/*

 * Copyright (c) 2019, Oracle and/or its affiliates. All rights reserved.

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.

 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

 * or visit www.oracle.com if you need additional information or have any

 * questions.

 */

/*

 * @test

 * @bug 8223780

 * @summary This exercises String#translateEscapes patterns and limits.

 */

public class TranslateEscapes {

    public static void main(String... arg) {

        test1();

        test2();

        test3();

    }

    /*

     * Standard escapes.

     */

    static void test1() {

        verifyEscape("b", '\b');

        verifyEscape("f", '\f');

        verifyEscape("n", '\n');

        verifyEscape("r", '\r');

        verifyEscape("t", '\t');

        verifyEscape("'", '\'');

        verifyEscape("\"", '\"');

        verifyEscape("\\", '\\');

    }

    /*

     * Octal escapes.

     */

    static void test2() {

        verifyOctalEscape("0", 0);

        verifyOctalEscape("3", 03);

        verifyOctalEscape("7", 07);

        verifyOctalEscape("07", 07);

        verifyOctalEscape("17", 017);

        verifyOctalEscape("27", 027);

        verifyOctalEscape("37", 037);

        verifyOctalEscape("377", 0377);

        verifyOctalEscape("777", 077);

        verifyOctalEscape("78", 07);

    }

    /*

     * Exceptions.

     */

    static void test3() {

        exceptionThrown("+");

        exceptionThrown("\n");

    }

    static void verifyEscape(String string, char ch) {

        String escapes = "\\" + string;

        if (escapes.translateEscapes().charAt(0) != ch) {

            System.err.format("\"%s\" not escape \"%s\"'%n", string, escapes);

            throw new RuntimeException();

        }

    }

    static void verifyOctalEscape(String string, int octal) {

        String escapes = "\\" + string;

        if (escapes.translateEscapes().charAt(0) != octal) {

            System.err.format("\"%s\" not octal %o%n", string, octal);

            throw new RuntimeException();

        }

    }

    static void exceptionThrown(String string) {

        String escapes = "\\" + string;

        try {

            escapes.translateEscapes();

            System.err.format("escape not thrown for %s%n", string);

            throw new RuntimeException();

        } catch (IllegalArgumentException ex) {

            // okay

        }

    }

}