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Re^3: Perl oddities

by YuckFoo (Abbot)
on Mar 01, 2005 at 20:19 UTC ( #435598=note: print w/ replies, xml ) Need Help??


in reply to Re^2: Perl oddities
in thread Perl oddities

I am aware of the method suggested by gaal. I usually do not use it because I almost always wrap the regex up with an 'if'. Throw in a my function and it starts to get messy.

# Ugly to me... if (my ($this, $that, $some, $other) = $line =~ /(this).*(that).*(some +).*(other)/) { do_it(); }; # Better, I think... if ($line =~ /(this).*(that).*(some).*(other)/) { my ($this, $that, $some, $other) = ($1, $2, $3, $4); do_it(); }
This business doesn't DWYM:

my ( $this, $that, $some, $other, $foo, $bar, $baz ) = ( $1 .. $+ );
The magical string incrementer is summoned to build a list of strings starting with the first capture, ending with the last.

YuckFoo


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Re^4: Perl oddities
by ihb (Deacon) on Mar 01, 2005 at 22:10 UTC

    You can do

    if (my @r = $line =~ /(this).*(that).*(some).*(other)/) { my ($this, $that, $some, $other) = @r; do_it(); }
    if you want the conditional expression shorter and don't want to repeat the dollar-digit vars.

    ihb

    See perltoc if you don't know which perldoc to read!

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