Add a plain C ABI and a ctypes-based Python interface - #2
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expressionist_c.h/.cpp exposes the engine as JSON-string-in/JSON-string-out over an extern "C" boundary, so no C++ type ever crosses it and the result is usable from any language with a C FFI. python/expressionist wraps it with ctypes, needing no build step of its own. Both are opt-in via EXPRESSIONIST_BUILD_C_API / EXPRESSIONIST_BUILD_PYTHON (the latter implies the former). Installing with EXPRESSIONIST_BUILD_PYTHON copies the shared library and the Python package into Python3_SITELIB, which resolves to an active virtualenv's site-packages automatically, so `import expressionist` works right after cmake --install with no extra PYTHONPATH/LD_LIBRARY_PATH setup. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01PSusXDdkjoi4ofSB9zJMoE
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expressionist_c.h/.cpp exposes the engine as JSON-string-in/JSON-string-out
over an extern "C" boundary, so no C++ type ever crosses it and the result
is usable from any language with a C FFI. python/expressionist wraps it
with ctypes, needing no build step of its own.
Both are opt-in via EXPRESSIONIST_BUILD_C_API / EXPRESSIONIST_BUILD_PYTHON
(the latter implies the former). Installing with EXPRESSIONIST_BUILD_PYTHON
copies the shared library and the Python package into Python3_SITELIB,
which resolves to an active virtualenv's site-packages automatically, so
import expressionistworks right after cmake --install with no extraPYTHONPATH/LD_LIBRARY_PATH setup.
Co-Authored-By: Claude Sonnet 5 noreply@anthropic.com
Claude-Session: https://claude.ai/code/session_01PSusXDdkjoi4ofSB9zJMoE