microdvd: add option keep_style_tags

pysubs2/microdvd.py

@@ -20,7 +20,7 @@ def guess_format(cls, text):
             return "microdvd"
 
     @classmethod
-    def from_file(cls, subs, fp, format_, fps=None, **kwargs):
+    def from_file(cls, subs, fp, format_, fps=None, keep_style_tags=False, **kwargs):
         """See :meth:`pysubs2.formats.FormatBase.from_file()`"""
         for line in fp:
             match = MICRODVD_LINE.match(line)
@@ -48,6 +48,9 @@ def from_file(cls, subs, fp, format_, fps=None, **kwargs):
             def prepare_text(text):
                 text = text.replace(b"|", rb"\N")
 
+                if keep_style_tags:
+                    return text.strip()
+
                 def style_replacer(match: re.Match) -> str:
                     tags = [c for c in b"biu" if c in match.group(0)]
                     return b"{%s}" % b"".join(b"\\" + str(c).encode("ascii") + b"1" for c in tags)