ReturnTextPacket[string] is a MathLink packet containing string, the result of an EnterTextPacket evaluation.
"EvaluatorInterrupt" is a front end token that interrupts the specified kernel and opens the Local Kernel Interrupt dialog.
EnterTextPacket[string] is a MathLink packet that requests the parsing and evaluation of string as an expression.
StackBegin[expr] evaluates expr, starting a fresh evaluation stack.
StackInhibit[expr] evaluates expr without modifying the evaluation stack.
TraceOriginal is an option for Trace and related functions which specifies whether to test the form of each expression before its head and arguments are evaluated.
"EvaluatorQuit" is a front end token that terminates the specified kernel.
"EvaluatorStart" is a front end token that starts the specified kernel.
Stack
(Built-in Mathematica Symbol) Stack[] shows the current evaluation stack, giving a list of the tags associated with evaluations that are currently being done. Stack[pattern] gives a list of expressions ...
CellEpilog is an option for Cell which gives an expression to evaluate after each ordinary evaluation of the contents of the cell.