On Wednesday, May 1, 2002, at 02:27 PM, Aaron Sherman wrote:
> unless my $fh = $x.open {
> die "Cannot open $x: $!";
> } else while $fh.getline -> $_ {
> print;
> } else {
> die "No lines to read in $x";
> }
I think you need a bet
On Wed, 2002-05-01 at 18:47, Damien Neil wrote:
> On Wednesday, May 1, 2002, at 02:27 PM, Aaron Sherman wrote:
> > unless my $fh = $x.open {
> > die "Cannot open $x: $!";
> > } else while $fh.getline -> $_ {
> > print;
> > } else {
> > die "No lines
with p5, Ive often written
eval {} or carp "$@ blah";
it seems to work, and it reads nicer (to my eye) than
eval {}; if ($@) {}
but I surmise that it works cuz the return-value from the block is non-zero,
for successful eval, and 0 or undef when block dies, not cuz of magical
treatment of $@
On Thu, 2 May 2002, Jim Cromie wrote:
>
> with p5, Ive often written
>
> eval {} or carp "$@ blah";
>
> it seems to work, and it reads nicer (to my eye) than
>
> eval {}; if ($@) {}
>
> but I surmise that it works cuz the return-value from the block is non-zero,
> for successful eval, and 0
On Thu, May 02, 2002 at 02:33:42PM -0600, Jim Cromie wrote:
>
> with p5, Ive often written
>
> eval {} or carp "$@ blah";
You generally Don't Want To Do That.
If the eval succeeds, but the last statement in the eval happens to come
out as false, then it'll still carp:
$a = 0; eval { 1 < $a
> Um... I know it's scary, but I can actually imagine using this (or
> something like this) in development. I'll occasionally work on a section
> of code I'm not ready to integrate yet. It would be nice to be able to
> syntax check it without uncommenting and re-commenting the whole thing.
> :)
Y
At 02:33 PM 5/2/02 -0600, Jim Cromie wrote:
>eval {} or carp "$@ blah";
>
>it seems to work, and it reads nicer (to my eye) than
>
>eval {}; if ($@) {}
% perl -le 'eval { print "No exceptions here"; 0 } or warn "$@ blah"'
No exceptions here
blah at -e line 1.
--
Peter Scott
Pacific Systems De
Jim Cromie wrote:
> with p5, Ive often written
>
> eval {} or carp "$@ blah";
>
> it seems to work,
modulo any block that returns false :-(
> and it reads nicer (to my eye) than
>
> eval {}; if ($@) {}
>
> but I surmise that it works cuz the return-value from the block is non-zero,
> f
