[Help-bash] IFS can not be made local?

[Peng Yu]

Hi, The following example shows that IFS can not be set local. Is it
so? If I want to temporarily change IFS, the best way is still to
assign it to a temp variable and recover the original value later on?

~~~
/tmp$ cat main.sh
#!/usr/bin/env bash
# vim: set noexpandtab tabstop=2:

function cmd {
local IFS
IFS=:
x=($1)
printf "%s\n" "address@hidden"
}

set -v
x=a:b
printf "%s\n" "address@hidden"
cmd "$x"
printf "%s\n" "address@hidden"

/tmp$ ./main.sh
x=a:b
printf "%s\n" "address@hidden"
a:b
cmd "$x"
a
b
printf "%s\n" "address@hidden"
a
b
~~~

-- 
Regards,
Peng