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13 changes: 5 additions & 8 deletions Index.html
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Expand Up @@ -180,14 +180,11 @@ <h1 class="menu-title">Successful Lisp - ํ•œ๊ตญ์–ดํŒ</h1>
<main>
<h1 id="๋“ค์–ด๊ฐ€๋ฉฐ"><a class="header" href="#๋“ค์–ด๊ฐ€๋ฉฐ">๋“ค์–ด๊ฐ€๋ฉฐ</a></h1>
<p>successful Lisp์˜ 3์žฅ - 12๊ฐœ์˜ ๋ ˆ์Šจ์œผ๋กœ ๋ฐฐ์šฐ๋Š” ํ•„์ˆ˜ ๋ฆฌ์Šคํ”„ ๋ฒˆ์—ญ๋ณธ์ž…๋‹ˆ๋‹ค.</p>
<h2 id="ref"><a class="header" href="#ref">Ref</a></h2>
<ul>
<li><a href="https://dept-info.labri.fr/~strandh/Teaching/MTP/Common/David-Lamkins/contents.html">https://dept-info.labri.fr/~strandh/Teaching/MTP/Common/David-Lamkins/contents.html</a>
<ul>
<li><a href="https://github.com/TieDyedDevil">https://github.com/TieDyedDevil</a></li>
</ul>
</li>
</ul>
<p>๋‹ค๋น„๋“œ ๋ผํ‚จ์Šค, ๋ฒˆ์—ญ์„ ํ—ˆ๋ฝํ•ด์ฃผ์…”์„œ ๊ฐ์‚ฌํ•ฉ๋‹ˆ๋‹ค. ๊ทธ์˜ ์›น์‚ฌ์ดํŠธ๋Š” <a href="http://lamkins.net">http://lamkins.net</a> ์ž…๋‹ˆ๋‹ค.
๊ทธ์˜ github๋Š” <a href="https://github.com/TieDyedDevil">https://github.com/TieDyedDevil</a>์ด๋ฉฐ ๊ทธ์˜ ์ฑ…์˜ ์›๋ฌธ์€ ์†Œ์Šค์ฝ”๋“œ๋Š” <a href="https://dept-info.labri.fr/~strandh/Teaching/MTP/Common/David-Lamkins/contents.html">์ด๊ณณ</a>์—์„œ ๋ณผ ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค. Successful Lisp์˜ ์ €์ž‘๊ถŒ์€ David Lamkins์—๊ฒŒ ์žˆ์Šต๋‹ˆ๋‹ค.</p>
<p>David Lamkins, Thank you for allowing me to translate your book. His personnal website is <a href="http://lamkins.net">http://lamkins.net</a>
His github is <a href="https://github.com/TieDyedDevil">https://github.com/TieDyedDevil</a> then His original book is <a href="https://dept-info.labri.fr/~strandh/Teaching/MTP/Common/David-Lamkins/contents.html">here</a>.
and David Lamkins owns Successful Lisp's copyright.</p>

</main>

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76 changes: 75 additions & 1 deletion ch03/lesson_05.html
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Expand Up @@ -178,7 +178,81 @@ <h1 class="menu-title">Successful Lisp - ํ•œ๊ตญ์–ดํŒ</h1>

