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class="search-box"><input type="hidden" name="title" value="특수:검색"> <input class="search skin-minerva-search-trigger" id="searchInput" type="search" name="search" placeholder="위키백과 검색" aria-label="위키백과 검색" autocapitalize="sentences" title="위키백과 검색 [f]" accesskey="f"> </div><button id="searchIcon" class="cdx-button cdx-button--size-large cdx-button--icon-only cdx-button--weight-quiet skin-minerva-search-trigger"> 검색 </button> </form> <nav class="minerva-user-navigation" aria-label="사용자 둘러보기"> </nav> </div> </header> <main id="content" class="mw-body"> <div class="banner-container"> <div id="siteNotice">  </div> </div> <div class="pre-content heading-holder"> <div class="page-heading"> <h1 id="firstHeading" class="firstHeading mw-first-heading">정규 표현식</h1> <div class="tagline"> 집합을 표현하는 데 사용하는 형식 언어 </div> </div> <nav class="page-actions-menu"> <ul id="p-views" class="page-actions-menu__list"> <li id="language-selector" class="page-actions-menu__list-item"><a role="button" href="https://ko-m-wikipedia-org.translate.goog/wiki/%EC%A0%95%EA%B7%9C_%ED%91%9C%ED%98%84%EC%8B%9D?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB#p-lang" data-mw="interface" data-event-name="menu.languages" title="언어" class="cdx-button cdx-button--size-large cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--icon-only cdx-button--weight-quiet language-selector"> 언어 </a></li> <li id="page-actions-watch" class="page-actions-menu__list-item"><a role="button" id="ca-watch" href="https://ko-m-wikipedia-org.translate.goog/w/index.php?title=%ED%8A%B9%EC%88%98:%EB%A1%9C%EA%B7%B8%EC%9D%B8&returnto=%EC%A0%95%EA%B7%9C+%ED%91%9C%ED%98%84%EC%8B%9D&_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" data-event-name="menu.watch" class="cdx-button cdx-button--size-large cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--icon-only cdx-button--weight-quiet menu__item--page-actions-watch"> 주시 </a></li> <li id="page-actions-edit" class="page-actions-menu__list-item"><a role="button" id="ca-edit" href="https://ko-m-wikipedia-org.translate.goog/w/index.php?title=%EC%A0%95%EA%B7%9C_%ED%91%9C%ED%98%84%EC%8B%9D&action=edit&_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" data-event-name="menu.edit" data-mw="interface" class="cdx-button cdx-button--size-large cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--icon-only cdx-button--weight-quiet edit-page menu__item--page-actions-edit"> 편집 </a></li> </ul> </nav> <div id="mw-content-subtitle"></div> </div> <div id="bodyContent" class="content"> <div id="mw-content-text" class="mw-body-content"> <script>function mfTempOpenSection(id){var block=document.getElementById("mf-section-"+id);block.className+=" open-block";block.previousSibling.className+=" open-block";}</script> <div class="mw-content-ltr mw-parser-output" lang="ko" dir="ltr"> <section class="mf-section-0" id="mf-section-0"> 정규 표현식(正規表現式, <a href="https://ko-m-wikipedia-org.translate.goog/wiki/%EC%98%81%EC%96%B4?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="영어">영어</a>: regular expression, 간단히 regexp<a href="https://ko-m-wikipedia-org.translate.goog/wiki/%EC%A0%95%EA%B7%9C_%ED%91%9C%ED%98%84%EC%8B%9D?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB#cite_note-1">[1]</a> 또는 regex, rational expression)<a href="https://ko-m-wikipedia-org.translate.goog/wiki/%EC%A0%95%EA%B7%9C_%ED%91%9C%ED%98%84%EC%8B%9D?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB#cite_note-Mitkov2003-2">[2]</a><a href="https://ko-m-wikipedia-org.translate.goog/wiki/%EC%A0%95%EA%B7%9C_%ED%91%9C%ED%98%84%EC%8B%9D?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB#cite_note-Lawson2003-3">[3]</a> 또는 정규식(正規式)은 특정한 규칙을 가진 문자열의 집합을 표현하는 데 사용하는 <a href="https://ko-m-wikipedia-org.translate.goog/wiki/%ED%98%95%EC%8B%9D_%EC%96%B8%EC%96%B4?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="형식 언어">형식 언어</a>이다. 정규 표현식은 많은 <a href="https://ko-m-wikipedia-org.translate.goog/wiki/%ED%85%8D%EC%8A%A4%ED%8A%B8_%ED%8E%B8%EC%A7%91%EA%B8%B0?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" class="mw-redirect" title="텍스트 편집기">텍스트 편집기</a>와 <a href="https://ko-m-wikipedia-org.translate.goog/wiki/%ED%94%84%EB%A1%9C%EA%B7%B8%EB%9E%98%EB%B0%8D_%EC%96%B8%EC%96%B4?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="프로그래밍 언어">프로그래밍 언어</a>에서 문자열의 검색과 치환을 위해 지원하고 있으며, 특히 <a href="https://ko-m-wikipedia-org.translate.goog/wiki/%ED%8E%84?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="펄">펄</a>과 <a href="https://ko-m-wikipedia-org.translate.goog/wiki/Tcl?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="Tcl">Tcl</a>은 언어 자체에 강력한 정규 표현식을 구현하고 있다. <figure class="mw-default-size mw-halign-right" typeof="mw:File/Thumb"> <a href="https://ko-m-wikipedia-org.translate.goog/wiki/%ED%8C%8C%EC%9D%BC:The_river_effect_in_justified_text.jpg?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/2/23/The_river_effect_in_justified_text.jpg/220px-The_river_effect_in_justified_text.jpg" decoding="async" width="220" height="127" class="mw-file-element" srcset="https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=https://upload.wikimedia.org/wikipedia/commons/thumb/2/23/The_river_effect_in_justified_text.jpg/330px-The_river_effect_in_justified_text.jpg 1.5x,https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=https://upload.wikimedia.org/wikipedia/commons/thumb/2/23/The_river_effect_in_justified_text.jpg/440px-The_river_effect_in_justified_text.jpg 2x" data-file-width="875" data-file-height="504"></a> <figcaption> 노란색 강조 부분은 다음 정규식을 사용했을 때 매치된 것이다. <div class="mw-highlight mw-highlight-lang-ragel mw-content-ltr" dir="ltr"> <pre>(?<=\.) {2,}(?=[A-Z]) </pre> </div> </figcaption> </figure> <figure class="mw-default-size" typeof="mw:File/Thumb"> <a href="https://ko-m-wikipedia-org.translate.goog/wiki/%ED%8C%8C%EC%9D%BC:Kleene.jpg?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/1/1c/Kleene.jpg/220px-Kleene.jpg" decoding="async" width="220" height="313" class="mw-file-element" srcset="https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=https://upload.wikimedia.org/wikipedia/commons/thumb/1/1c/Kleene.jpg/330px-Kleene.jpg 1.5x,https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=https://upload.wikimedia.org/wikipedia/commons/thumb/1/1c/Kleene.jpg/440px-Kleene.jpg 2x" data-file-width="562" data-file-height="800"></a> <figcaption> <a href="https://ko-m-wikipedia-org.translate.goog/wiki/%EC%8A%A4%ED%8B%B0%EB%B8%90_%ED%81%B4%EB%A0%88%EC%9D%B4%EB%8B%88?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="스티븐 클레이니">스티븐 클레이니</a>는 정규 표현식의 개념을 설립한 공로자이다. </figcaption> </figure> 컴퓨터 과학의 <a href="https://ko-m-wikipedia-org.translate.goog/wiki/%EC%A0%95%EA%B7%9C_%EC%96%B8%EC%96%B4?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="정규 언어">정규 언어</a>로부터 유래하였으나 구현체에 따라서 정규 언어보다 더 넓은 언어를 표현할 수 있는 경우도 있으며, 심지어 정규 표현식 자체의 문법도 여러 가지 존재하고 있다. 현재 많은 <a href="https://ko-m-wikipedia-org.translate.goog/wiki/%ED%94%84%EB%A1%9C%EA%B7%B8%EB%9E%98%EB%B0%8D_%EC%96%B8%EC%96%B4?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="프로그래밍 언어">프로그래밍 언어</a>, 텍스트 처리 프로그램, 고급 텍스트 편집기 등이 정규 표현식 기능을 제공한다. 일부는 <a href="https://ko-m-wikipedia-org.translate.goog/wiki/%ED%8E%84?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="펄">펄</a>, <a href="https://ko-m-wikipedia-org.translate.goog/wiki/%EC%9E%90%EB%B0%94%EC%8A%A4%ED%81%AC%EB%A6%BD%ED%8A%B8?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="자바스크립트">자바스크립트</a>, <a href="https://ko-m-wikipedia-org.translate.goog/wiki/%EB%A3%A8%EB%B9%84_(%ED%94%84%EB%A1%9C%EA%B7%B8%EB%9E%98%EB%B0%8D_%EC%96%B8%EC%96%B4)?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="루비 (프로그래밍 언어)">루비</a>, <a href="https://ko-m-wikipedia-org.translate.goog/wiki/Tcl?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="Tcl">Tcl</a>처럼 문법에 내장되어 있는 반면 <a href="https://ko-m-wikipedia-org.translate.goog/wiki/%EB%8B%B7%EB%84%B7_%ED%94%84%EB%A0%88%EC%9E%84%EC%9B%8C%ED%81%AC?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="닷넷 프레임워크">닷넷 언어</a>, <a href="https://ko-m-wikipedia-org.translate.goog/wiki/%EC%9E%90%EB%B0%94_(%ED%94%84%EB%A1%9C%EA%B7%B8%EB%9E%98%EB%B0%8D_%EC%96%B8%EC%96%B4)?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="자바 (프로그래밍 언어)">자바</a>, <a href="https://ko-m-wikipedia-org.translate.goog/wiki/%ED%8C%8C%EC%9D%B4%EC%8D%AC?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="파이썬">파이썬</a>, <a href="https://ko-m-wikipedia-org.translate.goog/wiki/C_POSIX_%EB%9D%BC%EC%9D%B4%EB%B8%8C%EB%9F%AC%EB%A6%AC?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="C POSIX 라이브러리">POSIX C</a>, <a href="https://ko-m-wikipedia-org.translate.goog/wiki/C%2B%2B?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="C++">C++</a> (<a href="https://ko-m-wikipedia-org.translate.goog/wiki/C%2B%2B11?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="C++11">C++11</a> 이후)에서는 <a href="https://ko-m-wikipedia-org.translate.goog/wiki/%ED%91%9C%EC%A4%80_%EB%9D%BC%EC%9D%B4%EB%B8%8C%EB%9F%AC%EB%A6%AC?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="표준 라이브러리">표준 라이브러리</a>를 통해 제공한다. 그 밖의 대부분의 언어들은 별도의 라이브러리를 통해 정규 표현식을 제공한다. 정규 표현식은 <a href="https://ko-m-wikipedia-org.translate.goog/wiki/%EA%B2%80%EC%83%89_%EC%97%94%EC%A7%84?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="검색 엔진">검색 엔진</a>, <a href="https://ko-m-wikipedia-org.translate.goog/wiki/%EC%9B%8C%EB%93%9C_%ED%94%84%EB%A1%9C%EC%84%B8%EC%84%9C?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="워드 프로세서">워드 프로세서</a>와 <a href="https://ko-m-wikipedia-org.translate.goog/wiki/%EB%AC%B8%EC%84%9C_%ED%8E%B8%EC%A7%91%EA%B8%B0?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="문서 편집기">문서 편집기</a>의 찾아 바꾸기 대화상자, 그리고 <a href="https://ko-m-wikipedia-org.translate.goog/wiki/Sed?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" class="mw-redirect mw-disambig" title="Sed">sed</a>, <a href="https://ko-m-wikipedia-org.translate.goog/wiki/AWK?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="AWK">AWK</a>와 같은 문자 처리 유틸리티, <a href="https://ko-m-wikipedia-org.translate.goog/wiki/%EB%82%B1%EB%A7%90_%EB%B6%84%EC%84%9D?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="낱말 분석">어휘 분석</a>에 사용된다. <div id="toc" class="toc" role="navigation" aria-labelledby="mw-toc-heading"> <input type="checkbox" role="button" id="toctogglecheckbox" class="toctogglecheckbox" style="display:none"> <div class="toctitle" lang="ko" dir="ltr"> <h2 id="mw-toc-heading">목차</h2><label class="toctogglelabel" for="toctogglecheckbox"></label> </div> <ul> <li class="toclevel-1 tocsection-1"><a href="https://ko-m-wikipedia-org.translate.goog/wiki/%EC%A0%95%EA%B7%9C_%ED%91%9C%ED%98%84%EC%8B%9D?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB#%ED%8C%A8%ED%84%B4">1 패턴</a></li> <li class="toclevel-1 tocsection-2"><a href="https://ko-m-wikipedia-org.translate.goog/wiki/%EC%A0%95%EA%B7%9C_%ED%91%9C%ED%98%84%EC%8B%9D?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB#%EC%97%AD%EC%82%AC">2 역사</a></li> <li class="toclevel-1 tocsection-3"><a href="https://ko-m-wikipedia-org.translate.goog/wiki/%EC%A0%95%EA%B7%9C_%ED%91%9C%ED%98%84%EC%8B%9D?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB#%EA%B8%B0%EB%B3%B8_%EA%B0%9C%EB%85%90">3 기본 개념</a></li> <li class="toclevel-1 tocsection-4"><a href="https://ko-m-wikipedia-org.translate.goog/wiki/%EC%A0%95%EA%B7%9C_%ED%91%9C%ED%98%84%EC%8B%9D?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB#%EB%AC%B8%EB%B2%95">4 문법</a> <ul> <li class="toclevel-2 tocsection-5"><a href="https://ko-m-wikipedia-org.translate.goog/wiki/%EC%A0%95%EA%B7%9C_%ED%91%9C%ED%98%84%EC%8B%9D?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB#%EA%B5%AC%EB%B6%84_%EB%AC%B8%EC%9E%90">4.1 구분 문자</a></li> <li class="toclevel-2 tocsection-6"><a href="https://ko-m-wikipedia-org.translate.goog/wiki/%EC%A0%95%EA%B7%9C_%ED%91%9C%ED%98%84%EC%8B%9D?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB#%ED%91%9C%EC%A4%80">4.2 표준</a> <ul> <li class="toclevel-3 tocsection-7"><a href="https://ko-m-wikipedia-org.translate.goog/wiki/%EC%A0%95%EA%B7%9C_%ED%91%9C%ED%98%84%EC%8B%9D?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB#POSIX_%EA%B8%B0%EB%B3%B8_%EB%B0%8F_%ED%99%95%EC%9E%A5_%ED%91%9C%EC%A4%80_%EB%AC%B8%EB%B2%95">4.2.1 POSIX 기본 및 확장 표준 문법</a></li> <li class="toclevel-3 tocsection-8"><a href="https://ko-m-wikipedia-org.translate.goog/wiki/%EC%A0%95%EA%B7%9C_%ED%91%9C%ED%98%84%EC%8B%9D?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB#POSIX_%ED%99%95%EC%9E%A5_%EB%AC%B8%EB%B2%95">4.2.2 POSIX 확장 문법</a></li> <li class="toclevel-3 tocsection-9"><a href="https://ko-m-wikipedia-org.translate.goog/wiki/%EC%A0%95%EA%B7%9C_%ED%91%9C%ED%98%84%EC%8B%9D?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB#%EB%AC%B8%EC%9E%90_%ED%81%B4%EB%9E%98%EC%8A%A4">4.2.3 문자 클래스</a></li> </ul></li> <li class="toclevel-2 tocsection-10"><a href="https://ko-m-wikipedia-org.translate.goog/wiki/%EC%A0%95%EA%B7%9C_%ED%91%9C%ED%98%84%EC%8B%9D?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB#%ED%8E%84%EA%B3%BC_PCRE">4.3 펄과 PCRE</a></li> </ul></li> <li class="toclevel-1 tocsection-11"><a href="https://ko-m-wikipedia-org.translate.goog/wiki/%EC%A0%95%EA%B7%9C_%ED%91%9C%ED%98%84%EC%8B%9D?