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

Language

Generated Code

import java.util.regex.Matcher; import java.util.regex.Pattern; public class Example { public static void main(String[] args) { final String regex = "\\{\\s*\\\"MapObject((?!MapObject)[\\s\\S])+\\\"Type\\\"\\s*:\\s*\\\"moReference(?:Point|Line)ID\\\"((?!MapObject)[\\s\\S])+\\},?\\s*"; final String string = "[\n" + " {\n" + " \"MapObject\" : {\n" + " \"BoundingBox\" : [ -1313.574, -1010.804, -1113.574, -810.804 ],\n" + " \"Caption\" : \"Ref46\",\n" + " \"Comment\" : \"\",\n" + " \"Position\" : {\n" + " \"CPosition\" : [ -1213.574, -910.804, 0, 0 ]\n" + " },\n" + " \"Size\" : {\n" + " \"CPosition\" : [ 100, 100, 0, 0 ]\n" + " },\n" + " \"Type\" : \"moReferencePointID\"\n" + " }\n" + " },\n" + " {\n" + " \"MapObject\" : {\n" + " \"BoundingBox\" : [ -1313.06, 495.39, -1113.06, 695.39 ],\n" + " \"Caption\" : \"Ref47\",\n" + " \"Comment\" : \"\",\n" + " \"Position\" : {\n" + " \"CPosition\" : [ -1213.06, 595.39, 0, 0 ]\n" + " },\n" + " \"Size\" : {\n" + " \"CPosition\" : [ 100, 100, 0, 0 ]\n" + " },\n" + " \"Type\" : \"moReferencePointID\"\n" + " }\n" + " },\n" + " {\n" + " \"MapObject\" : {\n" + " \"BoundingBox\" : [ -18070, 1180, -17870, 1380 ],\n" + " \"Caption\" : \"Path way84\",\n" + " \"Comment\" : \"\",\n" + " \"ExecutableMapObject\" : {\n" + " \"BehaviourList\" : [\n" + " {\n" + " \"Speed\" : 200,\n" + " \"Type\" : \"bcSpeed\"\n" + " },\n" + " {\n" + " \"AvoidanceSpeed\" : 150,\n" + " \"FailureAction\" : 0,\n" + " \"FailureRetries\" : 60,\n" + " \"FailureWait\" : 10,\n" + " \"PathMode\" : 2,\n" + " \"PerSegment\" : 15,\n" + " \"ReturnToStart\" : 0,\n" + " \"ScanAngle\" : 0.06981317007977778,\n" + " \"Type\" : \"bcObstacleAvoidance\",\n" + " \"Wait\" : 10,\n" + " \"WaitUnits\" : 2\n" + " },\n" + " {\n" + " \"BinarySensorStates\" : 3,\n" + " \"SensorSensitivityList\" : [\n" + " {\n" + " \"IgnoreMapData\" : false,\n" + " \"Mask\" : 65536,\n" + " \"SpeedCapDistance\" : 70,\n" + " \"SpeedCapEnabled\" : true,\n" + " \"StopDistance\" : 70\n" + " },\n" + " {\n" + " \"IgnoreMapData\" : false,\n" + " \"Mask\" : 131072,\n" + " \"SpeedCapDistance\" : 70,\n" + " \"SpeedCapEnabled\" : true,\n" + " \"StopDistance\" : 70\n" + " },\n" + " {\n" + " \"IgnoreMapData\" : false,\n" + " \"Mask\" : 262144,\n" + " \"SpeedCapDistance\" : 240,\n" + " \"SpeedCapEnabled\" : true,\n" + " \"StopDistance\" : 240\n" + " },\n" + " {\n" + " \"IgnoreMapData\" : false,\n" + " \"Mask\" : 524288,\n" + " \"SpeedCapDistance\" : 240,\n" + " \"SpeedCapEnabled\" : true,\n" + " \"StopDistance\" : 240\n" + " },\n" + " {\n" + " \"IgnoreMapData\" : false,\n" + " \"Mask\" : 1048576,\n" + " \"SpeedCapDistance\" : 240,\n" + " \"SpeedCapEnabled\" : true,\n" + " \"StopDistance\" : 