From a640890cad9621a94362e8c7c97bc031cf3b3cc1 Mon Sep 17 00:00:00 2001
From: Natty <natty.sh.git@gmail.com>
Date: Wed, 13 Mar 2024 14:31:05 +0100
Subject: [PATCH] Fixed an edge case in strict flanking rules

---
 magnetar_mmm_parser/src/lib.rs | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/magnetar_mmm_parser/src/lib.rs b/magnetar_mmm_parser/src/lib.rs
index 919ebd7..19a9235 100644
--- a/magnetar_mmm_parser/src/lib.rs
+++ b/magnetar_mmm_parser/src/lib.rs
@@ -1027,7 +1027,7 @@ impl Context {
                     alphanumeric1_unicode,
                     opt(tag("\\")),
                     &opening_tag,
-                    peek(not(alt((space1_unicode, eof)))),
+                    peek(not(alt((recognize(satisfy(|c| c.is_whitespace())), eof)))),
                 ))))(input)?;
 
                 if let Some(pre_text) = pre {
@@ -1909,6 +1909,15 @@ mod test {
             Token::PlainText("aaa_nnn_bbb".into())
         );
 
+        assert_eq!(
+            parse_full("aaa\n_iii_\nbbb"),
+            Token::Sequence(vec![
+                Token::PlainText("aaa\n".into()),
+                Token::Italic(Box::new(Token::PlainText("iii".into()))),
+                Token::PlainText("\nbbb".into())
+            ])
+        );
+
         assert_eq!(
             parse_full(r#"*iii*"#),
             Token::Italic(Box::new(Token::PlainText("iii".into())))