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB#%EC%9D%B4%EC%9A%A9">5 이용</a></li> <li class="toclevel-1 tocsection-12"><a href="https://ko-m-wikipedia-org.translate.goog/wiki/%EC%A0%95%EA%B7%9C_%ED%91%9C%ED%98%84%EC%8B%9D?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB#%EC%98%88">6 예</a></li> <li class="toclevel-1 tocsection-13"><a href="https://ko-m-wikipedia-org.translate.goog/wiki/%EC%A0%95%EA%B7%9C_%ED%91%9C%ED%98%84%EC%8B%9D?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB#%EA%B0%99%EC%9D%B4_%EB%B3%B4%EA%B8%B0">7 같이 보기</a></li> <li class="toclevel-1 tocsection-14"><a href="https://ko-m-wikipedia-org.translate.goog/wiki/%EC%A0%95%EA%B7%9C_%ED%91%9C%ED%98%84%EC%8B%9D?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB#%EA%B0%81%EC%A3%BC">8 각주</a></li> <li class="toclevel-1 tocsection-15"><a href="https://ko-m-wikipedia-org.translate.goog/wiki/%EC%A0%95%EA%B7%9C_%ED%91%9C%ED%98%84%EC%8B%9D?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB#%EC%99%B8%EB%B6%80_%EB%A7%81%ED%81%AC">9 외부 링크</a></li> </ul> </div> </section> <div class="mw-heading mw-heading2 section-heading" onclick="mfTempOpenSection(1)"> <h2 id="패턴">패턴</h2> <a role="button" href="https://ko-m-wikipedia-org.translate.goog/w/index.php?title=%EC%A0%95%EA%B7%9C_%ED%91%9C%ED%98%84%EC%8B%9D&action=edit&section=1&_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="부분 편집: 패턴" class="cdx-button cdx-button--size-large cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--icon-only cdx-button--weight-quiet "> 편집 </a> </div> <section class="mf-section-1 collapsible-block" id="mf-section-1"> <figure class="mw-default-size mw-halign-right" typeof="mw:File/Thumb"> <a href="https://ko-m-wikipedia-org.translate.goog/wiki/%ED%8C%8C%EC%9D%BC:Thompson-kleene-star.svg?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" class="mw-file-description"> <noscript> <img src="//upload.wikimedia.org/wikipedia/commons/thumb/8/8e/Thompson-kleene-star.svg/220px-Thompson-kleene-star.svg.png" decoding="async" width="220" height="110" class="mw-file-element" data-file-width="503" data-file-height="251"> </noscript><span class="lazy-image-placeholder" style="width: 220px;height: 110px;" data-src="//upload.wikimedia.org/wikipedia/commons/thumb/8/8e/Thompson-kleene-star.svg/220px-Thompson-kleene-star.svg.png" data-width="220" data-height="110" data-srcset="//upload.wikimedia.org/wikipedia/commons/thumb/8/8e/Thompson-kleene-star.svg/330px-Thompson-kleene-star.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/8/8e/Thompson-kleene-star.svg/440px-Thompson-kleene-star.svg.png 2x" data-class="mw-file-element"> </a> <figcaption> <a href="https://ko-m-wikipedia-org.translate.goog/wiki/%ED%81%B4%EB%A0%88%EC%9D%B4%EB%8B%88_%EC%8A%A4%ED%83%80?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="클레이니 스타">클레이니 스타</a>를 변환한 것. (s*는 0번 이상의 s를 뜻함) </figcaption> </figure> 정규 표현식이라는 문구는 일치하는 텍스트가 준수해야 하는 "패턴"을 표현하기 위해 특정한 표준의 텍스트 신택스를 의미하기 위해 사용된다. 정규 표현식의 각 문자(즉, 패턴을 기술하는 문자열 안의 각 문자)는 <a href="https://ko-m-wikipedia-org.translate.goog/wiki/%EB%A9%94%ED%83%80%EB%AC%B8%EC%9E%90?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="메타문자">메타문자</a>(특별한 의미로)로 이해되거나 정규 문자('문자 그대로', 즉 '리터럴'의 의미로)로 이해된다. 이를테면 정규식 <code>a.</code> a는 단지 'a'와 일치하는 리터럴 문자이며 .는 새 줄을 제외한 모든 문자와 일치시키는 메타 문자이다. 그러므로 이 정규식은 이를테면 'a', 'ax', 'a0'과 일치시킬 수 있다. 더불어, 메타문자와 리터럴 문자는 주어진 패턴의 텍스트를 식별하기 위해 사용할 수 있으며, 또 수많은 인스턴스를 처리하기 위해 사용할 수도 있다. 패턴 일치는 정확히 동일한 일치에서부터 매우 포괄적인 유사 일치(메타문자에 의해 제어)에 이르기까지 다양하다. 이를테면 <code>.</code>는 매우 포괄적인 패턴이며, <code>[a-z]</code>('a'부터 'z'까지의 모든 문자 일치)는 덜 포괄적이며 <code>a</code>는 정확한 패턴(단지 'a'만 일치)이다. 메타문자 문법은 다양한 입력 데이터의 <a href="https://ko-m-wikipedia-org.translate.goog/wiki/%ED%85%8D%EC%8A%A4%ED%8A%B8_%EC%B2%98%EB%A6%AC?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="텍스트 처리">텍스트 처리</a>의 자동화를 지시하는 정확하고 유연한 방법을 통해 표준 <a href="https://ko-m-wikipedia-org.translate.goog/wiki/ASCII?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="ASCII">ASCII</a> <a href="https://ko-m-wikipedia-org.translate.goog/wiki/%EC%BB%B4%ED%93%A8%ED%84%B0_%EC%9E%90%ED%8C%90?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="컴퓨터 자판">자판</a>을 사용하여 입력하기 쉬운 형태로, 미리 기술된 대상을 표현하기 위해 설계되었다. 이러한 신택스를 가지는 매우 단순한 정규 표현식의 경우는 <a href="https://ko-m-wikipedia-org.translate.goog/wiki/%EB%AC%B8%EC%84%9C_%ED%8E%B8%EC%A7%91%EA%B8%B0?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="문서 편집기">문서 편집기</a>에서 2가지 방식으로 발음되는 동일한 단어를 위치시키는 것을 들 수 있으며, 이를테면 <code>seriali[sz]e</code>는 "serialise"와 "serialize"를 모두 일치시킨다. <a href="https://ko-m-wikipedia-org.translate.goog/wiki/%EC%99%80%EC%9D%BC%EB%93%9C%EC%B9%B4%EB%93%9C_%EB%AC%B8%EC%9E%90?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="와일드카드 문자">와일드카드</a> 또한 이를 성취할 수 있으나 와일드카드가 패턴화할 수 있는 것으로 국한된다. (메타문자가 더 적으며 더 단순한 언어 기반임) <a href="https://ko-m-wikipedia-org.translate.goog/wiki/%EC%99%80%EC%9D%BC%EB%93%9C%EC%B9%B4%EB%93%9C_%EB%AC%B8%EC%9E%90?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="와일드카드 문자">와일드카드 문자</a>를 사용하는 경우는 파일 목록에서 비슷한 이름을 <a href="https://ko-m-wikipedia-org.translate.goog/wiki/%EA%B8%80%EB%A1%9C%EB%B8%8C_(%ED%94%84%EB%A1%9C%EA%B7%B8%EB%9E%98%EB%B0%8D)?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="글로브 (프로그래밍)">글로브</a> 처리하는 것인 반면, 정규 표현식은 일반적으로 텍스트 문자열과 패턴 일치가 되는 애플리케이션에 보통 사용된다. 이를테면 <code class="mw-highlight mw-highlight-lang-ragel mw-content-ltr" dir="ltr">^[ \t]+|[ \t]+$</code>는 줄 끝이나 줄 맨앞에 여분의 공백을 일치시킨다. 어떠한 숫자라도 일치시키기 위해 쓰이는 진보한 정규 표현식은 <code class="mw-highlight mw-highlight-lang-ragel mw-content-ltr" dir="ltr">[+-]?(\d+(\.\d+)?|\.\d+)([eE][+-]?\d+)?</code>이다. 더 많은 예를 보려면 <a href="https://ko-m-wikipedia-org.translate.goog/wiki/%EC%A0%95%EA%B7%9C_%ED%91%9C%ED%98%84%EC%8B%9D?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB#%EC%98%88">예</a> 문단을 참고할 것. </section> <div class="mw-heading mw-heading2 section-heading" onclick="mfTempOpenSection(2)"> <h2 id="역사">역사</h2> <a role="button" href="https://ko-m-wikipedia-org.translate.goog/w/index.php?title=%EC%A0%95%EA%B7%9C_%ED%91%9C%ED%98%84%EC%8B%9D&action=edit&section=2&_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="부분 편집: 역사" class="cdx-button cdx-button--size-large cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--icon-only cdx-button--weight-quiet "> 편집 </a> </div> <section class="mf-section-2 collapsible-block" id="mf-section-2"> 정규 표현식은 1951년 수학자 <a href="https://ko-m-wikipedia-org.translate.goog/wiki/%EC%8A%A4%ED%8B%B0%EB%B8%90_%ED%81%B4%EB%A0%88%EC%9D%B4%EB%8B%88?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="스티븐 클레이니">스티븐 클레이니</a>가 정규 이벤트(regular event)라는 수학적 표기법을 사용하여 <a href="https://ko-m-wikipedia-org.translate.goog/wiki/%EC%A0%95%EA%B7%9C_%EC%96%B8%EC%96%B4?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="정규 언어">정규 언어</a>를 설명하면서 시작되었다.<a href="https://ko-m-wikipedia-org.translate.goog/wiki/%EC%A0%95%EA%B7%9C_%ED%91%9C%ED%98%84%EC%8B%9D?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB#cite_note-Leung,_New_Mexico_State_University,_2010-4">[4]</a> 이는 <a href="https://ko-m-wikipedia-org.translate.goog/wiki/%EC%9D%B4%EB%A1%A0_%EC%BB%B4%ED%93%A8%ED%84%B0_%EA%B3%BC%ED%95%99?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="이론 컴퓨터 과학">이론 컴퓨터 과학</a>, <a href="https://ko-m-wikipedia-org.translate.goog/wiki/%EC%98%A4%ED%86%A0%EB%A7%88%ED%83%80_%EC%9D%B4%EB%A1%A0?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="오토마타 이론">오토마타 이론</a>(계산 모델)의 하위 분야, <a href="https://ko-m-wikipedia-org.translate.goog/wiki/%ED%98%95%EC%8B%9D_%EC%96%B8%EC%96%B4?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="형식 언어">형식 언어</a>의 설명 및 분류에서 나타났다. <a href="https://ko-m-wikipedia-org.translate.goog/wiki/%ED%8C%A8%ED%84%B4_%EB%A7%A4%EC%B9%AD?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="패턴 매칭">패턴 매칭</a>의 다른 초기 구현에는 정규 표현식을 사용하지 않고 대신 자체 패턴 일치 구성을 사용하는 <a href="https://ko-m-wikipedia-org.translate.goog/wiki/SNOBOL?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="SNOBOL">SNOBOL</a> 언어가 포함된다. 정규 표현식은 1968년부터 텍스트 편집기의 패턴 매칭과 컴파일러의 어휘 분석이라는 두 가지 용도로 널리 사용되었다. 프로그램 형식에서 정규 표현식이 처음 등장한 것은 <a href="https://ko-m-wikipedia-org.translate.goog/wiki/%EC%BC%84_%ED%86%B0%ED%94%84%EC%8A%A8?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="켄 톰프슨">켄 톰프슨</a>이 <a href="https://ko-m-wikipedia-org.translate.goog/wiki/%ED%85%8D%EC%8A%A4%ED%8A%B8_%ED%8C%8C%EC%9D%BC?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="텍스트 파일">텍스트 파일</a>의 패턴을 일치시키는 수단으로 클레이니의 표기법을 QED 편집기에 내장했을 때였다. 속도를 위해 톰프슨은 <a href="https://ko-m-wikipedia-org.translate.goog/wiki/JIT_%EC%BB%B4%ED%8C%8C%EC%9D%BC?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="JIT 컴파일">JIT 컴파일</a>의 중요한 초기 예인 <a href="https://ko-m-wikipedia-org.translate.goog/wiki/%ED%98%B8%ED%99%98_%EC%8B%9C%EB%B6%84%ED%95%A0_%EC%8B%9C%EC%8A%A4%ED%85%9C?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="호환 시분할 시스템">호환 시분할 시스템</a>의 IBM 7094 코드에 JIT 컴파일을 통해 정규 표현식 일치를 구현했다. 그는 나중에 이 기능을 유닉스 편집기 <a href="https://ko-m-wikipedia-org.translate.goog/wiki/Ed_(%EB%AC%B8%EC%84%9C_%ED%8E%B8%EC%A7%91%EA%B8%B0)?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="Ed (문서 편집기)">ed</a>에 추가했고, 이로 인해 결국 인기 있는 검색 도구인 <a href="https://ko-m-wikipedia-org.translate.goog/wiki/Grep?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="Grep">grep</a>에서 정규 표현식을 사용하게 되었다("grep"은 ed 편집기에서 정규 표현식 검색을 위한 명령에서 파생된 단어이다: "정규 표현식에 대한 전역 검색 및 일치하는 줄 출력"을 뜻하는 g/re/p). 톰프슨이 QED를 개발한 것과 거의 같은 시기에 <a href="https://ko-m-wikipedia-org.translate.goog/wiki/%EB%8D%94%EA%B8%80%EB%9F%AC%EC%8A%A4_T._%EB%A1%9C%EC%8A%A4?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="더글러스 T. 로스">더글러스 T. 로스</a>(Douglas T. Ross)를 포함한 연구자 그룹은 컴파일러 설계의 어휘 분석에 사용되는 정규 표현식 기반 도구를 구현했다. <a href="https://ko-m-wikipedia-org.translate.goog/wiki/Vi?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="Vi">vi</a>, <a href="https://ko-m-wikipedia-org.translate.goog/wiki/Lex?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="Lex">lex</a>, <a href="https://ko-m-wikipedia-org.translate.goog/wiki/Sed_(%EC%9C%A0%ED%8B%B8%EB%A6%AC%ED%8B%B0)?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="Sed (유틸리티)">sed</a>, <a href="https://ko-m-wikipedia-org.translate.goog/wiki/AWK?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="AWK">AWK</a> 및 <a href="https://ko-m-wikipedia-org.translate.goog/wiki/Expr?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="Expr">expr</a>을 포함하여 1970년대 <a href="https://ko-m-wikipedia-org.translate.goog/wiki/%EB%B2%A8_%EC%97%B0%EA%B5%AC%EC%86%8C?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="벨 연구소">벨 연구소</a>의 유닉스 프로그램과 <a href="https://ko-m-wikipedia-org.translate.goog/wiki/%EC%9D%B4%EB%A7%A5%EC%8A%A4?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="이맥스">이맥스</a>(자체적으로 호환되지 않는 구문 및 동작을 가지고 있음)와 같은 다른 프로그램에서 이러한 원래 형태의 정규 표현식의 다양한 변형이 사용되었다. 정규 표현식은 이후 다양한 프로그램에서 채택되었으며 이러한 초기 형식은 1992년 POSIX.2 표준으로 표준화되었다. 1980년대에는 <a href="https://ko-m-wikipedia-org.translate.goog/wiki/%ED%8E%84?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="펄">펄</a>에서 더 복잡한 정규 표현식이 등장했는데, 이는 원래 <a href="https://ko-m-wikipedia-org.translate.goog/wiki/%ED%97%A8%EB%A6%AC_%EC%8A%A4%ED%8E%9C%EC%84%9C?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="헨리 스펜서">헨리 스펜서</a>(1986)가 작성한 정규 표현식 라이브러리에서 파생되었으며 나중에 고급 정규 표현식(Advanced Regular Expressions)이라고 불리는 <a href="https://ko-m-wikipedia-org.translate.goog/wiki/Tcl?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="Tcl">Tcl</a>에 대한 구현을 작성했다. Tcl 라이브러리는 향상된 성능 특성을 갖춘 하이브리드 <a href="https://ko-m-wikipedia-org.translate.goog/wiki/%EB%B9%84%EA%B2%B0%EC%A0%95%EB%A1%A0%EC%A0%81_%EC%9C%A0%ED%95%9C_%EC%83%81%ED%83%9C_%EA%B8%B0%EA%B3%84?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="비결정론적 유한 상태 기계">NFA</a>/<a href="https://ko-m-wikipedia-org.translate.goog/wiki/%EA%B2%B0%EC%A0%95%EB%A1%A0%EC%A0%81_%EC%9C%A0%ED%95%9C_%EC%83%81%ED%83%9C_%EA%B8%B0%EA%B3%84?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="결정론적 유한 상태 기계">DFA</a> 구현이다. 스펜서의 Tcl 정규 표현식 구현을 채택한 소프트웨어 프로젝트에는 <a href="https://ko-m-wikipedia-org.translate.goog/wiki/PostgreSQL?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="PostgreSQL">PostgreSQL</a>이 포함된다. 펄은 나중에 스펜서의 원래 라이브러리를 확장하여 많은 새로운 기능을 추가했다. <a href="https://ko-m-wikipedia-org.translate.goog/wiki/%EB%9D%BC%EC%BF%A0_(%ED%94%84%EB%A1%9C%EA%B7%B8%EB%9E%98%EB%B0%8D_%EC%96%B8%EC%96%B4)?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="라쿠 (프로그래밍 언어)">라쿠</a>(구 명칭: 펄 6) 설계 노력의 일부는 펄의 정규 표현식 통합을 개선하고 구문 분석 표현식 문법 정의를 허용하도록 범위와 기능을 늘리는 것이다. 그 결과 라쿠 문법을 정의하고 해당 언어의 프로그래머에게 도구를 제공하는 데 사용되는 라쿠 규칙이라는 미니 언어가 탄생했다. 이러한 규칙은 펄 5.x 정규 표현식의 기존 기능을 유지하지만 하위 규칙을 통해 재귀 하강 파서의 <a href="https://ko-m-wikipedia-org.translate.goog/wiki/%EB%B0%B0%EC%BB%A4%EC%8A%A4-%EB%82%98%EC%9A%B0%EB%A5%B4_%ED%91%9C%EA%B8%B0%EB%B2%95?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="배커스-나우르 표기법">BNF</a> 스타일 정의도 허용한다. 문서 및 데이터베이스 모델링을 위한 구조화된 정보 표준에서 정규 표현식 사용은 1960년대에 시작되어 ISO SGML(ANSI "GCA 101-1983"에서 이전)과 같은 산업 표준이 통합된 1980년대에 확장되었다. 구조 사양 언어 표준의 커널은 정규 표현식으로 구성된다. 이러한 사용은 <a href="https://ko-m-wikipedia-org.translate.goog/wiki/%EB%AC%B8%EC%84%9C_%ED%98%95%EC%8B%9D_%EC%A0%95%EC%9D%98?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="문서 형식 정의">DTD</a> 요소 그룹 구문에서 분명하게 나타난다. 정규 표현식을 사용하기 전에는 많은 검색 언어에서 간단한 와일드카드를 허용했다. 