PPT Slide

PROPERTY LISTS

A PLIST (property list) is associated with each Lisp symbol.

-- ( get < symbol > < property name > )

retrieves values for that property.

-- ( setf (get < symbol > < property name > ) < value >)

associates the value with the property.

( setf ( get ' bob ' height ) 60 )

( get ' bob ' height )

-- ( remprop < symbol > < property name > )

removes this property from this symbol

( remprop ' bob ' height )

1.59

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