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feat: add new HanLP integration with ChineseDocumentSplitter (#1943)
* Add Chinese DocumentSplitter support with examples * fix: update tests and release notes * Fix according to review: - Removed notebook and original_pipeline.png - Added release note YAML file in notes/ - Reverted config.yaml - Implemented lazy import for hanlp - Removed main guard block from module * cleaning up * fixing lazy import * Add test script for ChineseDocumentSplitter, remove Chinese comments, and fix lint issues * wip * adding LICENSE header to tests * wip * adding LICENSE header * fixing linting issues * fixing tests * fixing tests * wip: trying to make tests work with downloaded data * wip: trying to make tests work with downloaded data * move ChineseDocumentSplitter to integration folder * create scaffold of the new integration * add test workflow * add new integration to labeler.yml * add to overview table in README * add warmup, do not inherit from DocumentSplitter, remove english support * fmt * fmt * align Hatch script of hanlp with other integrations * lint:typing more_itertools * move files to hanlp directory * fix tests using enumerate only for prints * fmt * add unit tests, handle edge case when split_length < split_overlap * stop testing on windows + python 3.13 * refactor tests, add usage example, simplify tokenizers * add py.typed * ignore RUF002, fmt * to_dict, from_dict * address code improvement ideas from review with Vladimir * remove unnecessary \n and simplify corresponding tests * fmt * fmt * remove pylint/type ignore * fix tests, add new line after license * return type annotation --------- Co-authored-by: mc112611 <307267954@qq.com> Co-authored-by: David S. Batista <dsbatista@gmail.com>
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.github/labeler.yml

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@@ -69,6 +69,11 @@ integration:google-vertex:
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- any-glob-to-any-file: "integrations/google_vertex/**/*"
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- any-glob-to-any-file: ".github/workflows/google_vertex.yml"
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integration:hanlp:
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- changed-files:
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- any-glob-to-any-file: "integrations/hanlp/**/*"
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- any-glob-to-any-file: ".github/workflows/hanlp.yml"
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integration:jina:
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- changed-files:
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- any-glob-to-any-file: "integrations/jina/**/*"

.github/workflows/hanlp.yml

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# This workflow comes from https://github.com/ofek/hatch-mypyc
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# https://github.com/ofek/hatch-mypyc/blob/5a198c0ba8660494d02716cfc9d79ce4adfb1442/.github/workflows/test.yml
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name: Test / hanlp
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on:
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schedule:
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- cron: "0 0 * * *"
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pull_request:
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paths:
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- "integrations/hanlp/**"
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- "!integrations/hanlp/*.md"
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- ".github/workflows/hanlp.yml"
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defaults:
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run:
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working-directory: integrations/hanlp
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concurrency:
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group: hanlp-${{ github.head_ref }}
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cancel-in-progress: true
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env:
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PYTHONUNBUFFERED: "1"
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FORCE_COLOR: "1"
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jobs:
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run:
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name: Python ${{ matrix.python-version }} on ${{ startsWith(matrix.os, 'macos-') && 'macOS' || startsWith(matrix.os, 'windows-') && 'Windows' || 'Linux' }}
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runs-on: ${{ matrix.os }}
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strategy:
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fail-fast: false
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matrix:
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os: [ubuntu-latest, windows-latest, macos-latest]
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python-version: ["3.9", "3.13"]
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# sentencepiece cannot be installed on Windows with Python 3.13
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# https://github.com/google/sentencepiece/issues/1111
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exclude:
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- os: windows-latest
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python-version: "3.13"
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steps:
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- name: Support longpaths
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if: matrix.os == 'windows-latest'
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working-directory: .
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run: git config --system core.longpaths true
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- uses: actions/checkout@v4
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- name: Set up Python ${{ matrix.python-version }}
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uses: actions/setup-python@v5
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with:
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python-version: ${{ matrix.python-version }}
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- name: Install Hatch
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run: pip install --upgrade hatch
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- name: Lint
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if: matrix.python-version == '3.9' && runner.os == 'Linux'
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run: hatch run fmt-check && hatch run test:types
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- name: Generate docs
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if: matrix.python-version == '3.9' && runner.os == 'Linux'
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run: hatch run docs
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- name: Run tests
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run: hatch run test:cov-retry
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- name: Run unit tests with lowest direct dependencies
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run: |
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hatch run uv pip compile pyproject.toml --resolution lowest-direct --output-file requirements_lowest_direct.txt
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hatch run uv pip install -r requirements_lowest_direct.txt
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hatch run test:unit
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- name: Nightly - run unit tests with Haystack main branch
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if: github.event_name == 'schedule'
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run: |
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hatch env prune
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hatch run uv pip install git+https://github.com/deepset-ai/haystack.git@main
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hatch run test:unit
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- name: Send event to Datadog for nightly failures
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if: failure() && github.event_name == 'schedule'
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uses: ./.github/actions/send_failure
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with:
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title: |
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Core integrations nightly tests failure: ${{ github.workflow }}
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api-key: ${{ secrets.CORE_DATADOG_API_KEY }}

