Use plugin init without callback

Signed-off-by: Sebastian Ramacher <sebastian@ramacher.at>

plugin.c

@@ -2,31 +2,27 @@
 
 #include "plugin.h"
 
-static void
-register_functions(zathura_plugin_functions_t* functions)
-{
-  functions->document_open            = pdf_document_open;
-  functions->document_free            = pdf_document_free;
-  functions->document_index_generate  = pdf_document_index_generate;
-  functions->document_save_as         = pdf_document_save_as;
-  functions->document_attachments_get = pdf_document_attachments_get;
-  functions->document_attachment_save = pdf_document_attachment_save;
-  functions->document_get_information = pdf_document_get_information;
-  functions->page_init                = pdf_page_init;
-  functions->page_clear               = pdf_page_clear;
-  functions->page_search_text         = pdf_page_search_text;
-  functions->page_links_get           = pdf_page_links_get;
-  functions->page_form_fields_get     = pdf_page_form_fields_get;
-  functions->page_images_get          = pdf_page_images_get;
-  functions->page_get_text            = pdf_page_get_text;
-  functions->page_render_cairo        = pdf_page_render_cairo;
-  functions->page_image_get_cairo     = pdf_page_image_get_cairo;
-}
-
-ZATHURA_PLUGIN_REGISTER(
+ZATHURA_PLUGIN_REGISTER_WITH_FUNCTIONS(
   "pdf-poppler",
   VERSION_MAJOR, VERSION_MINOR, VERSION_REV,
-  register_functions,
+  ZATHURA_PLUGIN_FUNCTIONS({
+    .document_open            = pdf_document_open,
+    .document_free            = pdf_document_free,
+    .document_index_generate  = pdf_document_index_generate,
+    .document_save_as         = pdf_document_save_as,
+    .document_attachments_get = pdf_document_attachments_get,
+    .document_attachment_save = pdf_document_attachment_save,
+    .document_get_information = pdf_document_get_information,
+    .page_init                = pdf_page_init,
+    .page_clear               = pdf_page_clear,
+    .page_search_text         = pdf_page_search_text,
+    .page_links_get           = pdf_page_links_get,
+    .page_form_fields_get     = pdf_page_form_fields_get,
+    .page_images_get          = pdf_page_images_get,
+    .page_get_text            = pdf_page_get_text,
+    .page_render_cairo        = pdf_page_render_cairo,
+    .page_image_get_cairo     = pdf_page_image_get_cairo
+  }),
   ZATHURA_PLUGIN_MIMETYPES({
     "application/pdf"
   })