public RegExpPatternStep(String pattern, boolean caseSensitive) {
        this.pattern = Pattern.compile(getRegExPattern(pattern), caseSensitive?0:Pattern.CASE_INSENSITIVE);
    }

    @Override
    public String toString() {
        return "{regexp: " + pattern + "}";
    }

    protected static String getRegExPattern(String pattern) {
        StringBuilder result = new StringBuilder();

import static org.junit.Assert.assertTrue;

public class RegExpPatternStepTest {

    private void testPatternEscape(String expected, String pattern) {
        assertEquals(expected, RegExpPatternStep.getRegExPattern(pattern));
    }

    @Test public void testGetRegExpPattern() {
        testPatternEscape("literal", "literal");
        testPatternEscape("dotq.", "dotq?");
        testPatternEscape("star.*stuff", "star*stuff");