What is the best way to handle multiple Flex/Bison parsers inside a project?
I wrote a parser and now I need a second one in the same project. So far in the third section of parser1.y I inserted the main(..) method and called yyparse from there.
What I want to obtain is having two different parsers (parser1.y and parser2.y) and be able to use them from an external function (let’s assume main in main.cpp).
Which precautions should I use to export yyparse functions outside .y files and how should I handle two parsers?
PS. I’m using g++ to compile but not the C++ versions of Flex and Bison and I would like to keep it this way (so avoiding encapsulating the parser inside an object).
Note that Bison provides the ‘-p zz’ option to prefix symbols with ‘zz’ instead of ‘yy’.
Similarly, Flex provides the ‘-P zz’ option to prefix symbols with ‘zz’ instead of ‘yy’. It uses ‘-p’ for performance reporting. ‘Tis a pity they are not consistent with each other.