Clac was originally created as a command line calculator to address some annoyances with the default Windows calculator:
- Relatively long time to start up
- No support for custom functions and variables
- No way to evaluate an expression from a command line session
The decision to support functions and variables expanded the project's scope to being somewhere between a calculator and a small, mathematical scripting language.
Clac is run from the command line:
clac [CODE]If one or more arguments are given, then they are joined with spaces and treated as a single line of code. Clac executes the code and exits automatically.
If no arguments are given, then the user can enter code in a loop until
manually exiting with Ctrl+D (Linux, macOS, etc.) or Ctrl+Z (Windows.)
Clac is designed to be usable as a calculator, so writing an expression at the top level of a program will print its result:
clac> 1 + 1
2
Note
For more information about language features, see the language documentation.
Clac uses thiserror for error handling.