From 972ffa63455abdb209c540d6e1653284c75e3457 Mon Sep 17 00:00:00 2001
From: Tom Alexander <tom@fizz.buzz>
Date: Sun, 11 Dec 2022 00:21:30 -0500
Subject: [PATCH] Add start of paragraph context.

---
 src/parser/nom_context.rs         | 2 ++
 src/parser/text_element_parser.rs | 6 ++++--
 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/src/parser/nom_context.rs b/src/parser/nom_context.rs
index c195ae3..5fa6f97 100644
--- a/src/parser/nom_context.rs
+++ b/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)]
diff --git a/src/parser/text_element_parser.rs b/src/parser/text_element_parser.rs
index 408ce72..1e259bf 100644
--- a/src/parser/text_element_parser.rs
+++ b/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 =
-        context.with_additional_node(ContextElement::FailMatcherNode(FailMatcherNode {
+    let paragraph_context = context
+        .with_additional_node(ContextElement::StartOfParagraph)
+        .with_additional_node(ContextElement::FailMatcherNode(FailMatcherNode {
             fail_matcher: ChainBehavior::AndParent(Some(&paragraph_end)),
         }));
     let (remaining, (many, till)) =