parse library directly (instead of through the spreadsheet objects), they will call the parser and pass it a string, and the parser will in turn call the scanner to process the string into tokens. This section will not discuss how to call the parser, since few applications will need to do that; it will instead describe the general workings of the parser.</P>
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The parser translates a well-formed string into a sequence of tokens. It calls the scanner to read tokens from the string. It then uses a context-f