here is a link to a simple calculator in lex and yacc, implementing something like our example

here is a link to a simple calculator in lex and yacc, implementing something like our example expression grammar calculatorThis is calc.lex and calc.yacc from Andrew Brinker – you may use these as youy starting point instead of the first link1. Implement it> 2. Add and exit/quit feature, so that you can enter one expression and then use the result as the start of another expression – for example:2 5 => 7/2 => 3.53. Add variables to the grammar – this requires modifying the grammar with an assign statement so you can set the values of a variable, and a print ot display statement so you can view the contents of the variable. You may implement it as an interpreter or a compiler

*** This is link for ‘calculator’ :: https://thegeekuday.wordpress.com/2012/11/14/calculator-program-using-yacc-and-lex/

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*** This is link for ‘calc.lex’ :: http://www.cse.csusb.edu/egomez/calc.lex

*** This is link for ‘calc.yacc’ :: http://www.cse.csusb.edu/egomez/calc.yacc

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