Here is some testing that does not require a sub-shell and does support
options:
rhf2-1:~/tmp>foof() { local IFS=' ,+';local args="$*"; for i in
$args; do echo i=$i; done; }
rhf2-1:~/tmp>foo1() { for i; do echo i=$i; done; }
rhf2-1:~/tmp>foo2() { for i in $*; do echo i=$i; done; }
rhf2-1:~/tmp>foo1 'a b c' d e+f g,h 'j k'
i=a b c
i=d
i=e+f
i=g,h
i=j k
rhf2-1:~/tmp>foo2 'a b c' d e+f g,h 'j k'
i=a
i=b
i=c
i=d
i=e+f
i=g,h
i=j
i=k
rhf2-1:~/tmp>foof 'a b c' d e+f g,h 'j k'
i=a
i=b
i=c
i=d
i=e
i=f
i=g
i=h
i=j
i=k
rhf2-1:~/tmp>uname -a
CYGWIN_NT-5.1 rhf2-1 1.5.25(0.156/4/2) 2008-06-12 19:34 i686 Cygwin
Note: that should be IFS=$' \t+,' and $'j\tk' in case the mailer messes
this up. I did not use this bash special syntax.
So which should we go with? foo2() which does the original way or foof()
which allows you to use ',' and '+', and spaces?
-Don
-------- Original Message --------
Subject: Re: Tests in Cygwin
From: Alex Riesen <raa.lkml@xxxxxxxxx>
To: Junio C Hamano <gitster@xxxxxxxxx>
Date: 5/8/2009 5:28 AM
2009/5/8 Junio C Hamano <gitster@xxxxxxxxx>:
Johannes Sixt <j.sixt@xxxxxxxxxxxxx> writes:
+for prerequisite in $(echo "$1" | tr , ' ')
So, you dislike the space separator, but you also dislike the IFS games
that save a few new processes? ;) (Think of Windows, where fork is expensive).
You can play IFS=, game, then ;-)
I have to admit that it feels so 80'ish, back when our UNIX machines were
so slow that we tried to shave every fork+exec from our shell scripts by
using built-ins when possible, though.
Well, on Windows (at least with Cygwin), it is 80's still. My workstation
(a 2.4GHz P4, 70C hot, 2Gb Dell monster) is about 100x slower than my
old Asus laptop (a 384Mb, 1200Ghz Pentium-M) in starting a trivial program
("int main() { return 0; }").
I'm trying to save where possible on cygwin, whatever cost.
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