Create structure for footnote references.

src/parser/object_parser.rs

@@ -10,6 +10,7 @@ use crate::error::Res;
 use crate::parser::angle_link::angle_link;
 use crate::parser::entity::entity;
 use crate::parser::export_snippet::export_snippet;
+use crate::parser::footnote_reference::footnote_reference;
 use crate::parser::latex_fragment::latex_fragment;
 use crate::parser::object::Object;
 use crate::parser::org_macro::org_macro;
@@ -23,10 +24,14 @@ pub fn standard_set_object<'r, 's>(
     context: Context<'r, 's>,
     input: &'s str,
 ) -> Res<&'s str, Object<'s>> {
-    // TODO: footnote references, citations (NOT citation references), inline babel calls, inline source blocks, line breaks, links, macros, targets and radio targets, statistics cookies, subscript and superscript, timestamps, and text markup.
+    // TODO: citations (NOT citation references), inline babel calls, inline source blocks, line breaks, links, macros, targets and radio targets, statistics cookies, subscript and superscript, timestamps, and text markup.
     not(|i| context.check_exit_matcher(i))(input)?;
 
     alt((
+        map(
+            parser_with_context!(footnote_reference)(context),
+            Object::FootnoteReference,
+        ),
         map(
             parser_with_context!(export_snippet)(context),
             Object::ExportSnippet,
@@ -79,6 +84,10 @@ pub fn any_object_except_plain_text<'r, 's>(
 ) -> Res<&'s str, Object<'s>> {
     // Used for exit matchers so this does not check exit matcher condition.
     alt((
+        map(
+            parser_with_context!(footnote_reference)(context),
+            Object::FootnoteReference,
+        ),
         map(
             parser_with_context!(export_snippet)(context),
             Object::ExportSnippet,