예를 들어 임의의 문자 시퀀스와 일치하는 "*" 및 "?" 단일 문자와 일치한다. 이에 대한 유물은 오늘날 파일 이름에 대한 <a href="https://ko-m-wikipedia-org.translate.goog/wiki/%EA%B8%80%EB%A1%9C%EB%B8%8C_(%ED%94%84%EB%A1%9C%EA%B7%B8%EB%9E%98%EB%B0%8D)?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="글로브 (프로그래밍)">글로브</a> 구문과 <a href="https://ko-m-wikipedia-org.translate.goog/wiki/SQL?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="SQL">SQL</a> LIKE 연산자에서 찾을 수 있다. 1997년부터 <a href="https://ko-m-wikipedia-org.translate.goog/wiki/%ED%95%84%EB%A6%BD_%ED%95%98%EC%A0%A4?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="필립 하젤">필립 하젤</a>은 펄의 정규 표현식 기능을 밀접하게 모방하려고 시도하고 <a href="https://ko-m-wikipedia-org.translate.goog/wiki/PHP?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="PHP">PHP</a> 및 <a href="https://ko-m-wikipedia-org.translate.goog/wiki/%EC%95%84%ED%8C%8C%EC%B9%98_HTTP_%EC%84%9C%EB%B2%84?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="아파치 HTTP 서버">아파치 HTTP 서버</a>를 포함한 많은 최신 도구에서 사용되는 PCRE(<a href="https://ko-m-wikipedia-org.translate.goog/wiki/%ED%8E%84_%ED%98%B8%ED%99%98_%EC%A0%95%EA%B7%9C_%ED%91%9C%ED%98%84%EC%8B%9D?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="펄 호환 정규 표현식">펄 호환 정규 표현식</a>)를 개발했다. 오늘날 정규 표현식은 프로그래밍 언어, 텍스트 처리 프로그램(특히 <a href="https://ko-m-wikipedia-org.translate.goog/wiki/%EB%82%B1%EB%A7%90_%EB%B6%84%EC%84%9D?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="낱말 분석">어휘 분석기</a>), 고급 텍스트 편집기 및 기타 프로그램에서 널리 지원된다. 정규 표현식 지원은 <a href="https://ko-m-wikipedia-org.translate.goog/wiki/%EC%9E%90%EB%B0%94_(%ED%94%84%EB%A1%9C%EA%B7%B8%EB%9E%98%EB%B0%8D_%EC%96%B8%EC%96%B4)?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="자바 (프로그래밍 언어)">자바</a> 및 <a href="https://ko-m-wikipedia-org.translate.goog/wiki/%ED%8C%8C%EC%9D%B4%EC%8D%AC?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="파이썬">파이썬</a>을 포함한 많은 프로그래밍 언어의 표준 라이브러리의 일부이며 펄 및 <a href="https://ko-m-wikipedia-org.translate.goog/wiki/ECMA%EC%8A%A4%ED%81%AC%EB%A6%BD%ED%8A%B8?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="ECMA스크립트">ECMA스크립트</a>를 포함한 다른 프로그래밍 언어의 구문에 내장되어 있다. 2010년대 후반에 몇몇 회사에서는 <a href="https://ko-m-wikipedia-org.translate.goog/wiki/%EC%A4%91%EC%95%99_%EC%B2%98%EB%A6%AC_%EC%9E%A5%EC%B9%98?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="중앙 처리 장치">CPU</a> 구현에 비해 더 빠른 PCRE 호환 정규 표현식 엔진의 하드웨어, <a href="https://ko-m-wikipedia-org.translate.goog/wiki/FPGA?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="FPGA">FPGA</a>, <a href="https://ko-m-wikipedia-org.translate.goog/wiki/%EA%B7%B8%EB%9E%98%ED%94%BD_%EC%B2%98%EB%A6%AC_%EC%9E%A5%EC%B9%98?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="그래픽 처리 장치">GPU</a> 구현을 제공하기 시작했다. </section> <div class="mw-heading mw-heading2 section-heading" onclick="mfTempOpenSection(3)"> <h2 id="기본_개념">기본 개념</h2> <a role="button" href="https://ko-m-wikipedia-org.translate.goog/w/index.php?title=%EC%A0%95%EA%B7%9C_%ED%91%9C%ED%98%84%EC%8B%9D&action=edit&section=3&_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="부분 편집: 기본 개념" class="cdx-button cdx-button--size-large cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--icon-only cdx-button--weight-quiet "> 편집 </a> </div> <section class="mf-section-3 collapsible-block" id="mf-section-3"> 주로 패턴(pattern)으로 부르는 정규 표현식은 특정 목적을 위해 필요한 문자열 집합을 지정하기 위해 쓰이는 식이다. 문자열의 유한 집합을 지정하는 단순한 방법은 문자열의 <a href="https://ko-m-wikipedia-org.translate.goog/wiki/%EB%8D%B0%EC%9D%B4%ED%84%B0_%EC%9A%94%EC%86%8C?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="데이터 요소">요소</a>나 멤버를 나열하는 것이다. 그러나 문자열의 원하는 집합을 지정하기 위해 사용할 수 있는 더 간결한 방법들이 있다. 이를테면 3개의 문자열 "Handel", "Händel", "Haendel"을 포함하는 집합은 패턴 <code>H(ä|ae?)ndel</code>으로 지정이 가능하며 이러한 패턴은 3개의 문자열을 각각 일치(match)시킨다고 이야기한다. <dl> <dt> 불리언 "또는" </dt> <dd> <a href="https://ko-m-wikipedia-org.translate.goog/wiki/%EC%88%98%EC%A7%81%EC%84%A0_(%EA%B8%B0%ED%98%B8)?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="수직선 (기호)">수직선</a>은 여러 항목 중 선택을 하기 위해 구분한다. 이를테면 <code>gray|grey</code>는 "gray" 또는 "grey"와 일치한다. </dd> </dl> <dl> <dt> 그룹 묶기 </dt> <dd> <a href="https://ko-m-wikipedia-org.translate.goog/wiki/%EA%B4%84%ED%98%B8?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="괄호">괄호</a>를 사용하면 <a href="https://ko-m-wikipedia-org.translate.goog/wiki/%EC%97%B0%EC%82%B0%EC%9E%90_(%ED%94%84%EB%A1%9C%EA%B7%B8%EB%9E%98%EB%B0%8D)?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="연산자 (프로그래밍)">연산자</a>의 범위와 우선권을 정의할 수 있다. 이를테면 <code>gray|grey</code>와 <code>gr(a|e)y</code>는 "gray"나 "grey" 집합을 둘 다 기술하는 동일 패턴이다. </dd> </dl> <dl> <dt> 양의 지정 </dt> </dl> <dl> <dd> <table> <tbody> <tr> <td style="width:15px; vertical-align:top;"><code>?</code></td> <td>물음표는 0번 또는 1차례까지의 발생을 의미한다. 이를테면 <code>colou?r</code>는 "color"와 "colour"를 둘 다 일치시킨다.</td> </tr> <tr> <td style="vertical-align:top;"><code>*</code></td> <td>별표는 0번 이상의 발생을 의미한다. 이를테면 <code>ab*c</code>는 "ac", "abc", "abbc", "abbbc" 등을 일치시킨다.</td> </tr> <tr> <td style="vertical-align:top;"><code>+</code></td> <td>덧셈 기호는 1번 이상의 발생을 의미한다. 이를테면 <code>ab+c</code>는 "abc", "abbc", "abbbc" 등을 일치시키지만 "ac"는 일치시키지 않는다.</td> </tr> <tr> <td><code>{n}</code><a href="https://ko-m-wikipedia-org.translate.goog/wiki/%EC%A0%95%EA%B7%9C_%ED%91%9C%ED%98%84%EC%8B%9D?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB#cite_note-grep-5">[5]</a></td> <td>정확히 n 번만큼 일치시킨다.</td> </tr> <tr> <td><code>{min,}</code><a href="https://ko-m-wikipedia-org.translate.goog/wiki/%EC%A0%95%EA%B7%9C_%ED%91%9C%ED%98%84%EC%8B%9D?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB#cite_note-grep-5">[5]</a></td> <td>"min"번 이상만큼 일치시킨다.</td> </tr> <tr> <td><code>{min,max}</code><a href="https://ko-m-wikipedia-org.translate.goog/wiki/%EC%A0%95%EA%B7%9C_%ED%91%9C%ED%98%84%EC%8B%9D?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB#cite_note-grep-5">[5]</a></td> <td>적어도 "min"번만큼 일치시키지만 "max"번을 초과하여 일치시키지는 않는다.</td> </tr> </tbody> </table> </dd> </dl> </section> <div class="mw-heading mw-heading2 section-heading" onclick="mfTempOpenSection(4)"> <h2 id="문법">문법</h2> <a role="button" href="https://ko-m-wikipedia-org.translate.goog/w/index.php?title=%EC%A0%95%EA%B7%9C_%ED%91%9C%ED%98%84%EC%8B%9D&action=edit&section=4&_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="부분 편집: 문법" class="cdx-button cdx-button--size-large cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--icon-only cdx-button--weight-quiet "> 편집 </a> </div> <section class="mf-section-4 collapsible-block" id="mf-section-4"> 정규 표현식의 패턴은 대상 문자열과 일치시킨다. 이 패턴은 일련의 원자로 구성된다. 하나의 원자는 정규 표현식 패턴 안의 하나의 점이며, 대상 문자열과 일치시키기 위해 존재한다. 가장 단순한 형태의 원자는 리터럴(literal)이지만 원자를 일치시키기 위해 패턴을 묶을 때에는 메타문자로서 <code>( )</code>를 사용해야 한다. 메타문자는 원자 외에도 얼마나 많은 원자가 있는지를 가리키는 수량자(quantifier), 선택적인 대안을 가리키는 논리적 OR 문자, 그리고 원자의 존재를 부정하는 NOT 문자, 그리고 전에 일치된 원자를 참조할 수 있게 하는 역참조(backreference)를 만드는 것을 도와준다. <div class="mw-heading mw-heading3"> <h3 id="구분_문자">구분 문자</h3> <a role="button" href="https://ko-m-wikipedia-org.translate.goog/w/index.php?title=%EC%A0%95%EA%B7%9C_%ED%91%9C%ED%98%84%EC%8B%9D&action=edit&section=5&_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="부분 편집: 구분 문자" class="cdx-button cdx-button--size-large cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--icon-only cdx-button--weight-quiet "> 편집 </a> </div> 프로그래밍 언어에서 정규 표현식을 입력할 때, 통상적인 문자열 리터럴로 표현할 수 있으므로 일반적으로 인용 부호로 처리된다. 이는 이를테면 C, 자바, 파이썬에서도 동일한데, 정규표현식 <code>re</code>는 <code>"re"</code>로 입력된다. 그러나 <a href="https://ko-m-wikipedia-org.translate.goog/wiki/%EA%B5%AC%EB%B6%84_%EB%AC%B8%EC%9E%90?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="구분 문자">구분 문자</a>로 슬래시를 사용하는 경우도 있는데 정규 표현식 <code>re</code>에 대해서 <code>/re/</code>를 사용하는 식이다. 이는 ed라는 편집기에서 기원하며, <code>/</code>는 검색을 위한 편집기 명령어이고, <code>/re/</code>라는 식은 특정한 범위의 줄들을 지정하는데 사용할 수 있다. 비슷한 방식이 <a href="https://ko-m-wikipedia-org.translate.goog/wiki/Sed?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" class="mw-redirect mw-disambig" title="Sed">sed</a>에서 사용되는데, 검색 후 치환은 <code>s/re/replacement/</code>를 사용하며 패턴은 <code>/re1/,/re2/</code>처럼 특정한 범위의 줄을 지정하여 쉼표(,)로 결합할 수 있다. 이러한 표기법은 특히 <a href="https://ko-m-wikipedia-org.translate.goog/wiki/%ED%8E%84?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="펄">펄</a>에서도 사용된다. <div class="mw-heading mw-heading3"> <h3 id="표준">표준</h3> <a role="button" href="https://ko-m-wikipedia-org.translate.goog/w/index.php?title=%EC%A0%95%EA%B7%9C_%ED%91%9C%ED%98%84%EC%8B%9D&action=edit&section=6&_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="부분 편집: 표준" class="cdx-button cdx-button--size-large cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--icon-only cdx-button--weight-quiet "> 편집 </a> </div> <div class="mw-heading mw-heading4"> <h4 id="POSIX_기본_및_확장_표준_문법">POSIX 기본 및 확장 표준 문법</h4> <a role="button" href="https://ko-m-wikipedia-org.translate.goog/w/index.php?title=%EC%A0%95%EA%B7%9C_%ED%91%9C%ED%98%84%EC%8B%9D&action=edit&section=7&_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="부분 편집: POSIX 기본 및 확장 표준 문법" class="cdx-button cdx-button--size-large cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--icon-only cdx-button--weight-quiet "> 편집 </a> </div> 문자 클래스, "["와 "]" 사이에 포함된 문자 집합 외부에서는 12개의 문자가, 내부에서는 오직 4개의 문자("\", "^", "-", "]", <a href="https://ko-m-wikipedia-org.translate.goog/wiki/%EC%9E%90%EB%B0%94_(%ED%94%84%EB%A1%9C%EA%B7%B8%EB%9E%98%EB%B0%8D_%EC%96%B8%EC%96%B4)?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="자바 (프로그래밍 언어)">자바</a>와 <a href="https://ko-m-wikipedia-org.translate.goog/wiki/%EB%8B%B7%EB%84%B7_%ED%94%84%EB%A0%88%EC%9E%84%EC%9B%8C%ED%81%AC?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="닷넷 프레임워크">닷넷</a>은 "["를 포함)만 특수문자를 의미한다.<a href="https://ko-m-wikipedia-org.translate.goog/wiki/%EC%A0%95%EA%B7%9C_%ED%91%9C%ED%98%84%EC%8B%9D?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB#cite_note-6">[6]</a> 아래는 POSIX 기본 및 확장 표준의 문법이다. <table style="margin-left:1em;margin-right:0; font-size:95%" class="wikitable" width="900px"> <caption> </caption> <tbody> <tr> <th width="10%">메타문자</th> <th width="20%">기능</th> <th width="60%">설명</th> </tr> <tr> <td align="center">.</td> <td>문자</td> <td>1개의 문자와 일치한다. 단일행 모드에서는 <a href="https://ko-m-wikipedia-org.translate.goog/wiki/%EC%83%88%EC%A4%84_%EB%AC%B8%EC%9E%90?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="새줄 문자">새줄 문자</a>를 제외한다.</td> </tr> <tr> <td align="center">[ ]</td> <td>문자 클래스</td> <td>"["과 "]" 사이의 문자 중 하나를 선택한다. "¦"를 여러 개 쓴 것과 같은 의미이다. 예를 들면 [abc]d는 ad, bd, cd를 뜻한다. 또한, "-" 기호와 함께 쓰면 범위를 지정할 수 있다. "[a-z]"는 a부터 z까지 중 하나, "[1-9]"는 1부터 9까지 중의 하나를 의미한다.</td> </tr> <tr> <td align="center">[^ ]</td> <td>부정</td> <td>문자 클래스 안의 문자를 제외한 나머지를 선택한다. 예를 들면 [^abc]d는 ad, bd, cd는 포함하지 않고 ed, fd 등을 포함한다. [^a-z]는 알파벳 소문자로 시작하지 않는 모든 문자를 의미한다.</td> </tr> <tr> <td align="center">^</td> <td>처음</td> <td>문자열이나 행의 처음을 의미한다.</td> </tr> <tr> <td align="center">$</td> <td>끝</td> <td>문자열이나 행의 끝을 의미한다.</td> </tr> <tr> <td align="center">( )</td> <td>하위식</td> <td>여러 식을 하나로 묶을 수 있다. "abc¦adc"와 "a(b¦d)c"는 같은 의미를 가진다.</td> </tr> <tr> <td align="center">\n</td> <td>일치하는 n번째 패턴</td> <td>일치하는 패턴들 중 n번째를 선택하며, 여기에서 n은 1에서 9 중 하나가 올 수 있다.</td> </tr> <tr> <td align="center">*</td> <td>0회 이상</td> <td>0개 이상의 문자를 포함한다. "a*b"는 "b", "ab", "aab", "aaab"를 포함한다.</td> </tr> <tr> <td align="center">{m, n}</td> <td>m회 이상 n회 이하</td> <td>"a{1,3}b"는 "ab", "aab", "aaab"를 포함하지만, "b"나 "aaaab"는 포함하지 않는다.</td> </tr> </tbody> </table> 많은 <a href="https://ko-m-wikipedia-org.translate.goog/wiki/%ED%94%84%EB%A1%9C%EA%B7%B8%EB%9E%98%EB%B0%8D_%EC%96%B8%EC%96%B4?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="프로그래밍 언어">프로그래밍 언어</a>에서는 이를 확장한 문법을 가지고 있다. 이 중 POSIX에서 사용되는 확장 문법은 <a href="https://ko-m-wikipedia-org.translate.goog/wiki/%EC%A0%95%EA%B7%9C_%ED%91%9C%ED%98%84%EC%8B%9D?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB#POSIX_%ED%99%95%EC%9E%A5_%EB%AC%B8%EB%B2%95">POSIX 확장 문법</a>을 참고할 것. 그 외의 환경에 대해서는 <a href="https://ko-m-wikipedia-org.translate.goog/wiki/%EC%A0%95%EA%B7%9C_%ED%91%9C%ED%98%84%EC%8B%9D?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB#%EB%AC%B8%EC%9E%90_%ED%81%B4%EB%9E%98%EC%8A%A4">문자 클래스</a> 단락을 참고할 것. <div class="mw-heading mw-heading4"> <h4 id="POSIX_확장_문법">POSIX 확장 문법</h4> <a role="button" href="https://ko-m-wikipedia-org.translate.goog/w/index.php?title=%EC%A0%95%EA%B7%9C_%ED%91%9C%ED%98%84%EC%8B%9D&action=edit&section=8&_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="부분 편집: POSIX 확장 문법" class="cdx-button cdx-button--size-large cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--icon-only cdx-button--weight-quiet "> 편집 </a> </div> <table style="margin-left:1em;margin-right:0; font-size:95%" class="wikitable" width="900px"> <caption> </caption> <tbody> <tr> <th width="10%">메타문자</th> <th width="20%">기능</th> <th width="60%">설명</th> </tr> <tr> <td align="center">?</td> <td>0 또는 1회</td> <td>"a?b"는 "b", "ab"를 포함한다.</td> </tr> <tr> <td align="center">+</td> <td>1회 이상</td> <td>"a+b"는 "ab", "aab", "aaab"를 포함하지만 "b"는 포함하지 않는다.</td> </tr> <tr> <td align="center">¦</td> <td>선택</td> <td>여러 식 중에서 하나를 선택한다. 예를 들어, "abc¦adc"는 abc와 adc 문자열을 모두 포함한다.