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

r"
"
gmux

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 $sRegex = "(?mux)^" & @CRLF & _ "(?:" & @CRLF & _ " [ \t]*[(][ \t]*" & @CRLF & _ " (\d+)" & @CRLF & _ " [ \t]*,[ \t]*" & @CRLF & _ " (\d+)" & @CRLF & _ " [ \t]*,[ \t]*" & @CRLF & _ " (\S+)" & @CRLF & _ " [ \t]*[)][ \t]*" & @CRLF & _ ")?" & @CRLF & _ "$" Local $sString = "( 0, 12, Tokenization ) " & @CRLF & _ "( 13 , 15 , is ) " & @CRLF & _ " ( 16, 22, widely)" & @CRLF & _ "( 23, 31, regarded )" & @CRLF & _ "(32, 34, as )" & @CRLF & _ "(35, 36, a) " & @CRLF & _ "(37, 43, solved ) " & @CRLF & _ "(44, 51, problem)" & @CRLF & _ "(52, 55, due)" & @CRLF & _ "(56, 58, to)" & @CRLF & _ "(59, 62, the)" & @CRLF & _ "(63, 67, high)" & @CRLF & _ "(68, 76, accuracy)" & @CRLF & _ "(77, 81, that)" & @CRLF & _ "(82, 91, rulebased)" & @CRLF & _ "(92, 102, tokenizers)" & @CRLF & _ "(103, 110, achieve)" & @CRLF & _ "(110, 111, .)" & @CRLF & _ "" & @CRLF & _ "(0, 3, But)" & @CRLF & _ "(4, 14, rule-based)" & @CRLF & _ "(15, 25, tokenizers)" & @CRLF & _ "(26, 29, are)" & @CRLF & _ "(30, 34, hard)" & @CRLF & _ "(35, 37, to)" & @CRLF & _ "(38, 46, maintain)" & @CRLF & _ "(47, 50, and)" & @CRLF & _ "(51, 56, their)" & @CRLF & _ "(57, 62, rules)" & @CRLF & _ "(63, 71, language)" & @CRLF & _ "(72, 80, specific)" & @CRLF & _ "(80, 81, .)" & @CRLF & _ "" & @CRLF & _ "(0, 2, We)" & @CRLF & _ "(3, 7, show)" & @CRLF & _ "(8, 12, that)" & @CRLF & _ "(13, 17, high)" & @CRLF & _ "(18, 26, accuracy)" & @CRLF & _ "(27, 31, word)" & @CRLF & _ "(32, 35, and)" & @CRLF & _ "(36, 44, sentence)" & @CRLF & _ "(45, 57, segmentation)" & @CRLF & _ "(58, 61, can)" & @CRLF & _ "(62, 64, be)" & @CRLF & _ "(65, 73, achieved)" & @CRLF & _ "(74, 76, by)" & @CRLF & _ "(77, 82, using)" & @CRLF & _ "(83, 93, supervised)" & @CRLF & _ "(94, 102, sequence)" & @CRLF & _ "(103, 111, labeling)" & @CRLF & _ "(112, 114, on)" & @CRLF & _ "(115, 118, the)" & @CRLF & _ "(119, 128, character)" & @CRLF & _ "(129, 134, level)" & @CRLF & _ "(135, 143, combined)" & @CRLF & _ "(144, 148, with)" & @CRLF & _ "(149, 161, unsupervised)" & @CRLF & _ "(162, 169, feature)" & @CRLF & _ "(170, 178, learning)" & @CRLF & _ "(178, 179, .)" & @CRLF & _ "" & @CRLF & _ "(0, 2, We)" & @CRLF & _ "(3, 12, evaluated)" & @CRLF & _ "(13, 16, our)" & @CRLF & _ "(17, 23, method)" & @CRLF & _ "(24, 26, on)" & @CRLF & _ "(27, 32, three)" & @CRLF & _ "(33, 42, languages)" & @CRLF & _ "(43, 46, and)" & @CRLF & _ "(47, 55, obtained)" & @CRLF & _ "(56, 61, error)" & @CRLF & _ "(62, 67, rates)" & @CRLF & _ "(68, 70, of)" & @CRLF & _ "(71, 75, 0.27)" & @CRLF & _ "(76, 77, ‰)" & @CRLF & _ "(78, 79, ()" & @CRLF & _ "(79, 86, English)" & @CRLF & _ "(86, 87, ))" & @CRLF & _ "(87, 88, ,)" & @CRLF & _ "(89, 93, 0.35)" & @CRLF & _ "(94, 95, ‰)" & @CRLF & _ "(96, 97, ( )" & @CRLF & _ "(97, 102, Dutch)" & @CRLF & _ "(102, 103, ) )" & @CRLF & _ "(104, 107, and)" & @CRLF & _ "(108, 112, 0.76)" & @CRLF & _ "(113, 114, ‰)" & @CRLF & _ "(115, 116, ()" & @CRLF & _ "(116, 123, Italian)" & @CRLF & _ "(123, 124, ))" & @CRLF & _ "(125, 128, for)" & @CRLF & _ "(129, 132, our)" & @CRLF & _ "(133, 137, best)" & @CRLF & _ "(138, 144, models)" & @CRLF & _ "(144, 145, .)" 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