improved indentation and whitespace for markdown code blocks
All code blocks in markdown have been intended by at least 4 spaces. We add `--tab-stop=8` to all `pandoc(1)` executions in order to set a better tab stop indentation, especially for tab intended code blocks. Changed `bin/pandoc-wrapper.sh` VERSION from "1.5.3 2024-03-26" to "1.6 2024-03-31". Fixed `1991/brnstnd/sorta.README.md` so that the sorta code is code blocks. Removed unneeded paragraph group in copyright in `inc/footer.default.html`. Fixed excess whitespace after list Author on entry `index.html` page. Changed `bin/output-index-author.sh` VERSION from "1.5.2 2024-03-26" to "1.6 2024-03-31". Performed `make www` to perform the above and test under macOS. TODO: Fix the problem of the initial line of code being extra intended. TODO: Fix excess whitespace around code that is inline.
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@@ -132,8 +132,7 @@
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<h2 id="author"><a name="author"></a>Author:</h2>
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<ul>
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<li>Name: <a href="../../authors.html#David_Van_Brackle">David Van Brackle</a><br>
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Location: <a href="../../location.html#ZZ">ZZ</a> - <em>Unknown location</em>
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<br><br></li>
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Location: <a href="../../location.html#ZZ">ZZ</a> - <em>Unknown location</em></li>
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</ul>
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<!-- END: next line ends content generated by: bin/output-index-author.sh -->
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@@ -142,26 +141,26 @@ Location: <a href="../../location.html#ZZ">ZZ</a> - <em>Unknown location</em>
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<!-- START: this line starts content for HTML phase 21 by: bin/pandoc-wrapper.sh via bin/md2html.sh -->
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<h2 id="to-build">To build:</h2>
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<div class="sourceCode" id="cb1"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb1-1"><a href="#cb1-1" aria-hidden="true" tabindex="-1"></a><span class="fu">make</span> all</span></code></pre></div>
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<div class="sourceCode" id="cb1"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb1-1"><a href="#cb1-1" aria-hidden="true" tabindex="-1"></a> <span class="fu">make</span> all</span></code></pre></div>
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<h3 id="bugs-and-misfeatures">Bugs and (Mis)features:</h3>
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<p>The current status of this entry is:</p>
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<pre><code>STATUS: INABIAF - please **DO NOT** fix</code></pre>
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<pre><code> STATUS: INABIAF - please **DO NOT** fix</code></pre>
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<p>For more detailed information see <a href="../../bugs.html#1993_vanb">1993 vanb bugs</a>.</p>
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<h2 id="to-use">To use:</h2>
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<div class="sourceCode" id="cb3"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb3-1"><a href="#cb3-1" aria-hidden="true" tabindex="-1"></a><span class="ex">./vanb</span> <span class="st">'exp'</span></span></code></pre></div>
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<div class="sourceCode" id="cb3"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb3-1"><a href="#cb3-1" aria-hidden="true" tabindex="-1"></a> <span class="ex">./vanb</span> <span class="st">'exp'</span></span></code></pre></div>
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<p>where <code>exp</code> is an octal expression. See below for how it can also have
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hexadecimal and decimal numbers.</p>
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<h2 id="try">Try:</h2>
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<div class="sourceCode" id="cb4"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb4-1"><a href="#cb4-1" aria-hidden="true" tabindex="-1"></a><span class="ex">./try.sh</span></span></code></pre></div>
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<div class="sourceCode" id="cb4"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb4-1"><a href="#cb4-1" aria-hidden="true" tabindex="-1"></a> <span class="ex">./try.sh</span></span></code></pre></div>
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<p>What happens if you use something other than valid digits?</p>
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<h2 id="judges-remarks">Judges’ remarks:</h2>
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<p>The octal expression may contain:</p>
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<pre><code>unary operators: +, -
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binary operators +, -, *, /, %
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hex numbers: x or X followed by hex digits
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decimal numbers: d or D followed by decimal digits
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octal numbers: octal digits
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grouping: ()</code></pre>
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<pre><code> unary operators: +, -
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binary operators +, -, *, /, %
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hex numbers: x or X followed by hex digits
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decimal numbers: d or D followed by decimal digits
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octal numbers: octal digits
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grouping: ()</code></pre>
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<p>No spaces are allowed in the expression. To avoid shell expansion,
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one should surround the expression in single quotes.</p>
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<p>It is a good thing that this program consists of only one
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@@ -192,96 +191,96 @@ time, to make the program harder to understand.</p></li>
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for all of its recursion. <code>O2</code> is a state variable, telling <code>main()</code>
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what grammar non-terminal to parse. <code>**O7</code> is the next character.
