X-Git-Url: https://oss.titaniummirror.com/gitweb?a=blobdiff_plain;f=libjava%2Fjava%2Ftext%2FCollator.java;fp=libjava%2Fjava%2Ftext%2FCollator.java;h=0000000000000000000000000000000000000000;hb=6fed43773c9b0ce596dca5686f37ac3fc0fa11c0;hp=b07045417c1a6e9f684323bec7ea80b30aca26df;hpb=27b11d56b743098deb193d510b337ba22dc52e5c;p=msp430-gcc.git diff --git a/libjava/java/text/Collator.java b/libjava/java/text/Collator.java deleted file mode 100644 index b0704541..00000000 --- a/libjava/java/text/Collator.java +++ /dev/null @@ -1,394 +0,0 @@ -/* Collator.java -- Perform locale dependent String comparisons. - Copyright (C) 1998, 1999, 2000, 2001 Free Software Foundation, Inc. - -This file is part of GNU Classpath. - -GNU Classpath is free software; you can redistribute it and/or modify -it under the terms of the GNU General Public License as published by -the Free Software Foundation; either version 2, or (at your option) -any later version. - -GNU Classpath 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 for more details. - -You should have received a copy of the GNU General Public License -along with GNU Classpath; see the file COPYING. If not, write to the -Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA -02111-1307 USA. - -Linking this library statically or dynamically with other modules is -making a combined work based on this library. Thus, the terms and -conditions of the GNU General Public License cover the whole -combination. - -As a special exception, the copyright holders of this library give you -permission to link this library with independent modules to produce an -executable, regardless of the license terms of these independent -modules, and to copy and distribute the resulting executable under -terms of your choice, provided that you also meet, for each linked -independent module, the terms and conditions of the license of that -module. An independent module is a module which is not derived from -or based on this library. If you modify this library, you may extend -this exception to your version of the library, but you are not -obligated to do so. If you do not wish to do so, delete this -exception statement from your version. */ - - -package java.text; - -import java.util.Locale; -import java.util.MissingResourceException; -import java.util.ResourceBundle; -import java.util.Comparator; - -/** - * This class is the abstract superclass of classes which perform - * locale dependent String comparisons. A caller requests - * an instance of Collator for a particular locale using - * the getInstance() static method in this class. That method - * will return a locale specific subclass of Collator which - * can be used to perform String comparisons for that locale. - * If a subclass of Collator cannot be located for a particular - * locale, a default instance for the current locale will be returned. - * - * In addition to setting the correct locale, there are two additional - * settings that can be adjusted to affect String comparisons: - * strength and decomposition. The strength value determines the level - * of signficance of character differences required for them to sort - * differently. (For example, whether or not capital letters are considered - * different from lower case letters). The decomposition value affects how - * variants of the same character are treated for sorting purposes. (For - * example, whether or not an accent is signficant or not). These settings - * are described in detail in the documentation for the methods and values - * that are related to them. - * - * @author Tom Tromey - * @author Aaron M. Renn (arenn@urbanophile.com) - * @date March 18, 1999 - */ -/* Written using "Java Class Libraries", 2nd edition, plus online - * API docs for JDK 1.2 from http://www.javasoft.com. - * Status: Mostly complete, but parts stubbed out. Look for FIXME. - */ -public abstract class Collator implements Comparator, Cloneable -{ - /** - * This constant is a strength value which indicates that only primary - * differences between characters will be considered signficant. As an - * example, two completely different English letters such as 'a' and 'b' - * are considered to have a primary difference. - */ - public static final int PRIMARY = 0; - - /** - * This constant is a strength value which indicates that only secondary - * or primary differences between characters will be considered - * significant. An example of a secondary difference between characters - * are instances of the same letter with different accented forms. - */ - public static final int SECONDARY = 1; - - /** - * This constant is a strength value which indicates that tertiary, - * secondary, and primary differences will be considered during sorting. - * An example of a tertiary difference is capitalization of a given letter. - * This is the default value for the strength setting. - */ - public static final int TERTIARY = 2; - - /** - * This constant is a strength value which indicates that any difference - * at all between character values are considered significant. - */ - public static final int IDENTICAL = 3; - - /** - * This constant indicates that accented characters won't be decomposed - * when performing comparisons. This will yield the fastest results, but - * will only work correctly in call cases for languages which do not - * use accents such as English. - */ - public static final int NO_DECOMPOSITION = 0; - - /** - * This constant indicates that only characters which are canonical variants - * in Unicode 2.0 will be decomposed prior to performing comparisons. This - * will cause accented languages to be sorted correctly. This is the - * default decomposition value. - */ - public static final int CANONICAL_DECOMPOSITION = 1; - - /** - * This constant indicates that both canonical variants and compatibility - * variants in Unicode 2.0 will be decomposed prior to performing - * comparisons. This is the slowest mode, but is required to get the - * correct sorting for certain languages with certain special formats. - */ - public static final int FULL_DECOMPOSITION = 2; - - /** - * This method initializes a new instance of Collator to have - * the default strength (TERTIARY) and decomposition - * (CANONICAL_DECOMPOSITION) settings. This constructor is protected and - * is for use by subclasses only. Non-subclass callers should use the - * static getInstance() methods of this class to instantiate - * Collation objects for the desired locale. - */ - protected Collator () - { - strength = TERTIARY; - decmp = CANONICAL_DECOMPOSITION; - } - - /** - * This method compares the two String's and returns an - * integer indicating