I may need to switch to boxes.

src/parser/nom_context.rs

@@ -18,7 +18,7 @@ pub trait OrgModeContext<'r> {
     fn get_fail_matcher(&'r self) -> Cow<ChainBehavior<'r>>;
 }
 
-struct FailMatcherNode<'r> {
+pub struct FailMatcherNode<'r> {
     fail_matcher: ChainBehavior<'r>,
 }
 
@@ -98,15 +98,6 @@ impl<'r> ContextTree<'r, dyn OrgModeContext<'r>> {
             ErrorKind::ManyTill,
         )));
     }
-
-    pub fn with_additional_fail_matcher(
-        &'r self,
-        fail_matcher: &'r Matcher,
-    ) -> OrgModeContextTree<'r> {
-        self.with_additional_node(FailMatcherNode {
-            fail_matcher: ChainBehavior::AndParent(Some(fail_matcher)),
-        })
-    }
 }
 
 impl<'r> OrgModeContext<'r> for FailMatcherNode<'r> {
@@ -121,6 +112,14 @@ impl<'r> OrgModeContext<'r> for PreviousElementNode<'r> {
     }
 }
 
+impl<'r> FailMatcherNode<'r> {
+    pub fn additional(fail_matcher: &'r Matcher) -> Self {
+        FailMatcherNode {
+            fail_matcher: ChainBehavior::AndParent(Some(fail_matcher)),
+        }
+    }
+}
+
 fn recognize_bold_end(input: &str) -> Res<&str, &str> {
     recognize(bold_end)(input)
 }

src/parser/text_element_parser.rs

@@ -6,6 +6,7 @@ use crate::parser::parser_with_context::parser_with_context;
 use crate::parser::text::paragraph_end;
 
 use super::nom_context::ContextTree;
+use super::nom_context::FailMatcherNode;
 use super::nom_context::OrgModeContextTree;
 use super::text::bold_end;
 use super::text::bold_start;
@@ -92,7 +93,8 @@ pub fn paragraph<'s, 'r>(
 ) -> Res<&'s str, (Vec<TextElement<'s>>, &'s str)> {
     // Add a not(eof) check because many_till cannot match a zero-length string
     not(eof)(i)?;
-    let paragraph_context = context.with_additional_fail_matcher(&paragraph_end);
+    let fail_matcher_node = FailMatcherNode::additional(&paragraph_end);
+    let paragraph_context = context.with_additional_node(&fail_matcher_node);
     let text_element_parser = parser_with_context!(flat_text_element)(&paragraph_context);
     let ret = context_many_till(&paragraph_context, text_element_parser, paragraph_end)(i);
     // let ret = many_till(text_element_parser, paragraph_end)(i);
@@ -125,7 +127,8 @@ fn recognize_bold_end(input: &str) -> Res<&str, &str> {
 }
 
 fn flat_bold<'s, 'r>(context: &'r OrgModeContextTree<'r>, i: &'s str) -> Res<&'s str, Bold<'s>> {
-    let new_context = context.with_additional_fail_matcher(&recognize_bold_end);
+    let fail_matcher_node = FailMatcherNode::additional(&recognize_bold_end);
+    let new_context = context.with_additional_node(&fail_matcher_node);
     let text_element_parser = parser_with_context!(flat_text_element)(&new_context);
     let (remaining, captured) = recognize(tuple((
         bold_start,
@@ -140,7 +143,8 @@ fn recognize_link_end(input: &str) -> Res<&str, &str> {
 }
 
 fn flat_link<'s, 'r>(context: &'r OrgModeContextTree<'r>, i: &'s str) -> Res<&'s str, Link<'s>> {
-    let new_context = context.with_additional_fail_matcher(&recognize_link_end);
+    let fail_matcher_node = FailMatcherNode::additional(&recognize_link_end);
+    let new_context = context.with_additional_node(&fail_matcher_node);
     let text_element_parser = parser_with_context!(flat_text_element)(&new_context);
     let (remaining, captured) = recognize(tuple((
         link_start,