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<code>O3</code> is an intermediate result. Whenever you see a construct like:</p>
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<pre><code>!(expression with O2)?</code></pre>
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<pre><code> !(expression with O2)?</code></pre>
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<p>it’s decrementing and testing <code>O2</code> to see what state it’s in. Comparisons
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involving <code>**O7</code> and octal constants are looking for certain characters.</p>
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<p>Here’s the grammar (<code>'e'</code> denotes the empty string) :</p>
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<pre><code><E> ::= <T><E'>
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<E'> ::= +<T><E'> | -<T><E'> | e
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<T> ::= <F><T'>
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<T'> ::= *<F><T'> | /<F><T'> | %<F><T'> | e
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<F> ::= +<F> | -<F> | (<E><C> | d<D> | D<D> | x<X> | X<X> | <O>
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<C> ::= )
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<D> ::= [0-9]<D> | e
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<X> ::= [0-9]<X> | [A-F]<X> | [a-f]<X> | e
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<O> ::= [0-7]<O> | e</code></pre>
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<pre><code> <E> ::= <T><E'>
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<E'> ::= +<T><E'> | -<T><E'> | e
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<T> ::= <F><T'>
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<T'> ::= *<F><T'> | /<F><T'> | %<F><T'> | e
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<F> ::= +<F> | -<F> | (<E><C> | d<D> | D<D> | x<X> | X<X> | <O>
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<C> ::= )
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<D> ::= [0-9]<D> | e
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<X> ::= [0-9]<X> | [A-F]<X> | [a-f]<X> | e
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<O> ::= [0-7]<O> | e</code></pre>
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<p>Here’s how the grammar nonterminals map to octal state numbers:</p>
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<pre><code><E> is 012
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<E'> is 011
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<T> is 010
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<T'> is 07
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<F> is 06
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<C> is 013
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<D> is 04
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<X> is 05
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<O> is 03</code></pre>
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<pre><code> <E> is 012
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<E'> is 011
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<T> is 010
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<T'> is 07
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<F> is 06
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<C> is 013
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<D> is 04
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<X> is 05
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<O> is 03</code></pre>
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<p>Here’s a version of the program before it got formatted into the VIII,
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augmented with comments showing where each state begins. <code>N1</code> and <code>N2</code> are
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notes:</p>
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<div class="sourceCode" id="cb9"><pre class="sourceCode c"><code class="sourceCode c"><span id="cb9-1"><a href="#cb9-1" aria-hidden="true" tabindex="-1"></a><span class="pp">#define O5 main</span></span>
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<span id="cb9-2"><a href="#cb9-2" aria-hidden="true" tabindex="-1"></a>O5<span class="op">(</span>O2<span class="op">,</span>O7<span class="op">,</span>O3<span class="op">)</span><span class="dt">char</span><span class="op">**</span>O7<span class="op">;</span></span>
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<span id="cb9-3"><a href="#cb9-3" aria-hidden="true" tabindex="-1"></a><span class="op">{</span></span>
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<span id="cb9-4"><a href="#cb9-4" aria-hidden="true" tabindex="-1"></a> <span class="cf">return</span></span>
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<span id="cb9-5"><a href="#cb9-5" aria-hidden="true" tabindex="-1"></a><span class="co">/* N1 */</span> <span class="op">!(</span>O2<span class="op">+=~</span><span class="bn">01</span><span class="op">+</span><span class="bn">01</span><span class="op">)</span> <span class="op">?</span>\</span>
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<span id="cb9-6"><a href="#cb9-6" aria-hidden="true" tabindex="-1"></a> <span class="bn">00</span><span class="op">:</span></span>
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<span id="cb9-7"><a href="#cb9-7" aria-hidden="true" tabindex="-1"></a><span class="co">/* N2 */</span> <span class="op">!(</span>O2<span class="op">-=</span><span class="bn">02</span><span class="op">></span><span class="bn">01</span><span class="op">)</span> <span class="op">?</span>\</span>
