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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)^TEXT\h([A-Z0-9]{14})`) var str = `Material B7E671143D244B ==================================== TEXT 2F3139D816C34D 1 TEXT B6A968EF2505A2 1 TEXT 35206697A04F91 1 TEXT EB485AF490D83D 1 TEXT 0DAB42294BD9B3 1 TEXT 3D6525BEE360E1 0 Material D6906B886B06E3 ==================================== TEXT 0CCECCCCFB62AE 1 TEXT 1E14CB29AB43F0 1 TEXT FB7F0DCE9B5950 1 Material 431831490FD5C9 ==================================== TEXT 9D77B6474696D8 1 TEXT D04DEE5DF130A4 1 TEXT B6A968EF2505A2 1 TEXT 8C37245A4F0F81 1 TEXT A39FAFFC5ABC06 1 TEXT D24199644F2EE6 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/