<div id="content" class="content">
<main>
<h1 id="๋ ˆ์Šจ-05-๋„ค์ด๋ฐ๊ณผ-์•„์ด๋ดํ‹ฐํ‹ฐ"><a class="header" href="#๋ ˆ์Šจ-05-๋„ค์ด๋ฐ๊ณผ-์•„์ด๋ดํ‹ฐํ‹ฐ">๋ ˆ์Šจ 05. ๋„ค์ด๋ฐ๊ณผ ์•„์ด๋ดํ‹ฐํ‹ฐ</a></h1>
<h1 id="๋ ˆ์Šจ-05-๋„ค์ด๋ฐ๊ณผ-์•„์ด๋ดํ‹ฐํ‹ฐnaming-and-identity"><a class="header" href="#๋ ˆ์Šจ-05-๋„ค์ด๋ฐ๊ณผ-์•„์ด๋ดํ‹ฐํ‹ฐnaming-and-identity">๋ ˆ์Šจ 05. ๋„ค์ด๋ฐ๊ณผ ์•„์ด๋ดํ‹ฐํ‹ฐ(Naming and Identity)</a></h1>
<ul>
<li><a href="https://dept-info.labri.fr/~strandh/Teaching/MTP/Common/David-Lamkins/chapter03-05.html">์›๋ฌธ</a></li>
</ul>
<h2 id="์‹ฌ๋ณผ์€-๋‹จ์ง€-์ด๋ฆ„"><a class="header" href="#์‹ฌ๋ณผ์€-๋‹จ์ง€-์ด๋ฆ„">์‹ฌ๋ณผ์€ ๋‹จ์ง€ ์ด๋ฆ„</a></h2>
<p>์‹ฌ๋ณผ์€ ๋‹จ์ง€ ์ด๋ฆ„์ž…๋‹ˆ๋‹ค. ์‹ฌ๋ณผ์€ ์‹ฌ๋ณผ ๊ทธ ์ž์ฒด ์ž…๋‹ˆ๋‹ค. ์ด๋Š” ๋ฆฌ์Šคํ”„์—์„œ ํŠน์ • ์ข…๋ฅ˜์˜ ํ”„๋กœ๊ทธ๋žจ์„ ์ž‘์„ฑํ•˜๋Š” ๊ฒƒ์„ ์‰ฝ๊ฒŒ ๋งŒ๋“ค์–ด ์ค๋‹ˆ๋‹ค. ์˜ˆ๋ฅผ๋“ค์–ด, ํ”„๋กœ๊ทธ๋žจ์œผ๋กœ ๊ฐ€์กฑ ๊ด€๊ณ„๋ฅผ ๋‚˜ํƒ€๋‚ด๊ณ ์ž ํ•œ๋‹ค๋ฉด, ์ด์™€ ๊ฐ™์€ ๊ด€๊ณ„๋ฅผ ๋‚˜ํƒ€๋‚ด๋Š” ๋ฐ์ดํ„ฐ๋ฒ ์ด์Šค๋ฅผ ๋งŒ๋“ค ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค:</p>
<pre><code class="language-lisp">(father John Barry)
(son John Harold)
(father John Susan)
(mother Edith Barry)
(mother Edith Susan)

...