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<span id="cb9-8"><a href="#cb9-8" aria-hidden="true" tabindex="-1"></a> printf<span class="op">(</span><span class="st">"</span><span class="sc">\045</span><span class="er">\1</span><span class="st">57</span><span class="sc">\012</span><span class="st">"</span><span class="op">,</span>O5<span class="op">(</span><span class="bn">012</span><span class="op">,</span>O7<span class="op">+</span><span class="bn">01</span><span class="op">,</span><span class="bn">00</span><span class="op">)):</span></span>
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||||
<span id="cb9-9"><a href="#cb9-9" aria-hidden="true" tabindex="-1"></a><span class="co">/* O */</span> <span class="op">!(</span>O2<span class="op">-=</span><span class="bn">02</span><span class="op">>></span><span class="bn">01</span><span class="op">)</span> <span class="op">?</span>\</span>
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<span id="cb9-10"><a href="#cb9-10" aria-hidden="true" tabindex="-1"></a> <span class="op">(**</span>O7<span class="op"><=</span><span class="bn">067</span> <span class="op">&&</span> <span class="op">**</span>O7<span class="op">></span><span class="bn">057</span> <span class="op">?</span> O5<span class="op">(</span><span class="bn">03</span><span class="op">,</span>O7<span class="op">,*(*</span>O7<span class="op">)++-</span><span class="bn">060</span><span class="op">+</span><span class="bn">010</span><span class="op">*</span>O3<span class="op">):</span>O3<span class="op">):</span></span>
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||||
<span id="cb9-11"><a href="#cb9-11" aria-hidden="true" tabindex="-1"></a><span class="co">/* D */</span> <span class="op">!(</span>O2<span class="op">-=-</span>O3<span class="op">-~</span>O3<span class="op">)</span> <span class="op">?</span>\</span>
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||||
<span id="cb9-12"><a href="#cb9-12" aria-hidden="true" tabindex="-1"></a> <span class="op">(</span><span class="bn">072</span><span class="op">>**</span>O7 <span class="op">&&</span> <span class="bn">060</span><span class="op"><=**</span>O7 <span class="op">?</span> O5<span class="op">(</span><span class="bn">04</span><span class="op">,</span>O7<span class="op">,</span><span class="bn">012</span><span class="op">*</span>O3<span class="op">-</span><span class="bn">060</span><span class="op">+*(*</span>O7<span class="op">)++):</span>O3<span class="op">):</span></span>
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||||
<span id="cb9-13"><a href="#cb9-13" aria-hidden="true" tabindex="-1"></a><span class="co">/* X */</span> <span class="op">!(</span>O2<span class="op">-=!</span>O3<span class="op">+!!</span>O3<span class="op">)</span> <span class="op">?</span>\</span>
|
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<span id="cb9-14"><a href="#cb9-14" aria-hidden="true" tabindex="-1"></a> <span class="op">(**</span>O7<span class="op">></span><span class="bn">057</span> <span class="op">&&</span> <span class="op">**</span>O7<span class="op"><=</span><span class="bn">071</span> <span class="op">?</span> O5<span class="op">(</span><span class="bn">05</span><span class="op">,</span>O7<span class="op">,*(*</span>O7<span class="op">)+++</span>O3<span class="op">*</span><span class="bn">020</span><span class="op">-</span><span class="bn">060</span><span class="op">):</span></span>
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<span id="cb9-15"><a href="#cb9-15" aria-hidden="true" tabindex="-1"></a> <span class="op">**</span>O7<span class="op"><=</span><span class="bn">0106</span> <span class="op">&&</span> <span class="bn">0101</span><span class="op"><=**</span>O7 <span class="op">?</span> O5<span class="op">(</span><span class="bn">05</span><span class="op">,</span>O7<span class="op">,</span><span class="bn">020</span><span class="op">*</span>O3<span class="op">+*(*</span>O7<span class="op">)++-</span><span class="bn">067</span><span class="op">):</span></span>
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||||
<span id="cb9-16"><a href="#cb9-16" aria-hidden="true" tabindex="-1"></a> <span class="bn">0140</span><span class="op"><**</span>O7 <span class="op">&&</span> <span class="op">**</span>O7<span class="op"><</span><span class="bn">0147</span> <span class="op">?</span> O5<span class="op">(</span><span class="bn">05</span><span class="op">,</span>O7<span class="op">,-</span><span class="bn">0127</span><span class="op">+*(*</span>O7<span class="op">)+++</span><span class="bn">020</span><span class="op">*</span>O3<span class="op">):</span>O3<span class="op">):</span></span>
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<span id="cb9-17"><a href="#cb9-17" aria-hidden="true" tabindex="-1"></a><span class="co">/* F */</span> <span class="op">!(</span>O2<span class="op">-=</span><span class="bn">02</span><span class="op">-</span><span class="bn">01</span><span class="op">)</span> <span class="op">?</span>\</span>
|
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<span id="cb9-18"><a href="#cb9-18" aria-hidden="true" tabindex="-1"></a> <span class="op">(**</span>O7<span class="op">==</span><span class="bn">050</span> <span class="op">?</span> <span class="bn">050</span><span class="op">**++*</span>O7<span class="op">,</span>O5<span class="op">(</span><span class="bn">013</span><span class="op">,</span>O7<span class="op">,</span>O5<span class="op">(</span><span class="bn">012</span><span class="op">,</span>O7<span class="op">,</span><span class="bn">00</span><span class="op">)):</span></span>
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<span id="cb9-19"><a href="#cb9-19" aria-hidden="true" tabindex="-1"></a> <span class="op">**</span>O7<span class="op"><</span><span class="bn">056</span> <span class="op">&&</span> <span class="bn">054</span><span class="op"><**</span>O7 <span class="op">?</span> <span class="bn">055</span><span class="op">**++*</span>O7<span class="op">,-</span>O5<span class="op">(</span><span class="bn">06</span><span class="op">,</span>O7<span class="op">,</span><span class="bn">00</span><span class="op">):</span></span>
