ast: Codeblocks should not have extra trailing newlines

Signed-off-by: Daniel Silverstone <dsilvers@digital-scurf.org>

1 files changed, 6 insertions, 0 deletions

diff --git a/src/ast.rs b/src/ast.rs
index 60d234d..2033553 100644
--- a/src/ast.rs
+++ b/src/ast.rs
@@ -188,6 +188,12 @@ fn code_block(kind: &CodeBlockKind, inlines: &mut Vec<Inline>) -> Block {
         let text = plain_text_inline(inline);
         code.push_str(&text);
     }
+    // pulldown_cmark and pandoc differ in their codeblock handling,
+    // pulldown_cmark has an extra newline which we trim for now to be
+    // compatible with pandoc's parsing
+    if !code.is_empty() {
+        assert_eq!(code.pop(), Some('\n'));
+    }
     Block::CodeBlock(attr, code)
 }