UnisKB/apps/common/handle/impl/text_split_handle.py

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# coding=utf-8
"""
@project: maxkb
@Author
@file text_split_handle.py
@date2024/3/27 18:19
@desc:
"""
import re
from typing import List
from charset_normalizer import detect
from common.handle.base_split_handle import BaseSplitHandle
from common.util.split_model import SplitModel
default_pattern_list = [re.compile('(?<=^)# .*|(?<=\\n)# .*'),
re.compile('(?<=\\n)(?<!#)## (?!#).*|(?<=^)(?<!#)## (?!#).*'),
re.compile("(?<=\\n)(?<!#)### (?!#).*|(?<=^)(?<!#)### (?!#).*"),
re.compile("(?<=\\n)(?<!#)#### (?!#).*|(?<=^)(?<!#)#### (?!#).*"),
re.compile("(?<=\\n)(?<!#)##### (?!#).*|(?<=^)(?<!#)##### (?!#).*"),
re.compile("(?<=\\n)(?<!#)###### (?!#).*|(?<=^)(?<!#)###### (?!#).*")]
class TextSplitHandle(BaseSplitHandle):
def support(self, file, get_buffer):
buffer = get_buffer(file)
file_name: str = file.name.lower()
if file_name.endswith(".md") or file_name.endswith('.txt') or file_name.endswith('.TXT') or file_name.endswith(
'.MD'):
return True
result = detect(buffer)
if result['encoding'] is not None and result['confidence'] is not None and result['encoding'] != 'ascii' and \
result['confidence'] > 0.5:
return True
return False
def handle(self, file, pattern_list: List, with_filter: bool, limit: int, get_buffer, save_image):
buffer = get_buffer(file)
if pattern_list is not None and len(pattern_list) > 0:
split_model = SplitModel(pattern_list, with_filter, limit)
else:
split_model = SplitModel(default_pattern_list, with_filter=with_filter, limit=limit)
try:
content = buffer.decode(detect(buffer)['encoding'])
except BaseException as e:
return {'name': file.name,
'content': []}
return {'name': file.name,
'content': split_model.parse(content)
}