String Distribution for Firefox Aurora, based on data from Transvision

gistfile1.php

<?php

function cleanEntity($entity)
{
    $component = explode('/', $entity);
    array_pop($component); // suppress entity
    $component = array_filter(
        $component,
        function($val) { return $val != 'chrome'; }
    );

    return implode('/', $component);
}

function excludeProducts($entity)
{
    $component = explode('/', $entity);
    if (in_array($component[0],  ['chat', 'calendar', 'suite',
                                  'mail', 'editor', 'extensions'] ))
    {
        return false;
    }

    return true;
}

include __DIR__ . '/TMX/aurora/en-US/cache_en-US.php';
$tmx = array_keys($tmx);
$tmx = array_map('cleanEntity', $tmx);
$tmx = array_filter($tmx, 'excludeProducts');
$results  = [];
$devtools = 0;

foreach ($tmx as $val) {

    $component = explode('/', $val);
    $main_component = $component[0];

    if (in_array('devtools', $component)) {
        $devtools++;
    }

    if (! isset($results[$main_component])) {
        $results[$main_component] = 1;
    } else {
        $results[$main_component] += 1;
    }
}

foreach ($results as $component => $number) {
    print $component . ' : ' . $number . '<br>';
}

print "(of which devtools: $devtools )<br>";
print 'Total: ' . count($tmx) . '<br>';