Hugging Face's logo

Spaces:
Starowo
/
ragflow
Build error

App Files Community
ragflow / deepdoc /parser /markdown_parser.py
Starowo's picture
Starowo
Upload 1411 files
b9fe2b4 verified
Raw
History Blame Contribute Delete
2.95 kB
# -*- coding: utf-8 -*-
#
# Copyright 2025 The InfiniFlow Authors. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
import re
class RAGFlowMarkdownParser:
 def __init__(self, chunk_token_num=128):
 self.chunk_token_num = int(chunk_token_num)
def extract_tables_and_remainder(self, markdown_text):
 tables = []
 remainder = markdown_text
 if "|" in markdown_text: # for optimize performance
 # Standard Markdown table
 border_table_pattern = re.compile(
 r'''
 (?:\n|^)
(?:\|.*?\|.*?\|.*?\n)
(?:\|(?:\s*[:-]+[-| :]*\s*)\|.*?\n)
(?:\|.*?\|.*?\|.*?\n)+
 ''', re.VERBOSE)
 border_tables = border_table_pattern.findall(markdown_text)
 tables.extend(border_tables)
 remainder = border_table_pattern.sub('', remainder)
# Borderless Markdown table
 no_border_table_pattern = re.compile(
 r'''
 (?:\n|^)
(?:\S.*?\|.*?\n)
 (?:(?:\s*[:-]+[-| :]*\s*).*?\n)
 (?:\S.*?\|.*?\n)+
 ''', re.VERBOSE)
 no_border_tables = no_border_table_pattern.findall(remainder)
 tables.extend(no_border_tables)
 remainder = no_border_table_pattern.sub('', remainder)
if "<table>" in remainder.lower(): # for optimize performance
 #HTML table extraction - handle possible html/body wrapper tags
 html_table_pattern = re.compile(
 r'''
 (?:\n|^)
 \s*
 (?:
 # case1: <html><body><table>...</table></body></html>
 (?:<html[^>]*>\s*<body[^>]*>\s*<table[^>]*>.*?</table>\s*</body>\s*</html>)
 |
 # case2: <body><table>...</table></body>
 (?:<body[^>]*>\s*<table[^>]*>.*?</table>\s*</body>)
 |
 # case3: only<table>...</table>
 (?:<table[^>]*>.*?</table>)
 )
 \s*
 (?=\n|$)
 ''',
 re.VERBOSE | re.DOTALL | re.IGNORECASE
 )
 html_tables = html_table_pattern.findall(remainder)
 tables.extend(html_tables)
 remainder = html_table_pattern.sub('', remainder)
return remainder, tables