--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/java.base/share/classes/java/text/SimpleDateFormat.java Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,2502 @@
+/*
+ * Copyright (c) 1996, 2017, 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. Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * 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.
+ */
+
+/*
+ * (C) Copyright Taligent, Inc. 1996 - All Rights Reserved
+ * (C) Copyright IBM Corp. 1996-1998 - All Rights Reserved
+ *
+ * The original version of this source code and documentation is copyrighted
+ * and owned by Taligent, Inc., a wholly-owned subsidiary of IBM. These
+ * materials are provided under terms of a License Agreement between Taligent
+ * and Sun. This technology is protected by multiple US and International
+ * patents. This notice and attribution to Taligent may not be removed.
+ * Taligent is a registered trademark of Taligent, Inc.
+ *
+ */
+
+package java.text;
+
+import java.io.IOException;
+import java.io.InvalidObjectException;
+import java.io.ObjectInputStream;
+import static java.text.DateFormatSymbols.*;
+import java.util.Calendar;
+import java.util.Date;
+import java.util.GregorianCalendar;
+import java.util.Locale;
+import java.util.Map;
+import java.util.SimpleTimeZone;
+import java.util.SortedMap;
+import java.util.TimeZone;
+import java.util.concurrent.ConcurrentHashMap;
+import java.util.concurrent.ConcurrentMap;
+import sun.util.calendar.CalendarUtils;
+import sun.util.calendar.ZoneInfoFile;
+import sun.util.locale.provider.LocaleProviderAdapter;
+
+/**
+ * <code>SimpleDateFormat</code> is a concrete class for formatting and
+ * parsing dates in a locale-sensitive manner. It allows for formatting
+ * (date → text), parsing (text → date), and normalization.
+ *
+ * <p>
+ * <code>SimpleDateFormat</code> allows you to start by choosing
+ * any user-defined patterns for date-time formatting. However, you
+ * are encouraged to create a date-time formatter with either
+ * <code>getTimeInstance</code>, <code>getDateInstance</code>, or
+ * <code>getDateTimeInstance</code> in <code>DateFormat</code>. Each
+ * of these class methods can return a date/time formatter initialized
+ * with a default format pattern. You may modify the format pattern
+ * using the <code>applyPattern</code> methods as desired.
+ * For more information on using these methods, see
+ * {@link DateFormat}.
+ *
+ * <h3>Date and Time Patterns</h3>
+ * <p>
+ * Date and time formats are specified by <em>date and time pattern</em>
+ * strings.
+ * Within date and time pattern strings, unquoted letters from
+ * <code>'A'</code> to <code>'Z'</code> and from <code>'a'</code> to
+ * <code>'z'</code> are interpreted as pattern letters representing the
+ * components of a date or time string.
+ * Text can be quoted using single quotes (<code>'</code>) to avoid
+ * interpretation.
+ * <code>"''"</code> represents a single quote.
+ * All other characters are not interpreted; they're simply copied into the
+ * output string during formatting or matched against the input string
+ * during parsing.
+ * <p>
+ * The following pattern letters are defined (all other characters from
+ * <code>'A'</code> to <code>'Z'</code> and from <code>'a'</code> to
+ * <code>'z'</code> are reserved):
+ * <blockquote>
+ * <table class="striped">
+ * <caption style="display:none">Chart shows pattern letters, date/time component, presentation, and examples.</caption>
+ * <thead>
+ * <tr>
+ * <th scope="col" style="text-align:left">Letter
+ * <th scope="col" style="text-align:left">Date or Time Component
+ * <th scope="col" style="text-align:left">Presentation
+ * <th scope="col" style="text-align:left">Examples
+ * </thead>
+ * <tbody>
+ * <tr>
+ * <th scope="row"><code>G</code>
+ * <td>Era designator
+ * <td><a href="#text">Text</a>
+ * <td><code>AD</code>
+ * <tr>
+ * <th scope="row"><code>y</code>
+ * <td>Year
+ * <td><a href="#year">Year</a>
+ * <td><code>1996</code>; <code>96</code>
+ * <tr>
+ * <th scope="row"><code>Y</code>
+ * <td>Week year
+ * <td><a href="#year">Year</a>
+ * <td><code>2009</code>; <code>09</code>
+ * <tr>
+ * <th scope="row"><code>M</code>
+ * <td>Month in year (context sensitive)
+ * <td><a href="#month">Month</a>
+ * <td><code>July</code>; <code>Jul</code>; <code>07</code>
+ * <tr>
+ * <th scope="row"><code>L</code>
+ * <td>Month in year (standalone form)
+ * <td><a href="#month">Month</a>
+ * <td><code>July</code>; <code>Jul</code>; <code>07</code>
+ * <tr>
+ * <th scope="row"><code>w</code>
+ * <td>Week in year
+ * <td><a href="#number">Number</a>
+ * <td><code>27</code>
+ * <tr>
+ * <th scope="row"><code>W</code>
+ * <td>Week in month
+ * <td><a href="#number">Number</a>
+ * <td><code>2</code>
+ * <tr>
+ * <th scope="row"><code>D</code>
+ * <td>Day in year
+ * <td><a href="#number">Number</a>
+ * <td><code>189</code>
+ * <tr>
+ * <th scope="row"><code>d</code>
+ * <td>Day in month
+ * <td><a href="#number">Number</a>
+ * <td><code>10</code>
+ * <tr>
+ * <th scope="row"><code>F</code>
+ * <td>Day of week in month
+ * <td><a href="#number">Number</a>
+ * <td><code>2</code>
+ * <tr>
+ * <th scope="row"><code>E</code>
+ * <td>Day name in week
+ * <td><a href="#text">Text</a>
+ * <td><code>Tuesday</code>; <code>Tue</code>
+ * <tr>
+ * <th scope="row"><code>u</code>
+ * <td>Day number of week (1 = Monday, ..., 7 = Sunday)
+ * <td><a href="#number">Number</a>
+ * <td><code>1</code>
+ * <tr>
+ * <th scope="row"><code>a</code>
+ * <td>Am/pm marker
+ * <td><a href="#text">Text</a>
+ * <td><code>PM</code>
+ * <tr>
+ * <th scope="row"><code>H</code>
+ * <td>Hour in day (0-23)
+ * <td><a href="#number">Number</a>
+ * <td><code>0</code>
+ * <tr>
+ * <th scope="row"><code>k</code>
+ * <td>Hour in day (1-24)
+ * <td><a href="#number">Number</a>
+ * <td><code>24</code>
+ * <tr>
+ * <th scope="row"><code>K</code>
+ * <td>Hour in am/pm (0-11)
+ * <td><a href="#number">Number</a>
+ * <td><code>0</code>
+ * <tr>
+ * <th scope="row"><code>h</code>
+ * <td>Hour in am/pm (1-12)
+ * <td><a href="#number">Number</a>
+ * <td><code>12</code>
+ * <tr>
+ * <th scope="row"><code>m</code>
+ * <td>Minute in hour
+ * <td><a href="#number">Number</a>
+ * <td><code>30</code>
+ * <tr>
+ * <th scope="row"><code>s</code>
+ * <td>Second in minute
+ * <td><a href="#number">Number</a>
+ * <td><code>55</code>
+ * <tr>
+ * <th scope="row"><code>S</code>
+ * <td>Millisecond
+ * <td><a href="#number">Number</a>
+ * <td><code>978</code>
+ * <tr>
+ * <th scope="row"><code>z</code>
+ * <td>Time zone
+ * <td><a href="#timezone">General time zone</a>
+ * <td><code>Pacific Standard Time</code>; <code>PST</code>; <code>GMT-08:00</code>
+ * <tr>
+ * <th scope="row"><code>Z</code>
+ * <td>Time zone
+ * <td><a href="#rfc822timezone">RFC 822 time zone</a>
+ * <td><code>-0800</code>
+ * <tr>
+ * <th scope="row"><code>X</code>
+ * <td>Time zone
+ * <td><a href="#iso8601timezone">ISO 8601 time zone</a>
+ * <td><code>-08</code>; <code>-0800</code>; <code>-08:00</code>
+ * </tbody>
+ * </table>
+ * </blockquote>
+ * Pattern letters are usually repeated, as their number determines the
+ * exact presentation:
+ * <ul>
+ * <li><strong><a id="text">Text:</a></strong>
+ * For formatting, if the number of pattern letters is 4 or more,
+ * the full form is used; otherwise a short or abbreviated form
+ * is used if available.
+ * For parsing, both forms are accepted, independent of the number
+ * of pattern letters.<br><br></li>
+ * <li><strong><a id="number">Number:</a></strong>
+ * For formatting, the number of pattern letters is the minimum
+ * number of digits, and shorter numbers are zero-padded to this amount.
+ * For parsing, the number of pattern letters is ignored unless
+ * it's needed to separate two adjacent fields.<br><br></li>
+ * <li><strong><a id="year">Year:</a></strong>
+ * If the formatter's {@link #getCalendar() Calendar} is the Gregorian
+ * calendar, the following rules are applied.<br>
+ * <ul>
+ * <li>For formatting, if the number of pattern letters is 2, the year
+ * is truncated to 2 digits; otherwise it is interpreted as a
+ * <a href="#number">number</a>.
+ * <li>For parsing, if the number of pattern letters is more than 2,
+ * the year is interpreted literally, regardless of the number of
+ * digits. So using the pattern "MM/dd/yyyy", "01/11/12" parses to
+ * Jan 11, 12 A.D.
+ * <li>For parsing with the abbreviated year pattern ("y" or "yy"),
+ * <code>SimpleDateFormat</code> must interpret the abbreviated year
+ * relative to some century. It does this by adjusting dates to be
+ * within 80 years before and 20 years after the time the <code>SimpleDateFormat</code>
+ * instance is created. For example, using a pattern of "MM/dd/yy" and a
+ * <code>SimpleDateFormat</code> instance created on Jan 1, 1997, the string
+ * "01/11/12" would be interpreted as Jan 11, 2012 while the string "05/04/64"
+ * would be interpreted as May 4, 1964.
+ * During parsing, only strings consisting of exactly two digits, as defined by
+ * {@link Character#isDigit(char)}, will be parsed into the default century.
+ * Any other numeric string, such as a one digit string, a three or more digit
+ * string, or a two digit string that isn't all digits (for example, "-1"), is
+ * interpreted literally. So "01/02/3" or "01/02/003" are parsed, using the
+ * same pattern, as Jan 2, 3 AD. Likewise, "01/02/-3" is parsed as Jan 2, 4 BC.
+ * </ul>
+ * Otherwise, calendar system specific forms are applied.
