Gentoo Archives: gentoo-dev

From: Steve Long <slong@××××××××××××××××××.uk>
To: gentoo-dev@l.g.o
Subject: [gentoo-dev] Re: New eclasses for XEmacs lisp
Date: Sat, 08 Sep 2007 10:25:40
Message-Id: fbtsok$o7g$1@sea.gmane.org
In Reply to: Re: [gentoo-dev] New eclasses for XEmacs lisp by "Marijn Schouten (hkBst)"
1 Marijn Schouten (hkBst) wrote:
2 >>
3 http://overlays.gentoo.org/proj/emacs/browser/emacs-overlay/eclass/xemacs-elisp-common.eclass
4 >
5 > You use $* and $@ here which are the same when unquoted. They should
6 > probably be quoted and that means that all instances would become the four
7 > characters "$@".
8 >
9 Yeah, that's definitely how to pass thru parameters in function calls.
10
11 <greybot> The difference between $@ and $*: without double quotes, none at
12 all: both equal $1 $2 .... With double quotes, "$@" is "$1" "$2" ...,
13 while "$*" is "$1c$2c..." (where c is the first character of $IFS). You
14 almost always want "$@".
15
16 So using "$*" maps to one string parameter. If you're calling a shell
17 function you might not notice the difference (until you use a parameter
18 with a space) using plain $* since the shell splits parameters to commands
19 on characters in IFS. The point is, to deal with spaces in strings you need
20 to use "$@".
21
22 #bash is your friend (although some of the ops are way too grumpy ;)
23
24
25 --
26 gentoo-dev@g.o mailing list