use exact argument name for section

html-preprocessor

@@ -367,7 +367,7 @@ def cmd_include(args: str, variables:dict[str, str]={}) -> str:
                     cmd_args = match.groups()[1].replace('\t', ' ').strip(' ')
                     pdebug("cmd_include", f"Found command '{command}' with args '{cmd_args}'")
                     if command == "section":
-                        if cmd_args.startswith(target_section):
+                        if cmd_args == target_section:
                             p.pos["start"] = max(p.pos["cmt_end"] + len(COMMENT_END), p.pos["line_end"] + 1)
                         elif p.pos["start"] >= 0:  #end
                             p.pos["end"] = max(p.pos["cmt_end"] + len(COMMENT_END), p.pos["line_end"] + 1)
@@ -394,7 +394,8 @@ def cmd_include(args: str, variables:dict[str, str]={}) -> str:
     if filename.endswith(".md"):
         try:
             import mdtex2html as m2h  # this package also converts tex to MathML
-            content = m2h.convert(content, extensions=["extra"])
+            # replace #$ to avoid everything being parsed as formula
+            content = m2h.convert(content.replace('\\#$', 'REPLHASHDOLLAR').replace('#$', 'REPLHASHDOLLAR'), extensions=["extra"]).replace('REPLHASHDOLLAR', '#$')
         except:
             error("cmd_include", f"mdtex2html could not be imported, falling back to python-markdown for md to html conversion", level=error_levels["light"], exit_code=exit_codes["MarkdownConversionError"])
             try: