</p>
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<p class="commentary">The reason we don't do this is that we want string constants in the target
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virtual machine to have addresses in alphabetical order; then a simple
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unsigned comparison of packed addresses at run-time is equivalent to an
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alphabetical comparison of the text. (We make great use of this when
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sorting tables.) We can also ensure that two literal texts with the
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same contents are numerically equal, rather than being compiled twice over
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with two different addresses at which is stored duplicate data. So in fact
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we compile constants such as:
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</p>
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<p class="commentary"><span class="extract"><span class="extract-syntax">Constant TX_L_14 "Hello world.";</span></span>
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</p>
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<p class="commentary">and then refer to them as:
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</p>
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<p class="commentary"><span class="extract"><span class="extract-syntax">print TX_L_14;</span></span>
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</p>
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<p class="commentary">To do this we need to store all of the string constants in such a way that
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we can efficiently search and keep them in alphabetical order. We do this
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with a red-black tree: a form of balanced binary tree structure such that
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nodes appear in alphabetical order from left to right in the tree, but
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which has a roughly equal depth throughout, so that the number of string
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comparisons needed to search it is nearly the binary logarithm of the
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number of nodes. For an account of the theory, see Sedgewick, "Algorithms"
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(2nd edn, chap. 15). Each node in the tree is marked "red" or "black":
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</p>
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<pre class="definitions code-font"><span class="definition-keyword">define</span> <span class="constant-syntax">RED_NODE</span><span class="plain-syntax"> </span><span class="constant-syntax">1</span>
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<span class="definition-keyword">define</span> <span class="constant-syntax">BLACK_NODE</span><span class="plain-syntax"> </span><span class="constant-syntax">2</span>
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</pre>
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<p class="commentary firstcommentary"><a id="SP2" class="paragraph-anchor"></a><b>§2. </b>The nodes in the tree will be instances of the following structure:
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</p>
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<pre class="displayed-code all-displayed-code code-font">
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<span class="reserved-syntax">typedef</span><span class="plain-syntax"> </span><span class="reserved-syntax">struct</span><span class="plain-syntax"> </span><span class="reserved-syntax">literal_text</span><span class="plain-syntax"> {</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">lt_position</span><span class="plain-syntax">; </span><span class="comment-syntax"> position in the source of quoted text</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">as_boxed_quotation</span><span class="plain-syntax">; </span><span class="comment-syntax"> formatted for the Inform 6 </span><span class="extract"><span class="extract-syntax">box</span></span><span class="comment-syntax"> statement</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">bibliographic_conventions</span><span class="plain-syntax">; </span><span class="comment-syntax"> mostly for apostrophes</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">unescaped</span><span class="plain-syntax">; </span><span class="comment-syntax"> completely so</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">unexpanded</span><span class="plain-syntax">; </span><span class="comment-syntax"> don't expand single quotes to double</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">node_colour</span><span class="plain-syntax">; </span><span class="comment-syntax"> red or black: see above</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">struct</span><span class="plain-syntax"> </span><span class="reserved-syntax">literal_text</span><span class="plain-syntax"> *</span><span class="identifier-syntax">left_node</span><span class="plain-syntax">; </span><span class="comment-syntax"> within their red-black tree</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">struct</span><span class="plain-syntax"> </span><span class="reserved-syntax">literal_text</span><span class="plain-syntax"> *</span><span class="identifier-syntax">right_node</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">small_block_array_needed</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">struct</span><span class="plain-syntax"> </span><span class="identifier-syntax">inter_name</span><span class="plain-syntax"> *</span><span class="identifier-syntax">lt_iname</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">struct</span><span class="plain-syntax"> </span><span class="identifier-syntax">inter_name</span><span class="plain-syntax"> *</span><span class="identifier-syntax">lt_sba_iname</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">CLASS_DEFINITION</span>
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<span class="plain-syntax">} </span><span class="reserved-syntax">literal_text</span><span class="plain-syntax">;</span>
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</pre>
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<ul class="endnotetexts"><li>The structure literal_text is private to this section.</li></ul>
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<p class="commentary firstcommentary"><a id="SP3" class="paragraph-anchor"></a><b>§3. </b>The tree is always connected, with a single root node. The so-called Z node
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is a special node representing a leaf with no contents, Z presumably standing
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for zero.
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</p>
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<pre class="displayed-code all-displayed-code code-font">
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<span class="reserved-syntax">literal_text</span><span class="plain-syntax"> *</span><span class="identifier-syntax">root_of_literal_text</span><span class="plain-syntax"> = </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">;</span>
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<span class="reserved-syntax">literal_text</span><span class="plain-syntax"> *</span><span class="identifier-syntax">z_node</span><span class="plain-syntax"> = </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">;</span>
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</pre>
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<p class="commentary firstcommentary"><a id="SP4" class="paragraph-anchor"></a><b>§4. </b>There are two exceptions. One is that the empty text <span class="extract"><span class="extract-syntax">""</span></span> is compiled to
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a special value <span class="extract"><span class="extract-syntax">EMPTY_TEXT_VALUE</span></span>, not to a <span class="extract"><span class="extract-syntax">TX_L_*</span></span> constant, since we need
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it always to be present whether or not it occurs in the source text as such.
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</p>
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<p class="commentary">The other is that Inform is sometimes compiling text not to its output code
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but to a metadata file like the XML iFiction record instead, which takes a
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more literal approach to literal text. So we can force it into a mode which
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short-circuits the above mechanism:
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</p>
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<pre class="displayed-code all-displayed-code code-font">
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<span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">encode_constant_text_bibliographically</span><span class="plain-syntax"> = </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">; </span><span class="comment-syntax"> Compile literal text semi-literally</span>
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</pre>
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<p class="commentary firstcommentary"><a id="SP5" class="paragraph-anchor"></a><b>§5. </b>We are allowed to flag one text where ordinary apostrophe-to-double-quote
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substitution doesn't occur: this is used for the title at the top of the
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source text, and nothing else.
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</p>
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<pre class="displayed-code all-displayed-code code-font">
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<span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">wn_quote_suppressed</span><span class="plain-syntax"> = -1;</span>
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<span class="reserved-syntax">void</span><span class="plain-syntax"> </span><span class="function-syntax">Strings::TextLiterals::suppress_quote_expansion</span><span class="plain-syntax">(</span><span class="identifier-syntax">wording</span><span class="plain-syntax"> </span><span class="identifier-syntax">W</span><span class="plain-syntax">) {</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">wn_quote_suppressed</span><span class="plain-syntax"> = </span><span class="identifier-syntax">Wordings::first_wn</span><span class="plain-syntax">(</span><span class="identifier-syntax">W</span><span class="plain-syntax">);</span>
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<span class="plain-syntax">}</span>
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</pre>
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<p class="commentary firstcommentary"><a id="SP6" class="paragraph-anchor"></a><b>§6. </b>The following creates a node; the word number is the location of the text
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in the source.
