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

/
/
guxm

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 $sRegex = "(?uxm)(?(DEFINE)" & @CRLF & _ " (?<currency_symbol> \p{Sc} )" & @CRLF & _ " (?<leading_group> [1-9] \d{0,2}+ )" & @CRLF & _ " (?<group> \d{3} )" & @CRLF & _ " (?<non_leading_groups> (?&group) (?:(?&group_delim)(?&group))*+ )" & @CRLF & _ " (?<decimal_delim>" & @CRLF & _ " (?# Use the opposite of group_delim. )" & @CRLF & _ " (?(group_delim_comma)" & @CRLF & _ " \." & @CRLF & _ " | (?(group_delim_period)" & @CRLF & _ " ," & @CRLF & _ " | [,.] (?# There's no definitive grouping_delim. )" & @CRLF & _ " )" & @CRLF & _ " )" & @CRLF & _ " )" & @CRLF & _ ")" & @CRLF & _ "" & @CRLF & _ "^" & @CRLF & _ "(?>" & @CRLF & _ " (?&currency_symbol)" & @CRLF & _ " (?&leading_group)" & @CRLF & _ " (?:" & @CRLF & _ " (?<group_delim>" & @CRLF & _ " (?<group_delim_comma> , ) |" & @CRLF & _ " (?<group_delim_period> \. ) |" & @CRLF & _ " \ (?# Allow whitespace as a delimiter. )" & @CRLF & _ " )" & @CRLF & _ " (?&non_leading_groups)" & @CRLF & _ " | \d*+ (?# It's also possible that there's no delimiter. )" & @CRLF & _ " )" & @CRLF & _ ")" & @CRLF & _ "(?:" & @CRLF & _ " (?&decimal_delim)" & @CRLF & _ " \d*+" & @CRLF & _ ")?+" & @CRLF & _ "$" Local $sString = "We want to match these:" & @CRLF & _ "$1" & @CRLF & _ "$10" & @CRLF & _ "$100" & @CRLF & _ "$1000" & @CRLF & _ "$1,000" & @CRLF & _ "$10,000" & @CRLF & _ "$100,000" & @CRLF & _ "$1,000,000" & @CRLF & _ "$1.00" & @CRLF & _ "$100.00" & @CRLF & _ "$10,000.00" & @CRLF & _ "$1,000,000.00" & @CRLF & _ "$1.000.000,00" & @CRLF & _ "$1.000" & @CRLF & _ "$1.000.000" & @CRLF & _ "$1,00" & @CRLF & _ "$1.000,00" & @CRLF & _ "$10000000000000" & @CRLF & _ "" & @CRLF & _ "We don't want to match these:" & @CRLF & _ "$1,000,00" & @CRLF & _ "$1,00,00" & @CRLF & _ "$1.00.000" & @CRLF & _ "" & @CRLF & _ "A few different currency symbols that we want to match:" & @CRLF & _ "$1" & @CRLF & _ "¢1" & @CRLF & _ "£1" & @CRLF & _ "¤1" & @CRLF & _ "¥1" & @CRLF & _ "₠1" & @CRLF & _ "₡1" & @CRLF & _ "₢1" & @CRLF & _ "₣1" & @CRLF & _ "₤1" & @CRLF & _ "₥1" & @CRLF & _ "₦1" & @CRLF & _ "₧1" & @CRLF & _ "₩1" & @CRLF & _ "₪1" & @CRLF & _ "₫1" & @CRLF & _ "€1" & @CRLF & _ "₭1" & @CRLF & _ "₮1" & @CRLF & _ "₯1" & @CRLF & _ "₰1" & @CRLF & _ "₱1" & @CRLF & _ "₲1" & @CRLF & _ "₳1" & @CRLF & _ "₴1" & @CRLF & _ "₵1" & @CRLF & _ "₶1" & @CRLF & _ "₷1" & @CRLF & _ "₸1" & @CRLF & _ "₹1" & @CRLF & _ "₺1" & @CRLF & _ "₻1" & @CRLF & _ "₼1" & @CRLF & _ "₽1" & @CRLF & _ "" & @CRLF & _ "Nearby symbols that share some bytes (UTF-8) that we don't want to match:" & @CRLF & _ "¡1" & @CRLF & _ "¦1" & @CRLF & _ "§1" & @CRLF & _ "©1" & @CRLF & _ "ₔ1" 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