Context Switch Callback

Notification callback for grammar context transitions. More...

Typedefs
typedef bool(*	ContextSwitchCallback) (GrammarMode prev_mode, GrammarMode new_mode, void *user_data)
	Called when a context switch occurs.

Detailed Description

Notification callback for grammar context transitions.

Typedef Documentation

ContextSwitchCallback

typedef bool(* ContextSwitchCallback) (GrammarMode prev_mode, GrammarMode new_mode, void *user_data)

#include <include/grammar_context.h>

Called when a context switch occurs.

Allows the application to save/restore parser state across grammar boundaries.

Parameters

prev_mode	Mode being left.
new_mode	Mode being entered.
user_data	Pointer registered with grammar_context_set_switch_callback().

Return values

true	Allow the switch.
false	Veto the switch (context remains unchanged).

Definition at line 172 of file grammar_context.h.