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</p>
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<pre class="displayed-code all-displayed-code code-font">
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<span class="reserved-syntax">literal_text</span><span class="plain-syntax"> *</span><span class="function-syntax">Strings::TextLiterals::lt_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">Strings::TextLiterals::lt_new</span></span>:<br/><a href="17-tl.html#SP9_1">§9.1</a>, <a href="17-tl.html#SP9_2">§9.2</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">w1</span><span class="plain-syntax">, </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">colour</span><span class="plain-syntax">) {</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">literal_text</span><span class="plain-syntax"> *</span><span class="identifier-syntax">x</span><span class="plain-syntax"> = </span><span class="identifier-syntax">CREATE</span><span class="plain-syntax">(</span><span class="reserved-syntax">literal_text</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">x</span><span class="plain-syntax">-></span><span class="element-syntax">left_node</span><span class="plain-syntax"> = </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">x</span><span class="plain-syntax">-></span><span class="element-syntax">right_node</span><span class="plain-syntax"> = </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">x</span><span class="plain-syntax">-></span><span class="element-syntax">node_colour</span><span class="plain-syntax"> = </span><span class="identifier-syntax">colour</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">x</span><span class="plain-syntax">-></span><span class="element-syntax">lt_position</span><span class="plain-syntax"> = </span><span class="identifier-syntax">w1</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">x</span><span class="plain-syntax">-></span><span class="element-syntax">as_boxed_quotation</span><span class="plain-syntax"> = </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">x</span><span class="plain-syntax">-></span><span class="element-syntax">bibliographic_conventions</span><span class="plain-syntax"> = </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">x</span><span class="plain-syntax">-></span><span class="element-syntax">unescaped</span><span class="plain-syntax"> = </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">x</span><span class="plain-syntax">-></span><span class="element-syntax">unexpanded</span><span class="plain-syntax"> = </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">x</span><span class="plain-syntax">-></span><span class="element-syntax">small_block_array_needed</span><span class="plain-syntax"> = </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">x</span><span class="plain-syntax">-></span><span class="element-syntax">lt_sba_iname</span><span class="plain-syntax"> = </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">package_request</span><span class="plain-syntax"> *</span><span class="identifier-syntax">PR</span><span class="plain-syntax"> = </span><a href="27-hr.html#SP4" class="function-link"><span class="function-syntax">Hierarchy::package_in_enclosure</span></a><span class="plain-syntax">(</span><span class="constant-syntax">LITERALS_HAP</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">x</span><span class="plain-syntax">-></span><span class="element-syntax">lt_iname</span><span class="plain-syntax"> = </span><a href="27-hr.html#SP4" class="function-link"><span class="function-syntax">Hierarchy::make_iname_in</span></a><span class="plain-syntax">(</span><span class="constant-syntax">TEXT_LITERAL_HL</span><span class="plain-syntax">, </span><span class="identifier-syntax">PR</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">Produce::annotate_i</span><span class="plain-syntax">(</span><span class="identifier-syntax">x</span><span class="plain-syntax">-></span><span class="element-syntax">lt_iname</span><span class="plain-syntax">, </span><span class="identifier-syntax">TEXT_LITERAL_IANN</span><span class="plain-syntax">, </span><span class="constant-syntax">1</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> ((</span><span class="identifier-syntax">wn_quote_suppressed</span><span class="plain-syntax"> >= </span><span class="constant-syntax">0</span><span class="plain-syntax">) && (</span><span class="identifier-syntax">w1</span><span class="plain-syntax"> == </span><span class="identifier-syntax">wn_quote_suppressed</span><span class="plain-syntax">)) </span><span class="identifier-syntax">x</span><span class="plain-syntax">-></span><span class="element-syntax">unexpanded</span><span class="plain-syntax"> = </span><span class="identifier-syntax">TRUE</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">x</span><span class="plain-syntax">;</span>
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<span class="plain-syntax">}</span>
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</pre>
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<p class="commentary firstcommentary"><a id="SP7" class="paragraph-anchor"></a><b>§7. </b>And this utility compares the text at a given source position with the
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contents of a node in the tree:
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</p>
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<pre class="displayed-code all-displayed-code code-font">
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<span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="function-syntax">Strings::TextLiterals::lt_cmp</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">Strings::TextLiterals::lt_cmp</span></span>:<br/><a href="17-tl.html#SP9_2">§9.2</a>, <a href="17-tl.html#SP9_2_2_1">§9.2.2.1</a>, <a href="17-tl.html#SP10">§10</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">w1</span><span class="plain-syntax">, </span><span class="reserved-syntax">literal_text</span><span class="plain-syntax"> *</span><span class="identifier-syntax">lt</span><span class="plain-syntax">) {</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">lt</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="constant-syntax">1</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">lt</span><span class="plain-syntax">-></span><span class="element-syntax">lt_position</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="constant-syntax">1</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">Wide::cmp</span><span class="plain-syntax">(</span><span class="identifier-syntax">Lexer::word_text</span><span class="plain-syntax">(</span><span class="identifier-syntax">w1</span><span class="plain-syntax">), </span><span class="identifier-syntax">Lexer::word_text</span><span class="plain-syntax">(</span><span class="identifier-syntax">lt</span><span class="plain-syntax">-></span><span class="element-syntax">lt_position</span><span class="plain-syntax">));</span>
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<span class="plain-syntax">}</span>
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</pre>
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<p class="commentary firstcommentary"><a id="SP8" class="paragraph-anchor"></a><b>§8. </b></p>
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|
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<pre class="displayed-code all-displayed-code code-font">
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|
<span class="reserved-syntax">void</span><span class="plain-syntax"> </span><span class="function-syntax">Strings::TextLiterals::mark_as_unescaped</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">Strings::TextLiterals::mark_as_unescaped</span></span>:<br/>Responses - <a href="17-rs.html#SP11_1_2">§11.1.2</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">literal_text</span><span class="plain-syntax"> *</span><span class="identifier-syntax">lt</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">lt</span><span class="plain-syntax">) </span><span class="identifier-syntax">lt</span><span class="plain-syntax">-></span><span class="element-syntax">unescaped</span><span class="plain-syntax"> = </span><span class="identifier-syntax">TRUE</span><span class="plain-syntax">;</span>
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|
<span class="plain-syntax">}</span>
|
|
</pre>
|
|
<p class="commentary firstcommentary"><a id="SP9" class="paragraph-anchor"></a><b>§9. </b>That's it for the preliminaries.