whether or not the first argument is less than, - * equal to, or greater than the second argument. The comparison is - * performed according to the rules of the locale for this - * Collator and the strength and decomposition rules in - * effect. - * - * @param str1 The first object to compare - * @param str2 The second object to compare - * - * @return A negative integer if str1 < str2, 0 if str1 == str2, or - * a positive integer if str1 > str2. - */ - public abstract int compare (String source, String target); - - /** - * This method compares the two Object's and returns an - * integer indicating whether or not the first argument is less than, - * equal to, or greater than the second argument. These two objects - * must be String's or an exception will be thrown. - * - * @param obj1 The first object to compare - * @param obj2 The second object to compare - * - * @return A negative integer if obj1 < obj2, 0 if obj1 == obj2, or - * a positive integer if obj1 > obj2. - * - * @exception ClassCastException If the arguments are not instances - * of String. - */ - public int compare (Object o1, Object o2) - { - return compare ((String) o1, (String) o2); - } - - /** - * This method tests the specified object for equality against this - * object. This will be true if and only if the following conditions are - * met: - * - * - * @param obj The Object to test for equality against - * this object. - * - * @return true if the specified object is equal to - * this one, false otherwise. - */ - public boolean equals (Object obj) - { - if (! (obj instanceof Collator)) - return false; - Collator c = (Collator) obj; - return decmp == c.decmp && strength == c.strength; - } - - /** - * This method tests whether the specified String's are equal - * according to the collation rules for the locale of this object and - * the current strength and decomposition settings. - * - * @param str1 The first String to compare - * @param str2 The second String to compare - * - * @return true if the two strings are equal, - * false otherwise. - */ - public boolean equals (String source, String target) - { - return compare (source, target) == 0; - } - - /** - * This method returns a copy of this Collator object. - * - * @return A duplicate of this object. - */ - public Object clone () - { - try - { - return super.clone (); - } - catch (CloneNotSupportedException _) - { - return null; - } - } - - /** - * This method returns an array of Locale objects which is - * the list of locales for which Collator objects exist. - * - * @return The list of locales for which Collator's exist. - */ - public static synchronized Locale[] getAvailableLocales () - { - // FIXME - Locale[] l = new Locale[1]; - l[0] = Locale.US; - return l; - } - - /** - * This method transforms the specified String into a - * CollationKey for faster comparisons. This is useful when - * comparisons against a string might be performed multiple times, such - * as during a sort operation. - * - * @param str The String to convert. - * - * @return A CollationKey for the specified String. - */ - public abstract CollationKey getCollationKey (String source); - - /** - * This method returns the current decomposition setting for this - * object. This * will be one of NO_DECOMPOSITION, - * CANONICAL_DECOMPOSITION, or * FULL_DECOMPOSITION. See the - * documentation for those constants for an * explanation of this - * setting. - * - * @return The current decomposition setting. - */ - public synchronized int getDecomposition () - { - return decmp; - } - - /** - * This method returns an instance of Collator for the - * default locale. - * - * @return A Collator for the default locale. - */ - public static Collator getInstance () - { - return getInstance (Locale.getDefault()); - } - - /** - * This method returns an instance of Collator for the - * specified locale. If no Collator exists for the desired - * locale, a Collator for the default locale will be returned. - * - * @param locale The desired localed to load a Collator for. - * - * @return A Collator for the requested locale - */ - public static Collator getInstance (Locale loc) - { - ResourceBundle res; - String pattern; - try - { - res = ResourceBundle.getBundle("gnu.java.locale.LocaleInformation", - loc); - pattern = res.getString("collation_rules"); - } - catch (MissingResourceException x) - { - return null; - } - try - { - return new RuleBasedCollator (pattern); - } - catch (ParseException x) - { - return null; - } - } - - /** - * This method returns the current strength setting for this object. This - * will be one of PRIMARY, SECONDARY, TERTIARY, or IDENTICAL. See the - * documentation for those constants for an explanation of this setting. - * - * @return The current strength setting. - */ - public synchronized int getStrength () - { - return strength; - } - - /** - * This method returns a hash code value for this object. - * - * @return A hash value for this object. - */ - public abstract int hashCode (); - - /** - * This method sets the decomposition setting for this object to the - * specified value. This must be one of NO_DECOMPOSITION, - * CANONICAL_DECOMPOSITION, or FULL_DECOMPOSITION. Otherwise an - * exception will be thrown. See the documentation for those - * contants for an explanation of this setting. - * - * @param decmp The new decomposition setting. - * - * @exception IllegalArgumentException If the requested - * decomposition setting is not valid. - */ - public synchronized void setDecomposition (int mode) - { - if (mode != NO_DECOMPOSITION - && mode != CANONICAL_DECOMPOSITION - && mode != FULL_DECOMPOSITION) - throw new IllegalArgumentException (); - decmp = mode; - } - - /** - * This method sets the strength setting for this object to the specified - * value. This must be one of PRIMARY, SECONDARY, TERTIARY, or IDENTICAL. - * Otherwise an exception is thrown. See the documentation for these - * constants for an explanation of this setting. - * - * @param strength The new strength setting. - * - * @exception IllegalArgumentException If the requested strength - * setting value is not valid. - */ - public synchronized void setStrength (int strength) - { - if (strength != PRIMARY && strength != SECONDARY - && strength != TERTIARY && strength != IDENTICAL) - throw new IllegalArgumentException (); - this.strength = strength; - } - - // Decompose a single character and append results to the buffer. - native final void decomposeCharacter (char c, StringBuffer buf); - - /** - * This is the current collation decomposition setting. - */ - int decmp; - - /** - * This is the current collation strength setting. - */ - int strength; -}