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<!--Weave of 'Phrase Type Data' 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#22">Chapter 22: Phrases</a></li><li><b>Phrase Type Data</b></li></ul></div>
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<p class="purpose">To create, manage, compare the logical specificity of, and assist excerpt parsing concerning, the type of a To phrase. This involves whether it is void, determines a condition or returns a value (and if so, what kind of value); and also what parameters it takes (possibly values, possible other types used by inline definitions) and their types in turn.</p>
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<ul class="toc"><li><a href="22-ptd.html#SP9">§9. Creation</a></li><li><a href="22-ptd.html#SP12">§12. The kind of a phrase</a></li><li><a href="22-ptd.html#SP15">§15. The tokens</a></li><li><a href="22-ptd.html#SP18">§18. Deprecation</a></li><li><a href="22-ptd.html#SP19">§19. Adding token names to a stack frame</a></li><li><a href="22-ptd.html#SP20">§20. Comparison of PHTDs</a></li><li><a href="22-ptd.html#SP21">§21. Say phrases</a></li><li><a href="22-ptd.html#SP22">§22. Inline phrases</a></li><li><a href="22-ptd.html#SP27">§27. Return value polymorphism</a></li><li><a href="22-ptd.html#SP28">§28. Tweaking phrase ordering</a></li></ul><hr class="tocbar">
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<p class="commentary firstcommentary"><a id="SP1" class="paragraph-anchor"></a><b>§1. </b>Inform is an unusual language in that it does not distinguish between
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functions, control structures and keywords: they are all phrases. This
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means that the functional description of what a phrase does has to be more
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than just a kind like <span class="extract"><span class="extract-syntax">phrase number -> text</span></span>. For example, "if ..., ..."
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is a phrase in Inform, but it has no kind as such: the first "..." is a
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condition, the second "..." a phrase invocation, and neither one of those
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is a value, so neither one has a kind. It follows that we are going to
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need a rather larger data structure to describe what a phrase does than
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simply a kind, and that's what we create in this section.
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</p>
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<p class="commentary">Here's a simple example from the Standard Rules:
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</p>
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<blockquote>
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<p>To sort (T - table name) in (TC - table column) order: ...</p>
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</blockquote>
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<p class="commentary">The "word sequence" for this consists of five "words": sort, 0, in, 1,
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order. That is, we store five integers: the word numbers for "sort", "in"
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and "order", and then very low integers represent tokens rather than fixed
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wording. (It follows from this that a phrase can't be defined in the first
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ten words of the source text, but that's okay, because those words can
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never be from the author's own source text anyway — they contain the
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instruction to load the Standard Rules.)
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</p>
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<p class="commentary">The tokens are the variably-worded parts written with brackets. The "token
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sequence" consists of two tokens, "T - table name" and "TC - table column".
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</p>
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<pre class="definitions code-font"><span class="definition-keyword">define</span> <span class="constant-syntax">MAX_TOKENS_PER_PHRASE</span><span class="plain-syntax"> </span><span class="constant-syntax">10</span>
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<span class="definition-keyword">define</span> <span class="constant-syntax">MAX_WORDS_PER_PHRASE</span><span class="plain-syntax"> </span><span class="constant-syntax">32</span><span class="plain-syntax"> </span><span class="comment-syntax"> the most the excerpt parser can hold anyway</span>
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</pre>
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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">ph_type_data</span><span class="plain-syntax"> {</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">struct</span><span class="plain-syntax"> </span><span class="identifier-syntax">wording</span><span class="plain-syntax"> </span><span class="identifier-syntax">registration_text</span><span class="plain-syntax">; </span><span class="comment-syntax"> words used to register the excerpt meaning</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">word_sequence</span><span class="plain-syntax">[</span><span class="constant-syntax">MAX_WORDS_PER_PHRASE</span><span class="plain-syntax">]; </span><span class="comment-syntax"> the "word sequence": see above</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">no_words</span><span class="plain-syntax">; </span><span class="comment-syntax"> length of the word sequence</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">phrase_token</span><span class="plain-syntax"> </span><span class="identifier-syntax">token_sequence</span><span class="plain-syntax">[</span><span class="constant-syntax">MAX_TOKENS_PER_PHRASE</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">no_tokens</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">manner_of_return</span><span class="plain-syntax">; </span><span class="comment-syntax"> one of the </span><span class="extract"><span class="extract-syntax">*_MOR</span></span><span class="comment-syntax"> values</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">kind</span><span class="plain-syntax"> *</span><span class="identifier-syntax">return_kind</span><span class="plain-syntax">; </span><span class="comment-syntax"> </span><span class="extract"><span class="extract-syntax">NULL</span></span><span class="comment-syntax"> except in the </span><span class="extract"><span class="extract-syntax">DECIDES_VALUE_MOR</span></span><span class="comment-syntax"> case</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">say_details</span><span class="plain-syntax"> </span><span class="identifier-syntax">as_say</span><span class="plain-syntax">; </span><span class="comment-syntax"> used only for "say" phrases, that is, text substitutions</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">inline_details</span><span class="plain-syntax"> </span><span class="identifier-syntax">as_inline</span><span class="plain-syntax">; </span><span class="comment-syntax"> side effects for phrases like C keywords</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">now_deprecated</span><span class="plain-syntax">; </span><span class="comment-syntax"> is this a phrase likely to be withdrawn in future?</span>
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<span class="plain-syntax">} </span><span class="reserved-syntax">ph_type_data</span><span class="plain-syntax">;</span>
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</pre>
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<ul class="endnotetexts"><li>The structure ph_type_data is accessed in 14/ds2, 22/dptd, 25/pi, 25/ci, 25/cii, 25/cp and here.</li></ul>
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<p class="commentary firstcommentary"><a id="SP2" class="paragraph-anchor"></a><b>§2. </b>The two tokens of our example phrase, then, are each stored in one of these:
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</p>
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<pre class="definitions code-font"><span class="definition-keyword">define</span> <span class="constant-syntax">STANDARD_PT_CONSTRUCT</span><span class="plain-syntax"> </span><span class="constant-syntax">1</span><span class="plain-syntax"> </span><span class="comment-syntax"> e.g., </span><span class="extract"><span class="extract-syntax">12</span></span><span class="comment-syntax">, </span><span class="extract"><span class="extract-syntax">number</span></span><span class="comment-syntax">, </span><span class="extract"><span class="extract-syntax">open door</span></span>
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<span class="definition-keyword">define</span> <span class="constant-syntax">NEW_LOCAL_PT_CONSTRUCT</span><span class="plain-syntax"> </span><span class="constant-syntax">2</span><span class="plain-syntax"> </span><span class="comment-syntax"> e.g., </span><span class="extract"><span class="extract-syntax">nonexisting number variable</span></span>
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<span class="definition-keyword">define</span> <span class="constant-syntax">EXISTING_LOCAL_PT_CONSTRUCT</span><span class="plain-syntax"> </span><span class="constant-syntax">3</span><span class="plain-syntax"> </span><span class="comment-syntax"> e.g., </span><span class="extract"><span class="extract-syntax">existing number variable</span></span>
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<span class="definition-keyword">define</span> <span class="constant-syntax">CONDITION_PT_CONSTRUCT</span><span class="plain-syntax"> </span><span class="constant-syntax">4</span><span class="plain-syntax"> </span><span class="comment-syntax"> e.g., </span><span class="extract"><span class="extract-syntax">a condition</span></span>
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<span class="definition-keyword">define</span> <span class="constant-syntax">STORAGE_PT_CONSTRUCT</span><span class="plain-syntax"> </span><span class="constant-syntax">5</span><span class="plain-syntax"> </span><span class="comment-syntax"> e.g., </span><span class="extract"><span class="extract-syntax">storage</span></span>
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<span class="definition-keyword">define</span> <span class="constant-syntax">TABLE_REFERENCE_PT_CONSTRUCT</span><span class="plain-syntax"> </span><span class="constant-syntax">6</span><span class="plain-syntax"> </span><span class="comment-syntax"> e.g., </span><span class="extract"><span class="extract-syntax">table-reference</span></span>
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<span class="definition-keyword">define</span> <span class="constant-syntax">KIND_NAME_PT_CONSTRUCT</span><span class="plain-syntax"> </span><span class="constant-syntax">7</span><span class="plain-syntax"> </span><span class="comment-syntax"> e.g., </span><span class="extract"><span class="extract-syntax">name of kind</span></span>
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<span class="definition-keyword">define</span> <span class="constant-syntax">VOID_PT_CONSTRUCT</span><span class="plain-syntax"> </span><span class="constant-syntax">8</span><span class="plain-syntax"> </span><span class="comment-syntax"> e.g., or in fact only, </span><span class="extract"><span class="extract-syntax">phrase</span></span>
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</pre>
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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">phrase_token</span><span class="plain-syntax"> {</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">struct</span><span class="plain-syntax"> </span><span class="identifier-syntax">wording</span><span class="plain-syntax"> </span><span class="identifier-syntax">token_name</span><span class="plain-syntax">; </span><span class="comment-syntax"> name</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">struct</span><span class="plain-syntax"> </span><span class="identifier-syntax">parse_node</span><span class="plain-syntax"> *</span><span class="identifier-syntax">to_match</span><span class="plain-syntax">; </span><span class="comment-syntax"> what we expect to find here</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">kind</span><span class="plain-syntax"> *</span><span class="identifier-syntax">token_kind</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">construct</span><span class="plain-syntax">; </span><span class="comment-syntax"> one of the above values</span>
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<span class="plain-syntax">} </span><span class="reserved-syntax">phrase_token</span><span class="plain-syntax">;</span>
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</pre>
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<ul class="endnotetexts"><li>The structure phrase_token is accessed in 6/lp, 12/dtd, 13/kak, 13/rsfk, 14/lv, 14/ds2, 15/cp, 22/dptd, 25/pi, 25/ci, 25/cii, 26/pc and here.</li></ul>
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<p class="commentary firstcommentary"><a id="SP3" class="paragraph-anchor"></a><b>§3. </b>At first sight that structure looks a bit redundant. Why do we store both a
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specification, telling the matcher what to allow, and also a kind?
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</p>
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<p class="commentary">The answer is that the kinds hierarchy is not rich enough. "Door" is a kind,
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but "open door" is not, and nor is "even number", or
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</p>
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<blockquote>
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<p>a woman in a lighted room</p>
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</blockquote>
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<p class="commentary">It seems at first appealing to decide that "open door" (say) ought to be
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a kind, but no variable with this kind would be safe: merely by opening a
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door somewhere during play, the player could make its current value no
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longer fit its kind.
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</p>
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<p class="commentary">In order to preserve type safety, Inform forces its storage objects
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(variables, table entries, and so on) to have fixed kinds decided at compile
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time. We are allowed to create a "number that varies", but not an "even
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number that varies", because the former is a kind and the latter is not.
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This is rather like C, where variables might be declared like so:
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</p>
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<pre class="displayed-code all-displayed-code code-font">
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<span class="plain-syntax"> </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">width</span><span class="plain-syntax">, </span><span class="identifier-syntax">height</span><span class="plain-syntax">; </span><span class="reserved-syntax">char</span><span class="plain-syntax"> *</span><span class="identifier-syntax">name</span><span class="plain-syntax">;</span>
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</pre>
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<p class="commentary">In C, the range of types which can be stored is the same as the range of
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types which can be function arguments, so for instance:
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</p>
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<pre class="displayed-code all-displayed-code code-font">
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<span class="plain-syntax"> </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">area</span><span class="plain-syntax">(</span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">width</span><span class="plain-syntax">, </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">height</span><span class="plain-syntax">) { </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">width</span><span class="plain-syntax">*</span><span class="identifier-syntax">height</span><span class="plain-syntax">; }</span>
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</pre>
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<p class="commentary">But whereas Inform's variables are much like C's, Inform's phrase definitions
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are not like C's functions, and they can have much more general arguments:
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</p>
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<blockquote>
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<p>To jemmy open (the barrier - a closed door): ...</p>
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</blockquote>
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<blockquote>
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<p>To repeat (P - a phrase) indefinitely: ...</p>
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</blockquote>
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<p class="commentary">We therefore need a much more general way to describe what text can appear
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in phrase arguments than a kind can provide, and this is what leads us to
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the idea of a "specification". In fact, though, even these examples are
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not general enough. Natural language is very slippery about concepts which,
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in most computing theories, are formally separate. Consider for instance
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the overloaded definition of a phrase like this one:
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</p>
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<blockquote>
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<p>To appreciate (composer - a person): ...</p>
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</blockquote>
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<blockquote>
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<p>To appreciate (composer - Alessandro Striggio): ...</p>
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</blockquote>
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<p class="commentary">The early design of Inform did not permit this, since it clearly confused
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values and types, but this lack was in fact reported as a bug — always a
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sign that users considered it a natural thing to do. Specifications therefore
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needed to be able to represent not only vague descriptions like "person",
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but also explicit identities like "Alessandro Striggio".
