Regular Expressions 101

Save & Manage Regex

  • Current Version: 1
  • Save & Share
  • Community Library

Flavor

  • PCRE2 (PHP)
  • ECMAScript (JavaScript)
  • Python
  • Golang
  • Java
  • .NET 7.0 (C#)
  • Rust
  • PCRE (Legacy)
  • Regex Flavor Guide

Function

  • Match
  • Substitution
  • List
  • Unit Tests
Sponsors
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

#include <StringConstants.au3> ; to declare the Constants of StringRegExp #include <Array.au3> ; UDF needed for _ArrayDisplay and _ArrayConcatenate Local $sRegex = "(?m)(?i)(?:b[\"'\),\[\x5c]*(?:(?:(?:\|\||&&)[\s\x0b]*)?\$[!#\(\*\-0-9\?@_a-\{]*)?\x5c?u[\"'\),\[\x5c]*(?:(?:(?:\|\||&&)[\s\x0b]*)?\$[!#\(\*\-0-9\?@_a-\{]*)?\x5c?s[\"'\),\[\x5c]*(?:(?:(?:\|\||&&)[\s\x0b]*)?\$[!#\(\*\-0-9\?@_a-\{]*)?\x5c?y[\"'\),\[\x5c]*(?:(?:(?:\|\||&&)[\s\x0b]*)?\$[!#\(\*\-0-9\?@_a-\{]*)?\x5c?b[\"'\),\[\x5c]*(?:(?:(?:\|\||&&)[\s\x0b]*)?\$[!#\(\*\-0-9\?@_a-\{]*)?\x5c?o[\"'\),\[\x5c]*(?:(?:(?:\|\||&&)[\s\x0b]*)?\$[!#\(\*\-0-9\?@_a-\{]*)?\x5c?x|c[\"'\),\[\x5c]*(?:(?:(?:\|\||&&)[\s\x0b]*)?\$[!#\(\*\-0-9\?@_a-\{]*)?\x5c?o[\"'\),\[\x5c]*(?:(?:(?:\|\||&&)[\s\x0b]*)?\$[!#\(\*\-0-9\?@_a-\{]*)?\x5c?m[\"'\),\[\x5c]*(?:(?:(?:\|\||&&)[\s\x0b]*)?\$[!#\(\*\-0-9\?@_a-\{]*)?\x5c?m[\"'\),\[\x5c]*(?:(?:(?:\|\||&&)[\s\x0b]*)?\$[!#\(\*\-0-9\?@_a-\{]*)?\x5c?a[\"'\),\[\x5c]*(?:(?:(?:\|\||&&)[\s\x0b]*)?\$[!#\(\*\-0-9\?@_a-\{]*)?\x5c?n[\"'\),\[\x5c]*(?:(?:(?:\|\||&&)[\s\x0b]*)?\$[!#\(\*\-0-9\?@_a-\{]*)?\x5c?d|e[\"'\),\[\x5c]*(?:(?:(?:\|\||&&)[\s\x0b]*)?\$[!#\(\*\-0-9\?@_a-\{]*)?\x5c?(?:n[\"'\),\[\x5c]*(?:(?:(?:\|\||&&)[\s\x0b]*)?\$[!#\(\*\-0-9\?@_a-\{]*)?\x5c?v|v[\"'\),\[\x5c]*(?:(?:(?:\|\||&&)[\s\x0b]*)?\$[!#\(\*\-0-9\?@_a-\{]*)?\x5c?a[\"'\),\[\x5c]*(?:(?:(?:\|\||&&)[\s\x0b]*)?