Statemachine

Source: examples/statemachine

statemachine is a compact modeling example where semantic rules matter more than expression parsing. It is especially useful when you want to study whole-model validation and editor support together.

What it shows

• a state-oriented modeling language
• semantic validation rules
• formatting and LSP integration
• a VS Code client for interactive testing

Useful entry points

• CLI: ./build/examples/statemachine/pegium-example-statemachine-cli
• LSP: ./build/examples/statemachine/pegium-example-statemachine-lsp

What to read first

Start with:

• examples/statemachine/src/StatemachineModule.cpp for the service setup
• examples/statemachine/src/validation/StatemachineValidator.cpp for typed validation checks
• examples/statemachine/src/lsp/StatemachineFormatter.cpp for the formatter

Why start here

Use this example when your language centers on connected model elements and validation rules rather than expression evaluation.

Use this example when

• semantic validation is central to the language
• the domain is graph- or state-based
• you want a compact modeling example with editor support

Continue with

• Validation
• Custom Validator
• Build a Language