xyzzy
xyzzy
xyzz
xyzzyy
xxyzzy
XYZZY
xyzzy
\i
j
℮
a??
\P{IsGothic}
𐌰
𐌿
X
𐌯
𠌰
𰌰
𐍐
\p{IsGothic}
𐌰
𐌿
X
𐌯
𠌰
𰌰
𐍐
$
$
a|b
[x-y]
[\p{Nd}-[a-z]]
[\p{Nd}-[\p{IsThai}]]
\p{IsThai}
\i\c*
~!@#$%\^&\*\(\)_\+`\-=\{\}\[\]\|\\:;"',\.<>/\?
~!@#$%^&*()_+`-={}[]|\:;"',.<>/?
[f&&g]
f
&
g
^
^
\
?
*
+
)
(
[
]
-
-
|
|
.
.
..
𐌰
[^]
[]
[]]
[[]
[\]
[^^]
x
^
[?+*(){}|.]
?
+
*
(
)
{
}
|
.
x
x
x{2,1}
x{1,1}
x
x{1, 2}
x{ 2}
x{2 }
x{-0,1}
x{+2}
x{2147483648}
x
x{2147483649,2147483648}
x{0,2147483648}
x
[a-z-[c-y]]
a
b
z
c
y
d
[abc-[a-a]]
b
c
a
d
[a-[a]-[a]]
\pL
\p{IsHighSurrogates}\p{IsLowSurrogates}
𐌰
a[𐌰-[𐌰]]*b
ab
a𐌰b