\$[!#\(\*\-0-9\?@_a-\{]*)?\x5c?l)|[ls][\"'\),\[\x5c]*(?:(?:(?:\|\||&&)[\s\x0b]*)?\$[!#\(\*\-0-9\?@_a-\{]*)?\x5c?t[\"'\),\[\x5c]*(?:(?:(?:\|\||&&)[\s\x0b]*)?\$[!#\(\*\-0-9\?@_a-\{]*)?\x5c?r[\"'\),\[\x5c]*(?:(?:(?:\|\||&&)[\s\x0b]*)?\$[!#\(\*\-0-9\?@_a-\{]*)?\x5c?a[\"'\),\[\x5c]*(?:(?:(?:\|\||&&)[\s\x0b]*)?\$[!#\(\*\-0-9\?@_a-\{]*)?\x5c?c[\"'\),\[\x5c]*(?:(?:(?:\|\||&&)[\s\x0b]*)?\$[!#\(\*\-0-9\?@_a-\{]*)?\x5c?e|n[\"'\),\[\x5c]*(?:(?:(?:\|\||&&)[\s\x0b]*)?\$[!#\(\*\-0-9\?@_a-\{]*)?\x5c?o[\"'\),\[\x5c]*(?:(?:(?:\|\||&&)[\s\x0b]*)?\$[!#\(\*\-0-9\?@_a-\{]*)?\x5c?h[\"'\),\[\x5c]*(?:(?:(?:\|\||&&)[\s\x0b]*)?\$[!#\(\*\-0-9\?@_a-\{]*)?\x5c?u[\"'\),\[\x5c]*(?:(?:(?:\|\||&&)[\s\x0b]*)?\$[!#\(\*\-0-9\?@_a-\{]*)?\x5c?p|t[\"'\),\[\x5c]*(?:(?:(?:\|\||&&)[\s\x0b]*)?\$[!#\(\*\-0-9\?@_a-\{]*)?\x5c?i[\"'\),\[\x5c]*(?:(?:(?:\|\||&&)[\s\x0b]*)?\$[!#\(\*\-0-9\?@_a-\{]*)?\x5c?m[\"'\),\[\x5c]*(?:(?:(?:\|\||&&)[\s\x0b]*)?\$[!#\(\*\-0-9\?@_a-\{]*)?\x5c?e(?:[\"'\),\[\x5c]*(?:(?:(?:\|\||&&)[\s\x0b]*)?\$[!#\(\*\-0-9\?@_a-\{]*)?\x5c?o[\"'\),\[\x5c]*(?:(?:(?:\|\||&&)[\s\x0b]*)?\$[!#\(\*\-0-9\?@_a-\{]*)?\x5c?u[\"'\),\[\x5c]*(?:(?:(?:\|\||&&)[\s\x0b]*)?\$[!#\(\*\-0-9\?@_a-\{]*)?\x5c?t)?|w[\"'\),\[\x5c]*(?:(?:(?:\|\||&&)[\s\x0b]*)?\$[!#\(\*\-0-9\?@_a-\{]*)?\x5c?a[\"'\),\[\x5c]*(?:(?:(?:\|\||&&)[\s\x0b]*)?\$[!#\(\*\-0-9\?@_a-\{]*)?\x5c?t[\"'\),\[\x5c]*(?:(?:(?:\|\||&&)[\s\x0b]*)?\$[!#\(\*\-0-9\?@_a-\{]*)?\x5c?c[\"'\),\[\x5c]*(?:(?:(?:\|\||&&)[\s\x0b]*)?\$[!#\(\*\-0-9\?@_a-\{]*)?\x5c?h|[\n\r;=`\{]|\|\|?|&&?|\$(?:\(\(?|[\[\{])|<(?:\(|<<)|>\(|\([\s\x0b]*\))[\s\x0b]*(?:[\$\{]|(?:[\s\x0b]*\(|!)[\s\x0b]*|[0-9A-Z_a-z]+=(?:[^\s\x0b]*|\$(?:.*|.*)|[<>].*|'.*'|\".*\")[\s\x0b]+)*[\s\x0b]*[\"']*(?:[\"'-\+\--9\?A-\]_a-z\|]+/)?[\"'\x5c]*(?:7[\"'\),\[\x5c]*(?:(?:(?:\|\||&&)[\s\x0b]*)?