From c6fd04e9ce0cef1519af77dec6c0f2b0c168fdb8 Mon Sep 17 00:00:00 2001
From: Tom Alexander <tom@fizz.buzz>
Date: Wed, 19 Apr 2023 14:30:02 -0400
Subject: [PATCH] Fix footnote definition end matcher detecting the next
 footnote definition.

---
 src/parser/footnote_definition.rs | 16 +++++++++++++---
 toy_language.txt                  | 13 ++++++++-----
 2 files changed, 21 insertions(+), 8 deletions(-)

diff --git a/src/parser/footnote_definition.rs b/src/parser/footnote_definition.rs
index 6f4fa12..ab07ab6 100644
--- a/src/parser/footnote_definition.rs
+++ b/src/parser/footnote_definition.rs
@@ -83,10 +83,18 @@ fn footnote_definition_end<'r, 's>(
     input: &'s str,
 ) -> Res<&'s str, &'s str> {
     let start_of_line_matcher = parser_with_context!(start_of_line)(context);
-    let footnote_definition_matcher = parser_with_context!(footnote_definition)(context);
+    let allow_nesting_context =
+        context.with_additional_node(ContextElement::Context("allow nesting footnotes"));
+    let footnote_definition_matcher = parser_with_context!(footnote_definition)(
+        if immediate_in_section(context, "footnote definition") {
+            &allow_nesting_context
+        } else {
+            context
+        },
+    );
     let maybe_consume_trailing_whitespace_matcher =
         parser_with_context!(maybe_consume_trailing_whitespace)(context);
-    alt((
+    let (remaining, source) = alt((
         recognize(tuple((
             maybe_consume_trailing_whitespace_matcher,
             footnote_definition_matcher,
@@ -95,7 +103,9 @@ fn footnote_definition_end<'r, 's>(
             start_of_line_matcher,
             verify(many1(blank_line), |lines: &Vec<&str>| lines.len() >= 2),
         ))),
-    ))(input)
+    ))(input)?;
+
+    Ok((remaining, source))
 }
 
 #[cfg(test)]
diff --git a/toy_language.txt b/toy_language.txt
index 8b8048b..0c7d856 100644
--- a/toy_language.txt
+++ b/toy_language.txt
@@ -1,5 +1,8 @@
-:firstdrawer:
-:seconddrawer:
-foo
-:end:
-:end:
+[fn:1] A footnote.
+
+[fn:2] A multi-
+
+line footnote.
+
+
+not in the footnote.