constraint_regex.java

来自「SRI international 发布的OAA框架软件」· Java 代码 · 共 55 行

/*
#=========================================================================
# Copyright 2003 SRI International.  All rights reserved.
#
# The material contained in this file is confidential and proprietary to SRI
# International and may not be reproduced, published, or disclosed to others
# without authorization from SRI International.
#
# DISCLAIMER OF WARRANTIES
#
# SRI International MAKES NO REPRESENTATIONS OR WARRANTIES ABOUT THE
# SUITABILITY OF THE SOFTWARE, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT
# LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
# PARTICULAR PURPOSE, OR NON-INFRINGEMENT. SRI International SHALL NOT BE
# LIABLE FOR ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING
# OR DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES
#=========================================================================
  Author : shardt
  Date: Aug 11, 2003
*/
package com.sri.oaa2.tools.oaatest;

import org.xml.sax.*;
import com.sri.oaa2.icl.*;
import java.util.regex.*;


class Constraint_regex extends Constraint {
  protected Constraint_regex(Attributes attribs,Locator loc) throws ParseException {
    super(attribs,loc);
    try {
      pattern = Pattern.compile(getAttribute(attribs,"value",loc));
    }
    catch (PatternSyntaxException e) {
      throw new ParseException("value attribute must be a valid regular expression",loc);      
    }
  }
  
  protected boolean checkValue(IclTerm actual) {
    String actualStr = actual.toString();
    return pattern.matcher(actualStr).matches();
  }

  /** Currently only used for SelfTest. */
  String getPattern() {
    return pattern.pattern();
  }
  
  public String toString() {
    return "regex(" + getVar().toString() + ',' + pattern.pattern() + ')';
  }
  
  private Pattern pattern;
}