\$[!#\(\*\-0-9\?@_a-\{]*)?\x5c?z(?:[\"'\),\[\x5c]*(?:(?:(?:\|\||&&)[\s\x0b]*)?\$[!#\(\*\-0-9\?@_a-\{]*)?\x5c?[arx])?|(?:(?:b[\"'\),\[\x5c]*(?:(?:(?:\|\||&&)[\s\x0b]*)?\$[!#\(\*\-0-9\?@_a-\{]*)?\x5c?z|x)[\"'\),\[\x5c]*(?:(?:(?:\|\||&&)[\s\x0b]*)?\$[!#\(\*\-0-9\?@_a-\{]*)?\x5c?z|h[\"'\),\[\x5c]*(?:(?:(?:\|\||&&)[\s\x0b]*)?\$[!#\(\*\-0-9\?@_a-\{]*)?\x5c?u[\"'\),\[\x5c]*(?:(?:(?:\|\||&&)[\s\x0b]*)?\$[!#\(\*\-0-9\?@_a-\{]*)?\x5c?p)[\"'\),\[\x5c]*(?:(?:(?:\|\||&&)[\s\x0b]*)?\$[!#\(\*\-0-9\?@_a-\{]*)?\x5c?[\s\x0b&\),<>\|].*|[ckz][\"'\),\[\x5c]*(?:(?:(?:\|\||&&)[\s\x0b]*)?\$[!#\(\*\-0-9\?@_a-\{]*)?\x5c?s[\"'\),\[\x5c]*(?:(?:(?:\|\||&&)[\s\x0b]*)?\$[!#\(\*\-0-9\?@_a-\{]*)?\x5c?h|d[\"'\),\[\x5c]*(?:(?:(?:\|\||&&)[\s\x0b]*)?\$[!#\(\*\-0-9\?@_a-\{]*)?\x5c?f|e[\"'\),\[\x5c]*(?:(?:(?:\|\||&&)[\s\x0b]*)?\$[!#\(\*\-0-9\?@_a-\{]*)?\x5c?(?:n[\"'\),\[\x5c]*(?:(?:(?:\|\||&&)[\s\x0b]*)?\$[!#\(\*\-0-9\?@_a-\{]*)?\x5c?v[\"'\),\[\x5c]*(?:(?:(?:\|\||&&)[\s\x0b]*)?\$[!#\(\*\-0-9\?@_a-\{]*)?\x5c?[\s\x0b&\),<>\|].*|s[\"'\),\[\x5c]*(?:(?:(?:\|\||&&)[\s\x0b]*)?\$[!#\(\*\-0-9\?@_a-\{]*)?\x5c?h)|f[\"'\),\[\x5c]*(?:(?:(?:\|\||&&)[\s\x0b]*)?\$[!#\(\*\-0-9\?@_a-\{]*)?\x5c?[dg]|g[\"'\),\[\x5c]*(?:(?:(?:\|\||&&)[\s\x0b]*)?\$[!#\(\*\-0-9\?@_a-\{]*)?\x5c?(?:c[\"'\),\[\x5c]*(?:(?:(?:\|\||&&)[\s\x0b]*)?\$[!#\(\*\-0-9\?@_a-\{]*)?\x5c?c[\"'\),\[\x5c]*(?:(?:(?:\|\||&&)[\s\x0b]*)?\$[!#\(\*\-0-9\?@_a-\{]*)?\x5c?(?:[&,<>\|]|(?:[\-\.0-9A-Z_a-z][\"'\[\x5c]*(?:(?:(?:\|\||&&)[\s\x0b]*)?\$[!#\*\-0-9\?@_a-\{]*)?\x5c?)+[\s\x0b&,<>\|]).*|p[\"'\),\[\x5c]*(?:(?:(?:\|\||&&)[\s\x0b]*)?\$[!#\(\*\-0-9\?@_a-\{]*)?\x5c?g)|i[\"'\),\[\x5c]*(?:(?:(?:\|\||&&)[\s\x0b]*)?\$[!#\(\*\-0-9\?@_a-\{]*)?\x5c?r[\"'\),\[\x5c]*(?:(?:(?:\|\||&&)[\s\x0b]*)?\$[!