+ * For both formatting and parsing, if the number of pattern
+ * letters is 4 or more, a calendar specific {@linkplain
+ * Calendar#LONG long form} is used. Otherwise, a calendar
+ * specific {@linkplain Calendar#SHORT short or abbreviated form}
+ * is used.<br>
+ * <br>
+ * If week year {@code 'Y'} is specified and the {@linkplain
+ * #getCalendar() calendar} doesn't support any <a
+ * href="../util/GregorianCalendar.html#week_year"> week
+ * years</a>, the calendar year ({@code 'y'}) is used instead. The
+ * support of week years can be tested with a call to {@link
+ * DateFormat#getCalendar() getCalendar()}.{@link
+ * java.util.Calendar#isWeekDateSupported()
+ * isWeekDateSupported()}.<br><br></li>
+ * <li><strong><a id="month">Month:</a></strong>
+ * If the number of pattern letters is 3 or more, the month is
+ * interpreted as <a href="#text">text</a>; otherwise,
+ * it is interpreted as a <a href="#number">number</a>.<br>
+ * <ul>
+ * <li>Letter <em>M</em> produces context-sensitive month names, such as the
+ * embedded form of names. Letter <em>M</em> is context-sensitive in the
+ * sense that when it is used in the standalone pattern, for example,
+ * "MMMM", it gives the standalone form of a month name and when it is
+ * used in the pattern containing other field(s), for example, "d MMMM",
+ * it gives the format form of a month name. For example, January in the
+ * Catalan language is "de gener" in the format form while it is "gener"
+ * in the standalone form. In this case, "MMMM" will produce "gener" and
+ * the month part of the "d MMMM" will produce "de gener". If a
+ * {@code DateFormatSymbols} has been set explicitly with constructor
+ * {@link #SimpleDateFormat(String,DateFormatSymbols)} or method {@link
+ * #setDateFormatSymbols(DateFormatSymbols)}, the month names given by
+ * the {@code DateFormatSymbols} are used.</li>
+ * <li>Letter <em>L</em> produces the standalone form of month names.</li>
+ * </ul>
+ * <br></li>
+ * <li><strong><a id="timezone">General time zone:</a></strong>
+ * Time zones are interpreted as <a href="#text">text</a> if they have
+ * names. For time zones representing a GMT offset value, the
+ * following syntax is used:
+ * <pre>
+ * <a id="GMTOffsetTimeZone"><i>GMTOffsetTimeZone:</i></a>
+ * <code>GMT</code> <i>Sign</i> <i>Hours</i> <code>:</code> <i>Minutes</i>
+ * <i>Sign:</i> one of
+ * <code>+ -</code>
+ * <i>Hours:</i>
+ * <i>Digit</i>
+ * <i>Digit</i> <i>Digit</i>
+ * <i>Minutes:</i>
+ * <i>Digit</i> <i>Digit</i>
+ * <i>Digit:</i> one of
+ * <code>0 1 2 3 4 5 6 7 8 9</code></pre>
+ * <i>Hours</i> must be between 0 and 23, and <i>Minutes</i> must be between
+ * 00 and 59. The format is locale independent and digits must be taken
+ * from the Basic Latin block of the Unicode standard.
+ * <p>For parsing, <a href="#rfc822timezone">RFC 822 time zones</a> are also
+ * accepted.<br><br></li>
+ * <li><strong><a id="rfc822timezone">RFC 822 time zone:</a></strong>
+ * For formatting, the RFC 822 4-digit time zone format is used:
+ *
+ * <pre>
+ * <i>RFC822TimeZone:</i>
+ * <i>Sign</i> <i>TwoDigitHours</i> <i>Minutes</i>
+ * <i>TwoDigitHours:</i>
+ * <i>Digit Digit</i></pre>
+ * <i>TwoDigitHours</i> must be between 00 and 23. Other definitions
+ * are as for <a href="#timezone">general time zones</a>.
+ *
+ * <p>For parsing, <a href="#timezone">general time zones</a> are also
+ * accepted.
+ * <li><strong><a id="iso8601timezone">ISO 8601 Time zone:</a></strong>
+ * The number of pattern letters designates the format for both formatting
+ * and parsing as follows:
+ * <pre>
+ * <i>ISO8601TimeZone:</i>
+ * <i>OneLetterISO8601TimeZone</i>
+ * <i>TwoLetterISO8601TimeZone</i>
+ * <i>ThreeLetterISO8601TimeZone</i>
+ * <i>OneLetterISO8601TimeZone:</i>
+ * <i>Sign</i> <i>TwoDigitHours</i>
+ * {@code Z}
+ * <i>TwoLetterISO8601TimeZone:</i>
+ * <i>Sign</i> <i>TwoDigitHours</i> <i>Minutes</i>
+ * {@code Z}
+ * <i>ThreeLetterISO8601TimeZone:</i>
+ * <i>Sign</i> <i>TwoDigitHours</i> {@code :} <i>Minutes</i>
+ * {@code Z}</pre>
+ * Other definitions are as for <a href="#timezone">general time zones</a> or
+ * <a href="#rfc822timezone">RFC 822 time zones</a>.
+ *
+ * <p>For formatting, if the offset value from GMT is 0, {@code "Z"} is
+ * produced. If the number of pattern letters is 1, any fraction of an hour
+ * is ignored. For example, if the pattern is {@code "X"} and the time zone is
+ * {@code "GMT+05:30"}, {@code "+05"} is produced.
+ *
+ * <p>For parsing, {@code "Z"} is parsed as the UTC time zone designator.
+ * <a href="#timezone">General time zones</a> are <em>not</em> accepted.
+ *
+ * <p>If the number of pattern letters is 4 or more, {@link
+ * IllegalArgumentException} is thrown when constructing a {@code
+ * SimpleDateFormat} or {@linkplain #applyPattern(String) applying a
+ * pattern}.
+ * </ul>
+ * <code>SimpleDateFormat</code> also supports <em>localized date and time
+ * pattern</em> strings. In these strings, the pattern letters described above
+ * may be replaced with other, locale dependent, pattern letters.
+ * <code>SimpleDateFormat</code> does not deal with the localization of text
+ * other than the pattern letters; that's up to the client of the class.
+ *
+ * <h4>Examples</h4>
+ *
+ * The following examples show how date and time patterns are interpreted in
+ * the U.S. locale. The given date and time are 2001-07-04 12:08:56 local time
+ * in the U.S. Pacific Time time zone.
+ * <blockquote>
+ * <table class="striped">
+ * <caption style="display:none">Examples of date and time patterns interpreted in the U.S. locale</caption>
+ * <thead>
+ * <tr>
+ * <th scope="col" style="text-align:left">Date and Time Pattern
+ * <th scope="col" style="text-align:left">Result
+ * </thead>
+ * <tbody>
+ * <tr>
+ * <th scope="row"><code>"yyyy.MM.dd G 'at' HH:mm:ss z"</code>
+ * <td><code>2001.07.04 AD at 12:08:56 PDT</code>
+ * <tr>
+ * <th scope="row"><code>"EEE, MMM d, ''yy"</code>
+ * <td><code>Wed, Jul 4, '01</code>
+ * <tr>
+ * <th scope="row"><code>"h:mm a"</code>
+ * <td><code>12:08 PM</code>
+ * <tr>
+ * <th scope="row"><code>"hh 'o''clock' a, zzzz"</code>
+ * <td><code>12 o'clock PM, Pacific Daylight Time</code>
+ * <tr>
+ * <th scope="row"><code>"K:mm a, z"</code>
+ * <td><code>0:08 PM, PDT</code>
+ * <tr>
+ * <th scope="row"><code>"yyyyy.MMMMM.dd GGG hh:mm aaa"</code>
+ * <td><code>02001.July.04 AD 12:08 PM</code>
+ * <tr>
+ * <th scope="row"><code>"EEE, d MMM yyyy HH:mm:ss Z"</code>
+ * <td><code>Wed, 4 Jul 2001 12:08:56 -0700</code>
+ * <tr>
+ * <th scope="row"><code>"yyMMddHHmmssZ"</code>
+ * <td><code>010704120856-0700</code>
+ * <tr>
+ * <th scope="row"><code>"yyyy-MM-dd'T'HH:mm:ss.SSSZ"</code>
+ * <td><code>2001-07-04T12:08:56.235-0700</code>
+ * <tr>
+ * <th scope="row"><code>"yyyy-MM-dd'T'HH:mm:ss.SSSXXX"</code>
+ * <td><code>2001-07-04T12:08:56.235-07:00</code>
+ * <tr>
+ * <th scope="row"><code>"YYYY-'W'ww-u"</code>
+ * <td><code>2001-W27-3</code>
+ * </tbody>
+ * </table>
+ * </blockquote>
+ *
+ * <h4><a id="synchronization">Synchronization</a></h4>
+ *
+ * <p>
+ * Date formats are not synchronized.
+ * It is recommended to create separate format instances for each thread.
+ * If multiple threads access a format concurrently, it must be synchronized
+ * externally.
+ *
+ * @see <a href="http://docs.oracle.com/javase/tutorial/i18n/format/simpleDateFormat.html">Java Tutorial</a>
+ * @see java.util.Calendar
+ * @see java.util.TimeZone
+ * @see DateFormat
+ * @see DateFormatSymbols
+ * @author Mark Davis, Chen-Lieh Huang, Alan Liu
+ * @since 1.1
+ */
+public class SimpleDateFormat extends DateFormat {
+
+ // the official serial version ID which says cryptically
+ // which version we're compatible with
+ static final long serialVersionUID = 4774881970558875024L;
+
+ // the internal serial version which says which version was written
+ // - 0 (default) for version up to JDK 1.1.3
+ // - 1 for version from JDK 1.1.4, which includes a new field
+ static final int currentSerialVersion = 1;
+
+ /**
+ * The version of the serialized data on the stream. Possible values:
+ * <ul>
+ * <li><b>0</b> or not present on stream: JDK 1.1.3. This version
+ * has no <code>defaultCenturyStart</code> on stream.
+ * <li><b>1</b> JDK 1.1.4 or later. This version adds
+ * <code>defaultCenturyStart</code>.
+ * </ul>
+ * When streaming out this class, the most recent format
+ * and the highest allowable <code>serialVersionOnStream</code>
+ * is written.
+ * @serial
+ * @since 1.1.4
+ */
+ private int serialVersionOnStream = currentSerialVersion;
+
+ /**
+ * The pattern string of this formatter. This is always a non-localized
+ * pattern. May not be null. See class documentation for details.
+ * @serial
+ */
+ private String pattern;
+
+ /**
+ * Saved numberFormat and pattern.
+ * @see SimpleDateFormat#checkNegativeNumberExpression
+ */
+ private transient NumberFormat originalNumberFormat;
+ private transient String originalNumberPattern;
+
+ /**
+ * The minus sign to be used with format and parse.
+ */
+ private transient char minusSign = '-';
+
+ /**
+ * True when a negative sign follows a number.
+ * (True as default in Arabic.)
+ */
+ private transient boolean hasFollowingMinusSign = false;
+
+ /**
+ * True if standalone form needs to be used.
+ */
+ private transient boolean forceStandaloneForm = false;
+
+ /**
+ * The compiled pattern.
+ */
+ private transient char[] compiledPattern;
+
+ /**
+ * Tags for the compiled pattern.
+ */
+ private static final int TAG_QUOTE_ASCII_CHAR = 100;
+ private static final int TAG_QUOTE_CHARS = 101;
+
+ /**
+ * Locale dependent digit zero.
+ * @see #zeroPaddingNumber
+ * @see java.text.DecimalFormatSymbols#getZeroDigit
+ */
+ private transient char zeroDigit;
+
+ /**
+ * The symbols used by this formatter for week names, month names,
+ * etc. May not be null.
+ * @serial
+ * @see java.text.DateFormatSymbols
+ */
+ private DateFormatSymbols formatData;
+
+ /**
+ * We map dates with two-digit years into the century starting at
+ * <code>defaultCenturyStart</code>, which may be any date. May
+ * not be null.
+ * @serial
+ * @since 1.1.4
+ */
+ private Date defaultCenturyStart;
+
+ private transient int defaultCenturyStartYear;
+
+ private static final int MILLIS_PER_MINUTE = 60 * 1000;
+
+ // For time zones that have no names, use strings GMT+minutes and
+ // GMT-minutes. For instance, in France the time zone is GMT+60.
+ private static final String GMT = "GMT";
+
+ /**
+ * Cache NumberFormat instances with Locale key.
+ */
+ private static final ConcurrentMap<Locale, NumberFormat> cachedNumberFormatData
+ = new ConcurrentHashMap<>(3);
+
+ /**
+ * The Locale used to instantiate this
+ * <code>SimpleDateFormat</code>. The value may be null if this object
+ * has been created by an older <code>SimpleDateFormat</code> and
+ * deserialized.
