1*57718be8SEnji Cooper# complexities 2*57718be8SEnji Coopera(((b)))c - abc abc 3*57718be8SEnji Coopera(b|(c))d - abd abd 4*57718be8SEnji Coopera(b*|c)d - abbd abbd 5*57718be8SEnji Cooper# just gotta have one DFA-buster, of course 6*57718be8SEnji Coopera[ab]{20} - aaaaabaaaabaaaabaaaab aaaaabaaaabaaaabaaaab 7*57718be8SEnji Cooper# and an inline expansion in case somebody gets tricky 8*57718be8SEnji Coopera[ab][ab][ab][ab][ab][ab][ab][ab][ab][ab][ab][ab][ab][ab][ab][ab][ab][ab][ab][ab] - aaaaabaaaabaaaabaaaab aaaaabaaaabaaaabaaaab 9*57718be8SEnji Cooper# and in case somebody just slips in an NFA... 10*57718be8SEnji Coopera[ab][ab][ab][ab][ab][ab][ab][ab][ab][ab][ab][ab][ab][ab][ab][ab][ab][ab][ab][ab](wee|week)(knights|night) - aaaaabaaaabaaaabaaaabweeknights aaaaabaaaabaaaabaaaabweeknights 11*57718be8SEnji Cooper# fish for anomalies as the number of states passes 32 12*57718be8SEnji Cooper12345678901234567890123456789 - a12345678901234567890123456789b 12345678901234567890123456789 13*57718be8SEnji Cooper123456789012345678901234567890 - a123456789012345678901234567890b 123456789012345678901234567890 14*57718be8SEnji Cooper1234567890123456789012345678901 - a1234567890123456789012345678901b 1234567890123456789012345678901 15*57718be8SEnji Cooper12345678901234567890123456789012 - a12345678901234567890123456789012b 12345678901234567890123456789012 16*57718be8SEnji Cooper123456789012345678901234567890123 - a123456789012345678901234567890123b 123456789012345678901234567890123 17*57718be8SEnji Cooper# and one really big one, beyond any plausible word width 18*57718be8SEnji Cooper1234567890123456789012345678901234567890123456789012345678901234567890 - a1234567890123456789012345678901234567890123456789012345678901234567890b 1234567890123456789012345678901234567890123456789012345678901234567890 19*57718be8SEnji Cooper# fish for problems as brackets go past 8 20*57718be8SEnji Cooper[ab][cd][ef][gh][ij][kl][mn] - xacegikmoq acegikm 21*57718be8SEnji Cooper[ab][cd][ef][gh][ij][kl][mn][op] - xacegikmoq acegikmo 22*57718be8SEnji Cooper[ab][cd][ef][gh][ij][kl][mn][op][qr] - xacegikmoqy acegikmoq 23*57718be8SEnji Cooper[ab][cd][ef][gh][ij][kl][mn][op][q] - xacegikmoqy acegikmoq 24