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/*
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* Copyright 2003-2007 Sun Microsystems, Inc. All Rights Reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation. Sun designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Sun in the LICENSE file that accompanied this code.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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* CA 95054 USA or visit www.sun.com if you need additional information or
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* have any questions.
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*/
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package java.util;
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import java.io.BufferedWriter;
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import java.io.Closeable;
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import java.io.IOException;
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import java.io.File;
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import java.io.FileOutputStream;
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import java.io.FileNotFoundException;
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import java.io.Flushable;
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import java.io.OutputStream;
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import java.io.OutputStreamWriter;
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import java.io.PrintStream;
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import java.io.UnsupportedEncodingException;
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import java.math.BigDecimal;
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import java.math.BigInteger;
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import java.math.MathContext;
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import java.nio.charset.Charset;
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import java.text.DateFormatSymbols;
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import java.text.DecimalFormat;
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import java.text.DecimalFormatSymbols;
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import java.text.NumberFormat;
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import java.util.Calendar;
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import java.util.Date;
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import java.util.Locale;
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import java.util.regex.Matcher;
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import java.util.regex.Pattern;
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import sun.misc.FpUtils;
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import sun.misc.DoubleConsts;
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import sun.misc.FormattedFloatingDecimal;
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/**
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* An interpreter for printf-style format strings. This class provides support
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* for layout justification and alignment, common formats for numeric, string,
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* and date/time data, and locale-specific output. Common Java types such as
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* <tt>byte</tt>, {@link java.math.BigDecimal BigDecimal}, and {@link Calendar}
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* are supported. Limited formatting customization for arbitrary user types is
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* provided through the {@link Formattable} interface.
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*
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* <p> Formatters are not necessarily safe for multithreaded access. Thread
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* safety is optional and is the responsibility of users of methods in this
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* class.
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*
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* <p> Formatted printing for the Java language is heavily inspired by C's
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* <tt>printf</tt>. Although the format strings are similar to C, some
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* customizations have been made to accommodate the Java language and exploit
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* some of its features. Also, Java formatting is more strict than C's; for
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* example, if a conversion is incompatible with a flag, an exception will be
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* thrown. In C inapplicable flags are silently ignored. The format strings
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* are thus intended to be recognizable to C programmers but not necessarily
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* completely compatible with those in C.
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*
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* <p> Examples of expected usage:
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*
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* <blockquote><pre>
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* StringBuilder sb = new StringBuilder();
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* // Send all output to the Appendable object sb
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* Formatter formatter = new Formatter(sb, Locale.US);
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*
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* // Explicit argument indices may be used to re-order output.
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* formatter.format("%4$2s %3$2s %2$2s %1$2s", "a", "b", "c", "d")
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* // -> " d c b a"
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*
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* // Optional locale as the first argument can be used to get
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* // locale-specific formatting of numbers. The precision and width can be
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* // given to round and align the value.
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* formatter.format(Locale.FRANCE, "e = %+10.4f", Math.E);
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* // -> "e = +2,7183"
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*
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* // The '(' numeric flag may be used to format negative numbers with
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* // parentheses rather than a minus sign. Group separators are
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* // automatically inserted.
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* formatter.format("Amount gained or lost since last statement: $ %(,.2f",
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* balanceDelta);
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* // -> "Amount gained or lost since last statement: $ (6,217.58)"
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* </pre></blockquote>
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*
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* <p> Convenience methods for common formatting requests exist as illustrated
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* by the following invocations:
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*
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* <blockquote><pre>
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* // Writes a formatted string to System.out.
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* System.out.format("Local time: %tT", Calendar.getInstance());
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* // -> "Local time: 13:34:18"
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*
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* // Writes formatted output to System.err.
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* System.err.printf("Unable to open file '%1$s': %2$s",
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* fileName, exception.getMessage());
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* // -> "Unable to open file 'food': No such file or directory"
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* </pre></blockquote>
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*
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* <p> Like C's <tt>sprintf(3)</tt>, Strings may be formatted using the static
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* method {@link String#format(String,Object...) String.format}:
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*
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* <blockquote><pre>
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* // Format a string containing a date.
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* import java.util.Calendar;
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* import java.util.GregorianCalendar;
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* import static java.util.Calendar.*;
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*
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* Calendar c = new GregorianCalendar(1995, MAY, 23);
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* String s = String.format("Duke's Birthday: %1$tm %1$te,%1$tY", c);
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* // -> s == "Duke's Birthday: May 23, 1995"
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* </pre></blockquote>
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*
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* <h3><a name="org">Organization</a></h3>
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*
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* <p> This specification is divided into two sections. The first section, <a
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* href="#summary">Summary</a>, covers the basic formatting concepts. This
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* section is intended for users who want to get started quickly and are
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* familiar with formatted printing in other programming languages. The second
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* section, <a href="#detail">Details</a>, covers the specific implementation
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* details. It is intended for users who want more precise specification of
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* formatting behavior.
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*
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* <h3><a name="summary">Summary</a></h3>
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*
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* <p> This section is intended to provide a brief overview of formatting
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* concepts. For precise behavioral details, refer to the <a
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* href="#detail">Details</a> section.
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*
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* <h4><a name="syntax">Format String Syntax</a></h4>
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*
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* <p> Every method which produces formatted output requires a <i>format
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* string</i> and an <i>argument list</i>. The format string is a {@link
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* String} which may contain fixed text and one or more embedded <i>format
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* specifiers</i>. Consider the following example:
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*
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* <blockquote><pre>
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* Calendar c = ...;
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* String s = String.format("Duke's Birthday: %1$tm %1$te,%1$tY", c);
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* </pre></blockquote>
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*
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* This format string is the first argument to the <tt>format</tt> method. It
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* contains three format specifiers "<tt>%1$tm</tt>", "<tt>%1$te</tt>", and
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* "<tt>%1$tY</tt>" which indicate how the arguments should be processed and
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* where they should be inserted in the text. The remaining portions of the
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* format string are fixed text including <tt>"Dukes Birthday: "</tt> and any
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* other spaces or punctuation.
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*
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* The argument list consists of all arguments passed to the method after the
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* format string. In the above example, the argument list is of size one and
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* consists of the {@link java.util.Calendar Calendar} object <tt>c</tt>.
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*
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* <ul>
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*
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* <li> The format specifiers for general, character, and numeric types have
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* the following syntax:
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*
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* <blockquote><pre>
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* %[argument_index$][flags][width][.precision]conversion
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* </pre></blockquote>
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*
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* <p> The optional <i>argument_index</i> is a decimal integer indicating the
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* position of the argument in the argument list. The first argument is
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* referenced by "<tt>1$</tt>", the second by "<tt>2$</tt>", etc.
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*
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* <p> The optional <i>flags</i> is a set of characters that modify the output
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* format. The set of valid flags depends on the conversion.
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*
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* <p> The optional <i>width</i> is a non-negative decimal integer indicating
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* the minimum number of characters to be written to the output.
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*
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* <p> The optional <i>precision</i> is a non-negative decimal integer usually
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* used to restrict the number of characters. The specific behavior depends on
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* the conversion.
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*
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* <p> The required <i>conversion</i> is a character indicating how the
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* argument should be formatted. The set of valid conversions for a given
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* argument depends on the argument's data type.
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*
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* <li> The format specifiers for types which are used to represents dates and
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* times have the following syntax:
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*
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* <blockquote><pre>
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* %[argument_index$][flags][width]conversion
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* </pre></blockquote>
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*
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* <p> The optional <i>argument_index</i>, <i>flags</i> and <i>width</i> are
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* defined as above.
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*
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* <p> The required <i>conversion</i> is a two character sequence. The first
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* character is <tt>'t'</tt> or <tt>'T'</tt>. The second character indicates
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* the format to be used. These characters are similar to but not completely
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* identical to those defined by GNU <tt>date</tt> and POSIX
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* <tt>strftime(3c)</tt>.
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*
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* <li> The format specifiers which do not correspond to arguments have the
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* following syntax:
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*
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* <blockquote><pre>
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* %[flags][width]conversion
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* </pre></blockquote>
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*
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* <p> The optional <i>flags</i> and <i>width</i> is defined as above.
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*
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* <p> The required <i>conversion</i> is a character indicating content to be
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* inserted in the output.
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*
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* </ul>
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*
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* <h4> Conversions </h4>
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*
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* <p> Conversions are divided into the following categories:
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*
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* <ol>
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*
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* <li> <b>General</b> - may be applied to any argument
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* type
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*
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* <li> <b>Character</b> - may be applied to basic types which represent
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* Unicode characters: <tt>char</tt>, {@link Character}, <tt>byte</tt>, {@link
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* Byte}, <tt>short</tt>, and {@link Short}. This conversion may also be
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* applied to the types <tt>int</tt> and {@link Integer} when {@link
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* Character#isValidCodePoint} returns <tt>true</tt>
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*
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* <li> <b>Numeric</b>
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*
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* <ol>
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*
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* <li> <b>Integral</b> - may be applied to Java integral types: <tt>byte</tt>,
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* {@link Byte}, <tt>short</tt>, {@link Short}, <tt>int</tt> and {@link
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* Integer}, <tt>long</tt>, {@link Long}, and {@link java.math.BigInteger
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* BigInteger}
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*
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* <li><b>Floating Point</b> - may be applied to Java floating-point types:
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* <tt>float</tt>, {@link Float}, <tt>double</tt>, {@link Double}, and {@link
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* java.math.BigDecimal BigDecimal}
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*
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* </ol>
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*
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* <li> <b>Date/Time</b> - may be applied to Java types which are capable of
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* encoding a date or time: <tt>long</tt>, {@link Long}, {@link Calendar}, and
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* {@link Date}.
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*
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* <li> <b>Percent</b> - produces a literal <tt>'%'</tt>
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* (<tt>'\u0025'</tt>)
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*
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* <li> <b>Line Separator</b> - produces the platform-specific line separator
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*
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* </ol>
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*
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* <p> The following table summarizes the supported conversions. Conversions
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* denoted by an upper-case character (i.e. <tt>'B'</tt>, <tt>'H'</tt>,
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* <tt>'S'</tt>, <tt>'C'</tt>, <tt>'X'</tt>, <tt>'E'</tt>, <tt>'G'</tt>,
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* <tt>'A'</tt>, and <tt>'T'</tt>) are the same as those for the corresponding
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* lower-case conversion characters except that the result is converted to
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* upper case according to the rules of the prevailing {@link java.util.Locale
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* Locale}. The result is equivalent to the following invocation of {@link
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* String#toUpperCase()}
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*
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* <pre>
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* out.toUpperCase() </pre>
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*
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* <table cellpadding=5 summary="genConv">
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*
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* <tr><th valign="bottom"> Conversion
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* <th valign="bottom"> Argument Category
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* <th valign="bottom"> Description
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*
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* <tr><td valign="top"> <tt>'b'</tt>, <tt>'B'</tt>
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* <td valign="top"> general
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* <td> If the argument <i>arg</i> is <tt>null</tt>, then the result is
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* "<tt>false</tt>". If <i>arg</i> is a <tt>boolean</tt> or {@link
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* Boolean}, then the result is the string returned by {@link
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* String#valueOf(boolean) String.valueOf(arg)}. Otherwise, the result is
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* "true".
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*
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* <tr><td valign="top"> <tt>'h'</tt>, <tt>'H'</tt>
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* <td valign="top"> general
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* <td> If the argument <i>arg</i> is <tt>null</tt>, then the result is
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* "<tt>null</tt>". Otherwise, the result is obtained by invoking
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* <tt>Integer.toHexString(arg.hashCode())</tt>.
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*
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* <tr><td valign="top"> <tt>'s'</tt>, <tt>'S'</tt>
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* <td valign="top"> general
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* <td> If the argument <i>arg</i> is <tt>null</tt>, then the result is
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* "<tt>null</tt>". If <i>arg</i> implements {@link Formattable}, then
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* {@link Formattable#formatTo arg.formatTo} is invoked. Otherwise, the
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* result is obtained by invoking <tt>arg.toString()</tt>.
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*
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* <tr><td valign="top"><tt>'c'</tt>, <tt>'C'</tt>
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* <td valign="top"> character
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* <td> The result is a Unicode character
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*
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* <tr><td valign="top"><tt>'d'</tt>
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* <td valign="top"> integral
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* <td> The result is formatted as a decimal integer
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*
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* <tr><td valign="top"><tt>'o'</tt>
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* <td valign="top"> integral
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|
|
317 |
* <td> The result is formatted as an octal integer
|
|
|
318 |
*
|
|
|
319 |
* <tr><td valign="top"><tt>'x'</tt>, <tt>'X'</tt>
|
|
|
320 |
* <td valign="top"> integral
|
|
|
321 |
* <td> The result is formatted as a hexadecimal integer
|
|
|
322 |
*
|
|
|
323 |
* <tr><td valign="top"><tt>'e'</tt>, <tt>'E'</tt>
|
|
|
324 |
* <td valign="top"> floating point
|
|
|
325 |
* <td> The result is formatted as a decimal number in computerized
|
|
|
326 |
* scientific notation
|
|
|
327 |
*
|
|
|
328 |
* <tr><td valign="top"><tt>'f'</tt>
|
|
|
329 |
* <td valign="top"> floating point
|
|
|
330 |
* <td> The result is formatted as a decimal number
|
|
|
331 |
*
|
|
|
332 |
* <tr><td valign="top"><tt>'g'</tt>, <tt>'G'</tt>
|
|
|
333 |
* <td valign="top"> floating point
|
|
|
334 |
* <td> The result is formatted using computerized scientific notation or
|
|
|
335 |
* decimal format, depending on the precision and the value after rounding.
|
|
|
336 |
*
|
|
|
337 |
* <tr><td valign="top"><tt>'a'</tt>, <tt>'A'</tt>
|
|
|
338 |
* <td valign="top"> floating point
|
|
|
339 |
* <td> The result is formatted as a hexadecimal floating-point number with
|
|
|
340 |
* a significand and an exponent
|
|
|
341 |
*
|
|
|
342 |
* <tr><td valign="top"><tt>'t'</tt>, <tt>'T'</tt>
|
|
|
343 |
* <td valign="top"> date/time
|
|
|
344 |
* <td> Prefix for date and time conversion characters. See <a
|
|
|
345 |
* href="#dt">Date/Time Conversions</a>.
|
|
|
346 |
*
|
|
|
347 |
* <tr><td valign="top"><tt>'%'</tt>
|
|
|
348 |
* <td valign="top"> percent
|
|
|
349 |
* <td> The result is a literal <tt>'%'</tt> (<tt>'\u0025'</tt>)
|
|
|
350 |
*
|
|
|
351 |
* <tr><td valign="top"><tt>'n'</tt>
|
|
|
352 |
* <td valign="top"> line separator
|
|
|
353 |
* <td> The result is the platform-specific line separator
|
|
|
354 |
*
|
|
|
355 |
* </table>
|
|
|
356 |
*
|
|
|
357 |
* <p> Any characters not explicitly defined as conversions are illegal and are
|
|
|
358 |
* reserved for future extensions.
|
|
|
359 |
*
|
|
|
360 |
* <h4><a name="dt">Date/Time Conversions</a></h4>
|
|
|
361 |
*
|
|
|
362 |
* <p> The following date and time conversion suffix characters are defined for
|
|
|
363 |
* the <tt>'t'</tt> and <tt>'T'</tt> conversions. The types are similar to but
|
|
|
364 |
* not completely identical to those defined by GNU <tt>date</tt> and POSIX
|
|
|
365 |
* <tt>strftime(3c)</tt>. Additional conversion types are provided to access
|
|
|
366 |
* Java-specific functionality (e.g. <tt>'L'</tt> for milliseconds within the
|
|
|
367 |
* second).
|
|
|
368 |
*
|
|
|
369 |
* <p> The following conversion characters are used for formatting times:
|
|
|
370 |
*
|
|
|
371 |
* <table cellpadding=5 summary="time">
|
|
|
372 |
*
|
|
|
373 |
* <tr><td valign="top"> <tt>'H'</tt>
|
|
|
374 |
* <td> Hour of the day for the 24-hour clock, formatted as two digits with
|
|
|
375 |
* a leading zero as necessary i.e. <tt>00 - 23</tt>.
|
|
|
376 |
*
|
|
|
377 |
* <tr><td valign="top"><tt>'I'</tt>
|
|
|
378 |
* <td> Hour for the 12-hour clock, formatted as two digits with a leading
|
|
|
379 |
* zero as necessary, i.e. <tt>01 - 12</tt>.
|
|
|
380 |
*
|
|
|
381 |
* <tr><td valign="top"><tt>'k'</tt>
|
|
|
382 |
* <td> Hour of the day for the 24-hour clock, i.e. <tt>0 - 23</tt>.
|
|
|
383 |
*
|
|
|
384 |
* <tr><td valign="top"><tt>'l'</tt>
|
|
|
385 |
* <td> Hour for the 12-hour clock, i.e. <tt>1 - 12</tt>.
|
|
|
386 |
*
|
|
|
387 |
* <tr><td valign="top"><tt>'M'</tt>
|
|
|
388 |
* <td> Minute within the hour formatted as two digits with a leading zero
|
|
|
389 |
* as necessary, i.e. <tt>00 - 59</tt>.
|
|
|
390 |
*
|
|
|
391 |
* <tr><td valign="top"><tt>'S'</tt>
|
|
|
392 |
* <td> Seconds within the minute, formatted as two digits with a leading
|
|
|
393 |
* zero as necessary, i.e. <tt>00 - 60</tt> ("<tt>60</tt>" is a special
|
|
|
394 |
* value required to support leap seconds).
|
|
|
395 |
*
|
|
|
396 |
* <tr><td valign="top"><tt>'L'</tt>
|
|
|
397 |
* <td> Millisecond within the second formatted as three digits with
|
|
|
398 |
* leading zeros as necessary, i.e. <tt>000 - 999</tt>.
|
|
|
399 |
*
|
|
|
400 |
* <tr><td valign="top"><tt>'N'</tt>
|
|
|
401 |
* <td> Nanosecond within the second, formatted as nine digits with leading
|
|
|
402 |
* zeros as necessary, i.e. <tt>000000000 - 999999999</tt>.
|
|
|
403 |
*
|
|
|
404 |
* <tr><td valign="top"><tt>'p'</tt>
|
|
|
405 |
* <td> Locale-specific {@linkplain
|
|
|
406 |
* java.text.DateFormatSymbols#getAmPmStrings morning or afternoon} marker
|
|
|
407 |
* in lower case, e.g."<tt>am</tt>" or "<tt>pm</tt>". Use of the conversion
|
|
|
408 |
* prefix <tt>'T'</tt> forces this output to upper case.
|
|
|
409 |
*
|
|
|
410 |
* <tr><td valign="top"><tt>'z'</tt>
|
|
|
411 |
* <td> <a href="http://www.ietf.org/rfc/rfc0822.txt">RFC 822</a>
|
|
|
412 |
* style numeric time zone offset from GMT, e.g. <tt>-0800</tt>. This
|
|
|
413 |
* value will be adjusted as necessary for Daylight Saving Time. For
|
|
|
414 |
* <tt>long</tt>, {@link Long}, and {@link Date} the time zone used is
|
|
|
415 |
* the {@plainlink TimeZone#getDefault() default time zone} for this
|
|
|
416 |
* instance of the Java virtual machine.
|
|
|
417 |
*
|
|
|
418 |
* <tr><td valign="top"><tt>'Z'</tt>
|
|
|
419 |
* <td> A string representing the abbreviation for the time zone. This
|
|
|
420 |
* value will be adjusted as necessary for Daylight Saving Time. For
|
|
|
421 |
* <tt>long</tt>, {@link Long}, and {@link Date} the time zone used is
|
|
|
422 |
* the {@plainlink TimeZone#getDefault() default time zone} for this
|
|
|
423 |
* instance of the Java virtual machine. The Formatter's locale will
|
|
|
424 |
* supersede the locale of the argument (if any).
|
|
|
425 |
*
|
|
|
426 |
* <tr><td valign="top"><tt>'s'</tt>
|
|
|
427 |
* <td> Seconds since the beginning of the epoch starting at 1 January 1970
|
|
|
428 |
* <tt>00:00:00</tt> UTC, i.e. <tt>Long.MIN_VALUE/1000</tt> to
|
|
|
429 |
* <tt>Long.MAX_VALUE/1000</tt>.
|
|
|
430 |
*
|
|
|
431 |
* <tr><td valign="top"><tt>'Q'</tt>
|
|
|
432 |
* <td> Milliseconds since the beginning of the epoch starting at 1 January
|
|
|
433 |
* 1970 <tt>00:00:00</tt> UTC, i.e. <tt>Long.MIN_VALUE</tt> to
|
|
|
434 |
* <tt>Long.MAX_VALUE</tt>.
|
|
|
435 |
*
|
|
|
436 |
* </table>
|
|
|
437 |
*
|
|
|
438 |
* <p> The following conversion characters are used for formatting dates:
|
|
|
439 |
*
|
|
|
440 |
* <table cellpadding=5 summary="date">
|
|
|
441 |
*
|
|
|
442 |
* <tr><td valign="top"><tt>'B'</tt>
|
|
|
443 |
* <td> Locale-specific {@linkplain java.text.DateFormatSymbols#getMonths
|
|
|
444 |
* full month name}, e.g. <tt>"January"</tt>, <tt>"February"</tt>.
|
|
|
445 |
*
|
|
|
446 |
* <tr><td valign="top"><tt>'b'</tt>
|
|
|
447 |
* <td> Locale-specific {@linkplain
|
|
|
448 |
* java.text.DateFormatSymbols#getShortMonths abbreviated month name},
|
|
|
449 |
* e.g. <tt>"Jan"</tt>, <tt>"Feb"</tt>.
|
|
|
450 |
*
|
|
|
451 |
* <tr><td valign="top"><tt>'h'</tt>
|
|
|
452 |
* <td> Same as <tt>'b'</tt>.
|
|
|
453 |
*
|
|
|
454 |
* <tr><td valign="top"><tt>'A'</tt>
|
|
|
455 |
* <td> Locale-specific full name of the {@linkplain
|
|
|
456 |
* java.text.DateFormatSymbols#getWeekdays day of the week},
|
|
|
457 |
* e.g. <tt>"Sunday"</tt>, <tt>"Monday"</tt>
|
|
|
458 |
*
|
|
|
459 |
* <tr><td valign="top"><tt>'a'</tt>
|
|
|
460 |
* <td> Locale-specific short name of the {@linkplain
|
|
|
461 |
* java.text.DateFormatSymbols#getShortWeekdays day of the week},
|
|
|
462 |
* e.g. <tt>"Sun"</tt>, <tt>"Mon"</tt>
|
|
|
463 |
*
|
|
|
464 |
* <tr><td valign="top"><tt>'C'</tt>
|
|
|
465 |
* <td> Four-digit year divided by <tt>100</tt>, formatted as two digits
|
|
|
466 |
* with leading zero as necessary, i.e. <tt>00 - 99</tt>
|
|
|
467 |
*
|
|
|
468 |
* <tr><td valign="top"><tt>'Y'</tt>
|
|
|
469 |
* <td> Year, formatted as at least four digits with leading zeros as
|
|
|
470 |
* necessary, e.g. <tt>0092</tt> equals <tt>92</tt> CE for the Gregorian
|
|
|
471 |
* calendar.
|
|
|
472 |
*
|
|
|
473 |
* <tr><td valign="top"><tt>'y'</tt>
|
|
|
474 |
* <td> Last two digits of the year, formatted with leading zeros as
|
|
|
475 |
* necessary, i.e. <tt>00 - 99</tt>.
|
|
|
476 |
*
|
|
|
477 |
* <tr><td valign="top"><tt>'j'</tt>
|
|
|
478 |
* <td> Day of year, formatted as three digits with leading zeros as
|
|
|
479 |
* necessary, e.g. <tt>001 - 366</tt> for the Gregorian calendar.
|
|
|
480 |
*
|
|
|
481 |
* <tr><td valign="top"><tt>'m'</tt>
|
|
|
482 |
* <td> Month, formatted as two digits with leading zeros as necessary,
|
|
|
483 |
* i.e. <tt>01 - 13</tt>.
|
|
|
484 |
*
|
|
|
485 |
* <tr><td valign="top"><tt>'d'</tt>
|
|
|
486 |
* <td> Day of month, formatted as two digits with leading zeros as
|
|
|
487 |
* necessary, i.e. <tt>01 - 31</tt>
|
|
|
488 |
*
|
|
|
489 |
* <tr><td valign="top"><tt>'e'</tt>
|
|
|
490 |
* <td> Day of month, formatted as two digits, i.e. <tt>1 - 31</tt>.
|
|
|
491 |
*
|
|
|
492 |
* </table>
|
|
|
493 |
*
|
|
|
494 |
* <p> The following conversion characters are used for formatting common
|
|
|
495 |
* date/time compositions.
|
|
|
496 |
*
|
|
|
497 |
* <table cellpadding=5 summary="composites">
|
|
|
498 |
*
|
|
|
499 |
* <tr><td valign="top"><tt>'R'</tt>
|
|
|
500 |
* <td> Time formatted for the 24-hour clock as <tt>"%tH:%tM"</tt>
|
|
|
501 |
*
|
|
|
502 |
* <tr><td valign="top"><tt>'T'</tt>
|
|
|
503 |
* <td> Time formatted for the 24-hour clock as <tt>"%tH:%tM:%tS"</tt>.
|
|
|
504 |
*
|
|
|
505 |
* <tr><td valign="top"><tt>'r'</tt>
|
|
|
506 |
* <td> Time formatted for the 12-hour clock as <tt>"%tI:%tM:%tS %Tp"</tt>.
|
|
|
507 |
* The location of the morning or afternoon marker (<tt>'%Tp'</tt>) may be
|
|
|
508 |
* locale-dependent.
|
|
|
509 |
*
|
|
|
510 |
* <tr><td valign="top"><tt>'D'</tt>
|
|
|
511 |
* <td> Date formatted as <tt>"%tm/%td/%ty"</tt>.
|
|
|
512 |
*
|
|
|
513 |
* <tr><td valign="top"><tt>'F'</tt>
|
|
|
514 |
* <td> <a href="http://www.w3.org/TR/NOTE-datetime">ISO 8601</a>
|
|
|
515 |
* complete date formatted as <tt>"%tY-%tm-%td"</tt>.
|
|
|
516 |
*
|
|
|
517 |
* <tr><td valign="top"><tt>'c'</tt>
|
|
|
518 |
* <td> Date and time formatted as <tt>"%ta %tb %td %tT %tZ %tY"</tt>,
|
|
|
519 |
* e.g. <tt>"Sun Jul 20 16:17:00 EDT 1969"</tt>.
|
|
|
520 |
*
|
|
|
521 |
* </table>
|
|
|
522 |
*
|
|
|
523 |
* <p> Any characters not explicitly defined as date/time conversion suffixes
|
|
|
524 |
* are illegal and are reserved for future extensions.
|
|
|
525 |
*
|
|
|
526 |
* <h4> Flags </h4>
|
|
|
527 |
*
|
|
|
528 |
* <p> The following table summarizes the supported flags. <i>y</i> means the
|
|
|
529 |
* flag is supported for the indicated argument types.
|
|
|
530 |
*
|
|
|
531 |
* <table cellpadding=5 summary="genConv">
|
|
|
532 |
*
|
|
|
533 |
* <tr><th valign="bottom"> Flag <th valign="bottom"> General
|
|
|
534 |
* <th valign="bottom"> Character <th valign="bottom"> Integral
|
|
|
535 |
* <th valign="bottom"> Floating Point
|
|
|
536 |
* <th valign="bottom"> Date/Time
|
|
|
537 |
* <th valign="bottom"> Description
|
|
|
538 |
*
|
|
|
539 |
* <tr><td> '-' <td align="center" valign="top"> y
|
|
|
540 |
* <td align="center" valign="top"> y
|
|
|
541 |
* <td align="center" valign="top"> y
|
|
|
542 |
* <td align="center" valign="top"> y
|
|
|
543 |
* <td align="center" valign="top"> y
|
|
|
544 |
* <td> The result will be left-justified.
|
|
|
545 |
*
|
|
|
546 |
* <tr><td> '#' <td align="center" valign="top"> y<sup>1</sup>
|
|
|
547 |
* <td align="center" valign="top"> -
|
|
|
548 |
* <td align="center" valign="top"> y<sup>3</sup>
|
|
|
549 |
* <td align="center" valign="top"> y
|
|
|
550 |
* <td align="center" valign="top"> -
|
|
|
551 |
* <td> The result should use a conversion-dependent alternate form
|
|
|
552 |
*
|
|
|
553 |
* <tr><td> '+' <td align="center" valign="top"> -
|
|
|
554 |
* <td align="center" valign="top"> -
|
|
|
555 |
* <td align="center" valign="top"> y<sup>4</sup>
|
|
|
556 |
* <td align="center" valign="top"> y
|
|
|
557 |
* <td align="center" valign="top"> -
|
|
|
558 |
* <td> The result will always include a sign
|
|
|
559 |
*
|
|
|
560 |
* <tr><td> ' ' <td align="center" valign="top"> -
|
|
|
561 |
* <td align="center" valign="top"> -
|
|
|
562 |
* <td align="center" valign="top"> y<sup>4</sup>
|
|
|
563 |
* <td align="center" valign="top"> y
|
|
|
564 |
* <td align="center" valign="top"> -
|
|
|
565 |
* <td> The result will include a leading space for positive values
|
|
|
566 |
*
|
|
|
567 |
* <tr><td> '0' <td align="center" valign="top"> -
|
|
|
568 |
* <td align="center" valign="top"> -
|
|
|
569 |
* <td align="center" valign="top"> y
|
|
|
570 |
* <td align="center" valign="top"> y
|
|
|
571 |
* <td align="center" valign="top"> -
|
|
|
572 |
* <td> The result will be zero-padded
|
|
|
573 |
*
|
|
|
574 |
* <tr><td> ',' <td align="center" valign="top"> -
|
|
|
575 |
* <td align="center" valign="top"> -
|
|
|
576 |
* <td align="center" valign="top"> y<sup>2</sup>
|
|
|
577 |
* <td align="center" valign="top"> y<sup>5</sup>
|
|
|
578 |
* <td align="center" valign="top"> -
|
|
|
579 |
* <td> The result will include locale-specific {@linkplain
|
|
|
580 |
* java.text.DecimalFormatSymbols#getGroupingSeparator grouping separators}
|
|
|
581 |
*
|
|
|
582 |
* <tr><td> '(' <td align="center" valign="top"> -
|
|
|
583 |
* <td align="center" valign="top"> -
|
|
|
584 |
* <td align="center" valign="top"> y<sup>4</sup>
|
|
|
585 |
* <td align="center" valign="top"> y<sup>5</sup>
|
|
|
586 |
* <td align="center"> -
|
|
|
587 |
* <td> The result will enclose negative numbers in parentheses
|
|
|
588 |
*
|
|
|
589 |
* </table>
|
|
|
590 |
*
|
|
|
591 |
* <p> <sup>1</sup> Depends on the definition of {@link Formattable}.
|
|
|
592 |
*
|
|
|
593 |
* <p> <sup>2</sup> For <tt>'d'</tt> conversion only.
|
|
|
594 |
*
|
|
|
595 |
* <p> <sup>3</sup> For <tt>'o'</tt>, <tt>'x'</tt>, and <tt>'X'</tt>
|
|
|
596 |
* conversions only.
|
|
|
597 |
*
|
|
|
598 |
* <p> <sup>4</sup> For <tt>'d'</tt>, <tt>'o'</tt>, <tt>'x'</tt>, and
|
|
|
599 |
* <tt>'X'</tt> conversions applied to {@link java.math.BigInteger BigInteger}
|
|
|
600 |
* or <tt>'d'</tt> applied to <tt>byte</tt>, {@link Byte}, <tt>short</tt>, {@link
|
|
|
601 |
* Short}, <tt>int</tt> and {@link Integer}, <tt>long</tt>, and {@link Long}.
