Regular Expressions 101

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  • 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

/
/
gm

Test String

Substitution

Processing...

Code Generator

Generated Code

#include <MsgBoxConstants.au3> ; to declare the Constants of MsgBox Local $sRegex = "(?m)\R(?!Module Statements,)" Local $sString = "Module Statements,Module,Collection of primitive building blocks and instances of other modules that comprise a network and or instrument. Two types handoff or internal,A redefinition of a module_def shall overwrite a previously defined module_def having the same module_name within the same nameSpace_name.,6.4.5.a)," & @CRLF & _ "Module Statements,,,A module_def shall have at least one port_def unless it is the top module and contains an AccessLink statement,6.4.5.b)," & @CRLF & _ "Module Statements,,,"The following objects shall have unique names within a module_def:" & @CRLF & _ "port_name" & @CRLF & _ "? scanRegister_name" & @CRLF & _ "? dataRegister_name" & @CRLF & _ "? one_hot_scan_group_name" & @CRLF & _ "? scanMux_name" & @CRLF & _ "? dataMux_name" & @CRLF & _ "? clockMux_name" & @CRLF & _ "? one_hot_data_group_name" & @CRLF & _ "? logicSignal_name" & @CRLF & _ "? alias_name",6.4.5.c)," & @CRLF & _ "Module Statements,,,"The following objects shall have unique names within a module_def:" & @CRLF & _ "instance_name" & @CRLF & _ "? scanInterface_name",6.4.5.d)," & @CRLF & _ "Module Statements,,,"An inputPort_name shall be one of the following" & @CRLF & _ "scanInPort_name" & @CRLF & _ "? shiftEnPort_name" & @CRLF & _ "? captureEnPort_name" & @CRLF & _ "? updateEnPort_name" & @CRLF & _ "? dataInPort_name" & @CRLF & _ "? selectPort_name" & @CRLF & _ "? resetPort_name" & @CRLF & _ "? tmsPort_name" & @CRLF & _ "? tckPort_name" & @CRLF & _ "? clockPort_name" & @CRLF & _ "? trstPort_name" & @CRLF & _ "? addressPort_name" & @CRLF & _ "? writeEnPort_name" & @CRLF & _ "? readEnPort_name" & @CRLF & _ "",6.4.5.e)," & @CRLF & _ "Module Statements,,,"An outputPort_name shall be one of the following:" & @CRLF & _ "? scanOutPort_name" & @CRLF & _ "? dataOutPort_name" & @CRLF & _ "? toShiftEnPort_name" & @CRLF & _ "? toUpdateEnPort_name" & @CRLF & _ "? toCaptureEnPort_name" & @CRLF & _ "? toSelectPort_name" & @CRLF & _ "? toResetPort_name" & @CRLF & _ "? toTckPort_name" & @CRLF & _ "? toTmsPort_name" & @CRLF & _ "? toClockPort_name" & @CRLF & _ "? toTrstPort_name" & @CRLF & _ "? toIRSelectPort_name",6.4.5.f)," & @CRLF & _ "Module Statements,,,Multiple inputPort_name port functions that are of type vector_id may share the same SCALAR_ID as long as the indexes form a contiguous range and every index range is of the same either ascending or descending type.,6.4.5.g)," & @CRLF & _ "Module Statements,,,Multiple outputPort_name port functions that are of type vector_id may share the same SCALAR_ID as long as the indexes form a contiguous range and every index range is of the same either ascending or descending type.,6.4.5.h)," Local $sSubst = " " Local $sResult = StringRegExpReplace($sString, $sRegex, $sSubst) MsgBox($MB_SYSTEMMODAL, "Result", $sResult)

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