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||||
<span id="cb9-20"><a href="#cb9-20" aria-hidden="true" tabindex="-1"></a> <span class="bn">054</span><span class="op">>**</span>O7 <span class="op">&&</span> <span class="bn">052</span><span class="op"><**</span>O7 <span class="op">?</span> <span class="bn">050</span><span class="op">**(*</span>O7<span class="op">)++,</span>O5<span class="op">(</span><span class="bn">06</span><span class="op">,</span>O7<span class="op">,</span><span class="bn">00</span><span class="op">):</span></span>
|
||||
<span id="cb9-21"><a href="#cb9-21" aria-hidden="true" tabindex="-1"></a> <span class="op">!(**</span>O7<span class="op">^</span><span class="bn">0170</span><span class="op">)||!(</span><span class="bn">0130</span><span class="op">^**</span>O7<span class="op">)</span> <span class="op">?</span> <span class="op">*++*</span>O7<span class="op">,</span>O5<span class="op">(</span><span class="bn">05</span><span class="op">,</span>O7<span class="op">,</span><span class="bn">00</span><span class="op">):</span></span>
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<span id="cb9-22"><a href="#cb9-22" aria-hidden="true" tabindex="-1"></a> <span class="op">**</span>O7<span class="op">==</span><span class="bn">0144</span><span class="op">||**</span>O7<span class="op">==</span><span class="bn">0104</span> <span class="op">?</span> <span class="op">++*</span>O7<span class="op">,</span>O5<span class="op">(</span><span class="bn">04</span><span class="op">,</span>O7<span class="op">,</span><span class="bn">00</span><span class="op">):</span>O5<span class="op">(</span><span class="bn">03</span><span class="op">,</span>O7<span class="op">,</span><span class="bn">00</span><span class="op">)):</span></span>
|
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<span id="cb9-23"><a href="#cb9-23" aria-hidden="true" tabindex="-1"></a><span class="co">/* T' */</span> <span class="op">!--</span>O2 <span class="op">?</span>\</span>
|
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<span id="cb9-24"><a href="#cb9-24" aria-hidden="true" tabindex="-1"></a> <span class="op">(**</span>O7<span class="op">==</span><span class="bn">052</span> <span class="op">?</span> O5<span class="op">(</span><span class="bn">07</span><span class="op">,</span>O7<span class="op">,</span>O3<span class="op">*(*++*</span>O7<span class="op">,</span>O5<span class="op">(</span><span class="bn">06</span><span class="op">,</span>O7<span class="op">,</span><span class="bn">00</span><span class="op">))):</span></span>
|
||||
<span id="cb9-25"><a href="#cb9-25" aria-hidden="true" tabindex="-1"></a> <span class="op">!(</span><span class="bn">045</span><span class="op">-**</span>O7<span class="op">)</span> <span class="op">?</span> O5<span class="op">(</span><span class="bn">07</span><span class="op">,</span>O7<span class="op">,</span>O3<span class="op">%(</span><span class="bn">03</span><span class="op">+(*</span>O7<span class="op">)++,</span>O5<span class="op">(</span><span class="bn">06</span><span class="op">,</span>O7<span class="op">,</span><span class="bn">00</span><span class="op">))):</span></span>
|
||||
<span id="cb9-26"><a href="#cb9-26" aria-hidden="true" tabindex="-1"></a> <span class="op">!(**</span>O7<span class="op">^</span><span class="bn">057</span><span class="op">)</span> <span class="op">?</span> O5<span class="op">(</span><span class="bn">07</span><span class="op">,</span>O7<span class="op">,</span>O3<span class="op">/(</span><span class="bn">03</span><span class="op">-*++*</span>O7<span class="op">,</span>O5<span class="op">(</span><span class="bn">06</span><span class="op">,</span>O7<span class="op">,</span><span class="bn">00</span><span class="op">))):</span>O3<span class="op">):</span></span>
|
||||
<span id="cb9-27"><a href="#cb9-27" aria-hidden="true" tabindex="-1"></a><span class="co">/* T */</span> <span class="op">!(</span>O2<span class="op">+=</span><span class="bn">01</span><span class="op">-</span><span class="bn">02</span><span class="op">)</span> <span class="op">?</span>\</span>
|
||||
<span id="cb9-28"><a href="#cb9-28" aria-hidden="true" tabindex="-1"></a> O5<span class="op">(</span><span class="bn">07</span><span class="op">,</span>O7<span class="op">,</span>O5<span class="op">(</span><span class="bn">06</span><span class="op">,</span>O7<span class="op">,</span><span class="bn">00</span><span class="op">)):</span></span>
|
||||
<span id="cb9-29"><a href="#cb9-29" aria-hidden="true" tabindex="-1"></a><span class="co">/* E' */</span> <span class="op">!(</span>O2<span class="op">+=-</span><span class="bn">02</span><span class="op">/</span><span class="bn">02</span><span class="op">)</span> <span class="op">?</span>\</span>
|
||||
<span id="cb9-30"><a href="#cb9-30" aria-hidden="true" tabindex="-1"></a> <span class="op">(!(**</span>O7<span class="op">-</span><span class="bn">053</span><span class="op">)?</span>O5<span class="op">(</span><span class="bn">011</span><span class="op">,</span>O7<span class="op">,</span>O3<span class="op">+(++*</span>O7<span class="op">,</span>O5<span class="op">(</span><span class="bn">010</span><span class="op">,</span>O7<span class="op">,</span><span class="bn">00</span><span class="op">))):</span></span>
|
||||
<span id="cb9-31"><a href="#cb9-31" aria-hidden="true" tabindex="-1"></a> <span class="op">!(</span><span class="bn">055</span><span class="op">^**</span>O7<span class="op">)</span> <span class="op">?</span> O5<span class="op">(</span><span class="bn">011</span><span class="op">,</span>O7<span class="op">,</span>O3<span class="op">-(</span><span class="bn">03</span><span class="op">+*(*</span>O7<span class="op">)++,</span>O5<span class="op">(</span><span class="bn">010</span><span class="op">,</span>O7<span class="op">,</span><span class="bn">00</span><span class="op">))):</span>O3<span class="op">):</span></span>
