ck into text and returns it. The Parse Library recognizes a special grammar and set of expressions that include an interface to the Cell Library's data structures. Therefore, you can use the Cell and Parse Libraries together to form the basic underlying engine of a spreadsheet application.</P>
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You may want to familiarize yourself with how compilers work before you read this section. In particular, you should understand how scanners use regular expressions to translate raw text into token streams; and yo