Add twig intl date, number and currency filters

diff --git a/Util/IntlUtil.php b/Util/IntlUtil.php
new file mode 100644 (file)
index 0000000..7556838
--- /dev/null
+++ b/Util/IntlUtil.php
@@ -0,0 +1,113 @@
+<?php declare(strict_types=1);
+
+/*
+ * This file is part of the Rapsys PackBundle package.
+ *
+ * (c) Raphaël Gertz <symfony@rapsys.eu>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Rapsys\PackBundle\Util;
+
+use Twig\Error\SyntaxError;
+use Twig\Environment;
+
+/**
+ * Helps manage intl conversions
+ */
+class IntlUtil {
+       /**
+        * Construct intl util
+        */
+       public function __construct() {
+       }
+
+       public function date(Environment $env, $date, $dateFormat = 'medium', $timeFormat = 'medium', $locale = null, $timezone = null, $format = null, $calendar = 'gregorian') {
+               $date = twig_date_converter($env, $date, $timezone);
+
+               $formatValues = array(
+                       'none' => IntlDateFormatter::NONE,
+                       'short' => IntlDateFormatter::SHORT,
+                       'medium' => IntlDateFormatter::MEDIUM,
+                       'long' => IntlDateFormatter::LONG,
+                       'full' => IntlDateFormatter::FULL,
+               );
+
+               $formatter = IntlDateFormatter::create(
+                       $locale,
+                       $formatValues[$dateFormat],
+                       $formatValues[$timeFormat],
+                       IntlTimeZone::createTimeZone($date->getTimezone()->getName()),
+                       'gregorian' === $calendar ? IntlDateFormatter::GREGORIAN : IntlDateFormatter::TRADITIONAL,
+                       $format
+               );
+
+               return $formatter->format($date->getTimestamp());
+       }
+
+       public function number($number, $style = 'decimal', $type = 'default', $locale = null) {
+               static $typeValues = array(
+                       'default' => NumberFormatter::TYPE_DEFAULT,
+                       'int32' => NumberFormatter::TYPE_INT32,
+                       'int64' => NumberFormatter::TYPE_INT64,
+                       'double' => NumberFormatter::TYPE_DOUBLE,
+                       'currency' => NumberFormatter::TYPE_CURRENCY,
+               );
+
+               $formatter = $this->getNumberFormatter($locale, $style);
+
+               if (!isset($typeValues[$type])) {
+                       throw new SyntaxError(sprintf('The type "%s" does not exist. Known types are: "%s"', $type, implode('", "', array_keys($typeValues))));
+               }
+
+               return $formatter->format($number, $typeValues[$type]);
+       }
+
+       public function currency($number, $currency = null, $locale = null) {
+               $formatter = $this->getNumberFormatter($locale, 'currency');
+
+               return $formatter->formatCurrency($number, $currency);
+       }
+
+       /**
+        * Gets a number formatter instance according to given locale and formatter.
+        *
+        * @param string $locale Locale in which the number would be formatted
+        * @param int    $style  Style of the formatting
+        *
+        * @return NumberFormatter A NumberFormatter instance
+        */
+       protected function getNumberFormatter($locale, $style): NumberFormatter {
+               static $formatter, $currentStyle;
+
+               $locale = null !== $locale ? $locale : Locale::getDefault();
+
+               if ($formatter && $formatter->getLocale() === $locale && $currentStyle === $style) {
+                       // Return same instance of NumberFormatter if parameters are the same
+                       // to those in previous call
+                       return $formatter;
+               }
+
+               static $styleValues = array(
+                       'decimal' => NumberFormatter::DECIMAL,
+                       'currency' => NumberFormatter::CURRENCY,
+                       'percent' => NumberFormatter::PERCENT,
+                       'scientific' => NumberFormatter::SCIENTIFIC,
+                       'spellout' => NumberFormatter::SPELLOUT,
+                       'ordinal' => NumberFormatter::ORDINAL,
+                       'duration' => NumberFormatter::DURATION,
+               );
+
+               if (!isset($styleValues[$style])) {
+                       throw new SyntaxError(sprintf('The style "%s" does not exist. Known styles are: "%s"', $style, implode('", "', array_keys($styleValues))));
+               }
+
+               $currentStyle = $style;
+
+               $formatter = NumberFormatter::create($locale, $styleValues[$style]);
+
+               return $formatter;
+       }
+}