</code></pre>
<p>๊ฐ๊ฐ์˜ ๊ด€๊ณ„๋ฅผ ๋ฆฌ์ŠคํŠธ๋กœ ํ‘œํ˜„ํ–ˆ์Šต๋‹ˆ๋‹ค. ์˜ˆ๋กœ <code>(father John Barry)</code>๋Š” <code>John</code>์€ <code>Barry์˜ ์•„๋ฒ„์ง€</code>๋ผ๋Š” ๊ฒƒ์„ ์˜๋ฏธํ•ฉ๋‹ˆ๋‹ค. ๋ฐ์ดํ„ฐ๋ฒ ์ด์Šค ์† ๋ฆฌ์ŠคํŠธ์˜ ๋ชจ๋“  ์š”์†Œ๋Š” ์‹ฌ๋ณผ์ž…๋‹ˆ๋‹ค. ์˜ˆ๋ฅผ๋“ค์–ด Harold๋Š” Barry์˜ ํ• ์•„๋ฒ„์ง€๋ผ๋Š” ๊ฒƒ์„ ํŒ๋ณ„ํ•˜๊ธฐ ์œ„ํ•ด ๋ฆฌ์Šคํ”„ ํ”„๋กœ๊ทธ๋žจ์€ ์ด ๋ฐ์ดํ„ฐ๋ฒ ์ด์Šค์•ˆ์— ์žˆ๋Š” ์‹ฌ๋ณผ๋“ค์„ ๋น„๊ตํ•  ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค.</p>
<p>(์‹ฌ๋ณผ์ด ์—†๋Š”)๋‹ค๋ฅธ ์–ธ์–ด ์–ธ์–ด์—์„œ ์ด์™€ ๊ฐ™์€ ํ”„๋กœ๊ทธ๋žจ์„ ์ž‘์„ฑํ•˜๊ณ ์ž ํ•œ๋‹ค๋ฉด, ๊ฐ€์กฑ ๊ตฌ์„ฑ์›์˜ ์ด๋ฆ„๊ณผ ๊ด€๊ณ„๋ฅผ ์–ด๋–ป๊ฒŒ ํ‘œํ˜„ํ•ด์•ผํ• ์ง€ ๊ฒฐ์ •ํ•ด์•ผ๋งŒ ํ•ด์•ผํ•˜๋ฉฐ, ๊ฑฐ๊ธฐ์— ํ•„์š”ํ•œ ๋ชจ๋“  ๋™์ž‘๋“ค์„ ์ˆ˜ํ–‰ํ•˜๋Š” ์ฝ”๋“œ๋ฅผ ์ž‘์„ฑํ•ด์•ผ๋งŒ ํ•  ๊ฒƒ์ž…๋‹ˆ๋‹ค(์ฝ๊ณ , ์ถœ๋ ฅํ•˜๊ณ , ๋น„๊ตํ•˜๊ณ , ํ• ๋‹นํ•˜๊ณ , ๊ธฐํƒ€๋“ฑ๋“ฑ). :TODO(pyoung) This is all built into Lisp, because symbols are a data type distinct from the objects they might be used to name.</p>
<h2 id="์‹ฌ๋ณผ์€-ํ•ญ์ƒ-์œ ๋‹ˆํฌํ•˜๋‹ค"><a class="header" href="#์‹ฌ๋ณผ์€-ํ•ญ์ƒ-์œ ๋‹ˆํฌํ•˜๋‹ค">์‹ฌ๋ณผ์€ ํ•ญ์ƒ ์œ ๋‹ˆํฌํ•˜๋‹ค.</a></h2>
<p>ํ”„๋กœ๊ทธ๋žจ์—์„œ ์ด๋ฆ„์ด ๊ฐ™์€ ์‹ฌ๋ณผ์€ ํ•ญ์ƒ ๋™์ผํ•ฉ๋‹ˆ๋‹ค. <code>eq</code> ํ…Œ์ŠคํŠธ๋กœ ์‹ฌ๋ณผ์„ ๋น„๊ตํ•  ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค:</p>
<pre><code class="language-lisp">(eq 'a 'a)
;;=&gt; T

