some initial lang work

system/config/system.yaml

@@ -5,6 +5,10 @@ param_sep: ':'                         # Parameter separator, use ';' for Apache
 home:
   alias: '/home'                       # Default path for home, ie /
 
+languages:
+    en: English
+    fr: French
+
 pages:
   theme: antimatter                    # Default theme (defaults to "antimatter" theme)
   order:
@@ -32,7 +36,7 @@ pages:
       '<': 'lt'
   types: 'txt|xml|html|json|rss|atom'  # Pipe separated list of valid page types
   expires: 0                           # Page expires time in seconds (604800 seconds = 7 days)
-  last_modified: false                 # Set the last modified date header based on file modification timestamp
+  last_modified: false                 # Set the last modified date header based on file modifcation timestamp
   etag: false                          # Set the etag header tag
 
 cache:
@@ -79,7 +83,7 @@ images:
   debug: false                         # Show an overlay over images indicating the pixel depth of the image when working with retina for example
 
 media:
-  enable_media_timestamp: false        # Enable media timestamps
+  enable_media_timestamp: false        # Enable media timetsamps
   upload_limit: 0                      # Set maximum upload size in bytes (0 is unlimited)
 
 security:

system/src/Grav/Common/Filesystem/Folder.php

@@ -38,12 +38,12 @@ abstract class Folder
      * Recursively find the last modified time under given path by file.
      *
      * @param  string $path
+     * @param string  $extensions
+     *
      * @return int
      */
-    public static function lastModifiedFile($path)
+    public static function lastModifiedFile($path, $extensions = 'md|yaml')
     {
-        // pipe separated list of extensions to search for changes with
-        $extensions = 'md|yaml';
         $last_modified = 0;
 
         $dirItr = new \RecursiveDirectoryIterator($path, \RecursiveDirectoryIterator::SKIP_DOTS);

system/src/Grav/Common/Grav.php

@@ -55,6 +55,8 @@ class Grav extends Container
 
         $container['grav'] = $container;
 
+
+
         $container['debugger'] = new Debugger();
         $container['debugger']->startTimer('_init', 'Initialize');
 
@@ -88,12 +90,16 @@ class Grav extends Container
         $container['taxonomy'] = function ($c) {
             return new Taxonomy($c);
         };
+        $container['language'] = function ($c) {
+            return new Language($c);
+        };
+
         $container['pages'] = function ($c) {
             return new Page\Pages($c);
         };
-        $container['assets'] = function ($c) {
-            return new Assets();
-        };
+
+        $container['assets'] = new Assets();
+
         $container['page'] = function ($c) {
             /** @var Pages $pages */
             $pages = $c['pages'];

system/src/Grav/Common/Language.php

@@ -0,0 +1,58 @@
+<?php
+namespace Grav\Common;
+
+/**
+ * Contain some useful language functions
+ */
+class Language
+{
+    protected $languages = [];
+    protected $default_key;
+    protected $default_lang;
+    protected $active_key;
+    protected $active_lang;
+
+    public function __construct(Grav $grav)
+    {
+        $this->languages = $grav['config']->get('system.languages', []);
+        $this->default_key = key($this->languages);
+        $this->default_lang = reset($this->languages);
+
+    }
+
+    public function setLanguage($key)
+    {
+        if (array_key_exists($key, $this->languages)) {
+            $this->active_key = $key;
+            $this->active_lang = $this->languages[$key];
+            return true;
+        }
+        return false;
+    }
+
+    public function getAvailableKeys()
+    {
+        return implode('|', array_keys($this->languages));
+    }
+
+    public function getDefaultKey()
+    {
+        return $this->default_key;
+    }
+
+    public function getDefaultLanguage()
+    {
+        return $this->default_lang;
+    }
+
+    public function getActiveKey()
+    {
+        return $this->active_key;
+    }
+
+    public function getActiveLanguage()
+    {
+        return $this->active_lang;
+    }
+
+}

system/src/Grav/Common/Page/Pages.php

@@ -6,6 +6,7 @@ use Grav\Common\Config\Config;
 use Grav\Common\Utils;
 use Grav\Common\Cache;
 use Grav\Common\Taxonomy;
+use Grav\Common\Language;
 use Grav\Common\Data\Blueprint;
 use Grav\Common\Data\Blueprints;
 use Grav\Common\Filesystem\Folder;
@@ -61,6 +62,10 @@ class Pages
      */
     protected $last_modified;
 
+
+    protected $default_lang;
+    protected $page_extension;
+
     /**
      * @var Types
      */
@@ -75,6 +80,8 @@ class Pages
     {
         $this->grav = $c;
         $this->base = '';
+        $this->default_lang = $c['language']->getDefaultKey();
+        $this->page_extension = '.' . $this->default_lang ? $this->default_lang . CONTENT_EXT : CONTENT_EXT;
     }
 
     /**
@@ -572,7 +579,7 @@ class Pages
                     $last_modified = $modified;
                 }
 
-                if (preg_match('/^[^.].*'.CONTENT_EXT.'$/', $name)) {
+                if (preg_match('/^[^.].*'.$this->page_extension.'$/', $name)) {
                     $page->init($file);
                     $content_exists = true;
 

system/src/Grav/Common/Uri.php

@@ -73,6 +73,7 @@ class Uri
     public function init()
     {
         $config = Grav::instance()['config'];
+        $language = Grav::instance()['language'];
 
         // resets
         $this->paths = [];
@@ -86,6 +87,13 @@ class Uri
         // process params
         $uri = $this->processParams($uri, $config->get('system.param_sep'));
 
+        $regex = '/(\/(?:'.$language->getAvailablekeys().')\/).*/';
+
+        if (preg_match($regex, $uri, $matches)) {
+            $uri = preg_replace("/\\".$matches[1]."/", '', $matches[0], 1);
+            $lang = $matches[2];
+        }
+
         // split the URL and params
         $bits = parse_url($uri);