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

/
/
sm

Test String

Code Generator

Language

Generated Code

import java.util.regex.Matcher; import java.util.regex.Pattern; public class Example { public static void main(String[] args) { final String regex = "<script>.*(adsConfig).*<\\/script>"; final String string = "<script>\n" + " var middleCount = 0;\n" + " var adsConfig = {\n\n\n\n\n\n" + " nonLinear: {\n" + " url: \"https://8245.digital/vpaid/?id=7875&type=nonlinear&dcc=1\",\n" + " total: 0 ,\n" + " offset: 10 * 60,\n" + " label: { name: 'label', val: 'overlay', counter: true }\n" + " },\n" + " \n" + " pre: {\n" + " maxImpressions: 2 ,\n" + " urls: [\"https://8245.digital/vpaid/?id=5241&label=preroll&dcc=1&maximp=2&synconly=1\"]\n\n" + " },\n" + " \n" + " middle: {\n" + " pop: true,\n" + " maxTotalImp: 0 ,\n" + " maxImpressions: 1,\n" + " urls: [\"https://8245.digital/vpaid/?id=21515&synconly=1&maximp=1&dcc=1&mid=6\",\"https://8245.digital/vpaid/?id=5242&synconly=1&maximp=1&dcc=1&mid=6\"]\n" + ",\n" + " getUrls: function () {\n" + " var u = middleCount && adsConfig.middle.urls\n" + " ? adsConfig.middle.urls.slice(1)\n" + " : adsConfig.middle.urls;\n" + " middleCount++;\n" + " return u;\n" + " },\n" + " \n" + " label: { name: 'label', val: 'middleroll', counter: true }\n" + " },\n" + " \n" + " confirmTimeout: 60 * 1000,\n" + " confirmOn: ['localhost', 'zombie-film.net'],\n" + " vast: {timeouts: {loading: 20000, starting: 20000, global: 120000}},\n" + " volume: 0.3,\n" + " tv: true,\n" + " suppressOnFakeFullScreen: true\n" + " };\n" + " </script>"; final Pattern pattern = Pattern.compile(regex, Pattern.DOTALL | Pattern.MULTILINE); final Matcher matcher = pattern.matcher(string); if (matcher.find()) { System.out.println("Full match: " + matcher.group(0)); for (int i = 1; i <= matcher.groupCount(); i++) { System.out.println("Group " + i + ": " + matcher.group(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 Java, please visit: https://docs.oracle.com/javase/7/docs/api/java/util/regex/Pattern.html