</td> </tr> </tbody> </table> <div class="mw-heading mw-heading4"> <h4 id="문자_클래스">문자 클래스</h4> <a role="button" href="https://ko-m-wikipedia-org.translate.goog/w/index.php?title=%EC%A0%95%EA%B7%9C_%ED%91%9C%ED%98%84%EC%8B%9D&action=edit&section=9&_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="부분 편집: 문자 클래스" class="cdx-button cdx-button--size-large cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--icon-only cdx-button--weight-quiet "> 편집 </a> </div> 문자 클래스는 문자열 일치 다음으로 가장 기본적인 정규 표현식 개념이다. 이는 하나의 작은 일련의 문자열들을 더 큰 집합의 문자열들과 일치시키도록 한다. 이를테면, <code>[A-Z]</code>는 알파벳을 대표하며 <code>\d</code>는 임의의 숫자를 의미할 수 있다. 문자 클래스는 POSIX 수준에 적용한다. <code>[a-Z]</code>와 같은 특정 범위의 문자들을 지정할 때 컴퓨터의 로캘 설정들은 문자 인코딩의 수치적 나열에 따라 내용을 결정한다. 그러한 나열에 따라 수치들을 저장할 수 있으며 그 순서는 abc...zABC...Z, aAbBcC...zZ와 같이 될 수 있다. 그러므로 POSIX 표준은 문자 클래스를 정의하며 이는 설치된 정규 표현식 처리기가 인지한다. 이러한 정의들은 다음의 표를 따른다: <table class="wikitable"> <tbody> <tr> <th>POSIX</th> <th>비표준</th> <th>펄/Tcl</th> <th>Vim</th> <th>ASCII</th> <th>설명</th> </tr> <tr> <td><code>[:alnum:]</code></td> <td></td> <td></td> <td></td> <td><code>[A-Za-z0-9]</code></td> <td>영숫자</td> </tr> <tr> <td></td> <td><code>[:word:]</code></td> <td><code>\w</code></td> <td><code>\w</code></td> <td><code>[A-Za-z0-9_]</code></td> <td>영숫자 + "_"</td> </tr> <tr> <td></td> <td></td> <td><code>\W</code></td> <td><code>\W</code></td> <td><code>[^A-Za-z0-9_]</code></td> <td>낱말이 아닌 문자</td> </tr> <tr> <td><code>[:alpha:]</code></td> <td></td> <td></td> <td><code>\a</code></td> <td><code>[A-Za-z]</code></td> <td>알파벳 문자</td> </tr> <tr> <td><code>[:blank:]</code></td> <td></td> <td></td> <td><code>\s</code></td> <td><code>[ <a href="https://ko-m-wikipedia-org.translate.goog/wiki/%5Ct?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" class="mw-redirect" title="\t">\t</a>]</code></td> <td>공백과 탭</td> </tr> <tr> <td></td> <td></td> <td><code>\b</code></td> <td><code>\< \></code></td> <td><code>(?<=\W)(?=\w)|(?<=\w)(?=\W)</code></td> <td>낱말 경계</td> </tr> <tr> <td><code>[:cntrl:]</code></td> <td></td> <td></td> <td></td> <td><code>[\x00-\x1F\x7F]</code></td> <td><a href="https://ko-m-wikipedia-org.translate.goog/wiki/%EC%A0%9C%EC%96%B4_%EB%AC%B8%EC%9E%90?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="제어 문자">제어 문자</a></td> </tr> <tr> <td><code>[:digit:]</code></td> <td></td> <td><code>\d</code></td> <td><code>\d</code></td> <td><code>[0-9]</code></td> <td>숫자</td> </tr> <tr> <td></td> <td></td> <td><code>\D</code></td> <td><code>\D</code></td> <td><code>[^0-9]</code></td> <td>숫자가 아닌 문자</td> </tr> <tr> <td><code>[:graph:]</code></td> <td></td> <td></td> <td></td> <td><code>[\x21-\x7E]</code></td> <td>보이는 문자</td> </tr> <tr> <td><code>[:lower:]</code></td> <td></td> <td></td> <td><code>\l</code></td> <td><code>[a-z]</code></td> <td>소문자</td> </tr> <tr> <td><code>[:print:]</code></td> <td></td> <td></td> <td><code>\p</code></td> <td><code>[\x20-\x7E]</code></td> <td>보이는 문자 및 공백 문자</td> </tr> <tr> <td><code>[:punct:]</code></td> <td></td> <td></td> <td></td> <td><code>[][!"#$%&'()*+,./:;<=>?@\^_`{|}~-]</code></td> <td>구두점</td> </tr> <tr> <td><code>[:space:]</code></td> <td></td> <td><code>\s</code></td> <td><code>\_s</code> (단순히 줄 끝에 추가)</td> <td><code>[ <a href="https://ko-m-wikipedia-org.translate.goog/wiki/%5Ct?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" class="mw-redirect" title="\t">\t</a><a href="https://ko-m-wikipedia-org.translate.goog/wiki/%5Cr?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" class="mw-redirect" title="\r">\r</a><a href="https://ko-m-wikipedia-org.translate.goog/wiki/%5Cn?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" class="mw-redirect" title="\n">\n</a><a href="https://ko-m-wikipedia-org.translate.goog/wiki/%5Cv?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" class="mw-redirect" title="\v">\v</a><a href="https://ko-m-wikipedia-org.translate.goog/wiki/%5Cf?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" class="mw-redirect" title="\f">\f</a>]</code></td> <td><a href="https://ko-m-wikipedia-org.translate.goog/wiki/%EA%B3%B5%EB%B0%B1_%EB%AC%B8%EC%9E%90?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="공백 문자">공백 문자</a></td> </tr> <tr> <td></td> <td></td> <td><code>\S</code></td> <td></td> <td><code>[^ \t\r\n\v\f]</code></td> <td>공백이 아닌 모든 문자</td> </tr> <tr> <td><code>[:upper:]</code></td> <td></td> <td></td> <td><code>\u</code></td> <td><code>[A-Z]</code></td> <td>대문자</td> </tr> <tr> <td><code>[:xdigit:]</code></td> <td></td> <td></td> <td><code>\x</code></td> <td><code>[A-Fa-f0-9]</code></td> <td>16진수</td> </tr> </tbody> </table> <div class="mw-heading mw-heading3"> <h3 id="펄과_PCRE">펄과 PCRE</h3> <a role="button" href="https://ko-m-wikipedia-org.translate.goog/w/index.php?title=%EC%A0%95%EA%B7%9C_%ED%91%9C%ED%98%84%EC%8B%9D&action=edit&section=10&_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="부분 편집: 펄과 PCRE" class="cdx-button cdx-button--size-large cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--icon-only cdx-button--weight-quiet "> 편집 </a> </div> <style data-mw-deduplicate="TemplateStyles:r34311305">.mw-parser-output .hatnote{}.mw-parser-output div.hatnote{padding-left:1.6em;margin-bottom:0.5em}.mw-parser-output .hatnote i{font-style:normal}.mw-parser-output .hatnote+link+.hatnote{margin-top:-0.5em}</style> <div role="note" class="hatnote navigation-not-searchable"> <noscript> <img alt="" src="//upload.wikimedia.org/wikipedia/commons/thumb/5/52/Icons8_flat_search.svg/18px-Icons8_flat_search.svg.png" decoding="async" width="18" height="18" class="mw-file-element" data-file-width="512" data-file-height="512"> </noscript><span class="lazy-image-placeholder" style="width: 18px;height: 18px;" data-src="//upload.wikimedia.org/wikipedia/commons/thumb/5/52/Icons8_flat_search.svg/18px-Icons8_flat_search.svg.png" data-alt="" data-width="18" data-height="18" data-srcset="//upload.wikimedia.org/wikipedia/commons/thumb/5/52/Icons8_flat_search.svg/27px-Icons8_flat_search.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/5/52/Icons8_flat_search.svg/36px-Icons8_flat_search.svg.png 2x" data-class="mw-file-element">  <a href="https://ko-m-wikipedia-org.translate.goog/wiki/%ED%8E%84_%ED%98%B8%ED%99%98_%EC%A0%95%EA%B7%9C_%ED%91%9C%ED%98%84%EC%8B%9D?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="펄 호환 정규 표현식">펄 호환 정규 표현식</a> 문서를 참고하십시오. </div> 표현력과 (상대적으로) 양호한 가독성으로 인해 <a href="https://ko-m-wikipedia-org.translate.goog/wiki/%EC%9E%90%EB%B0%94_(%ED%94%84%EB%A1%9C%EA%B7%B8%EB%9E%98%EB%B0%8D_%EC%96%B8%EC%96%B4)?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="자바 (프로그래밍 언어)">자바</a>, <a href="https://ko-m-wikipedia-org.translate.goog/wiki/%EC%9E%90%EB%B0%94%EC%8A%A4%ED%81%AC%EB%A6%BD%ED%8A%B8?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="자바스크립트">자바스크립트</a>, <a href="https://ko-m-wikipedia-org.translate.goog/wiki/%ED%8C%8C%EC%9D%B4%EC%8D%AC?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="파이썬">파이썬</a>, <a href="https://ko-m-wikipedia-org.translate.goog/wiki/%EB%A3%A8%EB%B9%84_(%ED%94%84%EB%A1%9C%EA%B7%B8%EB%9E%98%EB%B0%8D_%EC%96%B8%EC%96%B4)?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="루비 (프로그래밍 언어)">루비</a>, <a href="https://ko-m-wikipedia-org.translate.goog/wiki/%EB%A7%88%EC%9D%B4%ED%81%AC%EB%A1%9C%EC%86%8C%ED%94%84%ED%8A%B8?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="마이크로소프트">마이크로소프트</a>의 <a href="https://ko-m-wikipedia-org.translate.goog/wiki/%EB%8B%B7%EB%84%B7_%ED%94%84%EB%A0%88%EC%9E%84%EC%9B%8C%ED%81%AC?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="닷넷 프레임워크">닷넷 프레임워크</a>, <a href="https://ko-m-wikipedia-org.translate.goog/wiki/XML_%EC%8A%A4%ED%82%A4%EB%A7%88?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="XML 스키마">XML 스키마</a> 등의 여러 수많은 유틸리티들과 프로그래밍 언어들은 펄의 정규식과 비슷한 문법을 채택하고 있다. <a href="https://ko-m-wikipedia-org.translate.goog/wiki/Boost?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" class="mw-redirect mw-disambig" title="Boost">Boost</a>와 <a href="https://ko-m-wikipedia-org.translate.goog/wiki/PHP?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="PHP">PHP</a>와 같은 일부 언어들과 도구들은 여러 방식의 정규식을 지원한다. 펄 파생 정규식 구현체들은 완전히 동일한 것은 아니며 일반적으로 1994년에 출시된 펄 5.0의 기능의 하위 집합을 구현하고 있다. 펄은 종종 다른 언어에서 발견되는 기능들을 도입하고 있는데, 이를테면 펄 5.10은 <a href="https://ko-m-wikipedia-org.translate.goog/wiki/%ED%8E%84_%ED%98%B8%ED%99%98_%EC%A0%95%EA%B7%9C_%ED%91%9C%ED%98%84%EC%8B%9D?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="펄 호환 정규 표현식">PCRE</a>와 파이썬에서 개발되는 문법 확장들을 구현한다.<a href="https://ko-m-wikipedia-org.translate.goog/wiki/%EC%A0%95%EA%B7%9C_%ED%91%9C%ED%98%84%EC%8B%9D?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB#cite_note-7">[7]</a> </section> <div class="mw-heading mw-heading2 section-heading" onclick="mfTempOpenSection(5)"> <h2 id="이용">이용</h2> <a role="button" href="https://ko-m-wikipedia-org.translate.goog/w/index.php?title=%EC%A0%95%EA%B7%9C_%ED%91%9C%ED%98%84%EC%8B%9D&action=edit&section=11&_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="부분 편집: 이용" class="cdx-button cdx-button--size-large cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--icon-only cdx-button--weight-quiet "> 편집 </a> </div> <section class="mf-section-5 collapsible-block" id="mf-section-5"> 정규 표현식은 다양한 <a href="https://ko-m-wikipedia-org.translate.goog/wiki/%ED%85%8D%EC%8A%A4%ED%8A%B8_%EC%B2%98%EB%A6%AC?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="텍스트 처리">텍스트 처리</a> 작업, 더 일반적으로 문자열 처리에 유용하며, 여기에서 데이터는 반드시 텍스트일 필요는 없다. 일반적으로 <a href="https://ko-m-wikipedia-org.translate.goog/wiki/%EB%8D%B0%EC%9D%B4%ED%84%B0_%EA%B2%80%EC%A6%9D?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="데이터 검증">데이터 검증</a>, <a href="https://ko-m-wikipedia-org.translate.goog/wiki/%EB%8D%B0%EC%9D%B4%ED%84%B0_%EC%8A%A4%ED%81%AC%EB%9E%98%ED%95%91?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" class="mw-redirect" title="데이터 스크래핑">데이터 스크래핑</a>(일반적으로 <a href="https://ko-m-wikipedia-org.translate.goog/wiki/%EC%9B%B9_%EC%8A%A4%ED%81%AC%EB%9E%98%ED%95%91?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="웹 스크래핑">웹 스크래핑</a>), <a href="https://ko-m-wikipedia-org.translate.goog/wiki/%EB%8D%B0%EC%9D%B4%ED%84%B0_%EB%9E%AD%EA%B8%80%EB%A7%81?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="데이터 랭글링">데이터 랭글링</a>, 단순 <a href="https://ko-m-wikipedia-org.translate.goog/wiki/%EA%B5%AC%EB%AC%B8_%EB%B6%84%EC%84%9D?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="구문 분석">파싱</a>, <a href="https://ko-m-wikipedia-org.translate.goog/wiki/%EB%AC%B8%EB%B2%95_%EA%B0%95%EC%A1%B0?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" class="mw-redirect" title="문법 강조">문법 강조</a> 시스템 개발 등의 작업에 응용된다. 정규 표현식이 인터넷 <a href="https://ko-m-wikipedia-org.translate.goog/wiki/%EA%B2%80%EC%83%89_%EC%97%94%EC%A7%84?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="검색 엔진">검색 엔진</a>에 유용할 수 있으나 전체 데이터베이스를 거쳐 이것들을 처리하기에는 정규 표현식의 복잡도와 설계에 따라 컴퓨터 자원을 과도하게 소비할 수 있다. 대개의 경우 시스템 관리자들이 정규 표현식 기반 쿼리를 내부적으로 수행할 수 있지만 대부분의 검색 엔진들은 대중에게 정규 표현식 지원을 제공하지 않는다. </section> <div class="mw-heading mw-heading2 section-heading" onclick="mfTempOpenSection(6)"> <h2 id="예">예</h2> <a role="button" href="https://ko-m-wikipedia-org.translate.goog/w/index.php?title=%EC%A0%95%EA%B7%9C_%ED%91%9C%ED%98%84%EC%8B%9D&action=edit&section=12&_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="부분 편집: 예" class="cdx-button cdx-button--size-large cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--icon-only cdx-button--weight-quiet "> 편집 </a> </div> <section class="mf-section-6 collapsible-block" id="mf-section-6"> 특정 문법 규칙은 사용 중인 특정 구현체, <a href="https://ko-m-wikipedia-org.translate.goog/wiki/%ED%94%84%EB%A1%9C%EA%B7%B8%EB%9E%98%EB%B0%8D_%EC%96%B8%EC%96%B4?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="프로그래밍 언어">프로그래밍 언어</a>, <a href="https://ko-m-wikipedia-org.translate.goog/wiki/%EB%9D%BC%EC%9D%B4%EB%B8%8C%EB%9F%AC%EB%A6%AC_(%EC%BB%B4%ED%93%A8%ED%8C%85)?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="라이브러리 (컴퓨팅)">라이브러리</a>에 따라 다양하다. 또한 정규 표현식 구현체들의 기능은 <a href="https://ko-m-wikipedia-org.translate.goog/wiki/%EC%86%8C%ED%94%84%ED%8A%B8%EC%9B%A8%EC%96%B4_%EB%B2%84%EC%A0%84?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" class="mw-redirect" title="소프트웨어 버전">소프트웨어 버전</a> 간에도 다를 수 있다. 정규 표현식들은 예제 없이 설명과 이해를 동시에 하는 것은 어려울 수 있다. 아래에는 정규 표현식의 속성 중 일부의 기본적인 설명을 제시한다. 아래의 항목들은 예제에 사용된다.<a href="https://ko-m-wikipedia-org.translate.goog/wiki/%EC%A0%95%EA%B7%9C_%ED%91%9C%ED%98%84%EC%8B%9D?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB#cite_note-clarify000-8">[8]</a> <pre> 메타문자 ;; 메타문자들의 열은 표현할 정규식을 지정한다. =~ m//  ;; 펄에서 문자열을 '일치'시키려는 동작을 지정한다. =~ s///  ;; 펄에서 문자열을 '대체'시키려는 동작을 지정한다. </pre> 이 예제들에 사용된 문법과 규칙들은 다른 프로그래밍 환경에서와 일치한다.<a href="https://ko-m-wikipedia-org.translate.goog/wiki/%EC%A0%95%EA%B7%9C_%ED%91%9C%ED%98%84%EC%8B%9D?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB#cite_note-9">[9]</a> <table class="wikitable"> <tbody> <tr> <th>메타문자</th> <th>설명</th> <th>예시<a href="https://ko-m-wikipedia-org.translate.goog/wiki/%EC%A0%95%EA%B7%9C_%ED%91%9C%ED%98%84%EC%8B%9D?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB#cite_note-10">[10]</a></th> </tr> <tr> <th><code>.</code></th> <td>일반적으로 새 줄을 제외한 모든 어떠한 문자열과도 일치한다.</td> <td> <div class="mw-highlight mw-highlight-lang-perl mw-content-ltr" dir="ltr"> <pre>$string1 = "Hello World\n"; if ($string1 =~ m/...../) { print "$string1 has length >= 5\n"; } </pre> </div>출력: <pre>Hello World has length >= 5 </pre></td> </tr> <tr> <th><code>( )</code></th> <td>일련의 패턴 요소들을 하나의 요소로 묶는다. 