Remapping

[pavel-kirienko]

Closes #23

[Copilot]

Pull request overview

Adds a name remapping mechanism to the Cyphal “cy” node, wiring it into name resolution and providing configuration via a simple from=to string format. This is integrated into the public API/docs, examples, and test suite.

Changes:

• Implemented cy_remap() / cy_remap_parse() and applied remap rules during cy_resolve()/cy_name_resolve().
• Extended cy_name_resolve() to accept an optional WKV remap table and updated tests accordingly.
• Added new integration tests for remapping, updated examples to read CYPHAL_NAMESPACE/CYPHAL_REMAP, and documented remapping in the README.

Reviewed changes

Copilot reviewed 11 out of 11 changed files in this pull request and generated 4 comments.

Show a summary per file

File	Description
cy/cy.c	Adds remap storage to cy_t, implements remap APIs, and applies remap in name resolution.
cy/cy.h	Documents remapping and changes cy_name_resolve() signature to accept a remap table.
tests/src/test_api_remap.cpp	New integration tests for remap insertion/overwrite, parsing, pin behavior, OOM rollback, and destroy cleanup.
tests/src/test_api_name.cpp	Updates call sites for the new cy_name_resolve(remap, ...) signature and adds unit-style remap tests using WKV directly.
tests/CMakeLists.txt	Adds the new remap test target to the API test matrix.
README.md	Documents the remapping feature and environment-variable based configuration convention.
examples/example_time_pub.c	Reads namespace/remap from environment and applies cy_remap_parse().
examples/example_streaming_server.c	Reads namespace/remap from environment and applies cy_remap_parse().
examples/example_streaming_client.c	Reads namespace/remap from environment and applies cy_remap_parse().
examples/example_file_server.c	Reads namespace/remap from environment and applies cy_remap_parse().
examples/example_file_client.c	Reads namespace/remap from environment and applies cy_remap_parse().

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.