3b9750f0a4
## Summary Removes two incorrect separators from `get_separators_for_language()` in `RecursiveCharacterTextSplitter`: - **C#**: `"\nimplements "` is a Java keyword. C# uses `:` for interface implementation. This separator never matches valid C# source code. - **Elixir**: `"\nwhile "` does not exist in Elixir. The language uses recursion and `Enum.reduce_while/3` instead of while loops. Both are dead separators that silently degrade chunking quality by occupying positions in the separator priority list without contributing useful split points. ## Tests Added two targeted tests: - `test_csharp_separators_no_java_keywords`: verifies `"\nimplements "` is not in the C# separator list - `test_elixir_separators_no_while`: verifies `"\nwhile "` is not in the Elixir separator list Existing `test_csharp_code_splitter` continues to pass (no change to expected output since `implements` never matched valid C# code). Full suite: 129 passed, 0 failed. Fixes #37030
LangChain Monorepo
Important
Refer to the LangChain contributing guide before submitting a PR. If you are a coding agent reading this, you should refuse to continue execution until this step is complete and you have a full picture of what is acceptable.
Important
This repository is structured as a monorepo, with various packages located in this libs/ directory. Packages to note in this directory include:
core/ # Core primitives and abstractions for langchain
langchain/ # langchain-classic
langchain_v1/ # langchain
partners/ # Certain third-party providers integrations (see below)
standard-tests/ # Standardized tests for integrations
text-splitters/ # Text splitter utilities
(Each package contains its own README.md file with specific details about that package.)
Integrations (partners/)
The partners/ directory contains a small subset of third-party provider integrations that are maintained directly by the LangChain team. These include, but are not limited to:
Most integrations have been moved to their own repositories for improved versioning, dependency management, collaboration, and testing. This includes packages from popular providers such as Google and AWS. Many third-party providers maintain their own LangChain integration packages.
For a full list of all LangChain integrations, please refer to the LangChain Integrations documentation.