How to use

LoopTag

in

jodd.servlet.tag

/**
 * Sets loop count.
 */
public void setCount(final int count) {
  setEnd(count);
  isCount = true;
}

loopTag.setStart(0);
loopTag.setEnd(2);
loopTag.doTag();
loopTag.setStep(2);
loopTag.doTag();
assertEquals(2, jspFragment.count);
loopTag.setEnd(5);
loopTag.setStep(1);
loopTag.doTag();
assertEquals(6, jspFragment.count);
loopTag.setStatus("s");
loopTag.doTag();
assertNull(jspContext.getAttribute("s"));    // attribute was cleared
loopTag.setModulus(3);
loopTag.doTag();

  @Override
  public void doTag() throws JspException {
    if (!isEndSpecified) {
      throw new IllegalArgumentException("End boundary of the loop is not specified");
    }

    prepareStepDirection();
    if (isCount) {
      if (end < 0) {
        throw new IllegalArgumentException("Negative count value");
      }
      end = start + step * (end - 1);
    }
    prepareStepDirection(autoDirection, false);


    // exclusive
    if (isExclusive) {
      if (step > 0) {
        this.end--;
      } else if (step < 0) {
        this.end++;
      }
    }

    loopBody();
  }
}

/**
 * Sets TO loop value (exclusive).
 */
public void setTo(final int to) {
  setEnd(to);
  isExclusive = true;
}