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/*
* 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.
* @compile TranslateEscapes.java
* @run main TranslateEscapes
*/
public class TranslateEscapes {
public static void main(String... arg) {
test1();
test2();
test3();
test4();
}
/*
* Standard escapes.
*/
static void test1() {
verifyEscape("b", '\b');
verifyEscape("f", '\f');
verifyEscape("n", '\n');
verifyEscape("r", '\r');
verifyEscape("s", '\s');
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("q");
}
/*
* Escape line terminator.
*/
static void test4() {
verifyLineTerminator("\n");
verifyLineTerminator("\r\n");
verifyLineTerminator("\r");
}
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
}
}
static void verifyLineTerminator(String string) {
String escapes = "\\" + string;
if (!escapes.translateEscapes().isEmpty()) {
System.err.format("escape for line terminator not handled %s%n",
string.replace("\n", "\\n").replace("\r", "\\r"));
throw new RuntimeException();
}
}
}
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