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|
</p>
|
|
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|
<pre class="displayed-code all-displayed-code code-font">
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|
<span class="reserved-syntax">literal_text</span><span class="plain-syntax"> *</span><span class="function-syntax">Strings::TextLiterals::compile_literal</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">Strings::TextLiterals::compile_literal</span></span>:<br/><a href="17-tl.html#SP11">§11</a>, <a href="17-tl.html#SP12">§12</a>, <a href="17-tl.html#SP15">§15</a><br/>Assertions - <a href="5-ass.html#SP6_3_39_2">§6.3.39.2</a></span></button><span class="plain-syntax">(</span><span class="identifier-syntax">value_holster</span><span class="plain-syntax"> *</span><span class="identifier-syntax">VH</span><span class="plain-syntax">, </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">write</span><span class="plain-syntax">, </span><span class="identifier-syntax">wording</span><span class="plain-syntax"> </span><span class="identifier-syntax">W</span><span class="plain-syntax">) {</span>
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|
<span class="plain-syntax"> </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">w1</span><span class="plain-syntax"> = </span><span class="identifier-syntax">Wordings::first_wn</span><span class="plain-syntax">(</span><span class="identifier-syntax">W</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">Wide::cmp</span><span class="plain-syntax">(</span><span class="identifier-syntax">Lexer::word_text</span><span class="plain-syntax">(</span><span class="identifier-syntax">w1</span><span class="plain-syntax">), </span><span class="identifier-syntax">L</span><span class="string-syntax">"\"\""</span><span class="plain-syntax">) == </span><span class="constant-syntax">0</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> ((</span><span class="identifier-syntax">write</span><span class="plain-syntax">) && (</span><span class="identifier-syntax">VH</span><span class="plain-syntax">)) </span><a href="27-em.html#SP4" class="function-link"><span class="function-syntax">Emit::holster</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">VH</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">EMPTY_TEXT_VALUE_HL</span><span class="plain-syntax">));</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> }</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">z_node</span><span class="plain-syntax"> == </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">) </span><span class="named-paragraph-container code-font"><a href="17-tl.html#SP9_1" class="named-paragraph-link"><span class="named-paragraph">Initialise the red-black tree</span><span class="named-paragraph-number">9.1</span></a></span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="17-tl.html#SP9_2" class="named-paragraph-link"><span class="named-paragraph">Search for the text as a key in the red-black tree</span><span class="named-paragraph-number">9.2</span></a></span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax">}</span>
|
|
</pre>
|
|
<p class="commentary firstcommentary"><a id="SP9_1" class="paragraph-anchor"></a><b>§9.1. </b>Note that the tree doesn't begin empty, but with a null node. Moreover,
|
|
the tree is always a strict binary tree in which every node always has two
|
|
children. One or both may be the Z node, and both children of Z are itself.
|
|
This sounds tricky, but minimises the number of comparisons needed to
|
|
check that branches are valid, the alternative being to allow some branches
|
|
which are null pointers.
|
|
</p>
|
|
|
|
<p class="commentary"><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Initialise the red-black tree</span><span class="named-paragraph-number">9.1</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">z_node</span><span class="plain-syntax"> = </span><a href="17-tl.html#SP6" class="function-link"><span class="function-syntax">Strings::TextLiterals::lt_new</span></a><span class="plain-syntax">(-1, </span><span class="constant-syntax">BLACK_NODE</span><span class="plain-syntax">); </span><span class="identifier-syntax">z_node</span><span class="plain-syntax">-></span><span class="element-syntax">left_node</span><span class="plain-syntax"> = </span><span class="identifier-syntax">z_node</span><span class="plain-syntax">; </span><span class="identifier-syntax">z_node</span><span class="plain-syntax">-></span><span class="element-syntax">right_node</span><span class="plain-syntax"> = </span><span class="identifier-syntax">z_node</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">root_of_literal_text</span><span class="plain-syntax"> = </span><a href="17-tl.html#SP6" class="function-link"><span class="function-syntax">Strings::TextLiterals::lt_new</span></a><span class="plain-syntax">(-1, </span><span class="constant-syntax">BLACK_NODE</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">root_of_literal_text</span><span class="plain-syntax">-></span><span class="element-syntax">left_node</span><span class="plain-syntax"> = </span><span class="identifier-syntax">z_node</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">root_of_literal_text</span><span class="plain-syntax">-></span><span class="element-syntax">right_node</span><span class="plain-syntax"> = </span><span class="identifier-syntax">z_node</span><span class="plain-syntax">;</span>
|
|
</pre>
|
|
<ul class="endnotetexts"><li>This code is used in <a href="17-tl.html#SP9">§9</a>.</li></ul>
|
|
<p class="commentary firstcommentary"><a id="SP9_2" class="paragraph-anchor"></a><b>§9.2. </b><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Search for the text as a key in the red-black tree</span><span class="named-paragraph-number">9.2</span></span><span class="comment-syntax"> =</span>
|
|
</p>
|
|
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">literal_text</span><span class="plain-syntax"> *</span><span class="identifier-syntax">x</span><span class="plain-syntax"> = </span><span class="identifier-syntax">root_of_literal_text</span><span class="plain-syntax">, *</span><span class="identifier-syntax">p</span><span class="plain-syntax"> = </span><span class="identifier-syntax">x</span><span class="plain-syntax">, *</span><span class="identifier-syntax">g</span><span class="plain-syntax"> = </span><span class="identifier-syntax">p</span><span class="plain-syntax">, *</span><span class="identifier-syntax">gg</span><span class="plain-syntax"> = </span><span class="identifier-syntax">g</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">went_left</span><span class="plain-syntax"> = </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">; </span><span class="comment-syntax"> redundant assignment to appease </span><span class="extract"><span class="extract-syntax">gcc -O2</span></span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">do</span><span class="plain-syntax"> {</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">gg</span><span class="plain-syntax"> = </span><span class="identifier-syntax">g</span><span class="plain-syntax">; </span><span class="identifier-syntax">g</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="identifier-syntax">x</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">sgn</span><span class="plain-syntax"> = </span><a href="17-tl.html#SP7" class="function-link"><span class="function-syntax">Strings::TextLiterals::lt_cmp</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">w1</span><span class="plain-syntax">, </span><span class="identifier-syntax">x</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">sgn</span><span class="plain-syntax"> == </span><span class="constant-syntax">0</span><span class="plain-syntax">) </span><span class="named-paragraph-container code-font"><a href="17-tl.html#SP9_2_1" class="named-paragraph-link"><span class="named-paragraph">Locate this as the new node</span><span class="named-paragraph-number">9.2.1</span></a></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">sgn</span><span class="plain-syntax"> < </span><span class="constant-syntax">0</span><span class="plain-syntax">) { </span><span class="identifier-syntax">went_left</span><span class="plain-syntax"> = </span><span class="identifier-syntax">TRUE</span><span class="plain-syntax">; </span><span class="identifier-syntax">x</span><span class="plain-syntax"> = </span><span class="identifier-syntax">x</span><span class="plain-syntax">-></span><span class="element-syntax">left_node</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">sgn</span><span class="plain-syntax"> > </span><span class="constant-syntax">0</span><span class="plain-syntax">) { </span><span class="identifier-syntax">went_left</span><span class="plain-syntax"> = </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">; </span><span class="identifier-syntax">x</span><span class="plain-syntax"> = </span><span class="identifier-syntax">x</span><span class="plain-syntax">-></span><span class="element-syntax">right_node</span><span class="plain-syntax">; }</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> ((</span><span class="identifier-syntax">x</span><span class="plain-syntax">-></span><span class="element-syntax">left_node</span><span class="plain-syntax">-></span><span class="element-syntax">node_colour</span><span class="plain-syntax"> == </span><span class="constant-syntax">RED_NODE</span><span class="plain-syntax">) &&</span>
