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<article role="main" id="furo-main-content">
<section id="regular-expressions">
<span id="id1"></span><h1>정규 표현식<a class="headerlink" href="#regular-expressions" title="Link to this heading">¶</a></h1>
<p><a class="reference external" href="https://en.wikipedia.org/wiki/Regular_expression">정규 표현식</a> 은 텍스트에서 특정 패턴이 나타나는지 여부를 판단하는 데 사용할 수 있는 문자열의 패턴을 설명합니다.</p>
<p>TreeSize에서는 정규식을 사용하여 정규식으로 지정된 조건과 일치하는 특정 파일 및/또는 폴더를 찾을 수 있습니다. ` 특수 문자 목록 <<a class="reference external" href="https://www.jam-software.com/redirects/?regex_syntax_info">https://www.jam-software.com/redirects/?regex_syntax_info</a>>`_ 이 지원됩니다.</p>
<p>다음 표에는 가장 많이 사용되는 구문과 몇 가지 예가 나와 있습니다:</p>
<div class="table-wrapper colwidths-given docutils container">
<table class="docutils align-default">
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<thead>
<tr class="row-odd"><th class="head"><p>표현식</p></th>
<th class="head"><p>구문</p></th>
<th class="head"><p>설명</p></th>
<th class="head"><p>예</p></th>
</tr>
</thead>
<tbody>
<tr class="row-even"><td><p>모든 캐릭터</p></td>
<td><p><code class="docutils literal notranslate"><span class="pre">.</span></code></p></td>
<td><p>줄 바꿈을 제외한 모든 단일 문자를 일치시킵니다.</p></td>
<td><p><code class="docutils literal notranslate"><span class="pre">a.o</span></code> 는 ‘around’의 ‘aro’와 ‘about’의 ‘abo’와 일치하지만 ‘across’의 ‘acro’와는 일치하지 않습니다.</p></td>
</tr>
<tr class="row-odd"><td><p>0 이상</p></td>
<td><p><code class="docutils literal notranslate"><span class="pre">*</span></code></p></td>
<td><p>앞의 표현식이 0개 이상 일치하는 경우, 가능한 모든 일치 항목을 만듭니다.</p></td>
<td><p><code class="docutils literal notranslate"><span class="pre">a*b</span></code> 는 “bat” 의 “b” 및 “about” 의 “ab” 와 일치합니다. 는 “enterprise” 라는 단어와 일치합니다 <code class="docutils literal notranslate"><span class="pre">e.*e*</span></code>.</p></td>
</tr>
<tr class="row-even"><td><p>하나 이상의</p></td>
<td><p><code class="docutils literal notranslate"><span class="pre">+</span></code></p></td>
<td><p>앞의 표현식과 적어도 한 번 이상 일치합니다.</p></td>
<td><p><code class="docutils literal notranslate"><span class="pre">ac+</span></code> 는 문자 “a” 와 “c” 가 하나 이상 포함된 단어(예: “race” 및 “ace” )와 일치합니다. 는 “access” 라는 단어와 일치합니다 <code class="docutils literal notranslate"><span class="pre">a.+s</span></code>.</p></td>
</tr>
<tr class="row-odd"><td><p>문자열 시작</p></td>
<td><p><code class="docutils literal notranslate"><span class="pre">^</span></code></p></td>
<td><p>문자열의 시작 부분을 일치시킵니다.</p></td>
<td><p><code class="docutils literal notranslate"><span class="pre">^[0-9]</span></code> 는 숫자로 시작하는 문자열과 일치합니다.</p></td>
</tr>
<tr class="row-even"><td><p>문자열 끝</p></td>
<td><p><code class="docutils literal notranslate"><span class="pre">$</span></code></p></td>
<td><p>문자열의 끝을 일치시킵니다.</p></td>
<td><p><code class="docutils literal notranslate"><span class="pre">exe$</span></code> 는 “exe”로 끝나는 문자열과 일치합니다.</p></td>
</tr>
<tr class="row-odd"><td><p>단어의 시작</p></td>
<td><p><code class="docutils literal notranslate"><span class="pre">[[:<:]]</span></code></p></td>
<td><p>텍스트의 이 지점에서 단어가 시작될 때만 일치합니다.</p></td>
<td><p><code class="docutils literal notranslate"><span class="pre">[[:<:]]in</span></code> 은 ‘in’으로 시작하는 ‘inside’, ‘into’ 등의 단어와 일치합니다.</p></td>
</tr>
<tr class="row-even"><td><p>단어 끝</p></td>
