a1f4e5ed0a
* java/text/SimpleDateFormat.java: Re-merged with Classpath. * gnu/gcj/text/LocaleData.java, gnu/gcj/text/LocaleData_en.java, gnu/gcj/text/LocaleData_en_US.java: Removed. * java/text/DateFormatSymbols.java (clone): Use Classpath implementation. (equals): Simplified. (DateFormatSymbols): Look in gnu.java.locale for information. (DateFormatSymbols(DateFormatSymbols)): Removed. (safeGetResource): Removed. (DateFormatSymbols): Throws MissingResourceException. (ampmsDefault, erasDefault, localPatternCharsDefault, monthsDefault, shortMonthsDefault, shortWeekdaysDefault, weekdaysDefault, zoneStringsDefault): Removed. * java/text/Collator.java (getAvailableLocales): Use modified Classpath implementation. (getInstance): Look in gnu.java.locale for information. (clone): Rewrote. * java/text/MessageFormat.java: Reindented. (clone): Rewrote. * java/text/FieldPosition.java: Merged with Classpath. * java/text/ParsePosition.java: Merged with Classpath. * java/text/Format.java: Merged with Classpath. * java/text/StringCharacterIterator.java (StringCharacterIterator(StringCharacterIterator,int,int)): New constructor from Classpath. * java/text/Annotation.java, java/text/AttributedCharacterIterator.java, java/text/AttributedString.java, java/text/AttributedStringIterator.java: New from Classpath. * java/text/CharacterIterator.java: Copied from Classpath. * java/text/ChoiceFormat.java: Reindented. (clone): Removed. * gnu/java/text/BaseBreakIterator.java, gnu/java/text/CharacterBreakIterator.java, gnu/java/text/LineBreakIterator.java, gnu/java/text/LocaleData_en.java, gnu/java/text/LocaleData_en_US.java, gnu/java/text/SentenceBreakIterator.java, gnu/java/text/WordBreakIterator.java: Renamed from gnu/gcj/text/*. * gnu/gcj/text/BaseBreakIterator.java (last): Advance past final character. * java/text/BreakIterator.java (getAvailableLocales): Use Classpath implementation. (getInstance): Look in gnu.java.locale for information. (getCharacterInstance, getLineInstance, getSentenceInstance, getWordInstance): Look in gnu.java.text for implementations. * java/text/DecimalFormatSymbols.java: Reindented (clone): Use Classpath implementation. (DecimalFormatSymbols(DecimalFormatSymbols)): Removed. (DecimalFormatSymbols(Locale)): Look in gnu.java.locale for information. * java/text/DateFormat.java: Merged with Classpath. (getAvailableLocales): Use Classpath implementation. (format(Object,StringBuffer,FieldPosition)): Minor cleanup. (computeInstance): Look in gnu.java.locale for information. * java/text/NumberFormat.java: Reindented. (computeInstance): Look in gnu.java.locale for information. (getAvailableLocales): Use implementation from Classpath. (setMaximumIntegerDigits): Likewise. (setMinimumIntegerDigits): Likewise. (setMaximumFractionDigits): Likewise. (clone): Removed. * java/text/DecimalFormat.java: Reindented. * gnu/java/locale/LocaleInformation_en.java: Copied from Classpath. * gnu/java/locale/LocaleInformation_en_US.java: Copied from Classpath. * Makefile.in: Rebuilt. * Makefile.am (ordinary_java_source_files): Added all new files. (ordinary_java_source_files): Renamed or removed gnu/gcj/text/*. * java/security/spec/AlgorithmParameterSpec.java, java/security/spec/KeySpec.java: Re-merged with Classpath. From-SVN: r45390
164 lines
5.5 KiB
Java
164 lines
5.5 KiB
Java
/* CharacterIterator.java -- Iterate over a character range
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Copyright (C) 1998, 2001 Free Software Foundation, Inc.
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This file is part of GNU Classpath.
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GNU Classpath is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU Classpath is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU Classpath; see the file COPYING. If not, write to the
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Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA.
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As a special exception, if you link this library with other files to
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produce an executable, this library does not by itself cause the
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resulting executable to be covered by the GNU General Public License.
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This exception does not however invalidate any other reasons why the
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executable file might be covered by the GNU General Public License. */
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package java.text;
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/**
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* This interface defines a mechanism for iterating over a range of
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* characters. For a given range of text, a beginning and ending index,
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* as well as a current index are defined. These values can be queried
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* by the methods in this interface. Additionally, various methods allow
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* the index to be set.
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*
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* @version 0.0
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*
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* @author Aaron M. Renn (arenn@urbanophile.com)
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*/
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public interface CharacterIterator extends Cloneable
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{
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/*************************************************************************/
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/*
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* Static Variables
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*/
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/**
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* This is a special constant value that is returned when the beginning or
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* end of the character range has been reached.
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*/
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public static final char DONE = '\uFFFF';
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/*************************************************************************/
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/*
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* Instance Methods
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*/
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/**
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* This method returns the character at the current index position
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*
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* @return The character at the current index position.
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*/
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public abstract char current ();
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/*************************************************************************/
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/**
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* This method increments the current index and then returns the character
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* at the new index value. If the index is already at <code>getEndIndex() - 1</code>,
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* it will not be incremented.
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*
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* @return The character at the position of the incremented index value, or <code>DONE</code> if the index has reached getEndIndex() - 1
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*/
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public abstract char next ();
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/*************************************************************************/
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/**
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* This method decrements the current index and then returns the character
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* at the new index value. If the index value is already at the beginning
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* index, it will not be decremented.
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*
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* @return The character at the position of the decremented index value, or <code>DONE</code> if index was already equal to the beginning index value.
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*/
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public abstract char previous ();
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/*************************************************************************/
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/**
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* This method sets the index value to the beginning of the range and returns
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* the character there.
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*
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* @return The character at the beginning of the range, or <code>DONE</code> if the range is empty.
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*/
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public abstract char first ();
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/*************************************************************************/
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/**
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* This method sets the index value to <code>getEndIndex() - 1</code> and
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* returns the character there. If the range is empty, then the index value
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* will be set equal to the beginning index.
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*
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* @return The character at the end of the range, or <code>DONE</code> if the range is empty.
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*/
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public abstract char last ();
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/*************************************************************************/
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/**
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* This method returns the current value of the index.
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*
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* @return The current index value
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*/
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public abstract int getIndex ();
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/*************************************************************************/
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/**
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* This method sets the value of the index to the specified value, then
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* returns the character at that position.
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*
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* @param index The new index value.
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*
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* @return The character at the new index value or <code>DONE</code> if the index value is equal to <code>getEndIndex</code>.
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*/
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public abstract char setIndex (int index) throws IllegalArgumentException;
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/*************************************************************************/
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/**
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* This method returns the character position of the first character in the
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* range.
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*
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* @return The index of the first character in the range.
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*/
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public abstract int getBeginIndex ();
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/*************************************************************************/
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/**
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* This method returns the character position of the end of the text range.
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* This will actually be the index of the first character following the
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* end of the range. In the event the text range is empty, this will be
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* equal to the first character in the range.
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*
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* @return The index of the end of the range.
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*/
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public abstract int getEndIndex ();
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/*************************************************************************/
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/**
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* This method creates a copy of this <code>CharacterIterator</code>.
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*
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* @return A copy of this <code>CharacterIterator</code>.
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*/
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public abstract Object clone ();
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}
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