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

/
/

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 = "Instrument Method\s*[=:-]\s*(?<dm>.*)" Local $sString = "This data was acquired in Method&Run Control." & @CRLF & _ "The MSD parameters were saved in the msdiag register file." & @CRLF & _ "This msparms.txt file was built using the values from the msdiag register." & @CRLF & _ "Some parameters normally reported under MSData acquisition in Tune " & @CRLF & _ "may be missing from this msparms.txt file. You may be able to read these " & @CRLF & _ "values from Data Analysis. These items are marked with an asterisk (*)." & @CRLF & _ " " & @CRLF & _ " " & @CRLF & _ " " & @CRLF & _ "File : C:\HPCHEM\1\DATA\FIA.D" & @CRLF & _ "Operator : Apps Chemist" & @CRLF & _ "Date acquired : Wed Apr 09 17:50:26 1997" & @CRLF & _ "Instrument Method : Appsprite2" & @CRLF & _ " " & @CRLF & _ " " & @CRLF & _ "Sample information" & @CRLF & _ "----------------------------------" & @CRLF & _ "Sample name : 50 ng caffeine" & @CRLF & _ "Misc info : 50 ng Caffeine run in condensed mode varying fragmentor" & @CRLF & _ " " & @CRLF & _ " " & @CRLF & _ "MS parameters" & @CRLF & _ "----------------------------------" & @CRLF & _ "Tune File : C:\HPCHEM\1\1946TUNE\atunes.tun" & @CRLF & _ "Skim1 : Not Applicable" & @CRLF & _ "Skim2 : 8.0 V " & @CRLF & _ "Ion Energy : 5.0 V " & @CRLF & _ "Lens1 : 1.4 V " & @CRLF & _ "Lens2 : 27 V " & @CRLF & _ "Iris : 350 V " & @CRLF & _ "HED : 10000 V " & @CRLF & _ "Width Gain : -70 " & @CRLF & _ "Width Offset : Variable " & @CRLF & _ " Mass : Value " & @CRLF & _ " --------------------------" & @CRLF & _ " 118.10 : -11 " & @CRLF & _ " 622.03 : -14 " & @CRLF & _ " 922.01 : -2 " & @CRLF & _ " 1521.97 : -8 " & @CRLF & _ " 2121.93 : -13 " & @CRLF & _ " 2721.89 : -12 " & @CRLF & _ " --------------------------" & @CRLF & _ "Mass Gain : 4.40 " & @CRLF & _ "Mass Offset : Variable " & @CRLF & _ " Mass : Value " & @CRLF & _ " --------------------------" & @CRLF & _ " 118.10 : 0 " & @CRLF & _ " 622.03 : 0 " & @CRLF & _ " 922.01 : 0 " & @CRLF & _ " 1521.97 : 0 " & @CRLF & _ " 2121.93 : 0 " & @CRLF & _ " 2721.89 : 0 " & @CRLF & _ " --------------------------" & @CRLF & _ "Quad DC : 0.00 V " & @CRLF & _ "Octopole Peak : 300 V " & @CRLF & _ "Octopole Knee : 307 Da " & @CRLF & _ "Mass Filter : Gaussian " & @CRLF & _ "Mass Filter Width : 0.30 Da " & @CRLF & _ "" Local $aArray = StringRegExp($sString, $sRegex, $STR_REGEXPARRAYFULLMATCH) ; Present the entire match result _ArrayDisplay($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