126 lines
3.7 KiB
Java
126 lines
3.7 KiB
Java
/*
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* Copyright (c) 2019, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/*
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* @test
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* @bug 8223780
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* @summary This exercises String#translateEscapes patterns and limits.
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* @compile TranslateEscapes.java
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* @run main TranslateEscapes
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*/
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public class TranslateEscapes {
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public static void main(String... arg) {
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test1();
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test2();
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test3();
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test4();
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}
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/*
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* Standard escapes.
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*/
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static void test1() {
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verifyEscape("b", '\b');
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verifyEscape("f", '\f');
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verifyEscape("n", '\n');
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verifyEscape("r", '\r');
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verifyEscape("s", '\s');
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verifyEscape("t", '\t');
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verifyEscape("'", '\'');
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verifyEscape("\"", '\"');
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verifyEscape("\\", '\\');
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}
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/*
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* Octal escapes.
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*/
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static void test2() {
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verifyOctalEscape("0", 0);
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verifyOctalEscape("3", 03);
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verifyOctalEscape("7", 07);
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verifyOctalEscape("07", 07);
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verifyOctalEscape("17", 017);
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verifyOctalEscape("27", 027);
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verifyOctalEscape("37", 037);
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verifyOctalEscape("377", 0377);
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verifyOctalEscape("777", 077);
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verifyOctalEscape("78", 07);
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}
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/*
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* Exceptions.
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*/
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static void test3() {
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exceptionThrown("+");
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exceptionThrown("q");
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}
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/*
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* Escape line terminator.
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*/
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static void test4() {
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verifyLineTerminator("\n");
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verifyLineTerminator("\r\n");
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verifyLineTerminator("\r");
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}
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static void verifyEscape(String string, char ch) {
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String escapes = "\\" + string;
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if (escapes.translateEscapes().charAt(0) != ch) {
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System.err.format("\"%s\" not escape \"%s\"'%n", string, escapes);
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throw new RuntimeException();
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}
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}
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static void verifyOctalEscape(String string, int octal) {
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String escapes = "\\" + string;
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if (escapes.translateEscapes().charAt(0) != octal) {
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System.err.format("\"%s\" not octal %o%n", string, octal);
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throw new RuntimeException();
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}
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}
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static void exceptionThrown(String string) {
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String escapes = "\\" + string;
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try {
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escapes.translateEscapes();
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System.err.format("escape not thrown for %s%n", string);
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throw new RuntimeException();
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} catch (IllegalArgumentException ex) {
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// okay
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}
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}
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static void verifyLineTerminator(String string) {
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String escapes = "\\" + string;
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if (!escapes.translateEscapes().isEmpty()) {
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System.err.format("escape for line terminator not handled %s%n",
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string.replace("\n", "\\n").replace("\r", "\\r"));
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throw new RuntimeException();
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}
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}
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}
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