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Cannot get example working #19

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Jomy10 opened this issue Jul 26, 2023 · 1 comment
Closed

Cannot get example working #19

Jomy10 opened this issue Jul 26, 2023 · 1 comment

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@Jomy10
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Jomy10 commented Jul 26, 2023

I have adapted the SimpleExample.java

import java.io.File;
import java.io.FileInputStream;
import java.io.InputStream;

import ca.uqac.lif.bullwinkle.BnfParser;
import ca.uqac.lif.bullwinkle.ParseNode;
import ca.uqac.lif.bullwinkle.output.GraphvizVisitor;

public class CExt {
    public static void main(String[] args) {
        try {
            File bnfFile = new File(args[0]);
            InputStream bnfStream = new FileInputStream(bnfFile);

    		BnfParser parser = new BnfParser(bnfStream);
            parser.setDebugMode(true);
            ParseNode node2 = parser.parse("(10 + (3 - 4))");
            GraphvizVisitor visitor = new GraphvizVisitor();
            node2.prefixAccept(visitor);
            System.out.println(visitor.toOutputString());
        } catch (Exception e) {
            System.err.println("An error occured");
            e.printStackTrace();
        }
    }
}

The input bnf file is the Simple-Math.bnf

When I run this program, the node2 variable is null.
Here is the full output:

jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO: Considering input '(10 + (3 - 4))' with rule <exp> := <add> | <sub> | <mul> | <div> | - <exp> | <num>
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO: Alternative <add>
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:   Considering input '(10 + (3 - 4))' with rule <add> := <num> + <num> | <num> + ( <exp> ) | ( <exp> ) + <num> | ( <exp> ) + ( <exp> )
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:   Alternative <num> + <num>
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:     Considering input '(10 + (3 - 4))' with rule <num> := ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:     Alternative ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:     FAILED parsing with case ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:     FAILED: expected more symbols with rule <num> := ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:   FAILED parsing input (10 + (3 - 4)) with rule <add> := <num> + <num> | <num> + ( <exp> ) | ( <exp> ) + <num> | ( <exp> ) + ( <exp> )
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:   Alternative <num> + ( <exp> )
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:     Considering input '(10 + (3 - 4))' with rule <num> := ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:     Alternative ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:     FAILED parsing with case ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:     FAILED: expected more symbols with rule <num> := ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:   FAILED parsing input (10 + (3 - 4)) with rule <add> := <num> + <num> | <num> + ( <exp> ) | ( <exp> ) + <num> | ( <exp> ) + ( <exp> )
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:   Alternative ( <exp> ) + <num>
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:     Considering input '10 + (3 - 4))' with rule <exp> := <add> | <sub> | <mul> | <div> | - <exp> | <num>
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:     Alternative <add>
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:       Considering input '10 + (3 - 4))' with rule <add> := <num> + <num> | <num> + ( <exp> ) | ( <exp> ) + <num> | ( <exp> ) + ( <exp> )
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:       Alternative <num> + <num>
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:         Considering input '10 + (3 - 4))' with rule <num> := ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:         Alternative ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:         Considering input '(3 - 4))' with rule <num> := ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:         Alternative ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:         FAILED parsing with case ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:         FAILED: expected more symbols with rule <num> := ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:       FAILED parsing input 10 + (3 - 4)) with rule <add> := <num> + <num> | <num> + ( <exp> ) | ( <exp> ) + <num> | ( <exp> ) + ( <exp> )
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:       Alternative <num> + ( <exp> )
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:         Considering input '10 + (3 - 4))' with rule <num> := ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:         Alternative ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:         Considering input '3 - 4))' with rule <exp> := <add> | <sub> | <mul> | <div> | - <exp> | <num>
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:         Alternative <add>
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:           Considering input '3 - 4))' with rule <add> := <num> + <num> | <num> + ( <exp> ) | ( <exp> ) + <num> | ( <exp> ) + ( <exp> )
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:           Alternative <num> + <num>
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:             Considering input '3 - 4))' with rule <num> := ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:             Alternative ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:           FAILED parsing with case <num> + <num>
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:           Alternative <num> + ( <exp> )
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:             Considering input '3 - 4))' with rule <num> := ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:             Alternative ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:           FAILED parsing with case <num> + ( <exp> )
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:           Alternative ( <exp> ) + <num>
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:           FAILED parsing with case ( <exp> ) + <num>
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:           Alternative ( <exp> ) + ( <exp> )
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:           FAILED parsing with case ( <exp> ) + ( <exp> )
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:           FAILED: expected more symbols with rule <add> := <num> + <num> | <num> + ( <exp> ) | ( <exp> ) + <num> | ( <exp> ) + ( <exp> )
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:         FAILED parsing input 3 - 4)) with rule <exp> := <add> | <sub> | <mul> | <div> | - <exp> | <num>
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:         Alternative <sub>
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:           Considering input '3 - 4))' with rule <sub> := <num> - <num> | <num> - ( <exp> ) | ( <exp> ) - <num> | ( <exp> ) - ( <exp> )
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:           Alternative <num> - <num>
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:             Considering input '3 - 4))' with rule <num> := ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:             Alternative ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:             Considering input '4))' with rule <num> := ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:             Alternative ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:   Alternative ( <exp> ) + ( <exp> )
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:     Considering input '10 + (3 - 4))' with rule <exp> := <add> | <sub> | <mul> | <div> | - <exp> | <num>
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:     Alternative <add>
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:       Considering input '10 + (3 - 4))' with rule <add> := <num> + <num> | <num> + ( <exp> ) | ( <exp> ) + <num> | ( <exp> ) + ( <exp> )
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:       Alternative <num> + <num>
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:         Considering input '10 + (3 - 4))' with rule <num> := ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:         Alternative ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:         Considering input '(3 - 4))' with rule <num> := ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:         Alternative ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:         FAILED parsing with case ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:         FAILED: expected more symbols with rule <num> := ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:       FAILED parsing input 10 + (3 - 4)) with rule <add> := <num> + <num> | <num> + ( <exp> ) | ( <exp> ) + <num> | ( <exp> ) + ( <exp> )