<td><p><code class="docutils literal notranslate"><span class="pre">[[:>:]]</span></code></p></td>
<td><p>단어가 텍스트에서 이 지점에서 끝날 때만 일치합니다.</p></td>
<td><p><code class="docutils literal notranslate"><span class="pre">ss[[:>:]]</span></code> 는 ‘ss’로 끝나는 ‘across’, ‘loss’와 같은 단어와 일치합니다.</p></td>
</tr>
<tr class="row-odd"><td><p>세트의 모든 캐릭터</p></td>
<td><p><code class="docutils literal notranslate"><span class="pre">[]</span></code></p></td>
<td><p>[] 안에 있는 문자 중 하나에 일치합니다. 문자 범위를 지정하려면 [a-z]와 같이 시작 문자와 끝 문자를 대시(-)로 구분하여 나열합니다.</p></td>
<td><p><code class="docutils literal notranslate"><span class="pre">be[n-t]</span></code> 는 ‘사이’의 ‘bet’, ‘아래’의 ‘ben’, ‘옆’의 ‘bes’와 일치하지만 ‘아래’의 ‘bel’과는 일치하지 않습니다.</p></td>
</tr>
<tr class="row-even"><td><p>세트에 없는 문자 하나</p></td>
<td><p><code class="docutils literal notranslate"><span class="pre">[^...]</span></code></p></td>
<td><p>뒤에 오는 <code class="docutils literal notranslate"><span class="pre">^</span></code> 문자 집합에 없는 문자를 일치시킵니다.</p></td>
<td><p><code class="docutils literal notranslate"><span class="pre">be[^n-t]</span></code> 는 ‘before’의 ‘bef’, ‘behind’의 ‘beh’, ‘below’의 ‘bel’과 일치하지만 ‘beneath’의 ‘ben’과는 일치하지 않습니다.</p></td>
</tr>
<tr class="row-odd"><td><p>또는</p></td>
<td><p><code class="docutils literal notranslate"><span class="pre">|</span></code></p></td>
<td><p>OR 기호(|) 앞의 표현식 또는 뒤의 표현식과 일치합니다. 주로 그룹에서 사용됩니다.</p></td>
<td><p><code class="docutils literal notranslate"><span class="pre">(스펀지|진흙)</span></code> 는 ‘스펀지 목욕’과 ‘진흙 목욕’과 일치합니다.</p></td>
</tr>
<tr class="row-even"><td><p>이스케이프 문자</p></td>
<td><p><code class="docutils literal notranslate"><span class="pre">\</span></code></p></td>
<td><p>백슬래시(<code class="docutils literal notranslate"><span class="pre">\</span></code>) 다음의 문자를 리터럴로 매칭합니다. 이를 통해 <code class="docutils literal notranslate"><span class="pre">{</span></code> 및 <code class="docutils literal notranslate"><span class="pre">^</span></code> 와 같은 정규 표현식 기호를 찾을 수 있습니다.</p></td>
<td><p><code class="docutils literal notranslate"><span class="pre">\^</span></code> 는 <code class="docutils literal notranslate"><span class="pre">^</span></code> 문자를 검색합니다.</p></td>
</tr>
<tr class="row-odd"><td><p>N회 반복</p></td>
<td><p><code class="docutils literal notranslate"><span class="pre">{n}</span></code></p></td>
<td><p>앞의 표현식과 일치하는 개수 n 개를 일치시킵니다.</p></td>
<td><p><code class="docutils literal notranslate"><span class="pre">[0-9]{4}</span></code> 는 4자리 시퀀스와 일치합니다.</p></td>
</tr>
<tr class="row-even"><td><p>그룹화</p></td>
<td><p><code class="docutils literal notranslate"><span class="pre">()</span></code></p></td>
<td><p>표현식 집합을 함께 그룹화할 수 있습니다. 한 번의 검색으로 두 개의 서로 다른 표현식을 검색하려는 경우 그룹화 표현식을 사용하여 결합할 수 있습니다.</p></td>
<td><p><code class="docutils literal notranslate"><span class="pre">[a-z][1-3]</span></code> 또는 <code class="docutils literal notranslate"><span class="pre">[0-9][a-z]</span></code> 를 검색하려면 이를 조합하면 됩니다: <code class="docutils literal notranslate"><span class="pre">([a-z][1-3])|([0-9][a-z])</span></code>.</p></td>
</tr>
</tbody>
</table>
</div>
<section id="more-examples">
<h2>더 많은 예제<a class="headerlink" href="#more-examples" title="Link to this heading">¶</a></h2>
<div class="table-wrapper colwidths-given docutils container">
<table class="docutils align-default">
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<tr class="row-odd"><th class="head"><p>정규 표현식</p></th>