|
|
|
602 |
*
|
|
|
603 |
* <p> <sup>5</sup> For <tt>'e'</tt>, <tt>'E'</tt>, <tt>'f'</tt>,
|
|
|
604 |
* <tt>'g'</tt>, and <tt>'G'</tt> conversions only.
|
|
|
605 |
*
|
|
|
606 |
* <p> Any characters not explicitly defined as flags are illegal and are
|
|
|
607 |
* reserved for future extensions.
|
|
|
608 |
*
|
|
|
609 |
* <h4> Width </h4>
|
|
|
610 |
*
|
|
|
611 |
* <p> The width is the minimum number of characters to be written to the
|
|
|
612 |
* output. For the line separator conversion, width is not applicable; if it
|
|
|
613 |
* is provided, an exception will be thrown.
|
|
|
614 |
*
|
|
|
615 |
* <h4> Precision </h4>
|
|
|
616 |
*
|
|
|
617 |
* <p> For general argument types, the precision is the maximum number of
|
|
|
618 |
* characters to be written to the output.
|
|
|
619 |
*
|
|
|
620 |
* <p> For the floating-point conversions <tt>'e'</tt>, <tt>'E'</tt>, and
|
|
|
621 |
* <tt>'f'</tt> the precision is the number of digits after the decimal
|
|
|
622 |
* separator. If the conversion is <tt>'g'</tt> or <tt>'G'</tt>, then the
|
|
|
623 |
* precision is the total number of digits in the resulting magnitude after
|
|
|
624 |
* rounding. If the conversion is <tt>'a'</tt> or <tt>'A'</tt>, then the
|
|
|
625 |
* precision must not be specified.
|
|
|
626 |
*
|
|
|
627 |
* <p> For character, integral, and date/time argument types and the percent
|
|
|
628 |
* and line separator conversions, the precision is not applicable; if a
|
|
|
629 |
* precision is provided, an exception will be thrown.
|
|
|
630 |
*
|
|
|
631 |
* <h4> Argument Index </h4>
|
|
|
632 |
*
|
|
|
633 |
* <p> The argument index is a decimal integer indicating the position of the
|
|
|
634 |
* argument in the argument list. The first argument is referenced by
|
|
|
635 |
* "<tt>1$</tt>", the second by "<tt>2$</tt>", etc.
|
|
|
636 |
*
|
|
|
637 |
* <p> Another way to reference arguments by position is to use the
|
|
|
638 |
* <tt>'<'</tt> (<tt>'\u003c'</tt>) flag, which causes the argument for
|
|
|
639 |
* the previous format specifier to be re-used. For example, the following two
|
|
|
640 |
* statements would produce identical strings:
|
|
|
641 |
*
|
|
|
642 |
* <blockquote><pre>
|
|
|
643 |
* Calendar c = ...;
|
|
|
644 |
* String s1 = String.format("Duke's Birthday: %1$tm %1$te,%1$tY", c);
|
|
|
645 |
*
|
|
|
646 |
* String s2 = String.format("Duke's Birthday: %1$tm %<te,%<tY", c);
|
|
|
647 |
* </pre></blockquote>
|
|
|
648 |
*
|
|
|
649 |
* <hr>
|
|
|
650 |
* <h3><a name="detail">Details</a></h3>
|
|
|
651 |
*
|
|
|
652 |
* <p> This section is intended to provide behavioral details for formatting,
|
|
|
653 |
* including conditions and exceptions, supported data types, localization, and
|
|
|
654 |
* interactions between flags, conversions, and data types. For an overview of
|
|
|
655 |
* formatting concepts, refer to the <a href="#summary">Summary</a>
|
|
|
656 |
*
|
|
|
657 |
* <p> Any characters not explicitly defined as conversions, date/time
|
|
|
658 |
* conversion suffixes, or flags are illegal and are reserved for
|
|
|
659 |
* future extensions. Use of such a character in a format string will
|
|
|
660 |
* cause an {@link UnknownFormatConversionException} or {@link
|
|
|
661 |
* UnknownFormatFlagsException} to be thrown.
|
|
|
662 |
*
|
|
|
663 |
* <p> If the format specifier contains a width or precision with an invalid
|
|
|
664 |
* value or which is otherwise unsupported, then a {@link
|
|
|
665 |
* IllegalFormatWidthException} or {@link IllegalFormatPrecisionException}
|
|
|
666 |
* respectively will be thrown.
|
|
|
667 |
*
|
|
|
668 |
* <p> If a format specifier contains a conversion character that is not
|
|
|
669 |
* applicable to the corresponding argument, then an {@link
|
|
|
670 |
* IllegalFormatConversionException} will be thrown.
|
|
|
671 |
*
|
|
|
672 |
* <p> All specified exceptions may be thrown by any of the <tt>format</tt>
|
|
|
673 |
* methods of <tt>Formatter</tt> as well as by any <tt>format</tt> convenience
|
|
|
674 |
* methods such as {@link String#format(String,Object...) String.format} and
|
|
|
675 |
* {@link java.io.PrintStream#printf(String,Object...) PrintStream.printf}.
|
|
|
676 |
*
|
|
|
677 |
* <p> Conversions denoted by an upper-case character (i.e. <tt>'B'</tt>,
|
|
|
678 |
* <tt>'H'</tt>, <tt>'S'</tt>, <tt>'C'</tt>, <tt>'X'</tt>, <tt>'E'</tt>,
|
|
|
679 |
* <tt>'G'</tt>, <tt>'A'</tt>, and <tt>'T'</tt>) are the same as those for the
|
|
|
680 |
* corresponding lower-case conversion characters except that the result is
|
|
|
681 |
* converted to upper case according to the rules of the prevailing {@link
|
|
|
682 |
* java.util.Locale Locale}. The result is equivalent to the following
|
|
|
683 |
* invocation of {@link String#toUpperCase()}
|
|
|
684 |
*
|
|
|
685 |
* <pre>
|
|
|
686 |
* out.toUpperCase() </pre>
|
|
|
687 |
*
|
|
|
688 |
* <h4><a name="dgen">General</a></h4>
|
|
|
689 |
*
|
|
|
690 |
* <p> The following general conversions may be applied to any argument type:
|
|
|
691 |
*
|
|
|
692 |
* <table cellpadding=5 summary="dgConv">
|
|
|
693 |
*
|
|
|
694 |
* <tr><td valign="top"> <tt>'b'</tt>
|
|
|
695 |
* <td valign="top"> <tt>'\u0062'</tt>
|
|
|
696 |
* <td> Produces either "<tt>true</tt>" or "<tt>false</tt>" as returned by
|
|
|
697 |
* {@link Boolean#toString(boolean)}.
|
|
|
698 |
*
|
|
|
699 |
* <p> If the argument is <tt>null</tt>, then the result is
|
|
|
700 |
* "<tt>false</tt>". If the argument is a <tt>boolean</tt> or {@link
|
|
|
701 |
* Boolean}, then the result is the string returned by {@link
|
|
|
702 |
* String#valueOf(boolean) String.valueOf()}. Otherwise, the result is
|
|
|
703 |
* "<tt>true</tt>".
|
|
|
704 |
*
|
|
|
705 |
* <p> If the <tt>'#'</tt> flag is given, then a {@link
|
|
|
706 |
* FormatFlagsConversionMismatchException} will be thrown.
|
|
|
707 |
*
|
|
|
708 |
* <tr><td valign="top"> <tt>'B'</tt>
|
|
|
709 |
* <td valign="top"> <tt>'\u0042'</tt>
|
|
|
710 |
* <td> The upper-case variant of <tt>'b'</tt>.
|
|
|
711 |
*
|
|
|
712 |
* <tr><td valign="top"> <tt>'h'</tt>
|
|
|
713 |
* <td valign="top"> <tt>'\u0068'</tt>
|
|
|
714 |
* <td> Produces a string representing the hash code value of the object.
|
|
|
715 |
*
|
|
|
716 |
* <p> If the argument, <i>arg</i> is <tt>null</tt>, then the
|
|
|
717 |
* result is "<tt>null</tt>". Otherwise, the result is obtained
|
|
|
718 |
* by invoking <tt>Integer.toHexString(arg.hashCode())</tt>.
|
|
|
719 |
*
|
|
|
720 |
* <p> If the <tt>'#'</tt> flag is given, then a {@link
|
|
|
721 |
* FormatFlagsConversionMismatchException} will be thrown.
|
|
|
722 |
*
|
|
|
723 |
* <tr><td valign="top"> <tt>'H'</tt>
|
|
|
724 |
* <td valign="top"> <tt>'\u0048'</tt>
|
|
|
725 |
* <td> The upper-case variant of <tt>'h'</tt>.
|
|
|
726 |
*
|
|
|
727 |
* <tr><td valign="top"> <tt>'s'</tt>
|
|
|
728 |
* <td valign="top"> <tt>'\u0073'</tt>
|
|
|
729 |
* <td> Produces a string.
|
|
|
730 |
*
|
|
|
731 |
* <p> If the argument is <tt>null</tt>, then the result is
|
|
|
732 |
* "<tt>null</tt>". If the argument implements {@link Formattable}, then
|
|
|
733 |
* its {@link Formattable#formatTo formatTo} method is invoked.
|
|
|
734 |
* Otherwise, the result is obtained by invoking the argument's
|
|
|
735 |
* <tt>toString()</tt> method.
|
|
|
736 |
*
|
|
|
737 |
* <p> If the <tt>'#'</tt> flag is given and the argument is not a {@link
|
|
|
738 |
* Formattable} , then a {@link FormatFlagsConversionMismatchException}
|
|
|
739 |
* will be thrown.
|
|
|
740 |
*
|
|
|
741 |
* <tr><td valign="top"> <tt>'S'</tt>
|
|
|
742 |
* <td valign="top"> <tt>'\u0053'</tt>
|
|
|
743 |
* <td> The upper-case variant of <tt>'s'</tt>.
|
|
|
744 |
*
|
|
|
745 |
* </table>
|
|
|
746 |
*
|
|
|
747 |
* <p> The following <a name="dFlags">flags</a> apply to general conversions:
|
|
|
748 |
*
|
|
|
749 |
* <table cellpadding=5 summary="dFlags">
|
|
|
750 |
*
|
|
|
751 |
* <tr><td valign="top"> <tt>'-'</tt>
|
|
|
752 |
* <td valign="top"> <tt>'\u002d'</tt>
|
|
|
753 |
* <td> Left justifies the output. Spaces (<tt>'\u0020'</tt>) will be
|
|
|
754 |
* added at the end of the converted value as required to fill the minimum
|
|
|
755 |
* width of the field. If the width is not provided, then a {@link
|
|
|
756 |
* MissingFormatWidthException} will be thrown. If this flag is not given
|
|
|
757 |
* then the output will be right-justified.
|
|
|
758 |
*
|
|
|
759 |
* <tr><td valign="top"> <tt>'#'</tt>
|
|
|
760 |
* <td valign="top"> <tt>'\u0023'</tt>
|
|
|
761 |
* <td> Requires the output use an alternate form. The definition of the
|
|
|
762 |
* form is specified by the conversion.
|
|
|
763 |
*
|
|
|
764 |
* </table>
|
|
|
765 |
*
|
|
|
766 |
* <p> The <a name="genWidth">width</a> is the minimum number of characters to
|
|
|
767 |
* be written to the
|
|
|
768 |
* output. If the length of the converted value is less than the width then
|
|
|
769 |
* the output will be padded by <tt>' '</tt> (<tt>\u0020'</tt>)
|
|
|
770 |
* until the total number of characters equals the width. The padding is on
|
|
|
771 |
* the left by default. If the <tt>'-'</tt> flag is given, then the padding
|
|
|
772 |
* will be on the right. If the width is not specified then there is no
|
|
|
773 |
* minimum.
|
|
|
774 |
*
|
|
|
775 |
* <p> The precision is the maximum number of characters to be written to the
|
|
|
776 |
* output. The precision is applied before the width, thus the output will be
|
|
|
777 |
* truncated to <tt>precision</tt> characters even if the width is greater than
|
|
|
778 |
* the precision. If the precision is not specified then there is no explicit
|
|
|
779 |
* limit on the number of characters.
|
|
|
780 |
*
|
|
|
781 |
* <h4><a name="dchar">Character</a></h4>
|
|
|
782 |
*
|
|
|
783 |
* This conversion may be applied to <tt>char</tt> and {@link Character}. It
|
|
|
784 |
* may also be applied to the types <tt>byte</tt>, {@link Byte},
|
|
|
785 |
* <tt>short</tt>, and {@link Short}, <tt>int</tt> and {@link Integer} when
|
|
|
786 |
* {@link Character#isValidCodePoint} returns <tt>true</tt>. If it returns
|
|
|
787 |
* <tt>false</tt> then an {@link IllegalFormatCodePointException} will be
|
|
|
788 |
* thrown.
|
|
|
789 |
*
|
|
|
790 |
* <table cellpadding=5 summary="charConv">
|
|
|
791 |
*
|
|
|
792 |
* <tr><td valign="top"> <tt>'c'</tt>
|
|
|
793 |
* <td valign="top"> <tt>'\u0063'</tt>
|
|
|
794 |
* <td> Formats the argument as a Unicode character as described in <a
|
|
|
795 |
* href="../lang/Character.html#unicode">Unicode Character
|
|
|
796 |
* Representation</a>. This may be more than one 16-bit <tt>char</tt> in
|
|
|
797 |
* the case where the argument represents a supplementary character.
|
|
|
798 |
*
|
|
|
799 |
* <p> If the <tt>'#'</tt> flag is given, then a {@link
|
|
|
800 |
* FormatFlagsConversionMismatchException} will be thrown.
|
|
|
801 |
*
|
|
|
802 |
* <tr><td valign="top"> <tt>'C'</tt>
|
|
|
803 |
* <td valign="top"> <tt>'\u0043'</tt>
|
|
|
804 |
* <td> The upper-case variant of <tt>'c'</tt>.
|
|
|
805 |
*
|
|
|
806 |
* </table>
|
|
|
807 |
*
|
|
|
808 |
* <p> The <tt>'-'</tt> flag defined for <a href="#dFlags">General
|
|
|
809 |
* conversions</a> applies. If the <tt>'#'</tt> flag is given, then a {@link
|
|
|
810 |
* FormatFlagsConversionMismatchException} will be thrown.
|
|
|
811 |
*
|
|
|
812 |
* <p> The width is defined as for <a href="#genWidth">General conversions</a>.
|
|
|
813 |
*
|
|
|
814 |
* <p> The precision is not applicable. If the precision is specified then an
|
|
|
815 |
* {@link IllegalFormatPrecisionException} will be thrown.
|
|
|
816 |
*
|
|
|
817 |
* <h4><a name="dnum">Numeric</a></h4>
|
|
|
818 |
*
|
|
|
819 |
* <p> Numeric conversions are divided into the following categories:
|
|
|
820 |
*
|
|
|
821 |
* <ol>
|
|
|
822 |
*
|
|
|
823 |
* <li> <a href="#dnint"><b>Byte, Short, Integer, and Long</b></a>
|
|
|
824 |
*
|
|
|
825 |
* <li> <a href="#dnbint"><b>BigInteger</b></a>
|
|
|
826 |
*
|
|
|
827 |
* <li> <a href="#dndec"><b>Float and Double</b></a>
|
|
|
828 |
*
|
|
|
829 |
* <li> <a href="#dndec"><b>BigDecimal</b></a>
|
|
|
830 |
*
|
|
|
831 |
* </ol>
|
|
|
832 |
*
|
|
|
833 |
* <p> Numeric types will be formatted according to the following algorithm:
|
|
|
834 |
*
|
|
|
835 |
* <p><b><a name="l10n algorithm"> Number Localization Algorithm</a></b>
|
|
|
836 |
*
|
|
|
837 |
* <p> After digits are obtained for the integer part, fractional part, and
|
|
|
838 |
* exponent (as appropriate for the data type), the following transformation
|
|
|
839 |
* is applied:
|
|
|
840 |
*
|
|
|
841 |
* <ol>
|
|
|
842 |
*
|
|
|
843 |
* <li> Each digit character <i>d</i> in the string is replaced by a
|
|
|
844 |
* locale-specific digit computed relative to the current locale's
|
|
|
845 |
* {@linkplain java.text.DecimalFormatSymbols#getZeroDigit() zero digit}
|
|
|
846 |
* <i>z</i>; that is <i>d - </i> <tt>'0'</tt>
|
|
|
847 |
* <i> + z</i>.
|
|
|
848 |
*
|
|
|
849 |
* <li> If a decimal separator is present, a locale-specific {@linkplain
|
|
|
850 |
* java.text.DecimalFormatSymbols#getDecimalSeparator decimal separator} is
|
|
|
851 |
* substituted.
|
|
|
852 |
*
|
|
|
853 |
* <li> If the <tt>','</tt> (<tt>'\u002c'</tt>)
|
|
|
854 |
* <a name="l10n group">flag</a> is given, then the locale-specific {@linkplain
|
|
|
855 |
* java.text.DecimalFormatSymbols#getGroupingSeparator grouping separator} is
|
|
|
856 |
* inserted by scanning the integer part of the string from least significant
|
|
|
857 |
* to most significant digits and inserting a separator at intervals defined by
|
|
|
858 |
* the locale's {@linkplain java.text.DecimalFormat#getGroupingSize() grouping
|
|
|
859 |
* size}.
|
|
|
860 |
*
|
|
|
861 |
* <li> If the <tt>'0'</tt> flag is given, then the locale-specific {@linkplain
|
|
|
862 |
* java.text.DecimalFormatSymbols#getZeroDigit() zero digits} are inserted
|
|
|
863 |
* after the sign character, if any, and before the first non-zero digit, until
|
|
|
864 |
* the length of the string is equal to the requested field width.
|
|
|
865 |
*
|
|
|
866 |
* <li> If the value is negative and the <tt>'('</tt> flag is given, then a
|
|
|
867 |
* <tt>'('</tt> (<tt>'\u0028'</tt>) is prepended and a <tt>')'</tt>
|
|
|
868 |
* (<tt>'\u0029'</tt>) is appended.
|
|
|
869 |
*
|
|
|
870 |
* <li> If the value is negative (or floating-point negative zero) and
|
|
|
871 |
* <tt>'('</tt> flag is not given, then a <tt>'-'</tt> (<tt>'\u002d'</tt>)
|
|
|
872 |
* is prepended.
|
|
|
873 |
*
|
|
|
874 |
* <li> If the <tt>'+'</tt> flag is given and the value is positive or zero (or
|
|
|
875 |
* floating-point positive zero), then a <tt>'+'</tt> (<tt>'\u002b'</tt>)
|
|
|
876 |
* will be prepended.
|
|
|
877 |
*
|
|
|
878 |
* </ol>
|
|
|
879 |
*
|
|
|
880 |
* <p> If the value is NaN or positive infinity the literal strings "NaN" or
|
|
|
881 |
* "Infinity" respectively, will be output. If the value is negative infinity,
|
|
|
882 |
* then the output will be "(Infinity)" if the <tt>'('</tt> flag is given
|
|
|
883 |
* otherwise the output will be "-Infinity". These values are not localized.
|
|
|
884 |
*
|
|
|
885 |
* <p><a name="dnint"><b> Byte, Short, Integer, and Long </b></a>
|
|
|
886 |
*
|
|
|
887 |
* <p> The following conversions may be applied to <tt>byte</tt>, {@link Byte},
|
|
|
888 |
* <tt>short</tt>, {@link Short}, <tt>int</tt> and {@link Integer},
|
|
|
889 |
* <tt>long</tt>, and {@link Long}.
|
|
|
890 |
*
|
|
|
891 |
* <table cellpadding=5 summary="IntConv">
|
|
|
892 |
*
|
|
|
893 |
* <tr><td valign="top"> <tt>'d'</tt>
|
|
|
894 |
* <td valign="top"> <tt>'\u0054'</tt>
|
|
|
895 |
* <td> Formats the argument as a decimal integer. The <a
|
|
|
896 |
* href="#l10n algorithm">localization algorithm</a> is applied.
|
|
|
897 |
*
|
|
|
898 |
* <p> If the <tt>'0'</tt> flag is given and the value is negative, then
|
|
|
899 |
* the zero padding will occur after the sign.
|
|
|
900 |
*
|
|
|
901 |
* <p> If the <tt>'#'</tt> flag is given then a {@link
|
|
|
902 |
* FormatFlagsConversionMismatchException} will be thrown.
|
|
|
903 |
*
|
|
|
904 |
* <tr><td valign="top"> <tt>'o'</tt>
|
|
|
905 |
* <td valign="top"> <tt>'\u006f'</tt>
|
|
|
906 |
* <td> Formats the argument as an integer in base eight. No localization
|
|
|
907 |
* is applied.
|
|
|
908 |
*
|
|
|
909 |
* <p> If <i>x</i> is negative then the result will be an unsigned value
|
|
|
910 |
* generated by adding 2<sup>n</sup> to the value where <tt>n</tt> is the
|
|
|
911 |
* number of bits in the type as returned by the static <tt>SIZE</tt> field
|
|
|
912 |
* in the {@linkplain Byte#SIZE Byte}, {@linkplain Short#SIZE Short},
|
|
|
913 |
* {@linkplain Integer#SIZE Integer}, or {@linkplain Long#SIZE Long}
|
|
|
914 |
* classes as appropriate.
|
|
|
915 |
*
|
|
|
916 |
* <p> If the <tt>'#'</tt> flag is given then the output will always begin
|
|
|
917 |
* with the radix indicator <tt>'0'</tt>.
|
|
|
918 |
*
|
|
|
919 |
* <p> If the <tt>'0'</tt> flag is given then the output will be padded
|
|
|
920 |
* with leading zeros to the field width following any indication of sign.
|
|
|
921 |
*
|
|
|
922 |
* <p> If <tt>'('</tt>, <tt>'+'</tt>, '  ', or <tt>','</tt> flags
|
|
|
923 |
* are given then a {@link FormatFlagsConversionMismatchException} will be
|
|
|
924 |
* thrown.
|
|
|
925 |
*
|
|
|
926 |
* <tr><td valign="top"> <tt>'x'</tt>
|
|
|
927 |
* <td valign="top"> <tt>'\u0078'</tt>
|
|
|
928 |
* <td> Formats the argument as an integer in base sixteen. No
|
|
|
929 |
* localization is applied.
|
|
|
930 |
*
|
|
|
931 |
* <p> If <i>x</i> is negative then the result will be an unsigned value
|
|
|
932 |
* generated by adding 2<sup>n</sup> to the value where <tt>n</tt> is the
|
|
|
933 |
* number of bits in the type as returned by the static <tt>SIZE</tt> field
|
|
|
934 |
* in the {@linkplain Byte#SIZE Byte}, {@linkplain Short#SIZE Short},
|
|
|
935 |
* {@linkplain Integer#SIZE Integer}, or {@linkplain Long#SIZE Long}
|
|
|
936 |
* classes as appropriate.
|
|
|
937 |
*
|
|
|
938 |
* <p> If the <tt>'#'</tt> flag is given then the output will always begin
|
|
|
939 |
* with the radix indicator <tt>"0x"</tt>.
|
|
|
940 |
*
|
|
|
941 |
* <p> If the <tt>'0'</tt> flag is given then the output will be padded to
|
|
|
942 |
* the field width with leading zeros after the radix indicator or sign (if
|
|
|
943 |
* present).
|
|
|
944 |
*
|
|
|
945 |
* <p> If <tt>'('</tt>, <tt>' '</tt>, <tt>'+'</tt>, or
|
|
|
946 |
* <tt>','</tt> flags are given then a {@link
|
|
|
947 |
* FormatFlagsConversionMismatchException} will be thrown.
|
|
|
948 |
*
|
|
|
949 |
* <tr><td valign="top"> <tt>'X'</tt>
|
|
|
950 |
* <td valign="top"> <tt>'\u0058'</tt>
|
|
|
951 |
* <td> The upper-case variant of <tt>'x'</tt>. The entire string
|
|
|
952 |
* representing the number will be converted to {@linkplain
|
|
|
953 |
* String#toUpperCase upper case} including the <tt>'x'</tt> (if any) and
|
|
|
954 |
* all hexadecimal digits <tt>'a'</tt> - <tt>'f'</tt>
|
|
|
955 |
* (<tt>'\u0061'</tt> - <tt>'\u0066'</tt>).
|
|
|
956 |
*
|
|
|
957 |
* </table>
|
|
|
958 |
*
|
|
|
959 |
* <p> If the conversion is <tt>'o'</tt>, <tt>'x'</tt>, or <tt>'X'</tt> and
|
|
|
960 |
* both the <tt>'#'</tt> and the <tt>'0'</tt> flags are given, then result will
|
|
|
961 |
* contain the radix indicator (<tt>'0'</tt> for octal and <tt>"0x"</tt> or
|
|
|
962 |
* <tt>"0X"</tt> for hexadecimal), some number of zeros (based on the width),
|
|
|
963 |
* and the value.
|
|
|
964 |
*
|
|
|
965 |
* <p> If the <tt>'-'</tt> flag is not given, then the space padding will occur
|
|
|
966 |
* before the sign.
|
|
|
967 |
*
|
|
|
968 |
* <p> The following <a name="intFlags">flags</a> apply to numeric integral
|
|
|
969 |
* conversions:
|
|
|
970 |
*
|
|
|
971 |
* <table cellpadding=5 summary="intFlags">
|
|
|
972 |
*
|
|
|
973 |
* <tr><td valign="top"> <tt>'+'</tt>
|
|
|
974 |
* <td valign="top"> <tt>'\u002b'</tt>
|
|
|
975 |
* <td> Requires the output to include a positive sign for all positive
|
|
|
976 |
* numbers. If this flag is not given then only negative values will
|
|
|
977 |
* include a sign.
|
|
|
978 |
*
|
|
|
979 |
* <p> If both the <tt>'+'</tt> and <tt>' '</tt> flags are given
|
|
|
980 |
* then an {@link IllegalFormatFlagsException} will be thrown.
|
|
|
981 |
*
|
|
|
982 |
* <tr><td valign="top"> <tt>' '</tt>
|
|
|
983 |
* <td valign="top"> <tt>'\u0020'</tt>
|
|
|
984 |
* <td> Requires the output to include a single extra space
|
|
|
985 |
* (<tt>'\u0020'</tt>) for non-negative values.
|
|
|
986 |
*
|
|
|
987 |
* <p> If both the <tt>'+'</tt> and <tt>' '</tt> flags are given
|
|
|
988 |
* then an {@link IllegalFormatFlagsException} will be thrown.
|
|
|
989 |
*
|
|
|
990 |
* <tr><td valign="top"> <tt>'0'</tt>
|
|
|
991 |
* <td valign="top"> <tt>'\u0030'</tt>
|
|
|
992 |
* <td> Requires the output to be padded with leading {@linkplain
|
|
|
993 |
* java.text.DecimalFormatSymbols#getZeroDigit zeros} to the minimum field
|
|
|
994 |
* width following any sign or radix indicator except when converting NaN
|
|
|
995 |
* or infinity. If the width is not provided, then a {@link
|
|
|
996 |
* MissingFormatWidthException} will be thrown.
|
|
|
997 |
*
|
|
|
998 |
* <p> If both the <tt>'-'</tt> and <tt>'0'</tt> flags are given then an
|
|
|
999 |
* {@link IllegalFormatFlagsException} will be thrown.
|
|
|
1000 |
*
|
|
|
1001 |
* <tr><td valign="top"> <tt>','</tt>
|
|
|
1002 |
* <td valign="top"> <tt>'\u002c'</tt>
|
|
|
1003 |
* <td> Requires the output to include the locale-specific {@linkplain
|
|
|
1004 |
* java.text.DecimalFormatSymbols#getGroupingSeparator group separators} as
|
|
|
1005 |
* described in the <a href="#l10n group">"group" section</a> of the
|
|
|
1006 |
* localization algorithm.
|
|
|
1007 |
*
|
|
|
1008 |
* <tr><td valign="top"> <tt>'('</tt>
|
|
|
1009 |
* <td valign="top"> <tt>'\u0028'</tt>
|
|
|
1010 |
* <td> Requires the output to prepend a <tt>'('</tt>
|
|
|
1011 |
* (<tt>'\u0028'</tt>) and append a <tt>')'</tt>
|
|
|
1012 |
* (<tt>'\u0029'</tt>) to negative values.
|
|
|
1013 |
*
|
|
|
1014 |
* </table>
|
|
|
1015 |
*
|
|
|
1016 |
* <p> If no <a name="intdFlags">flags</a> are given the default formatting is
|
|
|
1017 |
* as follows:
|
|
|
1018 |
*
|
|
|
1019 |
* <ul>
|
|
|
1020 |
*
|
|
|
1021 |
* <li> The output is right-justified within the <tt>width</tt>
|
|
|
1022 |
*
|
|
|
1023 |
* <li> Negative numbers begin with a <tt>'-'</tt> (<tt>'\u002d'</tt>)
|
|
|
1024 |
*
|
|
|
1025 |
* <li> Positive numbers and zero do not include a sign or extra leading
|
|
|
1026 |
* space
|
|
|
1027 |
*
|
|
|
1028 |
* <li> No grouping separators are included
|
|
|
1029 |
*
|
|
|
1030 |
* </ul>
|
|
|
1031 |
*
|
|
|
1032 |
* <p> The <a name="intWidth">width</a> is the minimum number of characters to
|
|
|
1033 |
* be written to the output. This includes any signs, digits, grouping
|
|
|
1034 |
* separators, radix indicator, and parentheses. If the length of the
|
|
|
1035 |
* converted value is less than the width then the output will be padded by
|
|
|
1036 |
* spaces (<tt>'\u0020'</tt>) until the total number of characters equals
|
|
|
1037 |
* width. The padding is on the left by default. If <tt>'-'</tt> flag is
|
|
|
1038 |
* given then the padding will be on the right. If width is not specified then
|
|
|
1039 |
* there is no minimum.
|
|
|
1040 |
*
|
|
|
1041 |
* <p> The precision is not applicable. If precision is specified then an
|
|
|
1042 |
* {@link IllegalFormatPrecisionException} will be thrown.
|
|
|
1043 |
*
|
|
|
1044 |
* <p><a name="dnbint"><b> BigInteger </b></a>
|
|
|
1045 |
*
|
|
|
1046 |
* <p> The following conversions may be applied to {@link
|
|
|
1047 |
* java.math.BigInteger}.
|
|
|
1048 |
*
|
|
|
1049 |
* <table cellpadding=5 summary="BIntConv">
|
|
|
1050 |
*
|
|
|
1051 |
* <tr><td valign="top"> <tt>'d'</tt>
|
|
|
1052 |
* <td valign="top"> <tt>'\u0054'</tt>
|
|
|
1053 |
* <td> Requires the output to be formatted as a decimal integer. The <a
|
|
|
1054 |
* href="#l10n algorithm">localization algorithm</a> is applied.
|
|
|
1055 |
*
|
|
|
1056 |
* <p> If the <tt>'#'</tt> flag is given {@link
|
|
|
1057 |
* FormatFlagsConversionMismatchException} will be thrown.
|
|
|
1058 |
*
|
|
|
1059 |
* <tr><td valign="top"> <tt>'o'</tt>
|
|
|
1060 |
* <td valign="top"> <tt>'\u006f'</tt>
|
|
|
1061 |
* <td> Requires the output to be formatted as an integer in base eight.
|
|
|
1062 |
* No localization is applied.
