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<?php
/**
* @link http://www.yiiframework.com/
* @copyright Copyright (c) 2008 Yii Software LLC
* @license http://www.yiiframework.com/license/
*/
namespace yii\i18n;
/**
* MessageFormatter is an enhanced version of PHP intl class that no matter which PHP and ICU versions are used:
*
* - Accepts named arguments and mixed numeric and named arguments.
* - Issues no error when an insufficient number of arguments have been provided. Instead, the placeholders will not be
* substituted.
*
* @see http://php.net/manual/en/migration55.changed-functions.php
*
* @author Alexander Makarov <sam@rmcreative.ru>
* @since 2.0
*/
class MessageFormatter extends \MessageFormatter
{
/**
* Format the message.
*
* @link http://php.net/manual/en/messageformatter.format.php
* @param array $args Arguments to insert into the format string.
* @return string|boolean The formatted string, or false if an error occurred.
*/
public function format($args)
{
$pattern = self::replaceNamedArguments($this->getPattern(), $args);
$this->setPattern($pattern);
return parent::format(array_values($args));
}
/**
* Quick format message.
*
* @link http://php.net/manual/en/messageformatter.formatmessage.php
* @param string $locale The locale to use for formatting locale-dependent parts.
* @param string $pattern The pattern string to insert things into.
* @param array $args The array of values to insert into the format string.
* @return string|boolean The formatted pattern string or false if an error occurred.
*/
public static function formatMessage($locale, $pattern, $args)
{
$pattern = self::replaceNamedArguments($pattern, $args);
return parent::formatMessage($locale, $pattern, array_values($args));
}
/**
* Replace named placeholders with numeric placeholders.
*
* @param string $pattern The pattern string to relace things into.
* @param array $args The array of values to insert into the format string.
* @return string The pattern string with placeholders replaced.
*/
private static function replaceNamedArguments($pattern, $args)
{
$map = array_flip(array_keys($args));
return preg_replace_callback('~({\s*)([\d\w]+)(\s*[,}])~u', function ($input) use ($map) {
$name = $input[2];
if (isset($map[$name])) {
return $input[1] . $map[$name] . $input[3];
}
else {
return "'" . $input[1] . $name . $input[3] . "'";
}
}, $pattern);
}
}