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

/
/
gmi

Test String

Code Generator

Language

Generated Code

import Foundation let pattern = #"^https?:\/\/(www\.)?google\.(com(\.(a[fgiru]|b[dhnorz]|c[ouy]|do|e[cgt]|fj|g[hit]|hk|jm|k[hw]|l[by]|m[mtxy]|n[agip]|om|p[aeghkry]|qa|s[abglv]|t[jrw]|u[ay]|v[cn]))?|a[delmstz]|b[aefgijsty]|c[adfghilmnvz]|d[ejkmz]|e[es]|f[imr]|g[aeglmry]|h[knrtu]|i[emqst]|j[eop]|k[igz]|l[aiktuv]|m[degklnsuvw]|n[eloru]|p[lnst]|r[osuw]|s[cehiknomrt]|t[dglmnot]|v[gu]|ws|cat|co\.(ao|bw|c[kr]|i[dln]|jp|k[er]|ls|m[az]|nz|t[hz]|u[gkz]|v[ei]|z[amw]))\/(search\S*?(tbm=isch|udm=2)|imgres)\S+"# let regex = try! NSRegularExpression(pattern: pattern, options: [.anchorsMatchLines, .caseInsensitive]) let testString = #""" https://www.google.com/search*tbm=isch* https://www.google.ad/search*tbm=isch* https://www.google.ae/search*tbm=isch* https://www.google.com.af/search*tbm=isch* https://www.google.com.ag/search*tbm=isch* https://www.google.com.ai/search*tbm=isch* https://www.google.al/search*tbm=isch* https://www.google.am/search*tbm=isch* https://www.google.co.ao/search*tbm=isch* https://www.google.com.ar/search*tbm=isch* https://www.google.as/search*tbm=isch* https://www.google.at/search*tbm=isch* https://www.google.com.au/search*tbm=isch* https://www.google.az/search*tbm=isch* https://www.google.ba/search*tbm=isch* https://www.google.com.bd/search*tbm=isch* https://www.google.be/search*tbm=isch* https://www.google.bf/search*tbm=isch* https://www.google.bg/search*tbm=isch* https://www.google.com.bh/search*tbm=isch* https://www.google.bi/search*tbm=isch* https://www.google.bj/search*tbm=isch* https://www.google.com.bn/search*tbm=isch* https://www.google.com.bo/search*tbm=isch* https://www.google.com.br/search*tbm=isch* https://www.google.bs/search*tbm=isch* https://www.google.bt/search*tbm=isch* https://www.google.co.bw/search*tbm=isch* https://www.google.by/search*tbm=isch* https://www.google.com.bz/search*tbm=isch* https://www.google.ca/search*tbm=isch* https://www.google.cd/search*tbm=isch* https://www.google.cf/search*tbm=isch* https://www.google.cg/search*tbm=isch* https://www.google.ch/search*tbm=isch* https://www.google.ci/search*tbm=isch* https://www.google.co.ck/search*tbm=isch* https://www.google.cl/search*tbm=isch* https://www.google.cm/search*tbm=isch* https://www.google.cn/search*tbm=isch* https://www.google.com.co/search*tbm=isch* https://www.google.co.cr/search*tbm=isch* https://www.google.com.cu/search*tbm=isch* https://www.google.cv/search*tbm=isch* https://www.google.com.cy/search*tbm=isch* https://www.google.cz/search*tbm=isch* https://www.google.de/search*tbm=isch* https://www.google.dj/search*tbm=isch* https://www.google.dk/search*tbm=isch* https://www.google.dm/search*tbm=isch* https://www.google.com.do/search*tbm=isch* https://www.google.dz/search*tbm=isch* https://www.google.com.ec/search*tbm=isch* https://www.google.ee/search*tbm=isch* https://www.google.com.eg/search*tbm=isch* https://www.google.es/search*tbm=isch* https://www.google.com.et/search*tbm=isch* https://www.google.fi/search*tbm=isch* https://www.google.com.fj/search*tbm=isch* https://www.google.fm/search*tbm=isch* https://www.google.fr/search*tbm=isch* https://www.google.ga/search*tbm=isch* https://www.google.ge/search*tbm=isch* https://www.google.gg/search*tbm=isch* https://www.google.com.gh/search*tbm=isch* https://www.google.com.gi/search*tbm=isch* https://www.google.gl/search*tbm=isch* https://www.google.gm/search*tbm=isch* https://www.google.gr/search*tbm=isch* https://www.google.com.gt/search*tbm=isch* 