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

/
/
gmis

Test String

Code Generator

Language

Generated Code

use strict; my $str = ' <script src="/js/theme.min-1.1.js"></script><script> const labels = [ \'00:00\',\'01:00\',\'02:00\',\'03:00\',\'04:00\',\'05:00\',\'06:00\',\'07:00\',\'08:00\',\'09:00\',\'10:00\',\'11:00\',\'12:00\',\'13:00\',\'14:00\',\'15:00\',\'16:00\',\'17:00\',\'18:00\',\'19:00\',\'20:00\',\'21:00\',\'22:00\',\'23:00\',\'24:00\',]; const data = { labels: labels, datasets: [{ stepped:true, label: \'Idag\', backgroundColor: \'#357DA7\', borderColor: \'#357DA7\', data: [94.24,91.59,93.52,97.70,103.23,155.15,233.20,269.03,279.92,255.87,231.30,226.70,209.64,174.65,164.84,154.16,134.04,199.48,205.03,204.88,192.49,154.16,74.40,19.47,19.47] }, { label: \'Idag snitt\', backgroundColor: \'#fff\', borderColor: \'#357DA7\', borderDash: [5, 5], data: [167.44,167.44,167.44,167.44,167.44,167.44,167.44,167.44,167.44,167.44,167.44,167.44,167.44,167.44,167.44,167.44,167.44,167.44,167.44,167.44,167.44,167.44,167.44,167.44,167.44,], pointRadius: 0, borderWidth: 2 } ,{ stepped:true, label: \'Imorgon\', backgroundColor: \'#dd4b39\', borderColor: \'#dd4b39\', data: [10.28,9.82,6.15,5.10,11.91,13.78,80.03,205.79,215.04,214.14,211.85,205.64,204.86,165.63,166.62,196.70,200.63,207.10,211.79,211.80,208.24,207.02,113.90,47.63,47.63] },{ label: \'Imorgon snitt\', backgroundColor: \'#fff\', borderColor: \'#dd4b39\', borderDash: [5, 5], data: [138.81,138.81,138.81,138.81,138.81,138.81,138.81,138.81,138.81,138.81,138.81,138.81,138.81,138.81,138.81,138.81,138.81,138.81,138.81,138.81,138.81,138.81,138.81,138.81,138.81,], pointRadius: 0, borderWidth: 2 } ] }; const config = {type: \'line\',data: data,options: {}}; var myChart = new Chart(document.getElementById(\'myChart\'),config); </script>'; my $regex = qr/^const labels(.*)const config = {type: 'line',data: data,options: {}};/misp; 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