Regular Expressions 101

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An explanation of your regex will be automatically generated as you type.
Detailed match information will be displayed here automatically.
  • All Tokens
  • Common Tokens
  • General Tokens
  • Anchors
  • Meta Sequences
  • Quantifiers
  • Group Constructs
  • Character Classes
  • Flags/Modifiers
  • Substitution
  • A single character of: a, b or c
    [abc]
  • A character except: a, b or c
    [^abc]
  • A character in the range: a-z
    [a-z]
  • A character not in the range: a-z
    [^a-z]
  • A character in the range: a-z or A-Z
    [a-zA-Z]
  • Any single character
    .
  • Alternate - match either a or b
    a|b
  • Any whitespace character
    \s
  • Any non-whitespace character
    \S
  • Any digit
    \d
  • Any non-digit
    \D
  • Any word character
    \w
  • Any non-word character
    \W
  • Non-capturing group
    (?:...)
  • Capturing group
    (...)
  • Zero or one of a
    a?
  • Zero or more of a
    a*
  • One or more of a
    a+
  • Exactly 3 of a
    a{3}
  • 3 or more of a
    a{3,}
  • Between 3 and 6 of a
    a{3,6}
  • Start of string
    ^
  • End of string
    $
  • A word boundary
    \b
  • Non-word boundary
    \B

