Change regional language codes (#8065)

* Change regional language codes

According to `ISO-639-1` and `ISO-3166-1 alpha-2` recommendations, regional
languages must be written with the language code in lowercase and the region
in uppercase. For instance, we should have `en-US` instead of `en-us`.

Folders have been updated to reflect those recommendations and regional
language codes have been updated in the translation files.

* Update README files

* Fix configuration for typos

* Revert language order in documentation

* Remove unnecessary code

* Change language configuration getter

* Fix phpstan error

* Fix typo

* Add types

* escape regex

* Move language logic to avoid magic or deprecated methods

* Minor fix on regex

1 files changed, 33 insertions, 0 deletions

diff --git a/app/i18n/pt-BR/api.php b/app/i18n/pt-BR/api.php
new file mode 100644
index 000000000..0021dfa98
--- /dev/null
+++ b/app/i18n/pt-BR/api.php
@@ -0,0 +1,33 @@
+<?php
+
+/******************************************************************************
+ * Each entry of that file can be associated with a comment to indicate its   *
+ * state. When there is no comment, it means the entry is fully translated.   *
+ * The recognized comments are (comment matching is case-insensitive):        *
+ *   + TODO: the entry has never been translated.                             *
+ *   + DIRTY: the entry has been translated but needs to be updated.          *
+ *   + IGNORE: the entry does not need to be translated.                      *
+ * When a comment is not recognized, it is discarded.                         *
+ ******************************************************************************/
+
+return array(
+	'information' => array(
+		'address' => 'Your API address:',	// TODO
+		'output' => array(
+			'encoding-support' => '⚠️ WARN: no <code>%2F</code> support, some clients might not work!',	// TODO
+			'invalid-configuration' => '⚠️ WARN: Probable invalid base URL in ./data/config.php',	// TODO
+			'pass' => '✔️ PASS',	// TODO
+			'unknown-error' => '❌ ',	// TODO
+		),
+		'test' => array(
+			'fever' => 'Fever API configuration test:',	// TODO
+			'greader' => 'Google Reader API configuration test:',	// TODO
+		),
+		'title' => array(
+			'_' => 'FreshRSS API endpoints',	// TODO
+			'extension' => 'API for extensions',	// TODO
+			'fever' => 'Fever compatible API',	// TODO
+			'greader' => 'Google Reader compatible API',	// TODO
+		),
+	),
+);