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I.e.: IFS=$OLDIFS Rays_function E.g.: function a { ; echo $a ; } : ~ Tue 3 16:37; a=foo : ~ Tue 3 16:37; a foo : ~ Tue 3 16:37; a=bar a bar : ~ Tue 3 16:37; a foo On Tue, Aug 3, 2021 at 4:15 PM Ray Andrews wrote: > I have a function that requires this: > > local IFS=$'\n' > > ... but the function calls other functions in which I need to protect > $IFS from that change. Can I limit the scope? As it is I'm laboring it > with this: > > In the calling function: > > local OLDIFS="$IFS" > local IFS=$'\n' > > In the called function: > > IFS=$OLDIFS > > code ... > code ... > > IFS=$'\n' > return > > ... there's got to be a more streamlined way. > > > --00000000000042aacd05c8adb78f Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
I think you can prefix the called function w= ith IFS=3D$OLDIFS.=C2=A0 I.e.:

IFS=3D$OLDIFS Rays_function

E.g.:

function a {
; echo $a
; }
: ~ = Tue 3 16:37; a=3Dfoo
: ~ Tue 3 16:37; a
foo
: ~ Tue 3 16:37; a=3Db= ar a
bar
: ~ Tue 3 16:37; a
foo


On Tue, Aug 3, 2021 at 4:15 PM Ray Andrews <rayandrews@eastlink.ca> wrote:
I have a function that = requires this:

=C2=A0=C2=A0=C2=A0=C2=A0 local IFS=3D$'\n'

... but the function calls other functions in which I need to protect
$IFS from that change.=C2=A0 Can I limit the scope?=C2=A0 As it is I'm = laboring it
with this:

In the calling function:

=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 local OLDIFS=3D"$IFS"
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 local IFS=3D$'\n'

In the called function:

=C2=A0=C2=A0=C2=A0=C2=A0 IFS=3D$OLDIFS

=C2=A0=C2=A0=C2=A0=C2=A0 code ...
=C2=A0=C2=A0=C2=A0=C2=A0 code ...

=C2=A0=C2=A0=C2=A0=C2=A0 IFS=3D$'\n'
=C2=A0=C2=A0=C2=A0=C2=A0 return

... there's got to be a more streamlined way.


--00000000000042aacd05c8adb78f--