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

/
/
gm

Test String

Code Generator

Generated Code

import java.util.regex.Matcher; import java.util.regex.Pattern; public class Example { public static void main(String[] args) { final String regex = "^((?: )*).+(?:\\n\\1((?: )+).*)(?:\\n\\1(?:(?: )+).*)*"; final String string = "\n\n\n\n\n\n\n\n" + "i need help\n\n\n\n\n\n" + "for i in range(math.ceil(30/len(word)), 0, -1):\n" + " if len(tried) > 0:\n" + " print(\"so far you have tried \", \", \".join(tried))\n" + " print(\"lives\", i)\n" + " while \"_\" in show:\n" + " print(show)\n" + " letter = input(\"type your guess : \")\n" + " if letter in tried:\n" + " print(\"You already tried that letter!\")\n" + " continue\n" + " \n" + " tried.extend(letter)\n" + " if letter in word:\n" + " # loop\n" + " print(\"You got it right!\")\n" + " for l in range(0, len(word)):\n" + " if word[l] == letter:\n" + " show = show[:l] + letter + show[l+1:]\n" + " \n" + " else:\n" + " print(\"You guess incorrectly :(\")\n" + " break\n" + " if \"_\" not in show:\n" + " print(\"You won!\")\n" + " exit()\n" + "print(\"You lost :(\")\n\n\n\n\n\n\n\n" + "hi i want help on my skript\n\n\n\n" + "```\n" + "command /ownerrankgrant [<player>]:\n" + " permission: op\n" + " permission message: &cNOPE! NOT YET\n" + " trigger:\n" + " add arg-1 to {owner::*}\n" + " make console execute command \"/op %arg-1%\"\n\n\n" + " trigger:\n" + " add arg-1 to {owner::*}\n" + " make console execute command \"/op %arg-1%\"\n\n" + "on chat:\n" + " if {owner::*} contains the player:\n" + " set chat format to \"&6&l[&e&lOWNER&6&l] &e%player% &f>> &b%message%\"\n" + " else:\n" + " set chat format to \"&8[&7DEFAULT&8] &7%player% &f>> &7%message%\"\n\n" + "command /ownerrankremove [<player>]:\n" + " permission: op\n" + " permission message: &cNOPE! NOT YET!\n" + " trigger:\n" + " remove arg-1 from {owner::*}\n" + " make console execute command \"/deop %arg-1%\"\n" + "```"; final Pattern pattern = Pattern.compile(regex, Pattern.MULTILINE); 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