split route and controller parts from smart build

inc/route.php

@@ -0,0 +1,62 @@
+<?php
+
+// vichan's routing mechanism
+
+// don't bother with that unless you use smart build or advanced build
+// you can use those parts for your own implementations though :^)
+
+defined('TINYBOARD') or exit;
+
+function route($path) {
+  $entrypoints = array();
+
+  $entrypoints['/%b/']                       = 'sb_board';
+  $entrypoints['/%b/'.$config['file_index']] = 'sb_board';
+  $entrypoints['/%b/'.$config['file_page']]  = 'sb_board';
+  $entrypoints['/%b/%d.json']                = 'sb_api_board';
+  if ($config['api']['enabled']) {
+    $entrypoints['/%b/threads.json']         = 'sb_api';
+    $entrypoints['/%b/catalog.json']         = 'sb_api';
+  }
+
+  $entrypoints['/%b/'.$config['dir']['res'].$config['file_page']]          = 'sb_thread_slugcheck';
+  $entrypoints['/%b/'.$config['dir']['res'].$config['file_page50']]        = 'sb_thread_slugcheck50';
+  if ($config['slugify']) {
+    $entrypoints['/%b/'.$config['dir']['res'].$config['file_page_slug']]   = 'sb_thread_slugcheck';
+    $entrypoints['/%b/'.$config['dir']['res'].$config['file_page50_slug']] = 'sb_thread_slugcheck50';
+  }
+  if ($config['api']['enabled']) {
+    $entrypoints['/%b/'.$config['dir']['res'].'%d.json']                   = 'sb_thread';
+  }
+
+  $entrypoints['/*/']              = 'sb_ukko';
+  $entrypoints['/*/index.html']    = 'sb_ukko';
+  $entrypoints['/recent.html']     = 'sb_recent';
+  $entrypoints['/%b/catalog.html'] = 'sb_catalog';
+  $entrypoints['/sitemap.xml']     = 'sb_sitemap';
+
+  $reached = false;
+
+  list($request) = explode('?', $path);
+
+  foreach ($entrypoints as $id => $fun) {
+    $id = '@^' . preg_quote($id, '@') . '$@u'; 
+
+    $id = str_replace('%b', '('.$config['board_regex'].')', $id);
+    $id = str_replace('%d', '([0-9]+)',                     $id);
+    $id = str_replace('%s', '[a-zA-Z0-9-]+',                $id);
+
+    $matches = null;
+
+    if (preg_match ($id, $request, $matches)) {
+      array_shift($matches);
+
+      $reached = array($fun, $matches);
+
+      break;
+    }
+  }
+
+  return $reached;
+}
+