On Tue, 2006-07-11 at 10:06 -0400, Aaron Sherman wrote:
> For example:
>
> our List multi Container::each(Container [EMAIL PROTECTED])
In thinking about each, I've come across an interesting need. I wrote
this example:
for each(=<>; 1..*) -> ($line, $lineno) {
say "$lineno: $line";
}
Which is obviously an infinite loop. You could re-write that:
for each(=<>; 1..*) -> ($line, $lineno) {
$line err last;
say "$lineno: $line";
}
But would it be reasonable to also provide a named-only parameter to
each for that purpose?
our List multi Container::each(Bool :$stop, Container [EMAIL PROTECTED])
So that:
for each(:stop, =<>; 1..*) -> ($line, $lineno) {
say "$lineno: $line";
}
would only iterate until one of the containers was exhausted (in this
case, the filehandle).
Should this be added? Should zip have the same modifier?
--
Aaron Sherman <[EMAIL PROTECTED]>
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