PseudoBooleanParser.java 文件源码

/**
 * Constructs a new parser for pseudo boolean formulas.
 * @param f the formula factory
 */
public PseudoBooleanParser(final FormulaFactory f) {
  super(f);
  this.lexer = new PseudoBooleanLexer(null);
  CommonTokenStream tokens = new CommonTokenStream(this.lexer);
  this.parser = new LogicNGPseudoBooleanParser(tokens);
  this.parser.setFormulaFactory(f);
  this.lexer.removeErrorListeners();
  this.parser.removeErrorListeners();
  this.parser.setErrorHandler(new BailErrorStrategy());
}