+ *
+ * @serial
+ * @since 1.6
+ */
+ private Locale locale;
+
+ /**
+ * Indicates whether this <code>SimpleDateFormat</code> should use
+ * the DateFormatSymbols. If true, the format and parse methods
+ * use the DateFormatSymbols values. If false, the format and
+ * parse methods call Calendar.getDisplayName or
+ * Calendar.getDisplayNames.
+ */
+ transient boolean useDateFormatSymbols;
+
+ /**
+ * Constructs a <code>SimpleDateFormat</code> using the default pattern and
+ * date format symbols for the default
+ * {@link java.util.Locale.Category#FORMAT FORMAT} locale.
+ * <b>Note:</b> This constructor may not support all locales.
+ * For full coverage, use the factory methods in the {@link DateFormat}
+ * class.
+ */
+ public SimpleDateFormat() {
+ this("", Locale.getDefault(Locale.Category.FORMAT));
+ applyPatternImpl(LocaleProviderAdapter.getResourceBundleBased().getLocaleResources(locale)
+ .getDateTimePattern(SHORT, SHORT, calendar));
+ }
+
+ /**
+ * Constructs a <code>SimpleDateFormat</code> using the given pattern and
+ * the default date format symbols for the default
+ * {@link java.util.Locale.Category#FORMAT FORMAT} locale.
+ * <b>Note:</b> This constructor may not support all locales.
+ * For full coverage, use the factory methods in the {@link DateFormat}
+ * class.
+ * <p>This is equivalent to calling
+ * {@link #SimpleDateFormat(String, Locale)
+ * SimpleDateFormat(pattern, Locale.getDefault(Locale.Category.FORMAT))}.
+ *
+ * @see java.util.Locale#getDefault(java.util.Locale.Category)
+ * @see java.util.Locale.Category#FORMAT
+ * @param pattern the pattern describing the date and time format
+ * @exception NullPointerException if the given pattern is null
+ * @exception IllegalArgumentException if the given pattern is invalid
+ */
+ public SimpleDateFormat(String pattern)
+ {
+ this(pattern, Locale.getDefault(Locale.Category.FORMAT));
+ }
+
+ /**
+ * Constructs a <code>SimpleDateFormat</code> using the given pattern and
+ * the default date format symbols for the given locale.
+ * <b>Note:</b> This constructor may not support all locales.
+ * For full coverage, use the factory methods in the {@link DateFormat}
+ * class.
+ *
+ * @param pattern the pattern describing the date and time format
+ * @param locale the locale whose date format symbols should be used
+ * @exception NullPointerException if the given pattern or locale is null
+ * @exception IllegalArgumentException if the given pattern is invalid
+ */
+ public SimpleDateFormat(String pattern, Locale locale)
+ {
+ if (pattern == null || locale == null) {
+ throw new NullPointerException();
+ }
+
+ initializeCalendar(locale);
+ this.pattern = pattern;
+ this.formatData = DateFormatSymbols.getInstanceRef(locale);
+ this.locale = locale;
+ initialize(locale);
+ }
+
+ /**
+ * Constructs a <code>SimpleDateFormat</code> using the given pattern and
+ * date format symbols.
+ *
+ * @param pattern the pattern describing the date and time format
+ * @param formatSymbols the date format symbols to be used for formatting
+ * @exception NullPointerException if the given pattern or formatSymbols is null
+ * @exception IllegalArgumentException if the given pattern is invalid
+ */
+ public SimpleDateFormat(String pattern, DateFormatSymbols formatSymbols)
+ {
+ if (pattern == null || formatSymbols == null) {
+ throw new NullPointerException();
+ }
+
+ this.pattern = pattern;
+ this.formatData = (DateFormatSymbols) formatSymbols.clone();
+ this.locale = Locale.getDefault(Locale.Category.FORMAT);
+ initializeCalendar(this.locale);
+ initialize(this.locale);
+ useDateFormatSymbols = true;
+ }
+
+ /* Initialize compiledPattern and numberFormat fields */
+ private void initialize(Locale loc) {
+ // Verify and compile the given pattern.
+ compiledPattern = compile(pattern);
+
+ /* try the cache first */
+ numberFormat = cachedNumberFormatData.get(loc);
+ if (numberFormat == null) { /* cache miss */
+ numberFormat = NumberFormat.getIntegerInstance(loc);
+ numberFormat.setGroupingUsed(false);
+
+ /* update cache */
+ cachedNumberFormatData.putIfAbsent(loc, numberFormat);
+ }
+ numberFormat = (NumberFormat) numberFormat.clone();
+
+ initializeDefaultCentury();
+ }
+
+ private void initializeCalendar(Locale loc) {
+ if (calendar == null) {
+ assert loc != null;
+ // The format object must be constructed using the symbols for this zone.
+ // However, the calendar should use the current default TimeZone.
+ // If this is not contained in the locale zone strings, then the zone
+ // will be formatted using generic GMT+/-H:MM nomenclature.
+ calendar = Calendar.getInstance(TimeZone.getDefault(), loc);
+ }
+ }
+
+ /**
+ * Returns the compiled form of the given pattern. The syntax of
+ * the compiled pattern is:
+ * <blockquote>
+ * CompiledPattern:
+ * EntryList
+ * EntryList:
+ * Entry
+ * EntryList Entry
+ * Entry:
+ * TagField
+ * TagField data
+ * TagField:
+ * Tag Length
+ * TaggedData
+ * Tag:
+ * pattern_char_index
+ * TAG_QUOTE_CHARS
+ * Length:
+ * short_length
+ * long_length
+ * TaggedData:
+ * TAG_QUOTE_ASCII_CHAR ascii_char
+ *
+ * </blockquote>
+ *
+ * where `short_length' is an 8-bit unsigned integer between 0 and
+ * 254. `long_length' is a sequence of an 8-bit integer 255 and a
+ * 32-bit signed integer value which is split into upper and lower
+ * 16-bit fields in two char's. `pattern_char_index' is an 8-bit
+ * integer between 0 and 18. `ascii_char' is an 7-bit ASCII
+ * character value. `data' depends on its Tag value.
+ * <p>
+ * If Length is short_length, Tag and short_length are packed in a
+ * single char, as illustrated below.
+ * <blockquote>
+ * char[0] = (Tag << 8) | short_length;
+ * </blockquote>
+ *
+ * If Length is long_length, Tag and 255 are packed in the first
+ * char and a 32-bit integer, as illustrated below.
+ * <blockquote>
+ * char[0] = (Tag << 8) | 255;
+ * char[1] = (char) (long_length >>> 16);
+ * char[2] = (char) (long_length & 0xffff);
+ * </blockquote>
+ * <p>
+ * If Tag is a pattern_char_index, its Length is the number of
+ * pattern characters. For example, if the given pattern is
+ * "yyyy", Tag is 1 and Length is 4, followed by no data.
+ * <p>
+ * If Tag is TAG_QUOTE_CHARS, its Length is the number of char's
+ * following the TagField. For example, if the given pattern is
+ * "'o''clock'", Length is 7 followed by a char sequence of
+ * <code>o&nbs;'&nbs;c&nbs;l&nbs;o&nbs;c&nbs;k</code>.
+ * <p>
+ * TAG_QUOTE_ASCII_CHAR is a special tag and has an ASCII
+ * character in place of Length. For example, if the given pattern
+ * is "'o'", the TaggedData entry is
+ * <code>((TAG_QUOTE_ASCII_CHAR&nbs;<<&nbs;8)&nbs;|&nbs;'o')</code>.
+ *
+ * @exception NullPointerException if the given pattern is null
+ * @exception IllegalArgumentException if the given pattern is invalid
+ */
+ private char[] compile(String pattern) {
+ int length = pattern.length();
+ boolean inQuote = false;
+ StringBuilder compiledCode = new StringBuilder(length * 2);
+ StringBuilder tmpBuffer = null;
+ int count = 0, tagcount = 0;
+ int lastTag = -1, prevTag = -1;
+
+ for (int i = 0; i < length; i++) {
+ char c = pattern.charAt(i);
+
+ if (c == '\'') {
+ // '' is treated as a single quote regardless of being
+ // in a quoted section.
+ if ((i + 1) < length) {
+ c = pattern.charAt(i + 1);
+ if (c == '\'') {
+ i++;
+ if (count != 0) {
+ encode(lastTag, count, compiledCode);
+ tagcount++;
+ prevTag = lastTag;
+ lastTag = -1;
+ count = 0;
+ }
+ if (inQuote) {
+ tmpBuffer.append(c);
+ } else {
+ compiledCode.append((char)(TAG_QUOTE_ASCII_CHAR << 8 | c));
+ }
+ continue;
+ }
+ }
+ if (!inQuote) {
+ if (count != 0) {
+ encode(lastTag, count, compiledCode);
+ tagcount++;
+ prevTag = lastTag;
+ lastTag = -1;
+ count = 0;
+ }
+ if (tmpBuffer == null) {
+ tmpBuffer = new StringBuilder(length);
+ } else {
+ tmpBuffer.setLength(0);
+ }
+ inQuote = true;
+ } else {
+ int len = tmpBuffer.length();
+ if (len == 1) {
+ char ch = tmpBuffer.charAt(0);
+ if (ch < 128) {
+ compiledCode.append((char)(TAG_QUOTE_ASCII_CHAR << 8 | ch));
+ } else {
+ compiledCode.append((char)(TAG_QUOTE_CHARS << 8 | 1));
+ compiledCode.append(ch);
+ }
+ } else {
+ encode(TAG_QUOTE_CHARS, len, compiledCode);
+ compiledCode.append(tmpBuffer);
+ }
+ inQuote = false;
+ }
+ continue;
+ }
+ if (inQuote) {
+ tmpBuffer.append(c);
+ continue;
+ }
+ if (!(c >= 'a' && c <= 'z' || c >= 'A' && c <= 'Z')) {
+ if (count != 0) {
+ encode(lastTag, count, compiledCode);
+ tagcount++;
+ prevTag = lastTag;
+ lastTag = -1;
+ count = 0;
+ }
+ if (c < 128) {
+ // In most cases, c would be a delimiter, such as ':'.
+ compiledCode.append((char)(TAG_QUOTE_ASCII_CHAR << 8 | c));
+ } else {
+ // Take any contiguous non-ASCII alphabet characters and
+ // put them in a single TAG_QUOTE_CHARS.
+ int j;
+ for (j = i + 1; j < length; j++) {
+ char d = pattern.charAt(j);
+ if (d == '\'' || (d >= 'a' && d <= 'z' || d >= 'A' && d <= 'Z')) {
+ break;
+ }
+ }
+ compiledCode.append((char)(TAG_QUOTE_CHARS << 8 | (j - i)));
+ for (; i < j; i++) {
+ compiledCode.append(pattern.charAt(i));
+ }
+ i--;
+ }
+ continue;
+ }
+
+ int tag;
+ if ((tag = DateFormatSymbols.patternChars.indexOf(c)) == -1) {
+ throw new IllegalArgumentException("Illegal pattern character " +
+ "'" + c + "'");
+ }
+ if (lastTag == -1 || lastTag == tag) {
+ lastTag = tag;
+ count++;
+ continue;
+ }
+ encode(lastTag, count, compiledCode);
+ tagcount++;
+ prevTag = lastTag;
+ lastTag = tag;
+ count = 1;
+ }
+
+ if (inQuote) {
+ throw new IllegalArgumentException("Unterminated quote");
+ }
+
+ if (count != 0) {
+ encode(lastTag, count, compiledCode);
+ tagcount++;
+ prevTag = lastTag;
+ }
+
+ forceStandaloneForm = (tagcount == 1 && prevTag == PATTERN_MONTH);
+
+ // Copy the compiled pattern to a char array
+ int len = compiledCode.length();
+ char[] r = new char[len];
+ compiledCode.getChars(0, len, r, 0);
+ return r;
+ }
+
+ /**
+ * Encodes the given tag and length and puts encoded char(s) into buffer.