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https://www.google.co.kr/search*tbm=isch* https://www.google.com.kw/search*tbm=isch* https://www.google.kz/search*tbm=isch* https://www.google.la/search*tbm=isch* https://www.google.com.lb/search*tbm=isch* https://www.google.li/search*tbm=isch* https://www.google.lk/search*tbm=isch* https://www.google.co.ls/search*tbm=isch* https://www.google.lt/search*tbm=isch* https://www.google.lu/search*tbm=isch* https://www.google.lv/search*tbm=isch* https://www.google.com.ly/search*tbm=isch* https://www.google.co.ma/search*tbm=isch* https://www.google.md/search*tbm=isch* https://www.google.me/search*tbm=isch* https://www.google.mg/search*tbm=isch* https://www.google.mk/search*tbm=isch* https://www.google.ml/search*tbm=isch* https://www.google.com.mm/search*tbm=isch* https://www.google.mn/search*tbm=isch* https://www.google.ms/search*tbm=isch* https://www.google.com.mt/search*tbm=isch* https://www.google.mu/search*tbm=isch* https://www.google.mv/search*tbm=isch* https://www.google.mw/search*tbm=isch* https://www.google.com.mx/search*tbm=isch* https://www.google.com.my/search*tbm=isch* https://www.google.co.mz/search*tbm=isch* https://www.google.com.na/search*tbm=isch* https://www.google.com.ng/search*tbm=isch* https://www.google.com.ni/search*tbm=isch* https://www.google.ne/search*tbm=isch* https://www.google.nl/search*tbm=isch* https://www.google.no/search*tbm=isch* https://www.google.com.np/search*tbm=isch* https://www.google.nr/search*tbm=isch* https://www.google.nu/search*tbm=isch* https://www.google.co.nz/search*tbm=isch* https://www.google.com.om/search*tbm=isch* https://www.google.com.pa/search*tbm=isch* https://www.google.com.pe/search*tbm=isch* https://www.google.com.pg/search*tbm=isch* https://www.google.com.ph/search*tbm=isch* https://www.google.com.pk/search*tbm=isch* https://www.google.pl/search*tbm=isch* https://www.google.pn/search*tbm=isch* https://www.google.com.pr/search*tbm=isch* https://www.google.ps/search*tbm=isch* https://www.google.pt/search*tbm=isch* https://www.google.com.py/search*tbm=isch* https://www.google.com.qa/search*tbm=isch* https://www.google.ro/search*tbm=isch* https://www.google.ru/search*tbm=isch* https://www.google.rw/search*tbm=isch* https://www.google.com.sa/search*tbm=isch* https://www.google.com.sb/search*tbm=isch* https://www.google.sc/search*tbm=isch* https://www.google.se/search*tbm=isch* https://www.google.com.sg/search*tbm=isch* https://www.google.sh/search*tbm=isch* https://www.google.si/search*tbm=isch* https://www.google.sk/search*tbm=isch* https://www.google.com.sl/search*tbm=isch* https://www.google.sn/search*tbm=isch* https://www.google.so/search*tbm=isch* https://www.google.sm/search*tbm=isch* https://www.google.sr/search*tbm=isch* https://www.google.st/search*tbm=isch* https://www.google.com.sv/search*tbm=isch* https://www.google.td/search*tbm=isch* https://www.google.tg/search*tbm=isch* https://www.google.co.th/search*tbm=isch* https://www.google.com.tj/search*tbm=isch* https://www.google.tl/search*tbm=isch* https://www.google.tm/search*tbm=isch* https://www.google.tn/search*tbm=isch* https://www.google.to/search*tbm=isch* https://www.google.com.tr/search*tbm=isch* https://www.google.tt/search*tbm=isch* https://www.google.com.tw/search*tbm=isch* https://www.google.co.tz/search*tbm=isch* https://www.google.com.ua/search*tbm=isch* https://www.google.co.ug/search*tbm=isch* https://www.google.co.uk/search*tbm=isch* https://www.google