From: Bart Schaefer <schaefer@brasslantern.com>
To: zsh-users@zsh.org
Subject: Re: ${(s::)VAR} vs "${(s::)VAR}"
Date: Fri, 27 Apr 2012 19:50:48 -0700 [thread overview]
Message-ID: <120427195048.ZM10479@torch.brasslantern.com> (raw)
In-Reply-To: <20120427213837.1b861851@pws-pc.ntlworld.com>
On Apr 27, 9:38pm, Peter Stephenson wrote:
}
} This comes from the function wordcount() in utils.c, which is called in
} a couple of functions used for splitting words, none of which has any
} comments apart from a few speculations from me dating from 2003. The
} function takes a mysterious argument mul which presumably has got
} something to do with doing something multiple times.
"mul" takes values -1, 0, 1. The only time it's less than zero is when
called from spacesplit() with allownull == 0. So it must have to do
with handling multiple consecutive appearances of the separator.
} for (; (c = findsep(&s, sep, 0)) >= 0; s += sl)
} - if ((c && *(s + sl)) || mul)
} + if ((c || mul) && *(s + sl))
} r++;
Does it matter that the changed line dereferences s+sl in cases where
the original line does not?
next prev parent reply other threads:[~2012-04-28 2:51 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-04-26 20:48 Kynn Jones
2012-04-27 20:38 ` Peter Stephenson
2012-04-28 2:50 ` Bart Schaefer [this message]
2012-04-29 18:22 ` Peter Stephenson
2012-04-29 18:41 ` Peter Stephenson
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