<th class="head"><p>사용 사례</p></th>
</tr>
</thead>
<tbody>
<tr class="row-even"><td><p><code class="docutils literal notranslate"><span class="pre">[0-9]</span></code> 또는 <code class="docutils literal notranslate"><span class="pre">\d</span></code></p></td>
<td><p>이름에 숫자가 한 자리 이상 포함된 모든 파일/폴더를 찾습니다.</p></td>
</tr>
<tr class="row-odd"><td><p><code class="docutils literal notranslate"><span class="pre">a|b</span></code></p></td>
<td><p>이름에 “a” 또는 “b”가 포함된 모든 파일/폴더를 찾습니다.</p></td>
</tr>
<tr class="row-even"><td><p><code class="docutils literal notranslate"><span class="pre">[^(A-Za-z)]</span></code></p></td>
<td><p>이름에 A-Z 또는 a-z 범위에 속하지 않는 문자가 하나 이상 포함된 모든 파일/폴더를 찾습니다.</p></td>
</tr>
<tr class="row-odd"><td><p><code class="docutils literal notranslate"><span class="pre">^E[0-9]{7}$</span></code></p></td>
<td><p>‘E’로 시작하고 그 뒤에 정확히 7자리 숫자가 오는 모든 파일/폴더를 찾습니다.</p></td>
</tr>
<tr class="row-even"><td><p><code class="docutils literal notranslate"><span class="pre">[A-Za-z]:\\([^\\]+\\){2,4}[^\\]+$</span></code></p></td>
<td><p>폴더 깊이가 최소 2에서 최대 4인 모든 파일/폴더를 찾습니다.</p></td>
</tr>
<tr class="row-odd"><td><p><code class="docutils literal notranslate"><span class="pre">[^\x00-\x7F]</span></code></p></td>
<td><p>잘못된 ASCII 문자가 있는 모든 파일/폴더를 찾습니다.</p></td>
</tr>
<tr class="row-even"><td><p><code class="docutils literal notranslate"><span class="pre">[^\P{C}]</span></code></p></td>
<td><p>인쇄할 수 없는 유니코드 문자가 있는 모든 파일/폴더를 찾습니다.</p></td>
</tr>
<tr class="row-odd"><td><p><code class="docutils literal notranslate"><span class="pre">[\xA0]</span></code></p></td>
<td><p>일반 공백 문자 대신 깨지지 않는 공백 문자(유니코드 NOBR, U+00A0)가 포함된 모든 파일/폴더 이름을 찾습니다.</p></td>
</tr>
<tr class="row-even"><td><p><code class="docutils literal notranslate"><span class="pre">[~\""#%&\*\:<>\?\/\\{|}]</span></code></p></td>
<td><p>SharePoint 서버에서 유효하지 않은 문자가 포함된 모든 파일 및 폴더 이름을 찾습니다.</p></td>
</tr>
<tr class="row-odd"><td><p><code class="docutils literal notranslate"><span class="pre">^\s+.*</span></code></p></td>
<td><p>선행 공백이 있는 모든 파일과 폴더를 찾습니다.</p></td>
</tr>
<tr class="row-even"><td><p><code class="docutils literal notranslate"><span class="pre">\s+(\.[^.]+)$</span></code></p></td>
<td><p>이름 끝에 후행 공백이 있는 확장자를 가진 파일을 찾습니다.</p></td>
</tr>
<tr class="row-odd"><td><p><code class="docutils literal notranslate"><span class="pre">.*\s+$</span></code></p></td>
<td><p>폴더 이름 끝에 공백이 있는 폴더를 찾습니다.</p></td>
</tr>
</tbody>
</table>
</div>
</section>
<section id="tools-for-creating-regular-expressions">
<h2>정규 표현식을 만들기 위한 도구<a class="headerlink" href="#tools-for-creating-regular-expressions" title="Link to this heading">¶</a></h2>
<p><a class="reference external" href="https://regex101.com">https://regex101.com</a>/(온라인)</p>
<p><a class="reference external" href="http://regexpal.com">http://regexpal.com</a>/(온라인)</p>
<p><a class="reference external" href="http://sourceforge.net/projects/regexpeditor/">http://sourceforge.net/projects/regexpeditor/</a> (다운로드)</p>
<p><a class="reference external" href="http://sourceforge.net/projects/regextester/">http://sourceforge.net/projects/regextester/</a> (다운로드)</p>
<p><a class="reference external" href="http://sourceforge.net/projects/regaxe/">http://sourceforge.net/projects/regaxe/</a> (다운로드)</p>
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