Regular Expressions 101

1st Alternative([.$?]|G\])\$$

Group 1([.$?]|G\])

1st Alternative[.$?]

Character Class[.$?]

.the literal . (46₁₀ / 56₈ / 2E₁₆)

$the literal $ (36₁₀ / 44₈ / 24₁₆)

?the literal ? (63₁₀ / 77₈ / 3F₁₆)

2nd AlternativeG\]

Gthe literal G (71₁₀ / 107₈ / 47₁₆) (case sensitive)

\]the literal ] (93₁₀ / 135₈ / 5D₁₆)

\$the literal $ (36₁₀ / 44₈ / 24₁₆)

$end of line

2nd Alternative^\^?P

^start of line

\^?optionally matches the literal ^ (94₁₀ / 136₈ / 5E₁₆)

Pthe literal P (80₁₀ / 120₈ / 50₁₆) (case sensitive)

3rd Alternative\]P$

\]the literal ] (93₁₀ / 135₈ / 5D₁₆)

Pthe literal P (80₁₀ / 120₈ / 50₁₆) (case sensitive)

$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.

Search reference

Regular Expression

([.$?]|G\])\$$|^\^?P|\]P$

New

PPCG
^P
^[P^]P
[^?][PG]$
(?<!\\..)(?!]).$
^[\w^]*$|!|]P|G]\$$
!|[^?]P(CG|G..)?$
[^])]\$|^\^?P|P.\].$

[PPCG]
^[P\^]
[^\]]$
^\^?P
[^?][PG]$|<|PG
^[^\\|]*(\\\\)+[^\\|]*[^\]]$
^(.{,4}|.{9}|.{16,19}|.{5}P)$