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"
"
gm

Test String

Code Generator

Language

Generated Code

use strict; my $str = 'Hub = {}; Hub.config = { config: {}, get: function(key) { if (key in this.config) { return this.config[key]; } else { return null; } }, set: function(key, val) { this.config[key] = val; } }; Hub.config.set(\'sku\', { valCartInfo : { itemId : \'576938415361\', cartUrl: \'//cart.mangolane.com/cart.htm\' }, apiRelateMarket : \'//tui.mangolane.com/recommend?appid=16&count=4&itemid=576938415361\', apiAddCart : \'//cart.mangolane.com/add_cart_item.htm?item_id=576938415361\', apiInsurance : \'\', wholeSibUrl : \'//detailskip.mangolane.com/service/getData/1/p1/item/detail/sib.htm?itemId=576938415361&sellerId=499095250&modules=dynStock,qrcode,viewer,price,duty,xmpPromotion,delivery,upp,activity,fqg,zjys,amountRestriction,couponActivity,soldQuantity,page,originalPrice,tradeContract\', areaLimit : \'\', bigGroupUrl : \'\', valPostFee : \'\', coupon : { couponApi : \'//detailskip.mangolane.com/json/activity.htm?itemId=576938415361&sellerId=499095250\', couponWidgetDomain: \'//assets.mgcdn.com\', cbUrl : \'/cross.htm?type=weibo\' }, valItemInfo : { defSelected: -1, skuMap : {";20549:103189693;1627207:811754571;":{"price":"528.00","stock":"2","skuId":"4301611864655","oversold":false}, ";20549:59280855;1627207:412796441;":{"price":"528.00","stock":"2","skuId":"4432149803707","oversold":false}, ";20549:59280855;1627207:196576508;":{"price":"528.00","stock":"2","skuId":"4018119863100","oversold":false}, ";20549:72380707;1627207:28341;":{"price":"528.00","stock":"2","skuId":"4166690818570","oversold":false}, ";20549:418624880;1627207:28341;":{"price":"528.00","stock":"2","skuId":"4166690818566","oversold":false}, ";20549:418624880;1627207:196576508;":{"price":"528.00","stock":"2","skuId":"4018119863098","oversold":false}, ";20549:72380707;1627207:3224419;":{"price":"528.00","stock":"2","skuId":"4166690818571","oversold":false}, ";20549:147478970;1627207:196576508;":{"price":"528.00","stock":"2","skuId":"4018119863094","oversold":false}, ";20549:72380707;1627207:384366805;":{"price":"528.00","stock":"2","skuId":"4432149803708","oversold":false}, ";20549:296172561;1627207:811754571;":{"price":"528.00","stock":"2","skuId":"4301611864659","oversold":false}, ";20549:72380707;1627207:1150336209;":{"price":"528.00","stock":"2","skuId":"4301611864664","oversold":false}, ";20549:147478970;1627207:93586002;":{"price":"528.00","stock":"2","skuId":"4018119863095","oversold":false}} ,propertyMemoMap: {"1627207:811754571":"黑色单里（预售） 年后2.29发货","1627207:93586002":"黑色加绒 现货","1627207:412796441":"黑色（兔毛） 现货","1627207:384366805":"米白色（兔毛） 现货","1627207:3224419":"驼色 现货","1627207:1150336209":"驼色单里（预售） 年后2.29发货","1627207:28341":"黑色 现货","1627207:196576508":"驼色加绒 现货"} } });'; my $regex = qr/Hub\.config\.set\('\w*',\s*({[\s\S]*})/mp; if ( $str =~ /$regex/g ) { print "Whole match is ${^MATCH} and its start/end positions can be obtained via \$-[0] and \$+[0]\n"; # print "Capture Group 1 is $1 and its start/end positions can be obtained via \$-[1] and \$+[1]\n"; # print "Capture Group 2 is $2 ... and so on\n"; } # ${^POSTMATCH} and ${^PREMATCH} are also available with the use of '/p' # Named capture groups can be called via $+{name}

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 Perl, please visit: http://perldoc.perl.org/perlre.html