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

@
@
gs

Test String

Code Generator

Language

Generated Code

use strict; my $str = ' <div class="row"> <div class="col-xs-12 col-sm-10 col-sm-offset-1 col-md-8 col-md-offset-2"> <div> <h2 class="heading-large"> <strong> 61312.3 <small style="color:white;">UAH</small> </strong> <small><span class="glyphicon glyphicon-arrow-down text-danger"></span></small> </h2> <br> <!--<a href="#" class="showRateDetail" style="color:#BFECFF;">Подробности конвертации <span class="caret_blue"></span></a>--> <div> <div class="col-xs-12" style="margin-left:0px;padding-left:0px;padding-top:10px;"> <table class="table table-condensed" style="opacity:0.7;"> <thead> <tr align="left"> <th>Биржа</th> <th>Курс</th> <th>Суточный объем</th> </tr> </thead> <tbody> <tr align="left"> <td><a href="/exchange/exmo/" style="color:inherit;">Exmo</a></td> <td>61649.99999999</td> <td> <div class="progress" style="opacity:0.6;"> <div class="progress-bar progress-bar-info" role="progressbar" aria-valuenow="53.68" aria-valuemin="0" aria-valuemax="100" style="width: 53.68%;"> <span style="color:#004F70;padding-left:5px;">17</span> </div> </div> </td> </tr><tr align="left"> <td><a href="/exchange/kuna/" style="color:inherit;">Kuna</a></td> <td>60921.00000000</td> <td> <div class="progress" style="opacity:0.6;"> <div class="progress-bar progress-bar-info" role="progressbar" aria-valuenow="46.32" aria-valuemin="0" aria-valuemax="100" style="width: 46.32%;"> <span style="color:#004F70;padding-left:5px;">15</span> </div> </div> </td> </tr> <tr align="left"> <td colspan="2"> <b>Общий объем</b> </td> <td> <b>33 BTC</b> </td> </tr> <tbody> </table> </div> </div> </div> </div> </div> '; my $regex = qr@<strong>\s*([\d.]+)\s*<small style="color:white;">@sp; 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