/*
* Copyright (c) 1995-1998 Sun Microsystems, Inc. All Rights Reserved.
*
* Permission to use, copy, modify, and distribute this software
* and its documentation for NON-COMMERCIAL purposes and without
* fee is hereby granted provided that this copyright notice
* appears in all copies. Please refer to the file "copyright.html"
* for further important copyright and licensing information.
*
* SUN MAKES NO REPRESENTATIONS OR WARRANTIES ABOUT THE SUITABILITY OF
* THE SOFTWARE, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
* TO THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
* PARTICULAR PURPOSE, OR NON-INFRINGEMENT. SUN SHALL NOT BE LIABLE FOR
* ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR
* DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES.
*/
import java.util.*;
import java.text.*;
import java.io.*;
public class BreakIteratorDemo {
static void extractWords(String target, BreakIterator wordIterator) {
wordIterator.setText(target);
int start = wordIterator.first();
int end = wordIterator.next();
while (end != BreakIterator.DONE) {
String word = target.substring(start,end);
if (Character.isLetterOrDigit(word.charAt(0))) {
System.out.println(word);
}
start = end;
end = wordIterator.next();
}
}
static void reverseWords(String target, BreakIterator wordIterator) {
wordIterator.setText(target);
int end = wordIterator.last();
int start = wordIterator.previous();
while (start != BreakIterator.DONE) {
String word = target.substring(start,end);
if (Character.isLetterOrDigit(word.charAt(0)))
System.out.println(word);
end = start;
start = wordIterator.previous();
}
}
static void markBoundaries(String target, BreakIterator iterator) {
StringBuffer markers = new StringBuffer();
markers.setLength(target.length() + 1);
for (int k = 0; k < markers.length(); k++) {
markers.setCharAt(k,' ');
}
iterator.setText(target);
int boundary = iterator.first();
while (boundary != BreakIterator.DONE) {
markers.setCharAt(boundary,'^');
boundary = iterator.next();
}
System.out.println(target);
System.out.println(markers);
}
static void formatLines(String target, int maxLength,
Locale currentLocale) {
BreakIterator boundary = BreakIterator.getLineInstance(currentLocale);
boundary.setText(target);
int start = boundary.first();
int end = boundary.next();
int lineLength = 0;
while (end != BreakIterator.DONE) {
String word = target.substring(start,end);
lineLength = lineLength + word.length();
if (lineLength >= maxLength) {
System.out.println();
lineLength = word.length();
}
System.out.print(word);
start = end;
end = boundary.next();
}
}
static void listPositions(String target, BreakIterator iterator) {
iterator.setText(target);
int boundary = iterator.first();
while (boundary != BreakIterator.DONE) {
System.out.println (boundary);
boundary = iterator.next();
}
}
static void characterExamples() {
BreakIterator arCharIterator =
BreakIterator.getCharacterInstance(new Locale ("ar","SA"));
// Arabic word for "house"
String house = "\u0628" + "\u064e" + "\u064a" +
"\u0652" + "\u067a" + "\u064f";
listPositions (house,arCharIterator);
}
static void wordExamples() {
Locale currentLocale = new Locale ("en","US");
BreakIterator wordIterator =
BreakIterator.getWordInstance(currentLocale);
String someText = "She stopped. " +
"She said, \"Hello there,\" and then went on.";
markBoundaries(someText, wordIterator);
System.out.println();
extractWords(someText, wordIterator);
}
static void sentenceExamples() {
Locale currentLocale = new Locale ("en","US");
BreakIterator sentenceIterator =
BreakIterator.getSentenceInstance(currentLocale);
String someText = "She stopped. " +
"She said, \"Hello there,\" and then went on.";
markBoundaries(someText, sentenceIterator);
String variousText = "He's vanished! " +
"What will we do? It's up to us.";
markBoundaries(variousText, sentenceIterator);
String decimalText = "Please add 1.5 liters to the tank.";
markBoundaries(decimalText, sentenceIterator);
String donneText = "\"No man is an island . . . " +
"every man . . . \"";
markBoundaries(donneText, sentenceIterator);
String dogText = "My friend, Mr. Jones, has a new dog. " +
"The dog's name is Spot.";
markBoundaries(dogText, sentenceIterator);
}
static void lineExamples() {
Locale currentLocale = new Locale ("en","US");
BreakIterator lineIterator =
BreakIterator.getLineInstance(currentLocale);
String someText = "She stopped. " +
"She said, \"Hello there,\" and then went on.";
markBoundaries(someText, lineIterator);
String hardHyphen = "There are twenty-four hours in a day.";
markBoundaries(hardHyphen, lineIterator);
System.out.println();
String moreText = "She said, \"Hello there,\" and then " +
"went on down the street. When she stopped " +
"to look at the fur coats in a shop window, " +
"her dog growled. \"Sorry Jake,\" she said. " +
" \"I didn't know you would take it personally.\"";
formatLines(moreText, 30, currentLocale);
System.out.println();
}
static public void main(String[] args) {
characterExamples();
System.out.println();
wordExamples();
System.out.println();
sentenceExamples();
System.out.println();
lineExamples();
}
} // class
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