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:       Alternative <num> + ( <exp> )
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:         Considering input '10 + (3 - 4))' with rule <num> := ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:         Alternative ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:         Considering input '3 - 4))' with rule <exp> := <add> | <sub> | <mul> | <div> | - <exp> | <num>
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:         Alternative <add>
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:           Considering input '3 - 4))' with rule <add> := <num> + <num> | <num> + ( <exp> ) | ( <exp> ) + <num> | ( <exp> ) + ( <exp> )
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:           Alternative <num> + <num>
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:             Considering input '3 - 4))' with rule <num> := ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:             Alternative ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:           FAILED parsing with case <num> + <num>
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:           Alternative <num> + ( <exp> )
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:             Considering input '3 - 4))' with rule <num> := ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:             Alternative ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:           FAILED parsing with case <num> + ( <exp> )
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:           Alternative ( <exp> ) + <num>
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:           FAILED parsing with case ( <exp> ) + <num>
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:           Alternative ( <exp> ) + ( <exp> )
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:           FAILED parsing with case ( <exp> ) + ( <exp> )
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:           FAILED: expected more symbols with rule <add> := <num> + <num> | <num> + ( <exp> ) | ( <exp> ) + <num> | ( <exp> ) + ( <exp> )
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:         FAILED parsing input 3 - 4)) with rule <exp> := <add> | <sub> | <mul> | <div> | - <exp> | <num>
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:         Alternative <sub>
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:           Considering input '3 - 4))' with rule <sub> := <num> - <num> | <num> - ( <exp> ) | ( <exp> ) - <num> | ( <exp> ) - ( <exp> )
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:           Alternative <num> - <num>
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:             Considering input '3 - 4))' with rule <num> := ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:             Alternative ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:             Considering input '4))' with rule <num> := ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:             Alternative ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:   FAILED: expected more symbols with rule <add> := <num> + <num> | <num> + ( <exp> ) | ( <exp> ) + <num> | ( <exp> ) + ( <exp> )
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO: FAILED parsing input (10 + (3 - 4)) with rule <exp> := <add> | <sub> | <mul> | <div> | - <exp> | <num>
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO: Alternative <sub>
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:   Considering input '(10 + (3 - 4))' with rule <sub> := <num> - <num> | <num> - ( <exp> ) | ( <exp> ) - <num> | ( <exp> ) - ( <exp> )
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:   Alternative <num> - <num>
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:     Considering input '(10 + (3 - 4))' with rule <num> := ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:     Alternative ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:     FAILED parsing with case ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:     FAILED: expected more symbols with rule <num> := ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:   FAILED parsing input (10 + (3 - 4)) with rule <sub> := <num> - <num> | <num> - ( <exp> ) | ( <exp> ) - <num> | ( <exp> ) - ( <exp> )
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:   Alternative <num> - ( <exp> )
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:     Considering input '(10 + (3 - 4))' with rule <num> := ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:     Alternative ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:     FAILED parsing with case ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:     FAILED: expected more symbols with rule <num> := ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:   FAILED parsing input (10 + (3 - 4)) with rule <sub> := <num> - <num> | <num> - ( <exp> ) | ( <exp> ) - <num> | ( <exp> ) - ( <exp> )
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:   Alternative ( <exp> ) - <num>
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:     Considering input '10 + (3 - 4))' with rule <exp> := <add> | <sub> | <mul> | <div> | - <exp> | <num>
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:     Alternative <add>
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:       Considering input '10 + (3 - 4))' with rule <add> := <num> + <num> | <num> + ( <exp> ) | ( <exp> ) + <num> | ( <exp> ) + ( <exp> )
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:       Alternative <num> + <num>
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:         Considering input '10 + (3 - 4))' with rule <num> := ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:         Alternative ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:         Considering input '(3 - 4))' with rule <num> := ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:         Alternative ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:         FAILED parsing with case ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:         FAILED: expected more symbols with rule <num> := ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:       FAILED parsing input 10 + (3 - 4)) with rule <add> := <num> + <num> | <num> + ( <exp> ) | ( <exp> ) + <num> | ( <exp> ) + ( <exp> )
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:       Alternative <num> + ( <exp> )
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:         Considering input '10 + (3 - 4))' with rule <num> := ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:         Alternative ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:         Considering input '3 - 4))' with rule <exp> := <add> | <sub> | <mul> | <div> | - <exp> | <num>
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:         Alternative <add>
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:           Considering input '3 - 4))' with rule <add> := <num> + <num> | <num> + ( <exp> ) | ( <exp> ) + <num> | ( <exp> ) + ( <exp> )
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:           Alternative <num> + <num>