+ */
+ private static void encode(int tag, int length, StringBuilder buffer) {
+ if (tag == PATTERN_ISO_ZONE && length >= 4) {
+ throw new IllegalArgumentException("invalid ISO 8601 format: length=" + length);
+ }
+ if (length < 255) {
+ buffer.append((char)(tag << 8 | length));
+ } else {
+ buffer.append((char)((tag << 8) | 0xff));
+ buffer.append((char)(length >>> 16));
+ buffer.append((char)(length & 0xffff));
+ }
+ }
+
+ /* Initialize the fields we use to disambiguate ambiguous years. Separate
+ * so we can call it from readObject().
+ */
+ private void initializeDefaultCentury() {
+ calendar.setTimeInMillis(System.currentTimeMillis());
+ calendar.add( Calendar.YEAR, -80 );
+ parseAmbiguousDatesAsAfter(calendar.getTime());
+ }
+
+ /* Define one-century window into which to disambiguate dates using
+ * two-digit years.
+ */
+ private void parseAmbiguousDatesAsAfter(Date startDate) {
+ defaultCenturyStart = startDate;
+ calendar.setTime(startDate);
+ defaultCenturyStartYear = calendar.get(Calendar.YEAR);
+ }
+
+ /**
+ * Sets the 100-year period 2-digit years will be interpreted as being in
+ * to begin on the date the user specifies.
+ *
+ * @param startDate During parsing, two digit years will be placed in the range
+ * <code>startDate</code> to <code>startDate + 100 years</code>.
+ * @see #get2DigitYearStart
+ * @throws NullPointerException if {@code startDate} is {@code null}.
+ * @since 1.2
+ */
+ public void set2DigitYearStart(Date startDate) {
+ parseAmbiguousDatesAsAfter(new Date(startDate.getTime()));
+ }
+
+ /**
+ * Returns the beginning date of the 100-year period 2-digit years are interpreted
+ * as being within.
+ *
+ * @return the start of the 100-year period into which two digit years are
+ * parsed
+ * @see #set2DigitYearStart
+ * @since 1.2
+ */
+ public Date get2DigitYearStart() {
+ return (Date) defaultCenturyStart.clone();
+ }
+
+ /**
+ * Formats the given <code>Date</code> into a date/time string and appends
+ * the result to the given <code>StringBuffer</code>.
+ *
+ * @param date the date-time value to be formatted into a date-time string.
+ * @param toAppendTo where the new date-time text is to be appended.
+ * @param pos the formatting position. On input: an alignment field,
+ * if desired. On output: the offsets of the alignment field.
+ * @return the formatted date-time string.
+ * @exception NullPointerException if any of the parameters is {@code null}.
+ */
+ @Override
+ public StringBuffer format(Date date, StringBuffer toAppendTo,
+ FieldPosition pos)
+ {
+ pos.beginIndex = pos.endIndex = 0;
+ return format(date, toAppendTo, pos.getFieldDelegate());
+ }
+
+ // Called from Format after creating a FieldDelegate
+ private StringBuffer format(Date date, StringBuffer toAppendTo,
+ FieldDelegate delegate) {
+ // Convert input date to time field list
+ calendar.setTime(date);
+
+ boolean useDateFormatSymbols = useDateFormatSymbols();
+
+ for (int i = 0; i < compiledPattern.length; ) {
+ int tag = compiledPattern[i] >>> 8;
+ int count = compiledPattern[i++] & 0xff;
+ if (count == 255) {
+ count = compiledPattern[i++] << 16;
+ count |= compiledPattern[i++];
+ }
+
+ switch (tag) {
+ case TAG_QUOTE_ASCII_CHAR:
+ toAppendTo.append((char)count);
+ break;
+
+ case TAG_QUOTE_CHARS:
+ toAppendTo.append(compiledPattern, i, count);
+ i += count;
+ break;
+
+ default:
+ subFormat(tag, count, delegate, toAppendTo, useDateFormatSymbols);
+ break;
+ }
+ }
+ return toAppendTo;
+ }
+
+ /**
+ * Formats an Object producing an <code>AttributedCharacterIterator</code>.
+ * You can use the returned <code>AttributedCharacterIterator</code>
+ * to build the resulting String, as well as to determine information
+ * about the resulting String.
+ * <p>
+ * Each attribute key of the AttributedCharacterIterator will be of type
+ * <code>DateFormat.Field</code>, with the corresponding attribute value
+ * being the same as the attribute key.
+ *
+ * @exception NullPointerException if obj is null.
+ * @exception IllegalArgumentException if the Format cannot format the
+ * given object, or if the Format's pattern string is invalid.
+ * @param obj The object to format
+ * @return AttributedCharacterIterator describing the formatted value.
+ * @since 1.4
+ */
+ @Override
+ public AttributedCharacterIterator formatToCharacterIterator(Object obj) {
+ StringBuffer sb = new StringBuffer();
+ CharacterIteratorFieldDelegate delegate = new
+ CharacterIteratorFieldDelegate();
+
+ if (obj instanceof Date) {
+ format((Date)obj, sb, delegate);
+ }
+ else if (obj instanceof Number) {
+ format(new Date(((Number)obj).longValue()), sb, delegate);
+ }
+ else if (obj == null) {
+ throw new NullPointerException(
+ "formatToCharacterIterator must be passed non-null object");
+ }
+ else {
+ throw new IllegalArgumentException(
+ "Cannot format given Object as a Date");
+ }
+ return delegate.getIterator(sb.toString());
+ }
+
+ // Map index into pattern character string to Calendar field number
+ private static final int[] PATTERN_INDEX_TO_CALENDAR_FIELD = {
+ Calendar.ERA,
+ Calendar.YEAR,
+ Calendar.MONTH,
+ Calendar.DATE,
+ Calendar.HOUR_OF_DAY,
+ Calendar.HOUR_OF_DAY,
+ Calendar.MINUTE,
+ Calendar.SECOND,
+ Calendar.MILLISECOND,
+ Calendar.DAY_OF_WEEK,
+ Calendar.DAY_OF_YEAR,
+ Calendar.DAY_OF_WEEK_IN_MONTH,
+ Calendar.WEEK_OF_YEAR,
+ Calendar.WEEK_OF_MONTH,
+ Calendar.AM_PM,
+ Calendar.HOUR,
+ Calendar.HOUR,
+ Calendar.ZONE_OFFSET,
+ Calendar.ZONE_OFFSET,
+ CalendarBuilder.WEEK_YEAR, // Pseudo Calendar field
+ CalendarBuilder.ISO_DAY_OF_WEEK, // Pseudo Calendar field
+ Calendar.ZONE_OFFSET,
+ Calendar.MONTH
+ };
+
+ // Map index into pattern character string to DateFormat field number
+ private static final int[] PATTERN_INDEX_TO_DATE_FORMAT_FIELD = {
+ DateFormat.ERA_FIELD,
+ DateFormat.YEAR_FIELD,
+ DateFormat.MONTH_FIELD,
+ DateFormat.DATE_FIELD,
+ DateFormat.HOUR_OF_DAY1_FIELD,
+ DateFormat.HOUR_OF_DAY0_FIELD,
+ DateFormat.MINUTE_FIELD,
+ DateFormat.SECOND_FIELD,
+ DateFormat.MILLISECOND_FIELD,
+ DateFormat.DAY_OF_WEEK_FIELD,
+ DateFormat.DAY_OF_YEAR_FIELD,
+ DateFormat.DAY_OF_WEEK_IN_MONTH_FIELD,
+ DateFormat.WEEK_OF_YEAR_FIELD,
+ DateFormat.WEEK_OF_MONTH_FIELD,
+ DateFormat.AM_PM_FIELD,
+ DateFormat.HOUR1_FIELD,
+ DateFormat.HOUR0_FIELD,
+ DateFormat.TIMEZONE_FIELD,
+ DateFormat.TIMEZONE_FIELD,
+ DateFormat.YEAR_FIELD,
+ DateFormat.DAY_OF_WEEK_FIELD,
+ DateFormat.TIMEZONE_FIELD,
+ DateFormat.MONTH_FIELD
+ };
+
+ // Maps from DecimalFormatSymbols index to Field constant
+ private static final Field[] PATTERN_INDEX_TO_DATE_FORMAT_FIELD_ID = {
+ Field.ERA,
+ Field.YEAR,
+ Field.MONTH,
+ Field.DAY_OF_MONTH,
+ Field.HOUR_OF_DAY1,
+ Field.HOUR_OF_DAY0,
+ Field.MINUTE,
+ Field.SECOND,
+ Field.MILLISECOND,
+ Field.DAY_OF_WEEK,
+ Field.DAY_OF_YEAR,
+ Field.DAY_OF_WEEK_IN_MONTH,
+ Field.WEEK_OF_YEAR,
+ Field.WEEK_OF_MONTH,
+ Field.AM_PM,
+ Field.HOUR1,
+ Field.HOUR0,
+ Field.TIME_ZONE,
+ Field.TIME_ZONE,
+ Field.YEAR,
+ Field.DAY_OF_WEEK,
+ Field.TIME_ZONE,
+ Field.MONTH
+ };
+
+ /**
+ * Private member function that does the real date/time formatting.
+ */
+ private void subFormat(int patternCharIndex, int count,
+ FieldDelegate delegate, StringBuffer buffer,
+ boolean useDateFormatSymbols)
+ {
+ int maxIntCount = Integer.MAX_VALUE;
+ String current = null;
+ int beginOffset = buffer.length();
+
+ int field = PATTERN_INDEX_TO_CALENDAR_FIELD[patternCharIndex];
+ int value;
+ if (field == CalendarBuilder.WEEK_YEAR) {
+ if (calendar.isWeekDateSupported()) {
+ value = calendar.getWeekYear();
+ } else {
+ // use calendar year 'y' instead
+ patternCharIndex = PATTERN_YEAR;
+ field = PATTERN_INDEX_TO_CALENDAR_FIELD[patternCharIndex];
+ value = calendar.get(field);
+ }
+ } else if (field == CalendarBuilder.ISO_DAY_OF_WEEK) {
+ value = CalendarBuilder.toISODayOfWeek(calendar.get(Calendar.DAY_OF_WEEK));
+ } else {
+ value = calendar.get(field);
+ }
+
+ int style = (count >= 4) ? Calendar.LONG : Calendar.SHORT;
+ if (!useDateFormatSymbols && field < Calendar.ZONE_OFFSET
+ && patternCharIndex != PATTERN_MONTH_STANDALONE) {
+ current = calendar.getDisplayName(field, style, locale);
+ }
+
+ // Note: zeroPaddingNumber() assumes that maxDigits is either
+ // 2 or maxIntCount. If we make any changes to this,
+ // zeroPaddingNumber() must be fixed.
