Optimize markdown display, leave a blank line before and after code b…

…locks.

.gitignore

@@ -0,0 +1,2 @@
+build
+*.egg-info

setup.py

@@ -4,7 +4,7 @@
 
 setup(
     name="md2tgmd",
-    version="0.2.3",
+    version="0.2.4",
     description="md2tgmd is a Markdown to Telegram-specific-markdown converter.",
     long_description=Path.open(Path("README.md"), encoding="utf-8").read(),
     long_description_content_type="text/markdown",

src/md2tgmd.py

@@ -51,7 +51,7 @@ def escape_all_backquote(text):
 
 def dedent_space(text):
     import textwrap
-    return textwrap.dedent(text)
+    return "\n\n" + textwrap.dedent(text).strip() + "\n\n"
 
 def find_lines_with_char(s, char, min_count):
     """
@@ -138,7 +138,7 @@ def escape(text, flag=0):
     text = re.sub(r"\.", '\.', text)
     text = re.sub(r"!", '\!', text)
     text = find_lines_with_char(text, '`', 5)
-    text = replace_all(text, r"(\x20*```[\D\d\s]+?```)", dedent_space)
+    text = replace_all(text, r"(\n+\x20*```[\D\d\s]+?```\n+)", dedent_space)
     return text
 
 text = r'''
@@ -173,17 +173,17 @@ def escape(text, flag=0):
 2. item 2
 
 1. item 1
-2. item 2
-
-sudo apt install mesa-utils # 安装
-
 ```python
 
 # comment
 print("1.1\n")_
 \subsubsection{1.1}
 - item 1 -
 ```
+2. item 2
+
+sudo apt install mesa-utils # 安装
+
 \subsubsection{1.1}
 
 And simple text `with-ten`  `with+ten` + some - **symbols**. # `with-ten`里面的`-`不会被转义