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yacc and lex

yacc and lex are tools for generating language parsers. We observed in Chapter 8 that your first minilanguage is all too likely to be an accident rather than a design. That accident is likely to have a hand-coded parser that costs you far too much maintenance and debugging time—especially if you have not realized it is a parser, and have thus failed to properly separate it from the remainder of your application code. more...

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