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:             Considering input '3 - 4))' with rule <num> := ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:             Alternative ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:           FAILED parsing with case <num> + <num>
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:           Alternative <num> + ( <exp> )
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:             Considering input '3 - 4))' with rule <num> := ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:             Alternative ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:           FAILED parsing with case <num> + ( <exp> )
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:           Alternative ( <exp> ) + <num>
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:           FAILED parsing with case ( <exp> ) + <num>
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:           Alternative ( <exp> ) + ( <exp> )
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:           FAILED parsing with case ( <exp> ) + ( <exp> )
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:           FAILED: expected more symbols with rule <add> := <num> + <num> | <num> + ( <exp> ) | ( <exp> ) + <num> | ( <exp> ) + ( <exp> )
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:         FAILED parsing input 3 - 4)) with rule <exp> := <add> | <sub> | <mul> | <div> | - <exp> | <num>
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:         Alternative <sub>
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:           Considering input '3 - 4))' with rule <sub> := <num> - <num> | <num> - ( <exp> ) | ( <exp> ) - <num> | ( <exp> ) - ( <exp> )
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:           Alternative <num> - <num>
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:             Considering input '3 - 4))' with rule <num> := ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:             Alternative ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:             Considering input '4))' with rule <num> := ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:             Alternative ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:   Alternative ( <exp> ) - ( <exp> )
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:     Considering input '10 + (3 - 4))' with rule <exp> := <add> | <sub> | <mul> | <div> | - <exp> | <num>
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:     Alternative <add>
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:       Considering input '10 + (3 - 4))' with rule <add> := <num> + <num> | <num> + ( <exp> ) | ( <exp> ) + <num> | ( <exp> ) + ( <exp> )
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:       Alternative <num> + <num>
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:         Considering input '10 + (3 - 4))' with rule <num> := ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:         Alternative ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:         Considering input '(3 - 4))' with rule <num> := ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:         Alternative ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:         FAILED parsing with case ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:         FAILED: expected more symbols with rule <num> := ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:       FAILED parsing input 10 + (3 - 4)) with rule <add> := <num> + <num> | <num> + ( <exp> ) | ( <exp> ) + <num> | ( <exp> ) + ( <exp> )
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:       Alternative <num> + ( <exp> )
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:         Considering input '10 + (3 - 4))' with rule <num> := ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:         Alternative ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:         Considering input '3 - 4))' with rule <exp> := <add> | <sub> | <mul> | <div> | - <exp> | <num>
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:         Alternative <add>
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:           Considering input '3 - 4))' with rule <add> := <num> + <num> | <num> + ( <exp> ) | ( <exp> ) + <num> | ( <exp> ) + ( <exp> )
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:           Alternative <num> + <num>
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:             Considering input '3 - 4))' with rule <num> := ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:             Alternative ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:           FAILED parsing with case <num> + <num>
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:           Alternative <num> + ( <exp> )
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:             Considering input '3 - 4))' with rule <num> := ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:             Alternative ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:           FAILED parsing with case <num> + ( <exp> )
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:           Alternative ( <exp> ) + <num>
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:           FAILED parsing with case ( <exp> ) + <num>
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:           Alternative ( <exp> ) + ( <exp> )
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:           FAILED parsing with case ( <exp> ) + ( <exp> )
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:           FAILED: expected more symbols with rule <add> := <num> + <num> | <num> + ( <exp> ) | ( <exp> ) + <num> | ( <exp> ) + ( <exp> )
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:         FAILED parsing input 3 - 4)) with rule <exp> := <add> | <sub> | <mul> | <div> | - <exp> | <num>
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:         Alternative <sub>
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:           Considering input '3 - 4))' with rule <sub> := <num> - <num> | <num> - ( <exp> ) | ( <exp> ) - <num> | ( <exp> ) - ( <exp> )
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:           Alternative <num> - <num>
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:             Considering input '3 - 4))' with rule <num> := ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:             Alternative ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:             Considering input '4))' with rule <num> := ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:             Alternative ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:   FAILED: expected more symbols with rule <sub> := <num> - <num> | <num> - ( <exp> ) | ( <exp> ) - <num> | ( <exp> ) - ( <exp> )
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO: FAILED parsing input (10 + (3 - 4)) with rule <exp> := <add> | <sub> | <mul> | <div> | - <exp> | <num>
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO: Alternative <mul>
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:   Considering input '(10 + (3 - 4))' with rule <mul> := <num> × <num> | <num> × ( <exp> ) | ( <exp> ) × <num> | ( <exp> ) × ( <exp> )
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:   Alternative <num> × <num>