.com.uy/search*tbm=isch* https://www.google.co.uz/search*tbm=isch* https://www.google.com.vc/search*tbm=isch* https://www.google.co.ve/search*tbm=isch* https://www.google.vg/search*tbm=isch* https://www.google.co.vi/search*tbm=isch* https://www.google.com.vn/search*tbm=isch* https://www.google.vu/search*tbm=isch* https://www.google.ws/search*tbm=isch* https://www.google.rs/search*tbm=isch* https://www.google.co.za/search*tbm=isch* https://www.google.co.zm/search*tbm=isch* https://www.google.co.zw/search*tbm=isch* https://www.google.cat/search*tbm=isch* https://www.google.com/search*udm=2* https://www.google.ad/search*udm=2* https://www.google.ae/search*udm=2* https://www.google.com.af/search*udm=2* https://www.google.com.ag/search*udm=2* https://www.google.com.ai/search*udm=2* https://www.google.al/search*udm=2* https://www.google.am/search*udm=2* https://www.google.co.ao/search*udm=2* https://www.google.com.ar/search*udm=2* https://www.google.as/search*udm=2* https://www.google.at/search*udm=2* https://www.google.com.au/search*udm=2* https://www.google.az/search*udm=2* https://www.google.ba/search*udm=2* https://www.google.com.bd/search*udm=2* https://www.google.be/search*udm=2* https://www.google.bf/search*udm=2* https://www.google.bg/search*udm=2* https://www.google.com.bh/search*udm=2* https://www.google.bi/search*udm=2* https://www.google.bj/search*udm=2* https://www.google.com.bn/search*udm=2* https://www.google.com.bo/search*udm=2* https://www.google.com.br/search*udm=2* https://www.google.bs/search*udm=2* https://www.google.bt/search*udm=2* https://www.google.co.bw/search*udm=2* https://www.google.by/search*udm=2* https://www.google.com.bz/search*udm=2* https://www.google.ca/search*udm=2* https://www.google.cd/search*udm=2* https://www.google.cf/search*udm=2* https://www.google.cg/search*udm=2* https://www.google.ch/search*udm=2* https://www.google.ci/search*udm=2* https://www.google.co.ck/search*udm=2* https://www.google.cl/search*udm=2* https://www.google.cm/search*udm=2* https://www.google.cn/search*udm=2* https://www.google.com.co/search*udm=2* https://www.google.co.cr/search*udm=2* https://www.google.com.cu/search*udm=2* https://www.google.cv/search*udm=2* https://www.google.com.cy/search*udm=2* https://www.google.cz/search*udm=2* https://www.google.de/search*udm=2* https://www.google.dj/search*udm=2* https://www.google.dk/search*udm=2* https://www.google.dm/search*udm=2* https://www.google.com.do/search*udm=2* https://www.google.dz/search*udm=2* https://www.google.com.ec/search*udm=2* https://www.google.ee/search*udm=2* https://www.google.com.eg/search*udm=2* https://www.google.es/search*udm=2* https://www.google.com.et/search*udm=2* https://www.google.fi/search*udm=2* https://www.google.com.fj/search*udm=2* https://www.google.fm/search*udm=2* https://www.google.fr/search*udm=2* https://www.google.ga/search*udm=2* https://www.google.ge/search*udm=2* https://www.google.gg/search*udm=2* https://www.google.com.gh/search*udm=2* https://www.google.com.gi/search*udm=2* https://www.google.gl/search*udm=2* https://www.google.gm/search*udm=2* https://www.google.gr/search*udm=2* https://www.google.com.gt/search*udm=2* https://www.google.gy/search*udm=2* https://www.google.hk/search*udm=2* https://www.google.com.hk/search*udm=2* https://www.google.hn/search*udm=2* https://www.google.hr/search*udm=2* https://www.google.ht/search*udm=2* https://www.google.hu/search*udm=2* https://www.google.co.id/search*udm=2* https://www.google.ie/search*udm=2* https://www.google.co.il