Shlomi,
Yea, that makes sense now.
Emeka
On Mon, Aug 1, 2011 at 2:52 PM, Shlomi Fish <shlo...@shlomifish.org> wrote:
> On Mon, 1 Aug 2011 13:49:22 +0100
> AKINLEYE <damola.akinl...@gmail.com> wrote:
>
> > my @characters = split /[\s]/, $foo;
> > foreach my $letter(@characters )
> > {
> > print $letter ;
> >
> > }
> >
> > or
> >
> > my @characters = split /[\s]/, $foo;
> > print join("\n" , @characters);
> >
>
> That won't work because split/[\s]/ will split the string on any whitespace
> character into words that don't contain whitespace. As a result:
>
> <<<
> shlomif:~$ perl -e 'print map { "$_\n" } split/[\s]/, "Big Brother From
> Afr"'
> Big
> Brother
> From
> Afr
> shlomif:~$
> >>>
>
> To convert a string to characters one can use split based on the empty
> regex,
> as Shawn showed:
>
> <<<
> shlomif:~$ perl -e 'print map { "$_\n" } split//, "Big Brother From Afr"'
> B
> i
> g
>
> B
> r
> o
> t
> h
> e
> r
>
> F
> r
> o
> m
>
> A
> f
> r
> >>>
>
> One can also access individual characters without splitting and populating
> an
> array using http://perldoc.perl.org/functions/substr.html . Here's a demo:
>
> <<<
> #!/usr/bin/perl
>
> use strict;
> use warnings;
>
> my $s = "Big Brother From Afr";
>
> foreach my $pos (0 .. length($s)-1)
> {
> my $c = substr($s, $pos, 1);
> print "Character No. $pos = '$c'.\n"
> }
> >>>
>
> >
> > Untested code though.
> >
>
> Untested indeed, and please avoid top posting.
>
> Regards,
>
> Shlomi Fish
>
> --
> -----------------------------------------------------------------
> Shlomi Fish http://www.shlomifish.org/
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>
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