|
||||
<span id="cb9-32"><a href="#cb9-32" aria-hidden="true" tabindex="-1"></a><span class="co">/* E */</span> <span class="op">!(</span>O2<span class="op">-=</span><span class="bn">0563</span><span class="op">&</span><span class="bn">0215</span><span class="op">)</span> <span class="op">?</span>\</span>
|
||||
<span id="cb9-33"><a href="#cb9-33" aria-hidden="true" tabindex="-1"></a> O5<span class="op">(</span><span class="bn">011</span><span class="op">,</span>O7<span class="op">,</span>O5<span class="op">(</span><span class="bn">010</span><span class="op">,</span>O7<span class="op">,</span><span class="bn">00</span><span class="op">)):</span></span>
|
||||
<span id="cb9-34"><a href="#cb9-34" aria-hidden="true" tabindex="-1"></a><span class="co">/* C */</span> <span class="op">(++*</span>O7<span class="op">,</span>O3<span class="op">);</span></span>
|
||||
<span id="cb9-35"><a href="#cb9-35" aria-hidden="true" tabindex="-1"></a><span class="op">}</span></span></code></pre></div>
|
||||
<div class="sourceCode" id="cb9"><pre class="sourceCode c"><code class="sourceCode c"><span id="cb9-1"><a href="#cb9-1" aria-hidden="true" tabindex="-1"></a> <span class="pp">#define O5 main</span></span>
|
||||
<span id="cb9-2"><a href="#cb9-2" aria-hidden="true" tabindex="-1"></a> O5<span class="op">(</span>O2<span class="op">,</span>O7<span class="op">,</span>O3<span class="op">)</span><span class="dt">char</span><span class="op">**</span>O7<span class="op">;</span></span>
|
||||
<span id="cb9-3"><a href="#cb9-3" aria-hidden="true" tabindex="-1"></a> <span class="op">{</span></span>
|
||||
<span id="cb9-4"><a href="#cb9-4" aria-hidden="true" tabindex="-1"></a> <span class="cf">return</span></span>
|
||||
<span id="cb9-5"><a href="#cb9-5" aria-hidden="true" tabindex="-1"></a> <span class="co">/* N1 */</span> <span class="op">!(</span>O2<span class="op">+=~</span><span class="bn">01</span><span class="op">+</span><span class="bn">01</span><span class="op">)</span> <span class="op">?</span>\</span>
|
||||
<span id="cb9-6"><a href="#cb9-6" aria-hidden="true" tabindex="-1"></a> <span class="bn">00</span><span class="op">:</span></span>
|
||||
<span id="cb9-7"><a href="#cb9-7" aria-hidden="true" tabindex="-1"></a> <span class="co">/* N2 */</span> <span class="op">!(</span>O2<span class="op">-=</span><span class="bn">02</span><span class="op">></span><span class="bn">01</span><span class="op">)</span> <span class="op">?</span>\</span>
|
||||
<span id="cb9-8"><a href="#cb9-8" aria-hidden="true" tabindex="-1"></a> printf<span class="op">(</span><span class="st">"</span><span class="sc">\045</span><span class="er">\1</span><span class="st">57</span><span class="sc">\012</span><span class="st">"</span><span class="op">,</span>O5<span class="op">(</span><span class="bn">012</span><span class="op">,</span>O7<span class="op">+</span><span class="bn">01</span><span class="op">,</span><span class="bn">00</span><span class="op">)):</span></span>
|
||||
<span id="cb9-9"><a href="#cb9-9" aria-hidden="true" tabindex="-1"></a> <span class="co">/* O */</span> <span class="op">!(</span>O2<span class="op">-=</span><span class="bn">02</span><span class="op">>></span><span class="bn">01</span><span class="op">)</span> <span class="op">?</span>\</span>
|
||||
<span id="cb9-10"><a href="#cb9-10" aria-hidden="true" tabindex="-1"></a> <span class="op">(**</span>O7<span class="op"><=</span><span class="bn">067</span> <span class="op">&&</span> <span class="op">**</span>O7<span class="op">></span><span class="bn">057</span> <span class="op">?</span> O5<span class="op">(</span><span class="bn">03</span><span class="op">,</span>O7<span class="op">,*(*</span>O7<span class="op">)++-</span><span class="bn">060</span><span class="op">+</span><span class="bn">010</span><span class="op">*</span>O3<span class="op">):</span>O3<span class="op">):</span></span>
|
||||
<span id="cb9-11"><a href="#cb9-11" aria-hidden="true" tabindex="-1"></a> <span class="co">/* D */</span> <span class="op">!(</span>O2<span class="op">-=-</span>O3<span class="op">-~</span>O3<span class="op">)</span> <span class="op">?</span>\</span>
|
||||
<span id="cb9-12"><a href="#cb9-12" aria-hidden="true" tabindex="-1"></a> <span class="op">(</span><span class="bn">072</span><span class="op">>**</span>O7 <span class="op">&&</span> <span class="bn">060</span><span class="op"><=**</span>O7 <span class="op">?</span> O5<span class="op">(</span><span class="bn">04</span><span class="op">,</span>O7<span class="op">,</span><span class="bn">012</span><span class="op">*</span>O3<span class="op">-</span><span class="bn">060</span><span class="op">+*(*</span>O7<span class="op">)++):</span>O3<span class="op">):</span></span>
|
||||
<span id="cb9-13"><a href="#cb9-13" aria-hidden="true" tabindex="-1"></a> <span class="co">/* X */</span> <span class="op">!(</span>O2<span class="op">-=!</span>O3<span class="op">+!!</span>O3<span class="op">)</span> <span class="op">?</span>\</span>
|
||||
<span id="cb9-14"><a href="#cb9-14" aria-hidden="true" tabindex="-1"></a> <span class="op">(**</span>O7<span class="op">></span><span class="bn">057</span> <span class="op">&&</span> <span class="op">**</span>O7<span class="op"><=</span><span class="bn">071</span> <span class="op">?</span> O5<span class="op">(</span><span class="bn">05</span><span class="op">,</span>O7<span class="op">,*(*</span>O7<span class="op">)+++</span>O3<span class="op">*</span><span class="bn">020</span><span class="op">-</span><span class="bn">060</span><span class="op">):</span></span>
|
||||