Regular Expression
No Match

r"
"
mg

Test String

Code Generator

Language

Generated Code

package main import ( "regexp" "fmt" ) func main() { var re = regexp.MustCompile(`(?m)var[\s]+data[\s]?=[\s]?({[^;]*});`) var str = `<link rel="shortcut icon" href="/static/frontend/images/favicons/favicon.ico"/> <meta name="og:title" content="Продажа 3-комнатной квартиры - №25234817: Абылай хана — Маметова, Алматы, Алмалинский р-н — за 25500000 — Крыша"/> <meta name="og:url" content="https://krisha.kz/a/show/25234817"/> <meta name="og:image" content="https://alaps-photos-kr.kcdn.kz/1d/30a8f294c49e32da5be7040661cadf/1-400x300.jpg"/> <meta name="og:site_name" content="Krisha.kz"/> <meta property="fb:pages" content="453858631376956" /> <script > var data = {"advert":{"id":25234817,"storage":"live","commentsType":"adv","isCommentable":true,"isCommentableByEveryone":false,"isOnMap":true,"hasPrice":true,"photos":[{"src":"https://alaps-photos-kr.kcdn.kz/1d/30a8f294c49e32da5be7040661cadf/1-full.jpg","w":1200,"h":800},{"src":"https://alaps-photos-kr.kcdn.kz/1d/30a8f294c49e32da5be7040661cadf/8-full.jpg","w":1200,"h":800},{"src":"https://alaps-photos-kr.kcdn.kz/1d/30a8f294c49e32da5be7040661cadf/9-full.jpg","w":1200,"h":800},{"src":"https://alaps-photos-kr.kcdn.kz/1d/30a8f294c49e32da5be7040661cadf/10-full.jpg","w":1200,"h":800},{"src":"https://alaps-photos-kr.kcdn.kz/1d/30a8f294c49e32da5be7040661cadf/11-full.jpg","w":1200,"h":800},{"src":"https://alaps-photos-kr.kcdn.kz/1d/30a8f294c49e32da5be7040661cadf/12-full.jpg","w":1200,"h":800},{"src":"https://alaps-photos-kr.kcdn.kz/1d/30a8f294c49e32da5be7040661cadf/13-full.jpg","w":1200,"h":800},{"src":"https://alaps-photos-kr.kcdn.kz/1d/30a8f294c49e32da5be7040661cadf/14-full.jpg","w":1200,"h":800},{"src":"https://alaps-photos-kr.kcdn.kz/1d/30a8f294c49e32da5be7040661cadf/15-full.jpg","w":1200,"h":800},{"src":"https://alaps-photos-kr.kcdn.kz/1d/30a8f294c49e32da5be7040661cadf/16-full.jpg","w":1200,"h":800},{"src":"https://alaps-photos-kr.kcdn.kz/1d/30a8f294c49e32da5be7040661cadf/17-full.jpg","w":1200,"h":800},{"src":"https://alaps-photos-kr.kcdn.kz/1d/30a8f294c49e32da5be7040661cadf/18-full.jpg","w":1200,"h":800},{"src":"https://alaps-photos-kr.kcdn.kz/1d/30a8f294c49e32da5be7040661cadf/19-full.jpg","w":900,"h":900},{"src":"https://alaps-photos-kr.kcdn.kz/1d/30a8f294c49e32da5be7040661cadf/20-full.jpg","w":1200,"h":800},{"src":"https://alaps-photos-kr.kcdn.kz/1d/30a8f294c49e32da5be7040661cadf/21-full.jpg","w":1200,"h":800},{"src":"https://alaps-photos-kr.kcdn.kz/1d/30a8f294c49e32da5be7040661cadf/22-full.jpg","w":1200,"h":800},{"src":"https://alaps-photos-kr.kcdn.kz/1d/30a8f294c49e32da5be7040661cadf/23-full.jpg","w":1200,"h":800},{"src":"https://alaps-photos-kr.kcdn.kz/1d/30a8f294c49e32da5be7040661cadf/24-full.jpg","w":1127,"h":900},{"src":"https://alaps-photos-kr.kcdn.kz/1d/30a8f294c49e32da5be7040661cadf/25-full.jpg","w":1200,"h":800},{"src":"https://alaps-photos-kr.kcdn.kz/1d/30a8f294c49e32da5be7040661cadf/26-full.jpg","w":1200,"h":800}],"map":{"lat":43.267643,"lon":76.939123,"zoom":15,"type":"yandex#map"}},"analysisUrl":"/analytics/aPriceAnalysis/","creditIsEnabled":true,"infrastructure":{"data":{"data":{"tags":{"pharmacy":{"title":"Аптеки"},"hospital":{"title":"Поликлиники"},"kindergarten":{"title":"Детсады"},"school":{"title":"Школы и Вузы"},"cafe":{"title":"Рестораны, кафе"},"cinema":{"title":"Кино и театры"},"shop":{"title":"Магазины и ТРК"}},"regions":[{"id":67,"title":"Алматы","bounds":[[43.469093,76.72599],[43.462692,77.1084],[43.108051,77.096182],[43.114387,76.715991],[43.469093,76.72599]],"rubrics":{"cafe":["9429531978963634","9429531978891425","9429531978891429","9429531978891426","9429531978891428","9429531978891430","9429531978907055"],"cinema":["9429531978891456","9429531978891463"],"pharmacy":["9429531978891471"],"hospital":["9429531978891465","9429531978891488","9429531978915029","9429531978891466","9429531978891489"],"school":["9429531978891494","9429531978891947","9429531978891495","9429531978891510","9429531978906551","9429531978891496","9429531978891512","9429531978891509"],"kindergarten":["9429531978891501","9429531979001669"],"shop":["9429531978891637","9429531978891875"]}},{"id":68,"title":"Астана","bounds":[[51.371885,71.18796],[51.35684,71.882791],[50.934375,71.856572],[50.949196,71.168047],[51.371885,71.18796]],"rubrics":{"cafe":["9570269467318962","9570269467246753","9570269467246757","9570269467246754","9570269467246756","9570269467246758","9570269467262383"],"cinema":["9570269467246784","9570269467246791"],"pharmacy":["9570269467246799"],"hospital":["9570269467246793","9570269467246816","9570269467270357","9570269467246794","9570269467246817"],"school":["9570269467246822","9570269467247275","9570269467246823","9570269467246838","9570269467261879","9570269467246824","9570269467246837"],"kindergarten":["9570269467246829","9570269467356997"],"shop":["9570269467246965","9570269467247203"]}},{"id":84,"title":"Караганда","bounds":[[50.132623,73.394974],[49.658415,73.41063],[49.64993,72.880917],[50.123995,72.860052],[50.132623,73.394974]],"rubrics":{"cafe":["11822069281004210","11822069280932001","11822069280932005","11822069280932002","11822069280932004","11822069280932006","11822069280947631"],"cinema":["11822069280932032","11822069280932039"],"pharmacy":["11822069280932047"],"hospital":["11822069280932041","11822069280932064","11822069280932042","11822069280932065"],"school":["11822069280932070","11822069280932523","11822069280932071","11822069280932086","11822069280947127","11822069280932072","11822069280932085"],"kindergarten":["11822069280932077","11822069281042245"],"shop":["11822069280932213","11822069280932451"]}},{"id":111,"title":"Павлодар","bounds":[[52.439519,76.677763],[52.430303,77.2347],[52.005015,77.213446],[52.014092,76.661799],[52.439519,76.677763]],"rubrics":{"cafe":["15621981466525857","15621981466525861","15621981466525858","15621981466525860","15621981466525862","15621981466541487"],"cinema":["15621981466525888","15621981466525895"],"pharmacy":["15621981466525903"],"hospital":["15621981466525897","15621981466525920","15621981466549461","15621981466525898","15621981466525921"],"school":["15621981466525926","15621981466526379","15621981466525927","15621981466525942","15621981466540983","15621981466525928","15621981466525941"],"kindergarten":["15621981466525933","15621981466636101"],"shop":["15621981466526069","15621981466526307"]}},{"id":162,"title":"Уральск","bounds":[[51.284431,51.526154],[51.109229,51.567598],[51.110327,51.255488],[51.285243,51.256457],[51.284431,51.526154]],"rubrics":{"cafe":["22799593372719794","22799593372647585","22799593372647589","22799593372647586","22799593372647588","22799593372647590","22799593372663215"],"cinema":["22799593372647616","22799593372647623"],"pharmacy":["22799593372647631"],"hospital":["22799593372647625","22799593372647648","22799593372671189","22799593372647649"],"school":["22799593372647654","22799593372648107","22799593372647670","22799593372662711","22799593372647656","22799593372647669"],"kindergarten":["22799593372647661","22799593372757829"],"shop":["22799593372647797","22799593372648035"]}},{"id":91,"title":"Усть-Каменогорск","bounds":[[49.862906,82.444837],[50.059192,82.450724],[50.054212,82.805717],[49.857959,82.798391],[49.862906,82.444837]],"rubrics":{"cafe":["12807231699491506","12807231699419297","12807231699419301","12807231699419298","12807231699419300","12807231699419302","12807231699434927"],"cinema":["12807231699419328","12807231699419335"],"pharmacy":["12807231699419343"],"hospital":["12807231699419337","12807231699419360","12807231699442901","12807231699419338","12807231699419361"],"school":["12807231699419366","12807231699419819","12807231699419382","12807231699434423","12807231699419368","12807231699419384","12807231699419381"],"kindergarten":["12807231699419373","12807231699529541"],"shop":["12807231699419509","12807231699419747"]}},{"id":161,"title":"Шымкент","bounds":[[42.43852,69.416245],[42.436468,69.802137],[42.242484,69.799675],[42.244521,69.414967],[42.43852,69.416245]],"rubrics":{"cafe":["22658855884364466","22658855884292257","22658855884292261","22658855884292258","22658855884292260","22658855884292262","22658855884307887"],"cinema":["22658855884292288","22658855884292295"],"pharmacy":["22658855884292303"],"hospital":["22658855884292297","22658855884292320","22658855884315861","22658855884292298","22658855884292321"],"school":["22658855884292326","22658855884292779","22658855884292327","22658855884292342","22658855884307383","22658855884292328","22658855884292341"],"kindergarten":["22658855884292333","22658855884402501"],"shop":["22658855884292469","22658855884292707"]}}]},"baseUrl":"https://catalog.api.2gis.ru/2.0/","key":"rutogo9647"},"button":"Инфраструктура","title":"Инфраструктура","user":"_2gis_user","sid":"_2gis_session"},"crime":{"api":"https://api.krisha.kz/geodata/crime","button":"Преступность","title":"Показатели преступности"},"svgIconsUrl":"//krisha.kz/static/frontend/svg/svg-symbols.svg","svgIconsDate":1497612417,"app":"Frontend","baseHostname":"krisha.kz","cookieDomain":".krisha.kz","isRemoteResourcesEnabled":true,"isDebug":false,"route":"a:show","controller":"a","action":"show","user":{"isGuest":true,"isPro":false,"isCompany":false,"id":null,"locale":"ru","xdmAssetUrl":"https://id.kolesa.kz/authToken.js"},"photoHost":"photos-kr.kcdn.kz","views":{"location":"98fb0972"}}; </script> <!--[if lt IE 9]> <script src="//krisha.kz/static/frontend/js/main-vendor-legacy-20170616172657.js"></script> <![endif]--> <link rel="stylesheet" type="text/css" href="//krisha.kz/static/frontend/css/main-vendor.css" /> <link rel="stylesheet" type="text/css" href="//krisha.kz/static/frontend/css/main-20170616172657.css" /> <script type="text/javascript" src="//code-br.kcdn.kz/js/client.min.js" charset="utf-8"></script> <script type="application/javascript">var client = kolesaBannerClient; var YaDirectParams = { stat_id: 5, ad_format: "direct", font_size: 1, type: "oldHorizontal", limit: 1, title_font_size: 3, links_underline: true, site_bg_color: "FFF2CF", bg_color: "FFF2CF", title_color: "996633", url_color: "0066CC", text_color: "996633", hover_color: "FF0000", favicon: true, no_sitelinks: true }; client.setSiteId(12).enableSingleRequest() .addTag('category', 'Продажа') .addTag('type', 'Квартиры') .addTag('city', 'Алматы') .addTag('url', '/a/show/*') .addTag('price', '18000000-36000000') .addTag('gender', '')` for i, match := range re.FindAllString(str, -1) { fmt.Println(match, "found at index", i) } }

Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for Golang, please visit: https://golang.org/pkg/regexp/