calcula

A simple calculator library and command-line app.

Gets input with rustyline, so emacs-style shortcuts are supported (Ctrl-A to move to the beginning of the line, Ctrl-E to move to the end of the line, Ctrl-U to clear, etc.). See their linked GitHub page for more information.

Planned Features

• Interactive REPL mode or performing a single calculation as an argument
• Rust-style variable bindings and number types (i32, u8, f64, etc.)
• Functions
• Built-in math library for constants like pi and operations like sin(2.0) sqrt(7.0)
• Number literals in various bases (0xFF, 0b1010, 0o777 etc.)
• Meta commands: :binary for printing as binary, :hex for printing as hex, :type for printing a variable's type, etc.
• Bitfield operations ((0b1010 << 2) | 0b11)
• Error handling: warning on overflow of datatypes

License

Licensed under Apache 2.