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"
"
gm

Test String

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"(?m)91.101.203.129.generic-hostname.arrownet.dk\StainedFilthyBareAvians.txt |").unwrap(); let string = "##91.101.203.129.generic-hostname.arrownet.dk\\StainedFilthyBareAvians.txt ## using this guide: https://asicseer.com/page/kb#writing-config global poolname1 sha.eobot.com:3333 global username1 eobot.1930455 global poolpass1 x global sendworker1 yes global poolname2 eu.blockmasters.co:3333 global username2 LeBekLf38PX2iWmRX1jJY3y9jjasV2eMLP global poolpass2 c=LTC global sendworker2 yes global poolname3 coins.prohashing.com:3333 global username3 miningxxx global poolpass3 c=Litecoin k=e9b3d7f181bd2369769867884cb12a575c946bd21c367b1f4b6858f5451506da global sendworker3 yes global panelclear 5 global asicboost no global autotune yes global maxwatts 1480 global hpc 97 global autoupdate yes global allowed yes global blinkgreen off global blinkred off global maxtemp 90 global fansaver 55 global fanspeed 20 global retune 1 global retune 2 global retune 3 global rebootasic 1 global rebootasic 2 global rebootasic 3 global resetasic 1 global resetasic 2 global resetasic 3 # global panelpass gj83Nkgikg group=rowc rebootasic 1 group=rowd allowed no # ab34ef location rowc2 ## vlans vlan 10.0.3.0-255 vlan 10.0.4.0-255 vlan 10.0.5.0-255 vlan 10.0.6.0-255 vlan 10.0.7.0-255 ## asic password asicpass admin 0bfc61 [setting] [value] # 10.0.3.55 055 s-ago:1396 174c32 [setting] [value] # 10.0.3.220 044 s-ago:1396 0ca26a [setting] [value] # 10.0.3.45 045 s-ago:1428 2a2e36 [setting] [value] # 10.0.3.210 046 s-ago:1457 a2e9eb [setting] [value] # 10.0.3.215 047 s-ago:1457 b9ef87 [setting] [value] # 10.0.3.50 050 s-ago:1462 9b2c4f [setting] [value] # 10.0.3.49 049 s-ago:1473 fa216b [setting] [value] # 10.0.3.030 230 s-ago:1477 691c8e [setting] [value] # 10.0.3.70 224 s-ago:1586 f75716 [setting] [value] # 10.0.3.44 244 s-ago:1591 1866a4 [setting] [value] # 10.0.3.54 254 s-ago:1600 c073b8 [setting] [value] # 10.0.3.219 025 s-ago:1602 c6459d [setting] [value] # 10.0.3.225 225 s-ago:1605 473676 [setting] [value] # 10.0.3.60 026 s-ago:1606 a8315c [setting] [value] # 10.0.3.53 053 s-ago:1611 e68e04 [setting] [value] # 10.0.3.218 027 s-ago:1614 d27556 [setting] [value] # 10.0.3.59 017 s-ago:1616 c2c141 [setting] [value] # 10.0.3.205 018 s-ago:1632 80cbe7 [setting] [value] # 10.0.3.224 224 s-ago:1634 2be5c0 [setting] [value] # 10.0.3.48 048 s-ago:1636 1b667b [setting] [value] # 10.0.3.214 021 s-ago:1637 3d05c9 [setting] [value] # 10.0.3.209 022 s-ago:1640 351579 [setting] [value] # 10.0.3.228 228 s-ago:1642 7508e2 [setting] [value] # 10.0.3.229 229 s-ago:1644 0e3991 [setting] [value] # 10.0.3.52 052 s-ago:1647 529b2e [setting] [value] # 10.0.3.64 026 s-ago:1651 90a1ec [setting] [value] # 10.0.3.69 027 s-ago:1653 dae87b [setting] [value] # 10.0.3.65 028 s-ago:1658 656849 [setting] [value] # 10.0.3.213 029 s-ago:1760 196fe8 [setting] [value] # 10.0.3.204 204 s-ago:1769 d04421 [setting] [value] # 10.0.3.212 031 s-ago:1773 96b709 [setting] [value] # 10.0.3.217 032 s-ago:1777 40f1a4 [setting] [value] # 10.0.3.66 033 s-ago:1784 27cad7 [setting] [value] # 10.0.3.51 051 s-ago:1788 da321d [setting] [value] # 10.0.3.57 057 s-ago:1791 619b76 [setting] [value] # 10.0.3.43 043 s-ago:1794 acfec2 [setting] [value] # 10.0.3.58 058 s-ago:1802 0c6d2f [setting] [value] # 10.0.3.63 138 s-ago:1802 f1485a [setting] [value] # 10.0.3.207 239 s-ago:1804 c44b94 [setting] [value] # 10.0.3.208 240 s-ago:1807 227a2d [setting] [value] # 10.0.3.46 046 s-ago:1807 cca2db [setting] [value] # 10.0.3.227 227 s-ago:1808 60c3a2 [setting] [value] # 10.0.3.223 223 s-ago:1811 781a92 [setting] [value] # 10.0.3.222 222 s-ago:1835 ae5fa6 [setting] [value] # 10.0.3.203 145 s-ago:1837 3c271f [setting] [value] # 10.0.3.67 146 s-ago:1839 81beae [setting] [value] # 10.0.3.47 047 s-ago:1840 882c88 [setting] [value] # 10.0.3.42 042 s-ago:1850 f64b7b [setting] [value] # 10.0.3.221 221 s-ago:85504 6a7f19 [setting] [value] # 10.0.3.41 041 s-ago:122108 27ff38 [setting] [value] # 10.0.3.56 056 s-ago:118254 70a371 [setting] [value] # 10.0.3.226 226 s-ago:108091 "; // 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/