: perl group extension tests 2001-06-18

E (?(0)a|b) a ESUBREG

Ex SAME a (0,1)

E SAME b ESUBREG

Ex SAME b NOMATCH

K ~((0)a|b) a (0,1)

K SAME b NOMATCH

K SAME ~((0)a|b) (5,6)

E (?(1)a|b) a ESUBREG

Ex SAME a NOMATCH

E SAME b ESUBREG

Ex SAME b (0,1)

K ~((1)a|b) a NOMATCH

K SAME b (0,1)

K SAME ~((1)a|b) (7,8)

E (a)(?(1)a|b) aa (0,2)(0,1)

E SAME ab NOMATCH

E SAME ba NOMATCH

E SAME bb NOMATCH

K @(a)~((1)a|b) aa (0,2)(0,1)

K SAME ab NOMATCH

K SAME ba NOMATCH

K SAME bb NOMATCH

E ((a)|(b))(?(2)a|b) aa (0,2)(0,1)(0,1)

E SAME ab NOMATCH

E SAME ba NOMATCH

E SAME bb (0,2)(0,1)(?,?)(0,1)

E ((a)|(b))(?(3)a|b) aa NOMATCH

E SAME ab (0,2)(0,1)(0,1)

E SAME ba (0,2)(0,1)(?,?)(0,1)

E SAME bb NOMATCH

Bi ^g.*style$ Grep-Style (0,10)

Ei ^g.*style$ Grep-Style (0,10)

E (?+i)^e.*style$ Egrep-Style (0,11)

K ~(i)k*style Ksh-Style (0,9)

K ~(Bi)grep-style Grep-Style (0,10)

K ~(Bi)grep-style$ Grep-Style (0,10)

K ~(Bi)^grep-style$ Grep-Style (0,10)

K ~(Bi)g.*style$ Grep-Style (0,10)

K ~(Bi)^g.*style$ Grep-Style (0,10)

K ~(Ei)^e.*style$ Egrep-Style (0,11)