괄호 안의 패턴을 일치시킬 때 <code>$1</code>, <code>$2</code>, ... 중 하나를 사용할 수 있다.</td> <td> <div class="mw-highlight mw-highlight-lang-perl mw-content-ltr" dir="ltr"> <pre>$string1 = "Hello World\n"; if ($string1 =~ m/(H..).(o..)/) { print "We matched '$1' and '$2'\n"; } </pre> </div>출력: <div class="mw-highlight mw-highlight-lang-text mw-content-ltr" dir="ltr"> <pre>We matched 'Hel' and 'o W' </pre> </div></td> </tr> <tr> <th><code>+</code></th> <td>1번 이상 발생하는 패턴과 일치시킨다.</td> <td> <div class="mw-highlight mw-highlight-lang-perl mw-content-ltr" dir="ltr"> <pre>$string1 = "Hello World\n"; if ($string1 =~ m/l+/) { print "There are one or more consecutive letter \"l\"'s in $string1\n"; } </pre> </div>출력: <div class="mw-highlight mw-highlight-lang-text mw-content-ltr" dir="ltr"> <pre>There are one or more consecutive letter "l"'s in Hello World </pre> </div></td> </tr> <tr> <th><code>?</code></th> <td>0~1번 발생하는 패턴과 일치시킨다.</td> <td> <div class="mw-highlight mw-highlight-lang-perl mw-content-ltr" dir="ltr"> <pre>$string1 = "Hello World\n"; if ($string1 =~ m/H.?e/) { print "There is an 'H' and a 'e' separated by "; print "0-1 characters (Ex: He Hoe)\n"; } </pre> </div>출력: <div class="mw-highlight mw-highlight-lang-text mw-content-ltr" dir="ltr"> <pre>There is an 'H' and a 'e' separated by 0-1 characters (Ex: He Hoe) </pre> </div></td> </tr> <tr> <th><code>?</code></th> <td></td> <td> <div class="mw-highlight mw-highlight-lang-perl mw-content-ltr" dir="ltr"> <pre>$string1 = "Hello World\n"; if ($string1 =~ m/(l.+?o)/) { print "The non-greedy match with 'l' followed by one or\n"; print "more characters is 'llo' rather than 'llo Wo'.\n"; } </pre> </div>출력: <div class="mw-highlight mw-highlight-lang-text mw-content-ltr" dir="ltr"> <pre>The non-greedy match with 'l' followed by one or more characters is 'llo' rather than 'llo Wo'. </pre> </div></td> </tr> <tr> <th><code>*</code></th> <td>0번 이상 발생하는 패턴과 일치시킨다.</td> <td> <div class="mw-highlight mw-highlight-lang-perl mw-content-ltr" dir="ltr"> <pre>$string1 = "Hello World\n"; if ($string1 =~ m/el*o/) { print "There is an 'e' followed by zero to many "; print "'l' followed by 'o' (eo, elo, ello, elllo)\n"; } </pre> </div>출력: <div class="mw-highlight mw-highlight-lang-text mw-content-ltr" dir="ltr"> <pre>There is an 'e' followed by zero to many 'l' followed by 'o' (eo, elo, ello, elllo) </pre> </div></td> </tr> <tr> <th>{M,N}</th> <td>최소 M번, 최대 N번 발생되는 패턴과 일치시킨다.</td> <td> <div class="mw-highlight mw-highlight-lang-perl mw-content-ltr" dir="ltr"> <pre>$string1 = "Hello World\n"; if ($string1 =~ m/l{1,2}/) { print "There exists a substring with at least 1 "; print "and at most 2 l's in $string1\n"; } </pre> </div>출력: <div class="mw-highlight mw-highlight-lang-text mw-content-ltr" dir="ltr"> <pre>There exists a substring with at least 1 and at most 2 l's in Hello World </pre> </div></td> </tr> <tr> <th><code>[...]</code></th> <td>가능한 문자열의 집합과 일치시킨다.</td> <td> <div class="mw-highlight mw-highlight-lang-perl mw-content-ltr" dir="ltr"> <pre>$string1 = "Hello World\n"; if ($string1 =~ m/[aeiou]+/) { print "$string1 contains one or more vowels.\n"; } </pre> </div>출력: <div class="mw-highlight mw-highlight-lang-text mw-content-ltr" dir="ltr"> <pre>Hello World contains one or more vowels. </pre> </div></td> </tr> <tr> <th><code>|</code></th> <td>가능성 있는 항목들을 구별하여 선택한다.</td> <td> <div class="mw-highlight mw-highlight-lang-perl mw-content-ltr" dir="ltr"> <pre>$string1 = "Hello World\n"; if ($string1 =~ m/(Hello|Hi|Pogo)/) { print "At least one of Hello, Hi, or Pogo is "; print "contained in $string1.\n"; } </pre> </div>출력: <div class="mw-highlight mw-highlight-lang-text mw-content-ltr" dir="ltr"> <pre>At least one of Hello, Hi, or Pogo is contained in Hello World . </pre> </div></td> </tr> <tr> <th><code>\b</code></th> <td></td> <td> <div class="mw-highlight mw-highlight-lang-perl mw-content-ltr" dir="ltr"> <pre>$string1 = "Hello World\n"; if ($string1 =~ m/llo\b/) { print "There is a word that ends with 'llo'\n"; } </pre> </div>출력: <div class="mw-highlight mw-highlight-lang-text mw-content-ltr" dir="ltr"> <pre>There is a word that ends with 'llo' </pre> </div></td> </tr> <tr> <th><code>\w</code></th> <td>"_"를 포함한 영숫자를 일치시킨다.</td> <td> <div class="mw-highlight mw-highlight-lang-perl mw-content-ltr" dir="ltr"> <pre>$string1 = "Hello World\n"; if ($string1 =~ m/\w/) { print "There is at least one alphanumeric "; print "character in $string1 (A-Z, a-z, 0-9, _)\n"; } </pre> </div>출력: <div class="mw-highlight mw-highlight-lang-text mw-content-ltr" dir="ltr"> <pre>There is at least one alphanumeric character in Hello World (A-Z, a-z, 0-9, _) </pre> </div></td> </tr> <tr> <th><code>\W</code></th> <td>"_"를 제외하여 영숫자가 아닌 문자열들과 일치시킨다.</td> <td> <div class="mw-highlight mw-highlight-lang-perl mw-content-ltr" dir="ltr"> <pre>$string1 = "Hello World\n"; if ($string1 =~ m/\W/) { print "The space between Hello and "; print "World is not alphanumeric\n"; } </pre> </div>출력: <div class="mw-highlight mw-highlight-lang-text mw-content-ltr" dir="ltr"> <pre>The space between Hello and World is not alphanumeric </pre> </div></td> </tr> <tr> <th><code>\s</code></th> <td>공백 문자와 일치시킨다.</td> <td> <div class="mw-highlight mw-highlight-lang-perl mw-content-ltr" dir="ltr"> <pre>$string1 = "Hello World\n"; if ($string1 =~ m/\s.*\s/) { print "There are TWO whitespace characters, which may"; print " be separated by other characters, in $string1"; } </pre> </div>출력: <div class="mw-highlight mw-highlight-lang-text mw-content-ltr" dir="ltr"> <pre>There are TWO whitespace characters, which may be separated by other characters, in Hello World </pre> </div></td> </tr> <tr> <th><code>\S</code></th> <td>공백을 제외한 어떠한 것이든 일치시킨다.</td> <td> <div class="mw-highlight mw-highlight-lang-perl mw-content-ltr" dir="ltr"> <pre>$string1 = "Hello World\n"; if ($string1 =~ m/\S.*\S/) { print "There are TWO non-whitespace characters, which"; print " may be separated by other characters, in $string1"; } </pre> </div>출력: <div class="mw-highlight mw-highlight-lang-text mw-content-ltr" dir="ltr"> <pre>There are TWO non-whitespace characters, which may be separated by other characters, in Hello World </pre> </div></td> </tr> <tr> <th><code>\d</code></th> <td>숫자를 일치시킨다.</td> <td> <div class="mw-highlight mw-highlight-lang-perl mw-content-ltr" dir="ltr"> <pre>$string1 = "99 bottles of beer on the wall."; if ($string1 =~ m/(\d+)/) { print "$1 is the first number in '$string1'\n"; } </pre> </div>출력: <div class="mw-highlight mw-highlight-lang-text mw-content-ltr" dir="ltr"> <pre>99 is the first number in '99 bottles of beer on the wall.' </pre> </div></td> </tr> <tr> <th><code>\D</code></th> <td>숫자가 아닌 항목을 일치시킨다.</td> <td> <div class="mw-highlight mw-highlight-lang-perl mw-content-ltr" dir="ltr"> <pre>$string1 = "Hello World\n"; if ($string1 =~ m/\D/) { print "There is at least one character in $string1"; print " that is not a digit.\n"; } </pre> </div>출력: <div class="mw-highlight mw-highlight-lang-text mw-content-ltr" dir="ltr"> <pre>There is at least one character in Hello World that is not a digit. </pre> </div></td> </tr> <tr> <th><code>^</code></th> <td>줄이나 문자열의 시작점과 일치시킨다.</td> <td> <div class="mw-highlight mw-highlight-lang-perl mw-content-ltr" dir="ltr"> <pre>$string1 = "Hello World\n"; if ($string1 =~ m/^He/) { print "$string1 starts with the characters 'He'\n"; } </pre> </div>출력: <div class="mw-highlight mw-highlight-lang-text mw-content-ltr" dir="ltr"> <pre>Hello World starts with the characters 'He' </pre> </div></td> </tr> <tr> <th><code>$</code></th> <td>줄이나 문자열의 끝과 일치시킨다.</td> <td> <div class="mw-highlight mw-highlight-lang-perl mw-content-ltr" dir="ltr"> <pre>$string1 = "Hello World\n"; if ($string1 =~ m/rld$/) { print "$string1 is a line or string "; print "that ends with 'rld'\n"; } </pre> </div>출력: <div class="mw-highlight mw-highlight-lang-text mw-content-ltr" dir="ltr"> <pre>Hello World is a line or string that ends with 'rld' </pre> </div></td> </tr> <tr> <th><code>\A</code></th> <td>문자열의 시작점과 일치시킨다. (내부 줄이 아닌)</td> <td> <div class="mw-highlight mw-highlight-lang-perl mw-content-ltr" dir="ltr"> <pre>$string1 = "Hello\nWorld\n"; if ($string1 =~ m/\AH/) { print "$string1 is a string "; print "that starts with 'H'\n"; } </pre> </div>출력: <div class="mw-highlight mw-highlight-lang-text mw-content-ltr" dir="ltr"> <pre>Hello World is a string that starts with 'H' </pre> </div></td> </tr> <tr> <th><code>\z</code></th> <td>문자열의 끝과 일치시킨다. (내부 줄이 아닌)<a href="https://ko-m-wikipedia-org.translate.goog/wiki/%EC%A0%95%EA%B7%9C_%ED%91%9C%ED%98%84%EC%8B%9D?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB#cite_note-Perl_Best_Practices-11">[11]</a></td> <td> <div class="mw-highlight mw-highlight-lang-perl mw-content-ltr" dir="ltr"> <pre>$string1 = "Hello\nWorld\n"; if ($string1 =~ m/d\n\z/) { print "$string1 is a string "; print "that ends with 'd\\n'\n"; } </pre> </div>출력: <div class="mw-highlight mw-highlight-lang-text mw-content-ltr" dir="ltr"> <pre>Hello World is a string that ends with 'd\n' </pre> </div></td> </tr> <tr> <th><code>[^...]</code></th> <td>괄호 안의 항목을 제외한 모든 문자열과 일치시킨다.</td> <td> <div class="mw-highlight mw-highlight-lang-perl mw-content-ltr" dir="ltr"> <pre>$string1 = "Hello World\n"; if ($string1 =~ m/[^abc]/) { print "$string1 contains a character other than "; print "a, b, and c\n"; } </pre> </div>출력: <div class="mw-highlight mw-highlight-lang-text mw-content-ltr" dir="ltr"> <pre>Hello World contains a character other than a, b, and c </pre> </div></td> </tr> </tbody> </table> </section> <div class="mw-heading mw-heading2 section-heading" onclick="mfTempOpenSection(7)"> <h2 id="같이_보기">같이 보기</h2> <a role="button" href="https://ko-m-wikipedia-org.translate.goog/w/index.php?title=%EC%A0%95%EA%B7%9C_%ED%91%9C%ED%98%84%EC%8B%9D&action=edit&section=13&_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="부분 편집: 같이 보기" class="cdx-button cdx-button--size-large cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--icon-only cdx-button--weight-quiet "> 편집 </a> </div> <section class="mf-section-7 collapsible-block" id="mf-section-7"> <ul> <li><a href="https://ko-m-wikipedia-org.translate.goog/wiki/%EC%A0%95%EA%B7%9C_%EC%96%B8%EC%96%B4?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="정규 언어">정규 언어</a></li> <li><a href="https://ko-m-wikipedia-org.translate.goog/wiki/%EC%A0%95%EA%B7%9C_%EB%AC%B8%EB%B2%95?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="정규 문법">정규 문법</a></li> <li><a href="https://ko-m-wikipedia-org.translate.goog/wiki/%EC%A0%9C%EC%96%B4_%EB%AC%B8%EC%9E%90?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="제어 문자">제어 문자</a></li> </ul> </section> <div class="mw-heading mw-heading2 section-heading" onclick="mfTempOpenSection(8)"> <h2 id="각주">각주</h2> <a role="button" href="https://ko-m-wikipedia-org.translate.goog/w/index.php?title=%EC%A0%95%EA%B7%9C_%ED%91%9C%ED%98%84%EC%8B%9D&action=edit&section=14&_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="부분 편집: 각주" class="cdx-button cdx-button--size-large cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--icon-only cdx-button--weight-quiet "> 편집 </a> </div> <section class="mf-section-8 collapsible-block" id="mf-section-8"> <style data-mw-deduplicate="TemplateStyles:r35556958">.mw-parser-output .reflist{font-size:90%;margin-bottom:0.5em;list-style-type:decimal}.mw-parser-output .reflist .references{font-size:100%;margin-bottom:0;list-style-type:inherit}.mw-parser-output .reflist-columns-2{column-width:30em}.mw-parser-output .reflist-columns-3{column-width:25em}.mw-parser-output .reflist-columns{margin-top:0.3em}.mw-parser-output .reflist-columns ol{margin-top:0}.mw-parser-output .reflist-columns li{page-break-inside:avoid;break-inside:avoid-column}.mw-parser-output .reflist-upper-alpha{list-style-type:upper-alpha}.mw-parser-output .reflist-upper-roman{list-style-type:upper-roman}.mw-parser-output .reflist-lower-alpha{list-style-type:lower-alpha}.mw-parser-output .reflist-lower-greek{list-style-type:lower-greek}.mw-parser-output .reflist-lower-roman{list-style-type:lower-roman}</style> <div class="reflist"> <div class="mw-references-wrap mw-references-columns"> <ol class="references"> <li id="cite_note-1"><a href="https://ko-m-wikipedia-org.translate.goog/wiki/%EC%A0%95%EA%B7%9C_%ED%91%9C%ED%98%84%EC%8B%9D?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB#cite_ref-1">↑</a> <a rel="nofollow" class="external text" href="https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=http://www.regular-expressions.info/tutorial.html">What Regular Expressions Are Exactly - Terminology</a></li> <li id="cite_note-Mitkov2003-2"><a href="https://ko-m-wikipedia-org.translate.goog/wiki/%EC%A0%95%EA%B7%9C_%ED%91%9C%ED%98%84%EC%8B%9D?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB#cite_ref-Mitkov2003_2-0">↑</a> <cite class="citation book">Ruslan Mitkov (2003). <a rel="nofollow" class="external text" href="https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=https://books.google.com/books?id%3Dyl6AnaKtVAkC%26pg%3DPA754">《The Oxford Handbook of Computational Linguistics》</a>. Oxford University Press. 