/*
* 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();
}
}
}
Messung V0.5 in Prozent C=94 H=92 G=92
¤ Dauer der Verarbeitung: 0.11 Sekunden
(vorverarbeitet am 2026-06-10)
¤
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