+
+ switch (patternCharIndex) {
+ case PATTERN_ERA: // 'G'
+ if (useDateFormatSymbols) {
+ String[] eras = formatData.getEras();
+ if (value < eras.length) {
+ current = eras[value];
+ }
+ }
+ if (current == null) {
+ current = "";
+ }
+ break;
+
+ case PATTERN_WEEK_YEAR: // 'Y'
+ case PATTERN_YEAR: // 'y'
+ if (calendar instanceof GregorianCalendar) {
+ if (count != 2) {
+ zeroPaddingNumber(value, count, maxIntCount, buffer);
+ } else {
+ zeroPaddingNumber(value, 2, 2, buffer);
+ } // clip 1996 to 96
+ } else {
+ if (current == null) {
+ zeroPaddingNumber(value, style == Calendar.LONG ? 1 : count,
+ maxIntCount, buffer);
+ }
+ }
+ break;
+
+ case PATTERN_MONTH: // 'M' (context seinsive)
+ if (useDateFormatSymbols) {
+ String[] months;
+ if (count >= 4) {
+ months = formatData.getMonths();
+ current = months[value];
+ } else if (count == 3) {
+ months = formatData.getShortMonths();
+ current = months[value];
+ }
+ } else {
+ if (count < 3) {
+ current = null;
+ } else if (forceStandaloneForm) {
+ current = calendar.getDisplayName(field, style | 0x8000, locale);
+ if (current == null) {
+ current = calendar.getDisplayName(field, style, locale);
+ }
+ }
+ }
+ if (current == null) {
+ zeroPaddingNumber(value+1, count, maxIntCount, buffer);
+ }
+ break;
+
+ case PATTERN_MONTH_STANDALONE: // 'L'
+ assert current == null;
+ if (locale == null) {
+ String[] months;
+ if (count >= 4) {
+ months = formatData.getMonths();
+ current = months[value];
+ } else if (count == 3) {
+ months = formatData.getShortMonths();
+ current = months[value];
+ }
+ } else {
+ if (count >= 3) {
+ current = calendar.getDisplayName(field, style | 0x8000, locale);
+ }
+ }
+ if (current == null) {
+ zeroPaddingNumber(value+1, count, maxIntCount, buffer);
+ }
+ break;
+
+ case PATTERN_HOUR_OF_DAY1: // 'k' 1-based. eg, 23:59 + 1 hour =>> 24:59
+ if (current == null) {
+ if (value == 0) {
+ zeroPaddingNumber(calendar.getMaximum(Calendar.HOUR_OF_DAY) + 1,
+ count, maxIntCount, buffer);
+ } else {
+ zeroPaddingNumber(value, count, maxIntCount, buffer);
+ }
+ }
+ break;
+
+ case PATTERN_DAY_OF_WEEK: // 'E'
+ if (useDateFormatSymbols) {
+ String[] weekdays;
+ if (count >= 4) {
+ weekdays = formatData.getWeekdays();
+ current = weekdays[value];
+ } else { // count < 4, use abbreviated form if exists
+ weekdays = formatData.getShortWeekdays();
+ current = weekdays[value];
+ }
+ }
+ break;
+
+ case PATTERN_AM_PM: // 'a'
+ if (useDateFormatSymbols) {
+ String[] ampm = formatData.getAmPmStrings();
+ current = ampm[value];
+ }
+ break;
+
+ case PATTERN_HOUR1: // 'h' 1-based. eg, 11PM + 1 hour =>> 12 AM
+ if (current == null) {
+ if (value == 0) {
+ zeroPaddingNumber(calendar.getLeastMaximum(Calendar.HOUR) + 1,
+ count, maxIntCount, buffer);
+ } else {
+ zeroPaddingNumber(value, count, maxIntCount, buffer);
+ }
+ }
+ break;
+
+ case PATTERN_ZONE_NAME: // 'z'
+ if (current == null) {
+ if (formatData.locale == null || formatData.isZoneStringsSet) {
+ int zoneIndex =
+ formatData.getZoneIndex(calendar.getTimeZone().getID());
+ if (zoneIndex == -1) {
+ value = calendar.get(Calendar.ZONE_OFFSET) +
+ calendar.get(Calendar.DST_OFFSET);
+ buffer.append(ZoneInfoFile.toCustomID(value));
+ } else {
+ int index = (calendar.get(Calendar.DST_OFFSET) == 0) ? 1: 3;
+ if (count < 4) {
+ // Use the short name
+ index++;
+ }
+ String[][] zoneStrings = formatData.getZoneStringsWrapper();
+ buffer.append(zoneStrings[zoneIndex][index]);
+ }
+ } else {
+ TimeZone tz = calendar.getTimeZone();
+ boolean daylight = (calendar.get(Calendar.DST_OFFSET) != 0);
+ int tzstyle = (count < 4 ? TimeZone.SHORT : TimeZone.LONG);
+ buffer.append(tz.getDisplayName(daylight, tzstyle, formatData.locale));
+ }
+ }
+ break;
+
+ case PATTERN_ZONE_VALUE: // 'Z' ("-/+hhmm" form)
+ value = (calendar.get(Calendar.ZONE_OFFSET) +
+ calendar.get(Calendar.DST_OFFSET)) / 60000;
+
+ int width = 4;
+ if (value >= 0) {
+ buffer.append('+');
+ } else {
+ width++;
+ }
+
+ int num = (value / 60) * 100 + (value % 60);
+ CalendarUtils.sprintf0d(buffer, num, width);
+ break;
+
+ case PATTERN_ISO_ZONE: // 'X'
+ value = calendar.get(Calendar.ZONE_OFFSET)
+ + calendar.get(Calendar.DST_OFFSET);
+
+ if (value == 0) {
+ buffer.append('Z');
+ break;
+ }
+
+ value /= 60000;
+ if (value >= 0) {
+ buffer.append('+');
+ } else {
+ buffer.append('-');
+ value = -value;
+ }
+
+ CalendarUtils.sprintf0d(buffer, value / 60, 2);
+ if (count == 1) {
+ break;
+ }
+
+ if (count == 3) {
+ buffer.append(':');
+ }
+ CalendarUtils.sprintf0d(buffer, value % 60, 2);
+ break;
+
+ default:
+ // case PATTERN_DAY_OF_MONTH: // 'd'
+ // case PATTERN_HOUR_OF_DAY0: // 'H' 0-based. eg, 23:59 + 1 hour =>> 00:59
+ // case PATTERN_MINUTE: // 'm'
+ // case PATTERN_SECOND: // 's'
+ // case PATTERN_MILLISECOND: // 'S'
+ // case PATTERN_DAY_OF_YEAR: // 'D'
+ // case PATTERN_DAY_OF_WEEK_IN_MONTH: // 'F'
+ // case PATTERN_WEEK_OF_YEAR: // 'w'
+ // case PATTERN_WEEK_OF_MONTH: // 'W'
+ // case PATTERN_HOUR0: // 'K' eg, 11PM + 1 hour =>> 0 AM
+ // case PATTERN_ISO_DAY_OF_WEEK: // 'u' pseudo field, Monday = 1, ..., Sunday = 7
+ if (current == null) {
+ zeroPaddingNumber(value, count, maxIntCount, buffer);
+ }
+ break;
+ } // switch (patternCharIndex)
+
+ if (current != null) {
+ buffer.append(current);
+ }
+
+ int fieldID = PATTERN_INDEX_TO_DATE_FORMAT_FIELD[patternCharIndex];
+ Field f = PATTERN_INDEX_TO_DATE_FORMAT_FIELD_ID[patternCharIndex];
+
+ delegate.formatted(fieldID, f, f, beginOffset, buffer.length(), buffer);
+ }
+
+ /**
+ * Formats a number with the specified minimum and maximum number of digits.
+ */
+ private void zeroPaddingNumber(int value, int minDigits, int maxDigits, StringBuffer buffer)
+ {
+ // Optimization for 1, 2 and 4 digit numbers. This should
+ // cover most cases of formatting date/time related items.
+ // Note: This optimization code assumes that maxDigits is
+ // either 2 or Integer.MAX_VALUE (maxIntCount in format()).
+ try {
+ if (zeroDigit == 0) {
+ zeroDigit = ((DecimalFormat)numberFormat).getDecimalFormatSymbols().getZeroDigit();
+ }
+ if (value >= 0) {
+ if (value < 100 && minDigits >= 1 && minDigits <= 2) {
+ if (value < 10) {
+ if (minDigits == 2) {
+ buffer.append(zeroDigit);
+ }
+ buffer.append((char)(zeroDigit + value));
+ } else {
+ buffer.append((char)(zeroDigit + value / 10));
+ buffer.append((char)(zeroDigit + value % 10));
+ }
+ return;
+ } else if (value >= 1000 && value < 10000) {
+ if (minDigits == 4) {
+ buffer.append((char)(zeroDigit + value / 1000));
+ value %= 1000;
+ buffer.append((char)(zeroDigit + value / 100));
+ value %= 100;
+ buffer.append((char)(zeroDigit + value / 10));
+ buffer.append((char)(zeroDigit + value % 10));
+ return;
+ }
+ if (minDigits == 2 && maxDigits == 2) {
+ zeroPaddingNumber(value % 100, 2, 2, buffer);
+ return;
+ }
+ }
+ }
+ } catch (Exception e) {
+ }
+
+ numberFormat.setMinimumIntegerDigits(minDigits);
+ numberFormat.setMaximumIntegerDigits(maxDigits);
+ numberFormat.format((long)value, buffer, DontCareFieldPosition.INSTANCE);
+ }
+
+
+ /**
+ * Parses text from a string to produce a <code>Date</code>.
+ * <p>
+ * The method attempts to parse text starting at the index given by
+ * <code>pos</code>.
+ * If parsing succeeds, then the index of <code>pos</code> is updated
+ * to the index after the last character used (parsing does not necessarily
+ * use all characters up to the end of the string), and the parsed
+ * date is returned. The updated <code>pos</code> can be used to
+ * indicate the starting point for the next call to this method.
+ * If an error occurs, then the index of <code>pos</code> is not
+ * changed, the error index of <code>pos</code> is set to the index of
+ * the character where the error occurred, and null is returned.
+ *
+ * <p>This parsing operation uses the {@link DateFormat#calendar
+ * calendar} to produce a {@code Date}. All of the {@code
+ * calendar}'s date-time fields are {@linkplain Calendar#clear()
+ * cleared} before parsing, and the {@code calendar}'s default
+ * values of the date-time fields are used for any missing
+ * date-time information. For example, the year value of the
+ * parsed {@code Date} is 1970 with {@link GregorianCalendar} if
+ * no year value is given from the parsing operation. The {@code
+ * TimeZone} value may be overwritten, depending on the given
+ * pattern and the time zone value in {@code text}. Any {@code
+ * TimeZone} value that has previously been set by a call to
+ * {@link #setTimeZone(java.util.TimeZone) setTimeZone} may need
+ * to be restored for further operations.
+ *
+ * @param text A <code>String</code>, part of which should be parsed.
+ * @param pos A <code>ParsePosition</code> object with index and error
+ * index information as described above.
+ * @return A <code>Date</code> parsed from the string. In case of
+ * error, returns null.
+ * @exception NullPointerException if <code>text</code> or <code>pos</code> is null.
+ */
+ @Override
+ public Date parse(String text, ParsePosition pos)
+ {
+ checkNegativeNumberExpression();
+
+ int start = pos.index;
+ int oldStart = start;
+ int textLength = text.length();
+
+ boolean[] ambiguousYear = {false};
+
+ CalendarBuilder calb = new CalendarBuilder();
+
+ for (int i = 0; i < compiledPattern.length; ) {
+ int tag = compiledPattern[i] >>> 8;
+ int count = compiledPattern[i++] & 0xff;
+ if (count == 255) {
+ count = compiledPattern[i++] << 16;
+ count |= compiledPattern[i++];
+ }
+
+ switch (tag) {
+ case TAG_QUOTE_ASCII_CHAR:
+ if (start >= textLength || text.charAt(start) != (char)count) {
+ pos.index = oldStart;
+ pos.errorIndex = start;
+ return null;
+ }
+ start++;
+ break;
+
+ case TAG_QUOTE_CHARS:
+ while (count-- > 0) {
+ if (start >= textLength || text.charAt(start) != compiledPattern[i++]) {
+ pos.index = oldStart;
+ pos.errorIndex = start;
+ return null;
+ }
+ start++;
+ }
+ break;
+
+ default:
+ // Peek the next pattern to determine if we need to
+ // obey the number of pattern letters for
+ // parsing. It's required when parsing contiguous
+ // digit text (e.g., "20010704") with a pattern which
+ // has no delimiters between fields, like "yyyyMMdd".
