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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
Processing...

Test String

Code Generator

Language

Generated Code

package main import ( "regexp" "fmt" ) func main() { var re = regexp.MustCompile(`(?m)(?P<time>\d\d:\d\d:\d\d.\d{3})\s(?P<date>\d\d/\d\d/\d\d)\s(?P<sno>\d{10})\s(?P<status>\w{1,2}).*?-\s*(?P<bcode>No_barcode|\W{20})(?:\s+(?P<type>\w{3})(?:.*?(?P<pr>Pt.*?\d*[.]?\d*\s[a-z]+)(?:\s{1,3}(?P<fl>FL.*?\d*[.]?\d*\s[a-z]+))?)?)?`) var str = `95031B2 R C01 N1 P93 R-- 12:39:18.540 08/05/20 0000002802 R - No_barcode FLC F LR 7.673353 sccm Pt 25.288202 psig FL 536.651917 sccm EDC 0.000000 sccm PQ 7.668324 sccm QF 536.289246 sccm QP 25.287605 psig LLQ -0.109524 sccm HLQ 4.440174 sccm CLF 1.429953 sccm MF 0.000000 sccm LF 100.000015 sccm MQF 0.000000 sccm LQF 100.000015 sccm FPR 25.290846 psig 5102060 R C01 N1 P93 R-- 12:38:52.140 08/05/20 0000002801 FO - No_barcode ` 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/