Merge branch 'plain_list_content_on_next_line'

org_mode_samples/greater_element/plain_list/content_on_next_line.org

@@ -0,0 +1,7 @@
+1. foo
+2.
+     bar
+   1.
+       #+begin_center
+Still in the list
+       #+end_center

src/compare/util.rs

@@ -47,9 +47,7 @@ pub fn assert_bounds<'s, S: Source<'s>>(
         standard_properties
             .begin
             .ok_or("Token should have a begin.")?,
-        standard_properties
-            .end
-            .ok_or("Token should have a begin.")?,
+        standard_properties.end.ok_or("Token should have an end.")?,
     );
     let (rust_begin, rust_end) = get_offsets(source, rust);
     if (rust_begin + 1) != begin || (rust_end + 1) != end {

src/parser/plain_list.rs

@@ -37,9 +37,13 @@ pub fn detect_plain_list<'r, 's>(
     _context: Context<'r, 's>,
     input: OrgSource<'s>,
 ) -> Res<OrgSource<'s>, ()> {
-    // TODO: Add support for plain list items that do not have content on the first line.
     if verify(
-        tuple((start_of_line, space0, bullet, space1)),
+        tuple((
+            start_of_line,
+            space0,
+            bullet,
+            alt((space1, line_ending, eof)),
+        )),
         |(_start, indent, bull, _after_whitespace)| {
             Into::<&str>::into(bull) != "*" || indent.len() > 0
         },
@@ -135,8 +139,7 @@ pub fn plain_list_item<'r, 's>(
     })(remaining)?;
 
     // TODO: This isn't taking into account items that immediately line break and then have contents
-    let maybe_contentless_item: Res<OrgSource<'_>, OrgSource<'_>> =
-        alt((eof, line_ending))(remaining);
+    let maybe_contentless_item: Res<OrgSource<'_>, OrgSource<'_>> = eof(remaining);
     match maybe_contentless_item {
         Ok((rem, _ws)) => {
             let source = get_consumed(input, rem);
@@ -153,7 +156,7 @@ pub fn plain_list_item<'r, 's>(
         Err(_) => {}
     };
 
-    let (remaining, _ws) = space1(remaining)?;
+    let (remaining, _ws) = alt((space1, line_ending))(remaining)?;
     let exit_matcher = plain_list_item_end(indent_level);
     let parser_context = context
         .with_additional_node(ContextElement::ConsumeTrailingWhitespace(true))
@@ -162,12 +165,9 @@ pub fn plain_list_item<'r, 's>(
             exit_matcher: &exit_matcher,
         }));
 
-    let (remaining, (children, _exit_contents)) = verify(
-        many_till(
-            parser_with_context!(element(true))(&parser_context),
-            parser_with_context!(exit_matcher_parser)(&parser_context),
-        ),
-        |(children, _exit_contents)| !children.is_empty(),
+    let (remaining, (children, _exit_contents)) = many_till(
+        parser_with_context!(element(true))(&parser_context),
+        parser_with_context!(exit_matcher_parser)(&parser_context),
     )(remaining)?;
 
     let (remaining, _trailing_ws) =
@@ -419,4 +419,40 @@ dolar"#,
 "#
         );
     }
+
+    #[test]
+    fn detect_line_break() {
+        let input = OrgSource::new(
+            r#"+
+"#,
+        );
+        let initial_context: ContextTree<'_, '_> = ContextTree::new();
+        let result = detect_plain_list(&initial_context, input);
+        assert!(result.is_ok());
+    }
+
+    #[test]
+    fn detect_eof() {
+        let input = OrgSource::new(r#"+"#);
+        let initial_context: ContextTree<'_, '_> = ContextTree::new();
+        let result = detect_plain_list(&initial_context, input);
+        assert!(result.is_ok());
+    }
+
+    #[test]
+    fn detect_no_gap() {
+        let input = OrgSource::new(r#"+foo"#);
+        let initial_context: ContextTree<'_, '_> = ContextTree::new();
+        let result = detect_plain_list(&initial_context, input);
+        // Since there is no whitespace after the '+' this is a paragraph, not a plain list.
+        assert!(result.is_err());
+    }
+
+    #[test]
+    fn detect_with_gap() {
+        let input = OrgSource::new(r#"+ foo"#);
+        let initial_context: ContextTree<'_, '_> = ContextTree::new();
+        let result = detect_plain_list(&initial_context, input);
+        assert!(result.is_ok());
+    }
 }