org.codehaus.jparsec.pattern.PeekPattern Maven / Gradle / Ivy

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There is a newer version: 3.1

package org.codehaus.jparsec.pattern;

class PeekPattern extends Pattern {

  private final Pattern pp;

  public PeekPattern(Pattern pp) {
    this.pp = pp;
  }

  @Override
  public int match(CharSequence src, int begin, int end) {
    if (pp.match(src, begin, end) == Pattern.MISMATCH)
      return Pattern.MISMATCH;
    else
      return 0;
  }

  @Override
  public String toString() {
    return "(?:" + pp.toString() + ")";
  }
}