Generate scdlang from other formats

[DrSensor]

[Scope] only support formats that (pick one):

• not being used to describe a state machine or configuration
  • and not literally statecharts or it's derivative
• or standardized interchangeable formats
  • and generated from another system

Possible formats:

• @xstate/graph (prone to changes)
• CSV/HTML/Markdown of state transition table (there is lot of variants)
• SCXML? 🤔
• XMI of the UML

API (prone to changes)

let parser = Scdlang::new();

parser.transform().expressions
    .nth(0).current_state("B")?
    .next_state("A")?.event("C")?;

assert_eq!("A -> B", &parser.to_string());

Possibly, it will use the caches to build the syntax string

Resources

• UML Statechart library in C and XMI importer
• State Machine Cat and XMI
• https://www.omg.org/spec/UML/About-UML/ (see Abstract Syntax Metamodel)