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:     Considering input '(10 + (3 - 4))' with rule <num> := ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:     Alternative ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:     FAILED parsing with case ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:     FAILED: expected more symbols with rule <num> := ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:   FAILED parsing input (10 + (3 - 4)) with rule <mul> := <num> × <num> | <num> × ( <exp> ) | ( <exp> ) × <num> | ( <exp> ) × ( <exp> )
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:   Alternative <num> × ( <exp> )
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:     Considering input '(10 + (3 - 4))' with rule <num> := ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:     Alternative ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:     FAILED parsing with case ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:     FAILED: expected more symbols with rule <num> := ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:   FAILED parsing input (10 + (3 - 4)) with rule <mul> := <num> × <num> | <num> × ( <exp> ) | ( <exp> ) × <num> | ( <exp> ) × ( <exp> )
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:   Alternative ( <exp> ) × <num>
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:     Considering input '10 + (3 - 4))' with rule <exp> := <add> | <sub> | <mul> | <div> | - <exp> | <num>
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:     Alternative <add>
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:       Considering input '10 + (3 - 4))' with rule <add> := <num> + <num> | <num> + ( <exp> ) | ( <exp> ) + <num> | ( <exp> ) + ( <exp> )
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:       Alternative <num> + <num>
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:         Considering input '10 + (3 - 4))' with rule <num> := ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:         Alternative ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:         Considering input '(3 - 4))' with rule <num> := ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:         Alternative ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:         FAILED parsing with case ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:         FAILED: expected more symbols with rule <num> := ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:       FAILED parsing input 10 + (3 - 4)) with rule <add> := <num> + <num> | <num> + ( <exp> ) | ( <exp> ) + <num> | ( <exp> ) + ( <exp> )
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:       Alternative <num> + ( <exp> )
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:         Considering input '10 + (3 - 4))' with rule <num> := ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:         Alternative ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:         Considering input '3 - 4))' with rule <exp> := <add> | <sub> | <mul> | <div> | - <exp> | <num>
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:         Alternative <add>
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:           Considering input '3 - 4))' with rule <add> := <num> + <num> | <num> + ( <exp> ) | ( <exp> ) + <num> | ( <exp> ) + ( <exp> )
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:           Alternative <num> + <num>
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:             Considering input '3 - 4))' with rule <num> := ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:             Alternative ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:           FAILED parsing with case <num> + <num>
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:           Alternative <num> + ( <exp> )
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:             Considering input '3 - 4))' with rule <num> := ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:             Alternative ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:           FAILED parsing with case <num> + ( <exp> )
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:           Alternative ( <exp> ) + <num>
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:           FAILED parsing with case ( <exp> ) + <num>
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:           Alternative ( <exp> ) + ( <exp> )
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:           FAILED parsing with case ( <exp> ) + ( <exp> )
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:           FAILED: expected more symbols with rule <add> := <num> + <num> | <num> + ( <exp> ) | ( <exp> ) + <num> | ( <exp> ) + ( <exp> )
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:         FAILED parsing input 3 - 4)) with rule <exp> := <add> | <sub> | <mul> | <div> | - <exp> | <num>
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:         Alternative <sub>
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:           Considering input '3 - 4))' with rule <sub> := <num> - <num> | <num> - ( <exp> ) | ( <exp> ) - <num> | ( <exp> ) - ( <exp> )
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:           Alternative <num> - <num>
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:             Considering input '3 - 4))' with rule <num> := ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:             Alternative ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:             Considering input '4))' with rule <num> := ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:             Alternative ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:   Alternative ( <exp> ) × ( <exp> )
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:     Considering input '10 + (3 - 4))' with rule <exp> := <add> | <sub> | <mul> | <div> | - <exp> | <num>
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:     Alternative <add>
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:       Considering input '10 + (3 - 4))' with rule <add> := <num> + <num> | <num> + ( <exp> ) | ( <exp> ) + <num> | ( <exp> ) + ( <exp> )
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:       Alternative <num> + <num>
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:         Considering input '10 + (3 - 4))' with rule <num> := ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:         Alternative ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:         Considering input '(3 - 4))' with rule <num> := ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:         Alternative ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:         FAILED parsing with case ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:         FAILED: expected more symbols with rule <num> := ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:       FAILED parsing input 10 + (3 - 4)) with rule <add> := <num> + <num> | <num> + ( <exp> ) | ( <exp> ) + <num> | ( <exp> ) + ( <exp> )
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:       Alternative <num> + ( <exp> )
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:         Considering input '10 + (3 - 4))' with rule <num> := ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:         Alternative ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:         Considering input '3 - 4))' with rule <exp> := <add> | <sub> | <mul> | <div> | - <exp> | <num>
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:         Alternative <add>
