github.com/ice-blockchain/go/src@v0.0.0-20240403114104-1564d284e521/regexp/testdata/nullsubexpr.dat (about)

     1  NOTE	null subexpression matches : 2002-06-06
     2  
     3  E	(a*)*		a		(0,1)(0,1)
     4  E	SAME		x		(0,0)(0,0)
     5  E	SAME		aaaaaa		(0,6)(0,6)
     6  E	SAME		aaaaaax		(0,6)(0,6)
     7  E	(a*)+		a		(0,1)(0,1)
     8  E	SAME		x		(0,0)(0,0)
     9  E	SAME		aaaaaa		(0,6)(0,6)
    10  E	SAME		aaaaaax		(0,6)(0,6)
    11  E	(a+)*		a		(0,1)(0,1)
    12  E	SAME		x		(0,0)
    13  E	SAME		aaaaaa		(0,6)(0,6)
    14  E	SAME		aaaaaax		(0,6)(0,6)
    15  E	(a+)+		a		(0,1)(0,1)
    16  E	SAME		x		NOMATCH
    17  E	SAME		aaaaaa		(0,6)(0,6)
    18  E	SAME		aaaaaax		(0,6)(0,6)
    19  
    20  E	([a]*)*		a		(0,1)(0,1)
    21  E	SAME		x		(0,0)(0,0)
    22  E	SAME		aaaaaa		(0,6)(0,6)
    23  E	SAME		aaaaaax		(0,6)(0,6)
    24  E	([a]*)+		a		(0,1)(0,1)
    25  E	SAME		x		(0,0)(0,0)
    26  E	SAME		aaaaaa		(0,6)(0,6)
    27  E	SAME		aaaaaax		(0,6)(0,6)
    28  E	([^b]*)*	a		(0,1)(0,1)
    29  E	SAME		b		(0,0)(0,0)
    30  E	SAME		aaaaaa		(0,6)(0,6)
    31  E	SAME		aaaaaab		(0,6)(0,6)
    32  E	([ab]*)*	a		(0,1)(0,1)
    33  E	SAME		aaaaaa		(0,6)(0,6)
    34  E	SAME		ababab		(0,6)(0,6)
    35  E	SAME		bababa		(0,6)(0,6)
    36  E	SAME		b		(0,1)(0,1)
    37  E	SAME		bbbbbb		(0,6)(0,6)
    38  E	SAME		aaaabcde	(0,5)(0,5)
    39  E	([^a]*)*	b		(0,1)(0,1)
    40  E	SAME		bbbbbb		(0,6)(0,6)
    41  E	SAME		aaaaaa		(0,0)(0,0)
    42  E	([^ab]*)*	ccccxx		(0,6)(0,6)
    43  E	SAME		ababab		(0,0)(0,0)
    44  
    45  E	((z)+|a)*	zabcde		(0,2)(1,2)
    46  
    47  #{E	a+?		aaaaaa		(0,1)	no *? +? minimal match ops
    48  #E	(a)		aaa		(0,1)(0,1)
    49  #E	(a*?)		aaa		(0,0)(0,0)
    50  #E	(a)*?		aaa		(0,0)
    51  #E	(a*?)*?		aaa		(0,0)
    52  #}
    53  
    54  B	\(a*\)*\(x\)		x	(0,1)(0,0)(0,1)
    55  B	\(a*\)*\(x\)		ax	(0,2)(0,1)(1,2)
    56  B	\(a*\)*\(x\)		axa	(0,2)(0,1)(1,2)
    57  B	\(a*\)*\(x\)\(\1\)	x	(0,1)(0,0)(0,1)(1,1)
    58  B	\(a*\)*\(x\)\(\1\)	ax	(0,2)(1,1)(1,2)(2,2)
    59  B	\(a*\)*\(x\)\(\1\)	axa	(0,3)(0,1)(1,2)(2,3)
    60  B	\(a*\)*\(x\)\(\1\)\(x\)	axax	(0,4)(0,1)(1,2)(2,3)(3,4)
    61  B	\(a*\)*\(x\)\(\1\)\(x\)	axxa	(0,3)(1,1)(1,2)(2,2)(2,3)
    62  
    63  E	(a*)*(x)		x	(0,1)(0,0)(0,1)
    64  E	(a*)*(x)		ax	(0,2)(0,1)(1,2)
    65  E	(a*)*(x)		axa	(0,2)(0,1)(1,2)
    66  
    67  E	(a*)+(x)		x	(0,1)(0,0)(0,1)
    68  E	(a*)+(x)		ax	(0,2)(0,1)(1,2)
    69  E	(a*)+(x)		axa	(0,2)(0,1)(1,2)
    70  
    71  E	(a*){2}(x)		x	(0,1)(0,0)(0,1)
    72  E	(a*){2}(x)		ax	(0,2)(1,1)(1,2)
    73  E	(a*){2}(x)		axa	(0,2)(1,1)(1,2)