http://qs1969.pair.com?node_id=606397


in reply to Help in manipulating values from two arrays

How many times do we have to tell the children? Do not hand roll code to parse HTML/XML, life just ain't long enough for that to be worth while - even as an exercise.

Use HTML::TreeBuilder for HTML or XML::Twig for XML. In this case it looks like XML so lets wrap a root element around the sample data provided and see what we can do:

use strict;
use warnings;
use XML::Twig;

my $xml = <<XML;
<root>

[download]
<act>Key</act><emp>3384</emp><job>78082</job><chap>6</chap><pg>20</pg>
+<time>0.7</time><prod>114.285714285714</prod>
<act>Reconcile</act><emp>3017</emp><job>78062</job><chap>2-7</chap><pg
+>0</pg><time>1.4</time><prod>Insufficient Information</prod>
<act>Training</act><emp>3384</emp><job>77654</job><chap>-</chap><pg>0<
+/pg><time>5.1</time><prod>Non-Billable</prod>
<act>Management</act><emp>3017</emp><job>77893</job><chap>-</chap><pg>
+0</pg><time>4.4</time><prod>Non-Billable</prod>
<act>Break</act><emp>3379</emp><job>33843</job><chap>-</chap><pg>0</pg
+><time>0.2</time><prod>Non-Billable</prod>
<act>Excess overload</act><emp>3379</emp><job>77570</job><chap>14</cha
+p><pg>1</pg><time>0.5</time><prod>6.66666666666667</prod>
<act>Management</act><emp>3123</emp><job>88898</job><chap>-</chap><pg>
+0</pg><time>0.5</time><prod>Non-Billable</prod>
<act>Management</act><emp>3123</emp><job>22304</job><chap>-</chap><pg>
+0</pg><time>0.3</time><prod>Insufficient Information</prod>
<act>Management</act><emp>3123</emp><job>11121</job><chap>-</chap><pg>
+0</pg><time>1.4</time><prod>Non-Billable</prod>
<act>Adapt</act><emp>3123</emp><job>78143</job><chap>08-</chap><pg>0</
+pg><time>0.3</time><prod>Insufficient Information</prod>
<act>Import</act><emp>3417</emp><job>76584</job><chap>App K</chap><pg>
+4</pg><time>1.0</time><prod>11.4285714285714</prod>
<act>Break</act><emp>3123</emp><job>22732</job><chap>-</chap><pg>0</pg
+><time>0.4</time><prod>50.65687</prod>
<act>key</act><emp>3123</emp><job>78143</job><chap>08</chap><pg>0</pg>
+<time>3.3</time><prod>45.5544</prod>
<act>Supervision</act><emp>3192</emp><job>54281</job><chap>-</chap><pg
+>0</pg><time>4.0</time><prod>Non-Billable</prod>

[download]
</root>
XML

my $t= XML::Twig->new (twig_roots => {emp => \&emp, prod => \&prod});
my %emp;
my $currEmp;

$t->parse ($xml);

print "$_ - $emp{$_}\n" for sort keys %emp;


sub emp {
    my ($t, $data) = @_;
   
    $currEmp = $data->trimmed_text ();
    $emp{$currEmp} ||= '';
}


sub prod {
    my ($t, $data) = @_;
    my $text = $data->trimmed_text ();
    
    return if $text !~ /^\d+(\.\d*)?/;
    $emp{$currEmp} ||= 0;
    $emp{$currEmp} += $text;
}

[download]

Prints:

3017 - 
3123 - 96.21127
3192 - 
3379 - 6.66666666666667
3384 - 114.285714285714
3417 - 11.4285714285714

[download]
DWIM is Perl's answer to Gödel

In Section Seekers of Perl Wisdom