[Locale] remove support for era (BC|AD)

parsing it is a pain, nobody uses it, BC only works on 64 bit.

src/Symfony/Component/Locale/Stub/DateFormat/EraTransformer.php

@@ -1,36 +0,0 @@
-<?php
-
-/*
- * This file is part of the Symfony package.
- *
- * (c) Fabien Potencier <fabien.potencier@symfony-project.com>
- *
- * For the full copyright and license information, please view the LICENSE
- * file that was distributed with this source code.
- */
-
-namespace Symfony\Component\Locale\Stub\DateFormat;
-
-/**
- * Parser and formatter for date formats
- *
- * @author Igor Wiedler <igor@wiedler.ch>
- */
-class EraTransformer extends Transformer
-{
-    public function format(\DateTime $dateTime, $length)
-    {
-        $year = (int) $dateTime->format('Y');
-        return $year >= 0 ? 'AD' : 'BC';
-    }
-
-    public function getReverseMatchingRegExp($length)
-    {
-        return "AD|BC";
-    }
-
-    public function extractDateOptions($matched, $length)
-    {
-        return array();
-    }
-}

src/Symfony/Component/Locale/Stub/DateFormat/FullTransformer.php

@@ -22,8 +22,8 @@ use Symfony\Component\Locale\Stub\DateFormat\MonthTransformer;
 class FullTransformer
 {
     private $quoteMatch = "'(?:[^']+|'')*'";
-    private $implementedChars = 'MLydGQqhDEaHkKmsz';
-    private $notImplementedChars = 'YuwWFgecSAZvVW';
+    private $implementedChars = 'MLydQqhDEaHkKmsz';
+    private $notImplementedChars = 'GYuwWFgecSAZvVW';
     private $regExp;
 
     private $transformers;
@@ -44,7 +44,6 @@ class FullTransformer
             'L' => new MonthTransformer(),
             'y' => new YearTransformer(),
             'd' => new DayTransformer(),
-            'G' => new EraTransformer(),
             'q' => new QuarterTransformer(),
             'Q' => new QuarterTransformer(),
             'h' => new Hour1201Transformer(),

tests/Symfony/Tests/Component/Locale/Stub/StubIntlDateFormatterTest.php

@@ -57,11 +57,11 @@ class StubIntlDateFormatterTest extends LocaleTestCase
         $formatData = array(
             /* general */
             array('y-M-d', 0, '1970-1-1'),
-            array("yyyy.MM.dd G 'at' HH:mm:ss zzz", 0, '1970.01.01 AD at 00:00:00 GMT+00:00'),
+            array("yyyy.MM.dd 'at' HH:mm:ss zzz", 0, '1970.01.01 at 00:00:00 GMT+00:00'),
             array("EEE, MMM d, ''yy", 0, "Thu, Jan 1, '70"),
             array('h:mm a', 0, '12:00 AM'),
             array('K:mm a, z', 0, '0:00 AM, GMT+00:00'),
-            array('yyyyy.MMMM.dd GGG hh:mm aaa', 0, '01970.January.01 AD 12:00 AM'),
+            array('yyyyy.MMMM.dd hh:mm aaa', 0, '01970.January.01 12:00 AM'),
 
             /* escaping */
             array("'M'", 0, 'M'),
@@ -99,9 +99,6 @@ class StubIntlDateFormatterTest extends LocaleTestCase
             array('dd', 0, '01'),
             array('ddd', 0, '001'),
 
-            /* era */
-            array('G', 0, 'AD'),
-
             /* quarter */
             array('Q', 0, '1'),
             array('QQ', 0, '01'),
@@ -233,14 +230,6 @@ class StubIntlDateFormatterTest extends LocaleTestCase
             array('zzzzz', 0, 'GMT+00:00'),
         );
 
-        // BC era has huge negative unix timestamp
-        // so testing it requires 64bit
-        if ($this->is64Bit()) {
-            $formatData = array_merge($formatData, array(
-                array('G', -62167222800, 'BC'),
-            ));
-        }
-
         return $formatData;
     }