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

/
/
gmi

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 = "(?mi)(^([0-9[:punct:]0-9]+|\p{No}|\d\p{No}) ?\s* ?([0-9[:punct:]0-9]+|\p{No}|\d\p{No})* ?\w* (cup|tsp|tbps|tablespoon|teaspoon|small|medium|pint|ounce|pound))|(^(small|Large|medium|Fresh))" Local $sString = "Should match:" & @CRLF & _ "1 Cups" & @CRLF & _ "2 tsp" & @CRLF & _ "3 tbps" & @CRLF & _ "1/2 tablespoon" & @CRLF & _ "3 tablespoons" & @CRLF & _ "1 tablespoon" & @CRLF & _ "3 teaspoons" & @CRLF & _ "1 small" & @CRLF & _ "Small chiles" & @CRLF & _ "23 Small chiles" & @CRLF & _ "1/2 a Small chile" & @CRLF & _ "1 1/2 cups kewpie" & @CRLF & _ "11/2 cups kewpie" & @CRLF & _ "1/3 cup fresh lemon juice" & @CRLF & _ "1 medium onion" & @CRLF & _ "Large" & @CRLF & _ "medium" & @CRLF & _ "Freshly" & @CRLF & _ "1½ cups Kewpie" & @CRLF & _ "½ cups Kewpie" & @CRLF & _ "1 pint" & @CRLF & _ "4 ounces" & @CRLF & _ "1 pound" & @CRLF & _ "2 pounds" & @CRLF & _ "" & @CRLF & _ "Should not match:" & @CRLF & _ "" & @CRLF & _ "1 Make the sauce" & @CRLF & _ "1 toast the bread" & @CRLF & _ "I want to make 1 piece of toast" 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