Re: extracting the key value pairs from a string

Or this?

my $s = '   ABC: 123 xyz: 100    def: YYY    aaa: ZZZ';
my %hash;

for (split /[^:]\s+/, $s) {
    my ($key, $val) = split /:\s*/;
    next unless $key;
    $hash{$key} = $val;
}
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Comment on Re: extracting the key value pairs from a string Download Code

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Re^2: extracting the key value pairs from a string by johngg (Canon) on Jun 27, 2008 at 08:56 UTC
`split /[^:]\s+/, $s` That's not going to do what you hoped as it will consume the last character of each value except the one at the end of the string. You can get around that by using a negative look-behind. I also use map to avoid the `for` loop and temporary variables. `use strict; use warnings; use Data::Dumper; my $s = q{ ABC: 123 xyz: 100 def: YYY aaa: ZZZ}; my %extract = map { split m{\s:\s} } split m{(?<!:)\s+}, $s; print Data::Dumper->Dumpxs( [ \ %extract ], [ q{*extract} ] );` [download] This produces `%extract = ( 'ABC' => '123', 'def' => 'YYY', 'aaa' => 'ZZZ', 'xyz' => '100' );` [download] I hope this is of interest. Cheers, JohnGG	[reply] [d/l] [select]

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Re^2: extracting the key value pairs from a string
by johngg (Canon) on Jun 27, 2008 at 08:56 UTC

split /[^:]\s+/, $s

That's not going to do what you hoped as it will consume the last character of each value except the one at the end of the string. You can get around that by using a negative look-behind. I also use map to avoid the for loop and temporary variables.

use strict;
use warnings;

use Data::Dumper;

my $s = q{   ABC: 123 xyz: 100    def: YYY    aaa: ZZZ};

my %extract =
   map { split m{\s*:\s*} }
   split m{(?<!:)\s+}, $s;

print Data::Dumper->Dumpxs( [ \ %extract ], [ q{*extract} ] );
[download]

This produces

%extract = (
             'ABC' => '123',
             'def' => 'YYY',
             'aaa' => 'ZZZ',
             'xyz' => '100'
           );
[download]

I hope this is of interest.

Cheers,

JohnGG

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