/search*udm=2* https://www.google.im/search*udm=2* https://www.google.co.in/search*udm=2* https://www.google.iq/search*udm=2* https://www.google.is/search*udm=2* https://www.google.it/search*udm=2* https://www.google.je/search*udm=2* https://www.google.com.jm/search*udm=2* https://www.google.jo/search*udm=2* https://www.google.jp/search*udm=2* https://www.google.co.jp/search*udm=2* https://www.google.co.ke/search*udm=2* https://www.google.com.kh/search*udm=2* https://www.google.ki/search*udm=2* https://www.google.kg/search*udm=2* https://www.google.co.kr/search*udm=2* https://www.google.com.kw/search*udm=2* https://www.google.kz/search*udm=2* https://www.google.la/search*udm=2* https://www.google.com.lb/search*udm=2* https://www.google.li/search*udm=2* https://www.google.lk/search*udm=2* https://www.google.co.ls/search*udm=2* https://www.google.lt/search*udm=2* https://www.google.lu/search*udm=2* https://www.google.lv/search*udm=2* https://www.google.com.ly/search*udm=2* https://www.google.co.ma/search*udm=2* https://www.google.md/search*udm=2* https://www.google.me/search*udm=2* https://www.google.mg/search*udm=2* https://www.google.mk/search*udm=2* https://www.google.ml/search*udm=2* https://www.google.com.mm/search*udm=2* https://www.google.mn/search*udm=2* https://www.google.ms/search*udm=2* https://www.google.com.mt/search*udm=2* https://www.google.mu/search*udm=2* https://www.google.mv/search*udm=2* https://www.google.mw/search*udm=2* https://www.google.com.mx/search*udm=2* https://www.google.com.my/search*udm=2* https://www.google.co.mz/search*udm=2* https://www.google.com.na/search*udm=2* https://www.google.com.ng/search*udm=2* https://www.google.com.ni/search*udm=2* https://www.google.ne/search*udm=2* https://www.google.nl/search*udm=2* https://www.google.no/search*udm=2* https://www.google.com.np/search*udm=2* https://www.google.nr/search*udm=2* https://www.google.nu/search*udm=2* https://www.google.co.nz/search*udm=2* https://www.google.com.om/search*udm=2* https://www.google.com.pa/search*udm=2* https://www.google.com.pe/search*udm=2* https://www.google.com.pg/search*udm=2* https://www.google.com.ph/search*udm=2* https://www.google.com.pk/search*udm=2* https://www.google.pl/search*udm=2* https://www.google.pn/search*udm=2* https://www.google.com.pr/search*udm=2* https://www.google.ps/search*udm=2* https://www.google.pt/search*udm=2* https://www.google.com.py/search*udm=2* https://www.google.com.qa/search*udm=2* https://www.google.ro/search*udm=2* https://www.google.ru/search*udm=2* https://www.google.rw/search*udm=2* https://www.google.com.sa/search*udm=2* https://www.google.com.sb/search*udm=2* https://www.google.sc/search*udm=2* https://www.google.se/search*udm=2* https://www.google.com.sg/search*udm=2* https://www.google.sh/search*udm=2* https://www.google.si/search*udm=2* https://www.google.sk/search*udm=2* https://www.google.com.sl/search*udm=2* https://www.google.sn/search*udm=2* https://www.google.so/search*udm=2* https://www.google.sm/search*udm=2* https://www.google.sr/search*udm=2* https://www.google.st/search*udm=2* https://www.google.com.sv/search*udm=2* https://www.google.td/search*udm=2* https://www.google.tg/search*udm=2* https://www.google.co.th/search*udm=2* https://www.google.com.tj/search*udm=2* https://www.google.tl/search*udm=2* https://www.google.tm/search*udm=2* https://www.google.tn/search*udm=2* https://www.google.to/search*udm=2* https://www.google.com.tr/search*udm=2* https://www.google.tt/search*udm=2* https://www.google.com.tw/search