<span id="cb9-15"><a href="#cb9-15" aria-hidden="true" tabindex="-1"></a> <span class="op">**</span>O7<span class="op"><=</span><span class="bn">0106</span> <span class="op">&&</span> <span class="bn">0101</span><span class="op"><=**</span>O7 <span class="op">?</span> O5<span class="op">(</span><span class="bn">05</span><span class="op">,</span>O7<span class="op">,</span><span class="bn">020</span><span class="op">*</span>O3<span class="op">+*(*</span>O7<span class="op">)++-</span><span class="bn">067</span><span class="op">):</span></span>
|
||||
<span id="cb9-16"><a href="#cb9-16" aria-hidden="true" tabindex="-1"></a> <span class="bn">0140</span><span class="op"><**</span>O7 <span class="op">&&</span> <span class="op">**</span>O7<span class="op"><</span><span class="bn">0147</span> <span class="op">?</span> O5<span class="op">(</span><span class="bn">05</span><span class="op">,</span>O7<span class="op">,-</span><span class="bn">0127</span><span class="op">+*(*</span>O7<span class="op">)+++</span><span class="bn">020</span><span class="op">*</span>O3<span class="op">):</span>O3<span class="op">):</span></span>
|
||||
<span id="cb9-17"><a href="#cb9-17" aria-hidden="true" tabindex="-1"></a> <span class="co">/* F */</span> <span class="op">!(</span>O2<span class="op">-=</span><span class="bn">02</span><span class="op">-</span><span class="bn">01</span><span class="op">)</span> <span class="op">?</span>\</span>
|
||||
<span id="cb9-18"><a href="#cb9-18" aria-hidden="true" tabindex="-1"></a> <span class="op">(**</span>O7<span class="op">==</span><span class="bn">050</span> <span class="op">?</span> <span class="bn">050</span><span class="op">**++*</span>O7<span class="op">,</span>O5<span class="op">(</span><span class="bn">013</span><span class="op">,</span>O7<span class="op">,</span>O5<span class="op">(</span><span class="bn">012</span><span class="op">,</span>O7<span class="op">,</span><span class="bn">00</span><span class="op">)):</span></span>
|
||||
<span id="cb9-19"><a href="#cb9-19" aria-hidden="true" tabindex="-1"></a> <span class="op">**</span>O7<span class="op"><</span><span class="bn">056</span> <span class="op">&&</span> <span class="bn">054</span><span class="op"><**</span>O7 <span class="op">?</span> <span class="bn">055</span><span class="op">**++*</span>O7<span class="op">,-</span>O5<span class="op">(</span><span class="bn">06</span><span class="op">,</span>O7<span class="op">,</span><span class="bn">00</span><span class="op">):</span></span>
|
||||
<span id="cb9-20"><a href="#cb9-20" aria-hidden="true" tabindex="-1"></a> <span class="bn">054</span><span class="op">>**</span>O7 <span class="op">&&</span> <span class="bn">052</span><span class="op"><**</span>O7 <span class="op">?</span> <span class="bn">050</span><span class="op">**(*</span>O7<span class="op">)++,</span>O5<span class="op">(</span><span class="bn">06</span><span class="op">,</span>O7<span class="op">,</span><span class="bn">00</span><span class="op">):</span></span>
|
||||
<span id="cb9-21"><a href="#cb9-21" aria-hidden="true" tabindex="-1"></a> <span class="op">!(**</span>O7<span class="op">^</span><span class="bn">0170</span><span class="op">)||!(</span><span class="bn">0130</span><span class="op">^**</span>O7<span class="op">)</span> <span class="op">?</span> <span class="op">*++*</span>O7<span class="op">,</span>O5<span class="op">(</span><span class="bn">05</span><span class="op">,</span>O7<span class="op">,</span><span class="bn">00</span><span class="op">):</span></span>
|
||||
<span id="cb9-22"><a href="#cb9-22" aria-hidden="true" tabindex="-1"></a> <span class="op">**</span>O7<span class="op">==</span><span class="bn">0144</span><span class="op">||**</span>O7<span class="op">==</span><span class="bn">0104</span> <span class="op">?</span> <span class="op">++*</span>O7<span class="op">,</span>O5<span class="op">(</span><span class="bn">04</span><span class="op">,</span>O7<span class="op">,</span><span class="bn">00</span><span class="op">):</span>O5<span class="op">(</span><span class="bn">03</span><span class="op">,</span>O7<span class="op">,</span><span class="bn">00</span><span class="op">)):</span></span>
|
||||
<span id="cb9-23"><a href="#cb9-23" aria-hidden="true" tabindex="-1"></a> <span class="co">/* T' */</span> <span class="op">!--</span>O2 <span class="op">?</span>\</span>
|
||||
<span id="cb9-24"><a href="#cb9-24" aria-hidden="true" tabindex="-1"></a> <span class="op">(**</span>O7<span class="op">==</span><span class="bn">052</span> <span class="op">?</span> O5<span class="op">(</span><span class="bn">07</span><span class="op">,</span>O7<span class="op">,</span>O3<span class="op">*(*++*</span>O7<span class="op">,</span>O5<span class="op">(</span><span class="bn">06</span><span class="op">,</span>O7<span class="op">,</span><span class="bn">00</span><span class="op">))):</span></span>
|
||||
<span id="cb9-25"><a href="#cb9-25" aria-hidden="true" tabindex="-1"></a> <span class="op">!(</span><span class="bn">045</span><span class="op">-**</span>O7<span class="op">)</span> <span class="op">?</span> O5<span class="op">(</span><span class="bn">07</span><span class="op">,</span>O7<span class="op">,</span>O3<span class="op">%(</span><span class="bn">03</span><span class="op">+(*</span>O7<span class="op">)++,</span>O5<span class="op">(</span><span class="bn">06</span><span class="op">,</span>O7<span class="op">,</span><span class="bn">00</span><span class="op">))):</span></span>
|
||||
<span id="cb9-26"><a href="#cb9-26" aria-hidden="true" tabindex="-1"></a> <span class="op">!(**</span>O7<span class="op">^</span><span class="bn">057</span><span class="op">)</span> <span class="op">?</span> O5<span class="op">(</span><span class="bn">07</span><span class="op">,</span>O7<span class="op">,</span>O3<span class="op">/(</span><span class="bn">03</span><span class="op">-*++*</span>O7<span class="op">,</span>O5<span class="op">(</span><span class="bn">06</span><span class="op">,</span>O7<span class="op">,</span><span class="bn">00</span><span class="op">))):</span>O3<span class="op">):</span></span>
