Syntax Analyzer-parser / Java


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Dear Java coder, This is a practical work from university. In a few words, I need a simple/primitive syntax analyzer and parser. In detail: I have a Lexical analyzer (scanner) already coded (!) that reads a file with a custom syntax written (accordingly to the BNF that is written too!). It simply understands what symbols like ‘=‘, ‘lt;‘, ‘gt;‘ mean, where identificator or a string ("hello, name") or a function is etc. Now I need to boost the analyzer up to the Syntax analyzer (parser). It needs to analyze a custom code, report if syntax errors found, what and where are they and create a XML that indicates syntax structure. The code that needs to be analyzed is very basic. for example: *** program test; int testFunction (int param1, int param2)  begin    int param3;    param3 = param1 + param2;    return param3;  end; main  begin    int a1,a2,a3;    if (!a1)    begin    a3 = testFunction(a1,a2);   end    while (a1 == 3) do    begin print(a3); aa = "aa aa"; a1 = (a1 - 3) end; end. *** The XML it should output would look like: *** lt;programgt;testlt;/programgt;   lt;function type="int"gt;testFunctionlt;/functiongt;      lt;id type="int"gt;param3lt;/idgt;         ...... *** The Lexical analyzer is the file attached. Note, that you do not need to rewrite the code from scratch - just boost the current. Every new line should be commented: simple descriptive sentence. You should use only standard Java libraries. The program should compile using "javac". My preferred work principle: (1) I select a you (2) I get Class files as a test files to test if it works as requested (3) In case it's all fine we proceed with the payment and source files. Thank you!


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