(eq 'david 'a)
;;=&gt; NIL

(eq 'David 'DAVID)
;;=&gt; T

(setq zzz 'sleeper)
;;=&gt; SLEEPER

(eq zzz 'sleeper)
;;=&gt; T
</code></pre>
<p>์‹ฌ๋ณผ ์ด๋ฆ„์œผ๋กœ ๋Œ€๋ฌธ์ž๋‚˜ ์†Œ๋ฌธ์ž๋ฅผ ์‚ฌ์šฉํ•˜๋Š” ๊ฒƒ์€ ๋ฌธ์ œ๊ฐ€ ๋˜์ง€ ์•Š์Šต๋‹ˆ๋‹ค. ๋‚ด๋ถ€์ ์œผ๋กœ, ๋ฆฌ์Šคํ”„๋Š” ์‹ฌ๋ณผ ์ด๋ฆ„์— ์žˆ๋Š” ๋ชจ๋“  ์•ŒํŒŒ๋ฒณ ๋ฌธ์ž๋“ค์„ ๋ณดํ†ต์€ ๋Œ€๋ฌธ์ž๋กœ ๋ฐ”๊พธ๋ฉฐ, ๋ฆฌ์Šคํ”„ ๋ฆฌ๋” ์†์— ์žˆ๋Š” ํ”Œ๋ ˆ๊ทธ๋ฅผ ์„ค์ •ํ•˜์—ฌ ์ด ๊ธฐ๋ณธ ์„ค์ •์„ ์ œ์–ดํ•  ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค.
๋ ˆ์Šจ 10 [p 65](๋˜ํ•œ 31์žฅ [p 247]์ฐธ์กฐ)์—์„œ ํŒจํ‚ค์ง€์— ๋Œ€ํ•ด ๋ฐฐ์šด๋‹ค๋ฉด, ์ŠคํŽ ์€ ๊ฐ™์ง€๋งŒ ๋™์ผํ•˜์ง€๋Š” ์•Š๋Š” ์‹ฌ๋ณผ ์ด๋ฆ„์„ ๋งŒ๋“ค ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค. ์ง€๊ธˆ ์•Œ์•„์•ผ ํ• ๊ฒƒ์€ <code>:</code> ๋กœ ๊ธฐ์ˆ ๋œ ์‹ฌ๋ณผ์€ ํŠน๋ณ„ํ•˜๊ฒŒ ์ทจ๊ธ‰ํ•œ๋‹ค ๋ผ๋Š” ๊ฒƒ์ž…๋‹ˆ๋‹ค.</p>
<h2 id="์‹ฌ๋ณผ๋กœ-๊ฐ’์—-์ด๋ฆ„-๋ถ™์ผ-์ˆ˜-์žˆ๋‹ค"><a class="header" href="#์‹ฌ๋ณผ๋กœ-๊ฐ’์—-์ด๋ฆ„-๋ถ™์ผ-์ˆ˜-์žˆ๋‹ค">์‹ฌ๋ณผ๋กœ ๊ฐ’์— ์ด๋ฆ„ ๋ถ™์ผ ์ˆ˜ ์žˆ๋‹ค.</a></h2>
<p>์‹ฌ๋ณผ์˜ ์ž๊ธฐ ์ž์‹ ์„ ํ‘œํ˜„ํ•˜๋Š” ๋Šฅ๋ ฅ ์—ญ์‹œ ์œ ์šฉํ•˜์ง€๋งŒ, ๋”์šฑ ์ผ๋ฐ˜์ ์œผ๋กœ ์‚ฌ์šฉ๋˜๋Š” ๊ณณ์€ ๊ฐ’์˜ ์ด๋ฆ„์„ ๋ถ™์ผ ๋•Œ์ž…๋‹ˆ๋‹ค. ์ด๋Š” ๋‹ค๋ฅธ ํ”„๋กœ๊ทธ๋ž˜๋ฐ ์–ธ์–ด์—์„œ ๋ณ€์ˆ˜์™€ ํ•จ์ˆ˜ ์ด๋ฆ„์˜ ์—ญํ™œ์„ ๋งก์Šต๋‹ˆ๋‹ค. ๋ฆฌ์Šคํ”„ ์‹ฌ๋ณผ์€ ๊ฐ’์˜ ์ด๋ฆ„์ด๋‚˜, ํ•จ์ˆ˜์˜ ์ด๋ฆ„์„ ์ง€์„๋•Œ ์‚ฌ์šฉ๋ฉ๋‹ˆ๋‹ค.</p>
<p>๋ฆฌ์Šคํ”„์—์„œ ํŠน์ดํ•œ ์  ์ค‘ ํ•˜๋‚˜๋Š” ์‹ฌ๋ณผ์€ ํ•จ์ˆ˜๋ž‘ ๋ณ€์ˆ˜์˜ ๊ฐ’์„ ๋™์‹œ์— ์ง€๋‹ ์ˆ˜ ์žˆ๋‹ค ๋ผ๋Š” ์  ์ž…๋‹ˆ๋‹ค:</p>
<pre><code class="language-lisp">(setq first 'number-one)
;;=&gt; NUMBER-ONE

