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

const regex = /(compile|testCompile|implementation|testImplementation|compileOnly|runtime|testRuntime|[a-zA-Z0-9_]{1,100})\sgroup\:\s['"](.*)['"],\sname\:\s['"](.*)['"],\sversion\:\s['"](.*)['"]|(compile|testCompile|implementation|testImplementation|compileOnly|runtime|testRuntime|[a-zA-Z0-9_]{1,100})\s['"](.*):(.*):(.*)['"]|(compile|testCompile|implementation|testImplementation|compileOnly|runtime|testRuntime|[a-zA-Z0-9_]{1,100})\(['"](.*):(.*):(.*)['"]\)/gm; // Alternative syntax using RegExp constructor // const regex = new RegExp('(compile|testCompile|implementation|testImplementation|compileOnly|runtime|testRuntime|[a-zA-Z0-9_]{1,100})\\sgroup\\:\\s[\'"](.*)[\'"],\\sname\\:\\s[\'"](.*)[\'"],\\sversion\\:\\s[\'"](.*)[\'"]|(compile|testCompile|implementation|testImplementation|compileOnly|runtime|testRuntime|[a-zA-Z0-9_]{1,100})\\s[\'"](.*):(.*):(.*)[\'"]|(compile|testCompile|implementation|testImplementation|compileOnly|runtime|testRuntime|[a-zA-Z0-9_]{1,100})\\([\'"](.*):(.*):(.*)[\'"]\\)', 'gm') const str = `compile group: 'commons-net', name: 'commons-net', version: '3.1.2' testCompile group: 'org.spockframework', name: 'spock-core', version: '2.0-M1-groovy-3.0' implementation group: 'commons-net', name: 'commons-net', version: '3.7.2' testImplementation group: 'org.spockframework', name: 'spock-core', version: '2.0-M4-groovy-3.0' implementation "org.apache.httpcomponents:httpclient:latest.release" implementation 'org.apache.httpcomponents:httpclient:1.0.0' compile "com.h2database:h2:1.4.197" compile("com.github.bkenn:kfoenix:0.1.2-SNAPSHOT") compile group: "com.jfoenix", name: "jfoenix", version: "8.0.7" compile "org.jooq:jooq:3.11.5" jooqRuntime('com.h2database:h2:1.4.197') jooqRuntime("com.h2database:h2:1.4.197") jooqRuntime 'com.h2database:h2:1.4.197' jooqRuntime "com.h2database:h2:1.4.197"`; // Reset `lastIndex` if this regex is defined globally // regex.lastIndex = 0; let m; while ((m = regex.exec(str)) !== null) { // This is necessary to avoid infinite loops with zero-width matches if (m.index === regex.lastIndex) { regex.lastIndex++; } // The result can be accessed through the `m`-variable. m.forEach((match, groupIndex) => { console.log(`Found match, group ${groupIndex}: ${match}`); }); }

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 JavaScript, please visit: https://developer.mozilla.org/en/docs/Web/JavaScript/Guide/Regular_Expressions