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Re: 2.62 AT_SETUP limitations

From: Eric Blake
Subject: Re: 2.62 AT_SETUP limitations
Date: Thu, 24 Apr 2008 06:41:28 -0600
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According to Joel E. Denny on 4/24/2008 12:31 AM:
| This message from Eric was never delivered to me, but I stumbled upon it
| in the bug-autoconf archives:
|   http://lists.gnu.org/archive/html/bug-autoconf/2008-04/msg00064.html
| Sorry to break threading with this forged reply.

That's okay.  My apologies for using gmane in spite of its lousy behavior
as a web gateway when replying to cross-posted threads (unfortunately, I
don't know of any better web-based gateways that do what I want when I'm
not at my home computer; nabble provides an interface that gives better
control over where a single post goes, but also lacks cross-posting
abilities, and mangles posts worse than gmane).

| I proposed that the result of m4_dquote be passed to m4_bpatsubst.  I
| didn't mean that the result of m4_dquote should be passed directly to
| m4_len.

The point of the example was to demonstrate what happens if you pass
arguments to alternate macros, be it m4_len or m4_bpatsubst.  And I had
hoped that the example would convince you that m4_quote, not m4_dquote,
was what you were thinking of (effectively, the only difference between
m4_quote(foo) and m4_expand([foo]) is whether unquoted space after comma
is stripped).

|> Thus,
|> using m4_expand provides a minimal-effort QoI improvement to cater to
|> who don't know how to follow our advice of using proper quoting.
| This is the answer I was really looking for.

Glad you agree :)

- --
Don't work too hard, make some time for fun as well!

Eric Blake             address@hidden
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