stack Module

a ⇒ ∅

Empties the stack.

a₁ (quot_*) ⇒ a_*

Applies each quotation contained in the first element to the second element a₁.

a₁ (a_*) ⇒ (a₁ a_*)

Prepends a₁ to the quotation on top of the stack.

a₁ (a₂) ⇒ a_* a₁

Removes the first and second element from the stack, dequotes the first element, and restores the second element.

a₁ ⇒ a₁ a₁

Duplicates the first element on the stack.

∅ ⇒ (a_*)

Puts a quotation containing the contents of the stack on the stack.

a₁ quot ⇒ a_* a₁

Removes the first element from the stack, dequotes it, and restores the second element.

a₁ a₂ ⇒ a₂

Removes the second element from the stack.

a₁ a₂ ⇒ a₁ a₂ a₁

Pushes a copy of the second element on top of the stack.

a₁ a₂ a₃ ⇒ a₁ a₂ a₃ a₁

Pushes a copy of the third element on top of the stack.

a ⇒ ∅

Removes the first element from the stack.

a₁ a₂ a₃ ⇒ a₂ a₃ a₁

Moves the third element in first position, the second in third position and the the first in second position.

a₁ a₂ a₃ ⇒ a₃ a₂ a₁

Moves the third and second element into second and third position and moves the first element into third position.

quot ⇒ a_*

Substitute the existing stack with the contents of quot.

quot₁ quot₂ ⇒ a_* quot₁

Saves the quot₁, dequotes quot₂, and restores quot₁.

a_* (quot_*) ⇒ a_*

Applies each quotation contained in the first element to each subsequent corresponding element.

a₁ a₂ ⇒ a₂ a₁

Swaps the first two elements on the stack.

(a_*) a₁ ⇒ (a₁ a_*)

Prepends a₁ to the quotation that follows it.