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When constructing a recognizer or parser from a context free grammar there are some properties of the language which must be calculated from the grammar irregardless of the type of parser being developed. Two such properties which make the automatic ge

The relation between stacks and expression evaluation is well established. Stack based evaluation is employed by every computer at some level. Infix and Postfix expressions lend themselves naturally to evaluation with a stack. But what about the stacks

A context free grammar is defined as a 4-tuple made up of a start symbol, sets, mainly the set of Terminal symbols, the set of Non-Terminal symbols, and the set of productions for deriving the language specified by the grammar. From this 4-tuple additi

Ever seen a B Tree made of Binary Search Trees before?

While implementing Owlscript I didnt want to crowd the grammar by having two different types of control flow which only differed by their syntax. This is the case in C-like languages were for loops serve more as syntactic sugaring of the while loop con