[1.5.0] Add rudimentary I18N and L10N support based off MediaWiki

- Also: allow 'x' subtag in language codes

git-svn-id: http://htmlpurifier.org/svnroot/htmlpurifier/trunk@701 48356398-32a2-884e-a903-53898d9a118a

tests/HTMLPurifier/AttrDef/LangTest.php

@@ -54,6 +54,8 @@ class HTMLPurifier_AttrDef_LangTest extends HTMLPurifier_AttrDefHarness
             // Also note that this test-case tests fix-behavior: chop
             // off subtags until you get a valid language code.
         $this->assertDef('en-a', 'en');
+            // however, x is a reserved single-letter subtag that is allowed
+        $this->assertDef('en-x', 'en-x');
             // 2-8 chars are permitted, but have special meaning that cannot
             // be checked without maintaining country code lookup tables (for
             // two characters) or special registration tables (for all above).

tests/HTMLPurifier/LanguageFactoryTest.php

@@ -0,0 +1,47 @@
+<?php
+
+require_once 'HTMLPurifier/LanguageFactory.php';
+
+class HTMLPurifier_LanguageFactoryTest extends UnitTestCase
+{
+    
+    function test() {
+        
+        $factory = HTMLPurifier_LanguageFactory::instance();
+        
+        $language = $factory->create('en');
+        
+        $this->assertIsA($language, 'HTMLPurifier_Language');
+        $this->assertEqual($language->code, 'en');
+        
+        // lazy loading test
+        $this->assertEqual(count($language->messages), 0);
+        $language->load();
+        $this->assertNotEqual(count($language->messages), 0);
+        
+        // actual tests for content can be found in LanguageTest
+        
+    }
+    
+    function testFallback() {
+        
+        $factory = HTMLPurifier_LanguageFactory::instance();
+        
+        $language = $factory->create('en-x-test');
+        
+        $this->assertIsA($language, 'HTMLPurifier_Language_en_x_test');
+        $this->assertEqual($language->code, 'en-x-test');
+        
+        $language->load();
+        
+        // test overloaded message
+        $this->assertEqual($language->getMessage('htmlpurifier'), 'HTML Purifier X');
+        
+        // test inherited message
+        $this->assertEqual($language->getMessage('pizza'), 'Pizza');
+        
+    }
+    
+}
+
+?>

tests/HTMLPurifier/LanguageTest.php

@@ -0,0 +1,22 @@
+<?php
+
+require_once 'HTMLPurifier/Language.php';
+
+class HTMLPurifier_LanguageTest extends UnitTestCase
+{
+    
+    var $lang;
+    
+    function setup() {
+        $factory = HTMLPurifier_LanguageFactory::instance();
+        $this->lang = $factory->create('en');
+    }
+    
+    function test_getMessage() {
+        $this->assertIdentical($this->lang->getMessage('htmlpurifier'), 'HTML Purifier');
+        $this->assertIdentical($this->lang->getMessage('totally-non-existent-key'), '');
+    }
+    
+}
+
+?>