코드 리뷰, 수정

파일 이름을 파싱해서 각 항목에 삽입하는 설명 추가

main.py

@@ -26,7 +26,17 @@ DEFAULT_VALUES = {
 
 #
 def main(argc, argv):
-    parser = argparse.ArgumentParser(description="ComicInfo.XML 생성기")
+    parser = argparse.ArgumentParser(
+        description="ComicInfo.XML 생성기",
+        formatter_class=argparse.RawDescriptionHelpFormatter,
+        epilog=(
+            "사용 예시:\n"
+            "  폴더명이 '[작가] 제목'인 경우:\n"
+            "  python3 main.py --in \"/path/[작가] 제목/book.cbz\" "
+            "--title '<currentfolder>:s/^\\[([^\\]]+)\\]\\s*(.+)$/$2/' "
+            "--author '<currentfolder>:s/^\\[([^\\]]+)\\]\\s*(.+)$/$1/'"
+        ),
+    )
     parser.add_argument('--root', dest='root_dir', required=False, help='입력 폴더 지정')
     parser.add_argument('--in', dest='arc_file', required=False, help='대상 파일 지정')
     parser.add_argument('--title', dest='info_title', required=False, help='제목')
@@ -198,15 +208,21 @@ def ExpandPathVars(text: str | None, filepath: str) -> str | None:
     for key, value in var_map.items():
         result = result.replace(f"<{key}>", value)
 
-    # After variable expansion, check for :s/pattern/replacement/ or s/pattern/replacement/ suffix
-    m = re.match(r'^(.*):?s(.)(.+?)\2(.*?)(?:\2([ig]*))?$', result, re.DOTALL)
+    # After variable expansion, check for :s/pattern/replacement/ suffix.
+    transform_pos = result.find(':s')
+    if transform_pos >= 0:
+        source = result[:transform_pos]
+        transform = result[transform_pos + 1:]
+        m = re.match(r'^s(?P<delim>.)(?P<pattern>.*?)(?P=delim)(?P<replacement>.*?)(?P=delim)(?P<flags>[ig]*)$', transform, re.DOTALL)
+    else:
+        source = ''
+        m = None
+
     if m:
-        source = m.group(1)
-        delim = m.group(2)
-        pattern = m.group(3)
-        replacement = m.group(4)
-        flags_str = m.group(5) or ''
-        replacement_safe = re.sub(r'\$(\d+)', r'\\\1', replacement)
+        pattern = m.group('pattern')
+        replacement = m.group('replacement')
+        flags_str = m.group('flags')
+        replacement_safe = re.sub(r'\$(\d+)', lambda match: '\\' + match.group(1), replacement)
         flags = 0
         if 'i' in flags_str:
             flags |= re.IGNORECASE
@@ -311,6 +327,7 @@ def ValidateAndFixComicInfoXML(xml_bytes: bytes) -> tuple[bytes | None, list[str
             msgs.append("XML is now well-formed.")
         except ET.ParseError as e2:
             msgs.append(f"Remaining issues after fix: {e2}")
+            return (None, msgs)
         return (fixed_bytes, msgs)
 
     msgs.append("No fixable issues found.")
@@ -604,6 +621,7 @@ def ProcessMetadataToCBZ(strArcPath: str, bPrint: bool = False,
             xml_content = output.getvalue().decode('utf-8')
         except Exception as e:
             util.DbgOut(f"XML 수정 중 오류: {e}", True)
+            return False
         
         # 출력 옵션이 켜져 있으면 내용 출력
         if True == bPrint: