Regular Expressions 101

Group 1([+\-*^]\s*[+\-*^]|[xX]\s*[xX])

1st Alternative[+\-*^]\s*[+\-*^]

Character Class[+\-*^]

+the literal + (43₁₀ / 53₈ / 2B₁₆)

\-the literal - (45₁₀ / 55₈ / 2D₁₆)

*the literal * (42₁₀ / 52₈ / 2A₁₆)

^the literal ^ (94₁₀ / 136₈ / 5E₁₆)

\s*any whitespace character, repeated any number of times

Character Class[+\-*^]

+the literal + (43₁₀ / 53₈ / 2B₁₆)

\-the literal - (45₁₀ / 55₈ / 2D₁₆)

*the literal * (42₁₀ / 52₈ / 2A₁₆)

^the literal ^ (94₁₀ / 136₈ / 5E₁₆)

2nd Alternative[xX]\s*[xX]

Character Class[xX]

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

Xthe literal X (88₁₀ / 130₈ / 58₁₆) (case sensitive)

\s*any whitespace character, repeated any number of times

Character Class[xX]

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

Xthe literal X (88₁₀ / 130₈ / 58₁₆) (case sensitive)

Global pattern flags

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

Detailed match information will be displayed here automatically.

Search reference

Regular Expression

([+\-*^]\s*[+\-*^]|[xX]\s*[xX])

5 + 4 * X + X^2 - 2 + X^2