Closed m-ender closed 8 years ago
A $* at the beginning of the substitution could take an implicit $0 to the left of it, and a $* at the end of the a substitution could default to some character, maybe 1.
$*
$0
1
A
$*at the beginning of the substitution could take an implicit$0to the left of it, and a$*at the end of the a substitution could default to some character, maybe1.