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Thus we will need some basic tokens such as NAME, NUMBER, STRING. In any programming language, there will be space between two characters. Thus we create an ignore literal. Then we also create the basic literals like ‘=’, ‘+’ etc., NAME tokens are basically names of variables, which can be defined by the regular expression [a-zA-Z_][a-zA-Z0-9_]*. STRING tokens are string values and are bounded by quotation marks(” “). This can be defined by the regular expression \”.*?\”
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Thus we will need some basic tokens such as NAME, NUMBER, STRING. In any programming language, there will be space between two characters. Thus we create an ignore literal. Then we also create the basic literals like ‘=’, ‘+’ etc., NAME tokens are basically names of variables, which can be defined by the regular expression [a-zA-Z_][a-zA-Z0-9_]. STRING tokens are string values and are bounded by quotation marks(” “). This can be defined by the regular expression \”.?\”