Add start of paragraph context.

src/parser/nom_context.rs

@@ -67,6 +67,7 @@ impl<'r, 's> ContextTree<'r, 's> {
                     };
                 }
                 ContextElement::PreviousElementNode(_) => {}
+                ContextElement::StartOfParagraph => {}
             };
 
             current_node = current_node.without_front();
@@ -82,6 +83,7 @@ impl<'r, 's> ContextTree<'r, 's> {
 pub enum ContextElement<'r, 's> {
     FailMatcherNode(FailMatcherNode<'r>),
     PreviousElementNode(PreviousElementNode<'s>),
+    StartOfParagraph,
 }
 
 #[derive(Debug)]

src/parser/text_element_parser.rs

@@ -63,6 +63,7 @@ where
                         current_context = next_context;
                         match context_element {
                             ContextElement::FailMatcherNode(_) => {}
+                            ContextElement::StartOfParagraph => {}
                             ContextElement::PreviousElementNode(PreviousElementNode {
                                 element: token,
                             }) => {
@@ -123,8 +124,9 @@ 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 =
+    let paragraph_context = context
-        context.with_additional_node(ContextElement::FailMatcherNode(FailMatcherNode {
+        .with_additional_node(ContextElement::StartOfParagraph)
+        .with_additional_node(ContextElement::FailMatcherNode(FailMatcherNode {
             fail_matcher: ChainBehavior::AndParent(Some(&paragraph_end)),
         }));
     let (remaining, (many, till)) =