Paul Eggert wrote:
Paolo Bonzini <[EMAIL PROTECTED]> writes:
Yes, it is undefined
I don't see why 's&foo&\&&' is undefined. The POSIX standard says:
Any character other than backslash or <newline> can be used instead
of a slash to delimit the BRE and the replacement. Within the BRE
and the replacement, the BRE delimiter itself can be used as a
literal character if it is preceded by a backslash.
Therefore, preceding & by a backslash makes it a "literal character",
i.e., a character that is not special. Where's the ambiguity?
I'm interested in how other seds behave for say
s{a\{1,2\}{b{
since the current way GNU sed works for the RHS depends on a change in
the interpretation of the RHS.
Paolo