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</p>
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<p class="commentary">Moreover we can't store the specification alone, because then these can't be
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represented:
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</p>
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<blockquote>
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<p>(tally - arithmetic value of kind K)</p>
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</blockquote>
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<blockquote>
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<p>(name of a kind of enumerated value)</p>
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</blockquote>
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<p class="commentary firstcommentary"><a id="SP4" class="paragraph-anchor"></a><b>§4. </b>Say phrases — text substitutions, that is — need more:
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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">say_details</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">say_phrase</span><span class="plain-syntax">; </span><span class="comment-syntax"> one of the three </span><span class="extract"><span class="extract-syntax">*_SAY_PHRASE</span></span><span class="comment-syntax"> values</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">say_phrase_running_on</span><span class="plain-syntax">; </span><span class="comment-syntax"> ignore implied newlines in previous invocation</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">say_phrase_stream_position</span><span class="plain-syntax">; </span><span class="comment-syntax"> one of the </span><span class="extract"><span class="extract-syntax">SSP_*</span></span><span class="comment-syntax"> values above</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">say_phrase_stream_token_at</span><span class="plain-syntax">; </span><span class="comment-syntax"> word number of say stream token name</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">say_phrase_stream_closing_token_at</span><span class="plain-syntax">; </span><span class="comment-syntax"> ditto for choice of ending</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">say_control_structure</span><span class="plain-syntax">; </span><span class="comment-syntax"> one of the four </span><span class="extract"><span class="extract-syntax">*_SAY_CS</span></span><span class="comment-syntax"> values below</span>
|
|
<span class="plain-syntax">} </span><span class="reserved-syntax">say_details</span><span class="plain-syntax">;</span>
|
|
</pre>
|
|
<ul class="endnotetexts"><li>The structure say_details is accessed in 25/cp and here.</li></ul>
|
|
<p class="commentary firstcommentary"><a id="SP5" class="paragraph-anchor"></a><b>§5. </b>These are for "say control structures", as in "fish [if day is Friday]of
|
|
course[end if]" — the "[if ...]" and "[end if]" both being say phrases which
|
|
are control structures.
|
|
</p>
|
|
|
|
<pre class="definitions code-font"><span class="definition-keyword">define</span> <span class="constant-syntax">NO_SAY_CS</span><span class="plain-syntax"> </span><span class="constant-syntax">0</span>
|
|
<span class="definition-keyword">define</span> <span class="constant-syntax">IF_SAY_CS</span><span class="plain-syntax"> </span><span class="constant-syntax">1</span>
|
|
<span class="definition-keyword">define</span> <span class="constant-syntax">OTHERWISE_SAY_CS</span><span class="plain-syntax"> </span><span class="constant-syntax">2</span>
|
|
<span class="definition-keyword">define</span> <span class="constant-syntax">OTHERWISE_IF_SAY_CS</span><span class="plain-syntax"> </span><span class="constant-syntax">3</span>
|
|
<span class="definition-keyword">define</span> <span class="constant-syntax">END_IF_SAY_CS</span><span class="plain-syntax"> </span><span class="constant-syntax">4</span>
|
|
</pre>
|
|
<p class="commentary firstcommentary"><a id="SP6" class="paragraph-anchor"></a><b>§6. </b>The say stream is the sequence of successive invocations in a single say,
|
|
or in a piece of text with substitutions. Some say phrases are compound in that
|
|
they must occur in a given sequence.
|
|
</p>
|
|
|
|
<p class="commentary">The following markers are used to identify such say phrases:
|
|
</p>
|
|
|
|
<pre class="definitions code-font"><span class="definition-keyword">define</span> <span class="constant-syntax">SSP_NONE</span><span class="plain-syntax"> </span><span class="constant-syntax">0</span>
|
|
<span class="definition-keyword">define</span> <span class="constant-syntax">SSP_START</span><span class="plain-syntax"> </span><span class="constant-syntax">1</span>
|
|
<span class="definition-keyword">define</span> <span class="constant-syntax">SSP_MIDDLE</span><span class="plain-syntax"> </span><span class="constant-syntax">2</span>
|
|
<span class="definition-keyword">define</span> <span class="constant-syntax">SSP_END</span><span class="plain-syntax"> </span><span class="constant-syntax">3</span>
|
|
</pre>
|
|
<p class="commentary firstcommentary"><a id="SP7" class="paragraph-anchor"></a><b>§7. </b>Inline phrase definitions are used to implement what, in other languages,
|
|
would be control-structure keywords, so inline phrases sometimes need bells,
|
|
whistles and doodads which regular phrases don't.
|
|
</p>
|
|
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="reserved-syntax">typedef</span><span class="plain-syntax"> </span><span class="reserved-syntax">struct</span><span class="plain-syntax"> </span><span class="reserved-syntax">inline_details</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">invoked_inline_not_as_call</span><span class="plain-syntax">; </span><span class="comment-syntax"> if </span><span class="extract"><span class="extract-syntax">FALSE</span></span><span class="comment-syntax">, none of the rest applies</span>
|
|
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">let_phrase</span><span class="plain-syntax">; </span><span class="comment-syntax"> one of the </span><span class="extract"><span class="extract-syntax">*_LET_PHRASE</span></span><span class="comment-syntax"> values below</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">assignment_phrase</span><span class="plain-syntax">; </span><span class="comment-syntax"> </span><span class="extract"><span class="extract-syntax">TRUE</span></span><span class="comment-syntax"> if this has to be typechecked as an assignment</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">arithmetical_operation</span><span class="plain-syntax">; </span><span class="comment-syntax"> </span><span class="extract"><span class="extract-syntax">-1</span></span><span class="comment-syntax">, or one of the </span><span class="extract"><span class="extract-syntax">*_OPERATION</span></span><span class="comment-syntax"> constants</span>
|
|
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">block_follows</span><span class="plain-syntax">; </span><span class="comment-syntax"> for inline phrases only: followed by a begin... end block?</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">wchar_t</span><span class="plain-syntax"> *</span><span class="identifier-syntax">only_in_loop</span><span class="plain-syntax">; </span><span class="comment-syntax"> if not null, the phrase can only be used in this block</span>
|
|
<span class="plain-syntax">} </span><span class="reserved-syntax">inline_details</span><span class="plain-syntax">;</span>
|
|
</pre>
|
|
<ul class="endnotetexts"><li>The structure inline_details is accessed in 22/dptd, 25/pi and here.</li></ul>
|
|
<p class="commentary firstcommentary"><a id="SP8" class="paragraph-anchor"></a><b>§8. </b>Where:
|
|
</p>
|
|
|
|
<pre class="definitions code-font"><span class="definition-keyword">define</span> <span class="constant-syntax">NOT_A_LET_PHRASE</span><span class="plain-syntax"> </span><span class="constant-syntax">0</span><span class="plain-syntax"> </span><span class="comment-syntax"> needs to be 0 so that </span><span class="extract"><span class="extract-syntax">let_phrase</span></span><span class="comment-syntax"> can be a C condition</span>
|
|
<span class="definition-keyword">define</span> <span class="constant-syntax">ASSIGNMENT_LET_PHRASE</span><span class="plain-syntax"> </span><span class="constant-syntax">1</span><span class="plain-syntax"> </span><span class="comment-syntax"> the regular "let"</span>
|
|
<span class="definition-keyword">define</span> <span class="constant-syntax">EQUATION_LET_PHRASE</span><span class="plain-syntax"> </span><span class="constant-syntax">2</span><span class="plain-syntax"> </span><span class="comment-syntax"> "let" inviting Inform to solve an equation</span>
|
|
</pre>
|
|
<p class="commentary firstcommentary"><a id="SP9" class="paragraph-anchor"></a><b>§9. Creation. </b></p>
|
|
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="reserved-syntax">ph_type_data</span><span class="plain-syntax"> </span><span class="function-syntax">Phrases::TypeData::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">Phrases::TypeData::new</span></span>:<br/>Phrases - <a href="22-ph.html#SP5_3">§5.3</a><br/>Phrases as Values - <a href="22-pav.html#SP4">§4</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">ph_type_data</span><span class="plain-syntax"> </span><span class="identifier-syntax">phtd</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">phtd</span><span class="plain-syntax">.</span><span class="element-syntax">registration_text</span><span class="plain-syntax"> = </span><span class="identifier-syntax">EMPTY_WORDING</span><span class="plain-syntax">;</span>
|
|
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">phtd</span><span class="plain-syntax">.</span><span class="element-syntax">manner_of_return</span><span class="plain-syntax"> = </span><span class="constant-syntax">DECIDES_NOTHING_MOR</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">phtd</span><span class="plain-syntax">.</span><span class="element-syntax">return_kind</span><span class="plain-syntax"> = </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">;</span>
|
|
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">phtd</span><span class="plain-syntax">.</span><span class="element-syntax">no_words</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">phtd</span><span class="plain-syntax">.</span><span class="element-syntax">no_tokens</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">phtd</span><span class="plain-syntax">.</span><span class="element-syntax">as_say</span><span class="plain-syntax"> = </span><a href="22-ptd.html#SP21" class="function-link"><span class="function-syntax">Phrases::TypeData::new_say_details</span></a><span class="plain-syntax">();</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">phtd</span><span class="plain-syntax">.</span><span class="element-syntax">as_inline</span><span class="plain-syntax"> = </span><a href="22-ptd.html#SP22" class="function-link"><span class="function-syntax">Phrases::TypeData::new_inline_details</span></a><span class="plain-syntax">();</span>
|
|
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">phtd</span><span class="plain-syntax">.</span><span class="element-syntax">now_deprecated</span><span class="plain-syntax"> = </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">phtd</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax">}</span>
|
|
</pre>
|
|
<p class="commentary firstcommentary"><a id="SP10" class="paragraph-anchor"></a><b>§10. </b>And the manner of return is set shortly after that:
|
|
</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">Phrases::TypeData::set_mor</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">Phrases::TypeData::set_mor</span></span>:<br/>Phrases - <a href="22-ph.html#SP5_3">§5.3</a><br/>Describing Phrase Type Data - <a href="22-dptd.html#SP16">§16</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">ph_type_data</span><span class="plain-syntax"> *</span><span class="identifier-syntax">phtd</span><span class="plain-syntax">, </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">mor</span><span class="plain-syntax">, </span><span class="identifier-syntax">kind</span><span class="plain-syntax"> *</span><span class="identifier-syntax">K</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">phtd</span><span class="plain-syntax">-></span><span class="identifier-syntax">manner_of_return</span><span class="plain-syntax"> = </span><span class="identifier-syntax">mor</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">phtd</span><span class="plain-syntax">-></span><span class="identifier-syntax">return_kind</span><span class="plain-syntax"> = </span><span class="identifier-syntax">K</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax">}</span>
|
|
|
|
<span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="function-syntax">Phrases::TypeData::get_mor</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">Phrases::TypeData::get_mor</span></span>:<br/>RValues - <a href="14-rv.html#SP22_7">§22.7</a><br/>Compile Invocations Inline - <a href="25-cii.html#SP3_1_1_4_7_1">§3.1.1.4.7.1</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">ph_type_data</span><span class="plain-syntax"> *</span><span class="identifier-syntax">phtd</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">phtd</span><span class="plain-syntax">-></span><span class="element-syntax">manner_of_return</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax">}</span>
|
|
|
|
<span class="identifier-syntax">kind</span><span class="plain-syntax"> *</span><span class="function-syntax">Phrases::TypeData::get_return_kind</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">Phrases::TypeData::get_return_kind</span></span>:<br/><a href="22-ptd.html#SP12">§12</a><br/>RValues - <a href="14-rv.html#SP22_7">§22.7</a><br/>Dash - <a href="14-ds2.html#SP10_9_1_1">§10.9.1.1</a><br/>Equations - <a href="20-eq.html#SP39_3">§39.3</a><br/>Construction Sequence - <a href="22-cs.html#SP11_6">§11.6</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">ph_type_data</span><span class="plain-syntax"> *</span><span class="identifier-syntax">phtd</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">phtd</span><span class="plain-syntax">-></span><span class="element-syntax">manner_of_return</span><span class="plain-syntax"> == </span><span class="constant-syntax">DECIDES_CONDITION_MOR</span><span class="plain-syntax">) </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">K_truth_state</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">phtd</span><span class="plain-syntax">-></span><span class="element-syntax">return_kind</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></p>
|
|
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="reserved-syntax">char</span><span class="plain-syntax"> *</span><span class="function-syntax">Phrases::TypeData::describe_manner_of_return</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">Phrases::TypeData::describe_manner_of_return</span></span>:<br/>Describing Phrase Type Data - <a href="22-dptd.html#SP1">§1</a><br/>Compile Invocations - <a href="25-ci.html#SP2_1_1_2">§2.1.1.2</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">mor</span><span class="plain-syntax">, </span><span class="reserved-syntax">ph_type_data</span><span class="plain-syntax"> *</span><span class="identifier-syntax">phtd</span><span class="plain-syntax">, </span><span class="identifier-syntax">kind</span><span class="plain-syntax"> **</span><span class="identifier-syntax">K</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">switch</span><span class="plain-syntax"> (</span><span class="identifier-syntax">mor</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">case</span><span class="plain-syntax"> </span><span class="identifier-syntax">DECIDES_NOTHING_MOR:</span><span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="string-syntax">"no value resulting"</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">case</span><span class="plain-syntax"> </span><span class="identifier-syntax">DECIDES_VALUE_MOR:</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> ((</span><span class="identifier-syntax">phtd</span><span class="plain-syntax">) && (</span><span class="identifier-syntax">phtd</span><span class="plain-syntax">-></span><span class="identifier-syntax">return_kind</span><span class="plain-syntax">) && (</span><span class="identifier-syntax">K</span><span class="plain-syntax">)) *</span><span class="identifier-syntax">K</span><span class="plain-syntax"> = </span><span class="identifier-syntax">phtd</span><span class="plain-syntax">-></span><span class="element-syntax">return_kind</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="string-syntax">"a phrase to decide a value"</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">case</span><span class="plain-syntax"> </span><span class="identifier-syntax">DECIDES_CONDITION_MOR:</span><span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="string-syntax">"a phrase to make a decision"</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">case</span><span class="plain-syntax"> </span><span class="identifier-syntax">DECIDES_NOTHING_AND_RETURNS_MOR:</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="string-syntax">"a phrase providing an outcome to a rulebook"</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="string-syntax">"some phrase"</span><span class="plain-syntax">; </span><span class="comment-syntax"> should never actually be needed</span>
|
|
<span class="plain-syntax">}</span>
|
|
</pre>
|
|
<p class="commentary firstcommentary"><a id="SP12" class="paragraph-anchor"></a><b>§12. The kind of a phrase. </b>As noted above, phrases can be such that "kind" is meaningless (consider "if",
|
|
or "now"), but it might be tempting to think that for function-like phrases,
|
|
at least, the kind tells you everything about when they apply. But this isn't
|
|
true. Consider:
|
|
</p>
|
|
|
|
<blockquote>
|
|
<p>To barricade (D - a door): ...</p>
|
|
</blockquote>
|
|
|
|
<blockquote>
|
|
<p>To barricade (D - a closed door): ...</p>
|
|
</blockquote>
|
|
|
|
<p class="commentary">These both have the same kind, <span class="extract"><span class="extract-syntax">phrase door -> nothing</span></span>, and that's reasonable
|
|
because they're safe to use in the same circumstances. But they will apply
|
|
in different circumstances at run-time.
