📦 chore(LanguageRecursiveTextSplitter.py): add LanguageRecursiveTextSplitter component to split text into chunks based on language

📝 docs(LanguageRecursiveTextSplitter.py): add documentation link for LanguageRecursiveTextSplitter component
🔧 refactor(LanguageRecursiveTextSplitter.py): refactor build_config method to use options from Language enum for separator_type
🔧 refactor(LanguageRecursiveTextSplitter.py): refactor build method to split text into chunks based on specified length and overlap
🔧 refactor(LanguageRecursiveTextSplitter.py): refactor build method to handle chunk_size and chunk_overlap as integers
🔧 refactor(LanguageRecursiveTextSplitter.py): refactor build method to use RecursiveCharacterTextSplitter from langchain.text_splitter
🔧 refactor(LanguageRecursiveTextSplitter.py): refactor build method to split documents using RecursiveCharacterTextSplitter and return the chunks
This commit is contained in:
Gabriel Luiz Freitas Almeida 2023-08-24 22:24:07 -03:00
commit 0649b61fca

View file

@ -0,0 +1,85 @@
from typing import Optional
from langflow import CustomComponent
from langchain.text_splitter import Language
from langchain.schema import Document
from langflow.utils.util import build_loader_repr_from_documents
class LanguageRecursiveTextSplitterComponent(CustomComponent):
display_name: str = "Language Recursive Text Splitter"
description: str = "Split text into chunks of a specified length based on language."
documentation: str = "https://docs.langflow.org/components/text-splitters#recursivecharactertextsplitter"
def build_config(self):
options = [x.value for x in Language]
return {
"documents": {
"display_name": "Documents",
"info": "The documents to split.",
},
"separator_type": {
"display_name": "Separator Type",
"info": "The type of separator to use.",
"field_type": "str",
"options": options,
"value": "Python",
},
"separators": {
"display_name": "Separators",
"info": "The characters to split on.",
"is_list": True,
},
"chunk_size": {
"display_name": "Chunk Size",
"info": "The maximum length of each chunk.",
"field_type": "int",
"value": 1000,
},
"chunk_overlap": {
"display_name": "Chunk Overlap",
"info": "The amount of overlap between chunks.",
"field_type": "int",
"value": 200,
},
"code": {"show": False},
}
def build(
self,
documents: Document,
chunk_size: Optional[int] = 1000,
chunk_overlap: Optional[int] = 200,
separator_type: Optional[str] = "Python",
) -> Document:
"""
Split text into chunks of a specified length.
Args:
separators (list[str]): The characters to split on.
chunk_size (int): The maximum length of each chunk.
chunk_overlap (int): The amount of overlap between chunks.
length_function (function): The function to use to calculate the length of the text.
Returns:
list[str]: The chunks of text.
"""
from langchain.text_splitter import RecursiveCharacterTextSplitter
# Make sure chunk_size and chunk_overlap are ints
try:
chunk_size = int(chunk_size)
chunk_overlap = int(chunk_overlap)
except Exception as e:
raise ValueError(
"chunk_size and chunk_overlap must be integers."
" Received chunk_size={chunk_size} and chunk_overlap={chunk_overlap}."
) from e
splitter = RecursiveCharacterTextSplitter.from_language(
language=Language(separator_type),
chunk_size=chunk_size,
chunk_overlap=chunk_overlap,
)
docs = splitter.split_documents(documents)
self.repr_value = build_loader_repr_from_documents(docs)
return docs