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