54 lines
2.0 KiB
Python
54 lines
2.0 KiB
Python
# coding=utf-8
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"""
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@project: maxkb
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@Author：虎
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@file： text_split_handle.py
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@date：2024/3/27 18:19
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@desc:
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"""
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import re
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from typing import List
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import fitz
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from common.handle.base_split_handle import BaseSplitHandle
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from common.util.split_model import SplitModel
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default_pattern_list = [re.compile('(?<=^)# .*|(?<=\\n)# .*'),
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re.compile('(?<=\\n)(?<!#)## (?!#).*|(?<=^)(?<!#)## (?!#).*'),
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re.compile("(?<=\\n)(?<!#)### (?!#).*|(?<=^)(?<!#)### (?!#).*"),
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re.compile("(?<=\\n)(?<!#)#### (?!#).*|(?<=^)(?<!#)#### (?!#).*"),
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re.compile("(?<=\\n)(?<!#)##### (?!#).*|(?<=^)(?<!#)##### (?!#).*"),
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re.compile("(?<=\\n)(?<!#)###### (?!#).*|(?<=^)(?<!#)###### (?!#).*"),
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re.compile("(?<!\n)\n\n+")]
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def number_to_text(pdf_document, page_number):
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page = pdf_document.load_page(page_number)
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text = page.get_text()
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return text
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class PdfSplitHandle(BaseSplitHandle):
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def handle(self, file, pattern_list: List, with_filter: bool, limit: int, get_buffer):
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try:
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buffer = get_buffer(file)
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pdf_document = fitz.open(file.name, buffer)
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content = "\n".join([number_to_text(pdf_document, page_number) for page_number in range(len(pdf_document))])
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if pattern_list is not None and len(pattern_list) > 0:
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split_model = SplitModel(pattern_list, with_filter, limit)
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else:
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split_model = SplitModel(default_pattern_list, with_filter=with_filter, limit=limit)
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except BaseException as e:
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return {'name': file.name,
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'content': []}
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return {'name': file.name,
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'content': split_model.parse(content)
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}
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def support(self, file, get_buffer):
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file_name: str = file.name.lower()
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if file_name.endswith(".pdf"):
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return True
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return False
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