KRL Expression Language

KRL contains a complete expression language for use inside rules. This section describes the operation of the expression language.

• Literals
  • Booleans
  • Numbers
  • Hex
  • Strings
  • Regular Expressions
  • Arrays
  • Maps
  • Extended Quoting
  • Beestings
• Identifiers
• Predicate Expressions
• Arithmetic Expressions
• String Expressions
• Conditional Expressions
• Functions
  • Using Optional and Named Parameters
• User-Defined Actions
• Operators
  • Universal Operators
  • Number Operators
  • String Operators
  • Array Operators
  • Map Operators
  • Set Operators
  • Hex Operators
  • Boolean Operators
• pick() and query()
  • query()
  • pick()
• Flow Control