my $header_row= 'one two three four five';
...
my %name2Index;
...
my $col=0;
foreach my $col_head (split ' ',$header_row)
{
$name2Index{$col_head} = $col++;
}
Or more simply as:
my @header_row = qw/ one two three four five /;
...
my %name2Index;
...
@name2Index{ @header_row } = 0 .. $#header_row;
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