|
|
</p>
|
|
|
|
<p class="commentary">A further subtlety comes with phrases like:
|
|
</p>
|
|
|
|
<blockquote>
|
|
<p>To juxtapose (name of kind of value K) with (alpha - K) and (beta - K): ...</p>
|
|
</blockquote>
|
|
|
|
<p class="commentary">What's the kind of this? From the point of view of compilation, it's
|
|
</p>
|
|
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="plain-syntax"> phrase (K, K) -> nothing</span>
|
|
</pre>
|
|
<p class="commentary">but this is not quite right, because it doesn't make clear how Inform is to
|
|
infer the kind K — should it take it from the value supplied as alpha, or
|
|
beta? This makes a difference in some cases of ambiguity. The answer of
|
|
course is neither: for example, when Inform reads
|
|
</p>
|
|
|
|
<blockquote>
|
|
<p>juxtapose numbers with 12 and 31;</p>
|
|
</blockquote>
|
|
|
|
<p class="commentary">it sets K to "number" from the explicit text "numbers", rather than inferring
|
|
it from the 12 or the 31. So, internally, Inform regards the kind of this
|
|
phrase as
|
|
</p>
|
|
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="plain-syntax"> phrase (K, K, K) -> nothing</span>
|
|
</pre>
|
|
<p class="commentary">even though it will compile actual function calls to "juxtapose" with two
|
|
rather than three arguments. (This is all a sort of poor man's second-order
|
|
logic, since one argument is in effect a kind rather than a value.)
|
|
</p>
|
|
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="identifier-syntax">kind</span><span class="plain-syntax"> *</span><span class="function-syntax">Phrases::TypeData::kind</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">Phrases::TypeData::kind</span></span>:<br/><a href="22-ptd.html#SP13">§13</a><br/>Equations - <a href="20-eq.html#SP46">§46</a><br/>Construction Sequence - <a href="22-cs.html#SP11_5">§11.5</a><br/>Phrases - <a href="22-ph.html#SP5_5">§5.5</a><br/>Describing Phrase Type Data - <a href="22-dptd.html#SP6_5">§6.5</a><br/>Phrases as Values - <a href="22-pav.html#SP4">§4</a><br/>Parse Invocations - <a href="25-pi.html#SP3">§3</a><br/>Compile Phrases - <a href="25-cp.html#SP2_2">§2.2</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">ph_type_data</span><span class="plain-syntax"> *</span><span class="identifier-syntax">phtd</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">kind</span><span class="plain-syntax"> *</span><span class="identifier-syntax">argument_kinds</span><span class="plain-syntax">[</span><span class="constant-syntax">MAX_TOKENS_PER_PHRASE</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">i</span><span class="plain-syntax">, </span><span class="identifier-syntax">j</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">for</span><span class="plain-syntax"> (</span><span class="identifier-syntax">i</span><span class="plain-syntax">=0; </span><span class="identifier-syntax">i</span><span class="function-syntax"><phtd-></span><span class="element-syntax">no_tokens</span><span class="plain-syntax">; </span><span class="identifier-syntax">i</span><span class="plain-syntax">++)</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">argument_kinds</span><span class="plain-syntax">[</span><span class="identifier-syntax">j</span><span class="plain-syntax">++] = </span><span class="identifier-syntax">phtd</span><span class="plain-syntax">-></span><span class="element-syntax">token_sequence</span><span class="plain-syntax">[</span><span class="identifier-syntax">i</span><span class="plain-syntax">].</span><span class="element-syntax">token_kind</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">kind</span><span class="plain-syntax"> *</span><span class="identifier-syntax">R</span><span class="plain-syntax"> = </span><a href="22-ptd.html#SP10" class="function-link"><span class="function-syntax">Phrases::TypeData::get_return_kind</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">phtd</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">Kinds::function_kind</span><span class="plain-syntax">(</span><span class="identifier-syntax">j</span><span class="plain-syntax">, </span><span class="identifier-syntax">argument_kinds</span><span class="plain-syntax">, </span><span class="identifier-syntax">R</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>Whence:
|
|
</p>
|
|
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="function-syntax">Phrases::TypeData::contains_variables</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">Phrases::TypeData::contains_variables</span></span>:<br/>Dash - <a href="14-ds2.html#SP10_9_1_1_4">§10.9.1.1.4</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">ph_type_data</span><span class="plain-syntax"> *</span><span class="identifier-syntax">phtd</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">Kinds::contains</span><span class="plain-syntax">(</span>
|
|
<span class="plain-syntax"> </span><a href="22-ptd.html#SP12" class="function-link"><span class="function-syntax">Phrases::TypeData::kind</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">phtd</span><span class="plain-syntax">),</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">CON_KIND_VARIABLE</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax">}</span>
|
|
</pre>
|
|
<p class="commentary firstcommentary"><a id="SP14" class="paragraph-anchor"></a><b>§14. </b>More specifically:
|
|
</p>
|
|
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="function-syntax">Phrases::TypeData::tokens_contain_variable</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">Phrases::TypeData::tokens_contain_variable</span></span>:<br/>Construction Sequence - <a href="22-cs.html#SP11_6">§11.6</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">ph_type_data</span><span class="plain-syntax"> *</span><span class="identifier-syntax">phtd</span><span class="plain-syntax">, </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">v</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">for</span><span class="plain-syntax"> (</span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">i</span><span class="plain-syntax">=0; </span><span class="identifier-syntax">i</span><span class="function-syntax"><phtd-></span><span class="element-syntax">no_tokens</span><span class="plain-syntax">; </span><span class="identifier-syntax">i</span><span class="plain-syntax">++)</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">Kinds::Behaviour::involves_var</span><span class="plain-syntax">(</span><span class="identifier-syntax">phtd</span><span class="plain-syntax">-></span><span class="element-syntax">token_sequence</span><span class="plain-syntax">[</span><span class="identifier-syntax">i</span><span class="plain-syntax">].</span><span class="element-syntax">token_kind</span><span class="plain-syntax">, </span><span class="identifier-syntax">v</span><span class="plain-syntax">))</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">TRUE</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax">}</span>
|
|
</pre>
|
|
<p class="commentary firstcommentary"><a id="SP15" class="paragraph-anchor"></a><b>§15. The tokens. </b></p>
|
|
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="function-syntax">Phrases::TypeData::get_no_tokens</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">Phrases::TypeData::get_no_tokens</span></span>:<br/>Invocations - <a href="25-in.html#SP17">§17</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">ph_type_data</span><span class="plain-syntax"> *</span><span class="identifier-syntax">phtd</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">phtd</span><span class="plain-syntax">-></span><span class="element-syntax">no_tokens</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax">}</span>
|
|
</pre>
|
|
<p class="commentary firstcommentary"><a id="SP16" class="paragraph-anchor"></a><b>§16. </b></p>
|
|
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="function-syntax">Phrases::TypeData::index_of_token_creating_a_variable</span><span class="plain-syntax">(</span><span class="reserved-syntax">ph_type_data</span><span class="plain-syntax"> *</span><span class="identifier-syntax">phtd</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">i</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">for</span><span class="plain-syntax"> (</span><span class="identifier-syntax">i</span><span class="plain-syntax">=0; </span><span class="identifier-syntax">i</span><span class="function-syntax"><phtd-></span><span class="element-syntax">no_tokens</span><span class="plain-syntax">; </span><span class="identifier-syntax">i</span><span class="plain-syntax">++)</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">phtd</span><span class="plain-syntax">-></span><span class="element-syntax">token_sequence</span><span class="plain-syntax">[</span><span class="identifier-syntax">i</span><span class="plain-syntax">].</span><span class="element-syntax">construct</span><span class="plain-syntax"> == </span><span class="constant-syntax">NEW_LOCAL_PT_CONSTRUCT</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">i</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> -1;</span>
|
|
<span class="plain-syntax">}</span>
|
|
</pre>
|
|
<p class="commentary firstcommentary"><a id="SP17" class="paragraph-anchor"></a><b>§17. </b>This odd-looking question is asked when handling the ambiguity between the
|
|
name of a property ("carrying capacity", say) as a value in its own right,
|
|
and the same name metonymically referring to the value of the property for
|
|
a given instance ("carrying capacity of the player", say).
|
|
</p>
|
|
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="function-syntax">Phrases::TypeData::preamble_requires_property_value</span><span class="plain-syntax">(</span><span class="reserved-syntax">ph_type_data</span><span class="plain-syntax"> *</span><span class="identifier-syntax">phtd</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">i</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">for</span><span class="plain-syntax"> (</span><span class="identifier-syntax">i</span><span class="plain-syntax">=0; </span><span class="identifier-syntax">i</span><span class="function-syntax"><phtd-></span><span class="element-syntax">no_tokens</span><span class="plain-syntax">; </span><span class="identifier-syntax">i</span><span class="plain-syntax">++) {</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><a href="14-lv.html#SP7" class="function-link"><span class="function-syntax">Lvalues::get_storage_form</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">phtd</span><span class="plain-syntax">-></span><span class="element-syntax">token_sequence</span><span class="plain-syntax">[</span><span class="identifier-syntax">i</span><span class="plain-syntax">].</span><span class="element-syntax">to_match</span><span class="plain-syntax">)</span>
|
|
<span class="plain-syntax"> == </span><span class="constant-syntax">PROPERTY_VALUE_NT</span><span class="plain-syntax">)</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> }</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">TRUE</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax">}</span>
|
|
</pre>
|
|
<p class="commentary firstcommentary"><a id="SP18" class="paragraph-anchor"></a><b>§18. Deprecation. </b>Phrases which are "deprecated" are those defined by the Standard Rules, or
|
|
other extensions in the standard Inform installation, which we now think are
|
|
redundant or a bad idea: we don't want to withdraw them without warning, so
|
|
the procedure is to deprecate them in one major build and withdraw them
|
|
in the next.
|
|
</p>
|
|
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="function-syntax">Phrases::TypeData::deprecated</span><button class="popup" onclick="togglePopup('usagePopup10')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup10">Usage of <span class="code-font"><span class="function-syntax">Phrases::TypeData::deprecated</span></span>:<br/>Describing Phrase Type Data - <a href="22-dptd.html#SP6_6">§6.6</a><br/>Phrasebook Index - <a href="22-pi.html#SP1_3">§1.3</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">ph_type_data</span><span class="plain-syntax"> *</span><span class="identifier-syntax">phtd</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">phtd</span><span class="plain-syntax">-></span><span class="element-syntax">now_deprecated</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">Phrases::TypeData::deprecate_phrase</span><button class="popup" onclick="togglePopup('usagePopup11')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup11">Usage of <span class="code-font"><span class="function-syntax">Phrases::TypeData::deprecate_phrase</span></span>:<br/>Describing Phrase Type Data - <a href="22-dptd.html#SP17">§17</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">ph_type_data</span><span class="plain-syntax"> *</span><span class="identifier-syntax">phtd</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">phtd</span><span class="plain-syntax">-></span><span class="identifier-syntax">now_deprecated</span><span class="plain-syntax"> = </span><span class="identifier-syntax">TRUE</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax">}</span>
|
|
</pre>
|
|
<p class="commentary firstcommentary"><a id="SP19" class="paragraph-anchor"></a><b>§19. Adding token names to a stack frame. </b>Suppose Inform is compiling code to represent this:
|
|
</p>
|
|
|
|
<blockquote>
|
|
<p>To sort (T - table name) in (TC - table column) order: ...</p>
|
|
</blockquote>
|
|
|
|
<p class="commentary">On the stack frame for this code, "T" and "TC" will need to be local
|
|
variables — that is, they will need to be locally available as names,
|
|
referring to the values which the phrase was called with.
|
|
</p>
|
|
|
|
<p class="commentary">In that simple example, the phrase preamble makes clear what the kinds of
|
|
"T" and "TC" should be, but it isn't always so simple. For example:
|
|
</p>
|
|
|
|
<blockquote>
|
|
<p>To add (new entry - K) to (L - list of values of kind K): ...</p>
|
|
</blockquote>
|
|
|
|
<p class="commentary">Here the preamble allows a wide range of kinds, and Inform compiles
|
|
different versions of the code for each value of K actually needed. So
|
|
the following routine is called with a particular kind to be used. For
|
|
instance, if the source text ever contains an invocation like:
|
|
</p>
|
|
|
|
<blockquote>
|
|
<p>add 14 to the list of scores;</p>
|
|
</blockquote>
|
|
|
|
<p class="commentary">then at some point Inform will have to compile a version of the phrase
|
|
which has the kind:
|
|
</p>
|
|
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="plain-syntax"> phrase (number, list of numbers) -> nothing</span>
|
|
</pre>
|
|
<p class="commentary">The routine below then dismantles that kind to extract the kinds of the
|
|
arguments, "number" and then "list of numbers", and creates local
|
|
variables "new entry" and "L" with those kinds.