754쪽. <a href="https://ko-m-wikipedia-org.translate.goog/wiki/%EA%B5%AD%EC%A0%9C_%ED%91%9C%EC%A4%80_%EB%8F%84%EC%84%9C_%EB%B2%88%ED%98%B8?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" class="mw-redirect" title="국제 표준 도서 번호">ISBN</a> <a href="https://ko-m-wikipedia-org.translate.goog/wiki/%ED%8A%B9%EC%88%98:%EC%B1%85%EC%B0%BE%EA%B8%B0/978-0-19-927634-9?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="특수:책찾기/978-0-19-927634-9"><bdi>978-0-19-927634-9</bdi></a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=The+Oxford+Handbook+of+Computational+Linguistics&rft.pages=754&rft.pub=Oxford+University+Press&rft.date=2003&rft.isbn=978-0-19-927634-9&rft.au=Ruslan+Mitkov&rft_id=https%3A%2F%2Fbooks.google.com%2Fbooks%3Fid%3Dyl6AnaKtVAkC%26pg%3DPA754&rfr_id=info%3Asid%2Fko.wikipedia.org%3A%EC%A0%95%EA%B7%9C+%ED%91%9C%ED%98%84%EC%8B%9D" class="Z3988"> </li> <li id="cite_note-Lawson2003-3"><a href="https://ko-m-wikipedia-org.translate.goog/wiki/%EC%A0%95%EA%B7%9C_%ED%91%9C%ED%98%84%EC%8B%9D?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB#cite_ref-Lawson2003_3-0">↑</a> <cite class="citation book">Mark V. Lawson (2003년 9월 17일). <a rel="nofollow" class="external text" href="https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=https://books.google.com/books?id%3DMDQ_K7-z2AMC%26pg%3DPA98">《Finite Automata》</a>. CRC Press. 98–100쪽. <a href="https://ko-m-wikipedia-org.translate.goog/wiki/%EA%B5%AD%EC%A0%9C_%ED%91%9C%EC%A4%80_%EB%8F%84%EC%84%9C_%EB%B2%88%ED%98%B8?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" class="mw-redirect" title="국제 표준 도서 번호">ISBN</a> <a href="https://ko-m-wikipedia-org.translate.goog/wiki/%ED%8A%B9%EC%88%98:%EC%B1%85%EC%B0%BE%EA%B8%B0/978-1-58488-255-8?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="특수:책찾기/978-1-58488-255-8"><bdi>978-1-58488-255-8</bdi></a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=Finite+Automata&rft.pages=98-100&rft.pub=CRC+Press&rft.date=2003-09-17&rft.isbn=978-1-58488-255-8&rft.au=Mark+V.+Lawson&rft_id=https%3A%2F%2Fbooks.google.com%2Fbooks%3Fid%3DMDQ_K7-z2AMC%26pg%3DPA98&rfr_id=info%3Asid%2Fko.wikipedia.org%3A%EC%A0%95%EA%B7%9C+%ED%91%9C%ED%98%84%EC%8B%9D" class="Z3988"> </li> <li id="cite_note-Leung,_New_Mexico_State_University,_2010-4"><a href="https://ko-m-wikipedia-org.translate.goog/wiki/%EC%A0%95%EA%B7%9C_%ED%91%9C%ED%98%84%EC%8B%9D?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB#cite_ref-Leung,_New_Mexico_State_University,_2010_4-0">↑</a> <cite class="citation web">Leung, Hing (16 September 2010). <a rel="nofollow" class="external text" href="https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=https://web.archive.org/web/20131205193130/https://www.cs.nmsu.edu/historical-projects/Projects/kleene.9.16.10.pdf">“Regular Languages and Finite Automata”</a> (PDF). 《<a href="https://ko-m-wikipedia-org.translate.goog/wiki/%EB%89%B4%EB%A9%95%EC%8B%9C%EC%BD%94_%EC%A3%BC%EB%A6%BD_%EB%8C%80%ED%95%99%EA%B5%90?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="뉴멕시코 주립 대학교">New Mexico State University</a>》. 5 December 2013에 <a rel="nofollow" class="external text" href="https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=https://www.cs.nmsu.edu/historical-projects/Projects/kleene.9.16.10.pdf">원본 문서</a> (PDF)에서 보존된 문서. 13 August 2019에 확인함. <q>The concept of regular events was introduced by Kleene via the definition of regular expressions.</q></cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=New+Mexico+State+University&rft.atitle=Regular+Languages+and+Finite+Automata&rft.date=2010-09-16&rft.aulast=Leung&rft.aufirst=Hing&rft_id=https%3A%2F%2Fwww.cs.nmsu.edu%2Fhistorical-projects%2FProjects%2Fkleene.9.16.10.pdf&rfr_id=info%3Asid%2Fko.wikipedia.org%3A%EC%A0%95%EA%B7%9C+%ED%91%9C%ED%98%84%EC%8B%9D" class="Z3988"> </li> <li id="cite_note-grep-5">↑ <a href="https://ko-m-wikipedia-org.translate.goog/wiki/%EC%A0%95%EA%B7%9C_%ED%91%9C%ED%98%84%EC%8B%9D?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB#cite_ref-grep_5-0">가</a> <a href="https://ko-m-wikipedia-org.translate.goog/wiki/%EC%A0%95%EA%B7%9C_%ED%91%9C%ED%98%84%EC%8B%9D?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB#cite_ref-grep_5-1">나</a> <a href="https://ko-m-wikipedia-org.translate.goog/wiki/%EC%A0%95%EA%B7%9C_%ED%91%9C%ED%98%84%EC%8B%9D?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB#cite_ref-grep_5-2">다</a> grep(1) man page</li> <li id="cite_note-6"><a href="https://ko-m-wikipedia-org.translate.goog/wiki/%EC%A0%95%EA%B7%9C_%ED%91%9C%ED%98%84%EC%8B%9D?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB#cite_ref-6">↑</a> 잰 고이바에르츠, 스티븐 리바이선 저 김지원 역, 《한 권으로 끝내는 정규표현식》, 한빛미디어(주), 2010, 53쪽</li> <li id="cite_note-7"><a href="https://ko-m-wikipedia-org.translate.goog/wiki/%EC%A0%95%EA%B7%9C_%ED%91%9C%ED%98%84%EC%8B%9D?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB#cite_ref-7">↑</a> <cite class="citation web"><a rel="nofollow" class="external text" href="https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=http://perldoc.perl.org/perlre.html%23PCRE%252fPython-Support">“Perl Regular Expression Documentation”</a>. perldoc.perl.org. 2012년 1월 8일에 확인함.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=Perl+Regular+Expression+Documentation&rft.pub=perldoc.perl.org&rft_id=http%3A%2F%2Fperldoc.perl.org%2Fperlre.html%23PCRE%252fPython-Support&rfr_id=info%3Asid%2Fko.wikipedia.org%3A%EC%A0%95%EA%B7%9C+%ED%91%9C%ED%98%84%EC%8B%9D" class="Z3988"> </li> <li id="cite_note-clarify000-8"><a href="https://ko-m-wikipedia-org.translate.goog/wiki/%EC%A0%95%EA%B7%9C_%ED%91%9C%ED%98%84%EC%8B%9D?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB#cite_ref-clarify000_8-0">↑</a> The character 'm' is not always required to specify a <a href="https://ko-m-wikipedia-org.translate.goog/wiki/%ED%8E%84?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="펄">Perl</a> match operation. For example, <code>m/[^abc]/</code> could also be rendered as <code>/[^abc]/</code>. The 'm' is only necessary if the user wishes to specify a match operation without using a forward-slash as the regex <a href="https://ko-m-wikipedia-org.translate.goog/wiki/%EA%B5%AC%EB%B6%84_%EB%AC%B8%EC%9E%90?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="구분 문자">delimiter</a>. Sometimes it is useful to specify an alternate regex delimiter in order to avoid "<a href="https://ko-m-wikipedia-org.translate.goog/wiki/%EA%B5%AC%EB%B6%84_%EB%AC%B8%EC%9E%90_%EC%B6%A9%EB%8F%8C?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" class="mw-redirect" title="구분 문자 충돌">delimiter collision</a>". See '<a rel="nofollow" class="external text" href="https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=http://perldoc.perl.org/perlre.html">perldoc perlre</a>' for more details.</li> <li id="cite_note-9"><a href="https://ko-m-wikipedia-org.translate.goog/wiki/%EC%A0%95%EA%B7%9C_%ED%91%9C%ED%98%84%EC%8B%9D?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB#cite_ref-9">↑</a> e.g., see <a href="https://ko-m-wikipedia-org.translate.goog/wiki/%EC%9E%90%EB%B0%94_(%ED%94%84%EB%A1%9C%EA%B7%B8%EB%9E%98%EB%B0%8D_%EC%96%B8%EC%96%B4)?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="자바 (프로그래밍 언어)">자바</a> <a href="https://ko-m-wikipedia-org.translate.goog/wiki/%EC%98%A4%EB%9D%BC%EC%9D%BC%EB%A6%AC_%EB%AF%B8%EB%94%94%EC%96%B4?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="오라일리 미디어">in a Nutshell</a> — Page 213, <a href="https://ko-m-wikipedia-org.translate.goog/wiki/%ED%8C%8C%EC%9D%B4%EC%8D%AC?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="파이썬">파이썬</a> Scripting for Computational Science — Page 320, Programming <a href="https://ko-m-wikipedia-org.translate.goog/wiki/PHP?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="PHP">PHP</a> — Page 106</li> <li id="cite_note-10"><a href="https://ko-m-wikipedia-org.translate.goog/wiki/%EC%A0%95%EA%B7%9C_%ED%91%9C%ED%98%84%EC%8B%9D?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB#cite_ref-10">↑</a> 모든 if문은 true(참)을 반환한다</li> <li id="cite_note-Perl_Best_Practices-11"><a href="https://ko-m-wikipedia-org.translate.goog/wiki/%EC%A0%95%EA%B7%9C_%ED%91%9C%ED%98%84%EC%8B%9D?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB#cite_ref-Perl_Best_Practices_11-0">↑</a> <cite class="citation book"><a href="https://ko-m-wikipedia-org.translate.goog/wiki/%EB%8D%B0%EC%9D%B4%EB%AF%B8%EC%96%B8_%EC%BD%98%EC%9B%A8%EC%9D%B4?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="데이미언 콘웨이">Conway, Damian</a> (2005). 〈Regular Expressions, End of String〉. <a rel="nofollow" class="external text" href="https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=https://www.scribd.com/doc/15491004/Perl-Best-Practices">《Perl Best Practices》</a>. <a href="https://ko-m-wikipedia-org.translate.goog/wiki/%EC%98%A4%EB%9D%BC%EC%9D%BC%EB%A6%AC_%EB%AF%B8%EB%94%94%EC%96%B4?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="오라일리 미디어">O'Reilly</a>. 240쪽. <a href="https://ko-m-wikipedia-org.translate.goog/wiki/%EA%B5%AD%EC%A0%9C_%ED%91%9C%EC%A4%80_%EB%8F%84%EC%84%9C_%EB%B2%88%ED%98%B8?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" class="mw-redirect" title="국제 표준 도서 번호">ISBN</a> <a href="https://ko-m-wikipedia-org.translate.goog/wiki/%ED%8A%B9%EC%88%98:%EC%B1%85%EC%B0%BE%EA%B8%B0/978-0-596-00173-5?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="특수:책찾기/978-0-596-00173-5"><bdi>978-0-596-00173-5</bdi></a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=bookitem&rft.atitle=Regular+Expressions%2C+End+of+String&rft.btitle=Perl+Best+Practices&rft.pages=240&rft.pub=O%27Reilly&rft.date=2005&rft.isbn=978-0-596-00173-5&rft.aulast=Conway&rft.aufirst=Damian&rft_id=http%3A%2F%2Fwww.scribd.com%2Fdoc%2F15491004%2FPerl-Best-Practices&rfr_id=info%3Asid%2Fko.wikipedia.org%3A%EC%A0%95%EA%B7%9C+%ED%91%9C%ED%98%84%EC%8B%9D" class="Z3988"> </li> </ol> </div> </div> </section> <div class="mw-heading mw-heading2 section-heading" onclick="mfTempOpenSection(9)"> <h2 id="외부_링크">외부 링크</h2> <a role="button" href="https://ko-m-wikipedia-org.translate.goog/w/index.php?title=%EC%A0%95%EA%B7%9C_%ED%91%9C%ED%98%84%EC%8B%9D&action=edit&section=15&_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB" title="부분 편집: 외부 링크" class="cdx-button cdx-button--size-large cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--icon-only cdx-button--weight-quiet "> 편집 </a> </div> <section class="mf-section-9 collapsible-block" id="mf-section-9"> <ul> <li> <noscript> <img alt="" src="//upload.wikimedia.org/wikipedia/commons/thumb/4/4a/Commons-logo.svg/12px-Commons-logo.svg.png" decoding="async" width="12" height="16" class="mw-file-element" data-file-width="1024" data-file-height="1376"> </noscript><span class="lazy-image-placeholder" style="width: 12px;height: 16px;" data-src="//upload.wikimedia.org/wikipedia/commons/thumb/4/4a/Commons-logo.svg/12px-Commons-logo.svg.png" data-alt="" data-width="12" data-height="16" data-srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/4a/Commons-logo.svg/18px-Commons-logo.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/4a/Commons-logo.svg/24px-Commons-logo.svg.png 2x" data-class="mw-file-element">  위키미디어 공용에 <a class="external text" href="https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=https://commons.wikimedia.org/wiki/Category:Regex?uselang%3Dko">정규 표현식</a> 관련 미디어 분류가 있습니다.