java.text.BreakIterator.getSentenceInstance().next() treats '\n' as the end of
the sentence
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Key: HARMONY-62
URL: http://issues.apache.org/jira/browse/HARMONY-62
Project: Harmony
Type: Bug
Components: Classlib
Reporter: tatyana doubtsova
Problem details:
java.text.BreakIterator.getSentenceInstance().next() stops searching for the
sentence end, if the new-line character is found in the text and returns the
index of the last seen non white space character. Due to j2se 1.4.2 method
next() should return the boundary following the current boundary.
Code for reproducing Test.java:
import java.text.BreakIterator;
public class Test {
public static void main(String [] args)
{
BreakIterator it = BreakIterator.getSentenceInstance();
it.setText("One sentence \n on two lines.");
System.out.println(it.next());
}
}
Steps to Reproduce:
1. Build Harmony (check-out on 2006-01-30) j2se subset as described in
README.txt.
2. Compile Test.java using BEA 1.4 javac
> javac -d . Test.java
3. Run java using compatible VM (J9)
> java -showversion Test
Output:
java version 1.4.2 (subset)
(c) Copyright 1991, 2005 The Apache Software Foundation or its licensors, as
applicable.
14
Output on BEA 1.4.2 to compare with:
28
Suggested junit test case:
package org.apache.harmony.tests.java.text;
import java.text.BreakIterator;
import java.util.Locale;
import junit.framework.TestCase;
public class BreakIteratorTest extends TestCase {
public void test_next() {
// Regression test for HARMONY-30
BreakIterator bi = BreakIterator.getWordInstance(Locale.US);
bi.setText("This is the test, WordInstance");
int n = bi.first();
n = bi.next();
assertEquals("Assert 0: next() returns incorrect value ", 4,
n);
// Regression test for the current issue
bi = BreakIterator.getSentenceInstance();
bi.setText("One sentence \n on two lines.");
n = bi.next();
assertEquals("Assert 1: next() returns incorrect value ", 28,
n);
}
}
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