|
|
</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">Phrases::TypeData::into_stack_frame</span><button class="popup" onclick="togglePopup('usagePopup12')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup12">Usage of <span class="code-font"><span class="function-syntax">Phrases::TypeData::into_stack_frame</span></span>:<br/>Phrases - <a href="22-ph.html#SP5_5">§5.5</a><br/>Compile Phrases - <a href="25-cp.html#SP2_2">§2.2</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">ph_stack_frame</span><span class="plain-syntax"> *</span><span class="identifier-syntax">phsf</span><span class="plain-syntax">,</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">ph_type_data</span><span class="plain-syntax"> *</span><span class="identifier-syntax">phtd</span><span class="plain-syntax">, </span><span class="identifier-syntax">kind</span><span class="plain-syntax"> *</span><span class="identifier-syntax">kind_in_this_compilation</span><span class="plain-syntax">, </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">first</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">Kinds::get_construct</span><span class="plain-syntax">(</span><span class="identifier-syntax">kind_in_this_compilation</span><span class="plain-syntax">) != </span><span class="identifier-syntax">CON_phrase</span><span class="plain-syntax">)</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">internal_error</span><span class="plain-syntax">(</span><span class="string-syntax">"no function kind"</span><span class="plain-syntax">);</span>
|
|
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">kind</span><span class="plain-syntax"> *</span><span class="identifier-syntax">args</span><span class="plain-syntax"> = </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">, *</span><span class="identifier-syntax">ret</span><span class="plain-syntax"> = </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">Kinds::binary_construction_material</span><span class="plain-syntax">(</span><span class="identifier-syntax">kind_in_this_compilation</span><span class="plain-syntax">, &</span><span class="identifier-syntax">args</span><span class="plain-syntax">, &</span><span class="identifier-syntax">ret</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">i</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">for</span><span class="plain-syntax"> (</span><span class="identifier-syntax">i</span><span class="plain-syntax">=0; </span><span class="identifier-syntax">i</span><span class="function-syntax"><phtd-></span><span class="element-syntax">no_tokens</span><span class="plain-syntax">; </span><span class="identifier-syntax">i</span><span class="plain-syntax">++) {</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">kind</span><span class="plain-syntax"> *</span><span class="identifier-syntax">K</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">Kinds::get_construct</span><span class="plain-syntax">(</span><span class="identifier-syntax">args</span><span class="plain-syntax">) != </span><span class="identifier-syntax">CON_TUPLE_ENTRY</span><span class="plain-syntax">) </span><span class="identifier-syntax">internal_error</span><span class="plain-syntax">(</span><span class="string-syntax">"bad tupling"</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">Kinds::binary_construction_material</span><span class="plain-syntax">(</span><span class="identifier-syntax">args</span><span class="plain-syntax">, &</span><span class="identifier-syntax">K</span><span class="plain-syntax">, &</span><span class="identifier-syntax">args</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">first</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><a href="24-lv.html#SP7" class="function-link"><span class="function-syntax">LocalVariables::add_call_parameter</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">phsf</span><span class="plain-syntax">, </span><span class="identifier-syntax">phtd</span><span class="plain-syntax">-></span><span class="element-syntax">token_sequence</span><span class="plain-syntax">[</span><span class="identifier-syntax">i</span><span class="plain-syntax">].</span><span class="element-syntax">token_name</span><span class="plain-syntax">, </span><span class="identifier-syntax">K</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> } </span><span class="reserved-syntax">else</span><span class="plain-syntax"> {</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">local_variable</span><span class="plain-syntax"> *</span><span class="identifier-syntax">lvar</span><span class="plain-syntax"> = </span><a href="24-lv.html#SP22" class="function-link"><span class="function-syntax">LocalVariables::get_ith_parameter</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">i</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">lvar</span><span class="plain-syntax">) </span><a href="24-lv.html#SP37" class="function-link"><span class="function-syntax">LocalVariables::set_kind</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">lvar</span><span class="plain-syntax">, </span><span class="identifier-syntax">K</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> }</span>
|
|
<span class="plain-syntax"> }</span>
|
|
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">Kinds::eq</span><span class="plain-syntax">(</span><span class="identifier-syntax">ret</span><span class="plain-syntax">, </span><span class="identifier-syntax">K_nil</span><span class="plain-syntax">)) </span><a href="24-sf.html#SP8" class="function-link"><span class="function-syntax">Frames::set_kind_returned</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">phsf</span><span class="plain-syntax">, </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">else</span><span class="plain-syntax"> </span><a href="24-sf.html#SP8" class="function-link"><span class="function-syntax">Frames::set_kind_returned</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">phsf</span><span class="plain-syntax">, </span><span class="identifier-syntax">ret</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax">}</span>
|
|
</pre>
|
|
<p class="commentary firstcommentary"><a id="SP20" class="paragraph-anchor"></a><b>§20. Comparison of PHTDs. </b>This is used when sorting "To..." phrases in order of logical priority:
|
|
see Phrases for the return codes.
|
|
</p>
|
|
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="function-syntax">Phrases::TypeData::comparison</span><button class="popup" onclick="togglePopup('usagePopup13')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup13">Usage of <span class="code-font"><span class="function-syntax">Phrases::TypeData::comparison</span></span>:<br/>To Phrases - <a href="22-tp.html#SP3">§3</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">ph_type_data</span><span class="plain-syntax"> *</span><span class="identifier-syntax">phtd1</span><span class="plain-syntax">, </span><span class="reserved-syntax">ph_type_data</span><span class="plain-syntax"> *</span><span class="identifier-syntax">phtd2</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">phtd1</span><span class="plain-syntax"> == </span><span class="identifier-syntax">phtd2</span><span class="plain-syntax">) </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="constant-syntax">EQUAL_PH</span><span class="plain-syntax">;</span>
|
|
|
|
<span class="plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="22-ptd.html#SP20_1" class="named-paragraph-link"><span class="named-paragraph">Loop construct keywords have priority</span><span class="named-paragraph-number">20.1</span></a></span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="22-ptd.html#SP20_2" class="named-paragraph-link"><span class="named-paragraph">More fixed words beats fewer</span><span class="named-paragraph-number">20.2</span></a></span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="22-ptd.html#SP20_3" class="named-paragraph-link"><span class="named-paragraph">More tokens beats fewer</span><span class="named-paragraph-number">20.3</span></a></span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="22-ptd.html#SP20_4" class="named-paragraph-link"><span class="named-paragraph">Next use alphabetical order, counting tokens as after the Zs</span><span class="named-paragraph-number">20.4</span></a></span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="22-ptd.html#SP20_5" class="named-paragraph-link"><span class="named-paragraph">Finally try comparing the to-match specifications of the tokens</span><span class="named-paragraph-number">20.5</span></a></span><span class="plain-syntax">;</span>
|
|
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="constant-syntax">INCOMPARABLE_PH</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax">}</span>
|
|
</pre>
|
|
<p class="commentary firstcommentary"><a id="SP20_1" class="paragraph-anchor"></a><b>§20.1. </b><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Loop construct keywords have priority</span><span class="named-paragraph-number">20.1</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">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">i</span><span class="plain-syntax"> = </span><a href="22-ptd.html#SP28" class="function-link"><span class="function-syntax">Phrases::TypeData::inline_type_data_comparison</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">phtd1</span><span class="plain-syntax">, </span><span class="identifier-syntax">phtd2</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">i</span><span class="plain-syntax"> != </span><span class="constant-syntax">EQUAL_PH</span><span class="plain-syntax">) </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">i</span><span class="plain-syntax">;</span>
|
|
</pre>
|
|
<ul class="endnotetexts"><li>This code is used in <a href="22-ptd.html#SP20">§20</a>.</li></ul>
|
|
<p class="commentary firstcommentary"><a id="SP20_2" class="paragraph-anchor"></a><b>§20.2. </b><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">More fixed words beats fewer</span><span class="named-paragraph-number">20.2</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">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">fw1</span><span class="plain-syntax"> = </span><span class="identifier-syntax">phtd1</span><span class="plain-syntax">-></span><span class="element-syntax">no_words</span><span class="plain-syntax"> - </span><span class="identifier-syntax">phtd1</span><span class="plain-syntax">-></span><span class="element-syntax">no_tokens</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">fw2</span><span class="plain-syntax"> = </span><span class="identifier-syntax">phtd2</span><span class="plain-syntax">-></span><span class="element-syntax">no_words</span><span class="plain-syntax"> - </span><span class="identifier-syntax">phtd2</span><span class="plain-syntax">-></span><span class="element-syntax">no_tokens</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">fw1</span><span class="plain-syntax"> > </span><span class="identifier-syntax">fw2</span><span class="plain-syntax">) </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="constant-syntax">BEFORE_PH</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">fw1</span><span class="plain-syntax"> < </span><span class="identifier-syntax">fw2</span><span class="plain-syntax">) </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="constant-syntax">AFTER_PH</span><span class="plain-syntax">;</span>
|
|
</pre>
|
|
<ul class="endnotetexts"><li>This code is used in <a href="22-ptd.html#SP20">§20</a>.</li></ul>
|
|
<p class="commentary firstcommentary"><a id="SP20_3" class="paragraph-anchor"></a><b>§20.3. </b><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">More tokens beats fewer</span><span class="named-paragraph-number">20.3</span></span><span class="comment-syntax"> =</span>
|
|
</p>
|
|
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">phtd1</span><span class="plain-syntax">-></span><span class="element-syntax">no_tokens</span><span class="plain-syntax"> > </span><span class="identifier-syntax">phtd2</span><span class="plain-syntax">-></span><span class="element-syntax">no_tokens</span><span class="plain-syntax">) </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="constant-syntax">BEFORE_PH</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">phtd1</span><span class="plain-syntax">-></span><span class="element-syntax">no_tokens</span><span class="plain-syntax"> < </span><span class="identifier-syntax">phtd2</span><span class="plain-syntax">-></span><span class="element-syntax">no_tokens</span><span class="plain-syntax">) </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="constant-syntax">AFTER_PH</span><span class="plain-syntax">;</span>
|
|
</pre>
|
|
<ul class="endnotetexts"><li>This code is used in <a href="22-ptd.html#SP20">§20</a>.</li></ul>
|
|
<p class="commentary firstcommentary"><a id="SP20_4" class="paragraph-anchor"></a><b>§20.4. </b>At this point the two phrases have the same number of words and tokens,
|
|
but the words may be different and/or the tokens in different places.
|
|
We might for example be comparing these two:
|
|
</p>
|
|
|
|
<blockquote>
|
|
<p>To grab (the prize - an object) swiftly: ...</p>
|
|
</blockquote>
|
|
|
|
<blockquote>
|
|
<p>To grab at (the rosette - an object): ...</p>
|
|
</blockquote>
|
|
|
|
<p class="commentary">We alphabetical order, placing "grab ZZZZZZ swiftly" after "grab at ZZZZZZ".
