Syntax (pgpainless-core 1.6.9 API)

All Known Implementing Classes:: OpenPgpMessageSyntax

public interface Syntax

This interface can be used to define a custom syntax for the PDA.

Method Summary

Modifier and Type

Method

Description

Transition

transition(State from, InputSymbol input, StackSymbol stackItem)

Describe a transition rule from State

Method Details
- transition
  
  @Nonnull Transition transition(@Nonnull State from, @Nonnull InputSymbol input, @Nullable StackSymbol stackItem) throws MalformedOpenPgpMessageException
  Describe a transition rule from State
  from
  for InputSymbol
  input
  with StackSymbol
  stackItem
  from the top of the PDAs stack. The resulting Transition contains the new State, as well as a list of StackSymbols that get pushed onto the stack by the transition rule. If there is no applicable rule, a MalformedOpenPgpMessageException is thrown, since in this case the InputSymbol must be considered illegal.
  Parameters:
  
  from - current state of the PDA
  
  input - input symbol
  
  stackItem - item that got popped from the top of the stack
  
  Returns:
  
  applicable transition rule containing the new state and pushed stack symbols
  
  Throws:
  
  MalformedOpenPgpMessageException - if there is no applicable transition rule (the input symbol is illegal)