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

re = /^(我说(了)?|(我)?跟你说|(我)?说的是)?请?你?(.{0,2}我)?(把)?(音乐|歌曲|音响|音箱|播放)?(暂停|停)(下|一下|一会|一会儿)?(音乐|播放|音响|音箱|歌曲|音乐播放器)?(了)?(听到(了)?(吗|没|没有)|(你)?还放)?.{0,1}$/m str = '我不听了 你别放了 我不想听了 别放了 我要听音乐 我不要听 我不听 别放了啊 跟你说别放了 你别放了听到没 你别放了还放 别放了你 你结束 你别放了啊 快把音乐关上 关闭音响 关闭音乐 关掉音乐 关掉播放器 你关掉音乐 你给我关掉音乐 暂停音乐 把音乐停下来 你把音乐停下来 暂停播放 暂停音乐播放器 给我停下 停下来 音乐停下来 暂停 你给我停下 快给我停下 停 暂停一下呗 停下 唱的真难听 好难听 真难听啊 不好听 不喜欢 真的不喜欢 不喜欢这首歌 不喜欢这个 你唱的太难听了 好难听 不想听音乐 别放音乐 不听音乐 想听周杰伦的歌 ' # Print the match result str.scan(re) do |match| puts match.to_s end

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 Ruby, please visit: http://ruby-doc.org/core-2.2.0/Regexp.html