feat: support multi-deck import.

fromtext.py

@@ -11,17 +11,29 @@ def _sanitize_line(l: str) -> str:
         return l[1:-1].replace('""', '"')
     return l
 
+def _get_path(basepath: pathlib.Path, deckname: str) -> pathlib.Path:
+    for p in basepath.iterdir():
+        if p.name == deckname:
+            return p
+        if p.name.startswith(f'{deckname}.'):
+            return p
+    p = basepath / deckname
+    p.mkdir()
+    return p
+
 def process_line(
         *,
         columns: list[str],
         columns_indices: list[int],
+        deck_index: int,
         target_dir: pathlib.Path,
 ) -> None:
     columns = [_sanitize_line(l) for l in columns]
+    deckpath = _get_path(target_dir, columns[deck_index])
     columns = [columns[i] for i in columns_indices]
     slug = ''.join(c for c in columns[0].lower() if c.isalnum() or c == ' ')
     slug = slug.replace(' ', '-')
-    base_filename = target_dir / slug
+    base_filename = deckpath / slug
     for i, c in enumerate(columns):
         with (base_filename.parent / (base_filename.name + f'.{i}.md')).open('w') as fp:
             fp.write(c)
@@ -30,6 +42,7 @@ def main(
         *,
         target_column_count: int = 6,
         columns_indices: list[int] = [3, 4],
+        deck_index: int = 2,
         sep: str = '\t',
 ):
     target_dir = pathlib.Path(next(iter(sys.argv[1:] or ['.'])))
@@ -43,7 +56,12 @@ def main(
         buff += l
         split_ = buff.split(sep)
         if len(split_) == target_column_count:
-            process_line(columns=split_, columns_indices=columns_indices, target_dir=target_dir)
+            process_line(
+                columns=split_,
+                columns_indices=columns_indices,
+                deck_index=deck_index,
+                target_dir=target_dir,
+            )
             buff = ''
 
 if __name__ == '__main__':