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package cg;
import java.util.List;
import java.util.ArrayList;
import java.util.regex.Pattern;
import java.util.regex.Matcher;
/**
* @author Sergey Mashkov (cy6erGn0m)
* @since 04.03.13
*/
public class JavaRegexpTest2 {
private final CharSequenceProxy seq;
private final List<String> patterns = new ArrayList<>();
public JavaRegexpTest2(CharSequence input) {
this.seq = new CharSequenceProxy(input);
}
public static void main(String[] args) {
String input = "7778889990223344556677889900112244334433";
new JavaRegexpTest2(input)
.findAll("[0123]123456|98765")
.printInfo();
new JavaRegexpTest2(input)
.findAll("98765|[0123]123456|7")
.printInfo();
new JavaRegexpTest2(input)
.findAll("[0123]123456")
.findAll("98765")
.printInfo();
}
private void printInfo() {
for (String pattern : patterns) {
System.out.print(pattern);
System.out.print(" ");
}
System.out.print(" - ");
System.out.println(seq.getCounter());
}
private JavaRegexpTest2 findAll(String pattern) {
findAll(Pattern.compile(pattern).matcher(seq));
patterns.add(pattern);
return this;
}
private static void findAll(Matcher m) {
while (m.find());
}
}
class CharSequenceProxy implements CharSequence {
private final CharSequence source;
private int counter = 0;
CharSequenceProxy(CharSequence source) {
this.source = source;
}
@Override
public int length() {
return source.length();
}
@Override
public char charAt(int index) {
counter++;
return source.charAt(index);
}
@Override
public CharSequence subSequence(int start, int end) {
throw new UnsupportedOperationException();
}
@Override
public String toString() {
return source.toString();
}
public int getCounter() {
return counter;
}
}
[0123]123456|98765 - 93
98765|[0123]123456|7 - 142
[0123]123456 98765 - 58
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