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<?php
/**
*
* This file is part of the Aura Project for PHP.
*
* @package Aura.Intl
*
* @license http://opensource.org/licenses/MIT MIT
*
*/
namespace Aura\Intl;
use MessageFormatter;
use Aura\Intl\Exception;
/**
*
* Uses php intl extension to format messages
*
* @package Aura.Intl
*
*/
class IntlFormatter implements FormatterInterface
{
/**
*
* Constructor.
*
* @param string $icu_version The current ICU version; mostly used for
* testing.
*
* @throws Exception\IcuVersionTooLow when the Version of ICU installed
* is too low for Aura.Intl to work properly.
*
*/
public function __construct($icu_version = INTL_ICU_VERSION)
{
if (version_compare($icu_version, '4.8') < 0) {
throw new Exception\IcuVersionTooLow('ICU Version 4.8 or higher required.');
}
}
/**
*
* Format the message with the help of php intl extension
*
* @param string $locale
* @param string $string
* @param array $tokens_values
* @return string
* @throws Exception
*/
public function format($locale, $string, array $tokens_values)
{
$values = [];
foreach ($tokens_values as $token => $value) {
// convert an array to a CSV string
if (is_array($value)) {
$value = '"' . implode('", "', $value) . '"';
}
$values[$token] = $value;
}
try {
$formatter = new MessageFormatter($locale, $string);
if (! $formatter) {
$this->throwCannotInstantiateFormatter();
}
} catch (\Exception $e) {
$this->throwCannotInstantiateFormatter();
}
$result = $formatter->format($values);
if ($result === false) {
throw new Exception\CannotFormat(
$formatter->getErrorMessage(),
$formatter->getErrorCode()
);
}
return $result;
}
/**
*
* Throws exception
*
* @throws Exception\CannotInstantiateFormatter
*/
protected function throwCannotInstantiateFormatter()
{
throw new Exception\CannotInstantiateFormatter(
intl_get_error_message(),
intl_get_error_code()
);
}
}