|
|
<span class="plain-syntax"> (</span><span class="identifier-syntax">x</span><span class="plain-syntax">-></span><span class="element-syntax">right_node</span><span class="plain-syntax">-></span><span class="element-syntax">node_colour</span><span class="plain-syntax"> == </span><span class="constant-syntax">RED_NODE</span><span class="plain-syntax">))</span>
|
|
<span class="plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="17-tl.html#SP9_2_2" class="named-paragraph-link"><span class="named-paragraph">Perform a split</span><span class="named-paragraph-number">9.2.2</span></a></span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> } </span><span class="reserved-syntax">while</span><span class="plain-syntax"> (</span><span class="identifier-syntax">x</span><span class="plain-syntax"> != </span><span class="identifier-syntax">z_node</span><span class="plain-syntax">);</span>
|
|
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">x</span><span class="plain-syntax"> = </span><a href="17-tl.html#SP6" class="function-link"><span class="function-syntax">Strings::TextLiterals::lt_new</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">w1</span><span class="plain-syntax">, </span><span class="constant-syntax">RED_NODE</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">x</span><span class="plain-syntax">-></span><span class="element-syntax">left_node</span><span class="plain-syntax"> = </span><span class="identifier-syntax">z_node</span><span class="plain-syntax">; </span><span class="identifier-syntax">x</span><span class="plain-syntax">-></span><span class="element-syntax">right_node</span><span class="plain-syntax"> = </span><span class="identifier-syntax">z_node</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">went_left</span><span class="plain-syntax"> == </span><span class="identifier-syntax">TRUE</span><span class="plain-syntax">) </span><span class="identifier-syntax">p</span><span class="plain-syntax">-></span><span class="element-syntax">left_node</span><span class="plain-syntax"> = </span><span class="identifier-syntax">x</span><span class="plain-syntax">; </span><span class="reserved-syntax">else</span><span class="plain-syntax"> </span><span class="identifier-syntax">p</span><span class="plain-syntax">-></span><span class="element-syntax">right_node</span><span class="plain-syntax"> = </span><span class="identifier-syntax">x</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">literal_text</span><span class="plain-syntax"> *</span><span class="identifier-syntax">new_x</span><span class="plain-syntax"> = </span><span class="identifier-syntax">x</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="17-tl.html#SP9_2_2" class="named-paragraph-link"><span class="named-paragraph">Perform a split</span><span class="named-paragraph-number">9.2.2</span></a></span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">x</span><span class="plain-syntax"> = </span><span class="identifier-syntax">new_x</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="17-tl.html#SP9_2_1" class="named-paragraph-link"><span class="named-paragraph">Locate this as the new node</span><span class="named-paragraph-number">9.2.1</span></a></span><span class="plain-syntax">;</span>
|
|
</pre>
|
|
<ul class="endnotetexts"><li>This code is used in <a href="17-tl.html#SP9">§9</a>.</li></ul>
|
|
<p class="commentary firstcommentary"><a id="SP9_2_1" class="paragraph-anchor"></a><b>§9.2.1. </b><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Locate this as the new node</span><span class="named-paragraph-number">9.2.1</span></span><span class="comment-syntax"> =</span>
|
|
</p>
|
|
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">encode_constant_text_bibliographically</span><span class="plain-syntax">) </span><span class="identifier-syntax">x</span><span class="plain-syntax">-></span><span class="element-syntax">bibliographic_conventions</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">write</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">x</span><span class="plain-syntax">-></span><span class="element-syntax">lt_sba_iname</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">package_request</span><span class="plain-syntax"> *</span><span class="identifier-syntax">PR</span><span class="plain-syntax"> = </span><a href="27-hr.html#SP4" class="function-link"><span class="function-syntax">Hierarchy::package_in_enclosure</span></a><span class="plain-syntax">(</span><span class="constant-syntax">BLOCK_CONSTANTS_HAP</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">x</span><span class="plain-syntax">-></span><span class="element-syntax">lt_sba_iname</span><span class="plain-syntax"> = </span><a href="27-hr.html#SP4" class="function-link"><span class="function-syntax">Hierarchy::make_iname_in</span></a><span class="plain-syntax">(</span><span class="constant-syntax">BLOCK_CONSTANT_HL</span><span class="plain-syntax">, </span><span class="identifier-syntax">PR</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">VH</span><span class="plain-syntax">) </span><a href="27-em.html#SP4" class="function-link"><span class="function-syntax">Emit::holster</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">VH</span><span class="plain-syntax">, </span><span class="identifier-syntax">x</span><span class="plain-syntax">-></span><span class="element-syntax">lt_sba_iname</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">x</span><span class="plain-syntax">-></span><span class="identifier-syntax">small_block_array_needed</span><span class="plain-syntax"> = </span><span class="identifier-syntax">TRUE</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> }</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">x</span><span class="plain-syntax">;</span>
|
|
</pre>
|
|
<ul class="endnotetexts"><li>This code is used in <a href="17-tl.html#SP9_2">§9.2</a> (twice).</li></ul>
|
|
<p class="commentary firstcommentary"><a id="SP9_2_2" class="paragraph-anchor"></a><b>§9.2.2. </b><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Perform a split</span><span class="named-paragraph-number">9.2.2</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">x</span><span class="plain-syntax">-></span><span class="element-syntax">node_colour</span><span class="plain-syntax"> = </span><span class="constant-syntax">RED_NODE</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">x</span><span class="plain-syntax">-></span><span class="element-syntax">left_node</span><span class="plain-syntax">-></span><span class="element-syntax">node_colour</span><span class="plain-syntax"> = </span><span class="constant-syntax">BLACK_NODE</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">x</span><span class="plain-syntax">-></span><span class="element-syntax">right_node</span><span class="plain-syntax">-></span><span class="element-syntax">node_colour</span><span class="plain-syntax"> = </span><span class="constant-syntax">BLACK_NODE</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">p</span><span class="plain-syntax">-></span><span class="identifier-syntax">node_colour</span><span class="plain-syntax"> == </span><span class="constant-syntax">RED_NODE</span><span class="plain-syntax">) </span><span class="named-paragraph-container code-font"><a href="17-tl.html#SP9_2_2_1" class="named-paragraph-link"><span class="named-paragraph">Rotations will be needed</span><span class="named-paragraph-number">9.2.2.1</span></a></span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">root_of_literal_text</span><span class="plain-syntax">-></span><span class="element-syntax">right_node</span><span class="plain-syntax">-></span><span class="element-syntax">node_colour</span><span class="plain-syntax"> = </span><span class="constant-syntax">BLACK_NODE</span><span class="plain-syntax">;</span>