+ boolean obeyCount = false;
+
+ // In Arabic, a minus sign for a negative number is put after
+ // the number. Even in another locale, a minus sign can be
+ // put after a number using DateFormat.setNumberFormat().
+ // If both the minus sign and the field-delimiter are '-',
+ // subParse() needs to determine whether a '-' after a number
+ // in the given text is a delimiter or is a minus sign for the
+ // preceding number. We give subParse() a clue based on the
+ // information in compiledPattern.
+ boolean useFollowingMinusSignAsDelimiter = false;
+
+ if (i < compiledPattern.length) {
+ int nextTag = compiledPattern[i] >>> 8;
+ int nextCount = compiledPattern[i] & 0xff;
+ obeyCount = shouldObeyCount(nextTag, nextCount);
+
+ if (hasFollowingMinusSign &&
+ (nextTag == TAG_QUOTE_ASCII_CHAR ||
+ nextTag == TAG_QUOTE_CHARS)) {
+
+ if (nextTag != TAG_QUOTE_ASCII_CHAR) {
+ nextCount = compiledPattern[i+1];
+ }
+
+ if (nextCount == minusSign) {
+ useFollowingMinusSignAsDelimiter = true;
+ }
+ }
+ }
+ start = subParse(text, start, tag, count, obeyCount,
+ ambiguousYear, pos,
+ useFollowingMinusSignAsDelimiter, calb);
+ if (start < 0) {
+ pos.index = oldStart;
+ return null;
+ }
+ }
+ }
+
+ // At this point the fields of Calendar have been set. Calendar
+ // will fill in default values for missing fields when the time
+ // is computed.
+
+ pos.index = start;
+
+ Date parsedDate;
+ try {
+ parsedDate = calb.establish(calendar).getTime();
+ // If the year value is ambiguous,
+ // then the two-digit year == the default start year
+ if (ambiguousYear[0]) {
+ if (parsedDate.before(defaultCenturyStart)) {
+ parsedDate = calb.addYear(100).establish(calendar).getTime();
+ }
+ }
+ }
+ // An IllegalArgumentException will be thrown by Calendar.getTime()
+ // if any fields are out of range, e.g., MONTH == 17.
+ catch (IllegalArgumentException e) {
+ pos.errorIndex = start;
+ pos.index = oldStart;
+ return null;
+ }
+
+ return parsedDate;
+ }
+
+ /* If the next tag/pattern is a <Numeric_Field> then the parser
+ * should consider the count of digits while parsing the contigous digits
+ * for the current tag/pattern
+ */
+ private boolean shouldObeyCount(int tag, int count) {
+ switch (tag) {
+ case PATTERN_MONTH:
+ case PATTERN_MONTH_STANDALONE:
+ return count <= 2;
+ case PATTERN_YEAR:
+ case PATTERN_DAY_OF_MONTH:
+ case PATTERN_HOUR_OF_DAY1:
+ case PATTERN_HOUR_OF_DAY0:
+ case PATTERN_MINUTE:
+ case PATTERN_SECOND:
+ case PATTERN_MILLISECOND:
+ case PATTERN_DAY_OF_YEAR:
+ case PATTERN_DAY_OF_WEEK_IN_MONTH:
+ case PATTERN_WEEK_OF_YEAR:
+ case PATTERN_WEEK_OF_MONTH:
+ case PATTERN_HOUR1:
+ case PATTERN_HOUR0:
+ case PATTERN_WEEK_YEAR:
+ case PATTERN_ISO_DAY_OF_WEEK:
+ return true;
+ default:
+ return false;
+ }
+ }
+
+ /**
+ * Private code-size reduction function used by subParse.
+ * @param text the time text being parsed.
+ * @param start where to start parsing.
+ * @param field the date field being parsed.
+ * @param data the string array to parsed.
+ * @return the new start position if matching succeeded; a negative number
+ * indicating matching failure, otherwise.
+ */
+ private int matchString(String text, int start, int field, String[] data, CalendarBuilder calb)
+ {
+ int i = 0;
+ int count = data.length;
+
+ if (field == Calendar.DAY_OF_WEEK) {
+ i = 1;
+ }
+
+ // There may be multiple strings in the data[] array which begin with
+ // the same prefix (e.g., Cerven and Cervenec (June and July) in Czech).
+ // We keep track of the longest match, and return that. Note that this
+ // unfortunately requires us to test all array elements.
+ int bestMatchLength = 0, bestMatch = -1;
+ for (; i<count; ++i)
+ {
+ int length = data[i].length();
+ // Always compare if we have no match yet; otherwise only compare
+ // against potentially better matches (longer strings).
+ if (length > bestMatchLength &&
+ text.regionMatches(true, start, data[i], 0, length))
+ {
+ bestMatch = i;
+ bestMatchLength = length;
+ }
+ }
+ if (bestMatch >= 0)
+ {
+ calb.set(field, bestMatch);
+ return start + bestMatchLength;
+ }
+ return -start;
+ }
+
+ /**
+ * Performs the same thing as matchString(String, int, int,
+ * String[]). This method takes a Map<String, Integer> instead of
+ * String[].
+ */
+ private int matchString(String text, int start, int field,
+ Map<String,Integer> data, CalendarBuilder calb) {
+ if (data != null) {
+ // TODO: make this default when it's in the spec.
+ if (data instanceof SortedMap) {
+ for (String name : data.keySet()) {
+ if (text.regionMatches(true, start, name, 0, name.length())) {
+ calb.set(field, data.get(name));
+ return start + name.length();
+ }
+ }
+ return -start;
+ }
+
+ String bestMatch = null;
+
+ for (String name : data.keySet()) {
+ int length = name.length();
+ if (bestMatch == null || length > bestMatch.length()) {
+ if (text.regionMatches(true, start, name, 0, length)) {
+ bestMatch = name;
+ }
+ }
+ }
+
+ if (bestMatch != null) {
+ calb.set(field, data.get(bestMatch));
+ return start + bestMatch.length();
+ }
+ }
+ return -start;
+ }
+
+ private int matchZoneString(String text, int start, String[] zoneNames) {
+ for (int i = 1; i <= 4; ++i) {
+ // Checking long and short zones [1 & 2],
+ // and long and short daylight [3 & 4].
+ String zoneName = zoneNames[i];
+ if (text.regionMatches(true, start,
+ zoneName, 0, zoneName.length())) {
+ return i;
+ }
+ }
+ return -1;
+ }
+
+ private boolean matchDSTString(String text, int start, int zoneIndex, int standardIndex,
+ String[][] zoneStrings) {
+ int index = standardIndex + 2;
+ String zoneName = zoneStrings[zoneIndex][index];
+ if (text.regionMatches(true, start,
+ zoneName, 0, zoneName.length())) {
+ return true;
+ }
+ return false;
+ }
+
+ /**
+ * find time zone 'text' matched zoneStrings and set to internal
+ * calendar.
+ */
+ private int subParseZoneString(String text, int start, CalendarBuilder calb) {
+ boolean useSameName = false; // true if standard and daylight time use the same abbreviation.
+ TimeZone currentTimeZone = getTimeZone();
+
+ // At this point, check for named time zones by looking through
+ // the locale data from the TimeZoneNames strings.
+ // Want to be able to parse both short and long forms.
+ int zoneIndex = formatData.getZoneIndex(currentTimeZone.getID());
+ TimeZone tz = null;
+ String[][] zoneStrings = formatData.getZoneStringsWrapper();
+ String[] zoneNames = null;
+ int nameIndex = 0;
+ if (zoneIndex != -1) {
+ zoneNames = zoneStrings[zoneIndex];
+ if ((nameIndex = matchZoneString(text, start, zoneNames)) > 0) {
+ if (nameIndex <= 2) {
+ // Check if the standard name (abbr) and the daylight name are the same.
+ useSameName = zoneNames[nameIndex].equalsIgnoreCase(zoneNames[nameIndex + 2]);
+ }
+ tz = TimeZone.getTimeZone(zoneNames[0]);
+ }
+ }
+ if (tz == null) {
+ zoneIndex = formatData.getZoneIndex(TimeZone.getDefault().getID());
+ if (zoneIndex != -1) {
+ zoneNames = zoneStrings[zoneIndex];
+ if ((nameIndex = matchZoneString(text, start, zoneNames)) > 0) {
+ if (nameIndex <= 2) {
+ useSameName = zoneNames[nameIndex].equalsIgnoreCase(zoneNames[nameIndex + 2]);
+ }
+ tz = TimeZone.getTimeZone(zoneNames[0]);
+ }
+ }
+ }
+
+ if (tz == null) {
+ int len = zoneStrings.length;
+ for (int i = 0; i < len; i++) {
+ zoneNames = zoneStrings[i];
+ if ((nameIndex = matchZoneString(text, start, zoneNames)) > 0) {
+ if (nameIndex <= 2) {
+ useSameName = zoneNames[nameIndex].equalsIgnoreCase(zoneNames[nameIndex + 2]);
+ }
+ tz = TimeZone.getTimeZone(zoneNames[0]);
+ break;
+ }
+ }
+ }
+ if (tz != null) { // Matched any ?
+ if (!tz.equals(currentTimeZone)) {
+ setTimeZone(tz);
+ }
+ // If the time zone matched uses the same name
+ // (abbreviation) for both standard and daylight time,
+ // let the time zone in the Calendar decide which one.
+ //
+ // Also if tz.getDSTSaving() returns 0 for DST, use tz to
+ // determine the local time. (6645292)
+ int dstAmount = (nameIndex >= 3) ? tz.getDSTSavings() : 0;
+ if (!(useSameName || (nameIndex >= 3 && dstAmount == 0))) {
+ calb.clear(Calendar.ZONE_OFFSET).set(Calendar.DST_OFFSET, dstAmount);
+ }
+ return (start + zoneNames[nameIndex].length());
+ }
+ return -start;
+ }
+
+ /**
+ * Parses numeric forms of time zone offset, such as "hh:mm", and
+ * sets calb to the parsed value.
+ *
+ * @param text the text to be parsed
+ * @param start the character position to start parsing
+ * @param sign 1: positive; -1: negative
+ * @param count 0: 'Z' or "GMT+hh:mm" parsing; 1 - 3: the number of 'X's
+ * @param colon true - colon required between hh and mm; false - no colon required
+ * @param calb a CalendarBuilder in which the parsed value is stored
+ * @return updated parsed position, or its negative value to indicate a parsing error
+ */
+ private int subParseNumericZone(String text, int start, int sign, int count,
+ boolean colon, CalendarBuilder calb) {
+ int index = start;
+
+ parse:
+ try {
+ char c = text.charAt(index++);
+ // Parse hh
+ int hours;
+ if (!isDigit(c)) {
+ break parse;
+ }
+ hours = c - '0';
+ c = text.charAt(index++);
+ if (isDigit(c)) {
+ hours = hours * 10 + (c - '0');
+ } else {
+ // If no colon in RFC 822 or 'X' (ISO), two digits are
+ // required.
+ if (count > 0 || !colon) {
+ break parse;
+ }
+ --index;
+ }
+ if (hours > 23) {
+ break parse;
+ }
+ int minutes = 0;
+ if (count != 1) {
+ // Proceed with parsing mm
+ c = text.charAt(index++);
+ if (colon) {
+ if (c != ':') {
+ break parse;
+ }
+ c = text.charAt(index++);
+ }
+ if (!isDigit(c)) {
+ break parse;
+ }
+ minutes = c - '0';
+ c = text.charAt(index++);
+ if (!isDigit(c)) {
+ break parse;
+ }
+ minutes = minutes * 10 + (c - '0');
+ if (minutes > 59) {
+ break parse;
+ }
+ }
+ minutes += hours * 60;
+ calb.set(Calendar.ZONE_OFFSET, minutes * MILLIS_PER_MINUTE * sign)
+ .set(Calendar.DST_OFFSET, 0);
+ return index;
+ } catch (IndexOutOfBoundsException e) {
+ }
+ return 1 - index; // -(index - 1)
+ }
+
+ private boolean isDigit(char c) {
+ return c >= '0' && c <= '9';
+ }
+
+ /**
+ * Private member function that converts the parsed date strings into
+ * timeFields. Returns -start (for ParsePosition) if failed.
