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"
"
gmix

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 = "<p\\s*\n" + "(?:[^>=]|='[^']*'|=\"[^\"]*\"|=[^'\"][^\\s>]*)*?\\sclass=(['\"]?)(?:body|bodydc)\\1(?:\\s|>)\n\n" + "(?:([^<]*)|<(?!\\/p)(?:[^>=]|='[^']*'|=\"[^\"]*\"|=[^'\"][^\\s>]*)*>)*\n" + "(?=<\\/p>)\n"; final String string = "<p class=bodyDC style='text-indent:12.0pt'><span style='font-size:14.0pt;\n" + "mso-bidi-font-size:10.0pt' onmouseover=\" </p> \">We have no need to fear the future.&quot; So said\n" + "bishop-elect H. George Anderson at a news conference immediately following his election as \n" + "bishop of the Evangelical Lutheran Church in America. &quot;[The\n" + "future] belongs­ to God, untouched by human hands.&quot; At the beginning of a\n" + "new ministry of leadership and pastoral oversight, such words from a bishop are\n" + "obviously designed to project confidence and a profound sense of trust in the\n" + "mission of the Church. They are words designed to inspire and empower the\n" + "people of God for ministry.<o:p></o:p></span></p>\n" + "Paragraph #2\n\n" + "<p class=BODY><span style='font-size:14.0pt;mso-bidi-font-size:10.0pt'>Ages\n" + "ago, another prophet of the people stood at his station and peered into the\n" + "future. The<span style=\"mso-spacerun: yes\"> </span>prophet Habakkuk poised on\n" + "the rampart, scanned the horizon for the approaching enemy he knew was coming.\n" + "As he waited, Habakkuk prayed to God asking why God was unresponsive to all\n" + "this violence and destruction. In Habakkuk chapter 2 the prophet records God's\n" + "answer to his questions about the future. God says to the fearful one, &quot;For\n" + "there is still a vision for the appointed time;… If it seems to tarry, wait for\n" + "it; it will surely come, it will not delay…the righteous live by faith&quot;\n" + "(2:3-4).<o:p></o:p></span></p>"; final Pattern pattern = Pattern.compile(regex, Pattern.MULTILINE | Pattern.CASE_INSENSITIVE | Pattern.COMMENTS); final Matcher matcher = pattern.matcher(string); while (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