*udm=2* https://www.google.co.tz/search*udm=2* https://www.google.com.ua/search*udm=2* https://www.google.co.ug/search*udm=2* https://www.google.co.uk/search*udm=2* https://www.google.com.uy/search*udm=2* https://www.google.co.uz/search*udm=2* https://www.google.com.vc/search*udm=2* https://www.google.co.ve/search*udm=2* https://www.google.vg/search*udm=2* https://www.google.co.vi/search*udm=2* https://www.google.com.vn/search*udm=2* https://www.google.vu/search*udm=2* https://www.google.ws/search*udm=2* https://www.google.rs/search*udm=2* https://www.google.co.za/search*udm=2* https://www.google.co.zm/search*udm=2* https://www.google.co.zw/search*udm=2* https://www.google.cat/search*udm=2* https://www.google.com/imgres* https://www.google.ad/imgres* https://www.google.ae/imgres* https://www.google.com.af/imgres* https://www.google.com.ag/imgres* https://www.google.com.ai/imgres* https://www.google.al/imgres* https://www.google.am/imgres* https://www.google.co.ao/imgres* https://www.google.com.ar/imgres* https://www.google.as/imgres* https://www.google.at/imgres* https://www.google.com.au/imgres* https://www.google.az/imgres* https://www.google.ba/imgres* https://www.google.com.bd/imgres* https://www.google.be/imgres* 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https://www.google.com.py/imgres* https://www.google.com.qa/imgres* https://www.google.ro/imgres* https://www.google.ru/imgres* https://www.google.rw/imgres* https://www.google.com.sa/imgres* https://www.google.com.sb/imgres* https://www.google.sc/imgres* https://www.google.se/imgres* https://www.google.com.sg/imgres* https://www.google.sh/imgres* https://www.google.si/imgres* https://www.google.sk/imgres* https://www.google.com.sl/imgres* https://www.google.sn/imgres* https://www.google.so/imgres* https://www.google.sm/imgres* https://www.google.sr/imgres* https://www.google.st/imgres* https://www.google.com.sv/imgres* https://www.google.td/imgres* https://www.google.tg/imgres* https://www.google.co.th/imgres* https://www.google.com.tj/imgres* https://www.google.tl/imgres* https://www.google.tm/imgres* https://www.google.tn/imgres* https://www.google.to/imgres* https://www.google.com.tr/imgres* https://www.google.tt/imgres* https://www.google.com.tw/imgres* https://www.google.co.tz/imgres* https://www.google.com.ua/imgres* https://www.google.co.ug/imgres* https://www.google.co.uk/imgres* https://www.google.com.uy/imgres* https://www.google.co.uz/imgres* https://www.google.com.vc/imgres* https://www.google.co.ve/imgres* https://www.google.vg/imgres* https://www.google.co.vi/imgres* https://www.google.com.vn/imgres* https://www.google.vu/imgres* https://www.google.ws/imgres* https://www.google.rs/imgres* https://www.google.co.za/imgres* https://www.google.co.zm/imgres* https://www.google.co.zw/imgres* https://www.google.cat/imgres* """# let stringRange = NSRange(location: 0, length: testString.utf16.count) let matches = regex.matches(in: testString, range: stringRange) var result: [[String]] = [] for match in matches { var groups: [String] = [] for rangeIndex in 1 ..< match.numberOfRanges { let nsRange = match.range(at: rangeIndex) guard !NSEqualRanges(nsRange, NSMakeRange(NSNotFound, 0)) else { continue } let string = (testString as NSString).substring(with: nsRange) groups.append(string) } if !groups.isEmpty { result.append(groups) } } print(result)

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 Swift 5.2, please visit: https://developer.apple.com/documentation/foundation/nsregularexpression