Regular Expressions 101

^start of line

Negated Character Class[^0-3]

0-3one character from 0 (48₁₀) to 3 (51₁₀)

Character Class[0-9]{7}

{7}matches exactly 7 characters from the set below:

0-9one character from 0 (48₁₀) to 9 (57₁₀)

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.

25 tokens

Regular Expression

^[^0-3][0-9]{7}

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