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package main;
import org.antlr.v4.runtime.CharStream;
import org.antlr.v4.runtime.CharStreams;
import org.antlr.v4.runtime.CommonTokenStream;
import parser.CminusLexer;
import parser.CminusParser;
import submit.ASTVisitor;
import org.antlr.v4.runtime.Parser;
import submit.ast.Node;
import java.io.IOException;
import java.util.Properties;
import java.util.logging.Handler;
import java.util.logging.Level;
import java.util.logging.Logger;
public class Main {
private static Logger LOGGER;
/**
* @param args the command line arguments
* @throws java.io.IOException
*/
public static void main(String[] args) throws IOException {
// Logging setup
Level level = Level.INFO;
// TODO Enable trace-level code as needed. When true, LOGGER.fine() statements
// will be visible.
final boolean trace = true;
if (trace) {
level = Level.ALL;
}
Properties props = System.getProperties();
props.setProperty("java.util.logging.SimpleFormatter.format", "%5$s%6$s%n");
Logger.getLogger("").setLevel(level);
for (Handler handler : Logger.getLogger("").getHandlers()) {
handler.setLevel(level);
}
LOGGER = Logger.getLogger(Parser.class.getName());
// TODO Update the filename as needed
final String filename = "data/test1.c";
LOGGER.info("");
LOGGER.info("Parsing " + filename + "\n");
LOGGER.info("");
final CharStream charStream = CharStreams.fromFileName(filename);
CminusLexer lexer = new CminusLexer(charStream);
CommonTokenStream tokens = new CommonTokenStream(lexer);
CminusParser parser = new CminusParser(tokens);
parser.setBuildParseTree(true);
CminusParser.ProgramContext programCtx = parser.program();
// TODO Implement building of the parse tree
LOGGER.info("");
LOGGER.info("Building abstract syntax tree");
LOGGER.info("");
ASTVisitor v = new ASTVisitor(LOGGER);
Node ast = v.visitProgram(programCtx);
// TODO Output formatted code
LOGGER.info("");
LOGGER.info("Formatted code:");
LOGGER.info("");
StringBuilder builder = new StringBuilder();
try {
ast.toCminus(builder, "");
} finally {
LOGGER.info(builder.toString());
}
}
}
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