(first (list 3 2 1))
;;=&gt; 3

first
;;=&gt; NUMBER-ONE
</code></pre>
<p>์ฒซ๋ฒˆ์งธ์™€ ๋งˆ์ง€๋ง‰ ๊ฒฝ์šฐ์—์„œ์˜ <code>first</code>๋Š” <em>๋ณ€์ˆ˜</em> ์ด๋ฉฐ , ๋‘๋ฒˆ์งธ์ธ ๊ฒฝ์šฐ๋Š” ๋ฆฌ์Šคํ”„์— ์˜ํ•ด ๋ฏธ๋ฆฌ ์ •์˜๋œ <em>ํ•จ์ˆ˜</em> ๋ผ๋Š” ์ ์„ ์ฃผ์˜๊นŠ๊ฒŒ ๋ณด์‹œ๊ธธ ๋ฐ”๋ž๋‹ˆ๋‹ค. ๋ฆฌ์Šคํ”„๋Š” ์‹ฌ๋ณผ์ด ๋ณด์ด๋Š” ๊ณณ์— ๊ธฐ๋ฐ˜ํ•˜์—ฌ ์ด ๊ฐ’์ด ๋ฌด์—‡์ธ์ง€ ๊ฒฐ์ •ํ•ฉ๋‹ˆ๋‹ค. ํ‰๊ฐ€ ๊ทœ์น™์— ๋”ฐ๋ผ ๊ฐ’์„ ์š”์ฒญ๋ฐ›์œผ๋ฉด, ๋ฆฌ์Šคํ”„๋Š” ์‹ฌ๋ณผ์˜ ๋ณ€์ˆ˜ ๊ฐ’์„ ์ฐพ์Šต๋‹ˆ๋‹ค. ํ•จ์ˆ˜๋ฅผ ์š”์ฒญ๋ฐ›์œผ๋ฉด, ๋ฆฌ์Šคํ”„๋Š” ์‹ฌ๋ณผ์˜ ํ•จ์ˆ˜ ๊ฐ’์„ ์ฐพ์Šต๋‹ˆ๋‹ค.</p>
<p>์‹ฌ๋ณผ์€ ๋ณ€์ˆ˜๋‚˜ ํ•จ์ˆ˜์˜ ๊ฐ’ ์™ธ์— ๋‹ค๋ฅธ ๊ฐ’์„ ๊ฐ€์งˆ ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค. ์‹ฌ๋ณผ์€ ๋ฌธ์„œ, ํ”„๋กœํผํ‹ฐ ๋ฆฌ์ŠคํŠธ(property list) ํ˜น์€ ์ถœ๋ ฅ์— ๋Œ€ํ•œ ์ด๋ฆ„ ๊ฐ’๋„ ๊ฐ€์งˆ ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค. ์‹ฌ๋ณผ์˜ ๋ฌธ์„œ๋Š” ์‹ฌ๋ณผ์˜ ์„ค๋ช…์„ ์œ„ํ•œ ํ…์ŠคํŠธ์ž…๋‹ˆ๋‹ค. <code>documentation</code> ํผ์„ ์ด์šฉํ•˜๊ฑฐ๋‚˜ ์‹ฌ๋ณผ์˜ ๊ฐ’์„ ์ •์˜ํ•˜๋Š” ๋ช‡๋ช‡ ํผ์—์„œ ๋ฌธ์„œ๋ฅผ ๋งŒ๋“ค ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค. ์‹ฌ๋ณผ์€ ๋‹ค์–‘ํ•œ ์˜๋ฏธ๋ฅผ ๊ฐ€์งˆ ์ˆ˜ ์žˆ์œผ๋ฏ€๋กœ ํ•จ์ˆ˜ ๋ฐ ๋ณ€์ˆ˜์™€ ๊ฐ™์ด ์—ฌ๋Ÿฌ ๊ฐ€์ง€ ์˜๋ฏธ ๊ฐ๊ฐ์— ๋Œ€ํ•œ ๋ฌธ์„œ๋ฅผ ๋งŒ๋“ค ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค.</p>
