Optimize regex patterns by pre-compiling them.

crazy_functions/latex_fns/latex_actions.py

@@ -100,7 +100,8 @@ class LatexPaperSplit():
         
         残存BUG: 未考虑\\\\[length]"""
         text = text.replace('\\\\', ' ')
-        return re.sub(r'\s+', ' ', text)
+        pattern = re.compile(r'\s+')
+        return re.sub(pattern, ' ', text)
 
     def read_title_and_abstract(self, txt: str):
         try:

crazy_functions/latex_fns/latex_toolbox.py

@@ -333,7 +333,8 @@ def find_main_tex_file(file_manifest, mode):
 
 def rm_comments_inline(content: str):
     """删除掉所有行内注释"""
-    return re.sub(r"(?<!\\)%.*\n[ \t\r\f\v]*", "", content)
+    pattern = re.compile(r"(?<!\\)%.*\n[ \t\r\f\v]*")
+    return re.sub(pattern, "", content)
 
 
 def rm_comments_block(content: str):