|
|
</p>
|
|
|
|
<p class="commentary"><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Next use alphabetical order, counting tokens as after the Zs</span><span class="named-paragraph-number">20.4</span></span><span class="comment-syntax"> =</span>
|
|
</p>
|
|
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">i</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">for</span><span class="plain-syntax"> (</span><span class="identifier-syntax">i</span><span class="plain-syntax">=0; </span><span class="identifier-syntax">i</span><span class="function-syntax"><phtd1-></span><span class="element-syntax">no_words</span><span class="plain-syntax">; </span><span class="identifier-syntax">i</span><span class="plain-syntax">++) {</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">phtd1</span><span class="plain-syntax">-></span><span class="element-syntax">word_sequence</span><span class="plain-syntax">[</span><span class="identifier-syntax">i</span><span class="plain-syntax">] < </span><span class="constant-syntax">MAX_TOKENS_PER_PHRASE</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">phtd2</span><span class="plain-syntax">-></span><span class="element-syntax">word_sequence</span><span class="plain-syntax">[</span><span class="identifier-syntax">i</span><span class="plain-syntax">] >= </span><span class="constant-syntax">MAX_TOKENS_PER_PHRASE</span><span class="plain-syntax">)</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="constant-syntax">AFTER_PH</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> } </span><span class="reserved-syntax">else</span><span class="plain-syntax"> {</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">phtd2</span><span class="plain-syntax">-></span><span class="element-syntax">word_sequence</span><span class="plain-syntax">[</span><span class="identifier-syntax">i</span><span class="plain-syntax">] < </span><span class="constant-syntax">MAX_TOKENS_PER_PHRASE</span><span class="plain-syntax">) </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="constant-syntax">BEFORE_PH</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">x</span><span class="plain-syntax"> = </span><span class="identifier-syntax">Wide::cmp</span><span class="plain-syntax">(</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">Lexer::word_raw_text</span><span class="plain-syntax">(</span><span class="identifier-syntax">phtd1</span><span class="plain-syntax">-></span><span class="element-syntax">word_sequence</span><span class="plain-syntax">[</span><span class="identifier-syntax">i</span><span class="plain-syntax">]),</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">Lexer::word_raw_text</span><span class="plain-syntax">(</span><span class="identifier-syntax">phtd2</span><span class="plain-syntax">-></span><span class="element-syntax">word_sequence</span><span class="plain-syntax">[</span><span class="identifier-syntax">i</span><span class="plain-syntax">]));</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">x</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">AFTER_PH</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="constant-syntax">0</span><span class="plain-syntax">) </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="constant-syntax">BEFORE_PH</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> }</span>
|
|
<span class="plain-syntax"> }</span>
|
|
</pre>
|
|
<ul class="endnotetexts"><li>This code is used in <a href="22-ptd.html#SP20">§20</a>.</li></ul>
|
|
<p class="commentary firstcommentary"><a id="SP20_5" class="paragraph-anchor"></a><b>§20.5. </b>Now our two phrases have identical wording, and tokens in the same positions,
|
|
but may have different specifications for them. For example:
|
|
</p>
|
|
|
|
<blockquote>
|
|
<p>To grab at (the rosette - an object): ...</p>
|
|
</blockquote>
|
|
|
|
<blockquote>
|
|
<p>To grab at (the rosette - a thing on the table): ...</p>
|
|
</blockquote>
|
|
|
|
<p class="commentary">We give priority to the second of these, because it's more specific. On
|
|
the other hand these are simply incomparable:
|
|
</p>
|
|
|
|
<blockquote>
|
|
<p>To grab at (the rosette - an object): ...</p>
|
|
</blockquote>
|
|
|
|
<blockquote>
|
|
<p>To grab at (the prime - a number): ...</p>
|
|
</blockquote>
|
|
|
|
<p class="commentary"><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Finally try comparing the to-match specifications of the tokens</span><span class="named-paragraph-number">20.5</span></span><span class="comment-syntax"> =</span>
|
|
</p>
|
|
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">i</span><span class="plain-syntax">, </span><span class="identifier-syntax">possibly_subschema</span><span class="plain-syntax"> = </span><span class="identifier-syntax">TRUE</span><span class="plain-syntax">, </span><span class="identifier-syntax">possibly_superschema</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">for</span><span class="plain-syntax"> (</span><span class="identifier-syntax">i</span><span class="plain-syntax">=0; </span><span class="identifier-syntax">i</span><span class="function-syntax"><phtd1-></span><span class="element-syntax">no_tokens</span><span class="plain-syntax">; </span><span class="identifier-syntax">i</span><span class="plain-syntax">++) {</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">parse_node</span><span class="plain-syntax"> *</span><span class="identifier-syntax">spec1</span><span class="plain-syntax"> = </span><span class="identifier-syntax">phtd1</span><span class="plain-syntax">-></span><span class="element-syntax">token_sequence</span><span class="plain-syntax">[</span><span class="identifier-syntax">i</span><span class="plain-syntax">].</span><span class="element-syntax">to_match</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">parse_node</span><span class="plain-syntax"> *</span><span class="identifier-syntax">spec2</span><span class="plain-syntax"> = </span><span class="identifier-syntax">phtd2</span><span class="plain-syntax">-></span><span class="element-syntax">token_sequence</span><span class="plain-syntax">[</span><span class="identifier-syntax">i</span><span class="plain-syntax">].</span><span class="element-syntax">to_match</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="22-ptd.html#SP20_5_2" class="named-paragraph-link"><span class="named-paragraph">See if the ith token rules out being a sub- or superschema</span><span class="named-paragraph-number">20.5.2</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">possibly_subschema</span><span class="plain-syntax">) || (</span><span class="identifier-syntax">possibly_superschema</span><span class="plain-syntax">))</span>
|
|
<span class="plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="22-ptd.html#SP20_5_1" class="named-paragraph-link"><span class="named-paragraph">These are worryingly similar in wording, so check the return kinds</span><span class="named-paragraph-number">20.5.1</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">possibly_subschema</span><span class="plain-syntax">) </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="constant-syntax">SUBSCHEMA_PH</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">possibly_superschema</span><span class="plain-syntax">) </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="constant-syntax">SUPERSCHEMA_PH</span><span class="plain-syntax">;</span>
|
|
</pre>
|
|
<ul class="endnotetexts"><li>This code is used in <a href="22-ptd.html#SP20">§20</a>.</li></ul>
|
|
<p class="commentary firstcommentary"><a id="SP20_5_1" class="paragraph-anchor"></a><b>§20.5.1. </b>We need to watch out for this sort of thing:
|
|
</p>
|
|
|
|
<blockquote>
|
|
<p>To decide what number is my special value: decide on 4.</p>
|
|
</blockquote>
|
|
|
|
<blockquote>
|
|
<p>To decide what person is my special value: decide on the player.</p>
|
|
</blockquote>
|
|
|
|
<p class="commentary">which makes "my special value" of a kind which can't be decided; but
|
|
we can't just compare the return kinds, because that might pick up
|
|
false positives in the case of kind variables, etc.
|
|
</p>
|
|
|
|
<p class="commentary"><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">These are worryingly similar in wording, so check the return kinds</span><span class="named-paragraph-number">20.5.1</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">phtd1</span><span class="plain-syntax">-></span><span class="element-syntax">manner_of_return</span><span class="plain-syntax"> != </span><span class="identifier-syntax">phtd2</span><span class="plain-syntax">-></span><span class="element-syntax">manner_of_return</span><span class="plain-syntax">) ||</span>
|
|
<span class="plain-syntax"> ((</span><span class="identifier-syntax">Kinds::eq</span><span class="plain-syntax">(</span><span class="identifier-syntax">phtd1</span><span class="plain-syntax">-></span><span class="element-syntax">return_kind</span><span class="plain-syntax">, </span><span class="identifier-syntax">phtd2</span><span class="plain-syntax">-></span><span class="element-syntax">return_kind</span><span class="plain-syntax">) == </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">) &&</span>
|
|
<span class="plain-syntax"> (</span><span class="identifier-syntax">Kinds::Behaviour::definite</span><span class="plain-syntax">(</span><span class="identifier-syntax">phtd1</span><span class="plain-syntax">-></span><span class="element-syntax">return_kind</span><span class="plain-syntax">))))</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="constant-syntax">CONFLICTED_PH</span><span class="plain-syntax">;</span>
|
|
</pre>
|
|
<ul class="endnotetexts"><li>This code is used in <a href="22-ptd.html#SP20_5">§20.5</a>.</li></ul>
|
|
<p class="commentary firstcommentary"><a id="SP20_5_2" class="paragraph-anchor"></a><b>§20.5.2. </b>We delegate to <span class="extract"><span class="extract-syntax">Specifications::compare_specificity</span></span> to decide what's more
|
|
specific, but note that this routine can return 0 (meaning, equally
|
|
specific) for two different reasons: because the specifications are basically
|
|
the same as each other, or because they're completely different but have
|
|
about the same complexity. The <span class="extract"><span class="extract-syntax">wont_mix</span></span> flag is set in the latter case.
|
|
</p>
|
|
|
|
<p class="commentary">Because the test is made by seeing if one specification matches another, we
|
|
also protect it from the special "nonexisting variable" tokens,
|
|
used only in inline phrase preambles. It would otherwise think "existing
|
|
variable" is more specific than "new variable", which isn't helpful.
|
|
</p>
|
|
|
|
<p class="commentary"><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">See if the ith token rules out being a sub- or superschema</span><span class="named-paragraph-number">20.5.2</span></span><span class="comment-syntax"> =</span>
|
|
</p>
|
|
|
|
<pre class="displayed-code all-displayed-code code-font">
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<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> ((</span><span class="identifier-syntax">phtd1</span><span class="plain-syntax">-></span><span class="element-syntax">token_sequence</span><span class="plain-syntax">[</span><span class="identifier-syntax">i</span><span class="plain-syntax">].</span><span class="element-syntax">construct</span><span class="plain-syntax"> == </span><span class="constant-syntax">NEW_LOCAL_PT_CONSTRUCT</span><span class="plain-syntax">) &&</span>
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<span class="plain-syntax"> (</span><span class="identifier-syntax">phtd2</span><span class="plain-syntax">-></span><span class="element-syntax">token_sequence</span><span class="plain-syntax">[</span><span class="identifier-syntax">i</span><span class="plain-syntax">].</span><span class="element-syntax">construct</span><span class="plain-syntax"> != </span><span class="constant-syntax">NEW_LOCAL_PT_CONSTRUCT</span><span class="plain-syntax">)) {</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">possibly_superschema</span><span class="plain-syntax"> = </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> } </span><span class="reserved-syntax">else</span><span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> ((</span><span class="identifier-syntax">phtd1</span><span class="plain-syntax">-></span><span class="element-syntax">token_sequence</span><span class="plain-syntax">[</span><span class="identifier-syntax">i</span><span class="plain-syntax">].</span><span class="element-syntax">construct</span><span class="plain-syntax"> != </span><span class="constant-syntax">NEW_LOCAL_PT_CONSTRUCT</span><span class="plain-syntax">) &&</span>
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<span class="plain-syntax"> (</span><span class="identifier-syntax">phtd2</span><span class="plain-syntax">-></span><span class="element-syntax">token_sequence</span><span class="plain-syntax">[</span><span class="identifier-syntax">i</span><span class="plain-syntax">].</span><span class="element-syntax">construct</span><span class="plain-syntax"> == </span><span class="constant-syntax">NEW_LOCAL_PT_CONSTRUCT</span><span class="plain-syntax">)) {</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">possibly_subschema</span><span class="plain-syntax"> = </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> } </span><span class="reserved-syntax">else</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">wont_mix</span><span class="plain-syntax"> = </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">r</span><span class="plain-syntax"> = </span><a href="14-sp.html#SP7" class="function-link"><span class="function-syntax">Specifications::compare_specificity</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">spec1</span><span class="plain-syntax">, </span><span class="identifier-syntax">spec2</span><span class="plain-syntax">, &</span><span class="identifier-syntax">wont_mix</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">wont_mix</span><span class="plain-syntax">) { </span><span class="identifier-syntax">possibly_subschema</span><span class="plain-syntax"> = </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">; </span><span class="identifier-syntax">possibly_superschema</span><span class="plain-syntax"> = </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">; }</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">else</span><span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">r</span><span class="plain-syntax"> < </span><span class="constant-syntax">0</span><span class="plain-syntax">) </span><span class="identifier-syntax">possibly_subschema</span><span class="plain-syntax"> = </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">else</span><span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">r</span><span class="plain-syntax"> > </span><span class="constant-syntax">0</span><span class="plain-syntax">) </span><span class="identifier-syntax">possibly_superschema</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>
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</pre>
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<ul class="endnotetexts"><li>This code is used in <a href="22-ptd.html#SP20_5">§20.5</a>.</li></ul>
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<p class="commentary firstcommentary"><a id="SP21" class="paragraph-anchor"></a><b>§21. Say phrases. </b></p>
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<pre class="definitions code-font"><span class="definition-keyword">define</span> <span class="constant-syntax">NOT_A_SAY_PHRASE</span><span class="plain-syntax"> </span><span class="constant-syntax">0</span><span class="plain-syntax"> </span><span class="comment-syntax"> needs to be 0 so that </span><span class="extract"><span class="extract-syntax">sd.say_phrase</span></span><span class="comment-syntax"> can be a C condition</span>
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<span class="definition-keyword">define</span> <span class="constant-syntax">A_MISCELLANEOUS_SAY_PHRASE</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">THE_PRIMORDIAL_SAY_PHRASE</span><span class="plain-syntax"> </span><span class="constant-syntax">2</span>
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</pre>
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<pre class="displayed-code all-displayed-code code-font">
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<span class="reserved-syntax">say_details</span><span class="plain-syntax"> </span><span class="function-syntax">Phrases::TypeData::new_say_details</span><button class="popup" onclick="togglePopup('usagePopup14')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup14">Usage of <span class="code-font"><span class="function-syntax">Phrases::TypeData::new_say_details</span></span>:<br/><a href="22-ptd.html#SP9">§9</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">void</span><span class="plain-syntax">) {</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">say_details</span><span class="plain-syntax"> </span><span class="identifier-syntax">sd</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">sd</span><span class="plain-syntax">.</span><span class="element-syntax">say_phrase</span><span class="plain-syntax"> = </span><span class="constant-syntax">NOT_A_SAY_PHRASE</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">sd</span><span class="plain-syntax">.</span><span class="element-syntax">say_phrase_running_on</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">sd</span><span class="plain-syntax">.</span><span class="element-syntax">say_control_structure</span><span class="plain-syntax"> = </span><span class="constant-syntax">NO_SAY_CS</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">sd</span><span class="plain-syntax">.</span><span class="element-syntax">say_phrase_stream_position</span><span class="plain-syntax"> = </span><span class="constant-syntax">SSP_NONE</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">sd</span><span class="plain-syntax">.</span><span class="element-syntax">say_phrase_stream_token_at</span><span class="plain-syntax"> = -1;</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">sd</span><span class="plain-syntax">.</span><span class="element-syntax">say_phrase_stream_closing_token_at</span><span class="plain-syntax"> = -1;</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">sd</span><span class="plain-syntax">;</span>
