xtrace scope

xtrace scope

[Clint Adams]

Is there rationale for having XTRACE be local to functions?

Re: xtrace scope

[Peter Stephenson]

Clint Adams wrote:
> Is there rationale for having XTRACE be local to functions?

This feature long predates LOCAL_OPTIONS and I kept it as a special
case when I added that just for compatibility.  I don't think there's
any standardisation requirement.

pws


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Re: xtrace scope

[Clint Adams]

> This feature long predates LOCAL_OPTIONS and I kept it as a special
> case when I added that just for compatibility.  I don't think there's
> any standardisation requirement.

Would it be silly to add another option so XTRACE changes could be made
global in sh/ksh emulation?

Re: xtrace scope

[Peter Stephenson]

Clint Adams wrote:
> > This feature long predates LOCAL_OPTIONS and I kept it as a special
> > case when I added that just for compatibility.  I don't think there's
> > any standardisation requirement.
> 
> Would it be silly to add another option so XTRACE changes could be made
> global in sh/ksh emulation?

I'm not sure what the right answer is... Maybe it's small enough that
we can simply annoy people and make "set -x" obey normal option control,
so that you need to set localoptions.

pws


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Re: xtrace scope

[Oliver Kiddle]

Clint Adams wrote:
> Would it be silly to add another option so XTRACE changes could be made
> global in sh/ksh emulation?

Keep in mind that xtrace changes can be local in ksh.

In ksh, there is a difference between defining a function using the
`function name {}' syntax and the `name() {}' syntax. With the former,
`set -x' and other things like typeset have local scope.

Oliver


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