|
|
|
1063 |
*
|
|
|
1064 |
* <p> If <i>x</i> is negative then the result will be a signed value
|
|
|
1065 |
* beginning with <tt>'-'</tt> (<tt>'\u002d'</tt>). Signed output is
|
|
|
1066 |
* allowed for this type because unlike the primitive types it is not
|
|
|
1067 |
* possible to create an unsigned equivalent without assuming an explicit
|
|
|
1068 |
* data-type size.
|
|
|
1069 |
*
|
|
|
1070 |
* <p> If <i>x</i> is positive or zero and the <tt>'+'</tt> flag is given
|
|
|
1071 |
* then the result will begin with <tt>'+'</tt> (<tt>'\u002b'</tt>).
|
|
|
1072 |
*
|
|
|
1073 |
* <p> If the <tt>'#'</tt> flag is given then the output will always begin
|
|
|
1074 |
* with <tt>'0'</tt> prefix.
|
|
|
1075 |
*
|
|
|
1076 |
* <p> If the <tt>'0'</tt> flag is given then the output will be padded
|
|
|
1077 |
* with leading zeros to the field width following any indication of sign.
|
|
|
1078 |
*
|
|
|
1079 |
* <p> If the <tt>','</tt> flag is given then a {@link
|
|
|
1080 |
* FormatFlagsConversionMismatchException} will be thrown.
|
|
|
1081 |
*
|
|
|
1082 |
* <tr><td valign="top"> <tt>'x'</tt>
|
|
|
1083 |
* <td valign="top"> <tt>'\u0078'</tt>
|
|
|
1084 |
* <td> Requires the output to be formatted as an integer in base
|
|
|
1085 |
* sixteen. No localization is applied.
|
|
|
1086 |
*
|
|
|
1087 |
* <p> If <i>x</i> is negative then the result will be a signed value
|
|
|
1088 |
* beginning with <tt>'-'</tt> (<tt>'\u002d'</tt>). Signed output is
|
|
|
1089 |
* allowed for this type because unlike the primitive types it is not
|
|
|
1090 |
* possible to create an unsigned equivalent without assuming an explicit
|
|
|
1091 |
* data-type size.
|
|
|
1092 |
*
|
|
|
1093 |
* <p> If <i>x</i> is positive or zero and the <tt>'+'</tt> flag is given
|
|
|
1094 |
* then the result will begin with <tt>'+'</tt> (<tt>'\u002b'</tt>).
|
|
|
1095 |
*
|
|
|
1096 |
* <p> If the <tt>'#'</tt> flag is given then the output will always begin
|
|
|
1097 |
* with the radix indicator <tt>"0x"</tt>.
|
|
|
1098 |
*
|
|
|
1099 |
* <p> If the <tt>'0'</tt> flag is given then the output will be padded to
|
|
|
1100 |
* the field width with leading zeros after the radix indicator or sign (if
|
|
|
1101 |
* present).
|
|
|
1102 |
*
|
|
|
1103 |
* <p> If the <tt>','</tt> flag is given then a {@link
|
|
|
1104 |
* FormatFlagsConversionMismatchException} will be thrown.
|
|
|
1105 |
*
|
|
|
1106 |
* <tr><td valign="top"> <tt>'X'</tt>
|
|
|
1107 |
* <td valign="top"> <tt>'\u0058'</tt>
|
|
|
1108 |
* <td> The upper-case variant of <tt>'x'</tt>. The entire string
|
|
|
1109 |
* representing the number will be converted to {@linkplain
|
|
|
1110 |
* String#toUpperCase upper case} including the <tt>'x'</tt> (if any) and
|
|
|
1111 |
* all hexadecimal digits <tt>'a'</tt> - <tt>'f'</tt>
|
|
|
1112 |
* (<tt>'\u0061'</tt> - <tt>'\u0066'</tt>).
|
|
|
1113 |
*
|
|
|
1114 |
* </table>
|
|
|
1115 |
*
|
|
|
1116 |
* <p> If the conversion is <tt>'o'</tt>, <tt>'x'</tt>, or <tt>'X'</tt> and
|
|
|
1117 |
* both the <tt>'#'</tt> and the <tt>'0'</tt> flags are given, then result will
|
|
|
1118 |
* contain the base indicator (<tt>'0'</tt> for octal and <tt>"0x"</tt> or
|
|
|
1119 |
* <tt>"0X"</tt> for hexadecimal), some number of zeros (based on the width),
|
|
|
1120 |
* and the value.
|
|
|
1121 |
*
|
|
|
1122 |
* <p> If the <tt>'0'</tt> flag is given and the value is negative, then the
|
|
|
1123 |
* zero padding will occur after the sign.
|
|
|
1124 |
*
|
|
|
1125 |
* <p> If the <tt>'-'</tt> flag is not given, then the space padding will occur
|
|
|
1126 |
* before the sign.
|
|
|
1127 |
*
|
|
|
1128 |
* <p> All <a href="#intFlags">flags</a> defined for Byte, Short, Integer, and
|
|
|
1129 |
* Long apply. The <a href="#intdFlags">default behavior</a> when no flags are
|
|
|
1130 |
* given is the same as for Byte, Short, Integer, and Long.
|
|
|
1131 |
*
|
|
|
1132 |
* <p> The specification of <a href="#intWidth">width</a> is the same as
|
|
|
1133 |
* defined for Byte, Short, Integer, and Long.
|
|
|
1134 |
*
|
|
|
1135 |
* <p> The precision is not applicable. If precision is specified then an
|
|
|
1136 |
* {@link IllegalFormatPrecisionException} will be thrown.
|
|
|
1137 |
*
|
|
|
1138 |
* <p><a name="dndec"><b> Float and Double</b></a>
|
|
|
1139 |
*
|
|
|
1140 |
* <p> The following conversions may be applied to <tt>float</tt>, {@link
|
|
|
1141 |
* Float}, <tt>double</tt> and {@link Double}.
|
|
|
1142 |
*
|
|
|
1143 |
* <table cellpadding=5 summary="floatConv">
|
|
|
1144 |
*
|
|
|
1145 |
* <tr><td valign="top"> <tt>'e'</tt>
|
|
|
1146 |
* <td valign="top"> <tt>'\u0065'</tt>
|
|
|
1147 |
* <td> Requires the output to be formatted using <a
|
|
|
1148 |
* name="scientific">computerized scientific notation</a>. The <a
|
|
|
1149 |
* href="#l10n algorithm">localization algorithm</a> is applied.
|
|
|
1150 |
*
|
|
|
1151 |
* <p> The formatting of the magnitude <i>m</i> depends upon its value.
|
|
|
1152 |
*
|
|
|
1153 |
* <p> If <i>m</i> is NaN or infinite, the literal strings "NaN" or
|
|
|
1154 |
* "Infinity", respectively, will be output. These values are not
|
|
|
1155 |
* localized.
|
|
|
1156 |
*
|
|
|
1157 |
* <p> If <i>m</i> is positive-zero or negative-zero, then the exponent
|
|
|
1158 |
* will be <tt>"+00"</tt>.
|
|
|
1159 |
*
|
|
|
1160 |
* <p> Otherwise, the result is a string that represents the sign and
|
|
|
1161 |
* magnitude (absolute value) of the argument. The formatting of the sign
|
|
|
1162 |
* is described in the <a href="#l10n algorithm">localization
|
|
|
1163 |
* algorithm</a>. The formatting of the magnitude <i>m</i> depends upon its
|
|
|
1164 |
* value.
|
|
|
1165 |
*
|
|
|
1166 |
* <p> Let <i>n</i> be the unique integer such that 10<sup><i>n</i></sup>
|
|
|
1167 |
* <= <i>m</i> < 10<sup><i>n</i>+1</sup>; then let <i>a</i> be the
|
|
|
1168 |
* mathematically exact quotient of <i>m</i> and 10<sup><i>n</i></sup> so
|
|
|
1169 |
* that 1 <= <i>a</i> < 10. The magnitude is then represented as the
|
|
|
1170 |
* integer part of <i>a</i>, as a single decimal digit, followed by the
|
|
|
1171 |
* decimal separator followed by decimal digits representing the fractional
|
|
|
1172 |
* part of <i>a</i>, followed by the exponent symbol <tt>'e'</tt>
|
|
|
1173 |
* (<tt>'\u0065'</tt>), followed by the sign of the exponent, followed
|
|
|
1174 |
* by a representation of <i>n</i> as a decimal integer, as produced by the
|
|
|
1175 |
* method {@link Long#toString(long, int)}, and zero-padded to include at
|
|
|
1176 |
* least two digits.
|
|
|
1177 |
*
|
|
|
1178 |
* <p> The number of digits in the result for the fractional part of
|
|
|
1179 |
* <i>m</i> or <i>a</i> is equal to the precision. If the precision is not
|
|
|
1180 |
* specified then the default value is <tt>6</tt>. If the precision is less
|
|
|
1181 |
* than the number of digits which would appear after the decimal point in
|
|
|
1182 |
* the string returned by {@link Float#toString(float)} or {@link
|
|
|
1183 |
* Double#toString(double)} respectively, then the value will be rounded
|
|
|
1184 |
* using the {@linkplain java.math.BigDecimal#ROUND_HALF_UP round half up
|
|
|
1185 |
* algorithm}. Otherwise, zeros may be appended to reach the precision.
|
|
|
1186 |
* For a canonical representation of the value, use {@link
|
|
|
1187 |
* Float#toString(float)} or {@link Double#toString(double)} as
|
|
|
1188 |
* appropriate.
|
|
|
1189 |
*
|
|
|
1190 |
* <p>If the <tt>','</tt> flag is given, then an {@link
|
|
|
1191 |
* FormatFlagsConversionMismatchException} will be thrown.
|
|
|
1192 |
*
|
|
|
1193 |
* <tr><td valign="top"> <tt>'E'</tt>
|
|
|
1194 |
* <td valign="top"> <tt>'\u0045'</tt>
|
|
|
1195 |
* <td> The upper-case variant of <tt>'e'</tt>. The exponent symbol
|
|
|
1196 |
* will be <tt>'E'</tt> (<tt>'\u0045'</tt>).
|
|
|
1197 |
*
|
|
|
1198 |
* <tr><td valign="top"> <tt>'g'</tt>
|
|
|
1199 |
* <td valign="top"> <tt>'\u0067'</tt>
|
|
|
1200 |
* <td> Requires the output to be formatted in general scientific notation
|
|
|
1201 |
* as described below. The <a href="#l10n algorithm">localization
|
|
|
1202 |
* algorithm</a> is applied.
|
|
|
1203 |
*
|
|
|
1204 |
* <p> After rounding for the precision, the formatting of the resulting
|
|
|
1205 |
* magnitude <i>m</i> depends on its value.
|
|
|
1206 |
*
|
|
|
1207 |
* <p> If <i>m</i> is greater than or equal to 10<sup>-4</sup> but less
|
|
|
1208 |
* than 10<sup>precision</sup> then it is represented in <i><a
|
|
|
1209 |
* href="#decimal">decimal format</a></i>.
|
|
|
1210 |
*
|
|
|
1211 |
* <p> If <i>m</i> is less than 10<sup>-4</sup> or greater than or equal to
|
|
|
1212 |
* 10<sup>precision</sup>, then it is represented in <i><a
|
|
|
1213 |
* href="#scientific">computerized scientific notation</a></i>.
|
|
|
1214 |
*
|
|
|
1215 |
* <p> The total number of significant digits in <i>m</i> is equal to the
|
|
|
1216 |
* precision. If the precision is not specified, then the default value is
|
|
|
1217 |
* <tt>6</tt>. If the precision is <tt>0</tt>, then it is taken to be
|
|
|
1218 |
* <tt>1</tt>.
|
|
|
1219 |
*
|
|
|
1220 |
* <p> If the <tt>'#'</tt> flag is given then an {@link
|
|
|
1221 |
* FormatFlagsConversionMismatchException} will be thrown.
|
|
|
1222 |
*
|
|
|
1223 |
* <tr><td valign="top"> <tt>'G'</tt>
|
|
|
1224 |
* <td valign="top"> <tt>'\u0047'</tt>
|
|
|
1225 |
* <td> The upper-case variant of <tt>'g'</tt>.
|
|
|
1226 |
*
|
|
|
1227 |
* <tr><td valign="top"> <tt>'f'</tt>
|
|
|
1228 |
* <td valign="top"> <tt>'\u0066'</tt>
|
|
|
1229 |
* <td> Requires the output to be formatted using <a name="decimal">decimal
|
|
|
1230 |
* format</a>. The <a href="#l10n algorithm">localization algorithm</a> is
|
|
|
1231 |
* applied.
|
|
|
1232 |
*
|
|
|
1233 |
* <p> The result is a string that represents the sign and magnitude
|
|
|
1234 |
* (absolute value) of the argument. The formatting of the sign is
|
|
|
1235 |
* described in the <a href="#l10n algorithm">localization
|
|
|
1236 |
* algorithm</a>. The formatting of the magnitude <i>m</i> depends upon its
|
|
|
1237 |
* value.
|
|
|
1238 |
*
|
|
|
1239 |
* <p> If <i>m</i> NaN or infinite, the literal strings "NaN" or
|
|
|
1240 |
* "Infinity", respectively, will be output. These values are not
|
|
|
1241 |
* localized.
|
|
|
1242 |
*
|
|
|
1243 |
* <p> The magnitude is formatted as the integer part of <i>m</i>, with no
|
|
|
1244 |
* leading zeroes, followed by the decimal separator followed by one or
|
|
|
1245 |
* more decimal digits representing the fractional part of <i>m</i>.
|
|
|
1246 |
*
|
|
|
1247 |
* <p> The number of digits in the result for the fractional part of
|
|
|
1248 |
* <i>m</i> or <i>a</i> is equal to the precision. If the precision is not
|
|
|
1249 |
* specified then the default value is <tt>6</tt>. If the precision is less
|
|
|
1250 |
* than the number of digits which would appear after the decimal point in
|
|
|
1251 |
* the string returned by {@link Float#toString(float)} or {@link
|
|
|
1252 |
* Double#toString(double)} respectively, then the value will be rounded
|
|
|
1253 |
* using the {@linkplain java.math.BigDecimal#ROUND_HALF_UP round half up
|
|
|
1254 |
* algorithm}. Otherwise, zeros may be appended to reach the precision.
|
|
|
1255 |
* For a canonical representation of the value,use {@link
|
|
|
1256 |
* Float#toString(float)} or {@link Double#toString(double)} as
|
|
|
1257 |
* appropriate.
|
|
|
1258 |
*
|
|
|
1259 |
* <tr><td valign="top"> <tt>'a'</tt>
|
|
|
1260 |
* <td valign="top"> <tt>'\u0061'</tt>
|
|
|
1261 |
* <td> Requires the output to be formatted in hexadecimal exponential
|
|
|
1262 |
* form. No localization is applied.
|
|
|
1263 |
*
|
|
|
1264 |
* <p> The result is a string that represents the sign and magnitude
|
|
|
1265 |
* (absolute value) of the argument <i>x</i>.
|
|
|
1266 |
*
|
|
|
1267 |
* <p> If <i>x</i> is negative or a negative-zero value then the result
|
|
|
1268 |
* will begin with <tt>'-'</tt> (<tt>'\u002d'</tt>).
|
|
|
1269 |
*
|
|
|
1270 |
* <p> If <i>x</i> is positive or a positive-zero value and the
|
|
|
1271 |
* <tt>'+'</tt> flag is given then the result will begin with <tt>'+'</tt>
|
|
|
1272 |
* (<tt>'\u002b'</tt>).
|
|
|
1273 |
*
|
|
|
1274 |
* <p> The formatting of the magnitude <i>m</i> depends upon its value.
|
|
|
1275 |
*
|
|
|
1276 |
* <ul>
|
|
|
1277 |
*
|
|
|
1278 |
* <li> If the value is NaN or infinite, the literal strings "NaN" or
|
|
|
1279 |
* "Infinity", respectively, will be output.
|
|
|
1280 |
*
|
|
|
1281 |
* <li> If <i>m</i> is zero then it is represented by the string
|
|
|
1282 |
* <tt>"0x0.0p0"</tt>.
|
|
|
1283 |
*
|
|
|
1284 |
* <li> If <i>m</i> is a <tt>double</tt> value with a normalized
|
|
|
1285 |
* representation then substrings are used to represent the significand and
|
|
|
1286 |
* exponent fields. The significand is represented by the characters
|
|
|
1287 |
* <tt>"0x1."</tt> followed by the hexadecimal representation of the rest
|
|
|
1288 |
* of the significand as a fraction. The exponent is represented by
|
|
|
1289 |
* <tt>'p'</tt> (<tt>'\u0070'</tt>) followed by a decimal string of the
|
|
|
1290 |
* unbiased exponent as if produced by invoking {@link
|
|
|
1291 |
* Integer#toString(int) Integer.toString} on the exponent value.
|
|
|
1292 |
*
|
|
|
1293 |
* <li> If <i>m</i> is a <tt>double</tt> value with a subnormal
|
|
|
1294 |
* representation then the significand is represented by the characters
|
|
|
1295 |
* <tt>'0x0.'</tt> followed by the hexadecimal representation of the rest
|
|
|
1296 |
* of the significand as a fraction. The exponent is represented by
|
|
|
1297 |
* <tt>'p-1022'</tt>. Note that there must be at least one nonzero digit
|
|
|
1298 |
* in a subnormal significand.
|
|
|
1299 |
*
|
|
|
1300 |
* </ul>
|
|
|
1301 |
*
|
|
|
1302 |
* <p> If the <tt>'('</tt> or <tt>','</tt> flags are given, then a {@link
|
|
|
1303 |
* FormatFlagsConversionMismatchException} will be thrown.
|
|
|
1304 |
*
|
|
|
1305 |
* <tr><td valign="top"> <tt>'A'</tt>
|
|
|
1306 |
* <td valign="top"> <tt>'\u0041'</tt>
|
|
|
1307 |
* <td> The upper-case variant of <tt>'a'</tt>. The entire string
|
|
|
1308 |
* representing the number will be converted to upper case including the
|
|
|
1309 |
* <tt>'x'</tt> (<tt>'\u0078'</tt>) and <tt>'p'</tt>
|
|
|
1310 |
* (<tt>'\u0070'</tt> and all hexadecimal digits <tt>'a'</tt> -
|
|
|
1311 |
* <tt>'f'</tt> (<tt>'\u0061'</tt> - <tt>'\u0066'</tt>).
|
|
|
1312 |
*
|
|
|
1313 |
* </table>
|
|
|
1314 |
*
|
|
|
1315 |
* <p> All <a href="#intFlags">flags</a> defined for Byte, Short, Integer, and
|
|
|
1316 |
* Long apply.
|
|
|
1317 |
*
|
|
|
1318 |
* <p> If the <tt>'#'</tt> flag is given, then the decimal separator will
|
|
|
1319 |
* always be present.
|
|
|
1320 |
*
|
|
|
1321 |
* <p> If no <a name="floatdFlags">flags</a> are given the default formatting
|
|
|
1322 |
* is as follows:
|
|
|
1323 |
*
|
|
|
1324 |
* <ul>
|
|
|
1325 |
*
|
|
|
1326 |
* <li> The output is right-justified within the <tt>width</tt>
|
|
|
1327 |
*
|
|
|
1328 |
* <li> Negative numbers begin with a <tt>'-'</tt>
|
|
|
1329 |
*
|
|
|
1330 |
* <li> Positive numbers and positive zero do not include a sign or extra
|
|
|
1331 |
* leading space
|
|
|
1332 |
*
|
|
|
1333 |
* <li> No grouping separators are included
|
|
|
1334 |
*
|
|
|
1335 |
* <li> The decimal separator will only appear if a digit follows it
|
|
|
1336 |
*
|
|
|
1337 |
* </ul>
|
|
|
1338 |
*
|
|
|
1339 |
* <p> The <a name="floatDWidth">width</a> is the minimum number of characters
|
|
|
1340 |
* to be written to the output. This includes any signs, digits, grouping
|
|
|
1341 |
* separators, decimal separators, exponential symbol, radix indicator,
|
|
|
1342 |
* parentheses, and strings representing infinity and NaN as applicable. If
|
|
|
1343 |
* the length of the converted value is less than the width then the output
|
|
|
1344 |
* will be padded by spaces (<tt>'\u0020'</tt>) until the total number of
|
|
|
1345 |
* characters equals width. The padding is on the left by default. If the
|
|
|
1346 |
* <tt>'-'</tt> flag is given then the padding will be on the right. If width
|
|
|
1347 |
* is not specified then there is no minimum.
|
|
|
1348 |
*
|
|
|
1349 |
* <p> If the <a name="floatDPrec">conversion</a> is <tt>'e'</tt>,
|
|
|
1350 |
* <tt>'E'</tt> or <tt>'f'</tt>, then the precision is the number of digits
|
|
|
1351 |
* after the decimal separator. If the precision is not specified, then it is
|
|
|
1352 |
* assumed to be <tt>6</tt>.
|
|
|
1353 |
*
|
|
|
1354 |
* <p> If the conversion is <tt>'g'</tt> or <tt>'G'</tt>, then the precision is
|
|
|
1355 |
* the total number of significant digits in the resulting magnitude after
|
|
|
1356 |
* rounding. If the precision is not specified, then the default value is
|
|
|
1357 |
* <tt>6</tt>. If the precision is <tt>0</tt>, then it is taken to be
|
|
|
1358 |
* <tt>1</tt>.
|
|
|
1359 |
*
|
|
|
1360 |
* <p> If the conversion is <tt>'a'</tt> or <tt>'A'</tt>, then the precision
|
|
|
1361 |
* is the number of hexadecimal digits after the decimal separator. If the
|
|
|
1362 |
* precision is not provided, then all of the digits as returned by {@link
|
|
|
1363 |
* Double#toHexString(double)} will be output.
|
|
|
1364 |
*
|
|
|
1365 |
* <p><a name="dndec"><b> BigDecimal </b></a>
|
|
|
1366 |
*
|
|
|
1367 |
* <p> The following conversions may be applied {@link java.math.BigDecimal
|
|
|
1368 |
* BigDecimal}.
|
|
|
1369 |
*
|
|
|
1370 |
* <table cellpadding=5 summary="floatConv">
|
|
|
1371 |
*
|
|
|
1372 |
* <tr><td valign="top"> <tt>'e'</tt>
|
|
|
1373 |
* <td valign="top"> <tt>'\u0065'</tt>
|
|
|
1374 |
* <td> Requires the output to be formatted using <a
|
|
|
1375 |
* name="scientific">computerized scientific notation</a>. The <a
|
|
|
1376 |
* href="#l10n algorithm">localization algorithm</a> is applied.
|
|
|
1377 |
*
|
|
|
1378 |
* <p> The formatting of the magnitude <i>m</i> depends upon its value.
|
|
|
1379 |
*
|
|
|
1380 |
* <p> If <i>m</i> is positive-zero or negative-zero, then the exponent
|
|
|
1381 |
* will be <tt>"+00"</tt>.
|
|
|
1382 |
*
|
|
|
1383 |
* <p> Otherwise, the result is a string that represents the sign and
|
|
|
1384 |
* magnitude (absolute value) of the argument. The formatting of the sign
|
|
|
1385 |
* is described in the <a href="#l10n algorithm">localization
|
|
|
1386 |
* algorithm</a>. The formatting of the magnitude <i>m</i> depends upon its
|
|
|
1387 |
* value.
|
|
|
1388 |
*
|
|
|
1389 |
* <p> Let <i>n</i> be the unique integer such that 10<sup><i>n</i></sup>
|
|
|
1390 |
* <= <i>m</i> < 10<sup><i>n</i>+1</sup>; then let <i>a</i> be the
|
|
|
1391 |
* mathematically exact quotient of <i>m</i> and 10<sup><i>n</i></sup> so
|
|
|
1392 |
* that 1 <= <i>a</i> < 10. The magnitude is then represented as the
|
|
|
1393 |
* integer part of <i>a</i>, as a single decimal digit, followed by the
|
|
|
1394 |
* decimal separator followed by decimal digits representing the fractional
|
|
|
1395 |
* part of <i>a</i>, followed by the exponent symbol <tt>'e'</tt>
|
|
|
1396 |
* (<tt>'\u0065'</tt>), followed by the sign of the exponent, followed
|
|
|
1397 |
* by a representation of <i>n</i> as a decimal integer, as produced by the
|
|
|
1398 |
* method {@link Long#toString(long, int)}, and zero-padded to include at
|
|
|
1399 |
* least two digits.
|
|
|
1400 |
*
|
|
|
1401 |
* <p> The number of digits in the result for the fractional part of
|
|
|
1402 |
* <i>m</i> or <i>a</i> is equal to the precision. If the precision is not
|
|
|
1403 |
* specified then the default value is <tt>6</tt>. If the precision is
|
|
|
1404 |
* less than the number of digits which would appear after the decimal
|
|
|
1405 |
* point in the string returned by {@link Float#toString(float)} or {@link
|
|
|
1406 |
* Double#toString(double)} respectively, then the value will be rounded
|
|
|
1407 |
* using the {@linkplain java.math.BigDecimal#ROUND_HALF_UP round half up
|
|
|
1408 |
* algorithm}. Otherwise, zeros may be appended to reach the precision.
|
|
|
1409 |
* For a canonical representation of the value, use {@link
|
|
|
1410 |
* BigDecimal#toString()}.
|
|
|
1411 |
*
|
|
|
1412 |
* <p> If the <tt>','</tt> flag is given, then an {@link
|
|
|
1413 |
* FormatFlagsConversionMismatchException} will be thrown.
|
|
|
1414 |
*
|
|
|
1415 |
* <tr><td valign="top"> <tt>'E'</tt>
|
|
|
1416 |
* <td valign="top"> <tt>'\u0045'</tt>
|
|
|
1417 |
* <td> The upper-case variant of <tt>'e'</tt>. The exponent symbol
|
|
|
1418 |
* will be <tt>'E'</tt> (<tt>'\u0045'</tt>).
|
|
|
1419 |
*
|
|
|
1420 |
* <tr><td valign="top"> <tt>'g'</tt>
|
|
|
1421 |
* <td valign="top"> <tt>'\u0067'</tt>
|
|
|
1422 |
* <td> Requires the output to be formatted in general scientific notation
|
|
|
1423 |
* as described below. The <a href="#l10n algorithm">localization
|
|
|
1424 |
* algorithm</a> is applied.
|
|
|
1425 |
*
|
|
|
1426 |
* <p> After rounding for the precision, the formatting of the resulting
|
|
|
1427 |
* magnitude <i>m</i> depends on its value.
|
|
|
1428 |
*
|
|
|
1429 |
* <p> If <i>m</i> is greater than or equal to 10<sup>-4</sup> but less
|
|
|
1430 |
* than 10<sup>precision</sup> then it is represented in <i><a
|
|
|
1431 |
* href="#decimal">decimal format</a></i>.
|
|
|
1432 |
*
|
|
|
1433 |
* <p> If <i>m</i> is less than 10<sup>-4</sup> or greater than or equal to
|
|
|
1434 |
* 10<sup>precision</sup>, then it is represented in <i><a
|
|
|
1435 |
* href="#scientific">computerized scientific notation</a></i>.
|
|
|
1436 |
*
|
|
|
1437 |
* <p> The total number of significant digits in <i>m</i> is equal to the
|
|
|
1438 |
* precision. If the precision is not specified, then the default value is
|
|
|
1439 |
* <tt>6</tt>. If the precision is <tt>0</tt>, then it is taken to be
|
|
|
1440 |
* <tt>1</tt>.
|
|
|
1441 |
*
|
|
|
1442 |
* <p> If the <tt>'#'</tt> flag is given then an {@link
|
|
|
1443 |
* FormatFlagsConversionMismatchException} will be thrown.
|
|
|
1444 |
*
|
|
|
1445 |
* <tr><td valign="top"> <tt>'G'</tt>
|
|
|
1446 |
* <td valign="top"> <tt>'\u0047'</tt>
|
|
|
1447 |
* <td> The upper-case variant of <tt>'g'</tt>.
|
|
|
1448 |
*
|
|
|
1449 |
* <tr><td valign="top"> <tt>'f'</tt>
|
|
|
1450 |
* <td valign="top"> <tt>'\u0066'</tt>
|
|
|
1451 |
* <td> Requires the output to be formatted using <a name="decimal">decimal
|
|
|
1452 |
* format</a>. The <a href="#l10n algorithm">localization algorithm</a> is
|
|
|
1453 |
* applied.
|
|
|
1454 |
*
|
|
|
1455 |
* <p> The result is a string that represents the sign and magnitude
|
|
|
1456 |
* (absolute value) of the argument. The formatting of the sign is
|
|
|
1457 |
* described in the <a href="#l10n algorithm">localization
|
|
|
1458 |
* algorithm</a>. The formatting of the magnitude <i>m</i> depends upon its
|
|
|
1459 |
* value.
|
|
|
1460 |
*
|
|
|
1461 |
* <p> The magnitude is formatted as the integer part of <i>m</i>, with no
|
|
|
1462 |
* leading zeroes, followed by the decimal separator followed by one or
|
|
|
1463 |
* more decimal digits representing the fractional part of <i>m</i>.
|
|
|
1464 |
*
|
|
|
1465 |
* <p> The number of digits in the result for the fractional part of
|
|
|
1466 |
* <i>m</i> or <i>a</i> is equal to the precision. If the precision is not
|
|
|
1467 |
* specified then the default value is <tt>6</tt>. If the precision is
|
|
|
1468 |
* less than the number of digits which would appear after the decimal
|
|
|
1469 |
* point in the string returned by {@link Float#toString(float)} or {@link
|
|
|
1470 |
* Double#toString(double)} respectively, then the value will be rounded
|
|
|
1471 |
* using the {@linkplain java.math.BigDecimal#ROUND_HALF_UP round half up
|
|
|
1472 |
* algorithm}. Otherwise, zeros may be appended to reach the precision.
|
|
|
1473 |
* For a canonical representation of the value, use {@link
|
|
|
1474 |
* BigDecimal#toString()}.
|
|
|
1475 |
*
|
|
|
1476 |
* </table>
|
|
|
1477 |
*
|
|
|
1478 |
* <p> All <a href="#intFlags">flags</a> defined for Byte, Short, Integer, and
|
|
|
1479 |
* Long apply.
|
|
|
1480 |
*
|
|
|
1481 |
* <p> If the <tt>'#'</tt> flag is given, then the decimal separator will
|
|
|
1482 |
* always be present.
|
|
|
1483 |
*
|
|
|
1484 |
* <p> The <a href="#floatdFlags">default behavior</a> when no flags are
|
|
|
1485 |
* given is the same as for Float and Double.
|
|
|
1486 |
*
|
|
|
1487 |
* <p> The specification of <a href="#floatDWidth">width</a> and <a
|
|
|
1488 |
* href="#floatDPrec">precision</a> is the same as defined for Float and
|
|
|
1489 |
* Double.
|
|
|
1490 |
*
|
|
|
1491 |
* <h4><a name="ddt">Date/Time</a></h4>
|
|
|
1492 |
*
|
|
|
1493 |
* <p> This conversion may be applied to <tt>long</tt>, {@link Long}, {@link
|
|
|
1494 |
* Calendar}, and {@link Date}.
|
|
|
1495 |
*
|
|
|
1496 |
* <table cellpadding=5 summary="DTConv">
|
|
|
1497 |
*
|
|
|
1498 |
* <tr><td valign="top"> <tt>'t'</tt>
|
|
|
1499 |
* <td valign="top"> <tt>'\u0074'</tt>
|
|
|
1500 |
* <td> Prefix for date and time conversion characters.
|
|
|
1501 |
* <tr><td valign="top"> <tt>'T'</tt>
|
|
|
1502 |
* <td valign="top"> <tt>'\u0054'</tt>
|
|
|
1503 |
* <td> The upper-case variant of <tt>'t'</tt>.
