Regular Expressions 101

Pro

1st AlternativeR(\[-?\d+\])C(\[-?\d+\])

Rthe literal R (82₁₀ / 122₈ / 52₁₆) (case sensitive)

Group 1(\[-?\d+\])

\[the literal [ (91₁₀ / 133₈ / 5B₁₆)

-?optionally matches the literal - (45₁₀ / 55₈ / 2D₁₆)

\d+a digit, repeated at least once

\]the literal ] (93₁₀ / 135₈ / 5D₁₆)

Cthe literal C (67₁₀ / 103₈ / 43₁₆) (case sensitive)

Group 2(\[-?\d+\])

\[the literal [ (91₁₀ / 133₈ / 5B₁₆)

-?optionally matches the literal - (45₁₀ / 55₈ / 2D₁₆)

\d+a digit, repeated at least once

\]the literal ] (93₁₀ / 135₈ / 5D₁₆)

2nd AlternativeR(\[-?\d+\])C

Rthe literal R (82₁₀ / 122₈ / 52₁₆) (case sensitive)

Group 3(\[-?\d+\])

\[the literal [ (91₁₀ / 133₈ / 5B₁₆)

-?optionally matches the literal - (45₁₀ / 55₈ / 2D₁₆)

\d+a digit, repeated at least once

\]the literal ] (93₁₀ / 135₈ / 5D₁₆)

Cthe literal C (67₁₀ / 103₈ / 43₁₆) (case sensitive)

3rd AlternativeRC(\[-?\d+\])

RCthe literal text RC (case sensitive)

Group 4(\[-?\d+\])

\[the literal [ (91₁₀ / 133₈ / 5B₁₆)

-?optionally matches the literal - (45₁₀ / 55₈ / 2D₁₆)

\d+a digit, repeated at least once

\]the literal ] (93₁₀ / 135₈ / 5D₁₆)

Global pattern flags

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

Detailed match information will be displayed here automatically.

26 tokens

Regular Expression

R(\[-?\d+\])C(\[-?\d+\])|R(\[-?\d+\])C|RC(\[-?\d+\])

New

R
C
RC
RC[1]
RC[-1]
R[1]C
R[-1]C
R[1]C[1]
R[-1]C[1]
R[1]C[-1]
R[-1]C[-1]
R[foo]
C[foo]
R[foo]C
RC[foo]
R[foo]C[foo]
RC[0]
RC[0]
R[0]C
R[0]C
R[0]C[0]
R[0]C[0]
R[0]C[0]
R[0]C[0]
RC[99]
RC[-99]
R[99]C
R[-99]C
R[99]C[99]
R[-99]C[-99]
R[99]C[-99]
R[-99]C[99]