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<title>1/pc</title>
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<!--Weave of '1/ut' generated by 7-->
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<ul class="crumbs"><li><a href="../webs.html">★</a></li><li><a href="index.html">problems-test</a></li><li><a href="index.html#1">Chapter 1: Everything</a></li><li><b>Unit Tests</b></li></ul><p class="purpose">A selection of tests for, or demonstrations of, problems features.</p>
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<ul class="toc"><li><a href="#SP1">§1. </a></li><li><a href="#SP2">§2. Syntax tree</a></li></ul><hr class="tocbar">
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<p class="inwebparagraph"><a id="SP1"></a><b>§1. </b></p>
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<pre class="display">
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<span class="plain"><</span><span class="identifier">dividing</span><span class="plain">-</span><span class="identifier">sentence</span><span class="plain">> ::=</span>
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<span class="identifier">chapter</span><span class="plain"> ... | ==> 1</span>
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<span class="identifier">section</span><span class="plain"> ... ==> 2</span>
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<span class="plain"><</span><span class="identifier">structural</span><span class="plain">-</span><span class="identifier">sentence</span><span class="plain">> ::=</span>
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<span class="plain">... ==> </span><span class="constant">TRUE</span><span class="plain">; </span><span class="reserved">return</span><span class="plain"> </span><span class="constant">FAIL_NONTERMINAL</span><span class="plain">;</span>
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<span class="plain"><</span><span class="identifier">language</span><span class="plain">-</span><span class="identifier">modifying</span><span class="plain">-</span><span class="identifier">sentence</span><span class="plain">> ::=</span>
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<span class="plain">... ==> </span><span class="constant">TRUE</span><span class="plain">; </span><span class="reserved">return</span><span class="plain"> </span><span class="constant">FAIL_NONTERMINAL</span><span class="plain">;</span>
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<span class="plain"><</span><span class="identifier">scan</span><span class="plain">-</span><span class="identifier">individual</span><span class="plain">-</span><span class="identifier">phrase</span><span class="plain">> ::=</span>
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<span class="plain">... </span><span class="identifier">banana</span><span class="plain"> ... ==> </span><<span class="cwebmacro">Issue PM_UnexpectedFruit problem</span> <span class="cwebmacronumber">1.1</span>><span class="plain">;</span>
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</pre>
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<p class="inwebparagraph"></p>
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<p class="inwebparagraph"><a id="SP1_1"></a><b>§1.1. </b><code class="display">
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<<span class="cwebmacrodefn">Issue PM_UnexpectedFruit problem</span> <span class="cwebmacronumber">1.1</span>> =
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</code></p>
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<pre class="displaydefn">
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<span class="functiontext">Problems::quote_wording</span><span class="plain">(1, </span><span class="identifier">W</span><span class="plain">);</span>
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<span class="functiontext">Problems::Issue::handmade_problem</span><span class="plain">(</span><span class="identifier">_p_</span><span class="plain">(</span><span class="identifier">PM_UnexpectedFruit</span><span class="plain">));</span>
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<span class="functiontext">Problems::issue_problem_segment</span><span class="plain">(</span>
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<span class="string">"The sentence '%1' contained an unexpected fruit item, and now supper "</span>
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<span class="string">"will be ruined."</span><span class="plain">);</span>
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<span class="functiontext">Problems::issue_problem_end</span><span class="plain">();</span>
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</pre>
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<p class="inwebparagraph"></p>
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<p class="endnote">This code is used in <a href="#SP1">§1</a>.</p>
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<p class="inwebparagraph"><a id="SP2"></a><b>§2. Syntax tree. </b></p>
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<pre class="display">
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<span class="reserved">void</span><span class="plain"> </span><span class="functiontext">Unit::test_problems</span><span class="plain">(</span><span class="reserved">text_stream</span><span class="plain"> *</span><span class="identifier">arg</span><span class="plain">) {</span>
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<span class="reserved">filename</span><span class="plain"> *</span><span class="identifier">F</span><span class="plain"> = </span><span class="functiontext">Filenames::from_text</span><span class="plain">(</span><span class="identifier">arg</span><span class="plain">);</span>
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<span class="constant">feed_t</span><span class="plain"> </span><span class="identifier">FD</span><span class="plain"> = </span><span class="functiontext">Feeds::begin</span><span class="plain">();</span>
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<span class="reserved">source_file</span><span class="plain"> *</span><span class="identifier">sf</span><span class="plain"> = </span><span class="functiontext">TextFromFiles::feed_into_lexer</span><span class="plain">(</span><span class="identifier">F</span><span class="plain">, </span><span class="constant">NULL_GENERAL_POINTER</span><span class="plain">);</span>
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<span class="reserved">wording</span><span class="plain"> </span><span class="identifier">W</span><span class="plain"> = </span><span class="functiontext">Feeds::end</span><span class="plain">(</span><span class="identifier">FD</span><span class="plain">);</span>
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<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">sf</span><span class="plain"> == </span><span class="identifier">NULL</span><span class="plain">) { </span><span class="identifier">PRINT</span><span class="plain">(</span><span class="string">"File has failed to open\</span><span class="plain">n</span><span class="string">"</span><span class="plain">); </span><span class="reserved">return</span><span class="plain">; }</span>
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<span class="functiontext">ParseTree::plant_parse_tree</span><span class="plain">();</span>
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<span class="identifier">PRINT</span><span class="plain">(</span><span class="string">"Read %d words\</span><span class="plain">n</span><span class="string">"</span><span class="plain">, </span><span class="functiontext">Wordings::length</span><span class="plain">(</span><span class="identifier">W</span><span class="plain">));</span>
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<span class="functiontext">Sentences::break</span><span class="plain">(</span><span class="identifier">W</span><span class="plain">, </span><span class="identifier">NULL</span><span class="plain">);</span>
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<span class="functiontext">ParseTree::traverse</span><span class="plain">(</span><span class="functiontext">Unit::scan_tree</span><span class="plain">);</span>
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<span class="plain">}</span>
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<span class="reserved">void</span><span class="plain"> </span><span class="functiontext">Unit::scan_tree</span><span class="plain">(</span><span class="reserved">parse_node</span><span class="plain"> *</span><span class="identifier">p</span><span class="plain">) {</span>
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<span class="reserved">if</span><span class="plain"> (</span><span class="functiontext">ParseTree::get_type</span><span class="plain">(</span><span class="identifier">p</span><span class="plain">) == </span><span class="constant">SENTENCE_NT</span><span class="plain">) {</span>
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<span class="reserved">wording</span><span class="plain"> </span><span class="identifier">W</span><span class="plain"> = </span><span class="functiontext">ParseTree::get_text</span><span class="plain">(</span><span class="identifier">p</span><span class="plain">);</span>
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<span class="plain"><</span><span class="identifier">scan</span><span class="plain">-</span><span class="identifier">individual</span><span class="plain">-</span><span class="identifier">phrase</span><span class="plain">>(</span><span class="identifier">W</span><span class="plain">);</span>
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<span class="plain">}</span>
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<span class="plain">}</span>
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</pre>
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<p class="inwebparagraph"></p>
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<p class="endnote">The function Unit::test_problems is used in 1/pc (<a href="1-pc.html#SP1">§1</a>).</p>
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<p class="endnote">The function Unit::scan_tree appears nowhere else.</p>
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<hr class="tocbar">
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<ul class="toc"><li><a href="1-pc.html">Back to 'Program Control'</a></li><li><i>(This section ends Chapter 1: Everything.)</i></li></ul><hr class="tocbar">
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<!--End of weave-->
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