Regular Expressions 101

Pro

^start of line

Character Class[A-Z]{3}

{3}matches exactly 3 characters from the set below:

A-Zone character from A (65₁₀) to Z (90₁₀) (case sensitive)

Group 1(([1-9]{4})|([1-9]{1}[A-Z{1}][1-9]{2}))

1st Alternative([1-9]{4})

Group 2([1-9]{4})

Character Class[1-9]{4}

{4}matches exactly 4 characters from the set below:

1-9one character from 1 (49₁₀) to 9 (57₁₀)

2nd Alternative([1-9]{1}[A-Z{1}][1-9]{2})

Group 3([1-9]{1}[A-Z{1}][1-9]{2})

Character Class[1-9]{1}

{1}matches one character from the set below:

1-9one character from 1 (49₁₀) to 9 (57₁₀)

Character Class[A-Z{1}]

A-Zone character from A (65₁₀) to Z (90₁₀) (case sensitive)

{the literal { (123₁₀ / 173₈ / 7B₁₆)

1the literal 1 (49₁₀ / 61₈ / 31₁₆)

}the literal } (125₁₀ / 175₈ / 7D₁₆)

Character Class[1-9]{2}

{2}matches exactly 2 characters from the set below:

1-9one character from 1 (49₁₀) to 9 (57₁₀)

$end of line

Global pattern flags

g modifier: global. Finds all matches instead of stopping after the first

m modifier: multiline. Causes ^ and $ to match the start and end of each line, not only the start and end of the string

Detailed match information will be displayed here automatically.

26 tokens

^[A-Z]{3}(([1-9]{4})|([1-9]{1}[A-Z{1}][1-9]{2}))$

ABC1D23
ABC1Z23
ABC1ZA3
AB11Z23
ABC·1234
ABC1234
asasdasdads
1231321321
111ab12
ABC1423
ABC1423ABC
ABC
1234
12345
123456
12

ABC1D23
ABC1Z23
ABC1ZA3
AB11Z23
ABC·1234
ABC1234
asasdasdads
1231321321
111ab12
ABC1423
ABC1423ABC
ABC
1234
12345
123456
12