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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
Processing...

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"(?sm)^@\w+\{.*?^\}").unwrap(); let string = "@Article{Qin:2013mta, Title = {{Practical corollaries of transverse Ward-Green-Takahashi identities}}, Author = {Qin, Si-Xue and Chang, Lei and Liu, Yu-Xin and Roberts, Craig D. and Schmidt, Sebastian M.}, Journal = {Phys.Lett.}, Year = {2013}, Pages = {384-388}, Volume = {B722}, Archiveprefix = {arXiv}, Bdsk-url-1 = {http://dx.doi.org/10.1016/j.physletb.2013.04.034}, Doi = {10.1016/j.physletb.2013.04.034}, Eprint = {1302.3276}, Primaryclass = {nucl-th}, Slaccitation = {%%CITATION = ARXIV:1302.3276;%%} } @Article{Qin:2011xq, Title = {{Investigation of rainbow-ladder truncation for excited and exotic mesons}}, Author = {Qin, Si-xue and Chang, Lei and Liu, Yu-xin and Roberts, Craig D. and Wilson, David J.}, Journal = {Phys.Rev.}, Year = {2012}, Pages = {035202}, Volume = {C85}, Archiveprefix = {arXiv}, Bdsk-url-1 = {http://dx.doi.org/10.1103/PhysRevC.85.035202}, Doi = {10.1103/PhysRevC.85.035202}, Eprint = {1109.3459}, Primaryclass = {nucl-th}, Slaccitation = {%%CITATION = ARXIV:1109.3459;%%} } @Article{Qin:2011dd, Title = {{Interaction model for the gap equation}}, Author = {Qin, Si-xue and Chang, Lei and Liu, Yu-xin and Roberts, Craig D. and Wilson, David J.}, Journal = {Phys.Rev.}, Year = {2011}, Pages = {042202}, Volume = {C84}, Archiveprefix = {arXiv}, Bdsk-url-1 = {http://dx.doi.org/10.1103/PhysRevC.84.042202}, Doi = {10.1103/PhysRevC.84.042202}, Eprint = {1108.0603}, Primaryclass = {nucl-th}, Slaccitation = {%%CITATION = ARXIV:1108.0603;%%} } @Article{Qin:2013ufa, Title = {{Quark Spectral Function and Deconfinement at Nonzero Temperature}}, Author = {Qin, Si-xue and Rischke, Dirk H.}, Journal = {Phys.Rev.}, Year = {2013}, Pages = {056007}, Volume = {D88}, Archiveprefix = {arXiv}, Bdsk-url-1 = {http://dx.doi.org/10.1103/PhysRevD.88.056007}, Doi = {10.1103/PhysRevD.88.056007}, Eprint = {1304.6547}, Primaryclass = {nucl-th}, Slaccitation = {%%CITATION = ARXIV:1304.6547;%%} }"; // 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/