<p>ํ”„๋กœํผํ‹ฐ ๋ฆฌ์ŠคํŠธ๋Š” ์—”ํŠธ๋ฆฌ(entry)๋‹น ํ•˜๋‚˜์˜ ํ‚ค๋ฅผ ์ง€๋‹Œ ์ž๊ทธ๋งˆํ•œ ๋ฐ์ดํ„ฐ ๋ฒ ์ด์Šค์™€ ๊ฐ™์Šต๋‹ˆ๋‹ค. ๋ ˆ์Šจ 10 [p 65]์—์„œ ์ด๋Ÿฌํ•œ ์‹ฌ๋ณผ์˜ ์‚ฌ์šฉ๋ฒ•์„ ์‚ดํŽด๋ณผ ๊ฒƒ์ž…๋‹ˆ๋‹ค.</p>
<p>์ถœ๋ ฅ ์ด๋ฆ„์€ ๋ฆฌ์Šคํ”„์—์„œ ์‹ฌ๋ณผ์„ ์ถœ๋ ฅํ•˜๊ธฐ ์œ„ํ•ด ์‚ฌ์šฉํ•˜๋Š” ๊ฒƒ์ž…๋‹ˆ๋‹ค. ์ผ๋ฐ˜์ ์œผ๋กœ ์ด ์ด๋ฆ„์„ ๋ณ€๊ฒฝํ•˜์ง€ ์•Š๋Š”๊ฒŒ ์ข‹์Šต๋‹ˆ๋‹ค; ๋ณ€๊ฒฝํ•œ๋‹ค๋ฉด, ๋‚˜์ค‘์— ๋ฆฌ์Šคํ”„๊ฐ€ ์‹ฌ๋ณผ์„ ์ฝ๊ณ  ๋‹ค๋ฅธ ์ด๋ฆ„์œผ๋กœ ์ถœ๋ ฅํ•˜๊ธฐ์— ํ˜น์—ฌ ๋‹ค์‹œ ๋ฆฌ์Šคํ”„๊ฐ€ ๊ทธ ์ด๋ฆ„์„ ์ฝ์„๋•Œ ์›๋ž˜ ์‹ฌ๋ณผ๊ฐ’๊ณผ ๋‹ค๋ฅธ ์˜๋ฏธ๋ฅผ ์ง€๋…€ ํ˜ผ๋ž€์„ ์•ผ๊ธฐํ•  ๊ฒƒ์ž…๋‹ˆ๋‹ค.</p>
<h2 id="๊ฐ’์€-ํ•˜๋‚˜-์ด์ƒ์˜-์ด๋ฆ„์„-๊ฐ€์งˆ-์ˆ˜-์žˆ๋‹ค"><a class="header" href="#๊ฐ’์€-ํ•˜๋‚˜-์ด์ƒ์˜-์ด๋ฆ„์„-๊ฐ€์งˆ-์ˆ˜-์žˆ๋‹ค">๊ฐ’์€ ํ•˜๋‚˜ ์ด์ƒ์˜ ์ด๋ฆ„์„ ๊ฐ€์งˆ ์ˆ˜ ์žˆ๋‹ค</a></h2>
<p>๊ฐ’์€ ํ•˜๋‚˜ ์ด์ƒ์˜ ์ด๋ฆ„์„ ๊ฐ€์งˆ ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค. ์ฆ‰, ํ•˜๋‚˜ ์ด์ƒ์˜ ์‹ฌ๋ณผ์ด ๊ฐ’์„ ๊ณต์œ ํ•  ์ˆ˜ ์žˆ๋‹ค๋Š” ๊ฒƒ์ž…๋‹ˆ๋‹ค. ๋‹ค๋ฅธ ์–ธ์–ด์—์„œ ์ด๋Ÿฌํ•œ ๋ฐฉ์‹์œผ๋กœ ๋™์ž‘ํ•˜๋Š” ๊ฒƒ์œผ๋กœ๋Š” ํฌ์ธํ„ฐ๊ฐ€ ์žˆ์Šต๋‹ˆ๋‹ค. ๋ฆฌ์Šคํ”„๋Š” ํ”„๋กœ๊ทธ๋ž˜๋จธ์—๊ฒŒ ํฌ์ธํ„ฐ๋ฅผ ๋…ธ์ถœํ•˜์ง€ ์•Š์ง€๋งŒ, ๊ณต์œ  ์˜ค๋ธŒ์ ํŠธ๋Š” ์žˆ์Šต๋‹ˆ๋‹ค. <code>eq</code> ํ…Œ์ŠคํŠธ๋กœ ์˜ค๋ธŒ์ ํŠธ๊ฐ€ ์„œ๋กœ ๊ฐ™์€์ง€ ํ™•์ธํ•  ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค. ๋‹ค์Œ์— ๋‚˜์˜ค๋Š” ๊ฒƒ์„ ์‚ดํŽด๋ณด์‹œ๊ธฐ ๋ฐ”๋ž๋‹ˆ๋‹ค:</p>
<pre><code class="language-lisp">(setq L1 (list 'a 'b 'c))
;;=&gt; (A B C)

