将flask改成fastapi
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213
rag/app/laws.py
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213
rag/app/laws.py
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#
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# Copyright 2025 The InfiniFlow Authors. All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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#
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import logging
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from tika import parser
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import re
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from io import BytesIO
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from docx import Document
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from api.db import ParserType
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from deepdoc.parser.utils import get_text
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from rag.nlp import bullets_category, remove_contents_table, \
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make_colon_as_title, tokenize_chunks, docx_question_level, tree_merge
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from rag.nlp import rag_tokenizer, Node
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from deepdoc.parser import PdfParser, DocxParser, PlainParser, HtmlParser
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class Docx(DocxParser):
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def __init__(self):
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pass
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def __clean(self, line):
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line = re.sub(r"\u3000", " ", line).strip()
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return line
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def old_call(self, filename, binary=None, from_page=0, to_page=100000):
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self.doc = Document(
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filename) if not binary else Document(BytesIO(binary))
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pn = 0
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lines = []
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for p in self.doc.paragraphs:
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if pn > to_page:
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break
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if from_page <= pn < to_page and p.text.strip():
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lines.append(self.__clean(p.text))
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for run in p.runs:
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if 'lastRenderedPageBreak' in run._element.xml:
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pn += 1
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continue
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if 'w:br' in run._element.xml and 'type="page"' in run._element.xml:
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pn += 1
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return [line for line in lines if line]
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def __call__(self, filename, binary=None, from_page=0, to_page=100000):
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self.doc = Document(
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filename) if not binary else Document(BytesIO(binary))
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pn = 0
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lines = []
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level_set = set()
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bull = bullets_category([p.text for p in self.doc.paragraphs])
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for p in self.doc.paragraphs:
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if pn > to_page:
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break
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question_level, p_text = docx_question_level(p, bull)
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if not p_text.strip("\n"):
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continue
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lines.append((question_level, p_text))
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level_set.add(question_level)
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for run in p.runs:
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if 'lastRenderedPageBreak' in run._element.xml:
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pn += 1
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continue
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if 'w:br' in run._element.xml and 'type="page"' in run._element.xml:
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pn += 1
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sorted_levels = sorted(level_set)
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h2_level = sorted_levels[1] if len(sorted_levels) > 1 else 1
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h2_level = sorted_levels[-2] if h2_level == sorted_levels[-1] and len(sorted_levels) > 2 else h2_level
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root = Node(level=0, depth=h2_level, texts=[])
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root.build_tree(lines)
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return [("\n").join(element) for element in root.get_tree() if element]
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def __str__(self) -> str:
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return f'''
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question:{self.question},
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answer:{self.answer},
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level:{self.level},
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childs:{self.childs}
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'''
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class Pdf(PdfParser):
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def __init__(self):
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self.model_speciess = ParserType.LAWS.value
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super().__init__()
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def __call__(self, filename, binary=None, from_page=0,
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to_page=100000, zoomin=3, callback=None):
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from timeit import default_timer as timer
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start = timer()
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callback(msg="OCR started")
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self.__images__(
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filename if not binary else binary,
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zoomin,
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from_page,
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to_page,
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callback
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)
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callback(msg="OCR finished ({:.2f}s)".format(timer() - start))
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start = timer()
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self._layouts_rec(zoomin)
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callback(0.67, "Layout analysis ({:.2f}s)".format(timer() - start))
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logging.debug("layouts:".format(
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))
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self._naive_vertical_merge()
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callback(0.8, "Text extraction ({:.2f}s)".format(timer() - start))
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return [(b["text"], self._line_tag(b, zoomin))
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for b in self.boxes], None
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def chunk(filename, binary=None, from_page=0, to_page=100000,
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lang="Chinese", callback=None, **kwargs):
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"""
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Supported file formats are docx, pdf, txt.
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"""
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parser_config = kwargs.get(
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"parser_config", {
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"chunk_token_num": 512, "delimiter": "\n!?。；！？", "layout_recognize": "DeepDOC"})
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doc = {
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"docnm_kwd": filename,
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"title_tks": rag_tokenizer.tokenize(re.sub(r"\.[a-zA-Z]+$", "", filename))
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}
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doc["title_sm_tks"] = rag_tokenizer.fine_grained_tokenize(doc["title_tks"])
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pdf_parser = None
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sections = []
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# is it English
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eng = lang.lower() == "english" # is_english(sections)
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if re.search(r"\.docx$", filename, re.IGNORECASE):
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callback(0.1, "Start to parse.")
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chunks = Docx()(filename, binary)
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callback(0.7, "Finish parsing.")
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return tokenize_chunks(chunks, doc, eng, None)
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elif re.search(r"\.pdf$", filename, re.IGNORECASE):
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pdf_parser = Pdf()
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if parser_config.get("layout_recognize", "DeepDOC") == "Plain Text":
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pdf_parser = PlainParser()
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for txt, poss in pdf_parser(filename if not binary else binary,
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from_page=from_page, to_page=to_page, callback=callback)[0]:
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sections.append(txt + poss)
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elif re.search(r"\.(txt|md|markdown|mdx)$", filename, re.IGNORECASE):
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callback(0.1, "Start to parse.")
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txt = get_text(filename, binary)
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sections = txt.split("\n")
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sections = [s for s in sections if s]
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callback(0.8, "Finish parsing.")
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elif re.search(r"\.(htm|html)$", filename, re.IGNORECASE):
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callback(0.1, "Start to parse.")
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sections = HtmlParser()(filename, binary)
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sections = [s for s in sections if s]
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callback(0.8, "Finish parsing.")
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elif re.search(r"\.doc$", filename, re.IGNORECASE):
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callback(0.1, "Start to parse.")
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binary = BytesIO(binary)
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doc_parsed = parser.from_buffer(binary)
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sections = doc_parsed['content'].split('\n')
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sections = [s for s in sections if s]
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callback(0.8, "Finish parsing.")
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else:
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raise NotImplementedError(
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"file type not supported yet(doc, docx, pdf, txt supported)")
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# Remove 'Contents' part
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remove_contents_table(sections, eng)
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make_colon_as_title(sections)
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bull = bullets_category(sections)
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res = tree_merge(bull, sections, 2)
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if not res:
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callback(0.99, "No chunk parsed out.")
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return tokenize_chunks(res, doc, eng, pdf_parser)
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# chunks = hierarchical_merge(bull, sections, 5)
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# return tokenize_chunks(["\n".join(ck)for ck in chunks], doc, eng, pdf_parser)
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if __name__ == "__main__":
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import sys
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def dummy(prog=None, msg=""):
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pass
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chunk(sys.argv[1], callback=dummy)
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