|
|
</pre>
|
|
<ul class="endnotetexts"><li>This code is used in <a href="17-tl.html#SP9_2">§9.2</a> (twice).</li></ul>
|
|
<p class="commentary firstcommentary"><a id="SP9_2_2_1" class="paragraph-anchor"></a><b>§9.2.2.1. </b><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Rotations will be needed</span><span class="named-paragraph-number">9.2.2.1</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">g</span><span class="plain-syntax">-></span><span class="element-syntax">node_colour</span><span class="plain-syntax"> = </span><span class="constant-syntax">RED_NODE</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">left_of_g</span><span class="plain-syntax"> = </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">, </span><span class="identifier-syntax">left_of_p</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><a href="17-tl.html#SP7" class="function-link"><span class="function-syntax">Strings::TextLiterals::lt_cmp</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">w1</span><span class="plain-syntax">, </span><span class="identifier-syntax">g</span><span class="plain-syntax">) < </span><span class="constant-syntax">0</span><span class="plain-syntax">) </span><span class="identifier-syntax">left_of_g</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><a href="17-tl.html#SP7" class="function-link"><span class="function-syntax">Strings::TextLiterals::lt_cmp</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">w1</span><span class="plain-syntax">, </span><span class="identifier-syntax">p</span><span class="plain-syntax">) < </span><span class="constant-syntax">0</span><span class="plain-syntax">) </span><span class="identifier-syntax">left_of_p</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">left_of_g</span><span class="plain-syntax"> != </span><span class="identifier-syntax">left_of_p</span><span class="plain-syntax">) </span><span class="identifier-syntax">p</span><span class="plain-syntax"> = </span><a href="17-tl.html#SP10" class="function-link"><span class="function-syntax">Strings::TextLiterals::rotate</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">w1</span><span class="plain-syntax">, </span><span class="identifier-syntax">g</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">x</span><span class="plain-syntax"> = </span><a href="17-tl.html#SP10" class="function-link"><span class="function-syntax">Strings::TextLiterals::rotate</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">w1</span><span class="plain-syntax">, </span><span class="identifier-syntax">gg</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">x</span><span class="plain-syntax">-></span><span class="element-syntax">node_colour</span><span class="plain-syntax"> = </span><span class="constant-syntax">BLACK_NODE</span><span class="plain-syntax">;</span>
|
|
</pre>
|
|
<ul class="endnotetexts"><li>This code is used in <a href="17-tl.html#SP9_2_2">§9.2.2</a>.</li></ul>
|
|
<p class="commentary firstcommentary"><a id="SP10" class="paragraph-anchor"></a><b>§10. </b>Rotation is a local tree rearrangement which tends to move it towards
|
|
rather than away from "balance", that is, towards a configuration where
|
|
the depth of tree is roughly even.
|
|
</p>
|
|
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="reserved-syntax">literal_text</span><span class="plain-syntax"> *</span><span class="function-syntax">Strings::TextLiterals::rotate</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">Strings::TextLiterals::rotate</span></span>:<br/><a href="17-tl.html#SP9_2_2_1">§9.2.2.1</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">w1</span><span class="plain-syntax">, </span><span class="reserved-syntax">literal_text</span><span class="plain-syntax"> *</span><span class="identifier-syntax">y</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">literal_text</span><span class="plain-syntax"> *</span><span class="identifier-syntax">c</span><span class="plain-syntax">, *</span><span class="identifier-syntax">gc</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><a href="17-tl.html#SP7" class="function-link"><span class="function-syntax">Strings::TextLiterals::lt_cmp</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">w1</span><span class="plain-syntax">, </span><span class="identifier-syntax">y</span><span class="plain-syntax">) < </span><span class="constant-syntax">0</span><span class="plain-syntax">) </span><span class="identifier-syntax">c</span><span class="plain-syntax"> = </span><span class="identifier-syntax">y</span><span class="plain-syntax">-></span><span class="element-syntax">left_node</span><span class="plain-syntax">; </span><span class="reserved-syntax">else</span><span class="plain-syntax"> </span><span class="identifier-syntax">c</span><span class="plain-syntax"> = </span><span class="identifier-syntax">y</span><span class="plain-syntax">-></span><span class="element-syntax">right_node</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><a href="17-tl.html#SP7" class="function-link"><span class="function-syntax">Strings::TextLiterals::lt_cmp</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">w1</span><span class="plain-syntax">, </span><span class="identifier-syntax">c</span><span class="plain-syntax">) < </span><span class="constant-syntax">0</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">gc</span><span class="plain-syntax"> = </span><span class="identifier-syntax">c</span><span class="plain-syntax">-></span><span class="element-syntax">left_node</span><span class="plain-syntax">; </span><span class="identifier-syntax">c</span><span class="plain-syntax">-></span><span class="element-syntax">left_node</span><span class="plain-syntax"> = </span><span class="identifier-syntax">gc</span><span class="plain-syntax">-></span><span class="element-syntax">right_node</span><span class="plain-syntax">; </span><span class="identifier-syntax">gc</span><span class="plain-syntax">-></span><span class="element-syntax">right_node</span><span class="plain-syntax"> = </span><span class="identifier-syntax">c</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> } </span><span class="reserved-syntax">else</span><span class="plain-syntax"> {</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">gc</span><span class="plain-syntax"> = </span><span class="identifier-syntax">c</span><span class="plain-syntax">-></span><span class="element-syntax">right_node</span><span class="plain-syntax">; </span><span class="identifier-syntax">c</span><span class="plain-syntax">-></span><span class="element-syntax">right_node</span><span class="plain-syntax"> = </span><span class="identifier-syntax">gc</span><span class="plain-syntax">-></span><span class="element-syntax">left_node</span><span class="plain-syntax">; </span><span class="identifier-syntax">gc</span><span class="plain-syntax">-></span><span class="element-syntax">left_node</span><span class="plain-syntax"> = </span><span class="identifier-syntax">c</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> }</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><a href="17-tl.html#SP7" class="function-link"><span class="function-syntax">Strings::TextLiterals::lt_cmp</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">w1</span><span class="plain-syntax">, </span><span class="identifier-syntax">y</span><span class="plain-syntax">) < </span><span class="constant-syntax">0</span><span class="plain-syntax">) </span><span class="identifier-syntax">y</span><span class="plain-syntax">-></span><span class="element-syntax">left_node</span><span class="plain-syntax"> = </span><span class="identifier-syntax">gc</span><span class="plain-syntax">; </span><span class="reserved-syntax">else</span><span class="plain-syntax"> </span><span class="identifier-syntax">y</span><span class="plain-syntax">-></span><span class="element-syntax">right_node</span><span class="plain-syntax"> = </span><span class="identifier-syntax">gc</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">gc</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax">}</span>
|
|
</pre>
|
|
<p class="commentary firstcommentary"><a id="SP11" class="paragraph-anchor"></a><b>§11. </b>It's a little strange to be writing, in 2012, code to handle an idiosyncratic
|
|
one-off form of text called a "quotation", just to match an idiosyncratic
|
|
feature of Inform 1 from 1993 which was in turn matching an idiosyncratic
|
|
feature of version 4 of the Z-machine from 1985 which, in turn, existed only
|
|
to serve the needs of an unusual single work of IF called "Trinity".
