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 <StringConstants.au3> ; to declare the Constants of StringRegExp #include <Array.au3> ; UDF needed for _ArrayDisplay and _ArrayConcatenate Local $sRegex = "(?s)(?<first><<<<<<< HEAD\n.*?)(?<========)|(?<second>(?=>>>>>>>).*?\n)" Local $sString = "<<<<<<< HEAD" & @CRLF & _ "import { readdir } from "fs";" & @CRLF & _ "import { createServer } from "../src/server.js";" & @CRLF & _ "import Jasmine from 'jasmine';" & @CRLF & _ "import dotenv from 'dotenv';" & @CRLF & _ "" & @CRLF & _ "const jasmine = new Jasmine();" & @CRLF & _ "=======" & @CRLF & _ "import { start } from "../src/index.js";" & @CRLF & _ "" & @CRLF & _ "import dotenv from 'dotenv';" & @CRLF & _ "import { readdir } from "fs";" & @CRLF & _ "import Jasmine from 'jasmine';" & @CRLF & _ "import { resolve } from 'path';" & @CRLF & _ "" & @CRLF & _ ">>>>>>> c80322f... Refactor codebase. Removed ml parts into separate project." & @CRLF & _ "// jasmine.loadConfigFile(`tests/jasmine.json`);" & @CRLF & _ "" & @CRLF & _ "const importTests = () => {" & @CRLF & _ " return new Promise((resolve, reject) => {" & @CRLF & _ " readdir(`./tests`, (err, files) => {" & @CRLF & _ " if (err) {" & @CRLF & _ " reject(err);" & @CRLF & _ " }" & @CRLF & _ " files = files.filter(file => { " & @CRLF & _ " return file.includes(`test.js`);" & @CRLF & _ " });" & @CRLF & _ " console.log(files);" & @CRLF & _ " files = files.map(file => { " & @CRLF & _ " const relativePath = `./${file}`;" & @CRLF & _ " return import(relativePath)" & @CRLF & _ " .catch(error => {" & @CRLF & _ " console.error(`** Error loading ` + relativePath + `: `);" & @CRLF & _ " console.error(error);" & @CRLF & _ " process.exit(1);" & @CRLF & _ " });" & @CRLF & _ " });" & @CRLF & _ "" & @CRLF & _ " resolve(Promise.all(files));" & @CRLF & _ " });" & @CRLF & _ " });" & @CRLF & _ "};" & @CRLF & _ "" & @CRLF & _ "const runTests = () => {" & @CRLF & _ "<<<<<<< HEAD" & @CRLF & _ " dotenv.config();" & @CRLF & _ "" & @CRLF & _ " importTests().then(() => {" & @CRLF & _ " const server = createServer({" & @CRLF & _ " useAuth: false," & @CRLF & _ " });" & @CRLF & _ "" & @CRLF & _ " server.options.port = 4040;" & @CRLF & _ " process.env.GRAPHQL_ENDPOINT = `http://127.0.0.1:4040`;" & @CRLF & _ "" & @CRLF & _ " server.start(() => {" & @CRLF & _ " console.log(`Test server is running on 127.0.0.1:${server.options.port}`);" & @CRLF & _ " jasmine.execute();" & @CRLF & _ " });" & @CRLF & _ "=======" & @CRLF & _ " const jasmine = new Jasmine();" & @CRLF & _ " const environment = process.env.NODE_ENV || `staging`;" & @CRLF & _ "" & @CRLF & _ " dotenv.config({" & @CRLF & _ " path: resolve(`../src/config/${environment}/.env`)," & @CRLF & _ " });" & @CRLF & _ "" & @CRLF & _ " importTests().then(async () => {" & @CRLF & _ " process.env.MONGODB_URIS = `mongodb+srv://f4a-shared-t95ry.gcp.mongodb.net/test`;" & @CRLF & _ " process.env.GRAPHQL_ENDPOINT = `http://127.0.0.1:4040`;" & @CRLF & _ " process.env.PORT = `4040`;" & @CRLF & _ " await start();" & @CRLF & _ " console.log(`Test server is running on 127.0.0.1:${server.port}`);" & @CRLF & _ " jasmine.execute();" & @CRLF & _ ">>>>>>> c80322f... Refactor codebase. Removed ml parts into separate project." & @CRLF & _ " });" & @CRLF & _ "};" & @CRLF & _ "runTests();" Local $aArray = StringRegExp($sString, $sRegex, $STR_REGEXPARRAYGLOBALFULLMATCH) Local $aFullArray[0] For $i = 0 To UBound($aArray) -1 _ArrayConcatenate($aFullArray, $aArray[$i]) Next $aArray = $aFullArray ; Present the entire match result _ArrayDisplay($aArray, "Result")

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 AutoIt, please visit: https://www.autoitscript.com/autoit3/docs/functions/StringRegExp.htm