|
||||
<span id="cb9-27"><a href="#cb9-27" aria-hidden="true" tabindex="-1"></a> <span class="co">/* T */</span> <span class="op">!(</span>O2<span class="op">+=</span><span class="bn">01</span><span class="op">-</span><span class="bn">02</span><span class="op">)</span> <span class="op">?</span>\</span>
|
||||
<span id="cb9-28"><a href="#cb9-28" aria-hidden="true" tabindex="-1"></a> O5<span class="op">(</span><span class="bn">07</span><span class="op">,</span>O7<span class="op">,</span>O5<span class="op">(</span><span class="bn">06</span><span class="op">,</span>O7<span class="op">,</span><span class="bn">00</span><span class="op">)):</span></span>
|
||||
<span id="cb9-29"><a href="#cb9-29" aria-hidden="true" tabindex="-1"></a> <span class="co">/* E' */</span> <span class="op">!(</span>O2<span class="op">+=-</span><span class="bn">02</span><span class="op">/</span><span class="bn">02</span><span class="op">)</span> <span class="op">?</span>\</span>
|
||||
<span id="cb9-30"><a href="#cb9-30" aria-hidden="true" tabindex="-1"></a> <span class="op">(!(**</span>O7<span class="op">-</span><span class="bn">053</span><span class="op">)?</span>O5<span class="op">(</span><span class="bn">011</span><span class="op">,</span>O7<span class="op">,</span>O3<span class="op">+(++*</span>O7<span class="op">,</span>O5<span class="op">(</span><span class="bn">010</span><span class="op">,</span>O7<span class="op">,</span><span class="bn">00</span><span class="op">))):</span></span>
|
||||
<span id="cb9-31"><a href="#cb9-31" aria-hidden="true" tabindex="-1"></a> <span class="op">!(</span><span class="bn">055</span><span class="op">^**</span>O7<span class="op">)</span> <span class="op">?</span> O5<span class="op">(</span><span class="bn">011</span><span class="op">,</span>O7<span class="op">,</span>O3<span class="op">-(</span><span class="bn">03</span><span class="op">+*(*</span>O7<span class="op">)++,</span>O5<span class="op">(</span><span class="bn">010</span><span class="op">,</span>O7<span class="op">,</span><span class="bn">00</span><span class="op">))):</span>O3<span class="op">):</span></span>
|
||||
<span id="cb9-32"><a href="#cb9-32" aria-hidden="true" tabindex="-1"></a> <span class="co">/* E */</span> <span class="op">!(</span>O2<span class="op">-=</span><span class="bn">0563</span><span class="op">&</span><span class="bn">0215</span><span class="op">)</span> <span class="op">?</span>\</span>
|
||||
<span id="cb9-33"><a href="#cb9-33" aria-hidden="true" tabindex="-1"></a> O5<span class="op">(</span><span class="bn">011</span><span class="op">,</span>O7<span class="op">,</span>O5<span class="op">(</span><span class="bn">010</span><span class="op">,</span>O7<span class="op">,</span><span class="bn">00</span><span class="op">)):</span></span>
|
||||
<span id="cb9-34"><a href="#cb9-34" aria-hidden="true" tabindex="-1"></a> <span class="co">/* C */</span> <span class="op">(++*</span>O7<span class="op">,</span>O3<span class="op">);</span></span>
|
||||
<span id="cb9-35"><a href="#cb9-35" aria-hidden="true" tabindex="-1"></a> <span class="op">}</span></span></code></pre></div>
|
||||
<p>Note <code>N1</code>: It should never enter this state, unless the user invokes the
|
||||
program with no parameters, in which case it just returns 0.</p>
|
||||
<p>Note <code>N2</code>: Since the program is properly invoked with 1 parameter, this is
|
||||
the first state it will go into. This state just invokes
|
||||
printf, and sends the parser to state <code>012</code> (which is <code><E></code>).</p>
|
||||
<p>The <code>E</code> and <code>T</code> states work like this:</p>
|
||||
<div class="sourceCode" id="cb10"><pre class="sourceCode c"><code class="sourceCode c"><span id="cb10-1"><a href="#cb10-1" aria-hidden="true" tabindex="-1"></a><span class="dt">int</span> e<span class="op">(){</span> <span class="cf">return</span> eprime<span class="op">(</span> t<span class="op">()</span> <span class="op">);</span> <span class="op">}</span></span></code></pre></div>
|
||||
<div class="sourceCode" id="cb10"><pre class="sourceCode c"><code class="sourceCode c"><span id="cb10-1"><a href="#cb10-1" aria-hidden="true" tabindex="-1"></a> <span class="dt">int</span> e<span class="op">(){</span> <span class="cf">return</span> eprime<span class="op">(</span> t<span class="op">()</span> <span class="op">);</span> <span class="op">}</span></span></code></pre></div>
|
||||
<p>The <code>E'</code> and <code>T'</code> states work like this:</p>
|
||||
<div class="sourceCode" id="cb11"><pre class="sourceCode c"><code class="sourceCode c"><span id="cb11-1"><a href="#cb11-1" aria-hidden="true" tabindex="-1"></a><span class="dt">int</span> eprime<span class="op">(</span> <span class="dt">int</span> intermediate <span class="op">)</span></span>
|
||||
<span id="cb11-2"><a href="#cb11-2" aria-hidden="true" tabindex="-1"></a><span class="op">{</span></span>
|
||||
<span id="cb11-3"><a href="#cb11-3" aria-hidden="true" tabindex="-1"></a> <span class="cf">if</span><span class="op">(</span> ch <span class="op">==</span> <span class="ch">'+'</span> <span class="op">)</span></span>
|
||||
<span id="cb11-4"><a href="#cb11-4" aria-hidden="true" tabindex="-1"></a> <span class="op">{</span></span>
|
||||
<span id="cb11-5"><a href="#cb11-5" aria-hidden="true" tabindex="-1"></a> ch <span class="op">=</span> nextchar<span class="op">();</span></span>
|
||||
<span id="cb11-6"><a href="#cb11-6" aria-hidden="true" tabindex="-1"></a> <span class="cf">return</span> eprime<span class="op">(</span> intermediate <span class="op">+</span> t<span class="op">()</span> <span class="op">);</span></span>
|
||||
<span id="cb11-7"><a href="#cb11-7" aria-hidden="true" tabindex="-1"></a> <span class="op">}</span></span>
|
||||
<span id="cb11-8"><a href="#cb11-8" aria-hidden="true" tabindex="-1"></a> <span class="cf">else</span> <span class="cf">return</span> intermediate<span class="op">;</span></span>