|
|
|
1504 |
*
|
|
|
1505 |
* </table>
|
|
|
1506 |
*
|
|
|
1507 |
* <p> The following date and time conversion character suffixes are defined
|
|
|
1508 |
* for the <tt>'t'</tt> and <tt>'T'</tt> conversions. The types are similar to
|
|
|
1509 |
* but not completely identical to those defined by GNU <tt>date</tt> and
|
|
|
1510 |
* POSIX <tt>strftime(3c)</tt>. Additional conversion types are provided to
|
|
|
1511 |
* access Java-specific functionality (e.g. <tt>'L'</tt> for milliseconds
|
|
|
1512 |
* within the second).
|
|
|
1513 |
*
|
|
|
1514 |
* <p> The following conversion characters are used for formatting times:
|
|
|
1515 |
*
|
|
|
1516 |
* <table cellpadding=5 summary="time">
|
|
|
1517 |
*
|
|
|
1518 |
* <tr><td valign="top"> <tt>'H'</tt>
|
|
|
1519 |
* <td valign="top"> <tt>'\u0048'</tt>
|
|
|
1520 |
* <td> Hour of the day for the 24-hour clock, formatted as two digits with
|
|
|
1521 |
* a leading zero as necessary i.e. <tt>00 - 23</tt>. <tt>00</tt>
|
|
|
1522 |
* corresponds to midnight.
|
|
|
1523 |
*
|
|
|
1524 |
* <tr><td valign="top"><tt>'I'</tt>
|
|
|
1525 |
* <td valign="top"> <tt>'\u0049'</tt>
|
|
|
1526 |
* <td> Hour for the 12-hour clock, formatted as two digits with a leading
|
|
|
1527 |
* zero as necessary, i.e. <tt>01 - 12</tt>. <tt>01</tt> corresponds to
|
|
|
1528 |
* one o'clock (either morning or afternoon).
|
|
|
1529 |
*
|
|
|
1530 |
* <tr><td valign="top"><tt>'k'</tt>
|
|
|
1531 |
* <td valign="top"> <tt>'\u006b'</tt>
|
|
|
1532 |
* <td> Hour of the day for the 24-hour clock, i.e. <tt>0 - 23</tt>.
|
|
|
1533 |
* <tt>0</tt> corresponds to midnight.
|
|
|
1534 |
*
|
|
|
1535 |
* <tr><td valign="top"><tt>'l'</tt>
|
|
|
1536 |
* <td valign="top"> <tt>'\u006c'</tt>
|
|
|
1537 |
* <td> Hour for the 12-hour clock, i.e. <tt>1 - 12</tt>. <tt>1</tt>
|
|
|
1538 |
* corresponds to one o'clock (either morning or afternoon).
|
|
|
1539 |
*
|
|
|
1540 |
* <tr><td valign="top"><tt>'M'</tt>
|
|
|
1541 |
* <td valign="top"> <tt>'\u004d'</tt>
|
|
|
1542 |
* <td> Minute within the hour formatted as two digits with a leading zero
|
|
|
1543 |
* as necessary, i.e. <tt>00 - 59</tt>.
|
|
|
1544 |
*
|
|
|
1545 |
* <tr><td valign="top"><tt>'S'</tt>
|
|
|
1546 |
* <td valign="top"> <tt>'\u0053'</tt>
|
|
|
1547 |
* <td> Seconds within the minute, formatted as two digits with a leading
|
|
|
1548 |
* zero as necessary, i.e. <tt>00 - 60</tt> ("<tt>60</tt>" is a special
|
|
|
1549 |
* value required to support leap seconds).
|
|
|
1550 |
*
|
|
|
1551 |
* <tr><td valign="top"><tt>'L'</tt>
|
|
|
1552 |
* <td valign="top"> <tt>'\u004c'</tt>
|
|
|
1553 |
* <td> Millisecond within the second formatted as three digits with
|
|
|
1554 |
* leading zeros as necessary, i.e. <tt>000 - 999</tt>.
|
|
|
1555 |
*
|
|
|
1556 |
* <tr><td valign="top"><tt>'N'</tt>
|
|
|
1557 |
* <td valign="top"> <tt>'\u004e'</tt>
|
|
|
1558 |
* <td> Nanosecond within the second, formatted as nine digits with leading
|
|
|
1559 |
* zeros as necessary, i.e. <tt>000000000 - 999999999</tt>. The precision
|
|
|
1560 |
* of this value is limited by the resolution of the underlying operating
|
|
|
1561 |
* system or hardware.
|
|
|
1562 |
*
|
|
|
1563 |
* <tr><td valign="top"><tt>'p'</tt>
|
|
|
1564 |
* <td valign="top"> <tt>'\u0070'</tt>
|
|
|
1565 |
* <td> Locale-specific {@linkplain
|
|
|
1566 |
* java.text.DateFormatSymbols#getAmPmStrings morning or afternoon} marker
|
|
|
1567 |
* in lower case, e.g."<tt>am</tt>" or "<tt>pm</tt>". Use of the
|
|
|
1568 |
* conversion prefix <tt>'T'</tt> forces this output to upper case. (Note
|
|
|
1569 |
* that <tt>'p'</tt> produces lower-case output. This is different from
|
|
|
1570 |
* GNU <tt>date</tt> and POSIX <tt>strftime(3c)</tt> which produce
|
|
|
1571 |
* upper-case output.)
|
|
|
1572 |
*
|
|
|
1573 |
* <tr><td valign="top"><tt>'z'</tt>
|
|
|
1574 |
* <td valign="top"> <tt>'\u007a'</tt>
|
|
|
1575 |
* <td> <a href="http://www.ietf.org/rfc/rfc0822.txt">RFC 822</a>
|
|
|
1576 |
* style numeric time zone offset from GMT, e.g. <tt>-0800</tt>. This
|
|
|
1577 |
* value will be adjusted as necessary for Daylight Saving Time. For
|
|
|
1578 |
* <tt>long</tt>, {@link Long}, and {@link Date} the time zone used is
|
|
|
1579 |
* the {@plainlink TimeZone#getDefault() default time zone} for this
|
|
|
1580 |
* instance of the Java virtual machine.
|
|
|
1581 |
*
|
|
|
1582 |
* <tr><td valign="top"><tt>'Z'</tt>
|
|
|
1583 |
* <td> A string representing the abbreviation for the time zone. This
|
|
|
1584 |
* value will be adjusted as necessary for Daylight Saving Time. For
|
|
|
1585 |
* <tt>long</tt>, {@link Long}, and {@link Date} the time zone used is
|
|
|
1586 |
* the {@plainlink TimeZone#getDefault() default time zone} for this
|
|
|
1587 |
* instance of the Java virtual machine. The Formatter's locale will
|
|
|
1588 |
* supersede the locale of the argument (if any).
|
|
|
1589 |
*
|
|
|
1590 |
* <tr><td valign="top"><tt>'s'</tt>
|
|
|
1591 |
* <td valign="top"> <tt>'\u0073'</tt>
|
|
|
1592 |
* <td> Seconds since the beginning of the epoch starting at 1 January 1970
|
|
|
1593 |
* <tt>00:00:00</tt> UTC, i.e. <tt>Long.MIN_VALUE/1000</tt> to
|
|
|
1594 |
* <tt>Long.MAX_VALUE/1000</tt>.
|
|
|
1595 |
*
|
|
|
1596 |
* <tr><td valign="top"><tt>'Q'</tt>
|
|
|
1597 |
* <td valign="top"> <tt>'\u004f'</tt>
|
|
|
1598 |
* <td> Milliseconds since the beginning of the epoch starting at 1 January
|
|
|
1599 |
* 1970 <tt>00:00:00</tt> UTC, i.e. <tt>Long.MIN_VALUE</tt> to
|
|
|
1600 |
* <tt>Long.MAX_VALUE</tt>. The precision of this value is limited by
|
|
|
1601 |
* the resolution of the underlying operating system or hardware.
|
|
|
1602 |
*
|
|
|
1603 |
* </table>
|
|
|
1604 |
*
|
|
|
1605 |
* <p> The following conversion characters are used for formatting dates:
|
|
|
1606 |
*
|
|
|
1607 |
* <table cellpadding=5 summary="date">
|
|
|
1608 |
*
|
|
|
1609 |
* <tr><td valign="top"><tt>'B'</tt>
|
|
|
1610 |
* <td valign="top"> <tt>'\u0042'</tt>
|
|
|
1611 |
* <td> Locale-specific {@linkplain java.text.DateFormatSymbols#getMonths
|
|
|
1612 |
* full month name}, e.g. <tt>"January"</tt>, <tt>"February"</tt>.
|
|
|
1613 |
*
|
|
|
1614 |
* <tr><td valign="top"><tt>'b'</tt>
|
|
|
1615 |
* <td valign="top"> <tt>'\u0062'</tt>
|
|
|
1616 |
* <td> Locale-specific {@linkplain
|
|
|
1617 |
* java.text.DateFormatSymbols#getShortMonths abbreviated month name},
|
|
|
1618 |
* e.g. <tt>"Jan"</tt>, <tt>"Feb"</tt>.
|
|
|
1619 |
*
|
|
|
1620 |
* <tr><td valign="top"><tt>'h'</tt>
|
|
|
1621 |
* <td valign="top"> <tt>'\u0068'</tt>
|
|
|
1622 |
* <td> Same as <tt>'b'</tt>.
|
|
|
1623 |
*
|
|
|
1624 |
* <tr><td valign="top"><tt>'A'</tt>
|
|
|
1625 |
* <td valign="top"> <tt>'\u0041'</tt>
|
|
|
1626 |
* <td> Locale-specific full name of the {@linkplain
|
|
|
1627 |
* java.text.DateFormatSymbols#getWeekdays day of the week},
|
|
|
1628 |
* e.g. <tt>"Sunday"</tt>, <tt>"Monday"</tt>
|
|
|
1629 |
*
|
|
|
1630 |
* <tr><td valign="top"><tt>'a'</tt>
|
|
|
1631 |
* <td valign="top"> <tt>'\u0061'</tt>
|
|
|
1632 |
* <td> Locale-specific short name of the {@linkplain
|
|
|
1633 |
* java.text.DateFormatSymbols#getShortWeekdays day of the week},
|
|
|
1634 |
* e.g. <tt>"Sun"</tt>, <tt>"Mon"</tt>
|
|
|
1635 |
*
|
|
|
1636 |
* <tr><td valign="top"><tt>'C'</tt>
|
|
|
1637 |
* <td valign="top"> <tt>'\u0043'</tt>
|
|
|
1638 |
* <td> Four-digit year divided by <tt>100</tt>, formatted as two digits
|
|
|
1639 |
* with leading zero as necessary, i.e. <tt>00 - 99</tt>
|
|
|
1640 |
*
|
|
|
1641 |
* <tr><td valign="top"><tt>'Y'</tt>
|
|
|
1642 |
* <td valign="top"> <tt>'\u0059'</tt> <td> Year, formatted to at least
|
|
|
1643 |
* four digits with leading zeros as necessary, e.g. <tt>0092</tt> equals
|
|
|
1644 |
* <tt>92</tt> CE for the Gregorian calendar.
|
|
|
1645 |
*
|
|
|
1646 |
* <tr><td valign="top"><tt>'y'</tt>
|
|
|
1647 |
* <td valign="top"> <tt>'\u0079'</tt>
|
|
|
1648 |
* <td> Last two digits of the year, formatted with leading zeros as
|
|
|
1649 |
* necessary, i.e. <tt>00 - 99</tt>.
|
|
|
1650 |
*
|
|
|
1651 |
* <tr><td valign="top"><tt>'j'</tt>
|
|
|
1652 |
* <td valign="top"> <tt>'\u006a'</tt>
|
|
|
1653 |
* <td> Day of year, formatted as three digits with leading zeros as
|
|
|
1654 |
* necessary, e.g. <tt>001 - 366</tt> for the Gregorian calendar.
|
|
|
1655 |
* <tt>001</tt> corresponds to the first day of the year.
|
|
|
1656 |
*
|
|
|
1657 |
* <tr><td valign="top"><tt>'m'</tt>
|
|
|
1658 |
* <td valign="top"> <tt>'\u006d'</tt>
|
|
|
1659 |
* <td> Month, formatted as two digits with leading zeros as necessary,
|
|
|
1660 |
* i.e. <tt>01 - 13</tt>, where "<tt>01</tt>" is the first month of the
|
|
|
1661 |
* year and ("<tt>13</tt>" is a special value required to support lunar
|
|
|
1662 |
* calendars).
|
|
|
1663 |
*
|
|
|
1664 |
* <tr><td valign="top"><tt>'d'</tt>
|
|
|
1665 |
* <td valign="top"> <tt>'\u0064'</tt>
|
|
|
1666 |
* <td> Day of month, formatted as two digits with leading zeros as
|
|
|
1667 |
* necessary, i.e. <tt>01 - 31</tt>, where "<tt>01</tt>" is the first day
|
|
|
1668 |
* of the month.
|
|
|
1669 |
*
|
|
|
1670 |
* <tr><td valign="top"><tt>'e'</tt>
|
|
|
1671 |
* <td valign="top"> <tt>'\u0065'</tt>
|
|
|
1672 |
* <td> Day of month, formatted as two digits, i.e. <tt>1 - 31</tt> where
|
|
|
1673 |
* "<tt>1</tt>" is the first day of the month.
|
|
|
1674 |
*
|
|
|
1675 |
* </table>
|
|
|
1676 |
*
|
|
|
1677 |
* <p> The following conversion characters are used for formatting common
|
|
|
1678 |
* date/time compositions.
|
|
|
1679 |
*
|
|
|
1680 |
* <table cellpadding=5 summary="composites">
|
|
|
1681 |
*
|
|
|
1682 |
* <tr><td valign="top"><tt>'R'</tt>
|
|
|
1683 |
* <td valign="top"> <tt>'\u0052'</tt>
|
|
|
1684 |
* <td> Time formatted for the 24-hour clock as <tt>"%tH:%tM"</tt>
|
|
|
1685 |
*
|
|
|
1686 |
* <tr><td valign="top"><tt>'T'</tt>
|
|
|
1687 |
* <td valign="top"> <tt>'\u0054'</tt>
|
|
|
1688 |
* <td> Time formatted for the 24-hour clock as <tt>"%tH:%tM:%tS"</tt>.
|
|
|
1689 |
*
|
|
|
1690 |
* <tr><td valign="top"><tt>'r'</tt>
|
|
|
1691 |
* <td valign="top"> <tt>'\u0072'</tt>
|
|
|
1692 |
* <td> Time formatted for the 12-hour clock as <tt>"%tI:%tM:%tS
|
|
|
1693 |
* %Tp"</tt>. The location of the morning or afternoon marker
|
|
|
1694 |
* (<tt>'%Tp'</tt>) may be locale-dependent.
|
|
|
1695 |
*
|
|
|
1696 |
* <tr><td valign="top"><tt>'D'</tt>
|
|
|
1697 |
* <td valign="top"> <tt>'\u0044'</tt>
|
|
|
1698 |
* <td> Date formatted as <tt>"%tm/%td/%ty"</tt>.
|
|
|
1699 |
*
|
|
|
1700 |
* <tr><td valign="top"><tt>'F'</tt>
|
|
|
1701 |
* <td valign="top"> <tt>'\u0046'</tt>
|
|
|
1702 |
* <td> <a href="http://www.w3.org/TR/NOTE-datetime">ISO 8601</a>
|
|
|
1703 |
* complete date formatted as <tt>"%tY-%tm-%td"</tt>.
|
|
|
1704 |
*
|
|
|
1705 |
* <tr><td valign="top"><tt>'c'</tt>
|
|
|
1706 |
* <td valign="top"> <tt>'\u0063'</tt>
|
|
|
1707 |
* <td> Date and time formatted as <tt>"%ta %tb %td %tT %tZ %tY"</tt>,
|
|
|
1708 |
* e.g. <tt>"Sun Jul 20 16:17:00 EDT 1969"</tt>.
|
|
|
1709 |
*
|
|
|
1710 |
* </table>
|
|
|
1711 |
*
|
|
|
1712 |
* <p> The <tt>'-'</tt> flag defined for <a href="#dFlags">General
|
|
|
1713 |
* conversions</a> applies. If the <tt>'#'</tt> flag is given, then a {@link
|
|
|
1714 |
* FormatFlagsConversionMismatchException} will be thrown.
|
|
|
1715 |
*
|
|
|
1716 |
* <p> The <a name="dtWidth">width</a> is the minimum number of characters to
|
|
|
1717 |
* be written to the output. If the length of the converted value is less than
|
|
|
1718 |
* the <tt>width</tt> then the output will be padded by spaces
|
|
|
1719 |
* (<tt>'\u0020'</tt>) until the total number of characters equals width.
|
|
|
1720 |
* The padding is on the left by default. If the <tt>'-'</tt> flag is given
|
|
|
1721 |
* then the padding will be on the right. If width is not specified then there
|
|
|
1722 |
* is no minimum.
|
|
|
1723 |
*
|
|
|
1724 |
* <p> The precision is not applicable. If the precision is specified then an
|
|
|
1725 |
* {@link IllegalFormatPrecisionException} will be thrown.
|
|
|
1726 |
*
|
|
|
1727 |
* <h4><a name="dper">Percent</a></h4>
|
|
|
1728 |
*
|
|
|
1729 |
* <p> The conversion does not correspond to any argument.
|
|
|
1730 |
*
|
|
|
1731 |
* <table cellpadding=5 summary="DTConv">
|
|
|
1732 |
*
|
|
|
1733 |
* <tr><td valign="top"><tt>'%'</tt>
|
|
|
1734 |
* <td> The result is a literal <tt>'%'</tt> (<tt>'\u0025'</tt>)
|
|
|
1735 |
*
|
|
|
1736 |
* <p> The <a name="dtWidth">width</a> is the minimum number of characters to
|
|
|
1737 |
* be written to the output including the <tt>'%'</tt>. If the length of the
|
|
|
1738 |
* converted value is less than the <tt>width</tt> then the output will be
|
|
|
1739 |
* padded by spaces (<tt>'\u0020'</tt>) until the total number of
|
|
|
1740 |
* characters equals width. The padding is on the left. If width is not
|
|
|
1741 |
* specified then just the <tt>'%'</tt> is output.
|
|
|
1742 |
*
|
|
|
1743 |
* <p> The <tt>'-'</tt> flag defined for <a href="#dFlags">General
|
|
|
1744 |
* conversions</a> applies. If any other flags are provided, then a
|
|
|
1745 |
* {@link FormatFlagsConversionMismatchException} will be thrown.
|
|
|
1746 |
*
|
|
|
1747 |
* <p> The precision is not applicable. If the precision is specified an
|
|
|
1748 |
* {@link IllegalFormatPrecisionException} will be thrown.
|
|
|
1749 |
*
|
|
|
1750 |
* </table>
|
|
|
1751 |
*
|
|
|
1752 |
* <h4><a name="dls">Line Separator</a></h4>
|
|
|
1753 |
*
|
|
|
1754 |
* <p> The conversion does not correspond to any argument.
|
|
|
1755 |
*
|
|
|
1756 |
* <table cellpadding=5 summary="DTConv">
|
|
|
1757 |
*
|
|
|
1758 |
* <tr><td valign="top"><tt>'n'</tt>
|
|
|
1759 |
* <td> the platform-specific line separator as returned by {@link
|
|
|
1760 |
* System#getProperty System.getProperty("line.separator")}.
|
|
|
1761 |
*
|
|
|
1762 |
* </table>
|
|
|
1763 |
*
|
|
|
1764 |
* <p> Flags, width, and precision are not applicable. If any are provided an
|
|
|
1765 |
* {@link IllegalFormatFlagsException}, {@link IllegalFormatWidthException},
|
|
|
1766 |
* and {@link IllegalFormatPrecisionException}, respectively will be thrown.
|
|
|
1767 |
*
|
|
|
1768 |
* <h4><a name="dpos">Argument Index</a></h4>
|
|
|
1769 |
*
|
|
|
1770 |
* <p> Format specifiers can reference arguments in three ways:
|
|
|
1771 |
*
|
|
|
1772 |
* <ul>
|
|
|
1773 |
*
|
|
|
1774 |
* <li> <i>Explicit indexing</i> is used when the format specifier contains an
|
|
|
1775 |
* argument index. The argument index is a decimal integer indicating the
|
|
|
1776 |
* position of the argument in the argument list. The first argument is
|
|
|
1777 |
* referenced by "<tt>1$</tt>", the second by "<tt>2$</tt>", etc. An argument
|
|
|
1778 |
* may be referenced more than once.
|
|
|
1779 |
*
|
|
|
1780 |
* <p> For example:
|
|
|
1781 |
*
|
|
|
1782 |
* <blockquote><pre>
|
|
|
1783 |
* formatter.format("%4$s %3$s %2$s %1$s %4$s %3$s %2$s %1$s",
|
|
|
1784 |
* "a", "b", "c", "d")
|
|
|
1785 |
* // -> "d c b a d c b a"
|
|
|
1786 |
* </pre></blockquote>
|
|
|
1787 |
*
|
|
|
1788 |
* <li> <i>Relative indexing</i> is used when the format specifier contains a
|
|
|
1789 |
* <tt>'<'</tt> (<tt>'\u003c'</tt>) flag which causes the argument for
|
|
|
1790 |
* the previous format specifier to be re-used. If there is no previous
|
|
|
1791 |
* argument, then a {@link MissingFormatArgumentException} is thrown.
|
|
|
1792 |
*
|
|
|
1793 |
* <blockquote><pre>
|
|
|
1794 |
* formatter.format("%s %s %<s %<s", "a", "b", "c", "d")
|
|
|
1795 |
* // -> "a b b b"
|
|
|
1796 |
* // "c" and "d" are ignored because they are not referenced
|
|
|
1797 |
* </pre></blockquote>
|
|
|
1798 |
*
|
|
|
1799 |
* <li> <i>Ordinary indexing</i> is used when the format specifier contains
|
|
|
1800 |
* neither an argument index nor a <tt>'<'</tt> flag. Each format specifier
|
|
|
1801 |
* which uses ordinary indexing is assigned a sequential implicit index into
|
|
|
1802 |
* argument list which is independent of the indices used by explicit or
|
|
|
1803 |
* relative indexing.
|
|
|
1804 |
*
|
|
|
1805 |
* <blockquote><pre>
|
|
|
1806 |
* formatter.format("%s %s %s %s", "a", "b", "c", "d")
|
|
|
1807 |
* // -> "a b c d"
|
|
|
1808 |
* </pre></blockquote>
|
|
|
1809 |
*
|
|
|
1810 |
* </ul>
|
|
|
1811 |
*
|
|
|
1812 |
* <p> It is possible to have a format string which uses all forms of indexing,
|
|
|
1813 |
* for example:
|
|
|
1814 |
*
|
|
|
1815 |
* <blockquote><pre>
|
|
|
1816 |
* formatter.format("%2$s %s %<s %s", "a", "b", "c", "d")
|
|
|
1817 |
* // -> "b a a b"
|
|
|
1818 |
* // "c" and "d" are ignored because they are not referenced
|
|
|
1819 |
* </pre></blockquote>
|
|
|
1820 |
*
|
|
|
1821 |
* <p> The maximum number of arguments is limited by the maximum dimension of a
|
|
|
1822 |
* Java array as defined by the <a
|
|
|
1823 |
* href="http://java.sun.com/docs/books/vmspec/">Java Virtual Machine
|
|
|
1824 |
* Specification</a>. If the argument index is does not correspond to an
|
|
|
1825 |
* available argument, then a {@link MissingFormatArgumentException} is thrown.
|
|
|
1826 |
*
|
|
|
1827 |
* <p> If there are more arguments than format specifiers, the extra arguments
|
|
|
1828 |
* are ignored.
|
|
|
1829 |
*
|
|
|
1830 |
* <p> Unless otherwise specified, passing a <tt>null</tt> argument to any
|
|
|
1831 |
* method or constructor in this class will cause a {@link
|
|
|
1832 |
* NullPointerException} to be thrown.
|
|
|
1833 |
*
|
|
|
1834 |
* @author Iris Clark
|
|
|
1835 |
* @since 1.5
|
|
|
1836 |
*/
|
|
|
1837 |
public final class Formatter implements Closeable, Flushable {
|
|
|
1838 |
private Appendable a;
|
|
|
1839 |
private Locale l;
|
|
|
1840 |
|
|
|
1841 |
private IOException lastException;
|
|
|
1842 |
|
|
|
1843 |
private char zero = '0';
|
|
|
1844 |
private static double scaleUp;
|
|
|
1845 |
|
|
|
1846 |
// 1 (sign) + 19 (max # sig digits) + 1 ('.') + 1 ('e') + 1 (sign)
|
|
|
1847 |
// + 3 (max # exp digits) + 4 (error) = 30
|
|
|
1848 |
private static final int MAX_FD_CHARS = 30;
|
|
|
1849 |
|
|
|
1850 |
// Initialize internal data.
|
|
|
1851 |
private void init(Appendable a, Locale l) {
|
|
|
1852 |
this.a = a;
|
|
|
1853 |
this.l = l;
|
|
|
1854 |
setZero();
|
|
|
1855 |
}
|
|
|
1856 |
|
|
|
1857 |
/**
|
|
|
1858 |
* Constructs a new formatter.
|
|
|
1859 |
*
|
|
|
1860 |
* <p> The destination of the formatted output is a {@link StringBuilder}
|
|
|
1861 |
* which may be retrieved by invoking {@link #out out()} and whose
|
|
|
1862 |
* current content may be converted into a string by invoking {@link
|
|
|
1863 |
* #toString toString()}. The locale used is the {@linkplain
|
|
|
1864 |
* Locale#getDefault() default locale} for this instance of the Java
|
|
|
1865 |
* virtual machine.
|
|
|
1866 |
*/
|
|
|
1867 |
public Formatter() {
|
|
|
1868 |
init(new StringBuilder(), Locale.getDefault());
|
|
|
1869 |
}
|
|
|
1870 |
|
|
|
1871 |
/**
|
|
|
1872 |
* Constructs a new formatter with the specified destination.
|
|
|
1873 |
*
|
|
|
1874 |
* <p> The locale used is the {@linkplain Locale#getDefault() default
|
|
|
1875 |
* locale} for this instance of the Java virtual machine.
|
|
|
1876 |
*
|
|
|
1877 |
* @param a
|
|
|
1878 |
* Destination for the formatted output. If <tt>a</tt> is
|
|
|
1879 |
* <tt>null</tt> then a {@link StringBuilder} will be created.
|
|
|
1880 |
*/
|
|
|
1881 |
public Formatter(Appendable a) {
|
|
|
1882 |
if (a == null)
|
|
|
1883 |
a = new StringBuilder();
|
|
|
1884 |
init(a, Locale.getDefault());
|
|
|
1885 |
}
|
|
|
1886 |
|
|
|
1887 |
/**
|
|
|
1888 |
* Constructs a new formatter with the specified locale.
|
|
|
1889 |
*
|
|
|
1890 |
* <p> The destination of the formatted output is a {@link StringBuilder}
|
|
|
1891 |
* which may be retrieved by invoking {@link #out out()} and whose current
|
|
|
1892 |
* content may be converted into a string by invoking {@link #toString
|
|
|
1893 |
* toString()}.
|
|
|
1894 |
*
|
|
|
1895 |
* @param l
|
|
|
1896 |
* The {@linkplain java.util.Locale locale} to apply during
|
|
|
1897 |
* formatting. If <tt>l</tt> is <tt>null</tt> then no localization
|
|
|
1898 |
* is applied.
|
|
|
1899 |
*/
|
|
|
1900 |
public Formatter(Locale l) {
|
|
|
1901 |
init(new StringBuilder(), l);
|
|
|
1902 |
}
|
|
|
1903 |
|
|
|
1904 |
/**
|
|
|
1905 |
* Constructs a new formatter with the specified destination and locale.
|
|
|
1906 |
*
|
|
|
1907 |
* @param a
|
|
|
1908 |
* Destination for the formatted output. If <tt>a</tt> is
|
|
|
1909 |
* <tt>null</tt> then a {@link StringBuilder} will be created.
|
|
|
1910 |
*
|
|
|
1911 |
* @param l
|
|
|
1912 |
* The {@linkplain java.util.Locale locale} to apply during
|
|
|
1913 |
* formatting. If <tt>l</tt> is <tt>null</tt> then no localization
|
|
|
1914 |
* is applied.
|
|
|
1915 |
*/
|
|
|
1916 |
public Formatter(Appendable a, Locale l) {
|
|
|
1917 |
if (a == null)
|
|
|
1918 |
a = new StringBuilder();
|
|
|
1919 |
init(a, l);
|
|
|
1920 |
}
|
|
|
1921 |
|
|
|
1922 |
/**
|
|
|
1923 |
* Constructs a new formatter with the specified file name.
|
|
|
1924 |
*
|
|
|
1925 |
* <p> The charset used is the {@linkplain
|
|
|
1926 |
* java.nio.charset.Charset#defaultCharset() default charset} for this
|
|
|
1927 |
* instance of the Java virtual machine.
|
|
|
1928 |
*
|
|
|
1929 |
* <p> The locale used is the {@linkplain Locale#getDefault() default
|
|
|
1930 |
* locale} for this instance of the Java virtual machine.
|
|
|
1931 |
*
|
|
|
1932 |
* @param fileName
|
|
|
1933 |
* The name of the file to use as the destination of this
|
|
|
1934 |
* formatter. If the file exists then it will be truncated to
|
|
|
1935 |
* zero size; otherwise, a new file will be created. The output
|
|
|
1936 |
* will be written to the file and is buffered.
|
|
|
1937 |
*
|
|
|
1938 |
* @throws SecurityException
|
|
|
1939 |
* If a security manager is present and {@link
|
|
|
1940 |
* SecurityManager#checkWrite checkWrite(fileName)} denies write
|
|
|
1941 |
* access to the file
|
|
|
1942 |
*
|
|
|
1943 |
* @throws FileNotFoundException
|
|
|
1944 |
* If the given file name does not denote an existing, writable
|
|
|
1945 |
* regular file and a new regular file of that name cannot be
|
|
|
1946 |
* created, or if some other error occurs while opening or
|
|
|
1947 |
* creating the file
|
|
|
1948 |
*/
|
|
|
1949 |
public Formatter(String fileName) throws FileNotFoundException {
|
|
|
1950 |
init(new BufferedWriter(new OutputStreamWriter(new FileOutputStream(fileName))),
|
|
|
1951 |
Locale.getDefault());
|
|
|
1952 |
}
|
|
|
1953 |
|
|
|
1954 |
/**
|
|
|
1955 |
* Constructs a new formatter with the specified file name and charset.
|
|
|
1956 |
*
|
|
|
1957 |
* <p> The locale used is the {@linkplain Locale#getDefault default
|
|
|
1958 |
* locale} for this instance of the Java virtual machine.
|
|
|
1959 |
*
|
|
|
1960 |
* @param fileName
|
|
|
1961 |
* The name of the file to use as the destination of this
|
|
|
1962 |
* formatter. If the file exists then it will be truncated to
|
|
|
1963 |
* zero size; otherwise, a new file will be created. The output
|
|
|
1964 |
* will be written to the file and is buffered.