</li> <li>(영어) <a rel="nofollow" class="external text" href="https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=https://curlie.org/Computers/Programming/Languages/Regular_Expressions">정규 표현식</a> - Curlie</li> <li>(영어) ISO/IEC 9945-2:1993 <a rel="nofollow" class="external text" href="https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=https://web.archive.org/web/20151107053308/http://www.iso.org/iso/catalogue_detail.htm?csnumber%3D17841">Information technology – Portable Operating System Interface (POSIX) – Part 2: Shell and Utilities</a></li> <li>(영어) ISO/IEC 9945-2:2002 <a rel="nofollow" class="external text" href="https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=https://web.archive.org/web/20151107053309/http://www.iso.org/iso/iso_catalogue/catalogue_ics/catalogue_detail_ics.htm?csnumber%3D37313">Information technology – Portable Operating System Interface (POSIX) – Part 2: System Interfaces</a></li> <li>(영어) ISO/IEC 9945-2:2003 <a rel="nofollow" class="external text" href="https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=https://web.archive.org/web/20151107053310/http://www.iso.org/iso/iso_catalogue/catalogue_ics/catalogue_detail_ics.htm?csnumber%3D38790">Information technology – Portable Operating System Interface (POSIX) – Part 2: System Interfaces</a></li> <li>(영어) ISO/IEC/IEEE 9945:2009 <a rel="nofollow" class="external text" href="https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=https://web.archive.org/web/20151107053310/http://www.iso.org/iso/iso_catalogue/catalogue_ics/catalogue_detail_ics.htm?csnumber%3D50516">Information technology – Portable Operating System Interface (POSIX®) Base Specifications, Issue 7</a></li> </ul> <div class="navbox-styles"> <style data-mw-deduplicate="TemplateStyles:r36480591">.mw-parser-output .hlist dl,.mw-parser-output .hlist ol,.mw-parser-output .hlist ul{margin:0;padding:0}.mw-parser-output .hlist dd,.mw-parser-output .hlist dt,.mw-parser-output .hlist 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id="mw-data-after-content"> <div class="read-more-container"></div> </div> <div id="p-lang"> <h4>언어</h4> <section> <ul id="p-variants" class="minerva-languages"></ul> <ul class="minerva-languages"> <li class="interlanguage-link interwiki-af mw-list-item"><a href="https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=https://af.wikipedia.org/wiki/Regul%25C3%25AAre_uitdrukking" title="Regulêre uitdrukking – 아프리칸스어" lang="af" hreflang="af" data-title="Regulêre uitdrukking" data-language-autonym="Afrikaans" data-language-local-name="아프리칸스어" class="interlanguage-link-target">Afrikaans</a></li> <li class="interlanguage-link interwiki-ar mw-list-item"><a href="https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=https://ar.wikipedia.org/wiki/%25D8%25AA%25D8%25B9%25D8%25A8%25D9%258A%25D8%25B1_%25D9%2586%25D9%2585%25D8%25B7%25D9%258A" title="تعبير نمطي – 아랍어" lang="ar" hreflang="ar" data-title="تعبير نمطي" data-language-autonym="العربية" data-language-local-name="아랍어" class="interlanguage-link-target">العربية</a></li> <li class="interlanguage-link interwiki-az mw-list-item"><a href="https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=https://az.wikipedia.org/wiki/Requlyar_ifad%25C9%2599" title="Requlyar ifadə – 아제르바이잔어" lang="az" hreflang="az" data-title="Requlyar ifadə" data-language-autonym="Azərbaycanca" data-language-local-name="아제르바이잔어" class="interlanguage-link-target">Azərbaycanca</a></li> <li class="interlanguage-link interwiki-bar mw-list-item"><a href="https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=https://bar.wikipedia.org/wiki/Regex" title="Regex – Bavarian" lang="bar" hreflang="bar" data-title="Regex" data-language-autonym="Boarisch" data-language-local-name="Bavarian" class="interlanguage-link-target">Boarisch</a></li> <li class="interlanguage-link interwiki-bg mw-list-item"><a href="https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=https://bg.wikipedia.org/wiki/%25D0%25A0%25D0%25B5%25D0%25B3%25D1%2583%25D0%25BB%25D1%258F%25D1%2580%25D0%25B5%25D0%25BD_%25D0%25B8%25D0%25B7%25D1%2580%25D0%25B0%25D0%25B7" title="Регулярен израз – 불가리아어" lang="bg" hreflang="bg" data-title="Регулярен израз" data-language-autonym="Български" data-language-local-name="불가리아어" class="interlanguage-link-target">Български</a></li> <li class="interlanguage-link interwiki-bn mw-list-item"><a href="https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=https://bn.wikipedia.org/wiki/%25E0%25A6%25B0%25E0%25A7%2587%25E0%25A6%2597%25E0%25A7%2581%25E0%25A6%25B2%25E0%25A6%25BE%25E0%25A6%25B0_%25E0%25A6%258F%25E0%25A6%2595%25E0%25A7%258D%25E0%25A6%25B8%25E0%25A6%25AA%25E0%25A7%258D%25E0%25A6%25B0%25E0%25A7%2587%25E0%25A6%25B6%25E0%25A6%25A8" title="রেগুলার এক্সপ্রেশন – 벵골어" lang="bn" hreflang="bn" data-title="রেগুলার এক্সপ্রেশন" data-language-autonym="বাংলা" data-language-local-name="벵골어" class="interlanguage-link-target">বাংলা</a></li> <li class="interlanguage-link interwiki-ca mw-list-item"><a href="https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=https://ca.wikipedia.org/wiki/Expressi%25C3%25B3_regular" title="Expressió regular – 카탈로니아어" lang="ca" hreflang="ca" data-title="Expressió regular" data-language-autonym="Català" data-language-local-name="카탈로니아어" class="interlanguage-link-target">Català</a></li> <li class="interlanguage-link interwiki-cs mw-list-item"><a href="https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=https://cs.wikipedia.org/wiki/Regul%25C3%25A1rn%25C3%25AD_v%25C3%25BDraz" title="Regulární výraz – 체코어" lang="cs" hreflang="cs" data-title="Regulární výraz" data-language-autonym="Čeština" data-language-local-name="체코어" class="interlanguage-link-target">Čeština</a></li> <li class="interlanguage-link interwiki-da mw-list-item"><a href="https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=https://da.wikipedia.org/wiki/Regul%25C3%25A6rt_udtryk" title="Regulært udtryk – 덴마크어" lang="da" hreflang="da" data-title="Regulært udtryk" data-language-autonym="Dansk" data-language-local-name="덴마크어" class="interlanguage-link-target">Dansk</a></li> <li class="interlanguage-link interwiki-de mw-list-item"><a href="https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=https://de.wikipedia.org/wiki/Regul%25C3%25A4rer_Ausdruck" title="Regulärer Ausdruck – 독일어" lang="de" hreflang="de" data-title="Regulärer Ausdruck" data-language-autonym="Deutsch" data-language-local-name="독일어" class="interlanguage-link-target">Deutsch</a></li> <li class="interlanguage-link interwiki-el mw-list-item"><a href="https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=https://el.wikipedia.org/wiki/%25CE%259A%25CE%25B1%25CE%25BD%25CE%25BF%25CE%25BD%25CE%25B9%25CE%25BA%25CE%25AE_%25CE%25AD%25CE%25BA%25CF%2586%25CF%2581%25CE%25B1%25CF%2583%25CE%25B7" title="Κανονική έκφραση – 그리스어" lang="el" hreflang="el" data-title="Κανονική έκφραση" data-language-autonym="Ελληνικά" data-language-local-name="그리스어" class="interlanguage-link-target">Ελληνικά</a></li> <li class="interlanguage-link interwiki-en mw-list-item"><a href="https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=https://en.wikipedia.org/wiki/Regular_expression" title="Regular expression – 영어" lang="en" hreflang="en" data-title="Regular expression" data-language-autonym="English" data-language-local-name="영어" class="interlanguage-link-target">English</a></li> <li class="interlanguage-link interwiki-eo mw-list-item"><a href="https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=https://eo.wikipedia.org/wiki/Regula_esprimo" title="Regula esprimo – 에스페란토어" lang="eo" hreflang="eo" data-title="Regula esprimo" data-language-autonym="Esperanto" data-language-local-name="에스페란토어" class="interlanguage-link-target">Esperanto</a></li> <li class="interlanguage-link interwiki-es mw-list-item"><a href="https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=https://es.wikipedia.org/wiki/Expresi%25C3%25B3n_regular" title="Expresión regular – 스페인어" lang="es" hreflang="es" data-title="Expresión regular" data-language-autonym="Español" data-language-local-name="스페인어" class="interlanguage-link-target">Español</a></li> <li class="interlanguage-link interwiki-et mw-list-item"><a href="https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=https://et.wikipedia.org/wiki/Regulaaravaldis" title="Regulaaravaldis – 에스토니아어" lang="et" hreflang="et" data-title="Regulaaravaldis" data-language-autonym="Eesti" data-language-local-name="에스토니아어" class="interlanguage-link-target">Eesti</a></li> <li class="interlanguage-link interwiki-eu mw-list-item"><a href="https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=https://eu.wikipedia.org/wiki/Adierazpen_erregular" title="Adierazpen erregular – 바스크어" lang="eu" hreflang="eu" data-title="Adierazpen erregular" data-language-autonym="Euskara" data-language-local-name="바스크어" class="interlanguage-link-target">Euskara</a></li> <li class="interlanguage-link interwiki-fa mw-list-item"><a href="https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=https://fa.wikipedia.org/wiki/%25D8%25B9%25D8%25A8%25D8%25A7%25D8%25B1%25D8%25AA_%25D8%25A8%25D8%25A7%25D9%2582%25D8%25A7%25D8%25B9%25D8%25AF%25D9%2587" title="عبارت باقاعده – 페르시아어" lang="fa" hreflang="fa" data-title="عبارت باقاعده" data-language-autonym="فارسی" data-language-local-name="페르시아어" class="interlanguage-link-target">فارسی</a></li> <li class="interlanguage-link interwiki-fi mw-list-item"><a href="https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=https://fi.wikipedia.org/wiki/S%25C3%25A4%25C3%25A4nn%25C3%25B6llinen_lauseke" title="Säännöllinen lauseke – 핀란드어" lang="fi" hreflang="fi" data-title="Säännöllinen lauseke" data-language-autonym="Suomi" data-language-local-name="핀란드어" class="interlanguage-link-target">Suomi</a></li> <li class="interlanguage-link interwiki-fr mw-list-item"><a href="https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=https://fr.wikipedia.org/wiki/Expression_r%25C3%25A9guli%25C3%25A8re" title="Expression régulière – 프랑스어" lang="fr" hreflang="fr" data-title="Expression régulière" data-language-autonym="Français" data-language-local-name="프랑스어" class="interlanguage-link-target">Français</a></li> <li class="interlanguage-link interwiki-gl mw-list-item"><a href="https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=https://gl.wikipedia.org/wiki/Expresi%25C3%25B3n_regular" title="Expresión regular – 갈리시아어" lang="gl" hreflang="gl" data-title="Expresión regular" data-language-autonym="Galego" data-language-local-name="갈리시아어" class="interlanguage-link-target">Galego</a></li> <li class="interlanguage-link interwiki-he mw-list-item"><a href="https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=https://he.wikipedia.org/wiki/%25D7%2591%25D7%2599%25D7%2598%25D7%2595%25D7%2599_%25D7%25A8%25D7%2592%25D7%2595%25D7%259C%25D7%25A8%25D7%2599" title="ביטוי רגולרי – 히브리어" lang="he" hreflang="he" data-title="ביטוי רגולרי" data-language-autonym="עברית" data-language-local-name="히브리어" class="interlanguage-link-target">עברית</a></li> <li class="interlanguage-link interwiki-hi mw-list-item"><a href="https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=https://hi.wikipedia.org/wiki/%25E0%25A4%25B0%25E0%25A5%2587%25E0%25A4%2597%25E0%25A5%258D%25E0%25A4%25AF%25E0%25A5%2581%25E0%25A4%25B2%25E0%25A4%25B0_%25E0%25A4%258D%25E0%25A4%2595%25E0%25A5%258D%25E0%25A4%25B8%25E0%25A4%25AA%25E0%25A5%258D%25E0%25A4%25B0%25E0%25A5%2588%25E0%25A4%25B6%25E0%25A4%25A8" title="रेग्युलर ऍक्सप्रैशन – 힌디어" lang="hi" hreflang="hi" data-title="रेग्युलर ऍक्सप्रैशन" data-language-autonym="हिन्दी" data-language-local-name="힌디어" class="interlanguage-link-target">हिन्दी</a></li> <li class="interlanguage-link interwiki-hr mw-list-item"><a href="https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=https://hr.wikipedia.org/wiki/Regularni_izraz" title="Regularni izraz – 크로아티아어" lang="hr" hreflang="hr" data-title="Regularni izraz" data-language-autonym="Hrvatski" data-language-local-name="크로아티아어" class="interlanguage-link-target">Hrvatski</a></li> <li class="interlanguage-link interwiki-hu mw-list-item"><a href="https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=https://hu.wikipedia.org/wiki/Regul%25C3%25A1ris_kifejez%25C3%25A9s" title="Reguláris kifejezés – 헝가리어" lang="hu" hreflang="hu" data-title="Reguláris kifejezés" data-language-autonym="Magyar" data-language-local-name="헝가리어" class="interlanguage-link-target">Magyar</a></li> <li class="interlanguage-link interwiki-hy mw-list-item"><a href="https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=https://hy.wikipedia.org/wiki/%25D4%25BF%25D5%25A1%25D5%25B6%25D5%25B8%25D5%25B6%25D5%25A1%25D5%25BE%25D5%25B8%25D6%2580_%25D5%25A1%25D6%2580%25D5%25BF%25D5%25A1%25D5%25B0%25D5%25A1%25D5%25B5%25D5%25BF%25D5%25B8%25D6%2582%25D5%25A9%25D5%25B5%25D5%25B8%25D6%2582%25D5%25B6%25D5%25B6%25D5%25A5%25D6%2580" title="Կանոնավոր արտահայտություններ – 아르메니아어" lang="hy" hreflang="hy" data-title="Կանոնավոր արտահայտություններ" data-language-autonym="Հայերեն" data-language-local-name="아르메니아어" class="interlanguage-link-target">Հայերեն</a></li> <li class="interlanguage-link interwiki-id mw-list-item"><a href="https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=https://id.wikipedia.org/wiki/Ekspresi_reguler" title="Ekspresi reguler – 인도네시아어" lang="id" hreflang="id" data-title="Ekspresi reguler" data-language-autonym="Bahasa Indonesia" data-language-local-name="인도네시아어" class="interlanguage-link-target">Bahasa Indonesia</a></li> <li class="interlanguage-link interwiki-is mw-list-item"><a href="https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=https://is.wikipedia.org/wiki/Regluleg_seg%25C3%25B0" title="Regluleg segð – 아이슬란드어" lang="is" hreflang="is" data-title="Regluleg segð" data-language-autonym="Íslenska" data-language-local-name="아이슬란드어" class="interlanguage-link-target">Íslenska</a></li> <li class="interlanguage-link interwiki-it mw-list-item"><a href="https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=https://it.wikipedia.org/wiki/Espressione_regolare" title="Espressione regolare – 이탈리아어" lang="it" hreflang="it" data-title="Espressione regolare" data-language-autonym="Italiano" data-language-local-name="이탈리아어" class="interlanguage-link-target">Italiano</a></li> <li class="interlanguage-link interwiki-ja mw-list-item"><a href="https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=https://ja.wikipedia.org/wiki/%25E6%25AD%25A3%25E8%25A6%258F%25E8%25A1%25A8%25E7%258F%25BE" title="正規表現 – 일본어" lang="ja" hreflang="ja" data-title="正規表現" data-language-autonym="日本語" data-language-local-name="일본어" class="interlanguage-link-target">日本語</a></li> <li class="interlanguage-link interwiki-ka mw-list-item"><a href="https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=https://ka.wikipedia.org/wiki/%25E1%2583%25A0%25E1%2583%2594%25E1%2583%2592%25E1%2583%25A3%25E1%2583%259A%25E1%2583%2590%25E1%2583%25A0%25E1%2583%25A3%25E1%2583%259A%25E1%2583%2598_%25E1%2583%2592%25E1%2583%2590%25E1%2583%259B%25E1%2583%259D%25E1%2583%25A1%25E1%2583%2590%25E1%2583%25AE%25E1%2583%25A3%25E1%2583%259A%25E1%2583%2594%25E1%2583%2591%25E1%2583%2590" title="რეგულარული