|
||||
<span id="cb11-9"><a href="#cb11-9" aria-hidden="true" tabindex="-1"></a><span class="op">}</span></span></code></pre></div>
|
||||
<div class="sourceCode" id="cb11"><pre class="sourceCode c"><code class="sourceCode c"><span id="cb11-1"><a href="#cb11-1" aria-hidden="true" tabindex="-1"></a> <span class="dt">int</span> eprime<span class="op">(</span> <span class="dt">int</span> intermediate <span class="op">)</span></span>
|
||||
<span id="cb11-2"><a href="#cb11-2" aria-hidden="true" tabindex="-1"></a> <span class="op">{</span></span>
|
||||
<span id="cb11-3"><a href="#cb11-3" aria-hidden="true" tabindex="-1"></a> <span class="cf">if</span><span class="op">(</span> ch <span class="op">==</span> <span class="ch">'+'</span> <span class="op">)</span></span>
|
||||
<span id="cb11-4"><a href="#cb11-4" aria-hidden="true" tabindex="-1"></a> <span class="op">{</span></span>
|
||||
<span id="cb11-5"><a href="#cb11-5" aria-hidden="true" tabindex="-1"></a> ch <span class="op">=</span> nextchar<span class="op">();</span></span>
|
||||
<span id="cb11-6"><a href="#cb11-6" aria-hidden="true" tabindex="-1"></a> <span class="cf">return</span> eprime<span class="op">(</span> intermediate <span class="op">+</span> t<span class="op">()</span> <span class="op">);</span></span>
|
||||
<span id="cb11-7"><a href="#cb11-7" aria-hidden="true" tabindex="-1"></a> <span class="op">}</span></span>
|
||||
<span id="cb11-8"><a href="#cb11-8" aria-hidden="true" tabindex="-1"></a> <span class="cf">else</span> <span class="cf">return</span> intermediate<span class="op">;</span></span>
|
||||
<span id="cb11-9"><a href="#cb11-9" aria-hidden="true" tabindex="-1"></a> <span class="op">}</span></span></code></pre></div>
|
||||
<p>The <code>D</code>, <code>X</code> and <code>O</code> states work like this (they assume that they’re initially
|
||||
called with <code>0</code>):</p>
|
||||
<div class="sourceCode" id="cb12"><pre class="sourceCode c"><code class="sourceCode c"><span id="cb12-1"><a href="#cb12-1" aria-hidden="true" tabindex="-1"></a><span class="dt">int</span> octal<span class="op">(</span> <span class="dt">int</span> intermediate <span class="op">)</span></span>
|
||||
<span id="cb12-2"><a href="#cb12-2" aria-hidden="true" tabindex="-1"></a><span class="op">{</span></span>
|
||||
<span id="cb12-3"><a href="#cb12-3" aria-hidden="true" tabindex="-1"></a> <span class="cf">if</span><span class="op">(</span> ch<span class="op">>=</span><span class="ch">'0'</span> <span class="op">&&</span> ch<span class="op"><=</span><span class="ch">'7'</span> <span class="op">)</span></span>
|
||||
<span id="cb12-4"><a href="#cb12-4" aria-hidden="true" tabindex="-1"></a> <span class="op">{</span></span>
|
||||
<span id="cb12-5"><a href="#cb12-5" aria-hidden="true" tabindex="-1"></a> intermediate <span class="op">=</span> intermediate <span class="op">*</span> <span class="dv">8</span> <span class="op">+</span> ch <span class="op">-</span> <span class="ch">'0'</span><span class="op">;</span></span>
|
||||
<span id="cb12-6"><a href="#cb12-6" aria-hidden="true" tabindex="-1"></a> ch <span class="op">=</span> nextchar<span class="op">();</span></span>
|
||||
<span id="cb12-7"><a href="#cb12-7" aria-hidden="true" tabindex="-1"></a> <span class="cf">return</span> octal<span class="op">(</span> intermediate <span class="op">);</span></span>
|
||||
<span id="cb12-8"><a href="#cb12-8" aria-hidden="true" tabindex="-1"></a> <span class="op">}</span></span>
|
||||
<span id="cb12-9"><a href="#cb12-9" aria-hidden="true" tabindex="-1"></a> <span class="cf">else</span> <span class="cf">return</span> intermediate<span class="op">;</span></span>
|
||||
<span id="cb12-10"><a href="#cb12-10" aria-hidden="true" tabindex="-1"></a><span class="op">}</span></span></code></pre></div>
|
||||
<div class="sourceCode" id="cb12"><pre class="sourceCode c"><code class="sourceCode c"><span id="cb12-1"><a href="#cb12-1" aria-hidden="true" tabindex="-1"></a> <span class="dt">int</span> octal<span class="op">(</span> <span class="dt">int</span> intermediate <span class="op">)</span></span>
|
||||
<span id="cb12-2"><a href="#cb12-2" aria-hidden="true" tabindex="-1"></a> <span class="op">{</span></span>
|
||||
<span id="cb12-3"><a href="#cb12-3" aria-hidden="true" tabindex="-1"></a> <span class="cf">if</span><span class="op">(</span> ch<span class="op">>=</span><span class="ch">'0'</span> <span class="op">&&</span> ch<span class="op"><=</span><span class="ch">'7'</span> <span class="op">)</span></span>
|
||||
<span id="cb12-4"><a href="#cb12-4" aria-hidden="true" tabindex="-1"></a> <span class="op">{</span></span>
|
||||
<span id="cb12-5"><a href="#cb12-5" aria-hidden="true" tabindex="-1"></a> intermediate <span class="op">=</span> intermediate <span class="op">*</span> <span class="dv">8</span> <span class="op">+</span> ch <span class="op">-</span> <span class="ch">'0'</span><span class="op">;</span></span>
|
||||
<span id="cb12-6"><a href="#cb12-6" aria-hidden="true" tabindex="-1"></a> ch <span class="op">=</span> nextchar<span class="op">();</span></span>
|
||||
<span id="cb12-7"><a href="#cb12-7" aria-hidden="true" tabindex="-1"></a> <span class="cf">return</span> octal<span class="op">(</span> intermediate <span class="op">);</span></span>
|
||||
<span id="cb12-8"><a href="#cb12-8" aria-hidden="true" tabindex="-1"></a> <span class="op">}</span></span>
|
||||
<span id="cb12-9"><a href="#cb12-9" aria-hidden="true" tabindex="-1"></a> <span class="cf">else</span> <span class="cf">return</span> intermediate<span class="op">;</span></span>
|
||||
<span id="cb12-10"><a href="#cb12-10" aria-hidden="true" tabindex="-1"></a> <span class="op">}</span></span></code></pre></div>
|
||||
<p><code>F</code> and <code>C</code> work similarly.</p>
|
||||
<!--
|
||||
|
||||
|
||||
Reference in new issue
Block a user