Fix if config word_separator is not dash

Fixes #6

Author: rsanchez

system/expressionengine/third_party/structure_nav/libraries/Structure_nav_parser.php

@@ -52,7 +52,9 @@ public function get_variables($add_entry_vars = false)
 
         $dom->loadHTML($html);
 
-        $ul = $dom->getElementById('nav-sub');
+        $separator = ee()->config->item('word_separator') !== 'dash' ? '_' : '-';
+
+        $ul = $dom->getElementById('nav'.$separator.'sub');
 
         $variables = $this->parse_ul($ul);
 
@@ -371,13 +373,15 @@ protected function parse_ul(DOMElement $ul, $depth = 0)
 
         $numLis = count($lis);
 
+        $separator = ee()->config->item('word_separator') !== 'dash' ? '_' : '-';
+
         foreach ($lis as $i => $li)
         {
             $link = $li->firstChild;
 
             $class = $li->getAttribute('class');
 
-            $entry_id = str_replace('nav-sub-', '', $li->getAttribute('id'));
+            $entry_id = str_replace('nav'.$separator.'sub'.$separator, '', $li->getAttribute('id'));
 
             $variables[$i] = array(
                 '__prefix' => $prefix,
@@ -390,7 +394,7 @@ protected function parse_ul(DOMElement $ul, $depth = 0)
                 $prefix.'count' => $i + 1,
                 $prefix.'total_results' => $numLis,
                 $prefix.'active' => !! preg_match('/\bhere\b/', $class),
-                $prefix.'has_active_child' => !! preg_match('/\bparent-here\b/', $class),
+                $prefix.'has_active_child' => !! preg_match('/\bparent'.$separator.'here\b/', $class),
             );
 
             $childUl = $li->getElementsByTagName('ul')->item(0);

system/expressionengine/third_party/structure_nav/pi.structure_nav.php

@@ -14,7 +14,7 @@
 
 $plugin_info = array(
     'pi_name'   => 'Structure Nav',
-    'pi_version'  => '1.0.5',
+    'pi_version'  => '1.0.6',
     'pi_author'   => 'rsanchez',
     'pi_author_url' => 'https://github.com/rsanchez',
     'pi_description'=> 'Tag pair for custom Structure navigation',