Rhino JavaScript Java Library is an open-source implementation of JavaScript written entirely in Java.

Rhino JavaScript Java Library Source Code files are provided in binary package (rhino-1.7.14.zip).

You can also browse the source code below:

⏎ org/mozilla/javascript/NativeStringIterator.java

/* -*- Mode: java; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

package org.mozilla.javascript;

public final class NativeStringIterator extends ES6Iterator {
    private static final long serialVersionUID = 1L;
    private static final String ITERATOR_TAG = "StringIterator";

    static void init(ScriptableObject scope, boolean sealed) {
        ES6Iterator.init(scope, sealed, new NativeStringIterator(), ITERATOR_TAG);
    }

    /**
     * Only for constructing the prototype object.
     */
    private NativeStringIterator() {
        super();
    }

    NativeStringIterator(Scriptable scope, Object stringLike) {
        super(scope, ITERATOR_TAG);
        this.index = 0;
        this.string  = ScriptRuntime.toString(stringLike);
    }

    @Override
    public String getClassName() {
        return "String Iterator";
    }

    @Override
    protected boolean isDone(Context cx, Scriptable scope) {
        return index >= string.length();
    }

    @Override
    protected Object nextValue(Context cx, Scriptable scope) {
        int newIndex = string.offsetByCodePoints(index, 1);
        Object value = string.substring(index, newIndex);
        index = newIndex;
        return value;
    }

    @Override
    protected String getTag() {
        return ITERATOR_TAG;
    }

    private String string;
    private int index;
}

⏎ org/mozilla/javascript/NativeStringIterator.java

Or download all of them as a single archive file:

File name: rhino-1.7.14-sources.jar
File size: 1029165 bytes
Release date: 2022-01-06
Download 

⇒ Example code to Test rhino-runtime-1.7.14.jar

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