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

/
/
gm

Test String

Code Generator

Language

Generated Code

package main import ( "regexp" "fmt" ) func main() { var re = regexp.MustCompile(`(?m)"(?<VoNo>[^"]*)";"(?<VoDt>[^"]*)";"(?<ValDt>[^"]*)";"(?<VoTp>[^"]*)";"(?<Txt>[^"]*)";"(?<DbAcNo>[^"]*)";"(?<DbTrnCl>[^"]*)";"(?<DbTxCd>[^"]*)";"(?<CrAcNo>[^"]*)";"(?<CrTrnCl>[^"]*)";"(?<CrTxCd>[^"]*)";"(?<Am>[^"]*)";"(?<InvoNo>[^"]*)";"(?<DueDt>[^"]*)";"(?<VatAm>[^"]*)";"(?<R1>[^"]*)";"(?<R2>[^"]*)";"(?<R7>[^"]*)";"(?<CID>[^"]*)";"(?<Txt2>[^"]*)";"(?<AGRef>[^"]*)";;`) var str = `@Actor (=CustNo,SupNo,Nm,Ad1,Ad2,Ad3,PNo,PArea,Phone,Fax,MailAd,BsNo,BGiro,Ctry,Lang,Cur,CPmtTrm,SPmtTrm) "10458";"0";"Vesterlandet GÂrd / D. Hansen";"Vesterlandet 226";"";"";"8407";"Sortland";"";"";"vesterlandetgaard@gmail.com";"926967878";"";"47";"47";"";"15";"15" @IMPORT_METHOD(3) @WaBnd (ValDt, SrcTp, Descr) "20240326" "12" "Quick3 Import" @WaVo (VoNo,VoDt,ValDt,VoTp,Txt,DbAcNo,DbTrnCl,DbTxCd,CrAcNo,CrTrnCl,CrTxCd,Am,InvoNo,DueDt,VatAm,R1,R2,R7,CID,Txt2,AGRef) "100489";"20240326";"20240326";"11";"Utg.faktura";"10458";"0";"0";"0";"0";"0";"33818.00";"100489";"20240405";"";"";"";"";"001045801004890";"";"";; "100489";"20240326";"20240326";"11";"Utg.faktura";"0";"0";"0";"7740";"0";"0";"0.50";"";"";"";"";"";"";"";"";"";; "100489";"20240326";"20240326";"11";"Utg.faktura";"0";"0";"0";"3000";"0";"3";"30937.50";"";"";"";"1";"";"";"";"";"";; "100489";"20240326";"20240326";"11";"Utg.faktura";"0";"0";"0";"3001";"0";"3";"2880.00";"";"";"";"1";"";"";"";"";"";;` for i, match := range re.FindAllString(str, -1) { fmt.Println(match, "found at index", i) } }

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 Golang, please visit: https://golang.org/pkg/regexp/