: x/open examples 2002-04-17

B \(a\)*\1 a NOMATCH

E ([a-z]*)[a-z]* abcdef (0,6)(0,6)

B \(x\{0,1\}\)y\1z\{0,1\} xxxxyz (4,6)(4,4)

B \(x\{0,1\}\)*y\1z\{0,1\} xxxxyz (0,6)(4,4)

B \(ac*\)c*d[ac]*\1 acdacaaa (0,8)(0,1)

E (.*).* abcdef (0,6)(0,6)

E (a*) b (0,0)(0,0)

E (a*)* b (0,0)(0,0)

E (a*)+ b (0,0)(0,0)

E (a*)(b) b (0,1)(0,0)(0,1)

E (a*)*(b) b (0,1)(0,0)(0,1)

E (a*)+(b) b (0,1)(0,0)(0,1)

E (a.*b)(a.*b) accbaccccb (0,10)(0,4)(4,10)