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#!/usr/bin/env php
<?php
require_once dirname(dirname(__FILE__)).'/__init_script__.php';
$args = new PhutilArgumentParser($argv);
$args->setTagline(pht('simple calculator example'));
$args->setSynopsis(<<<EOHELP
**calculator.php** __op__ __n__ ...
Perform a calculation.
EOHELP
);
$add_workflow = id(new PhutilArgumentWorkflow())
->setName('add')
->setExamples('**add** __n__ ...')
->setSynopsis(pht('Compute the sum of a list of numbers.'))
->setArguments(
array(
array(
'name' => 'numbers',
'wildcard' => true,
),
));
$mul_workflow = id(new PhutilArgumentWorkflow())
->setName('mul')
->setExamples('**mul** __n__ ...')
->setSynopsis(pht('Compute the product of a list of numbers.'))
->setArguments(
array(
array(
'name' => 'numbers',
'wildcard' => true,
),
));
$flow = $args->parseWorkflows(
array(
$add_workflow,
$mul_workflow,
new PhutilHelpArgumentWorkflow(),
));
$nums = $args->getArg('numbers');
if (empty($nums)) {
echo pht('You must provide one or more numbers!')."\n";
exit(1);
}
foreach ($nums as $num) {
if (!is_numeric($num)) {
echo pht("Number '%s' is not numeric!", $num)."\n";
exit(1);
}
}
switch ($flow->getName()) {
case 'add':
echo array_sum($nums)."\n";
break;
case 'mul':
echo array_product($nums)."\n";
break;
}
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