Read the setup file into memory.

src/parser/document.rs

@@ -33,6 +33,7 @@ use crate::context::ExitMatcherNode;
 use crate::context::GlobalSettings;
 use crate::context::List;
 use crate::context::RefContext;
+use crate::error::CustomError;
 use crate::error::Res;
 use crate::parser::comment::comment;
 use crate::parser::element_parser::element;
@@ -82,6 +83,12 @@ fn document_org_source<'b, 'g, 'r, 's>(
     let setup_file = scan_for_setup_file(input);
     if setup_file.is_ok() {
         let (_remaining, setup_file) = setup_file.expect("If-statement proves this is okay.");
+        let setup_file_contents = context
+            .get_global_settings()
+            .file_access
+            .read_file(Into::<&str>::into(setup_file))
+            .map_err(|err| nom::Err::<CustomError<OrgSource<'_>>>::Failure(err.into()))?;
+
         println!("TODO: Process setup_file: {}", setup_file);
     }
     let (remaining, document) =

src/parser/org_source.rs

@@ -318,6 +318,7 @@ impl<'s> From<CustomError<OrgSource<'s>>> for CustomError<&'s str> {
         match value {
             CustomError::MyError(err) => CustomError::MyError(err.into()),
             CustomError::Nom(input, error_kind) => CustomError::Nom(input.into(), error_kind),
+            CustomError::IO(err) => CustomError::IO(err),
         }
     }
 }