WIP Add settings to hide backlink text.

bibcite_footnotes.module

@@ -57,7 +57,8 @@ function bibcite_footnotes_preprocess_footnote_list(&$variables) {
 
   ];
   $references['#attached']['library'][] = 'bibcite_footnotes/reference_footnote';
-
+  $dont_show_backlink_text = $config->get('filters.filter_reference_footnotes.settings.reference_dont_show_backlink_text');
+  $sort_references_by = $config->get('filters.filter_reference_footnotes.settings.reference_sort_by');
   $serializer = \Drupal::service('serializer');
 
   foreach ($footnotes as $fn) {
@@ -68,12 +69,15 @@ function bibcite_footnotes_preprocess_footnote_list(&$variables) {
       ],
     ];
     $build = [];
+    preg_match('/\[bibcite_reference:(\d*)\]/', $fn['text'], $matches);
+    $reference_entity_id = $matches[1];
+
     if (!is_array($fn['ref_id'])) {
       // Output normal footnote.
 
 
       $url = Url::fromUserInput('#' . $fn['ref_id'], ['attributes' => ['id' => $fn['fn_id'], 'class' => 'footnote-link']]);
-      $link = Link::fromTextAndUrl($fn['value'], $url)->toRenderable();
+      $link = Link::fromTextAndUrl(($dont_show_backlink_text && $reference_entity_id ? '^' : $fn['value']), $url)->toRenderable();
       $build[] = $link;
     }
     else {
@@ -95,8 +99,6 @@ function bibcite_footnotes_preprocess_footnote_list(&$variables) {
 
     }
 
-    preg_match('/\[bibcite_reference:(\d*)\]/', $fn['text'], $matches);
-    $reference_entity_id = $matches[1];
     if (!empty($reference_entity_id)) {
       $reference_storage = \Drupal::entityTypeManager()
         ->getStorage('bibcite_reference')

src/Plugin/Filter/ReferenceFootnotesFilter.php

@@ -78,7 +78,22 @@ class ReferenceFootnotesFilter extends FootnotesFilter {
       '#type' => 'textfield',
       '#title' => $this->t('References section label'),
       '#description' => $this->t('E.g., "Works Cited" for MLA style.'),
-      '#default_value' =>  $this->settings['references_section_label'],
+      '#default_value' => $this->settings['references_section_label'],
+    ];
+    $settings['reference_dont_show_backlink_text'] = [
+      '#type' => 'checkbox',
+      '#title' => $this->t("Don't show note 'value' text in reference list."),
+      '#description' => $this->t("Suitable for MLA-style citations, like (Smith, 33-22)"),
+      '#default_value' => $this->settings['reference_dont_show_backlink_text'],
+    ];
+    $settings['reference_sort_by'] = [
+      '#type' => 'select',
+      '#title' => $this->t("Sort references list by"),
+      '#options' => [
+        'appearance' => $this->t("Appearance in text"),
+        'contributor_surname' => $this->t("Contributor surname"),
+      ],
+      '#default_value' => $this->settings['reference_sort_by'],
     ];
     return $settings;
   }