(setq L2 L1)
;;=&gt; (A B C)

(eq L1 L2)
;;=&gt; T

(setq L3 (list 'a 'b 'c))
;;=&gt; (A B C)

(eq L3 L1)
;;=&gt; NIL
</code></pre>
<p>์—ฌ๊ธฐ์„œ, ๋™์ผํ•œ ๊ฐ’์„ <code>L1</code>๊ณผ <code>L2</code>๋ผ ์ด๋ฆ„์ง€์—‡๊ธฐ์—, <code>L1</code>๊ณผ <code>L2</code>๋Š” <code>eq</code>ํ•ฉ๋‹ˆ๋‹ค. ๋‹ค์‹œ ๋งํ•˜์ž๋ฉด <code>(list 'a 'b 'c)</code> ํผ์— ์˜ํ•ด ์ƒ์„ฑ๋œ ๊ฐ’์€ <code>L1</code>๊ณผ <code>L2</code> ๋‘๊ฐœ์˜ ์ด๋ฆ„์„ ๊ฐ–์Šต๋‹ˆ๋‹ค. <code>(setq L2 L1)</code> ํผ์€ &quot;L2์˜ ๊ฐ’์ด L1์˜ ๊ฐ’์ด ๋˜๋„๋ก ํ•ด๋ผ&quot; ๋ผ๊ณ  ์ง€์‹œํ•ฉ๋‹ˆ๋‹ค. ๊ฐ’์˜ ๋ณต์‚ฌ๋ฅผ ๋ง ํ•˜๋Š”๊ฒŒ ์•„๋‹ˆ๋ผ, ๊ฐ’ ๊ทธ ์ž์ฒด๋ฅผ ์ง€์นญํ•ฉ๋‹ˆ๋‹ค. ๋”ฐ๋ผ์„œ <code>L1</code>๊ณผ <code>L2</code>๋Š” ๋™์ผํ•œ ๊ฐ’ (์ฒ˜์Œ <code>L1</code>์— ํ• ๋‹น๋œ ๋ฆฌ์ŠคํŠธ <code>(A B C)</code>)์„ ๊ณต์œ ํ•ฉ๋‹ˆ๋‹ค.</p>
<p>๋˜ํ•œ <code>L3</code>๋„ ๋ฆฌ์ŠคํŠธ <code>(A B C)</code>๋ฅผ ๊ฐ’์œผ๋กœ ๊ฐ–์ง€๋งŒ, ์ด๋Š” <code>L1</code>๊ณผ <code>L2</code>๊ฐ€ ๊ณต์œ ํ•˜๋Š” ๊ฒƒ๊ณผ๋Š” ๋‹ค๋ฅธ ์ƒˆ๋กœ์šด ๋ฆฌ์ŠคํŠธ ์ž…๋‹ˆ๋‹ค. ๋น„๋ก <code>L3</code>์˜ ๊ฐ’์ด <code>L1</code>๊ณผ <code>L2</code>์˜ ๊ฐ’๊ณผ ๋™์ผํ•œ ๊ฒƒ์ฒ˜๋Ÿผ ๋ณด์ด์ง€๋งŒ, ๋‹ค๋ฅธ <code>list</code> ํผ์— ์˜ํ•ด ์ƒ์„ฑ๋˜์—ˆ๊ธฐ์—, ์ด๋Š” ๋‹ค๋ฅธ ๋ฆฌ์ŠคํŠธ์ž…๋‹ˆ๋‹ค. ๋”ฐ๋ผ์„œ, ์„œ๋กœ ์‹ฌ๋ณผ <code>A</code>, <code>B</code>, <code>C</code>๋กœ ๊ตฌ์„ฑ๋œ ๋ฆฌ์ŠคํŠธ์ด์ง€๋งŒ, ๋‹ค๋ฅธ ๋ฆฌ์ŠคํŠธ์ด๊ธฐ์—, <code>(eq L3 L1)</code>๋Š” <code>NIL</code>์ด ๋ฉ๋‹ˆ๋‹ค.</p>
<h2 id="์งš๊ณ -๋„˜์–ด๊ฐ€๊ธฐ"><a class="header" href="#์งš๊ณ -๋„˜์–ด๊ฐ€๊ธฐ">์งš๊ณ  ๋„˜์–ด๊ฐ€๊ธฐ</a></h2>
<ul>
<li><code>eq</code></li>
</ul>

