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

r"
"
gs

Test String

Code Generator

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"(?s)<tr>(?:.(?!<tr>))*?<td>.*?</td>(?:.(?!<tr>))*?<td>(.*?)</td>").unwrap(); let string = "<!DOCTYPE html> <html> <head> <meta charset=\"utf-8\"> <style> table, th, td { border: 1px solid black; border-collapse: collapse; } table{ width: 75%; margin-left: auto; margin-right: auto; text-align: center; } td{ padding: 5px; } #actualTime{ background-color: green } </style> </head> <header> </header> <body> <table> <tr id=\"actualTime\"> <th>actualTime</th> <th>cancelled</th> <th>commercialTrack</th> <th>countryCode</th> <th>scheduledTime</th> <th>stationShortCode</th> <th>stationUICCode</th> <th>trainStopping</th> <th>type</th> <th>trainNumber</th> </tr> <tr class=\"type\"> <td> 2019-08-06T04:48:00.000Z </td> <td> False </td> <td> </td> <td> FI </td> <td> 2019-08-06T04:48:00.000Z </td> <td> JVS </td> <td> 1272 </td> <td> False </td> <td> DEPARTURE </td> <td> 150 </td> </tr> <tr class=\"countryCode\"> <td> 2019-08-06T06:04:39.000Z </td> <td> False </td> <td> </td> <td> FI </td> <td> 2019-08-06T06:04:39.000Z </td> <td> R702 </td> <td> 98998 </td> <td> False </td> <td> ARRIVAL </td> <td> 150 </td> </tr> <tr> <td> 2019-08-06T07:03:12.000Z </td> <td> False </td> <td> </td> <td> FI </td> <td> 2019-08-06T07:03:12.000Z </td> <td> ILA </td> <td> 98998 </td> <td> 9 </td> <td> ARRIVAL </td> <td> 8337 </td> </tr> </table> </body> <footer> </footer> </html>"; // result will be an iterator over tuples containing the start and end indices for each match in the string let result = regex.captures_iter(string); for mat in result { println!("{:?}", mat); } }

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/