Re: String to two dimensional array

sub string2matrix { 
    my( $x, $y, $s ) = @_; 
    die "Can't create $x x $y matrix from string length: ", length $s
        unless length( $s ) == $x * 2 * $y -1;

    return map{ 
        map{ [ split ] } $_ 
    } unpack "(A@{[ $x * 2 ]})*", $s; 
}

my $s = '0 X X X X X X X X 1 X X X X X X X X 2 X X X X X X X X 3 X X X
+ X X X X X 4 X X X X X X X X 5 X X X X X X X X 6 X X X X X X X X 7';;

my @a = string2matrix( 8, 8, $s );;

pp \@a;;
[
  [0, "X", "X", "X", "X", "X", "X", "X"],
  ["X", 1, "X", "X", "X", "X", "X", "X"],
  ["X", "X", 2, "X", "X", "X", "X", "X"],
  ["X", "X", "X", 3, "X", "X", "X", "X"],
  ["X", "X", "X", "X", 4, "X", "X", "X"],
  ["X", "X", "X", "X", "X", 5, "X", "X"],
  ["X", "X", "X", "X", "X", "X", 6, "X"],
  ["X", "X", "X", "X", "X", "X", "X", 7],
]
[download]

Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.

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Comment on Re: String to two dimensional array Download Code

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Re^2: String to two dimensional array by tashworth (Initiate) on May 06, 2008 at 22:54 UTC
Thank you so much for your help. I am new to the perlmonks site, but it looks like a great place to learn perl. Anyway, I understand most of what you did except for the line that says: pp \@a;;	[reply]
Re^3: String to two dimensional array by BrowserUk (Patriarch) on May 06, 2008 at 23:03 UTC
Sorry. I omitted the line: `use Data::Dump qw[ pp ];` [download] See Data::Dump. It is a Data::Dumper clone. The `pp()` sub (for pretty print) is an alternative for the normally exported `Dump()` which clashes with the an export from another module I use frequently: Devel::Peek. Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error. "Science is about questioning the status quo. Questioning authority". In the absence of evidence, opinion is indistinguishable from prejudice. "Too many [] have been sedated by an oppressive environment of political correctness and risk aversion."	[reply] [d/l] [select]


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