Cieto v0.2.0

Host programs can now create a Cieto VM, evaluate Cieto source code, register native C functions, call Cieto functions from C, capture script output, and read runtime errors.

Highlights

• Added public C embedding API in cieto.h
• Added embeddable runtime library target libcieto.a
• Added VM lifecycle APIs:
  • cie_vm_create()
  • cie_vm_destroy()
• Added source evaluation from C:
  • cie_vm_eval()
• Added C-to-Cieto function calls:
  • cie_vm_call()
• Added Cieto-to-C native function registration:
  • cie_vm_register_native()
• Added public value helpers for:
  • null: cie_value_null()
  • bool: cie_value_bool()
  • number: cie_value_number()
• Added runtime error access:
  • cie_vm_last_error()
• Added output and error callbacks:
  • cie_vm_set_output()
  • cie_vm_set_error_output()
• Embedded scripts can no longer terminate the host process through os.exit()
• Added embedding examples
• Added an external CMake example for linking against an installed Cieto runtime
• Added install support for:
  • cieto
  • cieto.h
  • libcieto.a
  • documentation
  • examples

The public value API is intentionally small in this release. It currently supports null, bool, and number for C-to-Cieto calls and return values.