Trying to splice....

am 09.04.2008 21:14:15 von lokeey

.....@dump into the middle of @players without removing any elements
from @players.

so i've done the following...

#!/usr/bin/perl -w

# extracting elements using splice

@players = ("ryno", "fukudome", "grace", "banks", "santo",
"soto", "marmol", "sori", "bigZ", "pie");
@dump = splice(@players, 0,2, "theriot", "sosa");
print "The original array is @players\n";
print "The players dumped after the splice are: @dump.\n";
print "The spliced array is now @players.\n";

....but I'm not sure I'm doing the splice correct, because the first
line prints all the players including the ones stated in @dump. should
i be using negative offset or length?

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Re: Trying to splice....

am 10.04.2008 16:03:18 von Gunnar Hjalmarsson

Re: Trying to splice....

am 10.04.2008 16:19:41 von daggerquill unknown

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Re: Trying to splice....

am 10.04.2008 16:26:24 von lokeey

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Re: Trying to splice....

am 10.04.2008 16:56:28 von lokeey

On Apr 10, 9:03 am, nore...@gunnar.cc (Gunnar Hjalmarsson) wrote:
> lok...@gmail.com wrote:
> > ....@dump into the middle of @players without removing any elements
> > from @players.
>
> > so i've done the following...
>
> > #!/usr/bin/perl -w
>
> > # extracting elements using splice
>
> > @players = ("ryno", "fukudome", "grace", "banks", "santo",
> > "soto", "marmol", "sori", "bigZ", "pie");
> > @dump = splice(@players, 0,2, "theriot", "sosa");
> > print "The original array is @players\n";
> > print "The players dumped after the splice are: @dump.\n";
> > print "The spliced array is now @players.\n";
>
> > ...but I'm not sure I'm doing the splice correct, because the first
> > line prints all the players including the ones stated in @dump. should
> > i be using negative offset or length?
>
> Your post is confusing. Please state both the exact output you get and
> the expected output.
>
> --
> Gunnar Hjalmarsson
> Email:http://www.gunnar.cc/cgi-bin/contact.pl

So basically, I was trying to figure out how could you splice @dump
into the middle of @players without removing any elements of @players,
but I finally figured it out last night, I just couldn't find the
original post to let every one know.

my code....

#!/usr/bin/perl -w

# extracting elements using splice

@players = ("ryno", "fukudome", "grace", "banks", "santo",
"soto", "marmol", "sori", "bigZ", "pie");

print "The original array is @players\n";

@dump = splice(@players, 4,0, "theriot", "sosa");

print "The players dumped after the splice are: @dump.\n";

print "The spliced array is now @players.\n";

$ ./splice.pl
The original array is ryno fukudome grace banks santo soto marmol sori
bigZ pie
The players dumped after the splice are: .
The spliced array is now ryno fukudome grace banks theriot sosa santo
soto marmol sori bigZ pie.

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Re: Trying to splice....

am 10.04.2008 19:22:05 von krahnj

lokeey@gmail.com wrote:
> ....@dump into the middle of @players without removing any elements
> from @players.
>
> so i've done the following...
>
> #!/usr/bin/perl -w
>
> # extracting elements using splice
>
> @players = ("ryno", "fukudome", "grace", "banks", "santo",
> "soto", "marmol", "sori", "bigZ", "pie");
> @dump = splice(@players, 0,2, "theriot", "sosa");

splice() modifies @players, starting at element 0 ("ryno"), with a
length of 2 and replace those with the list ("theriot", "sosa") and
return the elements that were removed ("ryno", "fukudome").

> print "The original array is @players\n";

At this point @players has already been modified so it is not the
original array.

> print "The players dumped after the splice are: @dump.\n";
> print "The spliced array is now @players.\n";
>
>
> ...but I'm not sure I'm doing the splice correct, because the first
> line prints all the players including the ones stated in @dump. should
> i be using negative offset or length?

If you want to put ("theriot", "sosa") into the middle of @players
without removing any of its elements then you have to use a length of 0.

splice @players, 0, 0, "theriot", "sosa";

Which could also be written as:

unshift @players, "theriot", "sosa";

John
--
Perl isn't a toolbox, but a small machine shop where you
can special-order certain sorts of tools at low cost and
in short order. -- Larry Wall

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