A simple program to calculate expressions with physical units.
This is a miniature version of some broader compiler/interpreter techniques, for fun/to help me learn C better.
See docs.
(Everything from the project's root directory. Assumes clang is installed.)
Run:
- Build + run:
make - With debug logs:
make DEBUG=1
Test:
- Build + test:
make test - With debug logs:
make test DEBUG=1 - Specific test case:
make test test=3 case=4 - Disable spawning separate processes for each test/case:
make test fork=0
Build to wasm:
- Download and install emscripten
make wasm- Serve files:
python3 -m http.server --directory website - Open http://localhost:8000
See the makefile for more info.
Contributors welcome!
Things I'd like to do at some point:
- Add the rest of the of the SI units
- Add a bunch of builtin unit aliases like newtons, watts, mph
- Somehow show results in simplified forms using unit aliases
- Add a bunch of builtin constants like G, pi
- Support some more math/expressions like pow, log, parentheses
- Allow custom units/conversions - user can define a unit and it's conversion to an existing unit in some linear equation
- Syntax highlighting and autocompletion in the prompt