|
|
|
1965 |
*
|
|
|
1966 |
* @param csn
|
|
|
1967 |
* The name of a supported {@linkplain java.nio.charset.Charset
|
|
|
1968 |
* charset}
|
|
|
1969 |
*
|
|
|
1970 |
* @throws FileNotFoundException
|
|
|
1971 |
* If the given file name does not denote an existing, writable
|
|
|
1972 |
* regular file and a new regular file of that name cannot be
|
|
|
1973 |
* created, or if some other error occurs while opening or
|
|
|
1974 |
* creating the file
|
|
|
1975 |
*
|
|
|
1976 |
* @throws SecurityException
|
|
|
1977 |
* If a security manager is present and {@link
|
|
|
1978 |
* SecurityManager#checkWrite checkWrite(fileName)} denies write
|
|
|
1979 |
* access to the file
|
|
|
1980 |
*
|
|
|
1981 |
* @throws UnsupportedEncodingException
|
|
|
1982 |
* If the named charset is not supported
|
|
|
1983 |
*/
|
|
|
1984 |
public Formatter(String fileName, String csn)
|
|
|
1985 |
throws FileNotFoundException, UnsupportedEncodingException
|
|
|
1986 |
{
|
|
|
1987 |
this(fileName, csn, Locale.getDefault());
|
|
|
1988 |
}
|
|
|
1989 |
|
|
|
1990 |
/**
|
|
|
1991 |
* Constructs a new formatter with the specified file name, charset, and
|
|
|
1992 |
* locale.
|
|
|
1993 |
*
|
|
|
1994 |
* @param fileName
|
|
|
1995 |
* The name of the file to use as the destination of this
|
|
|
1996 |
* formatter. If the file exists then it will be truncated to
|
|
|
1997 |
* zero size; otherwise, a new file will be created. The output
|
|
|
1998 |
* will be written to the file and is buffered.
|
|
|
1999 |
*
|
|
|
2000 |
* @param csn
|
|
|
2001 |
* The name of a supported {@linkplain java.nio.charset.Charset
|
|
|
2002 |
* charset}
|
|
|
2003 |
*
|
|
|
2004 |
* @param l
|
|
|
2005 |
* The {@linkplain java.util.Locale locale} to apply during
|
|
|
2006 |
* formatting. If <tt>l</tt> is <tt>null</tt> then no localization
|
|
|
2007 |
* is applied.
|
|
|
2008 |
*
|
|
|
2009 |
* @throws FileNotFoundException
|
|
|
2010 |
* If the given file name does not denote an existing, writable
|
|
|
2011 |
* regular file and a new regular file of that name cannot be
|
|
|
2012 |
* created, or if some other error occurs while opening or
|
|
|
2013 |
* creating the file
|
|
|
2014 |
*
|
|
|
2015 |
* @throws SecurityException
|
|
|
2016 |
* If a security manager is present and {@link
|
|
|
2017 |
* SecurityManager#checkWrite checkWrite(fileName)} denies write
|
|
|
2018 |
* access to the file
|
|
|
2019 |
*
|
|
|
2020 |
* @throws UnsupportedEncodingException
|
|
|
2021 |
* If the named charset is not supported
|
|
|
2022 |
*/
|
|
|
2023 |
public Formatter(String fileName, String csn, Locale l)
|
|
|
2024 |
throws FileNotFoundException, UnsupportedEncodingException
|
|
|
2025 |
{
|
|
|
2026 |
init(new BufferedWriter(new OutputStreamWriter(new FileOutputStream(fileName), csn)),
|
|
|
2027 |
l);
|
|
|
2028 |
}
|
|
|
2029 |
|
|
|
2030 |
/**
|
|
|
2031 |
* Constructs a new formatter with the specified file.
|
|
|
2032 |
*
|
|
|
2033 |
* <p> The charset used is the {@linkplain
|
|
|
2034 |
* java.nio.charset.Charset#defaultCharset() default charset} for this
|
|
|
2035 |
* instance of the Java virtual machine.
|
|
|
2036 |
*
|
|
|
2037 |
* <p> The locale used is the {@linkplain Locale#getDefault() default
|
|
|
2038 |
* locale} for this instance of the Java virtual machine.
|
|
|
2039 |
*
|
|
|
2040 |
* @param file
|
|
|
2041 |
* The file to use as the destination of this formatter. If the
|
|
|
2042 |
* file exists then it will be truncated to zero size; otherwise,
|
|
|
2043 |
* a new file will be created. The output will be written to the
|
|
|
2044 |
* file and is buffered.
|
|
|
2045 |
*
|
|
|
2046 |
* @throws SecurityException
|
|
|
2047 |
* If a security manager is present and {@link
|
|
|
2048 |
* SecurityManager#checkWrite checkWrite(file.getPath())} denies
|
|
|
2049 |
* write access to the file
|
|
|
2050 |
*
|
|
|
2051 |
* @throws FileNotFoundException
|
|
|
2052 |
* If the given file object does not denote an existing, writable
|
|
|
2053 |
* regular file and a new regular file of that name cannot be
|
|
|
2054 |
* created, or if some other error occurs while opening or
|
|
|
2055 |
* creating the file
|
|
|
2056 |
*/
|
|
|
2057 |
public Formatter(File file) throws FileNotFoundException {
|
|
|
2058 |
init(new BufferedWriter(new OutputStreamWriter(new FileOutputStream(file))),
|
|
|
2059 |
Locale.getDefault());
|
|
|
2060 |
}
|
|
|
2061 |
|
|
|
2062 |
/**
|
|
|
2063 |
* Constructs a new formatter with the specified file and charset.
|
|
|
2064 |
*
|
|
|
2065 |
* <p> The locale used is the {@linkplain Locale#getDefault default
|
|
|
2066 |
* locale} for this instance of the Java virtual machine.
|
|
|
2067 |
*
|
|
|
2068 |
* @param file
|
|
|
2069 |
* The file to use as the destination of this formatter. If the
|
|
|
2070 |
* file exists then it will be truncated to zero size; otherwise,
|
|
|
2071 |
* a new file will be created. The output will be written to the
|
|
|
2072 |
* file and is buffered.
|
|
|
2073 |
*
|
|
|
2074 |
* @param csn
|
|
|
2075 |
* The name of a supported {@linkplain java.nio.charset.Charset
|
|
|
2076 |
* charset}
|
|
|
2077 |
*
|
|
|
2078 |
* @throws FileNotFoundException
|
|
|
2079 |
* If the given file object does not denote an existing, writable
|
|
|
2080 |
* regular file and a new regular file of that name cannot be
|
|
|
2081 |
* created, or if some other error occurs while opening or
|
|
|
2082 |
* creating the file
|
|
|
2083 |
*
|
|
|
2084 |
* @throws SecurityException
|
|
|
2085 |
* If a security manager is present and {@link
|
|
|
2086 |
* SecurityManager#checkWrite checkWrite(file.getPath())} denies
|
|
|
2087 |
* write access to the file
|
|
|
2088 |
*
|
|
|
2089 |
* @throws UnsupportedEncodingException
|
|
|
2090 |
* If the named charset is not supported
|
|
|
2091 |
*/
|
|
|
2092 |
public Formatter(File file, String csn)
|
|
|
2093 |
throws FileNotFoundException, UnsupportedEncodingException
|
|
|
2094 |
{
|
|
|
2095 |
this(file, csn, Locale.getDefault());
|
|
|
2096 |
}
|
|
|
2097 |
|
|
|
2098 |
/**
|
|
|
2099 |
* Constructs a new formatter with the specified file, charset, and
|
|
|
2100 |
* locale.
|
|
|
2101 |
*
|
|
|
2102 |
* @param file
|
|
|
2103 |
* The file to use as the destination of this formatter. If the
|
|
|
2104 |
* file exists then it will be truncated to zero size; otherwise,
|
|
|
2105 |
* a new file will be created. The output will be written to the
|
|
|
2106 |
* file and is buffered.
|
|
|
2107 |
*
|
|
|
2108 |
* @param csn
|
|
|
2109 |
* The name of a supported {@linkplain java.nio.charset.Charset
|
|
|
2110 |
* charset}
|
|
|
2111 |
*
|
|
|
2112 |
* @param l
|
|
|
2113 |
* The {@linkplain java.util.Locale locale} to apply during
|
|
|
2114 |
* formatting. If <tt>l</tt> is <tt>null</tt> then no localization
|
|
|
2115 |
* is applied.
|
|
|
2116 |
*
|
|
|
2117 |
* @throws FileNotFoundException
|
|
|
2118 |
* If the given file object does not denote an existing, writable
|
|
|
2119 |
* regular file and a new regular file of that name cannot be
|
|
|
2120 |
* created, or if some other error occurs while opening or
|
|
|
2121 |
* creating the file
|
|
|
2122 |
*
|
|
|
2123 |
* @throws SecurityException
|
|
|
2124 |
* If a security manager is present and {@link
|
|
|
2125 |
* SecurityManager#checkWrite checkWrite(file.getPath())} denies
|
|
|
2126 |
* write access to the file
|
|
|
2127 |
*
|
|
|
2128 |
* @throws UnsupportedEncodingException
|
|
|
2129 |
* If the named charset is not supported
|
|
|
2130 |
*/
|
|
|
2131 |
public Formatter(File file, String csn, Locale l)
|
|
|
2132 |
throws FileNotFoundException, UnsupportedEncodingException
|
|
|
2133 |
{
|
|
|
2134 |
init(new BufferedWriter(new OutputStreamWriter(new FileOutputStream(file), csn)),
|
|
|
2135 |
l);
|
|
|
2136 |
}
|
|
|
2137 |
|
|
|
2138 |
/**
|
|
|
2139 |
* Constructs a new formatter with the specified print stream.
|
|
|
2140 |
*
|
|
|
2141 |
* <p> The locale used is the {@linkplain Locale#getDefault() default
|
|
|
2142 |
* locale} for this instance of the Java virtual machine.
|
|
|
2143 |
*
|
|
|
2144 |
* <p> Characters are written to the given {@link java.io.PrintStream
|
|
|
2145 |
* PrintStream} object and are therefore encoded using that object's
|
|
|
2146 |
* charset.
|
|
|
2147 |
*
|
|
|
2148 |
* @param ps
|
|
|
2149 |
* The stream to use as the destination of this formatter.
|
|
|
2150 |
*/
|
|
|
2151 |
public Formatter(PrintStream ps) {
|
|
|
2152 |
if (ps == null)
|
|
|
2153 |
throw new NullPointerException();
|
|
|
2154 |
init((Appendable)ps, Locale.getDefault());
|
|
|
2155 |
}
|
|
|
2156 |
|
|
|
2157 |
/**
|
|
|
2158 |
* Constructs a new formatter with the specified output stream.
|
|
|
2159 |
*
|
|
|
2160 |
* <p> The charset used is the {@linkplain
|
|
|
2161 |
* java.nio.charset.Charset#defaultCharset() default charset} for this
|
|
|
2162 |
* instance of the Java virtual machine.
|
|
|
2163 |
*
|
|
|
2164 |
* <p> The locale used is the {@linkplain Locale#getDefault() default
|
|
|
2165 |
* locale} for this instance of the Java virtual machine.
|
|
|
2166 |
*
|
|
|
2167 |
* @param os
|
|
|
2168 |
* The output stream to use as the destination of this formatter.
|
|
|
2169 |
* The output will be buffered.
|
|
|
2170 |
*/
|
|
|
2171 |
public Formatter(OutputStream os) {
|
|
|
2172 |
init(new BufferedWriter(new OutputStreamWriter(os)),
|
|
|
2173 |
Locale.getDefault());
|
|
|
2174 |
}
|
|
|
2175 |
|
|
|
2176 |
/**
|
|
|
2177 |
* Constructs a new formatter with the specified output stream and
|
|
|
2178 |
* charset.
|
|
|
2179 |
*
|
|
|
2180 |
* <p> The locale used is the {@linkplain Locale#getDefault default
|
|
|
2181 |
* locale} for this instance of the Java virtual machine.
|
|
|
2182 |
*
|
|
|
2183 |
* @param os
|
|
|
2184 |
* The output stream to use as the destination of this formatter.
|
|
|
2185 |
* The output will be buffered.
|
|
|
2186 |
*
|
|
|
2187 |
* @param csn
|
|
|
2188 |
* The name of a supported {@linkplain java.nio.charset.Charset
|
|
|
2189 |
* charset}
|
|
|
2190 |
*
|
|
|
2191 |
* @throws UnsupportedEncodingException
|
|
|
2192 |
* If the named charset is not supported
|
|
|
2193 |
*/
|
|
|
2194 |
public Formatter(OutputStream os, String csn)
|
|
|
2195 |
throws UnsupportedEncodingException
|
|
|
2196 |
{
|
|
|
2197 |
this(os, csn, Locale.getDefault());
|
|
|
2198 |
}
|
|
|
2199 |
|
|
|
2200 |
/**
|
|
|
2201 |
* Constructs a new formatter with the specified output stream, charset,
|
|
|
2202 |
* and locale.
|
|
|
2203 |
*
|
|
|
2204 |
* @param os
|
|
|
2205 |
* The output stream to use as the destination of this formatter.
|
|
|
2206 |
* The output will be buffered.
|
|
|
2207 |
*
|
|
|
2208 |
* @param csn
|
|
|
2209 |
* The name of a supported {@linkplain java.nio.charset.Charset
|
|
|
2210 |
* charset}
|
|
|
2211 |
*
|
|
|
2212 |
* @param l
|
|
|
2213 |
* The {@linkplain java.util.Locale locale} to apply during
|
|
|
2214 |
* formatting. If <tt>l</tt> is <tt>null</tt> then no localization
|
|
|
2215 |
* is applied.
|
|
|
2216 |
*
|
|
|
2217 |
* @throws UnsupportedEncodingException
|
|
|
2218 |
* If the named charset is not supported
|
|
|
2219 |
*/
|
|
|
2220 |
public Formatter(OutputStream os, String csn, Locale l)
|
|
|
2221 |
throws UnsupportedEncodingException
|
|
|
2222 |
{
|
|
|
2223 |
init(new BufferedWriter(new OutputStreamWriter(os, csn)), l);
|
|
|
2224 |
}
|
|
|
2225 |
|
|
|
2226 |
private void setZero() {
|
|
|
2227 |
if ((l != null) && !l.equals(Locale.US)) {
|
|
|
2228 |
DecimalFormatSymbols dfs = DecimalFormatSymbols.getInstance(l);
|
|
|
2229 |
zero = dfs.getZeroDigit();
|
|
|
2230 |
}
|
|
|
2231 |
}
|
|
|
2232 |
|
|
|
2233 |
/**
|
|
|
2234 |
* Returns the locale set by the construction of this formatter.
|
|
|
2235 |
*
|
|
|
2236 |
* <p> The {@link #format(java.util.Locale,String,Object...) format} method
|
|
|
2237 |
* for this object which has a locale argument does not change this value.
|
|
|
2238 |
*
|
|
|
2239 |
* @return <tt>null</tt> if no localization is applied, otherwise a
|
|
|
2240 |
* locale
|
|
|
2241 |
*
|
|
|
2242 |
* @throws FormatterClosedException
|
|
|
2243 |
* If this formatter has been closed by invoking its {@link
|
|
|
2244 |
* #close()} method
|
|
|
2245 |
*/
|
|
|
2246 |
public Locale locale() {
|
|
|
2247 |
ensureOpen();
|
|
|
2248 |
return l;
|
|
|
2249 |
}
|
|
|
2250 |
|
|
|
2251 |
/**
|
|
|
2252 |
* Returns the destination for the output.
|
|
|
2253 |
*
|
|
|
2254 |
* @return The destination for the output
|
|
|
2255 |
*
|
|
|
2256 |
* @throws FormatterClosedException
|
|
|
2257 |
* If this formatter has been closed by invoking its {@link
|
|
|
2258 |
* #close()} method
|
|
|
2259 |
*/
|
|
|
2260 |
public Appendable out() {
|
|
|
2261 |
ensureOpen();
|
|
|
2262 |
return a;
|
|
|
2263 |
}
|
|
|
2264 |
|
|
|
2265 |
/**
|
|
|
2266 |
* Returns the result of invoking <tt>toString()</tt> on the destination
|
|
|
2267 |
* for the output. For example, the following code formats text into a
|
|
|
2268 |
* {@link StringBuilder} then retrieves the resultant string:
|
|
|
2269 |
*
|
|
|
2270 |
* <blockquote><pre>
|
|
|
2271 |
* Formatter f = new Formatter();
|
|
|
2272 |
* f.format("Last reboot at %tc", lastRebootDate);
|
|
|
2273 |
* String s = f.toString();
|
|
|
2274 |
* // -> s == "Last reboot at Sat Jan 01 00:00:00 PST 2000"
|
|
|
2275 |
* </pre></blockquote>
|
|
|
2276 |
*
|
|
|
2277 |
* <p> An invocation of this method behaves in exactly the same way as the
|
|
|
2278 |
* invocation
|
|
|
2279 |
*
|
|
|
2280 |
* <pre>
|
|
|
2281 |
* out().toString() </pre>
|
|
|
2282 |
*
|
|
|
2283 |
* <p> Depending on the specification of <tt>toString</tt> for the {@link
|
|
|
2284 |
* Appendable}, the returned string may or may not contain the characters
|
|
|
2285 |
* written to the destination. For instance, buffers typically return
|
|
|
2286 |
* their contents in <tt>toString()</tt>, but streams cannot since the
|
|
|
2287 |
* data is discarded.
|
|
|
2288 |
*
|
|
|
2289 |
* @return The result of invoking <tt>toString()</tt> on the destination
|
|
|
2290 |
* for the output
|
|
|
2291 |
*
|
|
|
2292 |
* @throws FormatterClosedException
|
|
|
2293 |
* If this formatter has been closed by invoking its {@link
|
|
|
2294 |
* #close()} method
|
|
|
2295 |
*/
|
|
|
2296 |
public String toString() {
|
|
|
2297 |
ensureOpen();
|
|
|
2298 |
return a.toString();
|
|
|
2299 |
}
|
|
|
2300 |
|
|
|
2301 |
/**
|
|
|
2302 |
* Flushes this formatter. If the destination implements the {@link
|
|
|
2303 |
* java.io.Flushable} interface, its <tt>flush</tt> method will be invoked.
|
|
|
2304 |
*
|
|
|
2305 |
* <p> Flushing a formatter writes any buffered output in the destination
|
|
|
2306 |
* to the underlying stream.
|
|
|
2307 |
*
|
|
|
2308 |
* @throws FormatterClosedException
|
|
|
2309 |
* If this formatter has been closed by invoking its {@link
|
|
|
2310 |
* #close()} method
|
|
|
2311 |
*/
|
|
|
2312 |
public void flush() {
|
|
|
2313 |
ensureOpen();
|
|
|
2314 |
if (a instanceof Flushable) {
|
|
|
2315 |
try {
|
|
|
2316 |
((Flushable)a).flush();
|
|
|
2317 |
} catch (IOException ioe) {
|
|
|
2318 |
lastException = ioe;
|
|
|
2319 |
}
|
|
|
2320 |
}
|
|
|
2321 |
}
|
|
|
2322 |
|
|
|
2323 |
/**
|
|
|
2324 |
* Closes this formatter. If the destination implements the {@link
|
|
|
2325 |
* java.io.Closeable} interface, its <tt>close</tt> method will be invoked.
|
|
|
2326 |
*
|
|
|
2327 |
* <p> Closing a formatter allows it to release resources it may be holding
|
|
|
2328 |
* (such as open files). If the formatter is already closed, then invoking
|
|
|
2329 |
* this method has no effect.
|
|
|
2330 |
*
|
|
|
2331 |
* <p> Attempting to invoke any methods except {@link #ioException()} in
|
|
|
2332 |
* this formatter after it has been closed will result in a {@link
|
|
|
2333 |
* FormatterClosedException}.
|
|
|
2334 |
*/
|
|
|
2335 |
public void close() {
|
|
|
2336 |
if (a == null)
|
|
|
2337 |
return;
|
|
|
2338 |
try {
|
|
|
2339 |
if (a instanceof Closeable)
|
|
|
2340 |
((Closeable)a).close();
|
|
|
2341 |
} catch (IOException ioe) {
|
|
|
2342 |
lastException = ioe;
|
|
|
2343 |
} finally {
|
|
|
2344 |
a = null;
|
|
|
2345 |
}
|
|
|
2346 |
}
|
|
|
2347 |
|
|
|
2348 |
private void ensureOpen() {
|
|
|
2349 |
if (a == null)
|
|
|
2350 |
throw new FormatterClosedException();
|
|
|
2351 |
}
|
|
|
2352 |
|
|
|
2353 |
/**
|
|
|
2354 |
* Returns the <tt>IOException</tt> last thrown by this formatter's {@link
|
|
|
2355 |
* Appendable}.
|
|
|
2356 |
*
|
|
|
2357 |
* <p> If the destination's <tt>append()</tt> method never throws
|
|
|
2358 |
* <tt>IOException</tt>, then this method will always return <tt>null</tt>.
|
|
|
2359 |
*
|
|
|
2360 |
* @return The last exception thrown by the Appendable or <tt>null</tt> if
|
|
|
2361 |
* no such exception exists.
|
|
|
2362 |
*/
|
|
|
2363 |
public IOException ioException() {
|
|
|
2364 |
return lastException;
|
|
|
2365 |
}
|
|
|
2366 |
|
|
|
2367 |
/**
|
|
|
2368 |
* Writes a formatted string to this object's destination using the
|
|
|
2369 |
* specified format string and arguments. The locale used is the one
|
|
|
2370 |
* defined during the construction of this formatter.
|
|
|
2371 |
*
|
|
|
2372 |
* @param format
|
|
|
2373 |
* A format string as described in <a href="#syntax">Format string
|
|
|
2374 |
* syntax</a>.
|
|
|
2375 |
*
|
|
|
2376 |
* @param args
|
|
|
2377 |
* Arguments referenced by the format specifiers in the format
|
|
|
2378 |
* string. If there are more arguments than format specifiers, the
|
|
|
2379 |
* extra arguments are ignored. The maximum number of arguments is
|
|
|
2380 |
* limited by the maximum dimension of a Java array as defined by
|
|
|
2381 |
* the <a href="http://java.sun.com/docs/books/vmspec/">Java
|
|
|
2382 |
* Virtual Machine Specification</a>.
|
|
|
2383 |
*
|
|
|
2384 |
* @throws IllegalFormatException
|
|
|
2385 |
* If a format string contains an illegal syntax, a format
|
|
|
2386 |
* specifier that is incompatible with the given arguments,
|
|
|
2387 |
* insufficient arguments given the format string, or other
|
|
|
2388 |
* illegal conditions. For specification of all possible
|
|
|
2389 |
* formatting errors, see the <a href="#detail">Details</a>
|
|
|
2390 |
* section of the formatter class specification.
|
|
|
2391 |
*
|
|
|
2392 |
* @throws FormatterClosedException
|
|
|
2393 |
* If this formatter has been closed by invoking its {@link
|
|
|
2394 |
* #close()} method
|
|
|
2395 |
*
|
|
|
2396 |
* @return This formatter
|
|
|
2397 |
*/
|
|
|
2398 |
public Formatter format(String format, Object ... args) {
|
|
|
2399 |
return format(l, format, args);
|
|
|
2400 |
}
|
|
|
2401 |
|
|
|
2402 |
/**
|
|
|
2403 |
* Writes a formatted string to this object's destination using the
|
|
|
2404 |
* specified locale, format string, and arguments.
|
|
|
2405 |
*
|
|
|
2406 |
* @param l
|
|
|
2407 |
* The {@linkplain java.util.Locale locale} to apply during
|
|
|
2408 |
* formatting. If <tt>l</tt> is <tt>null</tt> then no localization
|
|
|
2409 |
* is applied. This does not change this object's locale that was
|
|
|
2410 |
* set during construction.
|
|
|
2411 |
*
|
|
|
2412 |
* @param format
|
|
|
2413 |
* A format string as described in <a href="#syntax">Format string
|
|
|
2414 |
* syntax</a>
|
|
|
2415 |
*
|
|
|
2416 |
* @param args
|
|
|
2417 |
* Arguments referenced by the format specifiers in the format
|
|
|
2418 |
* string. If there are more arguments than format specifiers, the
|
|
|
2419 |
* extra arguments are ignored. The maximum number of arguments is
|
|
|
2420 |
* limited by the maximum dimension of a Java array as defined by
|
|
|
2421 |
* the <a href="http://java.sun.com/docs/books/vmspec/">Java
|
|
|
2422 |
* Virtual Machine Specification</a>
|
|
|
2423 |
*
|
|
|
2424 |
* @throws IllegalFormatException
|
|
|
2425 |
* If a format string contains an illegal syntax, a format
|
|
|
2426 |
* specifier that is incompatible with the given arguments,
|
|
|
2427 |
* insufficient arguments given the format string, or other
|
|
|
2428 |
* illegal conditions. For specification of all possible
|
|
|
2429 |
* formatting errors, see the <a href="#detail">Details</a>
|
|
|
2430 |
* section of the formatter class specification.
|
|
|
2431 |
*
|
|
|
2432 |
* @throws FormatterClosedException
|
|
|
2433 |
* If this formatter has been closed by invoking its {@link
|
|
|
2434 |
* #close()} method
|
|
|
2435 |
*
|
|
|
2436 |
* @return This formatter
|
|
|
2437 |
*/
|
|
|
2438 |
public Formatter format(Locale l, String format, Object ... args) {
|
|
|
2439 |
ensureOpen();
|
|
|
2440 |
|
|
|
2441 |
// index of last argument referenced
|
|
|
2442 |
int last = -1;
|
|
|
2443 |
// last ordinary index
|
|
|
2444 |
int lasto = -1;
|
|
|
2445 |
|
|
|
2446 |
FormatString[] fsa = parse(format);
|
|
|
2447 |
for (int i = 0; i < fsa.length; i++) {
|
|
|
2448 |
FormatString fs = fsa[i];
|
|
|
2449 |
int index = fs.index();
|
|
|
2450 |
try {
|
|
|
2451 |
switch (index) {
|
|
|
2452 |
case -2: // fixed string, "%n", or "%%"
|
|
|
2453 |
fs.print(null, l);
|
|
|
2454 |
break;
|
|
|
2455 |
case -1: // relative index
|
|
|
2456 |
if (last < 0 || (args != null && last > args.length - 1))
|
|
|
2457 |
throw new MissingFormatArgumentException(fs.toString());
|
|
|
2458 |
fs.print((args == null ? null : args[last]), l);
|
|
|
2459 |
break;
|
|
|
2460 |
case 0: // ordinary index
|
|
|
2461 |
lasto++;
|
|
|
2462 |
last = lasto;
|
|
|
2463 |
if (args != null && lasto > args.length - 1)
|
|
|
2464 |
throw new MissingFormatArgumentException(fs.toString());
|
|
|
2465 |
fs.print((args == null ? null : args[lasto]), l);
|
|
|
2466 |
break;
|
|
|
2467 |
default: // explicit index
|
|
|
2468 |
last = index - 1;
|
|
|
2469 |
if (args != null && last > args.length - 1)
|
|
|
2470 |
throw new MissingFormatArgumentException(fs.toString());
|
|
|
2471 |
fs.print((args == null ? null : args[last]), l);
|
|
|
2472 |
break;
|
|
|
2473 |
}
|
|
|
2474 |
} catch (IOException x) {
|
|
|
2475 |
lastException = x;
|
|
|
2476 |
}
|
|
|
2477 |
}
|
|
|
2478 |
return this;
|
|
|
2479 |
}
|
|
|
2480 |
|
|
|
2481 |
// %[argument_index$][flags][width][.precision][t]conversion
|
|
|
2482 |
private static final String formatSpecifier
|
|
|
2483 |
= "%(\\d+\\$)?([-#+ 0,(\\<]*)?(\\d+)?(\\.\\d+)?([tT])?([a-zA-Z%])";
|
|
|
2484 |
|
|
|
2485 |
private static Pattern fsPattern = Pattern.compile(formatSpecifier);
|
|
|
2486 |
|
|
|
2487 |
// Look for format specifiers in the format string.
|
|
|
2488 |
private FormatString[] parse(String s) {
|
|
|
2489 |
ArrayList al = new ArrayList();
|
|
|
2490 |
Matcher m = fsPattern.matcher(s);
|
|
|
2491 |
int i = 0;
|
|
|
2492 |
while (i < s.length()) {
|
|
|
2493 |
if (m.find(i)) {
|
|
|
2494 |
// Anything between the start of the string and the beginning
|
|
|
2495 |
// of the format specifier is either fixed text or contains
|
|
|
2496 |
// an invalid format string.
|
|
|
2497 |
if (m.start() != i) {
|
|
|
2498 |
// Make sure we didn't miss any invalid format specifiers
|
|
|
2499 |
checkText(s.substring(i, m.start()));
|
|
|
2500 |
// Assume previous characters were fixed text
|
|
|
2501 |
al.add(new FixedString(s.substring(i, m.start())));
|
|
|
2502 |
}
|
|
|
2503 |
|
|
|
2504 |
// Expect 6 groups in regular expression
|
|
|
2505 |
String[] sa = new String[6];
|
|
|
2506 |
for (int j = 0; j < m.groupCount(); j++)
|
|
|
2507 |
{
|
|
|
2508 |
sa[j] = m.group(j + 1);
|
|
|
2509 |
// System.out.print(sa[j] + " ");
|
|
|
2510 |
}
|
|
|
2511 |
// System.out.println();
|
|
|
2512 |
al.add(new FormatSpecifier(this, sa));
|
|
|
2513 |
i = m.end();
|
|
|
2514 |
} else {
|
|
|
2515 |
// No more valid format specifiers. Check for possible invalid
|
|
|
2516 |
// format specifiers.
|
|
|
2517 |
checkText(s.substring(i));
|
|
|
2518 |
// The rest of the string is fixed text
|
|
|
2519 |
al.add(new FixedString(s.substring(i)));
|
|
|
2520 |
break;
|
|
|
2521 |
}
|
|
|
2522 |
}
|
|
|
2523 |
// FormatString[] fs = new FormatString[al.size()];
|
|
|
2524 |
// for (int j = 0; j < al.size(); j++)
|
|
|
2525 |
// System.out.println(((FormatString) al.get(j)).toString());
|
|
|
2526 |
return (FormatString[]) al.toArray(new FormatString[0]);
|
|
|
2527 |
}
|
|
|
2528 |
|
|
|
2529 |
private void checkText(String s) {
|
|
|
2530 |
int idx;
|
|
|
2531 |
// If there are any '%' in the given string, we got a bad format
|
|
|
2532 |
// specifier.
