ZealOS/docs/Demo/Lectures/LexDemo.ZC.html
2021-12-30 22:21:33 -05:00

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<pre style="font-family:monospace;font-size:12pt">
<a name="l1"></a><span class=cF0>
<a name="l2"></a></span><span class=cF2>// See </span><a href="https://zeal-operating-system.github.io/ZealOS/Kernel/KernelA.HH.html#l2211"><span class=cF4>Tokens</span></a><span class=cF2>.</span><span class=cF0>
<a name="l3"></a>
<a name="l4"></a></span><span class=cF1>U0</span><span class=cF0> Main()
<a name="l5"></a>{
<a name="l6"></a> </span><span class=cF1>U8</span><span class=cF0> *src;
<a name="l7"></a> </span><span class=cF9>CCompCtrl</span><span class=cF0> *cc;
<a name="l8"></a> </span><span class=cF9>I64</span><span class=cF0> tk;
<a name="l9"></a>
<a name="l10"></a> </span><span class=cF6>&quot;\nThis will Lex an expression,\n&quot;</span><span class=cF0>
<a name="l11"></a> </span><span class=cF6>&quot;reporting token-by-token.\n\n&quot;</span><span class=cF0>;
<a name="l12"></a>
<a name="l13"></a> </span><span class=cF1>while</span><span class=cF0> (</span><span class=cF3>TRUE</span><span class=cF0>)
<a name="l14"></a> </span><span class=cF7>{</span><span class=cF0>
<a name="l15"></a> </span><span class=cF6>&quot;\n&quot;</span><span class=cF0>;
<a name="l16"></a> src = </span><span class=cF5>StrGet</span><span class=cF0>;
<a name="l17"></a> </span><span class=cF1>if</span><span class=cF0> (*src)
<a name="l18"></a> {
<a name="l19"></a> cc = </span><span class=cF5>CompCtrlNew</span><span class=cF0>(src);
<a name="l20"></a>
<a name="l21"></a> </span><span class=cF1>while</span><span class=cF0> (tk = </span><span class=cF5>Lex</span><span class=cF7>(</span><span class=cF0>cc</span><span class=cF7>)</span><span class=cF0>)
<a name="l22"></a> </span><span class=cF7>{</span><span class=cF0>
<a name="l23"></a> </span><span class=cF6>&quot;TOKEN: 0x%04X %d\n&quot;</span><span class=cF0>, tk, tk;
<a name="l24"></a> </span><span class=cF7>}</span><span class=cF0>
<a name="l25"></a>
<a name="l26"></a> </span><span class=cF5>CompCtrlDel</span><span class=cF0>(cc);
<a name="l27"></a> }
<a name="l28"></a> </span><span class=cF1>else</span><span class=cF0>
<a name="l29"></a> {
<a name="l30"></a> </span><span class=cF5>Free</span><span class=cF0>(src);
<a name="l31"></a> </span><span class=cF1>break</span><span class=cF0>;
<a name="l32"></a> }
<a name="l33"></a> </span><span class=cF7>}</span><span class=cF0>
<a name="l34"></a>}
<a name="l35"></a>
<a name="l36"></a>Main;
<a name="l37"></a>
</span></pre></body>
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