forked from jasder/antlr
34 lines
1.0 KiB
Java
34 lines
1.0 KiB
Java
import org.antlr.v4.runtime.CharStream;
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import org.antlr.v4.runtime.CommonTokenFactory;
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import org.antlr.v4.runtime.CommonTokenStream;
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import org.antlr.v4.runtime.DiagnosticErrorListener;
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import org.antlr.v4.runtime.ParserRuleContext;
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import org.antlr.v4.runtime.UnbufferedCharStream;
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import java.io.FileInputStream;
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import java.io.InputStream;
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public class TestT {
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public static void main(String[] args) throws Exception {
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String inputFile = null;
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if ( args.length>0 ) inputFile = args[0];
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InputStream is = System.in;
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if ( inputFile!=null ) {
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is = new FileInputStream(inputFile);
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}
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CharStream input = new UnbufferedCharStream(is);
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TLexer lex = new TLexer(input);
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lex.setTokenFactory(new CommonTokenFactory(true));
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CommonTokenStream tokens = new CommonTokenStream(lex);
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TParser parser = new TParser(tokens);
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parser.addErrorListener(new DiagnosticErrorListener());
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ParserRuleContext tree = parser.s();
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System.out.println(tree.toStringTree(parser));
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// tree.save(parser, "/tmp/t.ps");
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}
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}
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