4.2.1. Simple Rule

[Tip]Description

A simple rule is such an ASM rule that does not contain nested ASM rules.

A simple rule can change control flow (like skip rule, fail rule, or call rule), variables (like update rule), and it may print or log during execution (like print rule or log rule.

[Important]Syntax
SimpleRuleAST ::= SkipRuleAST | FailRuleAST 
                | CallRuleAST | UpdateRuleAST 
                | PrintRuleAST | LogRuleAST