240\n" + " },\n" + " {\n" + " \"IgnoreMapData\" : false,\n" + " \"Mask\" : 2097152,\n" + " \"SpeedCapDistance\" : 280,\n" + " \"SpeedCapEnabled\" : true,\n" + " \"StopDistance\" : 280\n" + " },\n" + " {\n" + " \"IgnoreMapData\" : false,\n" + " \"Mask\" : 4194304,\n" + " \"SpeedCapDistance\" : 320,\n" + " \"SpeedCapEnabled\" : true,\n" + " \"StopDistance\" : 320\n" + " },\n" + " {\n" + " \"IgnoreMapData\" : false,\n" + " \"Mask\" : 8388608,\n" + " \"SpeedCapDistance\" : 0,\n" + " \"SpeedCapEnabled\" : false,\n" + " \"StopDistance\" : 0\n" + " },\n" + " {\n" + " \"IgnoreMapData\" : false,\n" + " \"Mask\" : 16777216,\n" + " \"SpeedCapDistance\" : 0,\n" + " \"SpeedCapEnabled\" : false,\n" + " \"StopDistance\" : 0\n" + " }\n" + " ],\n" + " \"SpeedCap\" : 30,\n" + " \"Type\" : \"bcObstacleSensitivity2\"\n" + " }\n" + " ],\n" + " \"EntryPoint\" : {\n" + " \"CPosition\" : [ -13450, 1290, 0, 0 ]\n" + " },\n" + " \"ExitPoint\" : {\n" + " \"CPosition\" : [ -17970, 1280, 0, 0 ]\n" + " },\n" + " \"RelocateOnExecute\" : false,\n" + " \"Required\" : false,\n" + " \"TwoWay\" : false\n" + " },\n" + " \"GoalSet\" : [\n" + " {\n" + " \"Path\" : {\n" + " \"PathType\" : \"pitLinear\",\n" + " \"Segments\" : [\n" + " {\n" + " \"Segment\" : [ -13450, 1290, -17970, 1280 ]\n" + " }\n" + " ]\n" + " }\n" + " }\n" + " ],\n" + " \"Position\" : {\n" + " \"CPosition\" : [ -17970, 1280, 0, 0 ]\n" + " },\n" + " \"Size\" : {\n" + " \"CPosition\" : [ 0, 0, 0, 0 ]\n" + " },\n" + " \"Type\" : \"moLinePathID\"\n" + " }\n" + " },\n" + " {\n" + " \"MapObject\" : {\n" + " \"AttributeList\" : [\n" + " [ \"Lock\", \"{} LabInt {}\" ]\n" + " ],\n" + " \"BoundingBox\" : [ -12350, -500, -12150, -300 ],\n" + " \"Caption\" : \"QUEUE/LabInt\",\n" + " \"Comment\" : \"\",\n" + " \"ExecutableMapObject\" : {\n" + " \"EntryPoint\" : {\n" + " \"CPosition\" : [ -12250, -400, 0, 0 ]\n" + " },\n" + " \"ExitPoint\" : {\n" + " \"CPosition\" : [ -12250, -400, 0, 0 ]\n" + " },\n" + " \"RelocateOnExecute\" : false,\n" + " \"Required\" : false,\n" + " \"TwoWay\" : false\n" + " },\n" + " \"Position\" : {\n" + " \"CPosition\" : [ -12250, -400, 0, 0 ]\n" + " },\n" + " \"Size\" : {\n" + " \"CPosition\" : [ 100, 100, 0, 0 ]\n" + " },\n" + " \"Type\" : \"moHotPointID\"\n" + " }\n" + " },\n" + "]"; final Pattern pattern = Pattern.compile(regex); final Matcher matcher = pattern.matcher(string); while (matcher.find()) { System.out.println("Full match: " + matcher.group(0)); for (int i = 1; i <= matcher.groupCount(); i++) { System.out.println("Group " + i + ": " + matcher.group(i)); } } } }

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 Java, please visit: https://docs.oracle.com/javase/7/docs/api/java/util/regex/Pattern.html