mirror of
https://git.mirrors.martin98.com/https://github.com/infiniflow/ragflow.git
synced 2025-04-22 06:00:00 +08:00
62 lines
2.0 KiB
Python
62 lines
2.0 KiB
Python
# 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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from rag.nlp import find_codec,num_tokens_from_string
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import re
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class RAGFlowTxtParser:
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def __call__(self, fnm, binary=None, chunk_token_num=128, delimiter="\n!?;。；！？"):
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txt = ""
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if binary:
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encoding = find_codec(binary)
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txt = binary.decode(encoding, errors="ignore")
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else:
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with open(fnm, "r") as f:
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while True:
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l = f.readline()
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if not l:
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break
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txt += l
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return self.parser_txt(txt, chunk_token_num, delimiter)
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@classmethod
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def parser_txt(cls, txt, chunk_token_num=128, delimiter="\n!?;。；！？"):
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if type(txt) != str:
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raise TypeError("txt type should be str!")
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cks = [""]
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tk_nums = [0]
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def add_chunk(t):
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nonlocal cks, tk_nums, delimiter
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tnum = num_tokens_from_string(t)
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if tnum < 8:
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pos = ""
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if tk_nums[-1] > chunk_token_num:
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cks.append(t)
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tk_nums.append(tnum)
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else:
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cks[-1] += t
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tk_nums[-1] += tnum
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s, e = 0, 1
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while e < len(txt):
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if txt[e] in delimiter:
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add_chunk(txt[s: e + 1])
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s = e + 1
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e = s + 1
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else:
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e += 1
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if s < e:
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add_chunk(txt[s: e + 1])
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return [[c,""] for c in cks] |