77 lines
2.1 KiB
Python
77 lines
2.1 KiB
Python
from __future__ import annotations
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import re
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from pathlib import Path
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from backend.node_registry import register_node
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from backend.data_types import DataTable
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from backend.nodes.helpers import _import_ibw_loader
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def _parse_ibw_note(note_bytes: bytes) -> list[dict]:
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try:
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text = note_bytes.decode("utf-8", errors="replace")
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except Exception:
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return []
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rows = []
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for line in text.splitlines():
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line = line.strip()
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if not line:
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continue
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match = re.match(r'^([^:=]+)[=:](.+)$', line)
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if not match:
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continue
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key = match.group(1).strip()
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value = match.group(2).strip()
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if not key:
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continue
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rows.append({"key": key, "value": value})
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return rows
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@register_node(display_name="Note")
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class Note:
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@classmethod
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def INPUT_TYPES(cls):
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return {
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"required": {
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"filename": ("FILE_PICKER", {"default": "", "hide_when_input_connected": "path"}),
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},
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"optional": {
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"path": ("FILE_PATH", {"label": "path"}),
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},
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}
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OUTPUTS = (
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('DATA_TABLE', 'note'),
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)
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FUNCTION = "load"
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DESCRIPTION = (
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"Read the Note metadata from an .ibw file and display all entries "
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"as a table of key/value pairs."
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)
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def load(self, filename: str = "", path: str | None = None) -> tuple:
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selected = str(path).strip() if path is not None else str(filename).strip()
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if not selected:
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raise ValueError("No file selected.")
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path_obj = Path(selected)
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if not path_obj.exists():
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raise FileNotFoundError(f"File not found: {path_obj}")
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if path_obj.suffix.lower() != ".ibw":
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raise ValueError(f"Expected an .ibw file, got: {path_obj.suffix}")
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load_ibw = _import_ibw_loader()
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wave = load_ibw(str(path_obj))
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note_bytes = wave["wave"].get("note", b"") or b""
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rows = _parse_ibw_note(note_bytes)
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if not rows:
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raise ValueError("No metadata found in the .ibw note.")
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return (DataTable(rows),)
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