+ * @param text the time text to be parsed.
+ * @param start where to start parsing.
+ * @param patternCharIndex the index of the pattern character.
+ * @param count the count of a pattern character.
+ * @param obeyCount if true, then the next field directly abuts this one,
+ * and we should use the count to know when to stop parsing.
+ * @param ambiguousYear return parameter; upon return, if ambiguousYear[0]
+ * is true, then a two-digit year was parsed and may need to be readjusted.
+ * @param origPos origPos.errorIndex is used to return an error index
+ * at which a parse error occurred, if matching failure occurs.
+ * @return the new start position if matching succeeded; -1 indicating
+ * matching failure, otherwise. In case matching failure occurred,
+ * an error index is set to origPos.errorIndex.
+ */
+ private int subParse(String text, int start, int patternCharIndex, int count,
+ boolean obeyCount, boolean[] ambiguousYear,
+ ParsePosition origPos,
+ boolean useFollowingMinusSignAsDelimiter, CalendarBuilder calb) {
+ Number number;
+ int value = 0;
+ ParsePosition pos = new ParsePosition(0);
+ pos.index = start;
+ if (patternCharIndex == PATTERN_WEEK_YEAR && !calendar.isWeekDateSupported()) {
+ // use calendar year 'y' instead
+ patternCharIndex = PATTERN_YEAR;
+ }
+ int field = PATTERN_INDEX_TO_CALENDAR_FIELD[patternCharIndex];
+
+ // If there are any spaces here, skip over them. If we hit the end
+ // of the string, then fail.
+ for (;;) {
+ if (pos.index >= text.length()) {
+ origPos.errorIndex = start;
+ return -1;
+ }
+ char c = text.charAt(pos.index);
+ if (c != ' ' && c != '\t') {
+ break;
+ }
+ ++pos.index;
+ }
+ // Remember the actual start index
+ int actualStart = pos.index;
+
+ parsing:
+ {
+ // We handle a few special cases here where we need to parse
+ // a number value. We handle further, more generic cases below. We need
+ // to handle some of them here because some fields require extra processing on
+ // the parsed value.
+ if (patternCharIndex == PATTERN_HOUR_OF_DAY1 ||
+ patternCharIndex == PATTERN_HOUR1 ||
+ (patternCharIndex == PATTERN_MONTH && count <= 2) ||
+ (patternCharIndex == PATTERN_MONTH_STANDALONE && count <= 2) ||
+ patternCharIndex == PATTERN_YEAR ||
+ patternCharIndex == PATTERN_WEEK_YEAR) {
+ // It would be good to unify this with the obeyCount logic below,
+ // but that's going to be difficult.
+ if (obeyCount) {
+ if ((start+count) > text.length()) {
+ break parsing;
+ }
+ number = numberFormat.parse(text.substring(0, start+count), pos);
+ } else {
+ number = numberFormat.parse(text, pos);
+ }
+ if (number == null) {
+ if (patternCharIndex != PATTERN_YEAR || calendar instanceof GregorianCalendar) {
+ break parsing;
+ }
+ } else {
+ value = number.intValue();
+
+ if (useFollowingMinusSignAsDelimiter && (value < 0) &&
+ (((pos.index < text.length()) &&
+ (text.charAt(pos.index) != minusSign)) ||
+ ((pos.index == text.length()) &&
+ (text.charAt(pos.index-1) == minusSign)))) {
+ value = -value;
+ pos.index--;
+ }
+ }
+ }
+
+ boolean useDateFormatSymbols = useDateFormatSymbols();
+
+ int index;
+ switch (patternCharIndex) {
+ case PATTERN_ERA: // 'G'
+ if (useDateFormatSymbols) {
+ if ((index = matchString(text, start, Calendar.ERA, formatData.getEras(), calb)) > 0) {
+ return index;
+ }
+ } else {
+ Map<String, Integer> map = getDisplayNamesMap(field, locale);
+ if ((index = matchString(text, start, field, map, calb)) > 0) {
+ return index;
+ }
+ }
+ break parsing;
+
+ case PATTERN_WEEK_YEAR: // 'Y'
+ case PATTERN_YEAR: // 'y'
+ if (!(calendar instanceof GregorianCalendar)) {
+ // calendar might have text representations for year values,
+ // such as "\u5143" in JapaneseImperialCalendar.
+ int style = (count >= 4) ? Calendar.LONG : Calendar.SHORT;
+ Map<String, Integer> map = calendar.getDisplayNames(field, style, locale);
+ if (map != null) {
+ if ((index = matchString(text, start, field, map, calb)) > 0) {
+ return index;
+ }
+ }
+ calb.set(field, value);
+ return pos.index;
+ }
+
+ // If there are 3 or more YEAR pattern characters, this indicates
+ // that the year value is to be treated literally, without any
+ // two-digit year adjustments (e.g., from "01" to 2001). Otherwise
+ // we made adjustments to place the 2-digit year in the proper
+ // century, for parsed strings from "00" to "99". Any other string
+ // is treated literally: "2250", "-1", "1", "002".
+ if (count <= 2 && (pos.index - actualStart) == 2
+ && Character.isDigit(text.charAt(actualStart))
+ && Character.isDigit(text.charAt(actualStart + 1))) {
+ // Assume for example that the defaultCenturyStart is 6/18/1903.
+ // This means that two-digit years will be forced into the range
+ // 6/18/1903 to 6/17/2003. As a result, years 00, 01, and 02
+ // correspond to 2000, 2001, and 2002. Years 04, 05, etc. correspond
+ // to 1904, 1905, etc. If the year is 03, then it is 2003 if the
+ // other fields specify a date before 6/18, or 1903 if they specify a
+ // date afterwards. As a result, 03 is an ambiguous year. All other
+ // two-digit years are unambiguous.
+ int ambiguousTwoDigitYear = defaultCenturyStartYear % 100;
+ ambiguousYear[0] = value == ambiguousTwoDigitYear;
+ value += (defaultCenturyStartYear/100)*100 +
+ (value < ambiguousTwoDigitYear ? 100 : 0);
+ }
+ calb.set(field, value);
+ return pos.index;
+
+ case PATTERN_MONTH: // 'M'
+ if (count <= 2) // i.e., M or MM.
+ {
+ // Don't want to parse the month if it is a string
+ // while pattern uses numeric style: M or MM.
+ // [We computed 'value' above.]
+ calb.set(Calendar.MONTH, value - 1);
+ return pos.index;
+ }
+
+ if (useDateFormatSymbols) {
+ // count >= 3 // i.e., MMM or MMMM
+ // Want to be able to parse both short and long forms.
+ // Try count == 4 first:
+ int newStart;
+ if ((newStart = matchString(text, start, Calendar.MONTH,
+ formatData.getMonths(), calb)) > 0) {
+ return newStart;
+ }
+ // count == 4 failed, now try count == 3
+ if ((index = matchString(text, start, Calendar.MONTH,
+ formatData.getShortMonths(), calb)) > 0) {
+ return index;
+ }
+ } else {
+ Map<String, Integer> map = getDisplayNamesMap(field, locale);
+ if ((index = matchString(text, start, field, map, calb)) > 0) {
+ return index;
+ }
+ }
+ break parsing;
+
+ case PATTERN_MONTH_STANDALONE: // 'L'
+ if (count <= 2) {
+ // Don't want to parse the month if it is a string
+ // while pattern uses numeric style: L or LL
+ //[we computed 'value' above.]
+ calb.set(Calendar.MONTH, value - 1);
+ return pos.index;
+ }
+ Map<String, Integer> maps = getDisplayNamesMap(field, locale);
+ if ((index = matchString(text, start, field, maps, calb)) > 0) {
+ return index;
+ }
+ break parsing;
+
+ case PATTERN_HOUR_OF_DAY1: // 'k' 1-based. eg, 23:59 + 1 hour =>> 24:59
+ if (!isLenient()) {
+ // Validate the hour value in non-lenient
+ if (value < 1 || value > 24) {
+ break parsing;
+ }
+ }
+ // [We computed 'value' above.]
+ if (value == calendar.getMaximum(Calendar.HOUR_OF_DAY) + 1) {
+ value = 0;
+ }
+ calb.set(Calendar.HOUR_OF_DAY, value);
+ return pos.index;
+
+ case PATTERN_DAY_OF_WEEK: // 'E'
+ {
+ if (useDateFormatSymbols) {
+ // Want to be able to parse both short and long forms.
+ // Try count == 4 (DDDD) first:
+ int newStart;
+ if ((newStart=matchString(text, start, Calendar.DAY_OF_WEEK,
+ formatData.getWeekdays(), calb)) > 0) {
+ return newStart;
+ }
+ // DDDD failed, now try DDD
+ if ((index = matchString(text, start, Calendar.DAY_OF_WEEK,
+ formatData.getShortWeekdays(), calb)) > 0) {
+ return index;
+ }
+ } else {
+ int[] styles = { Calendar.LONG, Calendar.SHORT };
+ for (int style : styles) {
+ Map<String,Integer> map = calendar.getDisplayNames(field, style, locale);
+ if ((index = matchString(text, start, field, map, calb)) > 0) {
+ return index;
+ }
+ }
+ }
+ }
+ break parsing;
+
+ case PATTERN_AM_PM: // 'a'
+ if (useDateFormatSymbols) {
+ if ((index = matchString(text, start, Calendar.AM_PM,
+ formatData.getAmPmStrings(), calb)) > 0) {
+ return index;
+ }
+ } else {
+ Map<String,Integer> map = getDisplayNamesMap(field, locale);
+ if ((index = matchString(text, start, field, map, calb)) > 0) {
+ return index;
+ }
+ }
+ break parsing;
+
+ case PATTERN_HOUR1: // 'h' 1-based. eg, 11PM + 1 hour =>> 12 AM
+ if (!isLenient()) {
+ // Validate the hour value in non-lenient
+ if (value < 1 || value > 12) {
+ break parsing;
+ }
+ }
+ // [We computed 'value' above.]
+ if (value == calendar.getLeastMaximum(Calendar.HOUR) + 1) {
+ value = 0;
+ }
+ calb.set(Calendar.HOUR, value);
+ return pos.index;
+
+ case PATTERN_ZONE_NAME: // 'z'
+ case PATTERN_ZONE_VALUE: // 'Z'
+ {
+ int sign = 0;
+ try {
+ char c = text.charAt(pos.index);
+ if (c == '+') {
+ sign = 1;
+ } else if (c == '-') {
+ sign = -1;
+ }
+ if (sign == 0) {
+ // Try parsing a custom time zone "GMT+hh:mm" or "GMT".
+ if ((c == 'G' || c == 'g')
+ && (text.length() - start) >= GMT.length()
+ && text.regionMatches(true, start, GMT, 0, GMT.length())) {
+ pos.index = start + GMT.length();
+
+ if ((text.length() - pos.index) > 0) {
+ c = text.charAt(pos.index);
+ if (c == '+') {
+ sign = 1;
+ } else if (c == '-') {
+ sign = -1;
+ }
+ }
+
+ if (sign == 0) { /* "GMT" without offset */
+ calb.set(Calendar.ZONE_OFFSET, 0)
+ .set(Calendar.DST_OFFSET, 0);
+ return pos.index;
+ }
+
+ // Parse the rest as "hh:mm"
+ int i = subParseNumericZone(text, ++pos.index,
+ sign, 0, true, calb);
+ if (i > 0) {
+ return i;
+ }
+ pos.index = -i;
+ } else {
+ // Try parsing the text as a time zone
+ // name or abbreviation.
