How to create a antlr4 grammar which will parse date

Question

I want to parse few date format using following ANTLR4 grammar.

grammar Variables;
//varTable : tableNameFormat dateFormat? ;
//tableNameFormat: (ID SEPERATO         


        

Answer 1

I never worked on Antlr before, but when I looked in GitHub if someone already did which I want. Found this library.

here is a library to parse the date from String.

https://github.com/masasdani/nangka

add this project as a dependency of your project

   
        com.masasdani
        nangka
        0.0.6
    

Sample usage :

  String exprEn = "a month later, 20-11-90";
    Nangka nangka = new Nangka();
    DateUnit dateUnit = nangka.parse(exprEn);
    for(Date date : dateUnit.getRelatedDates()){
        System.out.println(date);
    }

Hope this helps someone like me who is searching.