გამოსახულება – 조지아어" lang="ka" hreflang="ka" data-title="რეგულარული გამოსახულება" data-language-autonym="ქართული" data-language-local-name="조지아어" class="interlanguage-link-target">ქართული</a></li> <li class="interlanguage-link interwiki-ky mw-list-item"><a href="https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=https://ky.wikipedia.org/wiki/%25D0%25A0%25D0%25B5%25D0%25B3%25D1%2583%25D0%25BB%25D1%258F%25D1%2580%25D0%25B4%25D1%258B%25D0%25BA_%25D1%2582%25D1%2583%25D1%258E%25D0%25BD%25D1%2582%25D0%25BC%25D0%25B0" title="Регулярдык туюнтма – 키르기스어" lang="ky" hreflang="ky" data-title="Регулярдык туюнтма" data-language-autonym="Кыргызча" data-language-local-name="키르기스어" class="interlanguage-link-target">Кыргызча</a></li> <li class="interlanguage-link interwiki-lv mw-list-item"><a href="https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=https://lv.wikipedia.org/wiki/Regul%25C4%2581r%25C4%2581_izteiksme" title="Regulārā izteiksme – 라트비아어" lang="lv" hreflang="lv" data-title="Regulārā izteiksme" data-language-autonym="Latviešu" data-language-local-name="라트비아어" class="interlanguage-link-target">Latviešu</a></li> <li class="interlanguage-link interwiki-mk mw-list-item"><a href="https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=https://mk.wikipedia.org/wiki/%25D0%25A0%25D0%25B5%25D0%25B3%25D1%2583%25D0%25BB%25D0%25B0%25D1%2580%25D0%25B5%25D0%25BD_%25D0%25B8%25D0%25B7%25D1%2580%25D0%25B0%25D0%25B7" title="Регуларен израз – 마케도니아어" lang="mk" hreflang="mk" data-title="Регуларен израз" data-language-autonym="Македонски" data-language-local-name="마케도니아어" class="interlanguage-link-target">Македонски</a></li> <li class="interlanguage-link interwiki-ml mw-list-item"><a href="https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=https://ml.wikipedia.org/wiki/%25E0%25B4%25B1%25E0%25B5%2586%25E0%25B4%2597%25E0%25B5%2581%25E0%25B4%25B2%25E0%25B5%25BC_%25E0%25B4%258E%25E0%25B4%2595%25E0%25B5%258D%25E0%25B4%25B8%25E0%25B5%258D%25E0%25B4%25AA%25E0%25B5%258D%25E0%25B4%25B0%25E0%25B4%25B7%25E0%25B4%25A8%25E0%25B5%2581%25E0%25B4%2595%25E0%25B5%25BE" title="റെഗുലർ എക്സ്പ്രഷനുകൾ – 말라얄람어" lang="ml" hreflang="ml" data-title="റെഗുലർ എക്സ്പ്രഷനുകൾ" data-language-autonym="മലയാളം" data-language-local-name="말라얄람어" class="interlanguage-link-target">മലയാളം</a></li> <li class="interlanguage-link interwiki-mwl mw-list-item"><a href="https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=https://mwl.wikipedia.org/wiki/Spresson_Regular" title="Spresson Regular – 미란데어" lang="mwl" hreflang="mwl" data-title="Spresson Regular" data-language-autonym="Mirandés" data-language-local-name="미란데어" class="interlanguage-link-target">Mirandés</a></li> <li class="interlanguage-link interwiki-nl mw-list-item"><a href="https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=https://nl.wikipedia.org/wiki/Reguliere_expressie" title="Reguliere expressie – 네덜란드어" lang="nl" hreflang="nl" data-title="Reguliere expressie" data-language-autonym="Nederlands" data-language-local-name="네덜란드어" class="interlanguage-link-target">Nederlands</a></li> <li class="interlanguage-link interwiki-no mw-list-item"><a href="https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=https://no.wikipedia.org/wiki/Regul%25C3%25A6rt_uttrykk" title="Regulært uttrykk – 노르웨이어(보크말)" lang="nb" hreflang="nb" data-title="Regulært uttrykk" data-language-autonym="Norsk bokmål" data-language-local-name="노르웨이어(보크말)" class="interlanguage-link-target">Norsk bokmål</a></li> <li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=https://pl.wikipedia.org/wiki/Wyra%25C5%25BCenie_regularne" title="Wyrażenie regularne – 폴란드어" lang="pl" hreflang="pl" data-title="Wyrażenie regularne" data-language-autonym="Polski" data-language-local-name="폴란드어" class="interlanguage-link-target">Polski</a></li> <li class="interlanguage-link interwiki-pnb mw-list-item"><a href="https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=https://pnb.wikipedia.org/wiki/%25D8%25B1%25DB%258C%25D8%25AC%25DB%258C%25DA%25A9%25D8%25B3" title="ریجیکس – Western Punjabi" lang="pnb" hreflang="pnb" data-title="ریجیکس" data-language-autonym="پنجابی" data-language-local-name="Western Punjabi" class="interlanguage-link-target">پنجابی</a></li> <li class="interlanguage-link interwiki-pt mw-list-item"><a href="https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=https://pt.wikipedia.org/wiki/Express%25C3%25A3o_regular" title="Expressão regular – 포르투갈어" lang="pt" hreflang="pt" data-title="Expressão regular" data-language-autonym="Português" data-language-local-name="포르투갈어" class="interlanguage-link-target">Português</a></li> <li class="interlanguage-link interwiki-ro mw-list-item"><a href="https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=https://ro.wikipedia.org/wiki/Expresie_regulat%25C4%2583" title="Expresie regulată – 루마니아어" lang="ro" hreflang="ro" data-title="Expresie regulată" data-language-autonym="Română" data-language-local-name="루마니아어" class="interlanguage-link-target">Română</a></li> <li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=https://ru.wikipedia.org/wiki/%25D0%25A0%25D0%25B5%25D0%25B3%25D1%2583%25D0%25BB%25D1%258F%25D1%2580%25D0%25BD%25D1%258B%25D0%25B5_%25D0%25B2%25D1%258B%25D1%2580%25D0%25B0%25D0%25B6%25D0%25B5%25D0%25BD%25D0%25B8%25D1%258F" title="Регулярные выражения – 러시아어" lang="ru" hreflang="ru" data-title="Регулярные выражения" data-language-autonym="Русский" data-language-local-name="러시아어" class="interlanguage-link-target">Русский</a></li> <li class="interlanguage-link interwiki-simple mw-list-item"><a href="https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=https://simple.wikipedia.org/wiki/Regular_expression" title="Regular expression – Simple English" lang="en-simple" hreflang="en-simple" data-title="Regular expression" data-language-autonym="Simple English" data-language-local-name="Simple English" class="interlanguage-link-target">Simple English</a></li> <li class="interlanguage-link interwiki-sk mw-list-item"><a href="https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=https://sk.wikipedia.org/wiki/Regul%25C3%25A1rny_v%25C3%25BDraz" title="Regulárny výraz – 슬로바키아어" lang="sk" hreflang="sk" data-title="Regulárny výraz" data-language-autonym="Slovenčina" data-language-local-name="슬로바키아어" class="interlanguage-link-target">Slovenčina</a></li> <li class="interlanguage-link interwiki-sl mw-list-item"><a href="https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=https://sl.wikipedia.org/wiki/Regularni_izraz" title="Regularni izraz – 슬로베니아어" lang="sl" hreflang="sl" data-title="Regularni izraz" data-language-autonym="Slovenščina" data-language-local-name="슬로베니아어" class="interlanguage-link-target">Slovenščina</a></li> <li class="interlanguage-link interwiki-sq mw-list-item"><a href="https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=https://sq.wikipedia.org/wiki/Shprehje_e_rregullt" title="Shprehje e rregullt – 알바니아어" lang="sq" hreflang="sq" data-title="Shprehje e rregullt" data-language-autonym="Shqip" data-language-local-name="알바니아어" class="interlanguage-link-target">Shqip</a></li> <li class="interlanguage-link interwiki-sr mw-list-item"><a href="https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=https://sr.wikipedia.org/wiki/Regularni_izraz" title="Regularni izraz – 세르비아어" lang="sr" hreflang="sr" data-title="Regularni izraz" data-language-autonym="Српски / srpski" data-language-local-name="세르비아어" class="interlanguage-link-target">Српски / srpski</a></li> <li class="interlanguage-link interwiki-sv mw-list-item"><a href="https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=https://sv.wikipedia.org/wiki/Regulj%25C3%25A4ra_uttryck" title="Reguljära uttryck – 스웨덴어" lang="sv" hreflang="sv" data-title="Reguljära uttryck" data-language-autonym="Svenska" data-language-local-name="스웨덴어" class="interlanguage-link-target">Svenska</a></li> <li class="interlanguage-link interwiki-ta mw-list-item"><a href="https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=https://ta.wikipedia.org/wiki/%25E0%25AE%259A%25E0%25AF%2581%25E0%25AE%25B0%25E0%25AF%2581%25E0%25AE%2599%25E0%25AF%258D%25E0%25AE%2595%25E0%25AF%2581%25E0%25AE%25B1%25E0%25AE%25BF%25E0%25AE%25A4%25E0%25AF%258D%25E0%25AE%25A4%25E0%25AF%258A%25E0%25AE%259F%25E0%25AE%25B0%25E0%25AF%258D" title="சுருங்குறித்தொடர் – 타밀어" lang="ta" hreflang="ta" data-title="சுருங்குறித்தொடர்" data-language-autonym="தமிழ்" data-language-local-name="타밀어" class="interlanguage-link-target">தமிழ்</a></li> <li class="interlanguage-link interwiki-th mw-list-item"><a href="https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=https://th.wikipedia.org/wiki/%25E0%25B8%2599%25E0%25B8%25B4%25E0%25B8%259E%25E0%25B8%2588%25E0%25B8%2599%25E0%25B9%258C%25E0%25B8%259B%25E0%25B8%25A3%25E0%25B8%2581%25E0%25B8%2595%25E0%25B8%25B4" title="นิพจน์ปรกติ – 태국어" lang="th" hreflang="th" data-title="นิพจน์ปรกติ" data-language-autonym="ไทย" data-language-local-name="태국어" class="interlanguage-link-target">ไทย</a></li> <li class="interlanguage-link interwiki-tr mw-list-item"><a href="https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=https://tr.wikipedia.org/wiki/D%25C3%25BCzenli_ifade" title="Düzenli ifade – 터키어" lang="tr" hreflang="tr" data-title="Düzenli ifade" data-language-autonym="Türkçe" data-language-local-name="터키어" class="interlanguage-link-target">Türkçe</a></li> <li class="interlanguage-link interwiki-uk mw-list-item"><a href="https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=https://uk.wikipedia.org/wiki/%25D0%25A0%25D0%25B5%25D0%25B3%25D1%2583%25D0%25BB%25D1%258F%25D1%2580%25D0%25BD%25D0%25B8%25D0%25B9_%25D0%25B2%25D0%25B8%25D1%2580%25D0%25B0%25D0%25B7" title="Регулярний вираз – 우크라이나어" lang="uk" hreflang="uk" data-title="Регулярний вираз" data-language-autonym="Українська" data-language-local-name="우크라이나어" class="interlanguage-link-target">Українська</a></li> <li class="interlanguage-link interwiki-ur mw-list-item"><a href="https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=https://ur.wikipedia.org/wiki/%25D8%25B1%25DB%258C%25D8%25AC%25DB%258C%25DA%25A9%25D8%25B3" title="ریجیکس – 우르두어" lang="ur" hreflang="ur" data-title="ریجیکس" data-language-autonym="اردو" data-language-local-name="우르두어" class="interlanguage-link-target">اردو</a></li> <li class="interlanguage-link interwiki-vi mw-list-item"><a href="https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=https://vi.wikipedia.org/wiki/Bi%25E1%25BB%2583u_th%25E1%25BB%25A9c_ch%25C3%25ADnh_quy" title="Biểu thức chính quy – 베트남어" lang="vi" hreflang="vi" data-title="Biểu thức chính quy" data-language-autonym="Tiếng Việt" data-language-local-name="베트남어" class="interlanguage-link-target">Tiếng Việt</a></li> <li class="interlanguage-link interwiki-wa mw-list-item"><a href="https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=https://wa.wikipedia.org/wiki/Er%25C3%25AEl%25C3%25AAye_ratourneure" title="Erîlêye ratourneure – 왈론어" lang="wa" hreflang="wa" data-title="Erîlêye ratourneure" data-language-autonym="Walon" data-language-local-name="왈론어" class="interlanguage-link-target">Walon</a></li> <li class="interlanguage-link interwiki-wuu mw-list-item"><a href="https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=https://wuu.wikipedia.org/wiki/%25E6%25AD%25A3%25E5%2588%2599%25E8%25A1%25A8%25E8%25BE%25BE%25E5%25BC%258F" title="正则表达式 – 우어" lang="wuu" hreflang="wuu" data-title="正则表达式" data-language-autonym="吴语" data-language-local-name="우어" class="interlanguage-link-target">吴语</a></li> <li class="interlanguage-link interwiki-zh mw-list-item"><a href="https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=https://zh.wikipedia.org/wiki/%25E6%25AD%25A3%25E5%2588%2599%25E8%25A1%25A8%25E8%25BE%25BE%25E5%25BC%258F" title="正则表达式 – 중국어" lang="zh" hreflang="zh" data-title="正则表达式" data-language-autonym="中文" data-language-local-name="중국어" class="interlanguage-link-target">中文</a></li> <li class="interlanguage-link interwiki-zh-yue mw-list-item"><a href="https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=https://zh-yue.wikipedia.org/wiki/%25E6%25AD%25A3%25E5%2589%2587%25E8%25A1%25A8%25E9%2581%2594%25E5%25BC%258F" title="正則表達式 – 광둥어" lang="yue" hreflang="yue" data-title="正則表達式" data-language-autonym="粵語" data-language-local-name="광둥어" class="interlanguage-link-target">粵語</a></li> </ul> </section> </div> <div class="minerva-footer-logo"> <img src="/static/images/mobile/copyright/wikipedia-wordmark-ko.svg" alt="위키백과" width="120" height="28" style="width: 7.5em; height: 1.75em;"> </div> <ul id="footer-info" class="footer-info hlist hlist-separated"> <li id="footer-info-lastmod">이 문서는 2024년 6월 30일 (일) 22:58에 마지막으로 편집되었습니다.</li> <li id="footer-info-copyright">별도로 명시하지 않은 경우, 내용은 <a class="external" rel="nofollow" href="https://translate.google.com/website?sl=auto&tl=en&hl=en-GB&u=https://creativecommons.org/licenses/by-sa/4.0/deed.ko">CC BY-SA 4.0</a>에 따라 사용할 수 있습니다.</li> </ul> <ul id="footer-places" class="footer-places hlist hlist-separated"> <li id="footer-places-privacy"><a 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