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Expand Up @@ -180,14 +180,11 @@ <h1 class="menu-title">Successful Lisp - ํ•œ๊ตญ์–ดํŒ</h1>
<main>
<h1 id="๋“ค์–ด๊ฐ€๋ฉฐ"><a class="header" href="#๋“ค์–ด๊ฐ€๋ฉฐ">๋“ค์–ด๊ฐ€๋ฉฐ</a></h1>
<p>successful Lisp์˜ 3์žฅ - 12๊ฐœ์˜ ๋ ˆ์Šจ์œผ๋กœ ๋ฐฐ์šฐ๋Š” ํ•„์ˆ˜ ๋ฆฌ์Šคํ”„ ๋ฒˆ์—ญ๋ณธ์ž…๋‹ˆ๋‹ค.</p>
<h2 id="ref"><a class="header" href="#ref">Ref</a></h2>
<ul>
<li><a href="https://dept-info.labri.fr/~strandh/Teaching/MTP/Common/David-Lamkins/contents.html">https://dept-info.labri.fr/~strandh/Teaching/MTP/Common/David-Lamkins/contents.html</a>
<ul>
<li><a href="https://github.com/TieDyedDevil">https://github.com/TieDyedDevil</a></li>
</ul>
</li>
</ul>
<p>๋‹ค๋น„๋“œ ๋ผํ‚จ์Šค, ๋ฒˆ์—ญ์„ ํ—ˆ๋ฝํ•ด์ฃผ์…”์„œ ๊ฐ์‚ฌํ•ฉ๋‹ˆ๋‹ค. ๊ทธ์˜ ์›น์‚ฌ์ดํŠธ๋Š” <a href="http://lamkins.net">http://lamkins.net</a> ์ž…๋‹ˆ๋‹ค.
๊ทธ์˜ github๋Š” <a href="https://github.com/TieDyedDevil">https://github.com/TieDyedDevil</a>์ด๋ฉฐ ๊ทธ์˜ ์ฑ…์˜ ์›๋ฌธ์€ ์†Œ์Šค์ฝ”๋“œ๋Š” <a href="https://dept-info.labri.fr/~strandh/Teaching/MTP/Common/David-Lamkins/contents.html">์ด๊ณณ</a>์—์„œ ๋ณผ ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค. Successful Lisp์˜ ์ €์ž‘๊ถŒ์€ David Lamkins์—๊ฒŒ ์žˆ์Šต๋‹ˆ๋‹ค.</p>
<p>David Lamkins, Thank you for allowing me to translate your book. His personnal website is <a href="http://lamkins.net">http://lamkins.net</a>
His github is <a href="https://github.com/TieDyedDevil">https://github.com/TieDyedDevil</a> then His original book is <a href="https://dept-info.labri.fr/~strandh/Teaching/MTP/Common/David-Lamkins/contents.html">here</a>.
and David Lamkins owns Successful Lisp's copyright.</p>

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