xyz_validator 0.2.0

Basic usage

use xyz_validator::{RqlValidator, ValidatorInterface};

fn main() {
    //test a valid rql
    let valid_rql_statement = "or(and(eq(name,John),eq(surname,Doe)),eq(surname,Smith))".to_owned();
    let rql_validator: Box<dyn ValidatorInterface> = Box::new(RqlValidator::new(None));
    assert!(rql_validator.is_valid(valid_rql_statement));

    //test an invalid rql, we want to see errors
    let invalid_rql_statement = "and(eq(name,John),eq(surname,Doe),eq(surname,Smith))".to_owned();

    //define a callback function to do something with an error message - here we print the error message to stderr
    fn print_errors(error_message: &str) {
        eprintln!("{}", error_message);
    }

    let rql_validator: Box<dyn ValidatorInterface> =
        Box::new(RqlValidator::new(Some(print_errors)));
    //It will print "Node 'and' should have 2 nested nodes" to stderr
    assert!(!rql_validator.is_valid(invalid_rql_statement));
}