+ int i = subParseZoneString(text, pos.index, calb);
+ if (i > 0) {
+ return i;
+ }
+ pos.index = -i;
+ }
+ } else {
+ // Parse the rest as "hhmm" (RFC 822)
+ int i = subParseNumericZone(text, ++pos.index,
+ sign, 0, false, calb);
+ if (i > 0) {
+ return i;
+ }
+ pos.index = -i;
+ }
+ } catch (IndexOutOfBoundsException e) {
+ }
+ }
+ break parsing;
+
+ case PATTERN_ISO_ZONE: // 'X'
+ {
+ if ((text.length() - pos.index) <= 0) {
+ break parsing;
+ }
+
+ int sign;
+ char c = text.charAt(pos.index);
+ if (c == 'Z') {
+ calb.set(Calendar.ZONE_OFFSET, 0).set(Calendar.DST_OFFSET, 0);
+ return ++pos.index;
+ }
+
+ // parse text as "+/-hh[[:]mm]" based on count
+ if (c == '+') {
+ sign = 1;
+ } else if (c == '-') {
+ sign = -1;
+ } else {
+ ++pos.index;
+ break parsing;
+ }
+ int i = subParseNumericZone(text, ++pos.index, sign, count,
+ count == 3, calb);
+ if (i > 0) {
+ return i;
+ }
+ pos.index = -i;
+ }
+ break parsing;
+
+ default:
+ // case PATTERN_DAY_OF_MONTH: // 'd'
+ // case PATTERN_HOUR_OF_DAY0: // 'H' 0-based. eg, 23:59 + 1 hour =>> 00:59
+ // case PATTERN_MINUTE: // 'm'
+ // case PATTERN_SECOND: // 's'
+ // case PATTERN_MILLISECOND: // 'S'
+ // case PATTERN_DAY_OF_YEAR: // 'D'
+ // case PATTERN_DAY_OF_WEEK_IN_MONTH: // 'F'
+ // case PATTERN_WEEK_OF_YEAR: // 'w'
+ // case PATTERN_WEEK_OF_MONTH: // 'W'
+ // case PATTERN_HOUR0: // 'K' 0-based. eg, 11PM + 1 hour =>> 0 AM
+ // case PATTERN_ISO_DAY_OF_WEEK: // 'u' (pseudo field);
+
+ // Handle "generic" fields
+ if (obeyCount) {
+ if ((start+count) > text.length()) {
+ break parsing;
+ }
+ number = numberFormat.parse(text.substring(0, start+count), pos);
+ } else {
+ number = numberFormat.parse(text, pos);
+ }
+ if (number != null) {
+ value = number.intValue();
+
+ if (useFollowingMinusSignAsDelimiter && (value < 0) &&
+ (((pos.index < text.length()) &&
+ (text.charAt(pos.index) != minusSign)) ||
+ ((pos.index == text.length()) &&
+ (text.charAt(pos.index-1) == minusSign)))) {
+ value = -value;
+ pos.index--;
+ }
+
+ calb.set(field, value);
+ return pos.index;
+ }
+ break parsing;
+ }
+ }
+
+ // Parsing failed.
+ origPos.errorIndex = pos.index;
+ return -1;
+ }
+
+ /**
+ * Returns true if the DateFormatSymbols has been set explicitly or locale
+ * is null.
+ */
+ private boolean useDateFormatSymbols() {
+ return useDateFormatSymbols || locale == null;
+ }
+
+ /**
+ * Translates a pattern, mapping each character in the from string to the
+ * corresponding character in the to string.
+ *
+ * @exception IllegalArgumentException if the given pattern is invalid
+ */
+ private String translatePattern(String pattern, String from, String to) {
+ StringBuilder result = new StringBuilder();
+ boolean inQuote = false;
+ for (int i = 0; i < pattern.length(); ++i) {
+ char c = pattern.charAt(i);
+ if (inQuote) {
+ if (c == '\'') {
+ inQuote = false;
+ }
+ }
+ else {
+ if (c == '\'') {
+ inQuote = true;
+ } else if ((c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z')) {
+ int ci = from.indexOf(c);
+ if (ci >= 0) {
+ // patternChars is longer than localPatternChars due
+ // to serialization compatibility. The pattern letters
+ // unsupported by localPatternChars pass through.
+ if (ci < to.length()) {
+ c = to.charAt(ci);
+ }
+ } else {
+ throw new IllegalArgumentException("Illegal pattern " +
+ " character '" +
+ c + "'");
+ }
+ }
+ }
+ result.append(c);
+ }
+ if (inQuote) {
+ throw new IllegalArgumentException("Unfinished quote in pattern");
+ }
+ return result.toString();
+ }
+
+ /**
+ * Returns a pattern string describing this date format.
+ *
+ * @return a pattern string describing this date format.
+ */
+ public String toPattern() {
+ return pattern;
+ }
+
+ /**
+ * Returns a localized pattern string describing this date format.
+ *
+ * @return a localized pattern string describing this date format.
+ */
+ public String toLocalizedPattern() {
+ return translatePattern(pattern,
+ DateFormatSymbols.patternChars,
+ formatData.getLocalPatternChars());
+ }
+
+ /**
+ * Applies the given pattern string to this date format.
+ *
+ * @param pattern the new date and time pattern for this date format
+ * @exception NullPointerException if the given pattern is null
+ * @exception IllegalArgumentException if the given pattern is invalid
+ */
+ public void applyPattern(String pattern)
+ {
+ applyPatternImpl(pattern);
+ }
+
+ private void applyPatternImpl(String pattern) {
+ compiledPattern = compile(pattern);
+ this.pattern = pattern;
+ }
+
+ /**
+ * Applies the given localized pattern string to this date format.
+ *
+ * @param pattern a String to be mapped to the new date and time format
+ * pattern for this format
+ * @exception NullPointerException if the given pattern is null
+ * @exception IllegalArgumentException if the given pattern is invalid
+ */
+ public void applyLocalizedPattern(String pattern) {
+ String p = translatePattern(pattern,
+ formatData.getLocalPatternChars(),
+ DateFormatSymbols.patternChars);
+ compiledPattern = compile(p);
+ this.pattern = p;
+ }
+
+ /**
+ * Gets a copy of the date and time format symbols of this date format.
+ *
+ * @return the date and time format symbols of this date format
+ * @see #setDateFormatSymbols
+ */
+ public DateFormatSymbols getDateFormatSymbols()
+ {
+ return (DateFormatSymbols)formatData.clone();
+ }
+
+ /**
+ * Sets the date and time format symbols of this date format.
+ *
+ * @param newFormatSymbols the new date and time format symbols
+ * @exception NullPointerException if the given newFormatSymbols is null
+ * @see #getDateFormatSymbols
+ */
+ public void setDateFormatSymbols(DateFormatSymbols newFormatSymbols)
+ {
+ this.formatData = (DateFormatSymbols)newFormatSymbols.clone();
+ useDateFormatSymbols = true;
+ }
+
+ /**
+ * Creates a copy of this <code>SimpleDateFormat</code>. This also
+ * clones the format's date format symbols.
+ *
+ * @return a clone of this <code>SimpleDateFormat</code>
+ */
+ @Override
+ public Object clone() {
+ SimpleDateFormat other = (SimpleDateFormat) super.clone();
+ other.formatData = (DateFormatSymbols) formatData.clone();
+ return other;
+ }
+
+ /**
+ * Returns the hash code value for this <code>SimpleDateFormat</code> object.
+ *
+ * @return the hash code value for this <code>SimpleDateFormat</code> object.
+ */
+ @Override
+ public int hashCode()
+ {
+ return pattern.hashCode();
+ // just enough fields for a reasonable distribution
+ }
+
+ /**
+ * Compares the given object with this <code>SimpleDateFormat</code> for
+ * equality.
+ *
+ * @return true if the given object is equal to this
+ * <code>SimpleDateFormat</code>
+ */
+ @Override
+ public boolean equals(Object obj)
+ {
+ if (!super.equals(obj)) {
+ return false; // super does class check
+ }
+ SimpleDateFormat that = (SimpleDateFormat) obj;
+ return (pattern.equals(that.pattern)
+ && formatData.equals(that.formatData));
+ }
+
+ private static final int[] REST_OF_STYLES = {
+ Calendar.SHORT_STANDALONE, Calendar.LONG_FORMAT, Calendar.LONG_STANDALONE,
+ };
+ private Map<String, Integer> getDisplayNamesMap(int field, Locale locale) {
+ Map<String, Integer> map = calendar.getDisplayNames(field, Calendar.SHORT_FORMAT, locale);
+ // Get all SHORT and LONG styles (avoid NARROW styles).
+ for (int style : REST_OF_STYLES) {
+ Map<String, Integer> m = calendar.getDisplayNames(field, style, locale);
+ if (m != null) {
+ map.putAll(m);
+ }
+ }
+ return map;
+ }
+
+ /**
+ * After reading an object from the input stream, the format
+ * pattern in the object is verified.
+ *
+ * @exception InvalidObjectException if the pattern is invalid
+ */
+ private void readObject(ObjectInputStream stream)
+ throws IOException, ClassNotFoundException {
+ stream.defaultReadObject();
+
+ try {
+ compiledPattern = compile(pattern);
+ } catch (Exception e) {
+ throw new InvalidObjectException("invalid pattern");
+ }
+
+ if (serialVersionOnStream < 1) {
+ // didn't have defaultCenturyStart field
+ initializeDefaultCentury();
+ }
+ else {
+ // fill in dependent transient field
+ parseAmbiguousDatesAsAfter(defaultCenturyStart);
+ }
+ serialVersionOnStream = currentSerialVersion;
+
+ // If the deserialized object has a SimpleTimeZone, try
+ // to replace it with a ZoneInfo equivalent in order to
+ // be compatible with the SimpleTimeZone-based
+ // implementation as much as possible.
+ TimeZone tz = getTimeZone();
+ if (tz instanceof SimpleTimeZone) {
+ String id = tz.getID();
+ TimeZone zi = TimeZone.getTimeZone(id);
+ if (zi != null && zi.hasSameRules(tz) && zi.getID().equals(id)) {
+ setTimeZone(zi);
+ }
+ }
+ }
+
+ /**
+ * Analyze the negative subpattern of DecimalFormat and set/update values
+ * as necessary.
+ */
+ private void checkNegativeNumberExpression() {
+ if ((numberFormat instanceof DecimalFormat) &&
+ !numberFormat.equals(originalNumberFormat)) {
+ String numberPattern = ((DecimalFormat)numberFormat).toPattern();
+ if (!numberPattern.equals(originalNumberPattern)) {
+ hasFollowingMinusSign = false;
+
+ int separatorIndex = numberPattern.indexOf(';');
+ // If the negative subpattern is not absent, we have to analayze
+ // it in order to check if it has a following minus sign.
+ if (separatorIndex > -1) {
+ int minusIndex = numberPattern.indexOf('-', separatorIndex);
+ if ((minusIndex > numberPattern.lastIndexOf('0')) &&
+ (minusIndex > numberPattern.lastIndexOf('#'))) {
+ hasFollowingMinusSign = true;
+ minusSign = ((DecimalFormat)numberFormat).getDecimalFormatSymbols().getMinusSign();
+ }
+ }
+ originalNumberPattern = numberPattern;
+ }
+ originalNumberFormat = numberFormat;
+ }
+ }
+
+}