|
|
But here we are. Boxed quotations are handled much like other literal
|
|
texts in that they enter the red-black tree, but they are marked out as
|
|
different for compilation purposes.
|
|
</p>
|
|
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">extent_of_runtime_quotations_array</span><span class="plain-syntax"> = </span><span class="constant-syntax">1</span><span class="plain-syntax">; </span><span class="comment-syntax"> start at 1 to avoid 0 length</span>
|
|
|
|
<span class="reserved-syntax">void</span><span class="plain-syntax"> </span><span class="function-syntax">Strings::TextLiterals::compile_quotation</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">Strings::TextLiterals::compile_quotation</span></span>:<br/>Responses - <a href="17-rs.html#SP11">§11</a></span></button><span class="plain-syntax">(</span><span class="identifier-syntax">value_holster</span><span class="plain-syntax"> *</span><span class="identifier-syntax">VH</span><span class="plain-syntax">, </span><span class="identifier-syntax">wording</span><span class="plain-syntax"> </span><span class="identifier-syntax">W</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">literal_text</span><span class="plain-syntax"> *</span><span class="identifier-syntax">lt</span><span class="plain-syntax"> = </span><a href="17-tl.html#SP9" class="function-link"><span class="function-syntax">Strings::TextLiterals::compile_literal</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">VH</span><span class="plain-syntax">, </span><span class="identifier-syntax">TRUE</span><span class="plain-syntax">, </span><span class="identifier-syntax">W</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">lt</span><span class="plain-syntax">) </span><span class="identifier-syntax">lt</span><span class="plain-syntax">-></span><span class="element-syntax">as_boxed_quotation</span><span class="plain-syntax"> = </span><span class="identifier-syntax">TRUE</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">else</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">StandardProblems::sentence_problem</span><span class="plain-syntax">(</span><a href="1-wtc.html#SP6" class="function-link"><span class="function-syntax">Task::syntax_tree</span></a><span class="plain-syntax">(), </span><span class="identifier-syntax">_p_</span><span class="plain-syntax">(</span><span class="identifier-syntax">PM_EmptyQuotationBox</span><span class="plain-syntax">),</span>
|
|
<span class="plain-syntax"> </span><span class="string-syntax">"a boxed quotation can't be empty"</span><span class="plain-syntax">,</span>
|
|
<span class="plain-syntax"> </span><span class="string-syntax">"though I suppose you could make it consist of just a few spaces "</span>
|
|
<span class="plain-syntax"> </span><span class="string-syntax">"to get a similar effect if you really needed to."</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">extent_of_runtime_quotations_array</span><span class="plain-syntax">++;</span>
|
|
<span class="plain-syntax">}</span>
|
|
|
|
<span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="function-syntax">Strings::TextLiterals::CCOUNT_QUOTATIONS</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">Strings::TextLiterals::CCOUNT_QUOTATIONS</span></span>:<br/>Runtime Support for Kinds - <a href="13-rsfk.html#SP26">§26</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">void</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">extent_of_runtime_quotations_array</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax">}</span>
|
|
</pre>
|
|
<p class="commentary firstcommentary"><a id="SP12" class="paragraph-anchor"></a><b>§12. </b>A version from fixed text:
|
|
</p>
|
|
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="reserved-syntax">void</span><span class="plain-syntax"> </span><span class="function-syntax">Strings::TextLiterals::compile_literal_from_text</span><span class="plain-syntax">(</span><span class="identifier-syntax">inter_name</span><span class="plain-syntax"> *</span><span class="identifier-syntax">context</span><span class="plain-syntax">, </span><span class="identifier-syntax">inter_ti</span><span class="plain-syntax"> *</span><span class="identifier-syntax">v1</span><span class="plain-syntax">, </span><span class="identifier-syntax">inter_ti</span><span class="plain-syntax"> *</span><span class="identifier-syntax">v2</span><span class="plain-syntax">, </span><span class="identifier-syntax">wchar_t</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">literal_text</span><span class="plain-syntax"> *</span><span class="identifier-syntax">lt</span><span class="plain-syntax"> = </span><a href="17-tl.html#SP9" class="function-link"><span class="function-syntax">Strings::TextLiterals::compile_literal</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">NULL</span><span class="plain-syntax">, </span><span class="identifier-syntax">TRUE</span><span class="plain-syntax">, </span><span class="identifier-syntax">Feeds::feed_C_string</span><span class="plain-syntax">(</span><span class="identifier-syntax">p</span><span class="plain-syntax">));</span>
|
|
<span class="plain-syntax"> </span><a href="27-em.html#SP4" class="function-link"><span class="function-syntax">Emit::to_ival_in_context</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">context</span><span class="plain-syntax">, </span><span class="identifier-syntax">v1</span><span class="plain-syntax">, </span><span class="identifier-syntax">v2</span><span class="plain-syntax">, </span><span class="identifier-syntax">lt</span><span class="plain-syntax">-></span><span class="element-syntax">lt_sba_iname</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax">}</span>
|
|
</pre>
|
|
<p class="commentary firstcommentary"><a id="SP13" class="paragraph-anchor"></a><b>§13. </b>The above gradually piled up the need for <span class="extract"><span class="extract-syntax">TX_L_*</span></span> constants/routines,
|
|
as compilation went on: now comes the reckoning, when we have to declare
|
|
all of these. We traverse the tree from left to right, because that produces
|
|
the texts in alphabetical order; the Z-node, of course, is a terminal and
|
|
shouldn't be visited, and the root node has no text (and so has word
|
|
number <span class="extract"><span class="extract-syntax">-1</span></span>).
