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/*
* This file is part of the ICanBoogie package.
*
* (c) Olivier Laviale <olivier.laviale@gmail.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace ICanBoogie\CLDR;
use ICanBoogie\Accessor\AccessorTrait;
/**
* Formats variable-length lists of things such as "Monday, Tuesday, Friday, and Saturday".
*
* @see http://www.unicode.org/reports/tr35/tr35-general.html#ListPatterns
*/
class ListFormatter implements Formatter
{
use AccessorTrait;
use RepositoryPropertyTrait;
/**
* @param Repository $repository
*/
public function __construct(Repository $repository = null)
{
$this->repository = $repository;
}
/**
* Formats a variable-length lists of things.
*
* @param array $list The list to format.
* @param array $list_patterns A list patterns.
*
* @return string
*/
public function __invoke(array $list, array $list_patterns)
{
return $this->format($list, $list_patterns);
}
/**
* Formats a variable-length lists of things.
*
* @param array $list The list to format.
* @param array $list_patterns A list patterns.
*
* @return string
*/
public function format(array $list, array $list_patterns)
{
$list = array_values($list);
switch (count($list))
{
case 0:
return "";
case 1:
return (string) current($list);
case 2:
return $this->format_pattern($list_patterns[2], $list[0], $list[1]);
default:
$n = count($list) - 1;
$v1 = $list[$n];
for ($i = $n - 1 ; $i > -1 ; $i--)
{
$v0 = $list[$i];
if ($i == 0)
{
$pattern = $list_patterns['start'];
}
else if ($i + 1 == $n)
{
$pattern = $list_patterns['end'];
}
else
{
$pattern = $list_patterns['middle'];
}
$v1 = $this->format_pattern($pattern, $v0, $v1);
}
return $v1;
}
}
/**
* @param string $pattern
* @param string $v0
* @param string $v1
*
* @return string
*/
private function format_pattern($pattern, $v0, $v1)
{
return strtr($pattern, [
'{0}' => $v0,
'{1}' => $v1
]);
}
/**
* Localize the instance.
*
* @param string $locale_code
*
* @return LocalizedListFormatter
*
* @throw \LogicException when the instance was created without a repository.
*/
public function localize($locale_code)
{
if (!$this->repository)
{
throw new \LogicException("The instance was created without a repository.");
}
return $this->repository->locales[$locale_code]->localize($this);
}
}