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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\build\controllers;
use yii\console\Exception;
use yii\console\Controller;
/**
* http://www.unicode.org/cldr/charts/supplemental/language_plural_rules.html
* @author Qiang Xue <qiang.xue@gmail.com>
* @since 2.0
*/
class LocaleController extends Controller
{
public $defaultAction = 'plural';
/**
* Generates the plural rules data.
*
* This command will parse the plural rule XML file from CLDR and convert them
* into appropriate PHP representation to support Yii message translation feature.
* @param string $xmlFile the original plural rule XML file (from CLDR). This file may be found in
* http://www.unicode.org/Public/cldr/latest/core.zip
* Extract the zip file and locate the file "common/supplemental/plurals.xml".
* @throws Exception
*/
public function actionPlural($xmlFile)
{
if (!is_file($xmlFile)) {
throw new Exception("The source plural rule file does not exist: $xmlFile");
}
$xml = simplexml_load_file($xmlFile);
$allRules = array();
$patterns = array(
'/n in 0..1/' => '(n==0||n==1)',
'/\s+is\s+not\s+/i' => '!=', //is not
'/\s+is\s+/i' => '==', //is
'/n\s+mod\s+(\d+)/i' => 'fmod(n,$1)', //mod (CLDR's "mod" is "fmod()", not "%")
'/^(.*?)\s+not\s+in\s+(\d+)\.\.(\d+)/i' => '!in_array($1,range($2,$3))', //not in
'/^(.*?)\s+in\s+(\d+)\.\.(\d+)/i' => 'in_array($1,range($2,$3))', //in
'/^(.*?)\s+not\s+within\s+(\d+)\.\.(\d+)/i' => '($1<$2||$1>$3)', //not within
'/^(.*?)\s+within\s+(\d+)\.\.(\d+)/i' => '($1>=$2&&$1<=$3)', //within
);
foreach ($xml->plurals->pluralRules as $node) {
$attributes = $node->attributes();
$locales = explode(' ', $attributes['locales']);
$rules = array();
if (!empty($node->pluralRule)) {
foreach ($node->pluralRule as $rule) {
$expr_or = preg_split('/\s+or\s+/i', $rule);
foreach ($expr_or as $key_or => $val_or) {
$expr_and = preg_split('/\s+and\s+/i', $val_or);
$expr_and = preg_replace(array_keys($patterns), array_values($patterns), $expr_and);
$expr_or[$key_or] = implode('&&', $expr_and);
}
$expr = preg_replace('/\\bn\\b/', '$n', implode('||', $expr_or));
$rules[] = preg_replace_callback('/range\((\d+),(\d+)\)/', function ($matches) {
if ($matches[2] - $matches[1] <= 5) {
return 'array(' . implode(',', range($matches[1], $matches[2])) . ')';
} else {
return $matches[0];
}
}, $expr);
}
foreach ($locales as $locale) {
$allRules[$locale] = $rules;
}
}
}
// hard fix for "br": the rule is too complex
$allRules['br'] = array(
0 => 'fmod($n,10)==1&&!in_array(fmod($n,100),array(11,71,91))',
1 => 'fmod($n,10)==2&&!in_array(fmod($n,100),array(12,72,92))',
2 => 'in_array(fmod($n,10),array(3,4,9))&&!in_array(fmod($n,100),array_merge(range(10,19),range(70,79),range(90,99)))',
3 => 'fmod($n,1000000)==0&&$n!=0',
);
if (preg_match('/\d+/', $xml->version['number'], $matches)) {
$revision = $matches[0];
} else {
$revision = -1;
}
echo "<?php\n";
echo <<<EOD
/**
* Plural rules.
*
* This file is automatically generated by the "yii locale/plural" command under the "build" folder.
* Do not modify it directly.
*
* The original plural rule data used for generating this file has the following copyright terms:
*
* Copyright © 1991-2007 Unicode, Inc. All rights reserved.
* Distributed under the Terms of Use in http://www.unicode.org/copyright.html.
*
* @revision $revision (of the original plural file)
* @link http://www.yiiframework.com/
* @copyright Copyright (c) 2008 Yii Software LLC
* @license http://www.yiiframework.com/license/
*/
EOD;
echo "\nreturn " . var_export($allRules, true) . ';';
}
}