|
|
</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">Strings::TextLiterals::compile</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">Strings::TextLiterals::compile</span></span>:<br/>How To Compile - <a href="1-htc.html#SP2_8">§2.8</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">void</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">root_of_literal_text</span><span class="plain-syntax">)</span>
|
|
<span class="plain-syntax"> </span><a href="17-tl.html#SP13" class="function-link"><span class="function-syntax">Strings::TextLiterals::traverse_lts</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">root_of_literal_text</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">Strings::TextLiterals::traverse_lts</span><span class="plain-syntax">(</span><span class="reserved-syntax">literal_text</span><span class="plain-syntax"> *</span><span class="identifier-syntax">lt</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">lt</span><span class="plain-syntax">-></span><span class="element-syntax">left_node</span><span class="plain-syntax"> != </span><span class="identifier-syntax">z_node</span><span class="plain-syntax">) </span><a href="17-tl.html#SP13" class="function-link"><span class="function-syntax">Strings::TextLiterals::traverse_lts</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">lt</span><span class="plain-syntax">-></span><span class="element-syntax">left_node</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">lt</span><span class="plain-syntax">-></span><span class="element-syntax">lt_position</span><span class="plain-syntax"> >= </span><span class="constant-syntax">0</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">lt</span><span class="plain-syntax">-></span><span class="element-syntax">as_boxed_quotation</span><span class="plain-syntax"> == </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">)</span>
|
|
<span class="plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="17-tl.html#SP13_1" class="named-paragraph-link"><span class="named-paragraph">Compile a standard literal text</span><span class="named-paragraph-number">13.1</span></a></span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">else</span>
|
|
<span class="plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="17-tl.html#SP13_2" class="named-paragraph-link"><span class="named-paragraph">Compile a boxed-quotation literal text</span><span class="named-paragraph-number">13.2</span></a></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">lt</span><span class="plain-syntax">-></span><span class="element-syntax">right_node</span><span class="plain-syntax"> != </span><span class="identifier-syntax">z_node</span><span class="plain-syntax">) </span><a href="17-tl.html#SP13" class="function-link"><span class="function-syntax">Strings::TextLiterals::traverse_lts</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">lt</span><span class="plain-syntax">-></span><span class="element-syntax">right_node</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax">}</span>
|
|
</pre>
|
|
<p class="commentary firstcommentary"><a id="SP13_1" class="paragraph-anchor"></a><b>§13.1. </b><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Compile a standard literal text</span><span class="named-paragraph-number">13.1</span></span><span class="comment-syntax"> =</span>
|
|
</p>
|
|
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><a href="1-wtc.html#SP17" class="function-link"><span class="function-syntax">Task::wraps_existing_storyfile</span></a><span class="plain-syntax">()) { </span><span class="comment-syntax"> to prevent trouble when no story file is really being made</span>
|
|
<span class="plain-syntax"> </span><a href="27-em.html#SP3" class="function-link"><span class="function-syntax">Emit::named_string_constant</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">lt</span><span class="plain-syntax">-></span><span class="element-syntax">lt_iname</span><span class="plain-syntax">, </span><span class="identifier-syntax">I</span><span class="string-syntax">"--"</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> } </span><span class="reserved-syntax">else</span><span class="plain-syntax"> {</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">TEMPORARY_TEXT</span><span class="plain-syntax">(</span><span class="identifier-syntax">TLT</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">options</span><span class="plain-syntax"> = </span><span class="constant-syntax">CT_DEQUOTE</span><span class="plain-syntax"> + </span><span class="constant-syntax">CT_EXPAND_APOSTROPHES</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">lt</span><span class="plain-syntax">-></span><span class="element-syntax">unescaped</span><span class="plain-syntax">) </span><span class="identifier-syntax">options</span><span class="plain-syntax"> = </span><span class="constant-syntax">CT_DEQUOTE</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">lt</span><span class="plain-syntax">-></span><span class="element-syntax">bibliographic_conventions</span><span class="plain-syntax">)</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">options</span><span class="plain-syntax"> += </span><span class="constant-syntax">CT_RECOGNISE_APOSTROPHE_SUBSTITUTION</span><span class="plain-syntax"> + </span><span class="constant-syntax">CT_RECOGNISE_UNICODE_SUBSTITUTION</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">lt</span><span class="plain-syntax">-></span><span class="element-syntax">unexpanded</span><span class="plain-syntax">) </span><span class="identifier-syntax">options</span><span class="plain-syntax"> = </span><span class="constant-syntax">CT_DEQUOTE</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><a href="26-ct.html#SP1" class="function-link"><span class="function-syntax">CompiledText::from_wide_string</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">TLT</span><span class="plain-syntax">, </span><span class="identifier-syntax">Lexer::word_text</span><span class="plain-syntax">(</span><span class="identifier-syntax">lt</span><span class="plain-syntax">-></span><span class="element-syntax">lt_position</span><span class="plain-syntax">), </span><span class="identifier-syntax">options</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><a href="27-em.html#SP3" class="function-link"><span class="function-syntax">Emit::named_string_constant</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">lt</span><span class="plain-syntax">-></span><span class="element-syntax">lt_iname</span><span class="plain-syntax">, </span><span class="identifier-syntax">TLT</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">DISCARD_TEXT</span><span class="plain-syntax">(</span><span class="identifier-syntax">TLT</span><span class="plain-syntax">)</span>
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<span class="plain-syntax"> }</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">lt</span><span class="plain-syntax">-></span><span class="element-syntax">small_block_array_needed</span><span class="plain-syntax">) {</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">packaging_state</span><span class="plain-syntax"> </span><span class="identifier-syntax">save</span><span class="plain-syntax"> = </span><a href="27-em.html#SP3" class="function-link"><span class="function-syntax">Emit::named_array_begin</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">lt</span><span class="plain-syntax">-></span><span class="element-syntax">lt_sba_iname</span><span class="plain-syntax">, </span><span class="identifier-syntax">K_value</span><span class="plain-syntax">);</span>
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|
<span class="plain-syntax"> </span><a href="27-em.html#SP3" class="function-link"><span class="function-syntax">Emit::array_iname_entry</span></a><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">CONSTANT_PACKED_TEXT_STORAGE_HL</span><span class="plain-syntax">));</span>
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<span class="plain-syntax"> </span><a href="27-em.html#SP3" class="function-link"><span class="function-syntax">Emit::array_iname_entry</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">lt</span><span class="plain-syntax">-></span><span class="element-syntax">lt_iname</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><a href="27-em.html#SP3" class="function-link"><span class="function-syntax">Emit::array_end</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">save</span><span class="plain-syntax">);</span>
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|
<span class="plain-syntax"> }</span>
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</pre>
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<ul class="endnotetexts"><li>This code is used in <a href="17-tl.html#SP13">§13</a>.</li></ul>
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<p class="commentary firstcommentary"><a id="SP13_2" class="paragraph-anchor"></a><b>§13.2. </b><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Compile a boxed-quotation literal text</span><span class="named-paragraph-number">13.2</span></span><span class="comment-syntax"> =</span>
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</p>
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<pre class="displayed-code all-displayed-code code-font">