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<span class="plain-syntax">}</span>
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<span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">first_say_made</span><span class="plain-syntax"> = </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">;</span>
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<span class="reserved-syntax">void</span><span class="plain-syntax"> </span><span class="function-syntax">Phrases::TypeData::make_sd</span><button class="popup" onclick="togglePopup('usagePopup15')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup15">Usage of <span class="code-font"><span class="function-syntax">Phrases::TypeData::make_sd</span></span>:<br/>Describing Phrase Type Data - <a href="22-dptd.html#SP17_2">§17.2</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">say_details</span><span class="plain-syntax"> *</span><span class="identifier-syntax">sd</span><span class="plain-syntax">, </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">ro</span><span class="plain-syntax">, </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">cs</span><span class="plain-syntax">, </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">pos</span><span class="plain-syntax">, </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">at</span><span class="plain-syntax">, </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">cat</span><span class="plain-syntax">) {</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">sd</span><span class="plain-syntax">-></span><span class="element-syntax">say_phrase</span><span class="plain-syntax"> = </span><span class="constant-syntax">A_MISCELLANEOUS_SAY_PHRASE</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">first_say_made</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">sd</span><span class="plain-syntax">-></span><span class="element-syntax">say_phrase</span><span class="plain-syntax"> = </span><span class="constant-syntax">THE_PRIMORDIAL_SAY_PHRASE</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">first_say_made</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>
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<span class="plain-syntax"> </span><span class="identifier-syntax">sd</span><span class="plain-syntax">-></span><span class="element-syntax">say_phrase_running_on</span><span class="plain-syntax"> = </span><span class="identifier-syntax">ro</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">cs</span><span class="plain-syntax"> >= </span><span class="constant-syntax">0</span><span class="plain-syntax">) </span><span class="identifier-syntax">sd</span><span class="plain-syntax">-></span><span class="element-syntax">say_control_structure</span><span class="plain-syntax"> = </span><span class="identifier-syntax">cs</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">pos</span><span class="plain-syntax"> >= </span><span class="constant-syntax">0</span><span class="plain-syntax">) </span><span class="identifier-syntax">sd</span><span class="plain-syntax">-></span><span class="element-syntax">say_phrase_stream_position</span><span class="plain-syntax"> = </span><span class="identifier-syntax">pos</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">at</span><span class="plain-syntax"> >= </span><span class="constant-syntax">0</span><span class="plain-syntax">) </span><span class="identifier-syntax">sd</span><span class="plain-syntax">-></span><span class="element-syntax">say_phrase_stream_token_at</span><span class="plain-syntax"> = </span><span class="identifier-syntax">at</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">cat</span><span class="plain-syntax"> >= </span><span class="constant-syntax">0</span><span class="plain-syntax">) </span><span class="identifier-syntax">sd</span><span class="plain-syntax">-></span><span class="element-syntax">say_phrase_stream_closing_token_at</span><span class="plain-syntax"> = </span><span class="identifier-syntax">cat</span><span class="plain-syntax">;</span>
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<span class="plain-syntax">}</span>
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<span class="reserved-syntax">void</span><span class="plain-syntax"> </span><span class="function-syntax">Phrases::TypeData::log_say_details</span><button class="popup" onclick="togglePopup('usagePopup16')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup16">Usage of <span class="code-font"><span class="function-syntax">Phrases::TypeData::log_say_details</span></span>:<br/>Describing Phrase Type Data - <a href="22-dptd.html#SP1">§1</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">say_details</span><span class="plain-syntax"> </span><span class="identifier-syntax">sd</span><span class="plain-syntax">) {</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">switch</span><span class="plain-syntax"> (</span><span class="identifier-syntax">sd</span><span class="plain-syntax">.</span><span class="element-syntax">say_phrase</span><span class="plain-syntax">) {</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">case</span><span class="plain-syntax"> </span><span class="identifier-syntax">NOT_A_SAY_PHRASE:</span><span class="plain-syntax"> </span><span class="reserved-syntax">break</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">case</span><span class="plain-syntax"> </span><span class="identifier-syntax">A_MISCELLANEOUS_SAY_PHRASE:</span><span class="plain-syntax"> </span><span class="identifier-syntax">LOG</span><span class="plain-syntax">(</span><span class="string-syntax">" A_MISCELLANEOUS_SAY_PHRASE\n"</span><span class="plain-syntax">); </span><span class="reserved-syntax">break</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">case</span><span class="plain-syntax"> </span><span class="identifier-syntax">THE_PRIMORDIAL_SAY_PHRASE:</span><span class="plain-syntax"> </span><span class="identifier-syntax">LOG</span><span class="plain-syntax">(</span><span class="string-syntax">" THE_PRIMORDIAL_SAY_PHRASE\n"</span><span class="plain-syntax">); </span><span class="reserved-syntax">break</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">default:</span><span class="plain-syntax"> </span><span class="identifier-syntax">LOG</span><span class="plain-syntax">(</span><span class="string-syntax">" <invalid say phrase status>\n"</span><span class="plain-syntax">); </span><span class="reserved-syntax">break</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">sd</span><span class="plain-syntax">.</span><span class="identifier-syntax">say_phrase_running_on</span><span class="plain-syntax">)</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">LOG</span><span class="plain-syntax">(</span><span class="string-syntax">" running on from previous say invocation without implied newline\n"</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">switch</span><span class="plain-syntax"> (</span><span class="identifier-syntax">sd</span><span class="plain-syntax">.</span><span class="element-syntax">say_control_structure</span><span class="plain-syntax">) {</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">case</span><span class="plain-syntax"> </span><span class="identifier-syntax">NO_SAY_CS:</span><span class="plain-syntax"> </span><span class="reserved-syntax">break</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">case</span><span class="plain-syntax"> </span><span class="identifier-syntax">IF_SAY_CS:</span><span class="plain-syntax"> </span><span class="identifier-syntax">LOG</span><span class="plain-syntax">(</span><span class="string-syntax">" IF_SAY_CS\n"</span><span class="plain-syntax">); </span><span class="reserved-syntax">break</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">case</span><span class="plain-syntax"> </span><span class="identifier-syntax">END_IF_SAY_CS:</span><span class="plain-syntax"> </span><span class="identifier-syntax">LOG</span><span class="plain-syntax">(</span><span class="string-syntax">" END_IF_SAY_CS\n"</span><span class="plain-syntax">); </span><span class="reserved-syntax">break</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">case</span><span class="plain-syntax"> </span><span class="identifier-syntax">OTHERWISE_SAY_CS:</span><span class="plain-syntax"> </span><span class="identifier-syntax">LOG</span><span class="plain-syntax">(</span><span class="string-syntax">" OTHERWISE_SAY_CS\n"</span><span class="plain-syntax">); </span><span class="reserved-syntax">break</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">case</span><span class="plain-syntax"> </span><span class="identifier-syntax">OTHERWISE_IF_SAY_CS:</span><span class="plain-syntax"> </span><span class="identifier-syntax">LOG</span><span class="plain-syntax">(</span><span class="string-syntax">" OTHERWISE_IF_SAY_CS\n"</span><span class="plain-syntax">); </span><span class="reserved-syntax">break</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">default:</span><span class="plain-syntax"> </span><span class="identifier-syntax">LOG</span><span class="plain-syntax">(</span><span class="string-syntax">" <invalid say phrase status>\n"</span><span class="plain-syntax">); </span><span class="reserved-syntax">break</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> }</span>
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<span class="plain-syntax">}</span>
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<span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="function-syntax">Phrases::TypeData::is_a_say_phrase</span><button class="popup" onclick="togglePopup('usagePopup17')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup17">Usage of <span class="code-font"><span class="function-syntax">Phrases::TypeData::is_a_say_phrase</span></span>:<br/>Dash - <a href="14-ds2.html#SP10_9_1_1_8">§10.9.1.1.8</a><br/>Describing Phrase Type Data - <a href="22-dptd.html#SP6_5">§6.5</a><br/>Invocations - <a href="25-in.html#SP21">§21</a><br/>Parse Invocations - <a href="25-pi.html#SP2">§2</a><br/>Compile Phrases - <a href="25-cp.html#SP4_2_1">§4.2.1</a>, <a href="25-cp.html#SP5">§5</a>, <a href="25-cp.html#SP7_1">§7.1</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">phrase</span><span class="plain-syntax"> *</span><span class="identifier-syntax">ph</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">ph</span><span class="plain-syntax">) && (</span><span class="identifier-syntax">ph</span><span class="plain-syntax">-></span><span class="element-syntax">type_data</span><span class="plain-syntax">.</span><span class="element-syntax">as_say</span><span class="plain-syntax">.</span><span class="element-syntax">say_phrase</span><span class="plain-syntax">)) </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">TRUE</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">;</span>
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<span class="plain-syntax">}</span>
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<span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="function-syntax">Phrases::TypeData::is_a_say_X_phrase</span><button class="popup" onclick="togglePopup('usagePopup18')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup18">Usage of <span class="code-font"><span class="function-syntax">Phrases::TypeData::is_a_say_X_phrase</span></span>:<br/>Dash - <a href="14-ds2.html#SP14_1">§14.1</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">ph_type_data</span><span class="plain-syntax"> *</span><span class="identifier-syntax">phtd</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">phtd</span><span class="plain-syntax">-></span><span class="element-syntax">as_say</span><span class="plain-syntax">.</span><span class="element-syntax">say_phrase</span><span class="plain-syntax"> == </span><span class="constant-syntax">NOT_A_SAY_PHRASE</span><span class="plain-syntax">) </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> ((</span><span class="identifier-syntax">phtd</span><span class="plain-syntax">-></span><span class="element-syntax">no_words</span><span class="plain-syntax"> == </span><span class="constant-syntax">2</span><span class="plain-syntax">) && (</span><span class="identifier-syntax">phtd</span><span class="plain-syntax">-></span><span class="element-syntax">word_sequence</span><span class="plain-syntax">[1] < </span><span class="constant-syntax">MAX_TOKENS_PER_PHRASE</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">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">FALSE</span><span class="plain-syntax">;</span>
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<span class="plain-syntax">}</span>
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<span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="function-syntax">Phrases::TypeData::is_a_spare_say_X_phrase</span><button class="popup" onclick="togglePopup('usagePopup19')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup19">Usage of <span class="code-font"><span class="function-syntax">Phrases::TypeData::is_a_spare_say_X_phrase</span></span>:<br/>Dash - <a href="14-ds2.html#SP9_1_1">§9.1.1</a>, <a href="14-ds2.html#SP9_1_1_2">§9.1.1.2</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">ph_type_data</span><span class="plain-syntax"> *</span><span class="identifier-syntax">phtd</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">phtd</span><span class="plain-syntax">-></span><span class="element-syntax">as_say</span><span class="plain-syntax">.</span><span class="element-syntax">say_phrase</span><span class="plain-syntax"> == </span><span class="constant-syntax">NOT_A_SAY_PHRASE</span><span class="plain-syntax">) </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">;</span>
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|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> ((</span><span class="identifier-syntax">phtd</span><span class="plain-syntax">-></span><span class="element-syntax">no_words</span><span class="plain-syntax"> == </span><span class="constant-syntax">2</span><span class="plain-syntax">) && (</span><span class="identifier-syntax">phtd</span><span class="plain-syntax">-></span><span class="element-syntax">word_sequence</span><span class="plain-syntax">[1] < </span><span class="constant-syntax">MAX_TOKENS_PER_PHRASE</span><span class="plain-syntax">)) {</span>
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|
<span class="plain-syntax"> </span><span class="identifier-syntax">kind</span><span class="plain-syntax"> *</span><span class="identifier-syntax">K</span><span class="plain-syntax"> = </span><span class="identifier-syntax">phtd</span><span class="plain-syntax">-></span><span class="element-syntax">token_sequence</span><span class="plain-syntax">[0].</span><span class="element-syntax">token_kind</span><span class="plain-syntax">;</span>
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|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> ((</span><span class="identifier-syntax">K</span><span class="plain-syntax">) && (</span><span class="identifier-syntax">Kinds::Behaviour::definite</span><span class="plain-syntax">(</span><span class="identifier-syntax">K</span><span class="plain-syntax">) == </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">)) </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">FALSE</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">TRUE</span><span class="plain-syntax">;</span>
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|
<span class="plain-syntax"> }</span>
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|
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax">}</span>
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|
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|
<span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="function-syntax">Phrases::TypeData::is_the_primordial_say</span><button class="popup" onclick="togglePopup('usagePopup20')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup20">Usage of <span class="code-font"><span class="function-syntax">Phrases::TypeData::is_the_primordial_say</span></span>:<br/>Conditions and Phrases - <a href="10-cap.html#SP12_1">§12.1</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">ph_type_data</span><span class="plain-syntax"> *</span><span class="identifier-syntax">phtd</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">phtd</span><span class="plain-syntax">-></span><span class="element-syntax">as_say</span><span class="plain-syntax">.</span><span class="element-syntax">say_phrase</span><span class="plain-syntax"> == </span><span class="constant-syntax">THE_PRIMORDIAL_SAY_PHRASE</span><span class="plain-syntax">) </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">TRUE</span><span class="plain-syntax">;</span>
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|
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax">}</span>
|
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|
<span class="reserved-syntax">void</span><span class="plain-syntax"> </span><span class="function-syntax">Phrases::TypeData::get_say_data</span><button class="popup" onclick="togglePopup('usagePopup21')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup21">Usage of <span class="code-font"><span class="function-syntax">Phrases::TypeData::get_say_data</span></span>:<br/>Compile Phrases - <a href="25-cp.html#SP7_1">§7.1</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">say_details</span><span class="plain-syntax"> *</span><span class="identifier-syntax">sd</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">say_cs</span><span class="plain-syntax">, </span><span class="reserved-syntax">int</span><span class="plain-syntax"> *</span><span class="identifier-syntax">ssp_tok</span><span class="plain-syntax">, </span><span class="reserved-syntax">int</span><span class="plain-syntax"> *</span><span class="identifier-syntax">ssp_ctok</span><span class="plain-syntax">, </span><span class="reserved-syntax">int</span><span class="plain-syntax"> *</span><span class="identifier-syntax">ssp_pos</span><span class="plain-syntax">) {</span>
