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

/
/
gms

Test String

Substitution

Processing...

Code Generator

Language

Generated Code

// include the latest version of the regex crate in your Cargo.toml extern crate regex; use regex::Regex; fn main() { let regex = Regex::new(r"(?ms).*(playlist[^;]+;).*").unwrap(); let string = "<code lang=\"javascript\"> playlist: { id: 1 , seasons:[{\"season\":8,\"blocked\":false,\"episodes\":[{\"episode\":\"1\",\"id\":252323,\"hlsList\":{\"1080\":\"https://m1.rumer.club/manifest/MTc4LjE1OS4yMTUuOTY=/?video=https%3A%2F%2Fhls-t001-l001-c051-s001.vidstr.club%2F06_30_20%2F06%2F30%2F03%2FHASZJ7WG%2FPSZ4DDK2.mp4%2Ftracks%2Fv1-a%2Fmaster.m3u8\",\"480\":\"https://m1.rumer.club/manifest/MTc4LjE1OS4yMTUuOTY=/?video=https%3A%2F%2Fhls-t001-l001-c051-s001.vidstr.club%2F06_30_20%2F06%2F30%2F03%2FHASZJ7WG%2FPSZ4DDK2.mp4%2Ftracks%2Fv2-a%2Fmaster.m3u8\",\"720\":\"https://m1.rumer.club/manifest/MTc4LjE1OS4yMTUuOTY=/?video=https%3A%2F%2Fhls-t001-l001-c051-s001.vidstr.club%2F06_30_20%2F06%2F30%2F03%2FHASZJ7WG%2FPSZ4DDK2.mp4%2Ftracks%2Fv1-a%2Fmaster.m3u8\"},\"audio\":{\"names\":[\"Рус. Дублированный\",\"AlexFilm\",\"LostFilm\",\"JASKIER\",\"HDRezka Studio\",\"AMS\",\"Fox\",\"Novamedia\",\"FocusStudio\",\"НеЗупиняйПродакшн (укр)\",\"Eng.Original\"],\"order\":[3,1,0,5,6,7,2,8,9,4,10]},\"cc\":[{\"url\":\"https://hls-c1.vidstr.club/06_30_20/06/30/02/RTPE2OFQ/GGNIJSJX.vtt\",\"name\":\"Рус. форсированные\"}],\"duration\":3187,\"title\":\"Игра престолов (8 сезон) - 1 серия\"},{\"episode\":\"10\",\"id\":223739,\"dash\":\"https://m1.rumer.club/manifest/MTc4LjE1OS4yMTUuOTY=/?video=https%3A%2F%2Fhls-t001-l001-c058-s001.pixars.org%2F05_20%2F29%2F23%2FCQWEUCBD%2F570778.mpd\",\"hlsList\":{\"1080\":\"https://m1.rumer.club/manifest/MTc4LjE1OS4yMTUuOTY=/?video=https%3A%2F%2Fhls-t001-l001-c058-s001.vidstr.club%2F05_29_20%2F05%2F29%2F18%2FWAH732XV%2FIMG6I4IA.mp4%2Ftracks%2Fv1-a%2Fmaster.m3u8\",\"480\":\"https://m1.rumer.club/manifest/MTc4LjE1OS4yMTUuOTY=/?video=https%3A%2F%2Fhls-t001-l001-c058-s001.vidstr.club%2F05_29_20%2F05%2F29%2F18%2FWAH732XV%2FIMG6I4IA.mp4%2Ftracks%2Fv2-a%2Fmaster.m3u8\",\"720\":\"https://m1.rumer.club/manifest/MTc4LjE1OS4yMTUuOTY=/?video=https%3A%2F%2Fhls-t001-l001-c058-s001.vidstr.club%2F05_29_20%2F05%2F29%2F18%2FWAH732XV%2FIMG6I4IA.mp4%2Ftracks%2Fv1-a%2Fmaster.m3u8\"},\"audio\":{\"names\":[\"AlexFilm\",\"LostFilm\",\"Fox\",\"Рус. Дублированный\",\"Укр. Дубльований\",\"Eng.Original\",\"Eng. Orig. with Commentary\"],\"order\":[1,0,2,3,4,5,6]},\"cc\":[{\"url\":\"https://hls-c1.vidstr.club/05_29_20/05/29/18/F4RPKISV/HOXVWRJ5.vtt\",\"name\":\"Рус. форсированные\"}],\"duration\":3157,\"title\":\"Игра престолов (1 сезон) - 10 серия\"}]}] }, theme: \"2\" }); </code></spoiler>"; let substitution = "$1"; // result will be a String with the substituted value let result = regex.replace_all(string, substitution); println!("{}", result); }

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 Rust, please visit: https://docs.rs/regex/latest/regex/