JSON-java/JSONExpression.java at master · Zmaster/JSON-java · GitHub

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package org.json;

import java.util.Arrays;

import java.util.List;

import java.util.regex.Pattern;

/**

* Simple JSON expression. The expression is just a sequence of

* names separated by periods to be evaluated. Maybe extend it later

* to be a little more.

* @author stella

public class JSONExpression {

private static final Pattern SEP_PATTERN=Pattern.compile("\\.");

private List<String> components;

public JSONExpression(String expression) {

this(parse(expression));

}

public JSONExpression(List<String> components) {

this.components=components;

}

public static List<String> parse(String expression) {

return Arrays.asList(SEP_PATTERN.split(expression));

}

public int length() {

return components.size();

}

public String at(int i) {

return components.get(i);

}

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