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|
<span class="plain-syntax"> *</span><span class="identifier-syntax">say_cs</span><span class="plain-syntax"> = </span><span class="identifier-syntax">sd</span><span class="plain-syntax">-></span><span class="element-syntax">say_control_structure</span><span class="plain-syntax">;</span>
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|
<span class="plain-syntax"> *</span><span class="identifier-syntax">ssp_tok</span><span class="plain-syntax"> = </span><span class="identifier-syntax">sd</span><span class="plain-syntax">-></span><span class="element-syntax">say_phrase_stream_token_at</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> *</span><span class="identifier-syntax">ssp_ctok</span><span class="plain-syntax"> = </span><span class="identifier-syntax">sd</span><span class="plain-syntax">-></span><span class="element-syntax">say_phrase_stream_closing_token_at</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> *</span><span class="identifier-syntax">ssp_pos</span><span class="plain-syntax"> = </span><span class="identifier-syntax">sd</span><span class="plain-syntax">-></span><span class="element-syntax">say_phrase_stream_position</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax">}</span>
|
|
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|
<span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="function-syntax">Phrases::TypeData::preface_for_say_HTML</span><button class="popup" onclick="togglePopup('usagePopup22')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup22">Usage of <span class="code-font"><span class="function-syntax">Phrases::TypeData::preface_for_say_HTML</span></span>:<br/>Describing Phrase Type Data - <a href="22-dptd.html#SP3">§3</a></span></button><span class="plain-syntax">(</span><span class="identifier-syntax">OUTPUT_STREAM</span><span class="plain-syntax">, </span><span class="reserved-syntax">say_details</span><span class="plain-syntax"> </span><span class="identifier-syntax">sd</span><span class="plain-syntax">, </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">paste_format</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">sd</span><span class="plain-syntax">.</span><span class="identifier-syntax">say_phrase</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">sd</span><span class="plain-syntax">.</span><span class="element-syntax">say_phrase</span><span class="plain-syntax"> != </span><span class="constant-syntax">THE_PRIMORDIAL_SAY_PHRASE</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">switch</span><span class="plain-syntax"> (</span><span class="identifier-syntax">paste_format</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">case</span><span class="plain-syntax"> </span><span class="identifier-syntax">PASTE_PHRASE_FORMAT:</span><span class="plain-syntax"> </span><span class="identifier-syntax">WRITE</span><span class="plain-syntax">(</span><span class="string-syntax">"["</span><span class="plain-syntax">); </span><span class="reserved-syntax">break</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">case</span><span class="plain-syntax"> </span><span class="identifier-syntax">INDEX_PHRASE_FORMAT:</span><span class="plain-syntax"> </span><span class="identifier-syntax">WRITE</span><span class="plain-syntax">(</span><span class="string-syntax">"say \"["</span><span class="plain-syntax">); </span><span class="reserved-syntax">break</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> }</span>
|
|
<span class="plain-syntax"> } </span><span class="reserved-syntax">else</span><span class="plain-syntax"> {</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">switch</span><span class="plain-syntax"> (</span><span class="identifier-syntax">paste_format</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">case</span><span class="plain-syntax"> </span><span class="identifier-syntax">PASTE_PHRASE_FORMAT:</span><span class="plain-syntax"> </span><span class="identifier-syntax">WRITE</span><span class="plain-syntax">(</span><span class="string-syntax">"say \"\""</span><span class="plain-syntax">); </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">NOT_APPLICABLE</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">case</span><span class="plain-syntax"> </span><span class="identifier-syntax">INDEX_PHRASE_FORMAT:</span><span class="plain-syntax"> </span><span class="identifier-syntax">WRITE</span><span class="plain-syntax">(</span><span class="string-syntax">"say \""</span><span class="plain-syntax">); </span><span class="reserved-syntax">break</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> }</span>
|
|
<span class="plain-syntax"> }</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">TRUE</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> }</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax">}</span>
|
|
|
|
<span class="reserved-syntax">void</span><span class="plain-syntax"> </span><span class="function-syntax">Phrases::TypeData::epilogue_for_say_HTML</span><button class="popup" onclick="togglePopup('usagePopup23')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup23">Usage of <span class="code-font"><span class="function-syntax">Phrases::TypeData::epilogue_for_say_HTML</span></span>:<br/>Describing Phrase Type Data - <a href="22-dptd.html#SP3">§3</a></span></button><span class="plain-syntax">(</span><span class="identifier-syntax">OUTPUT_STREAM</span><span class="plain-syntax">, </span><span class="reserved-syntax">say_details</span><span class="plain-syntax"> </span><span class="identifier-syntax">sd</span><span class="plain-syntax">, </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">paste_format</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">sd</span><span class="plain-syntax">.</span><span class="identifier-syntax">say_phrase</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">sd</span><span class="plain-syntax">.</span><span class="element-syntax">say_phrase</span><span class="plain-syntax"> != </span><span class="constant-syntax">THE_PRIMORDIAL_SAY_PHRASE</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">paste_format</span><span class="plain-syntax"> == </span><span class="constant-syntax">PASTE_PHRASE_FORMAT</span><span class="plain-syntax">) </span><span class="identifier-syntax">WRITE</span><span class="plain-syntax">(</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="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">paste_format</span><span class="plain-syntax"> == </span><span class="constant-syntax">INDEX_PHRASE_FORMAT</span><span class="plain-syntax">) </span><span class="identifier-syntax">WRITE</span><span class="plain-syntax">(</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="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">paste_format</span><span class="plain-syntax"> == </span><span class="constant-syntax">INDEX_PHRASE_FORMAT</span><span class="plain-syntax">) </span><span class="identifier-syntax">WRITE</span><span class="plain-syntax">(</span><span class="string-syntax">"\""</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> }</span>
|
|
<span class="plain-syntax"> }</span>
|
|
<span class="plain-syntax">}</span>
|
|
|
|
<span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="function-syntax">Phrases::TypeData::ssp_matches</span><button class="popup" onclick="togglePopup('usagePopup24')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup24">Usage of <span class="code-font"><span class="function-syntax">Phrases::TypeData::ssp_matches</span></span>:<br/>Compile Phrases - <a href="25-cp.html#SP8">§8</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">ph_type_data</span><span class="plain-syntax"> *</span><span class="identifier-syntax">phtd</span><span class="plain-syntax">, </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">ssp_tok</span><span class="plain-syntax">, </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">list_pos</span><span class="plain-syntax">,</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">wording</span><span class="plain-syntax"> *</span><span class="identifier-syntax">W</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">this_tok</span><span class="plain-syntax"> = </span><span class="identifier-syntax">phtd</span><span class="plain-syntax">-></span><span class="element-syntax">as_say</span><span class="plain-syntax">.</span><span class="element-syntax">say_phrase_stream_token_at</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">this_pos</span><span class="plain-syntax"> = </span><span class="identifier-syntax">phtd</span><span class="plain-syntax">-></span><span class="element-syntax">as_say</span><span class="plain-syntax">.</span><span class="element-syntax">say_phrase_stream_position</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">this_tok</span><span class="plain-syntax"> == -1) </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">this_pos</span><span class="plain-syntax"> != </span><span class="identifier-syntax">list_pos</span><span class="plain-syntax">) </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">compare_words</span><span class="plain-syntax">(</span><span class="identifier-syntax">ssp_tok</span><span class="plain-syntax">, </span><span class="identifier-syntax">this_tok</span><span class="plain-syntax">) == </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">) </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> *</span><span class="identifier-syntax">W</span><span class="plain-syntax"> = </span><span class="identifier-syntax">Wordings::trim_first_word</span><span class="plain-syntax">(</span><span class="identifier-syntax">phtd</span><span class="plain-syntax">-></span><span class="element-syntax">registration_text</span><span class="plain-syntax">); </span><span class="comment-syntax"> to remove the word "say"</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">TRUE</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax">}</span>
|
|
</pre>
|
|
<p class="commentary firstcommentary"><a id="SP22" class="paragraph-anchor"></a><b>§22. Inline phrases. </b>On some platforms, notably Android, <span class="extract"><span class="extract-syntax">inline</span></span> is a reserved word in some versions
|
|
of <span class="extract"><span class="extract-syntax">gcc</span></span>, so we need to be careful not to call any variables or structure members
|
|
by than name.
|
|
</p>
|
|
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|
<pre class="definitions code-font"><span class="definition-keyword">define</span> <span class="constant-syntax">NO_BLOCK_FOLLOWS</span><span class="plain-syntax"> </span><span class="constant-syntax">0</span><span class="plain-syntax"> </span><span class="comment-syntax"> this needs to be 0, to make if conditions work</span>
|
|
<span class="definition-keyword">define</span> <span class="constant-syntax">MISCELLANEOUS_BLOCK_FOLLOWS</span><span class="plain-syntax"> </span><span class="constant-syntax">1</span>
|
|
<span class="definition-keyword">define</span> <span class="constant-syntax">CONDITIONAL_BLOCK_FOLLOWS</span><span class="plain-syntax"> </span><span class="constant-syntax">2</span>
|
|
<span class="definition-keyword">define</span> <span class="constant-syntax">LOOP_BODY_BLOCK_FOLLOWS</span><span class="plain-syntax"> </span><span class="constant-syntax">3</span>
|
|
</pre>
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="reserved-syntax">inline_details</span><span class="plain-syntax"> </span><span class="function-syntax">Phrases::TypeData::new_inline_details</span><button class="popup" onclick="togglePopup('usagePopup25')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup25">Usage of <span class="code-font"><span class="function-syntax">Phrases::TypeData::new_inline_details</span></span>:<br/><a href="22-ptd.html#SP9">§9</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">void</span><span class="plain-syntax">) {</span>
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|
<span class="plain-syntax"> </span><span class="reserved-syntax">inline_details</span><span class="plain-syntax"> </span><span class="identifier-syntax">id</span><span class="plain-syntax">;</span>
|
|
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|
<span class="plain-syntax"> </span><span class="identifier-syntax">id</span><span class="plain-syntax">.</span><span class="element-syntax">invoked_inline_not_as_call</span><span class="plain-syntax"> = </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">;</span>
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|
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|
<span class="plain-syntax"> </span><span class="identifier-syntax">id</span><span class="plain-syntax">.</span><span class="element-syntax">let_phrase</span><span class="plain-syntax"> = </span><span class="constant-syntax">NOT_A_LET_PHRASE</span><span class="plain-syntax">;</span>
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|
<span class="plain-syntax"> </span><span class="identifier-syntax">id</span><span class="plain-syntax">.</span><span class="element-syntax">block_follows</span><span class="plain-syntax"> = </span><span class="constant-syntax">NO_BLOCK_FOLLOWS</span><span class="plain-syntax">;</span>
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|
<span class="plain-syntax"> </span><span class="identifier-syntax">id</span><span class="plain-syntax">.</span><span class="element-syntax">only_in_loop</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">id</span><span class="plain-syntax">.</span><span class="element-syntax">assignment_phrase</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">id</span><span class="plain-syntax">.</span><span class="element-syntax">arithmetical_operation</span><span class="plain-syntax"> = -1;</span>
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|
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|
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">id</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax">}</span>
|
|
</pre>
|
|
<p class="commentary firstcommentary"><a id="SP23" class="paragraph-anchor"></a><b>§23. </b></p>
|
|
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">no_lets_made</span><span class="plain-syntax"> = </span><span class="constant-syntax">0</span><span class="plain-syntax">;</span>
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|
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|
<span class="reserved-syntax">void</span><span class="plain-syntax"> </span><span class="function-syntax">Phrases::TypeData::make_id</span><button class="popup" onclick="togglePopup('usagePopup26')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup26">Usage of <span class="code-font"><span class="function-syntax">Phrases::TypeData::make_id</span></span>:<br/>Describing Phrase Type Data - <a href="22-dptd.html#SP17">§17</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">inline_details</span><span class="plain-syntax"> *</span><span class="identifier-syntax">id</span><span class="plain-syntax">, </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">op</span><span class="plain-syntax">, </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">assgn</span><span class="plain-syntax">, </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">let</span><span class="plain-syntax">, </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">blk</span><span class="plain-syntax">, </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">only_in</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">id</span><span class="plain-syntax">-></span><span class="element-syntax">arithmetical_operation</span><span class="plain-syntax"> = </span><span class="identifier-syntax">op</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">id</span><span class="plain-syntax">-></span><span class="element-syntax">assignment_phrase</span><span class="plain-syntax"> = </span><span class="identifier-syntax">assgn</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">let</span><span class="plain-syntax"> == </span><span class="constant-syntax">ASSIGNMENT_LET_PHRASE</span><span class="plain-syntax">) && (</span><span class="identifier-syntax">no_lets_made</span><span class="plain-syntax">++ >= </span><span class="constant-syntax">3</span><span class="plain-syntax">)) </span><span class="identifier-syntax">let</span><span class="plain-syntax"> = </span><span class="constant-syntax">NOT_A_LET_PHRASE</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">id</span><span class="plain-syntax">-></span><span class="element-syntax">let_phrase</span><span class="plain-syntax"> = </span><span class="identifier-syntax">let</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">id</span><span class="plain-syntax">-></span><span class="element-syntax">block_follows</span><span class="plain-syntax"> = </span><span class="identifier-syntax">blk</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">only_in</span><span class="plain-syntax"> == -1) </span><span class="identifier-syntax">id</span><span class="plain-syntax">-></span><span class="element-syntax">only_in_loop</span><span class="plain-syntax"> = </span><span class="identifier-syntax">L</span><span class="string-syntax">"loop"</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">else</span><span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">only_in</span><span class="plain-syntax"> > </span><span class="constant-syntax">0</span><span class="plain-syntax">) </span><span class="identifier-syntax">id</span><span class="plain-syntax">-></span><span class="element-syntax">only_in_loop</span><span class="plain-syntax"> = </span><span class="identifier-syntax">Lexer::word_text</span><span class="plain-syntax">(</span><span class="identifier-syntax">only_in</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax">}</span>
