--- Allison Randal [EMAIL PROTECTED] wrote:
On Wed, Feb 27, 2002 at 10:11:13AM -0800, Austin Hastings wrote:
Cwhen is a conditional like Cif, not a topicalizer.
Right, it's a topicalizee, the victim of topicalization.
And so it uses $_ or $x or $! or whatever the current topic is.
On Thu, Feb 28, 2002 at 04:12:12PM -0800, Austin Hastings wrote:
Nobody has the least bit of trouble understanding that WITHIN the for
loop, the default value just changed from whatever it was outside
Well, Cfor is a topicalizer, and always has been, even before we had a
name for it, so this
It's amazing what a night will do. See bottom.
--- Allison Randal [EMAIL PROTECTED] wrote:
On Tue, Feb 26, 2002 at 02:20:48PM -0800, Brent Dax wrote:
Austin Hastings:
#
# Which, then, would you like:
#
# To implicitly localize $_, losing access to an outer version,
# or to have to
On Wed, Feb 27, 2002 at 08:02:08AM -0800, Austin Hastings wrote:
BTW, Cfor doesn't alias $_ always. That's why things like the example
below are possible.
Yes. Cfor and Cgiven will only alias $_ when they are not aliasing a
named variable.
Hmm. Suppose we force Cwhen to alias $_, but give
--- Allison Randal [EMAIL PROTECTED] wrote:
I'm still not convinced of your basic point, that it would be a good
thing to have Cwhen aliasing $_. Variations on whether it does it
automatically or at my request and how don't change the fundamental
concept. Cwhen is a conditional like Cif, not
On Wed, Feb 27, 2002 at 10:11:13AM -0800, Austin Hastings wrote:
Cwhen is a conditional like Cif, not a topicalizer.
Right, it's a topicalizee, the victim of topicalization. And so it uses
$_ or $x or $! or whatever the current topic is.
i.e. a defaulting construct or topic sensitive
The when keyword can use a localizer that makes its target obvious but
slightly counter-intuitive.
given $x {
when /a/ { ... }
}
The problem is operations within the when-block that might expect to
use $_, the defaultdefault variable.
given $x {
when /a/ { s/a/A/; }
}
After all, I used a
On Tue, Feb 26, 2002 at 01:26:41PM -0800, Austin Hastings wrote:
Possibility B- when-blocks accept a - operator, which if used naked
binds the current localizer to $_.
I think if I had a choice between
given $y - $x {
when /a/ - {...}
when /b/ - {...}
...
}
and
Austin Hastings:
# --- Allison Randal [EMAIL PROTECTED] wrote:
# On Tue, Feb 26, 2002 at 01:26:41PM -0800, Austin Hastings wrote:
#
# Possibility B- when-blocks accept a - operator, which if used
# naked
# binds the current localizer to $_.
#
# I think if I had a choice between
#
#
On Tue, Feb 26, 2002 at 02:20:48PM -0800, Brent Dax wrote:
Austin Hastings:
#
# Which, then, would you like:
#
# To implicitly localize $_, losing access to an outer version,
# or to have to change between implicit and explicit operations?
Well, I like the idea of having Cwhen and the
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