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Re: shift vs @_

by shmem (Canon)
on Oct 02, 2006 at 19:33 UTC ( #575932=note: print w/replies, xml ) Need Help??

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  1. or download this
        # 1. non-destructive
        my $var = $_[0];                      # first element of @_
    ...
        # 2. destructive
        my $var = shift;                      # first element gets removed
    + from @_
        my ($foo, $bar) = map { shift } 1,2;  # two elements get removed f
    +rom @_
    
  2. or download this
    sub foo {
        my $foo = $_[0];
        my $quux = baz(@_)
        return $foo ^= $quux;
    }
    

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[Corion]: "flag problem" to me sounds like "contains UTF-8 bytes but was never properly decoded to an UTF-8 string"
[LanX]: not my code ...
[choroba]: yeah, sounds like one of the strings is not flagged as UTF-8
[choroba]: which usually means its input wasn't handled correctly
[Corion]: choroba: Yeah, I think that would be the good solution
[LanX]: I suspect the first string which comes from the DB ...
[LanX]: ... but this part is already in production for a year now
[Corion]: LanX: The "good" approach here would be to use the appropriate DBI parameters to make the driver decode strings properly. But that will have a ripple-on effect of messing up all the places where manual decoding happens ;)
[LanX]: which means albeit being broken UTF8 it'll be handled correctly
[LanX]: and the problem only occurs since we changed the emails to base64

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