|
|
</pre>
|
|
<p class="commentary firstcommentary"><a id="SP24" class="paragraph-anchor"></a><b>§24. </b></p>
|
|
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="reserved-syntax">void</span><span class="plain-syntax"> </span><span class="function-syntax">Phrases::TypeData::log_inline_details</span><button class="popup" onclick="togglePopup('usagePopup27')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup27">Usage of <span class="code-font"><span class="function-syntax">Phrases::TypeData::log_inline_details</span></span>:<br/>Describing Phrase Type Data - <a href="22-dptd.html#SP1">§1</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">inline_details</span><span class="plain-syntax"> </span><span class="identifier-syntax">id</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">id</span><span class="plain-syntax">.</span><span class="identifier-syntax">block_follows</span><span class="plain-syntax">) </span><span class="identifier-syntax">LOG</span><span class="plain-syntax">(</span><span class="string-syntax">" block follows\n"</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">id</span><span class="plain-syntax">.</span><span class="identifier-syntax">let_phrase</span><span class="plain-syntax"> != </span><span class="constant-syntax">NOT_A_LET_PHRASE</span><span class="plain-syntax">) </span><span class="identifier-syntax">LOG</span><span class="plain-syntax">(</span><span class="string-syntax">" let phrase (%d)\n"</span><span class="plain-syntax">, </span><span class="identifier-syntax">id</span><span class="plain-syntax">.</span><span class="element-syntax">let_phrase</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">id</span><span class="plain-syntax">.</span><span class="identifier-syntax">only_in_loop</span><span class="plain-syntax">) </span><span class="identifier-syntax">LOG</span><span class="plain-syntax">(</span><span class="string-syntax">" may only be used in a %w body\n"</span><span class="plain-syntax">, </span><span class="identifier-syntax">id</span><span class="plain-syntax">.</span><span class="element-syntax">only_in_loop</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">switch</span><span class="plain-syntax"> (</span><span class="identifier-syntax">id</span><span class="plain-syntax">.</span><span class="element-syntax">invoked_inline_not_as_call</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">case</span><span class="plain-syntax"> </span><span class="identifier-syntax">TRUE:</span><span class="plain-syntax"> </span><span class="identifier-syntax">LOG</span><span class="plain-syntax">(</span><span class="string-syntax">" invoked inline\n"</span><span class="plain-syntax">); </span><span class="reserved-syntax">break</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">case</span><span class="plain-syntax"> </span><span class="identifier-syntax">FALSE:</span><span class="plain-syntax"> </span><span class="identifier-syntax">LOG</span><span class="plain-syntax">(</span><span class="string-syntax">" invoked by I6 function call\n"</span><span class="plain-syntax">); </span><span class="reserved-syntax">break</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> }</span>
|
|
<span class="plain-syntax">}</span>
|
|
</pre>
|
|
<p class="commentary firstcommentary"><a id="SP25" class="paragraph-anchor"></a><b>§25. </b></p>
|
|
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="reserved-syntax">void</span><span class="plain-syntax"> </span><span class="function-syntax">Phrases::TypeData::make_inline</span><button class="popup" onclick="togglePopup('usagePopup28')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup28">Usage of <span class="code-font"><span class="function-syntax">Phrases::TypeData::make_inline</span></span>:<br/>Phrases - <a href="22-ph.html#SP5_3">§5.3</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">ph_type_data</span><span class="plain-syntax"> *</span><span class="identifier-syntax">phtd</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">phtd</span><span class="plain-syntax">-></span><span class="identifier-syntax">as_inline</span><span class="plain-syntax">.</span><span class="element-syntax">invoked_inline_not_as_call</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">int</span><span class="plain-syntax"> </span><span class="function-syntax">Phrases::TypeData::invoked_inline</span><button class="popup" onclick="togglePopup('usagePopup29')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup29">Usage of <span class="code-font"><span class="function-syntax">Phrases::TypeData::invoked_inline</span></span>:<br/>Construction Sequence - <a href="22-cs.html#SP11_7">§11.7</a><br/>To Phrases - <a href="22-tp.html#SP7">§7</a><br/>Compile Invocations - <a href="25-ci.html#SP2_1_1_1">§2.1.1.1</a>, <a href="25-ci.html#SP3_1">§3.1</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">phrase</span><span class="plain-syntax"> *</span><span class="identifier-syntax">ph</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">ph</span><span class="plain-syntax">-></span><span class="element-syntax">type_data</span><span class="plain-syntax">.</span><span class="element-syntax">as_inline</span><span class="plain-syntax">.</span><span class="element-syntax">invoked_inline_not_as_call</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax">}</span>
|
|
</pre>
|
|
<p class="commentary firstcommentary"><a id="SP26" class="paragraph-anchor"></a><b>§26. </b></p>
|
|
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="function-syntax">Phrases::TypeData::is_a_let_assignment</span><button class="popup" onclick="togglePopup('usagePopup30')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup30">Usage of <span class="code-font"><span class="function-syntax">Phrases::TypeData::is_a_let_assignment</span></span>:<br/>Dash - <a href="14-ds2.html#SP10_9_1_1_3_1">§10.9.1.1.3.1</a>, <a href="14-ds2.html#SP10_9_1_1_3_1_1">§10.9.1.1.3.1.1</a>, <a href="14-ds2.html#SP13">§13</a>, <a href="14-ds2.html#SP14_1">§14.1</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">phrase</span><span class="plain-syntax"> *</span><span class="identifier-syntax">ph</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">ph</span><span class="plain-syntax">-></span><span class="element-syntax">type_data</span><span class="plain-syntax">.</span><span class="element-syntax">as_inline</span><span class="plain-syntax">.</span><span class="element-syntax">let_phrase</span><span class="plain-syntax"> == </span><span class="constant-syntax">ASSIGNMENT_LET_PHRASE</span><span class="plain-syntax">) </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">TRUE</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax">}</span>
|
|
|
|
<span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="function-syntax">Phrases::TypeData::is_a_let_equation</span><button class="popup" onclick="togglePopup('usagePopup31')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup31">Usage of <span class="code-font"><span class="function-syntax">Phrases::TypeData::is_a_let_equation</span></span>:<br/>Parse Invocations - <a href="25-pi.html#SP5_2">§5.2</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">phrase</span><span class="plain-syntax"> *</span><span class="identifier-syntax">ph</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">ph</span><span class="plain-syntax">-></span><span class="element-syntax">type_data</span><span class="plain-syntax">.</span><span class="element-syntax">as_inline</span><span class="plain-syntax">.</span><span class="element-syntax">let_phrase</span><span class="plain-syntax"> == </span><span class="constant-syntax">EQUATION_LET_PHRASE</span><span class="plain-syntax">) </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">TRUE</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax">}</span>
|
|
|
|
<span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="function-syntax">Phrases::TypeData::arithmetic_operation</span><button class="popup" onclick="togglePopup('usagePopup32')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup32">Usage of <span class="code-font"><span class="function-syntax">Phrases::TypeData::arithmetic_operation</span></span>:<br/>Dash - <a href="14-ds2.html#SP10_9_1_1_2">§10.9.1.1.2</a>, <a href="14-ds2.html#SP10_9_1_1_2_2">§10.9.1.1.2.2</a><br/>Equations - <a href="20-eq.html#SP39_3">§39.3</a><br/>Construction Sequence - <a href="22-cs.html#SP11_6">§11.6</a><br/>Compile Invocations Inline - <a href="25-cii.html#SP3_5_7">§3.5.7</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">phrase</span><span class="plain-syntax"> *</span><span class="identifier-syntax">ph</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">ph</span><span class="plain-syntax">-></span><span class="element-syntax">type_data</span><span class="plain-syntax">.</span><span class="element-syntax">as_inline</span><span class="plain-syntax">.</span><span class="element-syntax">arithmetical_operation</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">Phrases::TypeData::is_arithmetic_phrase</span><button class="popup" onclick="togglePopup('usagePopup33')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup33">Usage of <span class="code-font"><span class="function-syntax">Phrases::TypeData::is_arithmetic_phrase</span></span>:<br/>Dash - <a href="14-ds2.html#SP10_9_1_1_2">§10.9.1.1.2</a>, <a href="14-ds2.html#SP10_9_1_1_3">§10.9.1.1.3</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">phrase</span><span class="plain-syntax"> *</span><span class="identifier-syntax">ph</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> ((</span><a href="22-ptd.html#SP26" class="function-link"><span class="function-syntax">Phrases::TypeData::arithmetic_operation</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">ph</span><span class="plain-syntax">) >= </span><span class="constant-syntax">0</span><span class="plain-syntax">) &&</span>
|
|
<span class="plain-syntax"> (</span><a href="22-ptd.html#SP26" class="function-link"><span class="function-syntax">Phrases::TypeData::arithmetic_operation</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">ph</span><span class="plain-syntax">) < </span><span class="identifier-syntax">NO_OPERATIONS</span><span class="plain-syntax">)) </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">TRUE</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax">}</span>
|
|
|
|
<span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="function-syntax">Phrases::TypeData::is_assignment_phrase</span><button class="popup" onclick="togglePopup('usagePopup34')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup34">Usage of <span class="code-font"><span class="function-syntax">Phrases::TypeData::is_assignment_phrase</span></span>:<br/>Dash - <a href="14-ds2.html#SP10_9_1_1_5">§10.9.1.1.5</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">phrase</span><span class="plain-syntax"> *</span><span class="identifier-syntax">ph</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">ph</span><span class="plain-syntax">-></span><span class="element-syntax">type_data</span><span class="plain-syntax">.</span><span class="element-syntax">as_inline</span><span class="plain-syntax">.</span><span class="element-syntax">assignment_phrase</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax">}</span>
|
|
|
|
<span class="identifier-syntax">wchar_t</span><span class="plain-syntax"> *</span><span class="function-syntax">Phrases::TypeData::only_in</span><button class="popup" onclick="togglePopup('usagePopup35')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup35">Usage of <span class="code-font"><span class="function-syntax">Phrases::TypeData::only_in</span></span>:<br/>Dash - <a href="14-ds2.html#SP10_9_1_1_9">§10.9.1.1.9</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">phrase</span><span class="plain-syntax"> *</span><span class="identifier-syntax">ph</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">ph</span><span class="plain-syntax">) </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">ph</span><span class="plain-syntax">-></span><span class="element-syntax">type_data</span><span class="plain-syntax">.</span><span class="identifier-syntax">as_inline</span><span class="plain-syntax">.</span><span class="element-syntax">only_in_loop</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax">}</span>
|
|
|
|
<span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="function-syntax">Phrases::TypeData::block_follows</span><button class="popup" onclick="togglePopup('usagePopup36')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup36">Usage of <span class="code-font"><span class="function-syntax">Phrases::TypeData::block_follows</span></span>:<br/>Compile Invocations Inline - <a href="25-cii.html#SP1">§1</a>, <a href="25-cii.html#SP1_2_1">§1.2.1</a>, <a href="25-cii.html#SP3_5_1_1">§3.5.1.1</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">phrase</span><span class="plain-syntax"> *</span><span class="identifier-syntax">ph</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">ph</span><span class="plain-syntax">-></span><span class="element-syntax">type_data</span><span class="plain-syntax">.</span><span class="element-syntax">as_inline</span><span class="plain-syntax">.</span><span class="element-syntax">block_follows</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax">}</span>
|
|
</pre>
|
|
<p class="commentary firstcommentary"><a id="SP27" class="paragraph-anchor"></a><b>§27. Return value polymorphism. </b>Inform has two sorts of polymorphism — that is, there are two ways in which
|
|
the kinds of phrases can vary. One is by means of kind variables, the other
|
|
is for arithmetic operations such as "plus" or "times": where the range of
|
|
kinds which can go in is quite large, and the kind which comes out is then
|
|
determined on dimensional grounds. (A number times a length is another
|
|
length, but a number plus a length is an error, and so on.)
|
|
</p>
|
|
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="function-syntax">Phrases::TypeData::return_decided_dimensionally</span><button class="popup" onclick="togglePopup('usagePopup37')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup37">Usage of <span class="code-font"><span class="function-syntax">Phrases::TypeData::return_decided_dimensionally</span></span>:<br/>RValues - <a href="14-rv.html#SP22_7">§22.7</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">ph_type_data</span><span class="plain-syntax"> *</span><span class="identifier-syntax">phtd</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">phtd</span><span class="plain-syntax">-></span><span class="element-syntax">manner_of_return</span><span class="plain-syntax"> == </span><span class="constant-syntax">DECIDES_VALUE_MOR</span><span class="plain-syntax">) &&</span>
|
|
<span class="plain-syntax"> (</span><span class="identifier-syntax">phtd</span><span class="plain-syntax">-></span><span class="element-syntax">as_inline</span><span class="plain-syntax">.</span><span class="element-syntax">arithmetical_operation</span><span class="plain-syntax"> >= </span><span class="constant-syntax">0</span><span class="plain-syntax">)) </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">TRUE</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax">}</span>
|
|
</pre>
|
|
<p class="commentary firstcommentary"><a id="SP28" class="paragraph-anchor"></a><b>§28. Tweaking phrase ordering. </b>Phrases marked for use only within a particular control structure, such as
|
|
"otherwise" within "if", automatically precede all other phrases. The idea
|
|
is that these are keywords whose effect is so powerful that we don't want
|
|
any chance of ambiguities arising due to unwise phrase definitions in the
|
|
source text.
|
|
</p>
|
|
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="function-syntax">Phrases::TypeData::inline_type_data_comparison</span><button class="popup" onclick="togglePopup('usagePopup38')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup38">Usage of <span class="code-font"><span class="function-syntax">Phrases::TypeData::inline_type_data_comparison</span></span>:<br/><a href="22-ptd.html#SP20_1">§20.1</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">ph_type_data</span><span class="plain-syntax"> *</span><span class="identifier-syntax">phtd1</span><span class="plain-syntax">, </span><span class="reserved-syntax">ph_type_data</span><span class="plain-syntax"> *</span><span class="identifier-syntax">phtd2</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">phtd1</span><span class="plain-syntax">-></span><span class="element-syntax">as_inline</span><span class="plain-syntax">.</span><span class="element-syntax">only_in_loop</span><span class="plain-syntax">) && (</span><span class="identifier-syntax">phtd2</span><span class="plain-syntax">-></span><span class="element-syntax">as_inline</span><span class="plain-syntax">.</span><span class="element-syntax">only_in_loop</span><span class="plain-syntax"> == </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">))</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="constant-syntax">BEFORE_PH</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">phtd2</span><span class="plain-syntax">-></span><span class="element-syntax">as_inline</span><span class="plain-syntax">.</span><span class="element-syntax">only_in_loop</span><span class="plain-syntax">) && (</span><span class="identifier-syntax">phtd1</span><span class="plain-syntax">-></span><span class="element-syntax">as_inline</span><span class="plain-syntax">.</span><span class="element-syntax">only_in_loop</span><span class="plain-syntax"> == </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">))</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="constant-syntax">AFTER_PH</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="constant-syntax">EQUAL_PH</span><span class="plain-syntax">;</span>
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<span class="plain-syntax">}</span>
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</pre>
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