regex101: PCRE (Legacy) Match Workspace

1st Alternative^.{3,23}[.-~]..\$$

^start of line

.{3,23}any character (except for line terminators), repeated between 3 and 23 times

Character Class[.-~]

.-~one character from . (46₁₀) to ~ (126₁₀)

.any character (except for line terminators)

\$the literal $ (36₁₀ / 44₈ / 24₁₆)

$end of line

2nd Alternative[^P?][PG]$

Negated Character Class[^P?]

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

?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

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

25 tokens

Regular Expression

^.{3,23}[.-~]..\$$|[^P?][PG]$

New

The next answer has to match the following strings:

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

And fail on these strings:

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

Regular Expressions 101

Regular Expression

Extraction