Regular Expressions 101

-the literal - (45₁₀ / 55₈ / 2D₁₆)

Character Class[0-9]{3}

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

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

xthe literal x (120₁₀ / 170₈ / 78₁₆) (case sensitive)

Character Class[0-9]{4}

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

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

\ban ASCII word boundary

Detailed match information will be displayed here automatically.

Search reference

Regular Expression

-[0-9]{3}x[0-9]{4}\b

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