README.md

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| [google-ai-haystack](integrations/google_ai/) | Generator | [![PyPI - Version](https://img.shields.io/pypi/v/google-ai-haystack.svg)](https://pypi.org/project/google-ai-haystack) | [![Test / google-ai](https://github.com/deepset-ai/haystack-core-integrations/actions/workflows/google_ai.yml/badge.svg)](https://github.com/deepset-ai/haystack-core-integrations/actions/workflows/google_ai.yml) |
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| [google-genai-haystack](integrations/google_genai/) | Embedder, Generator | [![PyPI - Version](https://img.shields.io/pypi/v/google-genai-haystack.svg)](https://pypi.org/project/google-genai-haystack) | [![Test / google-genai](https://github.com/deepset-ai/haystack-core-integrations/actions/workflows/google_genai.yml/badge.svg)](https://github.com/deepset-ai/haystack-core-integrations/actions/workflows/google_genai.yml) |
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| [google-vertex-haystack](integrations/google_vertex/) | Embedder, Generator | [![PyPI - Version](https://img.shields.io/pypi/v/google-vertex-haystack.svg)](https://pypi.org/project/google-vertex-haystack) | [![Test / google-vertex](https://github.com/deepset-ai/haystack-core-integrations/actions/workflows/google_vertex.yml/badge.svg)](https://github.com/deepset-ai/haystack-core-integrations/actions/workflows/google_vertex.yml) |
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| [hanlp-haystack](integrations/hanlp/) | Preprocessor | [![PyPI - Version](https://img.shields.io/pypi/v/hanlp-haystack.svg)](https://pypi.org/project/hanlp-haystack) | [![Test / hanlp](https://github.com/deepset-ai/haystack-core-integrations/actions/workflows/hanlp.yml/badge.svg)](https://github.com/deepset-ai/haystack-core-integrations/actions/workflows/hanlp.yml) |
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| [jina-haystack](integrations/jina/) | Connector, Embedder, Ranker | [![PyPI - Version](https://img.shields.io/pypi/v/jina-haystack.svg)](https://pypi.org/project/jina-haystack) | [![Test / jina](https://github.com/deepset-ai/haystack-core-integrations/actions/workflows/jina.yml/badge.svg)](https://github.com/deepset-ai/haystack-core-integrations/actions/workflows/jina.yml) |
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| [langfuse-haystack](integrations/langfuse/) | Tracer | [![PyPI - Version](https://img.shields.io/pypi/v/langfuse-haystack.svg?color=orange)](https://pypi.org/project/langfuse-haystack) | [![Test / langfuse](https://github.com/deepset-ai/haystack-core-integrations/actions/workflows/langfuse.yml/badge.svg)](https://github.com/deepset-ai/haystack-core-integrations/actions/workflows/langfuse.yml) |
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| [llama-cpp-haystack](integrations/llama_cpp/) | Generator | [![PyPI - Version](https://img.shields.io/pypi/v/llama-cpp-haystack.svg?color=orange)](https://pypi.org/project/llama-cpp-haystack) | [![Test / llama-cpp](https://github.com/deepset-ai/haystack-core-integrations/actions/workflows/llama_cpp.yml/badge.svg)](https://github.com/deepset-ai/haystack-core-integrations/actions/workflows/llama_cpp.yml) |

integrations/hanlp/LICENSE.txt

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integrations/hanlp/README.md

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# hanlp-haystack
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[![PyPI - Version](https://img.shields.io/pypi/v/hanlp-haystack.svg)](https://pypi.org/project/hanlp-haystack)
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[![PyPI - Python Version](https://img.shields.io/pypi/pyversions/hanlp-haystack.svg)](https://pypi.org/project/hanlp-haystack)
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-----
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## Table of Contents
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- [Installation](#installation)
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- [License](#license)
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## Installation
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```console
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pip install hanlp-haystack
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```
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## License
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`hanlp-haystack` is distributed under the terms of the [Apache-2.0](https://spdx.org/licenses/Apache-2.0.html) license.
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loaders:
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- type: haystack_pydoc_tools.loaders.CustomPythonLoader
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search_path: [../src]
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modules: [
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"haystack_integrations.components.preprocessors.hanlp.chinese_document_splitter",
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]
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ignore_when_discovered: ["__init__"]
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processors:
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- type: filter
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expression:
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documented_only: true
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do_not_filter_modules: false
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skip_empty_modules: true
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- type: smart
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- type: crossref
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renderer:
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type: haystack_pydoc_tools.renderers.ReadmeIntegrationRenderer
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excerpt: HanLP integration for Haystack
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category_slug: integrations-api
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title: HanLP
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slug: integrations-hanlp
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order: 100
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markdown:
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descriptive_class_title: false
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classdef_code_block: false
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descriptive_module_title: true
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add_method_class_prefix: true
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add_member_class_prefix: false
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filename: _readme_github.md

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