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0001 <!DOCTYPE html> 0002 <html><head> 0003 <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/> 0004 <title>test.rkt</title> 0005 <meta name="generator" content="KF5::SyntaxHighlighting - Definition (Racket) - Theme (Breeze Light)"/> 0006 </head><body style="background-color:#ffffff;color:#1f1c1b"><pre> 0007 <span style="color:#898887">#lang racket/gui</span> 0008 0009 <span style="color:#ca60ca">(</span><span style="color:#0095ff;font-weight:bold">define</span><span style="color:#644a9b"> my-language </span>'English<span style="color:#ca60ca">)</span> 0010 0011 <span style="color:#ca60ca">(</span><span style="color:#0095ff;font-weight:bold">define</span><span style="color:#644a9b"> translations</span> 0012 #hash<span style="color:#ca60ca">([</span>English . <span style="color:#bf0303">"Hello world"</span><span style="color:#ca60ca">]</span> 0013 <span style="color:#ca60ca">[</span>French . <span style="color:#bf0303">"Bonjour le monde"</span><span style="color:#ca60ca">]</span> 0014 <span style="color:#ca60ca">[</span>German . <span style="color:#bf0303">"Hallo Welt"</span><span style="color:#ca60ca">]</span> 0015 <span style="color:#ca60ca">[</span>Greek . <span style="color:#bf0303">"Γειά σου, κόσμε"</span><span style="color:#ca60ca">]</span> 0016 <span style="color:#ca60ca">[</span>Portuguese . <span style="color:#bf0303">"Olá mundo"</span><span style="color:#ca60ca">]</span> 0017 <span style="color:#ca60ca">[</span>Spanish . <span style="color:#bf0303">"Hola mundo"</span><span style="color:#ca60ca">]</span> 0018 <span style="color:#ca60ca">[</span>Thai . <span style="color:#bf0303">"สวัสดีชาวโลก"</span><span style="color:#ca60ca">]))</span> 0019 0020 <span style="color:#ca60ca">(</span><span style="color:#0095ff;font-weight:bold">define</span><span style="color:#644a9b"> my-hello-world</span> 0021 <span style="color:#ca60ca">(</span>hash-ref translations my-language 0022 <span style="color:#bf0303">"hello world"</span><span style="color:#ca60ca">))</span> 0023 0024 <span style="color:#ca60ca">(</span>message-box <span style="color:#bf0303">""</span> my-hello-world<span style="color:#ca60ca">)</span> 0025 0026 <span style="color:#898887">; Organizing interconnected function definitions with local</span> 0027 <span style="color:#898887">; [List-of Number] [Number Number -> Boolean]</span> 0028 <span style="color:#898887">; -> [List-of Number]</span> 0029 <span style="color:#898887">; produces a version of alon0, sorted according to cmp</span> 0030 <span style="color:#ca60ca">(</span><span style="color:#0095ff;font-weight:bold">define</span><span style="color:#644a9b"> </span><span style="color:#ca60ca">(</span>sort-cmp alon0 cmp<span style="color:#ca60ca">)</span> 0031 <span style="color:#ca60ca">(</span>local <span style="color:#ca60ca">(</span><span style="color:#898887">; [List-of Number] -> [List-of Number]</span> 0032 <span style="color:#898887">; produces the sorted version of alon</span> 0033 <span style="color:#ca60ca">(</span><span style="color:#0095ff;font-weight:bold">define</span><span style="color:#644a9b"> </span><span style="color:#ca60ca">(</span>isort alon<span style="color:#ca60ca">)</span> 0034 <span style="color:#ca60ca">(</span><span style="font-weight:bold">cond</span> 0035 <span style="color:#ca60ca">[(</span>empty? alon<span style="color:#ca60ca">)</span> '<span style="color:#ca60ca">()]</span> 0036 <span style="color:#ca60ca">[</span><span style="font-weight:bold">else</span> 0037 <span style="color:#ca60ca">(</span>insert <span style="color:#ca60ca">(</span>first alon<span style="color:#ca60ca">)</span> <span style="color:#ca60ca">(</span>isort <span style="color:#ca60ca">(</span>rest alon<span style="color:#ca60ca">)))]))</span> 0038 0039 <span style="color:#898887">; Number [List-of Number] -> [List-of Number]</span> 0040 <span style="color:#898887">; inserts n into the sorted list of numbers alon</span> 0041 <span style="color:#ca60ca">(</span><span style="color:#0095ff;font-weight:bold">define</span><span style="color:#644a9b"> </span><span style="color:#ca60ca">(</span>insert n alon<span style="color:#ca60ca">)</span> 0042 <span style="color:#ca60ca">(</span><span style="font-weight:bold">cond</span> 0043 <span style="color:#ca60ca">[(</span>empty? alon<span style="color:#ca60ca">)</span> <span style="color:#ca60ca">(</span><span style="font-weight:bold">cons</span> n '<span style="color:#ca60ca">())]</span> 0044 <span style="color:#ca60ca">[</span><span style="font-weight:bold">else</span> <span style="color:#ca60ca">(</span><span style="font-weight:bold">if</span> <span style="color:#ca60ca">(</span>cmp n <span style="color:#ca60ca">(</span>first alon<span style="color:#ca60ca">))</span> 0045 <span style="color:#ca60ca">(</span><span style="font-weight:bold">cons</span> n alon<span style="color:#ca60ca">)</span> 0046 <span style="color:#ca60ca">(</span><span style="font-weight:bold">cons</span> <span style="color:#ca60ca">(</span>first alon<span style="color:#ca60ca">)</span> 0047 <span style="color:#ca60ca">(</span>insert n <span style="color:#ca60ca">(</span>rest alon<span style="color:#ca60ca">))))])))</span> 0048 <span style="color:#ca60ca">(</span>isort alon0<span style="color:#ca60ca">)))</span> 0049 0050 </pre></body></html>