|
|
|
2533 |
if ((idx = s.indexOf('%')) != -1) {
|
|
|
2534 |
char c = (idx > s.length() - 2 ? '%' : s.charAt(idx + 1));
|
|
|
2535 |
throw new UnknownFormatConversionException(String.valueOf(c));
|
|
|
2536 |
}
|
|
|
2537 |
}
|
|
|
2538 |
|
|
|
2539 |
private interface FormatString {
|
|
|
2540 |
int index();
|
|
|
2541 |
void print(Object arg, Locale l) throws IOException;
|
|
|
2542 |
String toString();
|
|
|
2543 |
}
|
|
|
2544 |
|
|
|
2545 |
private class FixedString implements FormatString {
|
|
|
2546 |
private String s;
|
|
|
2547 |
FixedString(String s) { this.s = s; }
|
|
|
2548 |
public int index() { return -2; }
|
|
|
2549 |
public void print(Object arg, Locale l)
|
|
|
2550 |
throws IOException { a.append(s); }
|
|
|
2551 |
public String toString() { return s; }
|
|
|
2552 |
}
|
|
|
2553 |
|
|
|
2554 |
public enum BigDecimalLayoutForm { SCIENTIFIC, DECIMAL_FLOAT };
|
|
|
2555 |
|
|
|
2556 |
private class FormatSpecifier implements FormatString {
|
|
|
2557 |
private int index = -1;
|
|
|
2558 |
private Flags f = Flags.NONE;
|
|
|
2559 |
private int width;
|
|
|
2560 |
private int precision;
|
|
|
2561 |
private boolean dt = false;
|
|
|
2562 |
private char c;
|
|
|
2563 |
|
|
|
2564 |
private Formatter formatter;
|
|
|
2565 |
|
|
|
2566 |
// cache the line separator
|
|
|
2567 |
private String ls;
|
|
|
2568 |
|
|
|
2569 |
private int index(String s) {
|
|
|
2570 |
if (s != null) {
|
|
|
2571 |
try {
|
|
|
2572 |
index = Integer.parseInt(s.substring(0, s.length() - 1));
|
|
|
2573 |
} catch (NumberFormatException x) {
|
|
|
2574 |
assert(false);
|
|
|
2575 |
}
|
|
|
2576 |
} else {
|
|
|
2577 |
index = 0;
|
|
|
2578 |
}
|
|
|
2579 |
return index;
|
|
|
2580 |
}
|
|
|
2581 |
|
|
|
2582 |
public int index() {
|
|
|
2583 |
return index;
|
|
|
2584 |
}
|
|
|
2585 |
|
|
|
2586 |
private Flags flags(String s) {
|
|
|
2587 |
f = Flags.parse(s);
|
|
|
2588 |
if (f.contains(Flags.PREVIOUS))
|
|
|
2589 |
index = -1;
|
|
|
2590 |
return f;
|
|
|
2591 |
}
|
|
|
2592 |
|
|
|
2593 |
Flags flags() {
|
|
|
2594 |
return f;
|
|
|
2595 |
}
|
|
|
2596 |
|
|
|
2597 |
private int width(String s) {
|
|
|
2598 |
width = -1;
|
|
|
2599 |
if (s != null) {
|
|
|
2600 |
try {
|
|
|
2601 |
width = Integer.parseInt(s);
|
|
|
2602 |
if (width < 0)
|
|
|
2603 |
throw new IllegalFormatWidthException(width);
|
|
|
2604 |
} catch (NumberFormatException x) {
|
|
|
2605 |
assert(false);
|
|
|
2606 |
}
|
|
|
2607 |
}
|
|
|
2608 |
return width;
|
|
|
2609 |
}
|
|
|
2610 |
|
|
|
2611 |
int width() {
|
|
|
2612 |
return width;
|
|
|
2613 |
}
|
|
|
2614 |
|
|
|
2615 |
private int precision(String s) {
|
|
|
2616 |
precision = -1;
|
|
|
2617 |
if (s != null) {
|
|
|
2618 |
try {
|
|
|
2619 |
// remove the '.'
|
|
|
2620 |
precision = Integer.parseInt(s.substring(1));
|
|
|
2621 |
if (precision < 0)
|
|
|
2622 |
throw new IllegalFormatPrecisionException(precision);
|
|
|
2623 |
} catch (NumberFormatException x) {
|
|
|
2624 |
assert(false);
|
|
|
2625 |
}
|
|
|
2626 |
}
|
|
|
2627 |
return precision;
|
|
|
2628 |
}
|
|
|
2629 |
|
|
|
2630 |
int precision() {
|
|
|
2631 |
return precision;
|
|
|
2632 |
}
|
|
|
2633 |
|
|
|
2634 |
private char conversion(String s) {
|
|
|
2635 |
c = s.charAt(0);
|
|
|
2636 |
if (!dt) {
|
|
|
2637 |
if (!Conversion.isValid(c))
|
|
|
2638 |
throw new UnknownFormatConversionException(String.valueOf(c));
|
|
|
2639 |
if (Character.isUpperCase(c))
|
|
|
2640 |
f.add(Flags.UPPERCASE);
|
|
|
2641 |
c = Character.toLowerCase(c);
|
|
|
2642 |
if (Conversion.isText(c))
|
|
|
2643 |
index = -2;
|
|
|
2644 |
}
|
|
|
2645 |
return c;
|
|
|
2646 |
}
|
|
|
2647 |
|
|
|
2648 |
private char conversion() {
|
|
|
2649 |
return c;
|
|
|
2650 |
}
|
|
|
2651 |
|
|
|
2652 |
FormatSpecifier(Formatter formatter, String[] sa) {
|
|
|
2653 |
this.formatter = formatter;
|
|
|
2654 |
int idx = 0;
|
|
|
2655 |
|
|
|
2656 |
index(sa[idx++]);
|
|
|
2657 |
flags(sa[idx++]);
|
|
|
2658 |
width(sa[idx++]);
|
|
|
2659 |
precision(sa[idx++]);
|
|
|
2660 |
|
|
|
2661 |
if (sa[idx] != null) {
|
|
|
2662 |
dt = true;
|
|
|
2663 |
if (sa[idx].equals("T"))
|
|
|
2664 |
f.add(Flags.UPPERCASE);
|
|
|
2665 |
}
|
|
|
2666 |
conversion(sa[++idx]);
|
|
|
2667 |
|
|
|
2668 |
if (dt)
|
|
|
2669 |
checkDateTime();
|
|
|
2670 |
else if (Conversion.isGeneral(c))
|
|
|
2671 |
checkGeneral();
|
|
|
2672 |
else if (Conversion.isCharacter(c))
|
|
|
2673 |
checkCharacter();
|
|
|
2674 |
else if (Conversion.isInteger(c))
|
|
|
2675 |
checkInteger();
|
|
|
2676 |
else if (Conversion.isFloat(c))
|
|
|
2677 |
checkFloat();
|
|
|
2678 |
else if (Conversion.isText(c))
|
|
|
2679 |
checkText();
|
|
|
2680 |
else
|
|
|
2681 |
throw new UnknownFormatConversionException(String.valueOf(c));
|
|
|
2682 |
}
|
|
|
2683 |
|
|
|
2684 |
public void print(Object arg, Locale l) throws IOException {
|
|
|
2685 |
if (dt) {
|
|
|
2686 |
printDateTime(arg, l);
|
|
|
2687 |
return;
|
|
|
2688 |
}
|
|
|
2689 |
switch(c) {
|
|
|
2690 |
case Conversion.DECIMAL_INTEGER:
|
|
|
2691 |
case Conversion.OCTAL_INTEGER:
|
|
|
2692 |
case Conversion.HEXADECIMAL_INTEGER:
|
|
|
2693 |
printInteger(arg, l);
|
|
|
2694 |
break;
|
|
|
2695 |
case Conversion.SCIENTIFIC:
|
|
|
2696 |
case Conversion.GENERAL:
|
|
|
2697 |
case Conversion.DECIMAL_FLOAT:
|
|
|
2698 |
case Conversion.HEXADECIMAL_FLOAT:
|
|
|
2699 |
printFloat(arg, l);
|
|
|
2700 |
break;
|
|
|
2701 |
case Conversion.CHARACTER:
|
|
|
2702 |
case Conversion.CHARACTER_UPPER:
|
|
|
2703 |
printCharacter(arg);
|
|
|
2704 |
break;
|
|
|
2705 |
case Conversion.BOOLEAN:
|
|
|
2706 |
printBoolean(arg);
|
|
|
2707 |
break;
|
|
|
2708 |
case Conversion.STRING:
|
|
|
2709 |
printString(arg, l);
|
|
|
2710 |
break;
|
|
|
2711 |
case Conversion.HASHCODE:
|
|
|
2712 |
printHashCode(arg);
|
|
|
2713 |
break;
|
|
|
2714 |
case Conversion.LINE_SEPARATOR:
|
|
|
2715 |
if (ls == null)
|
|
|
2716 |
ls = System.getProperty("line.separator");
|
|
|
2717 |
a.append(ls);
|
|
|
2718 |
break;
|
|
|
2719 |
case Conversion.PERCENT_SIGN:
|
|
|
2720 |
a.append('%');
|
|
|
2721 |
break;
|
|
|
2722 |
default:
|
|
|
2723 |
assert false;
|
|
|
2724 |
}
|
|
|
2725 |
}
|
|
|
2726 |
|
|
|
2727 |
private void printInteger(Object arg, Locale l) throws IOException {
|
|
|
2728 |
if (arg == null)
|
|
|
2729 |
print("null");
|
|
|
2730 |
else if (arg instanceof Byte)
|
|
|
2731 |
print(((Byte)arg).byteValue(), l);
|
|
|
2732 |
else if (arg instanceof Short)
|
|
|
2733 |
print(((Short)arg).shortValue(), l);
|
|
|
2734 |
else if (arg instanceof Integer)
|
|
|
2735 |
print(((Integer)arg).intValue(), l);
|
|
|
2736 |
else if (arg instanceof Long)
|
|
|
2737 |
print(((Long)arg).longValue(), l);
|
|
|
2738 |
else if (arg instanceof BigInteger)
|
|
|
2739 |
print(((BigInteger)arg), l);
|
|
|
2740 |
else
|
|
|
2741 |
failConversion(c, arg);
|
|
|
2742 |
}
|
|
|
2743 |
|
|
|
2744 |
private void printFloat(Object arg, Locale l) throws IOException {
|
|
|
2745 |
if (arg == null)
|
|
|
2746 |
print("null");
|
|
|
2747 |
else if (arg instanceof Float)
|
|
|
2748 |
print(((Float)arg).floatValue(), l);
|
|
|
2749 |
else if (arg instanceof Double)
|
|
|
2750 |
print(((Double)arg).doubleValue(), l);
|
|
|
2751 |
else if (arg instanceof BigDecimal)
|
|
|
2752 |
print(((BigDecimal)arg), l);
|
|
|
2753 |
else
|
|
|
2754 |
failConversion(c, arg);
|
|
|
2755 |
}
|
|
|
2756 |
|
|
|
2757 |
private void printDateTime(Object arg, Locale l) throws IOException {
|
|
|
2758 |
if (arg == null) {
|
|
|
2759 |
print("null");
|
|
|
2760 |
return;
|
|
|
2761 |
}
|
|
|
2762 |
Calendar cal = null;
|
|
|
2763 |
|
|
|
2764 |
// Instead of Calendar.setLenient(true), perhaps we should
|
|
|
2765 |
// wrap the IllegalArgumentException that might be thrown?
|
|
|
2766 |
if (arg instanceof Long) {
|
|
|
2767 |
// Note that the following method uses an instance of the
|
|
|
2768 |
// default time zone (TimeZone.getDefaultRef().
|
|
|
2769 |
cal = Calendar.getInstance(l == null ? Locale.US : l);
|
|
|
2770 |
cal.setTimeInMillis((Long)arg);
|
|
|
2771 |
} else if (arg instanceof Date) {
|
|
|
2772 |
// Note that the following method uses an instance of the
|
|
|
2773 |
// default time zone (TimeZone.getDefaultRef().
|
|
|
2774 |
cal = Calendar.getInstance(l == null ? Locale.US : l);
|
|
|
2775 |
cal.setTime((Date)arg);
|
|
|
2776 |
} else if (arg instanceof Calendar) {
|
|
|
2777 |
cal = (Calendar) ((Calendar)arg).clone();
|
|
|
2778 |
cal.setLenient(true);
|
|
|
2779 |
} else {
|
|
|
2780 |
failConversion(c, arg);
|
|
|
2781 |
}
|
|
|
2782 |
// Use the provided locale so that invocations of
|
|
|
2783 |
// localizedMagnitude() use optimizations for null.
|
|
|
2784 |
print(cal, c, l);
|
|
|
2785 |
}
|
|
|
2786 |
|
|
|
2787 |
private void printCharacter(Object arg) throws IOException {
|
|
|
2788 |
if (arg == null) {
|
|
|
2789 |
print("null");
|
|
|
2790 |
return;
|
|
|
2791 |
}
|
|
|
2792 |
String s = null;
|
|
|
2793 |
if (arg instanceof Character) {
|
|
|
2794 |
s = ((Character)arg).toString();
|
|
|
2795 |
} else if (arg instanceof Byte) {
|
|
|
2796 |
byte i = ((Byte)arg).byteValue();
|
|
|
2797 |
if (Character.isValidCodePoint(i))
|
|
|
2798 |
s = new String(Character.toChars(i));
|
|
|
2799 |
else
|
|
|
2800 |
throw new IllegalFormatCodePointException(i);
|
|
|
2801 |
} else if (arg instanceof Short) {
|
|
|
2802 |
short i = ((Short)arg).shortValue();
|
|
|
2803 |
if (Character.isValidCodePoint(i))
|
|
|
2804 |
s = new String(Character.toChars(i));
|
|
|
2805 |
else
|
|
|
2806 |
throw new IllegalFormatCodePointException(i);
|
|
|
2807 |
} else if (arg instanceof Integer) {
|
|
|
2808 |
int i = ((Integer)arg).intValue();
|
|
|
2809 |
if (Character.isValidCodePoint(i))
|
|
|
2810 |
s = new String(Character.toChars(i));
|
|
|
2811 |
else
|
|
|
2812 |
throw new IllegalFormatCodePointException(i);
|
|
|
2813 |
} else {
|
|
|
2814 |
failConversion(c, arg);
|
|
|
2815 |
}
|
|
|
2816 |
print(s);
|
|
|
2817 |
}
|
|
|
2818 |
|
|
|
2819 |
private void printString(Object arg, Locale l) throws IOException {
|
|
|
2820 |
if (arg == null) {
|
|
|
2821 |
print("null");
|
|
|
2822 |
} else if (arg instanceof Formattable) {
|
|
|
2823 |
Formatter fmt = formatter;
|
|
|
2824 |
if (formatter.locale() != l)
|
|
|
2825 |
fmt = new Formatter(formatter.out(), l);
|
|
|
2826 |
((Formattable)arg).formatTo(fmt, f.valueOf(), width, precision);
|
|
|
2827 |
} else {
|
|
|
2828 |
print(arg.toString());
|
|
|
2829 |
}
|
|
|
2830 |
}
|
|
|
2831 |
|
|
|
2832 |
private void printBoolean(Object arg) throws IOException {
|
|
|
2833 |
String s;
|
|
|
2834 |
if (arg != null)
|
|
|
2835 |
s = ((arg instanceof Boolean)
|
|
|
2836 |
? ((Boolean)arg).toString()
|
|
|
2837 |
: Boolean.toString(true));
|
|
|
2838 |
else
|
|
|
2839 |
s = Boolean.toString(false);
|
|
|
2840 |
print(s);
|
|
|
2841 |
}
|
|
|
2842 |
|
|
|
2843 |
private void printHashCode(Object arg) throws IOException {
|
|
|
2844 |
String s = (arg == null
|
|
|
2845 |
? "null"
|
|
|
2846 |
: Integer.toHexString(arg.hashCode()));
|
|
|
2847 |
print(s);
|
|
|
2848 |
}
|
|
|
2849 |
|
|
|
2850 |
private void print(String s) throws IOException {
|
|
|
2851 |
if (precision != -1 && precision < s.length())
|
|
|
2852 |
s = s.substring(0, precision);
|
|
|
2853 |
if (f.contains(Flags.UPPERCASE))
|
|
|
2854 |
s = s.toUpperCase();
|
|
|
2855 |
a.append(justify(s));
|
|
|
2856 |
}
|
|
|
2857 |
|
|
|
2858 |
private String justify(String s) {
|
|
|
2859 |
if (width == -1)
|
|
|
2860 |
return s;
|
|
|
2861 |
StringBuilder sb = new StringBuilder();
|
|
|
2862 |
boolean pad = f.contains(Flags.LEFT_JUSTIFY);
|
|
|
2863 |
int sp = width - s.length();
|
|
|
2864 |
if (!pad)
|
|
|
2865 |
for (int i = 0; i < sp; i++) sb.append(' ');
|
|
|
2866 |
sb.append(s);
|
|
|
2867 |
if (pad)
|
|
|
2868 |
for (int i = 0; i < sp; i++) sb.append(' ');
|
|
|
2869 |
return sb.toString();
|
|
|
2870 |
}
|
|
|
2871 |
|
|
|
2872 |
public String toString() {
|
|
|
2873 |
StringBuilder sb = new StringBuilder('%');
|
|
|
2874 |
// Flags.UPPERCASE is set internally for legal conversions.
|
|
|
2875 |
Flags dupf = f.dup().remove(Flags.UPPERCASE);
|
|
|
2876 |
sb.append(dupf.toString());
|
|
|
2877 |
if (index > 0)
|
|
|
2878 |
sb.append(index).append('$');
|
|
|
2879 |
if (width != -1)
|
|
|
2880 |
sb.append(width);
|
|
|
2881 |
if (precision != -1)
|
|
|
2882 |
sb.append('.').append(precision);
|
|
|
2883 |
if (dt)
|
|
|
2884 |
sb.append(f.contains(Flags.UPPERCASE) ? 'T' : 't');
|
|
|
2885 |
sb.append(f.contains(Flags.UPPERCASE)
|
|
|
2886 |
? Character.toUpperCase(c) : c);
|
|
|
2887 |
return sb.toString();
|
|
|
2888 |
}
|
|
|
2889 |
|
|
|
2890 |
private void checkGeneral() {
|
|
|
2891 |
if ((c == Conversion.BOOLEAN || c == Conversion.HASHCODE)
|
|
|
2892 |
&& f.contains(Flags.ALTERNATE))
|
|
|
2893 |
failMismatch(Flags.ALTERNATE, c);
|
|
|
2894 |
// '-' requires a width
|
|
|
2895 |
if (width == -1 && f.contains(Flags.LEFT_JUSTIFY))
|
|
|
2896 |
throw new MissingFormatWidthException(toString());
|
|
|
2897 |
checkBadFlags(Flags.PLUS, Flags.LEADING_SPACE, Flags.ZERO_PAD,
|
|
|
2898 |
Flags.GROUP, Flags.PARENTHESES);
|
|
|
2899 |
}
|
|
|
2900 |
|
|
|
2901 |
private void checkDateTime() {
|
|
|
2902 |
if (precision != -1)
|
|
|
2903 |
throw new IllegalFormatPrecisionException(precision);
|
|
|
2904 |
if (!DateTime.isValid(c))
|
|
|
2905 |
throw new UnknownFormatConversionException("t" + c);
|
|
|
2906 |
checkBadFlags(Flags.ALTERNATE, Flags.PLUS, Flags.LEADING_SPACE,
|
|
|
2907 |
Flags.ZERO_PAD, Flags.GROUP, Flags.PARENTHESES);
|
|
|
2908 |
// '-' requires a width
|
|
|
2909 |
if (width == -1 && f.contains(Flags.LEFT_JUSTIFY))
|
|
|
2910 |
throw new MissingFormatWidthException(toString());
|
|
|
2911 |
}
|
|
|
2912 |
|
|
|
2913 |
private void checkCharacter() {
|
|
|
2914 |
if (precision != -1)
|
|
|
2915 |
throw new IllegalFormatPrecisionException(precision);
|
|
|
2916 |
checkBadFlags(Flags.ALTERNATE, Flags.PLUS, Flags.LEADING_SPACE,
|
|
|
2917 |
Flags.ZERO_PAD, Flags.GROUP, Flags.PARENTHESES);
|
|
|
2918 |
// '-' requires a width
|
|
|
2919 |
if (width == -1 && f.contains(Flags.LEFT_JUSTIFY))
|
|
|
2920 |
throw new MissingFormatWidthException(toString());
|
|
|
2921 |
}
|
|
|
2922 |
|
|
|
2923 |
private void checkInteger() {
|
|
|
2924 |
checkNumeric();
|
|
|
2925 |
if (precision != -1)
|
|
|
2926 |
throw new IllegalFormatPrecisionException(precision);
|
|
|
2927 |
|
|
|
2928 |
if (c == Conversion.DECIMAL_INTEGER)
|
|
|
2929 |
checkBadFlags(Flags.ALTERNATE);
|
|
|
2930 |
else if (c == Conversion.OCTAL_INTEGER)
|
|
|
2931 |
checkBadFlags(Flags.GROUP);
|
|
|
2932 |
else
|
|
|
2933 |
checkBadFlags(Flags.GROUP);
|
|
|
2934 |
}
|
|
|
2935 |
|
|
|
2936 |
private void checkBadFlags(Flags ... badFlags) {
|
|
|
2937 |
for (int i = 0; i < badFlags.length; i++)
|
|
|
2938 |
if (f.contains(badFlags[i]))
|
|
|
2939 |
failMismatch(badFlags[i], c);
|
|
|
2940 |
}
|
|
|
2941 |
|
|
|
2942 |
private void checkFloat() {
|
|
|
2943 |
checkNumeric();
|
|
|
2944 |
if (c == Conversion.DECIMAL_FLOAT) {
|
|
|
2945 |
} else if (c == Conversion.HEXADECIMAL_FLOAT) {
|
|
|
2946 |
checkBadFlags(Flags.PARENTHESES, Flags.GROUP);
|
|
|
2947 |
} else if (c == Conversion.SCIENTIFIC) {
|
|
|
2948 |
checkBadFlags(Flags.GROUP);
|
|
|
2949 |
} else if (c == Conversion.GENERAL) {
|
|
|
2950 |
checkBadFlags(Flags.ALTERNATE);
|
|
|
2951 |
}
|
|
|
2952 |
}
|
|
|
2953 |
|
|
|
2954 |
private void checkNumeric() {
|
|
|
2955 |
if (width != -1 && width < 0)
|
|
|
2956 |
throw new IllegalFormatWidthException(width);
|
|
|
2957 |
|
|
|
2958 |
if (precision != -1 && precision < 0)
|
|
|
2959 |
throw new IllegalFormatPrecisionException(precision);
|
|
|
2960 |
|
|
|
2961 |
// '-' and '0' require a width
|
|
|
2962 |
if (width == -1
|
|
|
2963 |
&& (f.contains(Flags.LEFT_JUSTIFY) || f.contains(Flags.ZERO_PAD)))
|
|
|
2964 |
throw new MissingFormatWidthException(toString());
|
|
|
2965 |
|
|
|
2966 |
// bad combination
|
|
|
2967 |
if ((f.contains(Flags.PLUS) && f.contains(Flags.LEADING_SPACE))
|
|
|
2968 |
|| (f.contains(Flags.LEFT_JUSTIFY) && f.contains(Flags.ZERO_PAD)))
|
|
|
2969 |
throw new IllegalFormatFlagsException(f.toString());
|
|
|
2970 |
}
|
|
|
2971 |
|
|
|
2972 |
private void checkText() {
|
|
|
2973 |
if (precision != -1)
|
|
|
2974 |
throw new IllegalFormatPrecisionException(precision);
|
|
|
2975 |
switch (c) {
|
|
|
2976 |
case Conversion.PERCENT_SIGN:
|
|
|
2977 |
if (f.valueOf() != Flags.LEFT_JUSTIFY.valueOf()
|
|
|
2978 |
&& f.valueOf() != Flags.NONE.valueOf())
|
|
|
2979 |
throw new IllegalFormatFlagsException(f.toString());
|
|
|
2980 |
// '-' requires a width
|
|
|
2981 |
if (width == -1 && f.contains(Flags.LEFT_JUSTIFY))
|
|
|
2982 |
throw new MissingFormatWidthException(toString());
|
|
|
2983 |
break;
|
|
|
2984 |
case Conversion.LINE_SEPARATOR:
|
|
|
2985 |
if (width != -1)
|
|
|
2986 |
throw new IllegalFormatWidthException(width);
|
|
|
2987 |
if (f.valueOf() != Flags.NONE.valueOf())
|
|
|
2988 |
throw new IllegalFormatFlagsException(f.toString());
|
|
|
2989 |
break;
|
|
|
2990 |
default:
|
|
|
2991 |
assert false;
|
|
|
2992 |
}
|
|
|
2993 |
}
|
|
|
2994 |
|
|
|
2995 |
private void print(byte value, Locale l) throws IOException {
|
|
|
2996 |
long v = value;
|
|
|
2997 |
if (value < 0
|
|
|
2998 |
&& (c == Conversion.OCTAL_INTEGER
|
|
|
2999 |
|| c == Conversion.HEXADECIMAL_INTEGER)) {
|
|
|
3000 |
v += (1L << 8);
|
|
|
3001 |
assert v >= 0 : v;
|
|
|
3002 |
}
|
|
|
3003 |
print(v, l);
|
|
|
3004 |
}
|
|
|
3005 |
|
|
|
3006 |
private void print(short value, Locale l) throws IOException {
|
|
|
3007 |
long v = value;
|
|
|
3008 |
if (value < 0
|
|
|
3009 |
&& (c == Conversion.OCTAL_INTEGER
|
|
|
3010 |
|| c == Conversion.HEXADECIMAL_INTEGER)) {
|
|
|
3011 |
v += (1L << 16);
|
|
|
3012 |
assert v >= 0 : v;
|
|
|
3013 |
}
|
|
|
3014 |
print(v, l);
|
|
|
3015 |
}
|
|
|
3016 |
|
|
|
3017 |
private void print(int value, Locale l) throws IOException {
|
|
|
3018 |
long v = value;
|
|
|
3019 |
if (value < 0
|
|
|
3020 |
&& (c == Conversion.OCTAL_INTEGER
|
|
|
3021 |
|| c == Conversion.HEXADECIMAL_INTEGER)) {
|
|
|
3022 |
v += (1L << 32);
|
|
|
3023 |
assert v >= 0 : v;
|
|
|
3024 |
}
|
|
|
3025 |
print(v, l);
|
|
|
3026 |
}
|
|
|
3027 |
|
|
|
3028 |
private void print(long value, Locale l) throws IOException {
|
|
|
3029 |
|
|
|
3030 |
StringBuilder sb = new StringBuilder();
|
|
|
3031 |
|
|
|
3032 |
if (c == Conversion.DECIMAL_INTEGER) {
|
|
|
3033 |
boolean neg = value < 0;
|
|
|
3034 |
char[] va;
|
|
|
3035 |
if (value < 0)
|
|
|
3036 |
va = Long.toString(value, 10).substring(1).toCharArray();
|
|
|
3037 |
else
|
|
|
3038 |
va = Long.toString(value, 10).toCharArray();
|
|
|
3039 |
|
|
|
3040 |
// leading sign indicator
|
|
|
3041 |
leadingSign(sb, neg);
|
|
|
3042 |
|
|
|
3043 |
// the value
|
|
|
3044 |
localizedMagnitude(sb, va, f, adjustWidth(width, f, neg), l);
|
|
|
3045 |
|
|
|
3046 |
// trailing sign indicator
|
|
|
3047 |
trailingSign(sb, neg);
|
|
|
3048 |
} else if (c == Conversion.OCTAL_INTEGER) {
|
|
|
3049 |
checkBadFlags(Flags.PARENTHESES, Flags.LEADING_SPACE,
|
|
|
3050 |
Flags.PLUS);
|
|
|
3051 |
String s = Long.toOctalString(value);
|
|
|
3052 |
int len = (f.contains(Flags.ALTERNATE)
|
|
|
3053 |
? s.length() + 1
|
|
|
3054 |
: s.length());
|
|
|
3055 |
|
|
|
3056 |
// apply ALTERNATE (radix indicator for octal) before ZERO_PAD
|
|
|
3057 |
if (f.contains(Flags.ALTERNATE))
|
|
|
3058 |
sb.append('0');
|
|
|
3059 |
if (f.contains(Flags.ZERO_PAD))
|
|
|
3060 |
for (int i = 0; i < width - len; i++) sb.append('0');
|
|
|
3061 |
sb.append(s);
|
|
|
3062 |
} else if (c == Conversion.HEXADECIMAL_INTEGER) {
|
|
|
3063 |
checkBadFlags(Flags.PARENTHESES, Flags.LEADING_SPACE,
|
|
|
3064 |
Flags.PLUS);
|
|
|
3065 |
String s = Long.toHexString(value);
|
|
|
3066 |
int len = (f.contains(Flags.ALTERNATE)
|
|
|
3067 |
? s.length() + 2
|
|
|
3068 |
: s.length());
|
|
|
3069 |
|
|
|
3070 |
// apply ALTERNATE (radix indicator for hex) before ZERO_PAD
|
|
|
3071 |
if (f.contains(Flags.ALTERNATE))
|
|
|
3072 |
sb.append(f.contains(Flags.UPPERCASE) ? "0X" : "0x");
|
|
|
3073 |
if (f.contains(Flags.ZERO_PAD))
|
|
|
3074 |
for (int i = 0; i < width - len; i++) sb.append('0');
|
|
|
3075 |
if (f.contains(Flags.UPPERCASE))
|
|
|
3076 |
s = s.toUpperCase();
|
|
|
3077 |
sb.append(s);
|
|
|
3078 |
}
|
|
|
3079 |
|
|
|
3080 |
// justify based on width
|
|
|
3081 |
a.append(justify(sb.toString()));
|
|
|
3082 |
}
|
|
|
3083 |
|
|
|
3084 |
// neg := val < 0
|
|
|
3085 |
private StringBuilder leadingSign(StringBuilder sb, boolean neg) {
|
|
|
3086 |
if (!neg) {
|
|
|
3087 |
if (f.contains(Flags.PLUS)) {
|
|
|
3088 |
sb.append('+');
|
|
|
3089 |
} else if (f.contains(Flags.LEADING_SPACE)) {
|
|
|
3090 |
sb.append(' ');
|
|
|
3091 |
}
|
|
|
3092 |
} else {
|
|
|
3093 |
if (f.contains(Flags.PARENTHESES))
|
|
|
3094 |
sb.append('(');
|
|
|
3095 |
else
|
|
|
3096 |
sb.append('-');
|
|
|
3097 |
}
|
|
|
3098 |
return sb;
|
|
|
3099 |
}
|
|
|
3100 |
|
|
|
3101 |
// neg := val < 0
|
|
|
3102 |
private StringBuilder trailingSign(StringBuilder sb, boolean neg) {
|
|
|
3103 |
if (neg && f.contains(Flags.PARENTHESES))
|
|
|
3104 |
sb.append(')');
|
|
|
3105 |
return sb;
|
|
|
3106 |
}
|
|
|
3107 |
|
|
|
3108 |
private void print(BigInteger value, Locale l) throws IOException {
|
|
|
3109 |
StringBuilder sb = new StringBuilder();
|
|
|
3110 |
boolean neg = value.signum() == -1;
|
|
|
3111 |
BigInteger v = value.abs();
|
|
|
3112 |
|
|
|
3113 |
// leading sign indicator
|
|
|
3114 |
leadingSign(sb, neg);
|
|
|
3115 |
|
|
|
3116 |
// the value
|
|
|
3117 |
if (c == Conversion.DECIMAL_INTEGER) {
|
|
|
3118 |
char[] va = v.toString().toCharArray();
|
|
|
3119 |
localizedMagnitude(sb, va, f, adjustWidth(width, f, neg), l);
|
|
|
3120 |
} else if (c == Conversion.OCTAL_INTEGER) {
|
|
|
3121 |
String s = v.toString(8);
|
|
|
3122 |
|
|
|
3123 |
int len = s.length() + sb.length();
|
|
|
3124 |
if (neg && f.contains(Flags.PARENTHESES))
|
|
|
3125 |
len++;
|
|
|
3126 |
|
|
|
3127 |
// apply ALTERNATE (radix indicator for octal) before ZERO_PAD
|
|
|
3128 |
if (f.contains(Flags.ALTERNATE)) {
|
|
|
3129 |
len++;
|
|
|
3130 |
sb.append('0');
|
|
|
3131 |
}
|
|
|
3132 |
if (f.contains(Flags.ZERO_PAD)) {
|
|
|
3133 |
for (int i = 0; i < width - len; i++)
|
|
|
3134 |
sb.append('0');
|
|
|
3135 |
}
|
|
|
3136 |
sb.append(s);
|
|
|
3137 |
} else if (c == Conversion.HEXADECIMAL_INTEGER) {
|
|
|
3138 |
String s = v.toString(16);
|
|
|
3139 |
|
|
|
3140 |
int len = s.length() + sb.length();
|
|
|
3141 |
if (neg && f.contains(Flags.PARENTHESES))
|
|
|
3142 |
len++;
|
|
|
3143 |
|
|
|
3144 |
// apply ALTERNATE (radix indicator for hex) before ZERO_PAD
|
|
|
3145 |
if (f.contains(Flags.ALTERNATE)) {
|
|
|
3146 |
len += 2;
|
|
|
3147 |
sb.append(f.contains(Flags.UPPERCASE) ? "0X" : "0x");
|
|
|
3148 |
}
|
|
|
3149 |
if (f.contains(Flags.ZERO_PAD))
|
|
|
3150 |
for (int i = 0; i < width - len; i++)
|
|
|
3151 |
sb.append('0');
|
|
|
3152 |
if (f.contains(Flags.UPPERCASE))
|
|
|
3153 |
s = s.toUpperCase();
|
|
|
3154 |
sb.append(s);
|
|
|
3155 |
}
|
|
|
3156 |
|
|
|
3157 |
// trailing sign indicator
|
|
|
3158 |
trailingSign(sb, (value.signum() == -1));
|
|
|
3159 |
|
|
|
3160 |
// justify based on width
|
|
|
3161 |
a.append(justify(sb.toString()));
|
|
|
3162 |
}
|
|
|
3163 |
|
|
|
3164 |
private void print(float value, Locale l) throws IOException {
|
|
|
3165 |
print((double) value, l);
|
|
|
3166 |
}
|
|
|
3167 |
|
|
|
3168 |
private void print(double value, Locale l) throws IOException {
|
|
|
3169 |
StringBuilder sb = new StringBuilder();
|
|
|
3170 |
boolean neg = Double.compare(value, 0.0) == -1;
|
|
|
3171 |
|
|
|
3172 |
if (!Double.isNaN(value)) {
|
|
|
3173 |
double v = Math.abs(value);
|
|
|
3174 |
|
|
|
3175 |
// leading sign indicator
|
|
|
3176 |
leadingSign(sb, neg);
|
|
|
3177 |
|
|
|
3178 |
// the value
|
|
|
3179 |
if (!Double.isInfinite(v))
|
|
|
3180 |
print(sb, v, l, f, c, precision, neg);
|
|
|
3181 |
else
|
|
|
3182 |
sb.append(f.contains(Flags.UPPERCASE)
|
|
|
3183 |
? "INFINITY" : "Infinity");
|
|
|
3184 |
|
|
|
3185 |
// trailing sign indicator
|
|
|
3186 |
trailingSign(sb, neg);
|
|
|
3187 |
} else {
|
|
|
3188 |
sb.append(f.contains(Flags.UPPERCASE) ? "NAN" : "NaN");
|
|
|
3189 |
}
|
|
|
3190 |
|
|
|
3191 |
// justify based on width
|
|
|
3192 |
a.append(justify(sb.toString()));
|
|
|
3193 |
}
|
|
|
3194 |
|
|
|
3195 |
// !Double.isInfinite(value) && !Double.isNaN(value)
|
|
|
3196 |
private void print(StringBuilder sb, double value, Locale l,
|
|
|
3197 |
Flags f, char c, int precision, boolean neg)
|
|
|
3198 |
throws IOException
|
|
|
3199 |
{
|
|
|
3200 |
if (c == Conversion.SCIENTIFIC) {
|
|
|
3201 |
// Create a new FormattedFloatingDecimal with the desired
|
|
|
3202 |
// precision.
