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
Processing...

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*\"MapObject((?!MapObject)[\s\S])+\"Type\"\s*:\s*\"moReference(?:Point|Line)ID\"((?!MapObject)[\s\S])+},?\s*"#).unwrap(); let string = "[ { \"MapObject\" : { \"BoundingBox\" : [ -1313.574, -1010.804, -1113.574, -810.804 ], \"Caption\" : \"Ref46\", \"Comment\" : \"\", \"Position\" : { \"CPosition\" : [ -1213.574, -910.804, 0, 0 ] }, \"Size\" : { \"CPosition\" : [ 100, 100, 0, 0 ] }, \"Type\" : \"moReferencePointID\" } }, { \"MapObject\" : { \"BoundingBox\" : [ -1313.06, 495.39, -1113.06, 695.39 ], \"Caption\" : \"Ref47\", \"Comment\" : \"\", \"Position\" : { \"CPosition\" : [ -1213.06, 595.39, 0, 0 ] }, \"Size\" : { \"CPosition\" : [ 100, 100, 0, 0 ] }, \"Type\" : \"moReferencePointID\" } }, { \"MapObject\" : { \"BoundingBox\" : [ -18070, 1180, -17870, 1380 ], \"Caption\" : \"Path way84\", \"Comment\" : \"\", \"ExecutableMapObject\" : { \"BehaviourList\" : [ { \"Speed\" : 200, \"Type\" : \"bcSpeed\" }, { \"AvoidanceSpeed\" : 150, \"FailureAction\" : 0, \"FailureRetries\" : 60, \"FailureWait\" : 10, \"PathMode\" : 2, \"PerSegment\" : 15, \"ReturnToStart\" : 0, \"ScanAngle\" : 0.06981317007977778, \"Type\" : \"bcObstacleAvoidance\", \"Wait\" : 10, \"WaitUnits\" : 2 }, { \"BinarySensorStates\" : 3, \"SensorSensitivityList\" : [ { \"IgnoreMapData\" : false, \"Mask\" : 65536, \"SpeedCapDistance\" : 70, \"SpeedCapEnabled\" : true, \"StopDistance\" : 70 }, { \"IgnoreMapData\" : false, \"Mask\" : 131072, \"SpeedCapDistance\" : 70, \"SpeedCapEnabled\" : true, \"StopDistance\" : 70 }, { \"IgnoreMapData\" : false, \"Mask\" : 262144, \"SpeedCapDistance\" : 240, \"SpeedCapEnabled\" : true, \"StopDistance\" : 240 }, { \"IgnoreMapData\" : false, \"Mask\" : 524288, \"SpeedCapDistance\" : 240, \"SpeedCapEnabled\" : true, \"StopDistance\" : 240 }, { \"IgnoreMapData\" : false, \"Mask\" : 1048576, \"SpeedCapDistance\" : 240, \"SpeedCapEnabled\" : true, \"StopDistance\" : 240 }, { \"IgnoreMapData\" : false, \"Mask\" : 2097152, \"SpeedCapDistance\" : 280, \"SpeedCapEnabled\" : true, \"StopDistance\" : 280 }, { \"IgnoreMapData\" : false, \"Mask\" : 4194304, \"SpeedCapDistance\" : 320, \"SpeedCapEnabled\" : true, \"StopDistance\" : 320 }, { \"IgnoreMapData\" : false, \"Mask\" : 8388608, \"SpeedCapDistance\" : 0, \"SpeedCapEnabled\" : false, \"StopDistance\" : 0 }, { \"IgnoreMapData\" : false, \"Mask\" : 16777216, \"SpeedCapDistance\" : 0, \"SpeedCapEnabled\" : false, \"StopDistance\" : 0 } ], \"SpeedCap\" : 30, \"Type\" : \"bcObstacleSensitivity2\" } ], \"EntryPoint\" : { \"CPosition\" : [ -13450, 1290, 0, 0 ] }, \"ExitPoint\" : { \"CPosition\" : [ -17970, 1280, 0, 0 ] }, \"RelocateOnExecute\" : false, \"Required\" : false, \"TwoWay\" : false }, \"GoalSet\" : [ { \"Path\" : { \"PathType\" : \"pitLinear\", \"Segments\" : [ { \"Segment\" : [ -13450, 1290, -17970, 1280 ] } ] } } ], \"Position\" : { \"CPosition\" : [ -17970, 1280, 0, 0 ] }, \"Size\" : { \"CPosition\" : [ 0, 0, 0, 0 ] }, \"Type\" : \"moLinePathID\" } }, { \"MapObject\" : { \"AttributeList\" : [ [ \"Lock\", \"{} LabInt {}\" ] ], \"BoundingBox\" : [ -12350, -500, -12150, -300 ], \"Caption\" : \"QUEUE/LabInt\", \"Comment\" : \"\", \"ExecutableMapObject\" : { \"EntryPoint\" : { \"CPosition\" : [ -12250, -400, 0, 0 ] }, \"ExitPoint\" : { \"CPosition\" : [ -12250, -400, 0, 0 ] }, \"RelocateOnExecute\" : false, \"Required\" : false, \"TwoWay\" : false }, \"Position\" : { \"CPosition\" : [ -12250, -400, 0, 0 ] }, \"Size\" : { \"CPosition\" : [ 100, 100, 0, 0 ] }, \"Type\" : \"moHotPointID\" } }, ]"; // 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/