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

// 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)<NewMarket sysname="SOCCER(.*?)ODD_EVEN"#).unwrap(); let string = "<NewMarket sysname=\"SOCCER_CORNERS_FIRST_HALF_DOUBLE_CHANCE\" name=\"1st Half Corners Double Chance\" voidRule=\"false\" settleRule=\"[Period] &gt;= [HT]\"> <Mappings> <OldMarket sysname=\"SOCCER_CORNERS_HALFTIME_DOUBLE_CHANCE\" /> </Mappings> <MarketDefinition captionEn=\"1st Half Corners Double Chance\" captionEl=\"Διπλή Ευκαιρία Κόρνερ Ημιχρόνου\"> <Odds> <Bet code=\"1X\" name=\"HomeDraw\" captionEn=\"{HomeTeam} / Draw\" settleRule=\"[HomeCorners1H] &gt;= [AwayCorners1H]\" /> <Bet code=\"X2\" name=\"DrawAway\" captionEn=\"{AwayTeam} / Draw\" settleRule=\"[HomeCorners1H] &lt;= [AwayCorners1H]\" /> <Bet code=\"12\" name=\"HomeAway\" captionEn=\"{HomeTeam} / {AwayTeam}\" settleRule=\"[HomeCorners1H] &gt; [AwayCorners1H] || [HomeCorners1H] &lt; [AwayCorners1H]\" /> </Odds> </MarketDefinition> </NewMarket> <NewMarket sysname=\"SOCCER_CORNERS_ODD_EVEN\" name=\"Corners Odd/Even\" voidRule=\"false\" settleRule=\"[Period] &gt;= [FT]\"> <Mappings> <OldMarket sysname=\"SOCCER_CORNERS_ODD_EVEN\" /> </Mappings> <MarketDefinition captionEn=\"Match Corners Odd/Even\" captionEl=\"Μονά Ή Ζυγά Κόρνερ Αγώνα\"> <Odds> <Bet code=\"1\" name=\"Odd\" captionEn=\"Odd\" settleRule=\"([TotalCorners] % 2) = 1\" /> <Bet code=\"0\" name=\"Even\" captionEn=\"Even\" settleRule=\"([TotalCorners] % 2) = 0\" /> </Odds> </MarketDefinition> </NewMarket> <NewMarket sysname=\"SOCCER_CORNERS_FIRST_HALF_ODD_EVEN\" name=\"1st Half Corners Odd/Even\" voidRule=\"false\" settleRule=\"[Period] &gt;= [HT]\"> <Mappings> <OldMarket sysname=\"SOCCER_CORNERS_FIRST_HALF_ODD_EVEN\" /> </Mappings> <MarketDefinition captionEn=\"1st Half Odd/Even Corners\" captionEl=\"Μονά Ή Ζυγά Κόρνερ 1ου Ημιχρόνου\"> <Odds> <Bet code=\"1\" name=\"Odd\" captionEn=\"Odd\" settleRule=\"([TotalCorners1H] % 2) = 1\" /> <Bet code=\"0\" name=\"Even\" captionEn=\"Even\" settleRule=\"([TotalCorners1H] % 2) = 0\" /> </Odds> </MarketDefinition> </NewMarket> <NewMarket sysname=\"SOCCER_CORNERS_SECOND_HALF_ODD_EVEN\" name=\"2nd Half Corners Odd/Even\" voidRule=\"false\" settleRule=\"[Period] &gt;= [FT]\"> <Mappings> <OldMarket sysname=\"SOCCER_CORNERS_SECOND_HALF_ODD_EVEN\" /> </Mappings> <MarketDefinition captionEn=\"2nd Half Odd/Even Corners\" captionEl=\"Μονά Ή Ζυγά Κόρνερ 2ου Ημιχρόνου\"> <Odds> <Bet code=\"1\" name=\"Odd\" captionEn=\"Odd\" settleRule=\"([TotalCorners2H] % 2) = 1\" /> <Bet code=\"0\" name=\"Even\" captionEn=\"Even\" settleRule=\"([TotalCorners2H] % 2) = 0\" /> </Odds> </MarketDefinition> </NewMarket> <NewMarket sysname=\"SOCCER_CORNERS_RESULT_NO_DRAW\" name=\"Corners Draw No Bet\" voidRule=\"[Period] &gt;= [FT] &amp;&amp; [HomeCorners] = [AwayCorners]\" settleRule=\"[Period] &gt;= [FT] &amp;&amp; [HomeCorners] != [AwayCorners]\"> <Mappings> <OldMarket sysname=\"SOCCER_CORNERS_RESULT_NO_DRAW\" /> </Mappings> <MarketDefinition captionEn=\"Match Corners Draw no bet\" captionEl=\"Νικητής Κόρνερ Αγώνα Ισοπαλία ΄Οχι Στοίχημα\"> <Odds> <Bet code=\"1\" name=\"Home\" captionEn=\"{HomeTeam}\" settleRule=\"[HomeCorners] &gt; [AwayCorners]\" /> <Bet code=\"2\" name=\"Away\" captionEn=\"{AwayTeam}\" settleRule=\"[HomeCorners] &lt; [AwayCorners]\" /> </Odds> </MarketDefinition> </NewMarket>"; // 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/