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:           Considering input '3 - 4))' with rule <add> := <num> + <num> | <num> + ( <exp> ) | ( <exp> ) + <num> | ( <exp> ) + ( <exp> )
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:           Alternative <num> + <num>
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:             Considering input '3 - 4))' with rule <num> := ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:             Alternative ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:           FAILED parsing with case <num> + <num>
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:           Alternative <num> + ( <exp> )
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:             Considering input '3 - 4))' with rule <num> := ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:             Alternative ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:           FAILED parsing with case <num> + ( <exp> )
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:           Alternative ( <exp> ) + <num>
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:           FAILED parsing with case ( <exp> ) + <num>
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:           Alternative ( <exp> ) + ( <exp> )
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:           FAILED parsing with case ( <exp> ) + ( <exp> )
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:           FAILED: expected more symbols with rule <add> := <num> + <num> | <num> + ( <exp> ) | ( <exp> ) + <num> | ( <exp> ) + ( <exp> )
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:         FAILED parsing input 3 - 4)) with rule <exp> := <add> | <sub> | <mul> | <div> | - <exp> | <num>
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:         Alternative <sub>
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:           Considering input '3 - 4))' with rule <sub> := <num> - <num> | <num> - ( <exp> ) | ( <exp> ) - <num> | ( <exp> ) - ( <exp> )
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:           Alternative <num> - <num>
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:             Considering input '3 - 4))' with rule <num> := ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:             Alternative ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:             Considering input '4))' with rule <num> := ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:             Alternative ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:   FAILED: expected more symbols with rule <mul> := <num> × <num> | <num> × ( <exp> ) | ( <exp> ) × <num> | ( <exp> ) × ( <exp> )
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO: FAILED parsing input (10 + (3 - 4)) with rule <exp> := <add> | <sub> | <mul> | <div> | - <exp> | <num>
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO: Alternative <div>
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:   Considering input '(10 + (3 - 4))' with rule <div> := <num> ÷ <num> | <num> ÷ ( <exp> ) | ( <exp> ) ÷ <num> | ( <exp> ) ÷ ( <exp> )
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:   Alternative <num> ÷ <num>
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:     Considering input '(10 + (3 - 4))' with rule <num> := ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:     Alternative ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:     FAILED parsing with case ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:     FAILED: expected more symbols with rule <num> := ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:   FAILED parsing input (10 + (3 - 4)) with rule <div> := <num> ÷ <num> | <num> ÷ ( <exp> ) | ( <exp> ) ÷ <num> | ( <exp> ) ÷ ( <exp> )
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:   Alternative <num> ÷ ( <exp> )
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:     Considering input '(10 + (3 - 4))' with rule <num> := ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:     Alternative ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:     FAILED parsing with case ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:     FAILED: expected more symbols with rule <num> := ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:   FAILED parsing input (10 + (3 - 4)) with rule <div> := <num> ÷ <num> | <num> ÷ ( <exp> ) | ( <exp> ) ÷ <num> | ( <exp> ) ÷ ( <exp> )
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:   Alternative ( <exp> ) ÷ <num>
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:     Considering input '10 + (3 - 4))' with rule <exp> := <add> | <sub> | <mul> | <div> | - <exp> | <num>
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:     Alternative <add>
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:       Considering input '10 + (3 - 4))' with rule <add> := <num> + <num> | <num> + ( <exp> ) | ( <exp> ) + <num> | ( <exp> ) + ( <exp> )
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:       Alternative <num> + <num>
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:         Considering input '10 + (3 - 4))' with rule <num> := ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:         Alternative ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:         Considering input '(3 - 4))' with rule <num> := ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:         Alternative ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:         FAILED parsing with case ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:         FAILED: expected more symbols with rule <num> := ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:       FAILED parsing input 10 + (3 - 4)) with rule <add> := <num> + <num> | <num> + ( <exp> ) | ( <exp> ) + <num> | ( <exp> ) + ( <exp> )
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:       Alternative <num> + ( <exp> )
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:         Considering input '10 + (3 - 4))' with rule <num> := ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:         Alternative ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:         Considering input '3 - 4))' with rule <exp> := <add> | <sub> | <mul> | <div> | - <exp> | <num>
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:         Alternative <add>
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:           Considering input '3 - 4))' with rule <add> := <num> + <num> | <num> + ( <exp> ) | ( <exp> ) + <num> | ( <exp> ) + ( <exp> )
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:           Alternative <num> + <num>
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:             Considering input '3 - 4))' with rule <num> := ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:             Alternative ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:           FAILED parsing with case <num> + <num>
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:           Alternative <num> + ( <exp> )
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:             Considering input '3 - 4))' with rule <num> := ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:             Alternative ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:           FAILED parsing with case <num> + ( <exp> )
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:           Alternative ( <exp> ) + <num>
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:           FAILED parsing with case ( <exp> ) + <num>
