From ddfbf6a3642aba2386052fa7c4592a3709da6672 Mon Sep 17 00:00:00 2001
From: Jiulong Wang <jiulongw@gmail.com>
Date: Mon, 10 May 2021 15:55:28 -0700
Subject: [PATCH] Keep important spaces in <li> element

---
 markdownify/__init__.py   | 14 +++++++++++---
 tests/test_conversions.py |  2 +-
 2 files changed, 12 insertions(+), 4 deletions(-)

diff --git a/markdownify/__init__.py b/markdownify/__init__.py
index 5c3b258..6230fb8 100644
--- a/markdownify/__init__.py
+++ b/markdownify/__init__.py
@@ -85,9 +85,17 @@ class MarkdownConverter(object):
             convert_children_as_inline = True
 
         # Remove whitespace-only textnodes in lists
-        if node.name in ['ol', 'ul', 'li']:
+        def is_list_node(el):
+            return el and el.name in ['ol', 'ul', 'li']
+
+        if is_list_node(node):
             for el in node.children:
-                if isinstance(el, NavigableString) and six.text_type(el).strip() == '':
+                # Only extract (remove) whitespace-only text node if any of the conditions is true:
+                # - el is the first element in its parent
+                # - el is the last element in its parent
+                # - el is adjacent to an list node
+                can_extract = not el.previous_sibling or not el.next_sibling or is_list_node(el.previous_sibling) or is_list_node(el.next_sibling)
+                if isinstance(el, NavigableString) and six.text_type(el).strip() == '' and can_extract:
                     el.extract()
 
         # Convert the children first
@@ -111,7 +119,7 @@ class MarkdownConverter(object):
         # remove trailing whitespaces if any of the following condition is true:
         # - current text node is the last node in li
         # - current text node is followed by an embedded list
-        if el.parent.name == 'li' and (not el.next_sibling or el.next_sibling.name in ["ul", "ol"]):
+        if el.parent.name == 'li' and (not el.next_sibling or el.next_sibling.name in ['ul', 'ol']):
             return escape(all_whitespace_re.sub(' ', text or '')).rstrip()
         return escape(whitespace_re.sub(' ', text or ''))
 
diff --git a/tests/test_conversions.py b/tests/test_conversions.py
index 9d0cd63..6663204 100644
--- a/tests/test_conversions.py
+++ b/tests/test_conversions.py
@@ -309,7 +309,7 @@ def test_bullets():
 
 
 def test_li_text():
-    assert md('<ul><li>foo <a href="#">bar</a></li><li>foo bar  </li></ul>') == '* foo [bar](#)\n* foo bar\n'
+    assert md('<ul><li>foo <a href="#">bar</a></li><li>foo bar  </li><li>foo <b>bar</b>   <i>space</i>.</ul>') == '* foo [bar](#)\n* foo bar\n* foo **bar** *space*.\n'
 
 
 def test_img():