|
|
|
3203 |
int prec = (precision == -1 ? 6 : precision);
|
|
|
3204 |
|
|
|
3205 |
FormattedFloatingDecimal fd
|
|
|
3206 |
= new FormattedFloatingDecimal(value, prec,
|
|
|
3207 |
FormattedFloatingDecimal.Form.SCIENTIFIC);
|
|
|
3208 |
|
|
|
3209 |
char[] v = new char[MAX_FD_CHARS];
|
|
|
3210 |
int len = fd.getChars(v);
|
|
|
3211 |
|
|
|
3212 |
char[] mant = addZeros(mantissa(v, len), prec);
|
|
|
3213 |
|
|
|
3214 |
// If the precision is zero and the '#' flag is set, add the
|
|
|
3215 |
// requested decimal point.
|
|
|
3216 |
if (f.contains(Flags.ALTERNATE) && (prec == 0))
|
|
|
3217 |
mant = addDot(mant);
|
|
|
3218 |
|
|
|
3219 |
char[] exp = (value == 0.0)
|
|
|
3220 |
? new char[] {'+','0','0'} : exponent(v, len);
|
|
|
3221 |
|
|
|
3222 |
int newW = width;
|
|
|
3223 |
if (width != -1)
|
|
|
3224 |
newW = adjustWidth(width - exp.length - 1, f, neg);
|
|
|
3225 |
localizedMagnitude(sb, mant, f, newW, l);
|
|
|
3226 |
|
|
|
3227 |
sb.append(f.contains(Flags.UPPERCASE) ? 'E' : 'e');
|
|
|
3228 |
|
|
|
3229 |
Flags flags = f.dup().remove(Flags.GROUP);
|
|
|
3230 |
char sign = exp[0];
|
|
|
3231 |
assert(sign == '+' || sign == '-');
|
|
|
3232 |
sb.append(sign);
|
|
|
3233 |
|
|
|
3234 |
char[] tmp = new char[exp.length - 1];
|
|
|
3235 |
System.arraycopy(exp, 1, tmp, 0, exp.length - 1);
|
|
|
3236 |
sb.append(localizedMagnitude(null, tmp, flags, -1, l));
|
|
|
3237 |
} else if (c == Conversion.DECIMAL_FLOAT) {
|
|
|
3238 |
// Create a new FormattedFloatingDecimal with the desired
|
|
|
3239 |
// precision.
|
|
|
3240 |
int prec = (precision == -1 ? 6 : precision);
|
|
|
3241 |
|
|
|
3242 |
FormattedFloatingDecimal fd
|
|
|
3243 |
= new FormattedFloatingDecimal(value, prec,
|
|
|
3244 |
FormattedFloatingDecimal.Form.DECIMAL_FLOAT);
|
|
|
3245 |
|
|
|
3246 |
// MAX_FD_CHARS + 1 (round?)
|
|
|
3247 |
char[] v = new char[MAX_FD_CHARS + 1
|
|
|
3248 |
+ Math.abs(fd.getExponent())];
|
|
|
3249 |
int len = fd.getChars(v);
|
|
|
3250 |
|
|
|
3251 |
char[] mant = addZeros(mantissa(v, len), prec);
|
|
|
3252 |
|
|
|
3253 |
// If the precision is zero and the '#' flag is set, add the
|
|
|
3254 |
// requested decimal point.
|
|
|
3255 |
if (f.contains(Flags.ALTERNATE) && (prec == 0))
|
|
|
3256 |
mant = addDot(mant);
|
|
|
3257 |
|
|
|
3258 |
int newW = width;
|
|
|
3259 |
if (width != -1)
|
|
|
3260 |
newW = adjustWidth(width, f, neg);
|
|
|
3261 |
localizedMagnitude(sb, mant, f, newW, l);
|
|
|
3262 |
} else if (c == Conversion.GENERAL) {
|
|
|
3263 |
int prec = precision;
|
|
|
3264 |
if (precision == -1)
|
|
|
3265 |
prec = 6;
|
|
|
3266 |
else if (precision == 0)
|
|
|
3267 |
prec = 1;
|
|
|
3268 |
|
|
|
3269 |
FormattedFloatingDecimal fd
|
|
|
3270 |
= new FormattedFloatingDecimal(value, prec,
|
|
|
3271 |
FormattedFloatingDecimal.Form.GENERAL);
|
|
|
3272 |
|
|
|
3273 |
// MAX_FD_CHARS + 1 (round?)
|
|
|
3274 |
char[] v = new char[MAX_FD_CHARS + 1
|
|
|
3275 |
+ Math.abs(fd.getExponent())];
|
|
|
3276 |
int len = fd.getChars(v);
|
|
|
3277 |
|
|
|
3278 |
char[] exp = exponent(v, len);
|
|
|
3279 |
if (exp != null) {
|
|
|
3280 |
prec -= 1;
|
|
|
3281 |
} else {
|
|
|
3282 |
prec = prec - (value == 0 ? 0 : fd.getExponentRounded()) - 1;
|
|
|
3283 |
}
|
|
|
3284 |
|
|
|
3285 |
char[] mant = addZeros(mantissa(v, len), prec);
|
|
|
3286 |
// If the precision is zero and the '#' flag is set, add the
|
|
|
3287 |
// requested decimal point.
|
|
|
3288 |
if (f.contains(Flags.ALTERNATE) && (prec == 0))
|
|
|
3289 |
mant = addDot(mant);
|
|
|
3290 |
|
|
|
3291 |
int newW = width;
|
|
|
3292 |
if (width != -1) {
|
|
|
3293 |
if (exp != null)
|
|
|
3294 |
newW = adjustWidth(width - exp.length - 1, f, neg);
|
|
|
3295 |
else
|
|
|
3296 |
newW = adjustWidth(width, f, neg);
|
|
|
3297 |
}
|
|
|
3298 |
localizedMagnitude(sb, mant, f, newW, l);
|
|
|
3299 |
|
|
|
3300 |
if (exp != null) {
|
|
|
3301 |
sb.append(f.contains(Flags.UPPERCASE) ? 'E' : 'e');
|
|
|
3302 |
|
|
|
3303 |
Flags flags = f.dup().remove(Flags.GROUP);
|
|
|
3304 |
char sign = exp[0];
|
|
|
3305 |
assert(sign == '+' || sign == '-');
|
|
|
3306 |
sb.append(sign);
|
|
|
3307 |
|
|
|
3308 |
char[] tmp = new char[exp.length - 1];
|
|
|
3309 |
System.arraycopy(exp, 1, tmp, 0, exp.length - 1);
|
|
|
3310 |
sb.append(localizedMagnitude(null, tmp, flags, -1, l));
|
|
|
3311 |
}
|
|
|
3312 |
} else if (c == Conversion.HEXADECIMAL_FLOAT) {
|
|
|
3313 |
int prec = precision;
|
|
|
3314 |
if (precision == -1)
|
|
|
3315 |
// assume that we want all of the digits
|
|
|
3316 |
prec = 0;
|
|
|
3317 |
else if (precision == 0)
|
|
|
3318 |
prec = 1;
|
|
|
3319 |
|
|
|
3320 |
String s = hexDouble(value, prec);
|
|
|
3321 |
|
|
|
3322 |
char[] va;
|
|
|
3323 |
boolean upper = f.contains(Flags.UPPERCASE);
|
|
|
3324 |
sb.append(upper ? "0X" : "0x");
|
|
|
3325 |
|
|
|
3326 |
if (f.contains(Flags.ZERO_PAD))
|
|
|
3327 |
for (int i = 0; i < width - s.length() - 2; i++)
|
|
|
3328 |
sb.append('0');
|
|
|
3329 |
|
|
|
3330 |
int idx = s.indexOf('p');
|
|
|
3331 |
va = s.substring(0, idx).toCharArray();
|
|
|
3332 |
if (upper) {
|
|
|
3333 |
String tmp = new String(va);
|
|
|
3334 |
// don't localize hex
|
|
|
3335 |
tmp = tmp.toUpperCase(Locale.US);
|
|
|
3336 |
va = tmp.toCharArray();
|
|
|
3337 |
}
|
|
|
3338 |
sb.append(prec != 0 ? addZeros(va, prec) : va);
|
|
|
3339 |
sb.append(upper ? 'P' : 'p');
|
|
|
3340 |
sb.append(s.substring(idx+1));
|
|
|
3341 |
}
|
|
|
3342 |
}
|
|
|
3343 |
|
|
|
3344 |
private char[] mantissa(char[] v, int len) {
|
|
|
3345 |
int i;
|
|
|
3346 |
for (i = 0; i < len; i++) {
|
|
|
3347 |
if (v[i] == 'e')
|
|
|
3348 |
break;
|
|
|
3349 |
}
|
|
|
3350 |
char[] tmp = new char[i];
|
|
|
3351 |
System.arraycopy(v, 0, tmp, 0, i);
|
|
|
3352 |
return tmp;
|
|
|
3353 |
}
|
|
|
3354 |
|
|
|
3355 |
private char[] exponent(char[] v, int len) {
|
|
|
3356 |
int i;
|
|
|
3357 |
for (i = len - 1; i >= 0; i--) {
|
|
|
3358 |
if (v[i] == 'e')
|
|
|
3359 |
break;
|
|
|
3360 |
}
|
|
|
3361 |
if (i == -1)
|
|
|
3362 |
return null;
|
|
|
3363 |
char[] tmp = new char[len - i - 1];
|
|
|
3364 |
System.arraycopy(v, i + 1, tmp, 0, len - i - 1);
|
|
|
3365 |
return tmp;
|
|
|
3366 |
}
|
|
|
3367 |
|
|
|
3368 |
// Add zeros to the requested precision.
|
|
|
3369 |
private char[] addZeros(char[] v, int prec) {
|
|
|
3370 |
// Look for the dot. If we don't find one, the we'll need to add
|
|
|
3371 |
// it before we add the zeros.
|
|
|
3372 |
int i;
|
|
|
3373 |
for (i = 0; i < v.length; i++) {
|
|
|
3374 |
if (v[i] == '.')
|
|
|
3375 |
break;
|
|
|
3376 |
}
|
|
|
3377 |
boolean needDot = false;
|
|
|
3378 |
if (i == v.length) {
|
|
|
3379 |
needDot = true;
|
|
|
3380 |
}
|
|
|
3381 |
|
|
|
3382 |
// Determine existing precision.
|
|
|
3383 |
int outPrec = v.length - i - (needDot ? 0 : 1);
|
|
|
3384 |
assert (outPrec <= prec);
|
|
|
3385 |
if (outPrec == prec)
|
|
|
3386 |
return v;
|
|
|
3387 |
|
|
|
3388 |
// Create new array with existing contents.
|
|
|
3389 |
char[] tmp
|
|
|
3390 |
= new char[v.length + prec - outPrec + (needDot ? 1 : 0)];
|
|
|
3391 |
System.arraycopy(v, 0, tmp, 0, v.length);
|
|
|
3392 |
|
|
|
3393 |
// Add dot if previously determined to be necessary.
|
|
|
3394 |
int start = v.length;
|
|
|
3395 |
if (needDot) {
|
|
|
3396 |
tmp[v.length] = '.';
|
|
|
3397 |
start++;
|
|
|
3398 |
}
|
|
|
3399 |
|
|
|
3400 |
// Add zeros.
|
|
|
3401 |
for (int j = start; j < tmp.length; j++)
|
|
|
3402 |
tmp[j] = '0';
|
|
|
3403 |
|
|
|
3404 |
return tmp;
|
|
|
3405 |
}
|
|
|
3406 |
|
|
|
3407 |
// Method assumes that d > 0.
|
|
|
3408 |
private String hexDouble(double d, int prec) {
|
|
|
3409 |
// Let Double.toHexString handle simple cases
|
|
|
3410 |
if(!FpUtils.isFinite(d) || d == 0.0 || prec == 0 || prec >= 13)
|
|
|
3411 |
// remove "0x"
|
|
|
3412 |
return Double.toHexString(d).substring(2);
|
|
|
3413 |
else {
|
|
|
3414 |
assert(prec >= 1 && prec <= 12);
|
|
|
3415 |
|
|
|
3416 |
int exponent = FpUtils.getExponent(d);
|
|
|
3417 |
boolean subnormal
|
|
|
3418 |
= (exponent == DoubleConsts.MIN_EXPONENT - 1);
|
|
|
3419 |
|
|
|
3420 |
// If this is subnormal input so normalize (could be faster to
|
|
|
3421 |
// do as integer operation).
|
|
|
3422 |
if (subnormal) {
|
|
|
3423 |
scaleUp = FpUtils.scalb(1.0, 54);
|
|
|
3424 |
d *= scaleUp;
|
|
|
3425 |
// Calculate the exponent. This is not just exponent + 54
|
|
|
3426 |
// since the former is not the normalized exponent.
|
|
|
3427 |
exponent = FpUtils.getExponent(d);
|
|
|
3428 |
assert exponent >= DoubleConsts.MIN_EXPONENT &&
|
|
|
3429 |
exponent <= DoubleConsts.MAX_EXPONENT: exponent;
|
|
|
3430 |
}
|
|
|
3431 |
|
|
|
3432 |
int precision = 1 + prec*4;
|
|
|
3433 |
int shiftDistance
|
|
|
3434 |
= DoubleConsts.SIGNIFICAND_WIDTH - precision;
|
|
|
3435 |
assert(shiftDistance >= 1 && shiftDistance < DoubleConsts.SIGNIFICAND_WIDTH);
|
|
|
3436 |
|
|
|
3437 |
long doppel = Double.doubleToLongBits(d);
|
|
|
3438 |
// Deterime the number of bits to keep.
|
|
|
3439 |
long newSignif
|
|
|
3440 |
= (doppel & (DoubleConsts.EXP_BIT_MASK
|
|
|
3441 |
| DoubleConsts.SIGNIF_BIT_MASK))
|
|
|
3442 |
>> shiftDistance;
|
|
|
3443 |
// Bits to round away.
|
|
|
3444 |
long roundingBits = doppel & ~(~0L << shiftDistance);
|
|
|
3445 |
|
|
|
3446 |
// To decide how to round, look at the low-order bit of the
|
|
|
3447 |
// working significand, the highest order discarded bit (the
|
|
|
3448 |
// round bit) and whether any of the lower order discarded bits
|
|
|
3449 |
// are nonzero (the sticky bit).
|
|
|
3450 |
|
|
|
3451 |
boolean leastZero = (newSignif & 0x1L) == 0L;
|
|
|
3452 |
boolean round
|
|
|
3453 |
= ((1L << (shiftDistance - 1) ) & roundingBits) != 0L;
|
|
|
3454 |
boolean sticky = shiftDistance > 1 &&
|
|
|
3455 |
(~(1L<< (shiftDistance - 1)) & roundingBits) != 0;
|
|
|
3456 |
if((leastZero && round && sticky) || (!leastZero && round)) {
|
|
|
3457 |
newSignif++;
|
|
|
3458 |
}
|
|
|
3459 |
|
|
|
3460 |
long signBit = doppel & DoubleConsts.SIGN_BIT_MASK;
|
|
|
3461 |
newSignif = signBit | (newSignif << shiftDistance);
|
|
|
3462 |
double result = Double.longBitsToDouble(newSignif);
|
|
|
3463 |
|
|
|
3464 |
if (Double.isInfinite(result) ) {
|
|
|
3465 |
// Infinite result generated by rounding
|
|
|
3466 |
return "1.0p1024";
|
|
|
3467 |
} else {
|
|
|
3468 |
String res = Double.toHexString(result).substring(2);
|
|
|
3469 |
if (!subnormal)
|
|
|
3470 |
return res;
|
|
|
3471 |
else {
|
|
|
3472 |
// Create a normalized subnormal string.
|
|
|
3473 |
int idx = res.indexOf('p');
|
|
|
3474 |
if (idx == -1) {
|
|
|
3475 |
// No 'p' character in hex string.
|
|
|
3476 |
assert false;
|
|
|
3477 |
return null;
|
|
|
3478 |
} else {
|
|
|
3479 |
// Get exponent and append at the end.
|
|
|
3480 |
String exp = res.substring(idx + 1);
|
|
|
3481 |
int iexp = Integer.parseInt(exp) -54;
|
|
|
3482 |
return res.substring(0, idx) + "p"
|
|
|
3483 |
+ Integer.toString(iexp);
|
|
|
3484 |
}
|
|
|
3485 |
}
|
|
|
3486 |
}
|
|
|
3487 |
}
|
|
|
3488 |
}
|
|
|
3489 |
|
|
|
3490 |
private void print(BigDecimal value, Locale l) throws IOException {
|
|
|
3491 |
if (c == Conversion.HEXADECIMAL_FLOAT)
|
|
|
3492 |
failConversion(c, value);
|
|
|
3493 |
StringBuilder sb = new StringBuilder();
|
|
|
3494 |
boolean neg = value.signum() == -1;
|
|
|
3495 |
BigDecimal v = value.abs();
|
|
|
3496 |
// leading sign indicator
|
|
|
3497 |
leadingSign(sb, neg);
|
|
|
3498 |
|
|
|
3499 |
// the value
|
|
|
3500 |
print(sb, v, l, f, c, precision, neg);
|
|
|
3501 |
|
|
|
3502 |
// trailing sign indicator
|
|
|
3503 |
trailingSign(sb, neg);
|
|
|
3504 |
|
|
|
3505 |
// justify based on width
|
|
|
3506 |
a.append(justify(sb.toString()));
|
|
|
3507 |
}
|
|
|
3508 |
|
|
|
3509 |
// value > 0
|
|
|
3510 |
private void print(StringBuilder sb, BigDecimal value, Locale l,
|
|
|
3511 |
Flags f, char c, int precision, boolean neg)
|
|
|
3512 |
throws IOException
|
|
|
3513 |
{
|
|
|
3514 |
if (c == Conversion.SCIENTIFIC) {
|
|
|
3515 |
// Create a new BigDecimal with the desired precision.
|
|
|
3516 |
int prec = (precision == -1 ? 6 : precision);
|
|
|
3517 |
int scale = value.scale();
|
|
|
3518 |
int origPrec = value.precision();
|
|
|
3519 |
int nzeros = 0;
|
|
|
3520 |
int compPrec;
|
|
|
3521 |
|
|
|
3522 |
if (prec > origPrec - 1) {
|
|
|
3523 |
compPrec = origPrec;
|
|
|
3524 |
nzeros = prec - (origPrec - 1);
|
|
|
3525 |
} else {
|
|
|
3526 |
compPrec = prec + 1;
|
|
|
3527 |
}
|
|
|
3528 |
|
|
|
3529 |
MathContext mc = new MathContext(compPrec);
|
|
|
3530 |
BigDecimal v
|
|
|
3531 |
= new BigDecimal(value.unscaledValue(), scale, mc);
|
|
|
3532 |
|
|
|
3533 |
BigDecimalLayout bdl
|
|
|
3534 |
= new BigDecimalLayout(v.unscaledValue(), v.scale(),
|
|
|
3535 |
BigDecimalLayoutForm.SCIENTIFIC);
|
|
|
3536 |
|
|
|
3537 |
char[] mant = bdl.mantissa();
|
|
|
3538 |
|
|
|
3539 |
// Add a decimal point if necessary. The mantissa may not
|
|
|
3540 |
// contain a decimal point if the scale is zero (the internal
|
|
|
3541 |
// representation has no fractional part) or the original
|
|
|
3542 |
// precision is one. Append a decimal point if '#' is set or if
|
|
|
3543 |
// we require zero padding to get to the requested precision.
|
|
|
3544 |
if ((origPrec == 1 || !bdl.hasDot())
|
|
|
3545 |
&& (nzeros > 0 || (f.contains(Flags.ALTERNATE))))
|
|
|
3546 |
mant = addDot(mant);
|
|
|
3547 |
|
|
|
3548 |
// Add trailing zeros in the case precision is greater than
|
|
|
3549 |
// the number of available digits after the decimal separator.
|
|
|
3550 |
mant = trailingZeros(mant, nzeros);
|
|
|
3551 |
|
|
|
3552 |
char[] exp = bdl.exponent();
|
|
|
3553 |
int newW = width;
|
|
|
3554 |
if (width != -1)
|
|
|
3555 |
newW = adjustWidth(width - exp.length - 1, f, neg);
|
|
|
3556 |
localizedMagnitude(sb, mant, f, newW, l);
|
|
|
3557 |
|
|
|
3558 |
sb.append(f.contains(Flags.UPPERCASE) ? 'E' : 'e');
|
|
|
3559 |
|
|
|
3560 |
Flags flags = f.dup().remove(Flags.GROUP);
|
|
|
3561 |
char sign = exp[0];
|
|
|
3562 |
assert(sign == '+' || sign == '-');
|
|
|
3563 |
sb.append(exp[0]);
|
|
|
3564 |
|
|
|
3565 |
char[] tmp = new char[exp.length - 1];
|
|
|
3566 |
System.arraycopy(exp, 1, tmp, 0, exp.length - 1);
|
|
|
3567 |
sb.append(localizedMagnitude(null, tmp, flags, -1, l));
|
|
|
3568 |
} else if (c == Conversion.DECIMAL_FLOAT) {
|
|
|
3569 |
// Create a new BigDecimal with the desired precision.
|
|
|
3570 |
int prec = (precision == -1 ? 6 : precision);
|
|
|
3571 |
int scale = value.scale();
|
|
|
3572 |
int compPrec = value.precision();
|
|
|
3573 |
if (scale > prec)
|
|
|
3574 |
compPrec -= (scale - prec);
|
|
|
3575 |
MathContext mc = new MathContext(compPrec);
|
|
|
3576 |
BigDecimal v
|
|
|
3577 |
= new BigDecimal(value.unscaledValue(), scale, mc);
|
|
|
3578 |
|
|
|
3579 |
BigDecimalLayout bdl
|
|
|
3580 |
= new BigDecimalLayout(v.unscaledValue(), v.scale(),
|
|
|
3581 |
BigDecimalLayoutForm.DECIMAL_FLOAT);
|
|
|
3582 |
|
|
|
3583 |
char mant[] = bdl.mantissa();
|
|
|
3584 |
int nzeros = (bdl.scale() < prec ? prec - bdl.scale() : 0);
|
|
|
3585 |
|
|
|
3586 |
// Add a decimal point if necessary. The mantissa may not
|
|
|
3587 |
// contain a decimal point if the scale is zero (the internal
|
|
|
3588 |
// representation has no fractional part). Append a decimal
|
|
|
3589 |
// point if '#' is set or we require zero padding to get to the
|
|
|
3590 |
// requested precision.
|
|
|
3591 |
if (bdl.scale() == 0 && (f.contains(Flags.ALTERNATE) || nzeros > 0))
|
|
|
3592 |
mant = addDot(bdl.mantissa());
|
|
|
3593 |
|
|
|
3594 |
// Add trailing zeros if the precision is greater than the
|
|
|
3595 |
// number of available digits after the decimal separator.
|
|
|
3596 |
mant = trailingZeros(mant, nzeros);
|
|
|
3597 |
|
|
|
3598 |
localizedMagnitude(sb, mant, f, adjustWidth(width, f, neg), l);
|
|
|
3599 |
} else if (c == Conversion.GENERAL) {
|
|
|
3600 |
int prec = precision;
|
|
|
3601 |
if (precision == -1)
|
|
|
3602 |
prec = 6;
|
|
|
3603 |
else if (precision == 0)
|
|
|
3604 |
prec = 1;
|
|
|
3605 |
|
|
|
3606 |
BigDecimal tenToTheNegFour = BigDecimal.valueOf(1, 4);
|
|
|
3607 |
BigDecimal tenToThePrec = BigDecimal.valueOf(1, -prec);
|
|
|
3608 |
if ((value.equals(BigDecimal.ZERO))
|
|
|
3609 |
|| ((value.compareTo(tenToTheNegFour) != -1)
|
|
|
3610 |
&& (value.compareTo(tenToThePrec) == -1))) {
|
|
|
3611 |
|
|
|
3612 |
int e = - value.scale()
|
|
|
3613 |
+ (value.unscaledValue().toString().length() - 1);
|
|
|
3614 |
|
|
|
3615 |
// xxx.yyy
|
|
|
3616 |
// g precision (# sig digits) = #x + #y
|
|
|
3617 |
// f precision = #y
|
|
|
3618 |
// exponent = #x - 1
|
|
|
3619 |
// => f precision = g precision - exponent - 1
|
|
|
3620 |
// 0.000zzz
|
|
|
3621 |
// g precision (# sig digits) = #z
|
|
|
3622 |
// f precision = #0 (after '.') + #z
|
|
|
3623 |
// exponent = - #0 (after '.') - 1
|
|
|
3624 |
// => f precision = g precision - exponent - 1
|
|
|
3625 |
prec = prec - e - 1;
|
|
|
3626 |
|
|
|
3627 |
print(sb, value, l, f, Conversion.DECIMAL_FLOAT, prec,
|
|
|
3628 |
neg);
|
|
|
3629 |
} else {
|
|
|
3630 |
print(sb, value, l, f, Conversion.SCIENTIFIC, prec - 1, neg);
|
|
|
3631 |
}
|
|
|
3632 |
} else if (c == Conversion.HEXADECIMAL_FLOAT) {
|
|
|
3633 |
// This conversion isn't supported. The error should be
|
|
|
3634 |
// reported earlier.
|
|
|
3635 |
assert false;
|
|
|
3636 |
}
|
|
|
3637 |
}
|
|
|
3638 |
|
|
|
3639 |
private class BigDecimalLayout {
|
|
|
3640 |
private StringBuilder mant;
|
|
|
3641 |
private StringBuilder exp;
|
|
|
3642 |
private boolean dot = false;
|
|
|
3643 |
private int scale;
|
|
|
3644 |
|
|
|
3645 |
public BigDecimalLayout(BigInteger intVal, int scale, BigDecimalLayoutForm form) {
|
|
|
3646 |
layout(intVal, scale, form);
|
|
|
3647 |
}
|
|
|
3648 |
|
|
|
3649 |
public boolean hasDot() {
|
|
|
3650 |
return dot;
|
|
|
3651 |
}
|
|
|
3652 |
|
|
|
3653 |
public int scale() {
|
|
|
3654 |
return scale;
|
|
|
3655 |
}
|
|
|
3656 |
|
|
|
3657 |
// char[] with canonical string representation
|
|
|
3658 |
public char[] layoutChars() {
|
|
|
3659 |
StringBuilder sb = new StringBuilder(mant);
|
|
|
3660 |
if (exp != null) {
|
|
|
3661 |
sb.append('E');
|
|
|
3662 |
sb.append(exp);
|
|
|
3663 |
}
|
|
|
3664 |
return toCharArray(sb);
|
|
|
3665 |
}
|
|
|
3666 |
|
|
|
3667 |
public char[] mantissa() {
|
|
|
3668 |
return toCharArray(mant);
|
|
|
3669 |
}
|
|
|
3670 |
|
|
|
3671 |
// The exponent will be formatted as a sign ('+' or '-') followed
|
|
|
3672 |
// by the exponent zero-padded to include at least two digits.
|
|
|
3673 |
public char[] exponent() {
|
|
|
3674 |
return toCharArray(exp);
|
|
|
3675 |
}
|
|
|
3676 |
|
|
|
3677 |
private char[] toCharArray(StringBuilder sb) {
|
|
|
3678 |
if (sb == null)
|
|
|
3679 |
return null;
|
|
|
3680 |
char[] result = new char[sb.length()];
|
|
|
3681 |
sb.getChars(0, result.length, result, 0);
|
|
|
3682 |
return result;
|
|
|
3683 |
}
|
|
|
3684 |
|
|
|
3685 |
private void layout(BigInteger intVal, int scale, BigDecimalLayoutForm form) {
|
|
|
3686 |
char coeff[] = intVal.toString().toCharArray();
|
|
|
3687 |
this.scale = scale;
|
|
|
3688 |
|
|
|
3689 |
// Construct a buffer, with sufficient capacity for all cases.
