Question: Design a DTD for arithmetic expressions, as described in Special Topic 25.1. Data from special topic 25.1 Special Topic 25.1 Grammars, Parsers, and Compilers Grammars

Design a DTD for arithmetic expressions, as described in Special Topic 25.1.

Data from special topic 25.1

Special Topic 25.1 Grammars, Parsers, and Compilers Grammars are very important in

many areas of computer science to describe the structure of computer programs

or data formats. To introduce the concept of a grammar, consider this

set of rules for a set of simple English language sentences: 1.

A sentence has a noun phrase followed by a verb and another

noun phrase. 2. A noun phrase consists of an article followed by

Special Topic 25.1 Grammars, Parsers, and Compilers Grammars are very important in many areas of computer science to describe the structure of computer programs or data formats. To introduce the concept of a grammar, consider this set of rules for a set of simple English language sentences: 1. A sentence has a noun phrase followed by a verb and another noun phrase. 2. A noun phrase consists of an article followed by an adjective list followed by a noun. 3. An adjective list consists of an adjective or an adjective followed by an adjective list. 4. Articles are "a" and "the". 5. Adjectives are "quick", "brown", "lazy", and "hungry".

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