import org.joni.Syntax; //导入依赖的package包/类
public OnigRegExp(String source) {
	lastSearchStrUniqueId = null;
	lastSearchPosition = -1;
	lastSearchResult = null;
	byte[] pattern = source.getBytes(StandardCharsets.UTF_8);
	this.regex = new Regex(pattern, 0, pattern.length, Option.CAPTURE_GROUP, UTF8Encoding.INSTANCE, Syntax.DEFAULT,
			WarnCallback.DEFAULT);
}
 

import org.joni.Syntax; //导入依赖的package包/类
public JoniRegexEngine(String regex, int flags) {
  this.regex = regex;
  byte[] b = Bytes.toBytes(regex);
  this.pattern = new Regex(b, 0, b.length, patternToJoniFlags(flags), encoding, Syntax.Java);
}