Re: [9front] sed: fix moving '^' match

[ieliedonge@wilsonb.com]

> i disagree, i can interprete sed(1) to allow exactly this feature

You are way more creative than most then. I tend to think that lines only have
a single beginning and that `echo "blah"` writes a single line.

From regexp(6):

    A ^ matches the beginning of a line; $ matches the end of the line.

From sed(1):

    g     Global. Substitute for all non–overlapping instances of the regular expression rather than just the first one.


FWIW, the current 9front behavior is also inconsistent with Unix V7's sed,
which both BSD and GNU implementations are, perhaps ironically, actually more
consistent than us in this particular case:

    $ echo aabbccd | sed 's/^..//g'
    bbccd