From cb45766216929a28fc21e128f963006f37a1ffb9 Mon Sep 17 00:00:00 2001
From: Andrey Efremov <duxus@yandex.ru>
Date: Tue, 8 Oct 2019 12:16:35 +0700
Subject: [PATCH] FB2 Output: Put line breaks between paragraphs on a separate
 line

---
 src/calibre/ebooks/fb2/fb2ml.py | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/calibre/ebooks/fb2/fb2ml.py b/src/calibre/ebooks/fb2/fb2ml.py
index a5745e1bc2..433db22fa1 100644
--- a/src/calibre/ebooks/fb2/fb2ml.py
+++ b/src/calibre/ebooks/fb2/fb2ml.py
@@ -103,6 +103,10 @@ class FB2MLizer(object):
         if self.opts.insert_blank_line:
             text = re.sub(r'(?miu)</p>', '</p><empty-line/>', text)
 
+        # Put line breaks between paragraphs on a separate line.
+        text = re.sub(r'(?miu)</(p|title)>\s*<empty-line/>', r'</\1>\n<empty-line/>', text)
+        text = re.sub(r'(?miu)<empty-line/>\s*<p>', '<empty-line/>\n<p>', text)
+
         return text
 
     def fb2_header(self):