Regular Expressions 101

1st Alternative^[^?]*[PG]$

^start of line

Negated Character Class[^?]*

*matches any number of characters outside the set below:

?the literal ? (63₁₀ / 77₈ / 3F₁₆)

Character Class[PG]

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

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

$end of line

2nd Alternative[?$].*\$$

Character Class[?$]

?the literal ? (63₁₀ / 77₈ / 3F₁₆)

$the literal $ (36₁₀ / 44₈ / 24₁₆)

.*any character (except for line terminators), repeated any number of times

\$the literal $ (36₁₀ / 44₈ / 24₁₆)

$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

^[^?]*[PG]$|[?$].*\$$

New

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

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

Regular Expression

Extraction