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43 lines
1.2 KiB
Python
43 lines
1.2 KiB
Python
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"""Epub Reader.
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A parser for epub files.
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"""
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from pathlib import Path
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from typing import Dict, Optional, List
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from gpt_index.readers.base import BaseReader
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from gpt_index.readers.schema.base import Document
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class EpubReader(BaseReader):
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"""Epub Parser."""
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def load_data(
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self, file: Path, extra_info: Optional[Dict] = None
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) -> List[Document]:
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"""Parse file."""
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try:
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import ebooklib
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from ebooklib import epub
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except ImportError:
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raise ValueError("`EbookLib` is required to read Epub files.")
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try:
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import html2text
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except ImportError:
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raise ValueError("`html2text` is required to parse Epub files.")
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text_list = []
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book = epub.read_epub(file, options={"ignore_ncx": True})
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# Iterate through all chapters.
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for item in book.get_items():
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# Chapters are typically located in epub documents items.
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if item.get_type() == ebooklib.ITEM_DOCUMENT:
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text_list.append(
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html2text.html2text(item.get_content().decode("utf-8"))
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)
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text = "\n".join(text_list)
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return [Document(text, extra_info=extra_info)]
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