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

/
/
g

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 = "\\> .+\\s+(?<text>[\\w\\W]+?)(?=\\s+\\d+\\s+|$)"; final String string = "1\n" + "00:00:00,000 --> 00:00:00,500\n" + "moi j'ai\n" + "fait des \n\n" + "2\n" + "00:00:00,500 --> 00:00:01,780\n" + "rêves lucides\n\n" + "3\n" + "00:00:01,780 --> 00:00:03,340\n" + "mais j’ai\n" + "jamais essayé\n\n" + "4\n" + "00:00:03,340 --> 00:00:03,820\n" + "d'en faire\n\n" + "5\n" + "00:00:03,820 --> 00:00:04,700\n" + "ou quoi\n\n" + "6\n" + "00:00:04,700 --> 00:00:05,500\n" + "J'ai dû\n" + "en faire\n\n" + "7\n" + "00:00:05,500 --> 00:00:06,720\n" + "genre cinq\n\n" + "8\n" + "00:00:06,720 --> 00:00:07,380\n" + "mais il y en\n\n" + "9\n" + "00:00:07,380 --> 00:00:09,160\n" + "a deux des cinq\n" + "où vraiment\n\n" + "10\n" + "00:00:09,160 --> 00:00:10,260\n" + "je faisais\n" + "ce que je veux\n\n" + "11\n" + "00:00:10,260 --> 00:00:11,080\n" + "Genre j'ai volé\n\n" + "12\n" + "00:00:11,080 --> 00:00:12,100\n" + "tout ce à quoi\n" + "je pensais\n\n" + "13\n" + "00:00:12,100 --> 00:00:12,720\n" + "je le faisais\n\n" + "14\n" + "00:00:12,720 --> 00:00:13,260\n" + "c'était\n" + "vraiment\n\n" + "15\n" + "00:00:13,260 --> 00:00:14,040\n" + "tranquille\n" + "bon c'était\n\n" + "16\n" + "00:00:14,040 --> 00:00:14,640\n" + "pendant\n" + "ma période\n\n" + "17\n" + "00:00:14,640 --> 00:00:16,140\n" + "où j'étais\n" + "un peu\n\n" + "18\n" + "00:00:16,140 --> 00:00:16,800\n" + "dans un autre\n" + "monde\n\n" + "19\n" + "00:00:16,800 --> 00:00:17,360\n" + "de manière\n" + "générale\n\n" + "20\n" + "00:00:17,360 --> 00:00:17,720\n" + "Et j'ai fait\n\n" + "21\n" + "00:00:17,720 --> 00:00:18,820\n" + "l'inverse aussi\n\n" + "22\n" + "00:00:18,820 --> 00:00:20,460\n" + "où j'étais\n" + "réveillé Ça\n\n" + "23\n" + "00:00:20,460 --> 00:00:20,800\n" + "j'ai jamais\n\n" + "24\n" + "00:00:20,800 --> 00:00:21,280\n" + "fait Par contre\n\n" + "25\n" + "00:00:21,280 --> 00:00:21,900\n" + "et heureusement\n\n" + "26\n" + "00:00:21,900 --> 00:00:22,580\n" + "parce que\n" + "ça a l'air\n\n" + "27\n" + "00:00:22,580 --> 00:00:23,680\n" + "tellement\n" + "flippant\n\n" + "28\n" + "00:00:23,680 --> 00:00:24,740\n" + "J'adorais\n" + "vivre ça\n\n" + "29\n" + "00:00:24,740 --> 00:00:26,100\n" + "ah t’es unn\n" + "malade\n\n" + "30\n" + "00:00:26,100 --> 00:00:26,740\n" + "Mais attendez\n\n" + "31\n" + "00:00:26,740 --> 00:00:27,960\n" + "une expérience\n" + "négative\n\n" + "32\n" + "00:00:27,960 --> 00:00:28,920\n" + "est une bonne\n" + "expérience\n\n" + "33\n" + "00:00:28,920 --> 00:00:30,620\n" + "Moi j'ai\n" + "une amoureuse\n\n" + "34\n" + "00:00:30,620 --> 00:00:31,520\n" + "qui vit ça\n\n" + "35\n" + "00:00:31,520 --> 00:00:32,140\n" + "très souvent\n\n" + "36\n" + "00:00:32,140 --> 00:00:32,460\n" + "j’ai pas envie\n\n" + "37\n" + "00:00:32,460 --> 00:00:32,880\n" + "d'en faire 20\n\n" + "38\n" + "00:00:32,880 --> 00:00:33,740\n" + "mais et je peux\n" + "te dire\n\n" + "39\n" + "00:00:33,740 --> 00:00:35,020\n" + "qu'elle n'en\n" + "peut plus quoi"; final Pattern pattern = Pattern.compile(regex); 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