Ran into a lifetime issue.

src/parser/document.rs

@@ -1,12 +1,16 @@
 use nom::branch::alt;
 use nom::bytes::complete::tag;
+use nom::character::complete::line_ending;
+use nom::character::complete::space1;
 use nom::combinator::eof;
 use nom::combinator::recognize;
 use nom::multi::many1_count;
 use nom::sequence::tuple;
 
+use crate::parser::combinator::context_many1;
 use crate::parser::error::CustomError;
 use crate::parser::error::MyError;
+use crate::parser::object::standard_set_object;
 use crate::parser::parser_context::ChainBehavior;
 use crate::parser::parser_context::ContextElement;
 use crate::parser::parser_context::ContextTree;
@@ -82,13 +86,17 @@ fn section_end<'r, 's>(context: Context<'r, 's>, input: &'s str) -> Res<&'s str,
 }
 
 fn heading<'r, 's>(context: Context<'r, 's>, input: &'s str) -> Res<&'s str, Heading<'s>> {
+    todo!()
+}
+
+fn headline<'r, 's>(context: Context<'r, 's>, input: &'s str) -> Res<&'s str, &'s str> {
     let document_root = context.get_document_root().unwrap();
     let preceding_character = get_one_before(document_root, input)
         .map(|slice| slice.chars().next())
         .flatten();
     match preceding_character {
         Some('\n') => {}
-        Some(_) =>  {
+        Some(_) => {
             // Not at start of line, cannot be a heading
             return Err(nom::Err::Error(CustomError::MyError(MyError(
                 "Heading not at start of line",
@@ -98,14 +106,25 @@ fn heading<'r, 's>(context: Context<'r, 's>, input: &'s str) -> Res<&'s str, Hea
         None => {}
     };
 
-    tuple((
+    let parser_context =
+        context.with_additional_node(ContextElement::ExitMatcherNode(ExitMatcherNode {
+            exit_matcher: ChainBehavior::AndParent(Some(&headline_end)),
+        }));
+    let title_matcher = parser_with_context!(context_many1)(&parser_context);
+
+    let foo = tuple((
         many1_count(tag("*")),
-        // standard set of objects
+        space1,
+        title_matcher(standard_set_object),
     ))(input)?;
 
     todo!()
 }
 
+fn headline_end<'r, 's>(context: Context<'r, 's>, input: &'s str) -> Res<&'s str, &'s str> {
+    line_ending(input)
+}
+
 fn get_one_before<'s>(document: &'s str, current_position: &'s str) -> Option<&'s str> {
     assert!(is_slice_of(document, current_position));
     if document.as_ptr() as usize == current_position.as_ptr() as usize {

src/parser/object.rs

@@ -1,4 +1,6 @@
+use super::error::Res;
 use super::source::Source;
+use super::Context;
 
 #[derive(Debug)]
 pub enum Object<'s> {
@@ -31,3 +33,10 @@ impl<'s> Source<'s> for Object<'s> {
         }
     }
 }
+
+pub fn standard_set_object<'r, 's>(
+    context: Context<'r, 's>,
+    input: &'s str,
+) -> Res<&'s str, Object<'s>> {
+    todo!()
+}