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<span class="plain-syntax"> </span><span class="identifier-syntax">package_request</span><span class="plain-syntax"> *</span><span class="identifier-syntax">PR</span><span class="plain-syntax"> = </span><a href="27-hr.html#SP4" class="function-link"><span class="function-syntax">Hierarchy::package_in_enclosure</span></a><span class="plain-syntax">(</span><span class="constant-syntax">BOX_QUOTATIONS_HAP</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">inter_name</span><span class="plain-syntax"> *</span><span class="identifier-syntax">iname</span><span class="plain-syntax"> = </span><a href="27-hr.html#SP4" class="function-link"><span class="function-syntax">Hierarchy::make_iname_in</span></a><span class="plain-syntax">(</span><span class="constant-syntax">BOX_QUOTATION_FN_HL</span><span class="plain-syntax">, </span><span class="identifier-syntax">PR</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">lt</span><span class="plain-syntax">-></span><span class="element-syntax">lt_sba_iname</span><span class="plain-syntax"> == </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">) {</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">package_request</span><span class="plain-syntax"> *</span><span class="identifier-syntax">PR</span><span class="plain-syntax"> = </span><a href="27-hr.html#SP4" class="function-link"><span class="function-syntax">Hierarchy::package_in_enclosure</span></a><span class="plain-syntax">(</span><span class="constant-syntax">BLOCK_CONSTANTS_HAP</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">lt</span><span class="plain-syntax">-></span><span class="element-syntax">lt_sba_iname</span><span class="plain-syntax"> = </span><a href="27-hr.html#SP4" class="function-link"><span class="function-syntax">Hierarchy::make_iname_in</span></a><span class="plain-syntax">(</span><span class="constant-syntax">BLOCK_CONSTANT_HL</span><span class="plain-syntax">, </span><span class="identifier-syntax">PR</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> }</span>
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<span class="plain-syntax"> </span><a href="27-em.html#SP3" class="function-link"><span class="function-syntax">Emit::named_iname_constant</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">lt</span><span class="plain-syntax">-></span><span class="element-syntax">lt_sba_iname</span><span class="plain-syntax">, </span><span class="identifier-syntax">K_value</span><span class="plain-syntax">, </span><span class="identifier-syntax">iname</span><span class="plain-syntax">);</span>
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|
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<span class="plain-syntax"> </span><span class="identifier-syntax">packaging_state</span><span class="plain-syntax"> </span><span class="identifier-syntax">save</span><span class="plain-syntax"> = </span><a href="26-rt.html#SP1" class="function-link"><span class="function-syntax">Routines::begin</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">iname</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">Produce::inv_primitive</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">BOX_BIP</span><span class="plain-syntax">);</span>
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|
<span class="plain-syntax"> </span><span class="identifier-syntax">Produce::down</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="identifier-syntax">TEMPORARY_TEXT</span><span class="plain-syntax">(</span><span class="identifier-syntax">T</span><span class="plain-syntax">)</span>
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|
<span class="plain-syntax"> </span><a href="26-ct.html#SP1" class="function-link"><span class="function-syntax">CompiledText::bq_from_wide_string</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">T</span><span class="plain-syntax">, </span><span class="identifier-syntax">Lexer::word_text</span><span class="plain-syntax">(</span><span class="identifier-syntax">lt</span><span class="plain-syntax">-></span><span class="element-syntax">lt_position</span><span class="plain-syntax">));</span>
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|
<span class="plain-syntax"> </span><span class="identifier-syntax">Produce::val_text</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">T</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">DISCARD_TEXT</span><span class="plain-syntax">(</span><span class="identifier-syntax">T</span><span class="plain-syntax">)</span>
|
|
<span class="plain-syntax"> </span><span class="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>
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|
<span class="plain-syntax"> </span><a href="26-rt.html#SP4" class="function-link"><span class="function-syntax">Routines::end</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">save</span><span class="plain-syntax">);</span>
|
|
</pre>
|
|
<ul class="endnotetexts"><li>This code is used in <a href="17-tl.html#SP13">§13</a>.</li></ul>
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<p class="commentary firstcommentary"><a id="SP14" class="paragraph-anchor"></a><b>§14. </b></p>
|
|
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|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="reserved-syntax">void</span><span class="plain-syntax"> </span><span class="function-syntax">Strings::TextLiterals::compile_small_block</span><span class="plain-syntax">(</span><span class="identifier-syntax">OUTPUT_STREAM</span><span class="plain-syntax">, </span><span class="reserved-syntax">literal_text</span><span class="plain-syntax"> *</span><span class="identifier-syntax">lt</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax">}</span>
|
|
</pre>
|
|
<p class="commentary firstcommentary"><a id="SP15" class="paragraph-anchor"></a><b>§15. </b></p>
|
|
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="reserved-syntax">literal_text</span><span class="plain-syntax"> *</span><span class="function-syntax">Strings::TextLiterals::compile_literal_sb</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">Strings::TextLiterals::compile_literal_sb</span></span>:<br/>Responses - <a href="17-rs.html#SP11_1_2">§11.1.2</a></span></button><span class="plain-syntax">(</span><span class="identifier-syntax">value_holster</span><span class="plain-syntax"> *</span><span class="identifier-syntax">VH</span><span class="plain-syntax">, </span><span class="identifier-syntax">wording</span><span class="plain-syntax"> </span><span class="identifier-syntax">W</span><span class="plain-syntax">) {</span>
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|
<span class="plain-syntax"> </span><span class="reserved-syntax">literal_text</span><span class="plain-syntax"> *</span><span class="identifier-syntax">lt</span><span class="plain-syntax"> = </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">;</span>
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|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">TEST_COMPILATION_MODE</span><span class="plain-syntax">(</span><span class="constant-syntax">CONSTANT_CMODE</span><span class="plain-syntax">)) {</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">package_request</span><span class="plain-syntax"> *</span><span class="identifier-syntax">PR</span><span class="plain-syntax"> = </span><a href="27-hr.html#SP4" class="function-link"><span class="function-syntax">Hierarchy::package_in_enclosure</span></a><span class="plain-syntax">(</span><span class="constant-syntax">BLOCK_CONSTANTS_HAP</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">N</span><span class="plain-syntax"> = </span><a href="27-hr.html#SP4" class="function-link"><span class="function-syntax">Hierarchy::make_iname_in</span></a><span class="plain-syntax">(</span><span class="constant-syntax">BLOCK_CONSTANT_HL</span><span class="plain-syntax">, </span><span class="identifier-syntax">PR</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">packaging_state</span><span class="plain-syntax"> </span><span class="identifier-syntax">save</span><span class="plain-syntax"> = </span><a href="27-em.html#SP3" class="function-link"><span class="function-syntax">Emit::named_late_array_begin</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">N</span><span class="plain-syntax">, </span><span class="identifier-syntax">K_value</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">lt</span><span class="plain-syntax"> = </span><a href="17-tl.html#SP9" class="function-link"><span class="function-syntax">Strings::TextLiterals::compile_literal</span></a><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="identifier-syntax">W</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><a href="27-em.html#SP3" class="function-link"><span class="function-syntax">Emit::array_iname_entry</span></a><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">PACKED_TEXT_STORAGE_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">lt</span><span class="plain-syntax"> == </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">) </span><a href="27-em.html#SP3" class="function-link"><span class="function-syntax">Emit::array_iname_entry</span></a><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">EMPTY_TEXT_PACKED_HL</span><span class="plain-syntax">));</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">else</span><span class="plain-syntax"> </span><a href="27-em.html#SP3" class="function-link"><span class="function-syntax">Emit::array_iname_entry</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">lt</span><span class="plain-syntax">-></span><span class="element-syntax">lt_iname</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><a href="27-em.html#SP3" class="function-link"><span class="function-syntax">Emit::array_end</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">save</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">) </span><a href="27-em.html#SP4" class="function-link"><span class="function-syntax">Emit::holster</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">VH</span><span class="plain-syntax">, </span><span class="identifier-syntax">N</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">lt</span><span class="plain-syntax"> = </span><a href="17-tl.html#SP9" class="function-link"><span class="function-syntax">Strings::TextLiterals::compile_literal</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">VH</span><span class="plain-syntax">, </span><span class="identifier-syntax">TRUE</span><span class="plain-syntax">, </span><span class="identifier-syntax">W</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> }</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">lt</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax">}</span>
|
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</pre>
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