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

`
`
gm

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 = "(?s:(<a href=\"onebook\\.php\\?novelid=([\\d]+?)\".*?>(.*?)<\\/a>.*?center\">(.+?)<.*?center\">(.+?)<.*?<td align=\"right\">([\\d]+?)<.*?<td align=\"right\">([\\d]+?)<\\/td>))"; final String string = "<table width=\"986\" border=\"0\" align=\"center\" cellpadding=\"0\" cellspacing=\"0\"\n" + " class=\"cytable\">\n" + " <tbody>\n" + " <tr>\n" + " <td width=\"126\" class=\"sptd\">作者</td>\n" + " <td width=\"278\" class=\"sptd\">作品</td>\n" + " <td width=\"168\" class=\"sptd\">类型</td>\n" + " <td width=\"71\" class=\"sptd\">风格</td>\n" + " <td width=\"63\" class=\"sptd\">进度</td>\n" + " <td width=\"63\" class=\"sptd\">字数</td>\n" + " <td width=\"73\" class=\"sptd\">作品积分</td>\n" + " <td width=\"138\" class=\"sptd\">发表时间</td>\n" + " </tr>\n" + " \n" + " <tr>\n" + " <td align=\"left\">\n" + " <a href=\"oneauthor.php?authorid=385748\" target=\"_blank\">君sola</a>\n" + " </td>\n" + " <td align=\"left\">\n" + " <a href=\"onebook.php?novelid=1473506\" target=\"_blank\" title=\"简介：腹黑冰山美御姐与温柔黑化姑娘&#10;标签：\">探虚陵现代篇</a>\n" + " </td>\n" + " <td align=\"center\">\n" + " 原创-百合-近代现代-爱情 </td>\n" + " <td align=\"center\">\n" + " 正剧 </td>\n" + " <td align=\"center\">\n" + " 连载中 </td>\n" + " <td align=\"right\">2996549</td>\n" + " <td align=\"right\">9653954560</td>\n" + " <td align=\"center\">2012-03-21 11:25:31</td>\n" + " </tr>\n" + " <tr>\n" + " <td align=\"left\">\n" + " <a href=\"oneauthor.php?authorid=1696863\" target=\"_blank\">酒暖春深</a>\n" + " </td>\n" + " <td align=\"left\">\n" + " <a href=\"onebook.php?novelid=4170491\" target=\"_blank\" title=\"简介：为生者权，替死者言&#10;标签：\">我亲爱的法医小姐</a>\n" + " </td>\n" + " <td align=\"center\">\n" + " 原创-百合-近代现代-悬疑 </td>\n" + " <td align=\"center\">\n" + " 正剧 </td>\n" + " <td align=\"center\">\n" + " <font color='red'>已完成</font> </td>\n" + " <td align=\"right\">878082</td>\n" + " <td align=\"right\">3881133568</td>\n" + " <td align=\"center\">2019-08-29 20:00:00</td>\n" + " </tr>\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