#\(\*\-0-9\?@_a-\{]*)?\x5c?b|l[\"'\),\[\x5c]*(?:(?:(?:\|\||&&)[\s\x0b]*)?\$[!#\(\*\-0-9\?@_a-\{]*)?\x5c?(?:s|z[\"'\),\[\x5c]*(?:(?:(?:\|\||&&)[\s\x0b]*)?\$[!#\(\*\-0-9\?@_a-\{]*)?\x5c?(?:4|[\s\x0b&\),<>\|].*))|p[\"'\),\[\x5c]*(?:(?:(?:\|\||&&)[\s\x0b]*)?\$[!#\(\*\-0-9\?@_a-\{]*)?\x5c?(?:h[\"'\),\[\x5c]*(?:(?:(?:\|\||&&)[\s\x0b]*)?\$[!#\(\*\-0-9\?@_a-\{]*)?\x5c?p[\"'\),\[\x5c]*(?:(?:(?:\|\||&&)[\s\x0b]*)?\$[!#\(\*\-0-9\?@_a-\{]*)?\x5c?[\s\x0b&\),<>\|].*|w[\"'\),\[\x5c]*(?:(?:(?:\|\||&&)[\s\x0b]*)?\$[!#\(\*\-0-9\?@_a-\{]*)?\x5c?d|x[\"'\),\[\x5c]*(?:(?:(?:\|\||&&)[\s\x0b]*)?\$[!#\(\*\-0-9\?@_a-\{]*)?\x5c?z)|r[\"'\),\[\x5c]*(?:(?:(?:\|\||&&)[\s\x0b]*)?\$[!#\(\*\-0-9\?@_a-\{]*)?\x5c?c(?:[\"'\),\[\x5c]*(?:(?:(?:\|\||&&)[\s\x0b]*)?\$[!#\(\*\-0-9\?@_a-\{]*)?\x5c?p[\"'\),\[\x5c]*(?:(?:(?:\|\||&&)[\s\x0b]*)?\$[!#\(\*\-0-9\?@_a-\{]*)?\x5c?[\s\x0b&\),<>\|].*)?|s[\"'\),\[\x5c]*(?:(?:(?:\|\||&&)[\s\x0b]*)?\$[!#\(\*\-0-9\?@_a-\{]*)?\x5c?(?:c[\"'\),\[\x5c]*(?:(?:(?:\|\||&&)[\s\x0b]*)?\$[!#\(\*\-0-9\?@_a-\{]*)?\x5c?p|(?:e[\"'\),\[\x5c]*(?:(?:(?:\|\||&&)[\s\x0b]*)?\$[!#\(\*\-0-9\?@_a-\{]*)?\x5c?d|(?:s[\"'\),\[\x5c]*(?:(?:(?:\|\||&&)[\s\x0b]*)?\$[!#\(\*\-0-9\?@_a-\{]*)?\x5c?)?h)[\"'\),\[\x5c]*(?:(?:(?:\|\||&&)[\s\x0b]*)?\$[!#\(\*\-0-9\?@_a-\{]*)?\x5c?[\s\x0b&\),<>\|].*|v[\"'\),\[\x5c]*(?:(?:(?:\|\||&&)[\s\x0b]*)?\$[!#\(\*\-0-9\?@_a-\{]*)?\x5c?n)|u[\"'\),\[\x5c]*(?:(?:(?:\|\||&&)[\s\x0b]*)?\$[!#\(\*\-0-9\?@_a-\{]*)?\x5c?d[\"'\),\[\x5c]*(?:(?:(?:\|\||&&)[\s\x0b]*)?\$[!#\(\*\-0-9\?@_a-\{]*)?\x5c?p|w[\"'\),\[\x5c]*(?:(?:(?:\|\||&&)[\s\x0b]*)?\$[!#\(\*\-0-9\?@_a-\{]*)?\x5c?3[\"'\),\[\x5c]*(?:(?:(?:\|\||&&)[\s\x0b]*)?\$[!#\(\*\-0-9\?@_a-\{]*)?\x5c?m)\b" Local $sString = ";{7,z,x}" 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