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Dictionary -- the class of all dictionaries

Description

A dictionary is a special sort of hash table whose keys are the strings, and whose values are the corresponding symbols.

i1 : Core.Dictionary # "sin"

o1 = sin

o1 : Symbol

i2 : Core.Dictionary #? "sin"

o2 = true

Types of dictionary :

GlobalDictionary -- the class of all global dictionaries
LocalDictionary -- the class of all local dictionaries

Methods that use a dictionary :

length(Dictionary) -- length of a dictionary
listSymbols(Dictionary), see listSymbols -- compact display of symbols and their values
localDictionaries(Dictionary), see localDictionaries -- get local dictionaries
package(Dictionary), see package -- get containing package

For the programmer

The object Dictionary is a type, with ancestor class Thing.