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:           Alternative ( <exp> ) + ( <exp> )
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:           FAILED parsing with case ( <exp> ) + ( <exp> )
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:           FAILED: expected more symbols with rule <add> := <num> + <num> | <num> + ( <exp> ) | ( <exp> ) + <num> | ( <exp> ) + ( <exp> )
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:         FAILED parsing input 3 - 4)) with rule <exp> := <add> | <sub> | <mul> | <div> | - <exp> | <num>
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:         Alternative <sub>
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:           Considering input '3 - 4))' with rule <sub> := <num> - <num> | <num> - ( <exp> ) | ( <exp> ) - <num> | ( <exp> ) - ( <exp> )
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:           Alternative <num> - <num>
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:             Considering input '3 - 4))' with rule <num> := ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:             Alternative ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:             Considering input '4))' with rule <num> := ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:             Alternative ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:   Alternative ( <exp> ) ÷ ( <exp> )
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:     Considering input '10 + (3 - 4))' with rule <exp> := <add> | <sub> | <mul> | <div> | - <exp> | <num>
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:     Alternative <add>
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:       Considering input '10 + (3 - 4))' with rule <add> := <num> + <num> | <num> + ( <exp> ) | ( <exp> ) + <num> | ( <exp> ) + ( <exp> )
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:       Alternative <num> + <num>
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:         Considering input '10 + (3 - 4))' with rule <num> := ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:         Alternative ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:         Considering input '(3 - 4))' with rule <num> := ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:         Alternative ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:         FAILED parsing with case ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:         FAILED: expected more symbols with rule <num> := ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:       FAILED parsing input 10 + (3 - 4)) with rule <add> := <num> + <num> | <num> + ( <exp> ) | ( <exp> ) + <num> | ( <exp> ) + ( <exp> )
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:       Alternative <num> + ( <exp> )
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:         Considering input '10 + (3 - 4))' with rule <num> := ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:         Alternative ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:         Considering input '3 - 4))' with rule <exp> := <add> | <sub> | <mul> | <div> | - <exp> | <num>
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:         Alternative <add>
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:           Considering input '3 - 4))' with rule <add> := <num> + <num> | <num> + ( <exp> ) | ( <exp> ) + <num> | ( <exp> ) + ( <exp> )
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:           Alternative <num> + <num>
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:             Considering input '3 - 4))' with rule <num> := ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:             Alternative ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:           FAILED parsing with case <num> + <num>
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:           Alternative <num> + ( <exp> )
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:             Considering input '3 - 4))' with rule <num> := ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:             Alternative ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:           FAILED parsing with case <num> + ( <exp> )
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:           Alternative ( <exp> ) + <num>
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:           FAILED parsing with case ( <exp> ) + <num>
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:           Alternative ( <exp> ) + ( <exp> )
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:           FAILED parsing with case ( <exp> ) + ( <exp> )
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:           FAILED: expected more symbols with rule <add> := <num> + <num> | <num> + ( <exp> ) | ( <exp> ) + <num> | ( <exp> ) + ( <exp> )
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:         FAILED parsing input 3 - 4)) with rule <exp> := <add> | <sub> | <mul> | <div> | - <exp> | <num>
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:         Alternative <sub>
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:           Considering input '3 - 4))' with rule <sub> := <num> - <num> | <num> - ( <exp> ) | ( <exp> ) - <num> | ( <exp> ) - ( <exp> )
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:           Alternative <num> - <num>
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:             Considering input '3 - 4))' with rule <num> := ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:             Alternative ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:             Considering input '4))' with rule <num> := ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:             Alternative ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:   FAILED: expected more symbols with rule <div> := <num> ÷ <num> | <num> ÷ ( <exp> ) | ( <exp> ) ÷ <num> | ( <exp> ) ÷ ( <exp> )
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO: FAILED parsing input (10 + (3 - 4)) with rule <exp> := <add> | <sub> | <mul> | <div> | - <exp> | <num>
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO: Alternative - <exp>
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO: FAILED parsing with case - <exp>
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO: Alternative <num>
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:   Considering input '(10 + (3 - 4))' with rule <num> := ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:   Alternative ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:   FAILED parsing with case ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO:   FAILED: expected more symbols with rule <num> := ^[0-9]+
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO: FAILED parsing input (10 + (3 - 4)) with rule <exp> := <add> | <sub> | <mul> | <div> | - <exp> | <num>
jul. 26, 2023 12:54:21 P.M. ca.uqac.lif.bullwinkle.BnfParser log
INFO: FAILED: expected more symbols with rule <exp> := <add> | <sub> | <mul> | <div> | - <exp> | <num>
An error occured
java.lang.NullPointerException
        at CExt.main(CExt.java:19)
@sylvainhalle
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The output is correct, as your expression is not part of the grammar: it has extra parentheses surrounding the whole expression.

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@sylvainhalle @Jomy10