PERL Miscellaneous - scalar to array?

Author

scalar to array?

monkeys paw

2008-01-29, 7:21 pm

What is the easiest way to push a scalar variable containing text into
an array?

i.e.

$text = 'here is
a line
that has
four lines';

@lines = ???

the end result is:

@lines =('here is', 'a line', 'that has', 'four lines');

xhoster@gmail.com

2008-01-29, 7:21 pm

monkeys paw <user@example.net> wrote:
> What is the easiest way to push a scalar variable containing text into
> an array?

> i.e.
>
> $text = 'here is
> a line
> that has
> four lines';
>
> @lines = ???
>
> the end result is:
>
> @lines =('here is', 'a line', 'that has', 'four lines');

push @lines, split /\n/, $text;

Or if didn't really want to push by rather assign:

my @lines=split /\n/, $text;

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Jim Gibson

2008-01-29, 7:21 pm

In article < MKadnS_EYNTD6ALanZ2dnUVZ_vyinZ2d@insight
bb.com>, monkeys
paw <user@example.net> wrote:

> What is the easiest way to push a scalar variable containing text into
> an array?

So close! If only you had asked ' ... to split a scalar variable ...'.
Then you would have asked a "self-answering question" (SAQ).
<http://www.ginini.com/perlsaq.html>

>
> i.e.
>
> $text = 'here is
> a line
> that has
> four lines';
>
> @lines = ???
>
> the end result is:
>
> @lines =('here is', 'a line', 'that has', 'four lines');

@lines = split(/\n/,$text);

--
Jim Gibson

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Jürgen Exner

2008-01-29, 7:21 pm

monkeys paw <user@example.net> wrote:
>What is the easiest way to push a scalar variable containing text into
>an array?

That is a SAQ: perldoc -f push

>i.e.
>
>$text = 'here is
>a line
>that has
>four lines';
>
>@lines = ???
>
>the end result is:
>
>@lines =('here is', 'a line', 'that has', 'four lines');

But this has nothing to do with pushing a single scalar into an array as you
asked for at the beginning.

Just split// the text at newline and then push() or splice() the new
elements into the array. Or you could use an array slice instead, too.

jue

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