|
|
|
3690 |
// If E-notation is needed, length will be: +1 if negative, +1
|
|
|
3691 |
// if '.' needed, +2 for "E+", + up to 10 for adjusted
|
|
|
3692 |
// exponent. Otherwise it could have +1 if negative, plus
|
|
|
3693 |
// leading "0.00000"
|
|
|
3694 |
mant = new StringBuilder(coeff.length + 14);
|
|
|
3695 |
|
|
|
3696 |
if (scale == 0) {
|
|
|
3697 |
int len = coeff.length;
|
|
|
3698 |
if (len > 1) {
|
|
|
3699 |
mant.append(coeff[0]);
|
|
|
3700 |
if (form == BigDecimalLayoutForm.SCIENTIFIC) {
|
|
|
3701 |
mant.append('.');
|
|
|
3702 |
dot = true;
|
|
|
3703 |
mant.append(coeff, 1, len - 1);
|
|
|
3704 |
exp = new StringBuilder("+");
|
|
|
3705 |
if (len < 10)
|
|
|
3706 |
exp.append("0").append(len - 1);
|
|
|
3707 |
else
|
|
|
3708 |
exp.append(len - 1);
|
|
|
3709 |
} else {
|
|
|
3710 |
mant.append(coeff, 1, len - 1);
|
|
|
3711 |
}
|
|
|
3712 |
} else {
|
|
|
3713 |
mant.append(coeff);
|
|
|
3714 |
if (form == BigDecimalLayoutForm.SCIENTIFIC)
|
|
|
3715 |
exp = new StringBuilder("+00");
|
|
|
3716 |
}
|
|
|
3717 |
return;
|
|
|
3718 |
}
|
|
|
3719 |
long adjusted = -(long) scale + (coeff.length - 1);
|
|
|
3720 |
if (form == BigDecimalLayoutForm.DECIMAL_FLOAT) {
|
|
|
3721 |
// count of padding zeros
|
|
|
3722 |
int pad = scale - coeff.length;
|
|
|
3723 |
if (pad >= 0) {
|
|
|
3724 |
// 0.xxx form
|
|
|
3725 |
mant.append("0.");
|
|
|
3726 |
dot = true;
|
|
|
3727 |
for (; pad > 0 ; pad--) mant.append('0');
|
|
|
3728 |
mant.append(coeff);
|
|
|
3729 |
} else {
|
|
|
3730 |
if (-pad < coeff.length) {
|
|
|
3731 |
// xx.xx form
|
|
|
3732 |
mant.append(coeff, 0, -pad);
|
|
|
3733 |
mant.append('.');
|
|
|
3734 |
dot = true;
|
|
|
3735 |
mant.append(coeff, -pad, scale);
|
|
|
3736 |
} else {
|
|
|
3737 |
// xx form
|
|
|
3738 |
mant.append(coeff, 0, coeff.length);
|
|
|
3739 |
for (int i = 0; i < -scale; i++)
|
|
|
3740 |
mant.append('0');
|
|
|
3741 |
this.scale = 0;
|
|
|
3742 |
}
|
|
|
3743 |
}
|
|
|
3744 |
} else {
|
|
|
3745 |
// x.xxx form
|
|
|
3746 |
mant.append(coeff[0]);
|
|
|
3747 |
if (coeff.length > 1) {
|
|
|
3748 |
mant.append('.');
|
|
|
3749 |
dot = true;
|
|
|
3750 |
mant.append(coeff, 1, coeff.length-1);
|
|
|
3751 |
}
|
|
|
3752 |
exp = new StringBuilder();
|
|
|
3753 |
if (adjusted != 0) {
|
|
|
3754 |
long abs = Math.abs(adjusted);
|
|
|
3755 |
// require sign
|
|
|
3756 |
exp.append(adjusted < 0 ? '-' : '+');
|
|
|
3757 |
if (abs < 10)
|
|
|
3758 |
exp.append('0');
|
|
|
3759 |
exp.append(abs);
|
|
|
3760 |
} else {
|
|
|
3761 |
exp.append("+00");
|
|
|
3762 |
}
|
|
|
3763 |
}
|
|
|
3764 |
}
|
|
|
3765 |
}
|
|
|
3766 |
|
|
|
3767 |
private int adjustWidth(int width, Flags f, boolean neg) {
|
|
|
3768 |
int newW = width;
|
|
|
3769 |
if (newW != -1 && neg && f.contains(Flags.PARENTHESES))
|
|
|
3770 |
newW--;
|
|
|
3771 |
return newW;
|
|
|
3772 |
}
|
|
|
3773 |
|
|
|
3774 |
// Add a '.' to th mantissa if required
|
|
|
3775 |
private char[] addDot(char[] mant) {
|
|
|
3776 |
char[] tmp = mant;
|
|
|
3777 |
tmp = new char[mant.length + 1];
|
|
|
3778 |
System.arraycopy(mant, 0, tmp, 0, mant.length);
|
|
|
3779 |
tmp[tmp.length - 1] = '.';
|
|
|
3780 |
return tmp;
|
|
|
3781 |
}
|
|
|
3782 |
|
|
|
3783 |
// Add trailing zeros in the case precision is greater than the number
|
|
|
3784 |
// of available digits after the decimal separator.
|
|
|
3785 |
private char[] trailingZeros(char[] mant, int nzeros) {
|
|
|
3786 |
char[] tmp = mant;
|
|
|
3787 |
if (nzeros > 0) {
|
|
|
3788 |
tmp = new char[mant.length + nzeros];
|
|
|
3789 |
System.arraycopy(mant, 0, tmp, 0, mant.length);
|
|
|
3790 |
for (int i = mant.length; i < tmp.length; i++)
|
|
|
3791 |
tmp[i] = '0';
|
|
|
3792 |
}
|
|
|
3793 |
return tmp;
|
|
|
3794 |
}
|
|
|
3795 |
|
|
|
3796 |
private void print(Calendar t, char c, Locale l) throws IOException
|
|
|
3797 |
{
|
|
|
3798 |
StringBuilder sb = new StringBuilder();
|
|
|
3799 |
print(sb, t, c, l);
|
|
|
3800 |
|
|
|
3801 |
// justify based on width
|
|
|
3802 |
String s = justify(sb.toString());
|
|
|
3803 |
if (f.contains(Flags.UPPERCASE))
|
|
|
3804 |
s = s.toUpperCase();
|
|
|
3805 |
|
|
|
3806 |
a.append(s);
|
|
|
3807 |
}
|
|
|
3808 |
|
|
|
3809 |
private Appendable print(StringBuilder sb, Calendar t, char c,
|
|
|
3810 |
Locale l)
|
|
|
3811 |
throws IOException
|
|
|
3812 |
{
|
|
|
3813 |
assert(width == -1);
|
|
|
3814 |
if (sb == null)
|
|
|
3815 |
sb = new StringBuilder();
|
|
|
3816 |
switch (c) {
|
|
|
3817 |
case DateTime.HOUR_OF_DAY_0: // 'H' (00 - 23)
|
|
|
3818 |
case DateTime.HOUR_0: // 'I' (01 - 12)
|
|
|
3819 |
case DateTime.HOUR_OF_DAY: // 'k' (0 - 23) -- like H
|
|
|
3820 |
case DateTime.HOUR: { // 'l' (1 - 12) -- like I
|
|
|
3821 |
int i = t.get(Calendar.HOUR_OF_DAY);
|
|
|
3822 |
if (c == DateTime.HOUR_0 || c == DateTime.HOUR)
|
|
|
3823 |
i = (i == 0 || i == 12 ? 12 : i % 12);
|
|
|
3824 |
Flags flags = (c == DateTime.HOUR_OF_DAY_0
|
|
|
3825 |
|| c == DateTime.HOUR_0
|
|
|
3826 |
? Flags.ZERO_PAD
|
|
|
3827 |
: Flags.NONE);
|
|
|
3828 |
sb.append(localizedMagnitude(null, i, flags, 2, l));
|
|
|
3829 |
break;
|
|
|
3830 |
}
|
|
|
3831 |
case DateTime.MINUTE: { // 'M' (00 - 59)
|
|
|
3832 |
int i = t.get(Calendar.MINUTE);
|
|
|
3833 |
Flags flags = Flags.ZERO_PAD;
|
|
|
3834 |
sb.append(localizedMagnitude(null, i, flags, 2, l));
|
|
|
3835 |
break;
|
|
|
3836 |
}
|
|
|
3837 |
case DateTime.NANOSECOND: { // 'N' (000000000 - 999999999)
|
|
|
3838 |
int i = t.get(Calendar.MILLISECOND) * 1000000;
|
|
|
3839 |
Flags flags = Flags.ZERO_PAD;
|
|
|
3840 |
sb.append(localizedMagnitude(null, i, flags, 9, l));
|
|
|
3841 |
break;
|
|
|
3842 |
}
|
|
|
3843 |
case DateTime.MILLISECOND: { // 'L' (000 - 999)
|
|
|
3844 |
int i = t.get(Calendar.MILLISECOND);
|
|
|
3845 |
Flags flags = Flags.ZERO_PAD;
|
|
|
3846 |
sb.append(localizedMagnitude(null, i, flags, 3, l));
|
|
|
3847 |
break;
|
|
|
3848 |
}
|
|
|
3849 |
case DateTime.MILLISECOND_SINCE_EPOCH: { // 'Q' (0 - 99...?)
|
|
|
3850 |
long i = t.getTimeInMillis();
|
|
|
3851 |
Flags flags = Flags.NONE;
|
|
|
3852 |
sb.append(localizedMagnitude(null, i, flags, width, l));
|
|
|
3853 |
break;
|
|
|
3854 |
}
|
|
|
3855 |
case DateTime.AM_PM: { // 'p' (am or pm)
|
|
|
3856 |
// Calendar.AM = 0, Calendar.PM = 1, LocaleElements defines upper
|
|
|
3857 |
String[] ampm = { "AM", "PM" };
|
|
|
3858 |
if (l != null && l != Locale.US) {
|
|
|
3859 |
DateFormatSymbols dfs = DateFormatSymbols.getInstance(l);
|
|
|
3860 |
ampm = dfs.getAmPmStrings();
|
|
|
3861 |
}
|
|
|
3862 |
String s = ampm[t.get(Calendar.AM_PM)];
|
|
|
3863 |
sb.append(s.toLowerCase(l != null ? l : Locale.US));
|
|
|
3864 |
break;
|
|
|
3865 |
}
|
|
|
3866 |
case DateTime.SECONDS_SINCE_EPOCH: { // 's' (0 - 99...?)
|
|
|
3867 |
long i = t.getTimeInMillis() / 1000;
|
|
|
3868 |
Flags flags = Flags.NONE;
|
|
|
3869 |
sb.append(localizedMagnitude(null, i, flags, width, l));
|
|
|
3870 |
break;
|
|
|
3871 |
}
|
|
|
3872 |
case DateTime.SECOND: { // 'S' (00 - 60 - leap second)
|
|
|
3873 |
int i = t.get(Calendar.SECOND);
|
|
|
3874 |
Flags flags = Flags.ZERO_PAD;
|
|
|
3875 |
sb.append(localizedMagnitude(null, i, flags, 2, l));
|
|
|
3876 |
break;
|
|
|
3877 |
}
|
|
|
3878 |
case DateTime.ZONE_NUMERIC: { // 'z' ({-|+}####) - ls minus?
|
|
|
3879 |
int i = t.get(Calendar.ZONE_OFFSET) + t.get(Calendar.DST_OFFSET);
|
|
|
3880 |
boolean neg = i < 0;
|
|
|
3881 |
sb.append(neg ? '-' : '+');
|
|
|
3882 |
if (neg)
|
|
|
3883 |
i = -i;
|
|
|
3884 |
int min = i / 60000;
|
|
|
3885 |
// combine minute and hour into a single integer
|
|
|
3886 |
int offset = (min / 60) * 100 + (min % 60);
|
|
|
3887 |
Flags flags = Flags.ZERO_PAD;
|
|
|
3888 |
|
|
|
3889 |
sb.append(localizedMagnitude(null, offset, flags, 4, l));
|
|
|
3890 |
break;
|
|
|
3891 |
}
|
|
|
3892 |
case DateTime.ZONE: { // 'Z' (symbol)
|
|
|
3893 |
TimeZone tz = t.getTimeZone();
|
|
|
3894 |
sb.append(tz.getDisplayName((t.get(Calendar.DST_OFFSET) != 0),
|
|
|
3895 |
TimeZone.SHORT,
|
|
|
3896 |
(l == null) ? Locale.US : l));
|
|
|
3897 |
break;
|
|
|
3898 |
}
|
|
|
3899 |
|
|
|
3900 |
// Date
|
|
|
3901 |
case DateTime.NAME_OF_DAY_ABBREV: // 'a'
|
|
|
3902 |
case DateTime.NAME_OF_DAY: { // 'A'
|
|
|
3903 |
int i = t.get(Calendar.DAY_OF_WEEK);
|
|
|
3904 |
Locale lt = ((l == null) ? Locale.US : l);
|
|
|
3905 |
DateFormatSymbols dfs = DateFormatSymbols.getInstance(lt);
|
|
|
3906 |
if (c == DateTime.NAME_OF_DAY)
|
|
|
3907 |
sb.append(dfs.getWeekdays()[i]);
|
|
|
3908 |
else
|
|
|
3909 |
sb.append(dfs.getShortWeekdays()[i]);
|
|
|
3910 |
break;
|
|
|
3911 |
}
|
|
|
3912 |
case DateTime.NAME_OF_MONTH_ABBREV: // 'b'
|
|
|
3913 |
case DateTime.NAME_OF_MONTH_ABBREV_X: // 'h' -- same b
|
|
|
3914 |
case DateTime.NAME_OF_MONTH: { // 'B'
|
|
|
3915 |
int i = t.get(Calendar.MONTH);
|
|
|
3916 |
Locale lt = ((l == null) ? Locale.US : l);
|
|
|
3917 |
DateFormatSymbols dfs = DateFormatSymbols.getInstance(lt);
|
|
|
3918 |
if (c == DateTime.NAME_OF_MONTH)
|
|
|
3919 |
sb.append(dfs.getMonths()[i]);
|
|
|
3920 |
else
|
|
|
3921 |
sb.append(dfs.getShortMonths()[i]);
|
|
|
3922 |
break;
|
|
|
3923 |
}
|
|
|
3924 |
case DateTime.CENTURY: // 'C' (00 - 99)
|
|
|
3925 |
case DateTime.YEAR_2: // 'y' (00 - 99)
|
|
|
3926 |
case DateTime.YEAR_4: { // 'Y' (0000 - 9999)
|
|
|
3927 |
int i = t.get(Calendar.YEAR);
|
|
|
3928 |
int size = 2;
|
|
|
3929 |
switch (c) {
|
|
|
3930 |
case DateTime.CENTURY:
|
|
|
3931 |
i /= 100;
|
|
|
3932 |
break;
|
|
|
3933 |
case DateTime.YEAR_2:
|
|
|
3934 |
i %= 100;
|
|
|
3935 |
break;
|
|
|
3936 |
case DateTime.YEAR_4:
|
|
|
3937 |
size = 4;
|
|
|
3938 |
break;
|
|
|
3939 |
}
|
|
|
3940 |
Flags flags = Flags.ZERO_PAD;
|
|
|
3941 |
sb.append(localizedMagnitude(null, i, flags, size, l));
|
|
|
3942 |
break;
|
|
|
3943 |
}
|
|
|
3944 |
case DateTime.DAY_OF_MONTH_0: // 'd' (01 - 31)
|
|
|
3945 |
case DateTime.DAY_OF_MONTH: { // 'e' (1 - 31) -- like d
|
|
|
3946 |
int i = t.get(Calendar.DATE);
|
|
|
3947 |
Flags flags = (c == DateTime.DAY_OF_MONTH_0
|
|
|
3948 |
? Flags.ZERO_PAD
|
|
|
3949 |
: Flags.NONE);
|
|
|
3950 |
sb.append(localizedMagnitude(null, i, flags, 2, l));
|
|
|
3951 |
break;
|
|
|
3952 |
}
|
|
|
3953 |
case DateTime.DAY_OF_YEAR: { // 'j' (001 - 366)
|
|
|
3954 |
int i = t.get(Calendar.DAY_OF_YEAR);
|
|
|
3955 |
Flags flags = Flags.ZERO_PAD;
|
|
|
3956 |
sb.append(localizedMagnitude(null, i, flags, 3, l));
|
|
|
3957 |
break;
|
|
|
3958 |
}
|
|
|
3959 |
case DateTime.MONTH: { // 'm' (01 - 12)
|
|
|
3960 |
int i = t.get(Calendar.MONTH) + 1;
|
|
|
3961 |
Flags flags = Flags.ZERO_PAD;
|
|
|
3962 |
sb.append(localizedMagnitude(null, i, flags, 2, l));
|
|
|
3963 |
break;
|
|
|
3964 |
}
|
|
|
3965 |
|
|
|
3966 |
// Composites
|
|
|
3967 |
case DateTime.TIME: // 'T' (24 hour hh:mm:ss - %tH:%tM:%tS)
|
|
|
3968 |
case DateTime.TIME_24_HOUR: { // 'R' (hh:mm same as %H:%M)
|
|
|
3969 |
char sep = ':';
|
|
|
3970 |
print(sb, t, DateTime.HOUR_OF_DAY_0, l).append(sep);
|
|
|
3971 |
print(sb, t, DateTime.MINUTE, l);
|
|
|
3972 |
if (c == DateTime.TIME) {
|
|
|
3973 |
sb.append(sep);
|
|
|
3974 |
print(sb, t, DateTime.SECOND, l);
|
|
|
3975 |
}
|
|
|
3976 |
break;
|
|
|
3977 |
}
|
|
|
3978 |
case DateTime.TIME_12_HOUR: { // 'r' (hh:mm:ss [AP]M)
|
|
|
3979 |
char sep = ':';
|
|
|
3980 |
print(sb, t, DateTime.HOUR_0, l).append(sep);
|
|
|
3981 |
print(sb, t, DateTime.MINUTE, l).append(sep);
|
|
|
3982 |
print(sb, t, DateTime.SECOND, l).append(' ');
|
|
|
3983 |
// this may be in wrong place for some locales
|
|
|
3984 |
StringBuilder tsb = new StringBuilder();
|
|
|
3985 |
print(tsb, t, DateTime.AM_PM, l);
|
|
|
3986 |
sb.append(tsb.toString().toUpperCase(l != null ? l : Locale.US));
|
|
|
3987 |
break;
|
|
|
3988 |
}
|
|
|
3989 |
case DateTime.DATE_TIME: { // 'c' (Sat Nov 04 12:02:33 EST 1999)
|
|
|
3990 |
char sep = ' ';
|
|
|
3991 |
print(sb, t, DateTime.NAME_OF_DAY_ABBREV, l).append(sep);
|
|
|
3992 |
print(sb, t, DateTime.NAME_OF_MONTH_ABBREV, l).append(sep);
|
|
|
3993 |
print(sb, t, DateTime.DAY_OF_MONTH_0, l).append(sep);
|
|
|
3994 |
print(sb, t, DateTime.TIME, l).append(sep);
|
|
|
3995 |
print(sb, t, DateTime.ZONE, l).append(sep);
|
|
|
3996 |
print(sb, t, DateTime.YEAR_4, l);
|
|
|
3997 |
break;
|
|
|
3998 |
}
|
|
|
3999 |
case DateTime.DATE: { // 'D' (mm/dd/yy)
|
|
|
4000 |
char sep = '/';
|
|
|
4001 |
print(sb, t, DateTime.MONTH, l).append(sep);
|
|
|
4002 |
print(sb, t, DateTime.DAY_OF_MONTH_0, l).append(sep);
|
|
|
4003 |
print(sb, t, DateTime.YEAR_2, l);
|
|
|
4004 |
break;
|
|
|
4005 |
}
|
|
|
4006 |
case DateTime.ISO_STANDARD_DATE: { // 'F' (%Y-%m-%d)
|
|
|
4007 |
char sep = '-';
|
|
|
4008 |
print(sb, t, DateTime.YEAR_4, l).append(sep);
|
|
|
4009 |
print(sb, t, DateTime.MONTH, l).append(sep);
|
|
|
4010 |
print(sb, t, DateTime.DAY_OF_MONTH_0, l);
|
|
|
4011 |
break;
|
|
|
4012 |
}
|
|
|
4013 |
default:
|
|
|
4014 |
assert false;
|
|
|
4015 |
}
|
|
|
4016 |
return sb;
|
|
|
4017 |
}
|
|
|
4018 |
|
|
|
4019 |
// -- Methods to support throwing exceptions --
|
|
|
4020 |
|
|
|
4021 |
private void failMismatch(Flags f, char c) {
|
|
|
4022 |
String fs = f.toString();
|
|
|
4023 |
throw new FormatFlagsConversionMismatchException(fs, c);
|
|
|
4024 |
}
|
|
|
4025 |
|
|
|
4026 |
private void failConversion(char c, Object arg) {
|
|
|
4027 |
throw new IllegalFormatConversionException(c, arg.getClass());
|
|
|
4028 |
}
|
|
|
4029 |
|
|
|
4030 |
private char getZero(Locale l) {
|
|
|
4031 |
if ((l != null) && !l.equals(locale())) {
|
|
|
4032 |
DecimalFormatSymbols dfs = DecimalFormatSymbols.getInstance(l);
|
|
|
4033 |
return dfs.getZeroDigit();
|
|
|
4034 |
}
|
|
|
4035 |
return zero;
|
|
|
4036 |
}
|
|
|
4037 |
|
|
|
4038 |
private StringBuilder
|
|
|
4039 |
localizedMagnitude(StringBuilder sb, long value, Flags f,
|
|
|
4040 |
int width, Locale l)
|
|
|
4041 |
{
|
|
|
4042 |
char[] va = Long.toString(value, 10).toCharArray();
|
|
|
4043 |
return localizedMagnitude(sb, va, f, width, l);
|
|
|
4044 |
}
|
|
|
4045 |
|
|
|
4046 |
private StringBuilder
|
|
|
4047 |
localizedMagnitude(StringBuilder sb, char[] value, Flags f,
|
|
|
4048 |
int width, Locale l)
|
|
|
4049 |
{
|
|
|
4050 |
if (sb == null)
|
|
|
4051 |
sb = new StringBuilder();
|
|
|
4052 |
int begin = sb.length();
|
|
|
4053 |
|
|
|
4054 |
char zero = getZero(l);
|
|
|
4055 |
|
|
|
4056 |
// determine localized grouping separator and size
|
|
|
4057 |
char grpSep = '\0';
|
|
|
4058 |
int grpSize = -1;
|
|
|
4059 |
char decSep = '\0';
|
|
|
4060 |
|
|
|
4061 |
int len = value.length;
|
|
|
4062 |
int dot = len;
|
|
|
4063 |
for (int j = 0; j < len; j++) {
|
|
|
4064 |
if (value[j] == '.') {
|
|
|
4065 |
dot = j;
|
|
|
4066 |
break;
|
|
|
4067 |
}
|
|
|
4068 |
}
|
|
|
4069 |
|
|
|
4070 |
if (dot < len) {
|
|
|
4071 |
if (l == null || l.equals(Locale.US)) {
|
|
|
4072 |
decSep = '.';
|
|
|
4073 |
} else {
|
|
|
4074 |
DecimalFormatSymbols dfs = DecimalFormatSymbols.getInstance(l);
|
|
|
4075 |
decSep = dfs.getDecimalSeparator();
|
|
|
4076 |
}
|
|
|
4077 |
}
|
|
|
4078 |
|
|
|
4079 |
if (f.contains(Flags.GROUP)) {
|
|
|
4080 |
if (l == null || l.equals(Locale.US)) {
|
|
|
4081 |
grpSep = ',';
|
|
|
4082 |
grpSize = 3;
|
|
|
4083 |
} else {
|
|
|
4084 |
DecimalFormatSymbols dfs = DecimalFormatSymbols.getInstance(l);
|
|
|
4085 |
grpSep = dfs.getGroupingSeparator();
|
|
|
4086 |
DecimalFormat df = (DecimalFormat) NumberFormat.getIntegerInstance(l);
|
|
|
4087 |
grpSize = df.getGroupingSize();
|
|
|
4088 |
}
|
|
|
4089 |
}
|
|
|
4090 |
|
|
|
4091 |
// localize the digits inserting group separators as necessary
|
|
|
4092 |
for (int j = 0; j < len; j++) {
|
|
|
4093 |
if (j == dot) {
|
|
|
4094 |
sb.append(decSep);
|
|
|
4095 |
// no more group separators after the decimal separator
|
|
|
4096 |
grpSep = '\0';
|
|
|
4097 |
continue;
|
|
|
4098 |
}
|
|
|
4099 |
|
|
|
4100 |
char c = value[j];
|
|
|
4101 |
sb.append((char) ((c - '0') + zero));
|
|
|
4102 |
if (grpSep != '\0' && j != dot - 1 && ((dot - j) % grpSize == 1))
|
|
|
4103 |
sb.append(grpSep);
|
|
|
4104 |
}
|
|
|
4105 |
|
|
|
4106 |
// apply zero padding
|
|
|
4107 |
len = sb.length();
|
|
|
4108 |
if (width != -1 && f.contains(Flags.ZERO_PAD))
|
|
|
4109 |
for (int k = 0; k < width - len; k++)
|
|
|
4110 |
sb.insert(begin, zero);
|
|
|
4111 |
|
|
|
4112 |
return sb;
|
|
|
4113 |
}
|
|
|
4114 |
}
|
|
|
4115 |
|
|
|
4116 |
private static class Flags {
|
|
|
4117 |
private int flags;
|
|
|
4118 |
|
|
|
4119 |
static final Flags NONE = new Flags(0); // ''
|
|
|
4120 |
|
|
|
4121 |
// duplicate declarations from Formattable.java
|
|
|
4122 |
static final Flags LEFT_JUSTIFY = new Flags(1<<0); // '-'
|
|
|
4123 |
static final Flags UPPERCASE = new Flags(1<<1); // '^'
|
|
|
4124 |
static final Flags ALTERNATE = new Flags(1<<2); // '#'
|
|
|
4125 |
|
|
|
4126 |
// numerics
|
|
|
4127 |
static final Flags PLUS = new Flags(1<<3); // '+'
|
|
|
4128 |
static final Flags LEADING_SPACE = new Flags(1<<4); // ' '
|
|
|
4129 |
static final Flags ZERO_PAD = new Flags(1<<5); // '0'
|
|
|
4130 |
static final Flags GROUP = new Flags(1<<6); // ','
|
|
|
4131 |
static final Flags PARENTHESES = new Flags(1<<7); // '('
|
|
|
4132 |
|
|
|
4133 |
// indexing
|
|
|
4134 |
static final Flags PREVIOUS = new Flags(1<<8); // '<'
|
|
|
4135 |
|
|
|
4136 |
private Flags(int f) {
|
|
|
4137 |
flags = f;
|
|
|
4138 |
}
|
|
|
4139 |
|
|
|
4140 |
public int valueOf() {
|
|
|
4141 |
return flags;
|
|
|
4142 |
}
|
|
|
4143 |
|
|
|
4144 |
public boolean contains(Flags f) {
|
|
|
4145 |
return (flags & f.valueOf()) == f.valueOf();
|
|
|
4146 |
}
|
|
|
4147 |
|
|
|
4148 |
public Flags dup() {
|
|
|
4149 |
return new Flags(flags);
|
|
|
4150 |
}
|
|
|
4151 |
|
|
|
4152 |
private Flags add(Flags f) {
|
|
|
4153 |
flags |= f.valueOf();
|
|
|
4154 |
return this;
|
|
|
4155 |
}
|
|
|
4156 |
|
|
|
4157 |
public Flags remove(Flags f) {
|
|
|
4158 |
flags &= ~f.valueOf();
|
|
|
4159 |
return this;
|
|
|
4160 |
}
|
|
|
4161 |
|
|
|
4162 |
public static Flags parse(String s) {
|
|
|
4163 |
char[] ca = s.toCharArray();
|
|
|
4164 |
Flags f = new Flags(0);
|
|
|
4165 |
for (int i = 0; i < ca.length; i++) {
|
|
|
4166 |
Flags v = parse(ca[i]);
|
|
|
4167 |
if (f.contains(v))
|
|
|
4168 |
throw new DuplicateFormatFlagsException(v.toString());
|
|
|
4169 |
f.add(v);
|
|
|
4170 |
}
|
|
|
4171 |
return f;
|
|
|
4172 |
}
|
|
|
4173 |
|
|
|
4174 |
// parse those flags which may be provided by users
|
|
|
4175 |
private static Flags parse(char c) {
|
|
|
4176 |
switch (c) {
|
|
|
4177 |
case '-': return LEFT_JUSTIFY;
|
|
|
4178 |
case '#': return ALTERNATE;
|
|
|
4179 |
case '+': return PLUS;
|
|
|
4180 |
case ' ': return LEADING_SPACE;
|
|
|
4181 |
case '0': return ZERO_PAD;
|
|
|
4182 |
case ',': return GROUP;
|
|
|
4183 |
case '(': return PARENTHESES;
|
|
|
4184 |
case '<': return PREVIOUS;
|
|
|
4185 |
default:
|
|
|
4186 |
throw new UnknownFormatFlagsException(String.valueOf(c));
|
|
|
4187 |
}
|
|
|
4188 |
}
|
|
|
4189 |
|
|
|
4190 |
// Returns a string representation of the current <tt>Flags</tt>.
|
|
|
4191 |
public static String toString(Flags f) {
|
|
|
4192 |
return f.toString();
|
|
|
4193 |
}
|
|
|
4194 |
|
|
|
4195 |
public String toString() {
|
|
|
4196 |
StringBuilder sb = new StringBuilder();
|
|
|
4197 |
if (contains(LEFT_JUSTIFY)) sb.append('-');
|
|
|
4198 |
if (contains(UPPERCASE)) sb.append('^');
|
|
|
4199 |
if (contains(ALTERNATE)) sb.append('#');
|
|
|
4200 |
if (contains(PLUS)) sb.append('+');
|
|
|
4201 |
if (contains(LEADING_SPACE)) sb.append(' ');
|
|
|
4202 |
if (contains(ZERO_PAD)) sb.append('0');
|
|
|
4203 |
if (contains(GROUP)) sb.append(',');
|
|
|
4204 |
if (contains(PARENTHESES)) sb.append('(');
|
|
|
4205 |
if (contains(PREVIOUS)) sb.append('<');
|
|
|
4206 |
return sb.toString();
|
|
|
4207 |
}
|
|
|
4208 |
}
|
|
|
4209 |
|
|
|
4210 |
private static class Conversion {
|
|
|
4211 |
// Byte, Short, Integer, Long, BigInteger
|
|
|
4212 |
// (and associated primitives due to autoboxing)
|
|
|
4213 |
static final char DECIMAL_INTEGER = 'd';
|
|
|
4214 |
static final char OCTAL_INTEGER = 'o';
|
|
|
4215 |
static final char HEXADECIMAL_INTEGER = 'x';
|
|
|
4216 |
static final char HEXADECIMAL_INTEGER_UPPER = 'X';
|
|
|
4217 |
|
|
|
4218 |
// Float, Double, BigDecimal
|
|
|
4219 |
// (and associated primitives due to autoboxing)
|
|
|
4220 |
static final char SCIENTIFIC = 'e';
|
|
|
4221 |
static final char SCIENTIFIC_UPPER = 'E';
|
|
|
4222 |
static final char GENERAL = 'g';
|
|
|
4223 |
static final char GENERAL_UPPER = 'G';
|
|
|
4224 |
static final char DECIMAL_FLOAT = 'f';
|
|
|
4225 |
static final char HEXADECIMAL_FLOAT = 'a';
|
|
|
4226 |
static final char HEXADECIMAL_FLOAT_UPPER = 'A';
|
|
|
4227 |
|
|
|
4228 |
// Character, Byte, Short, Integer
|
|
|
4229 |
// (and associated primitives due to autoboxing)
|
|
|
4230 |
static final char CHARACTER = 'c';
|
|
|
4231 |
static final char CHARACTER_UPPER = 'C';
|
|
|
4232 |
|
|
|
4233 |
// java.util.Date, java.util.Calendar, long
|
|
|
4234 |
static final char DATE_TIME = 't';
|
|
|
4235 |
static final char DATE_TIME_UPPER = 'T';
|
|
|
4236 |
|
|
|
4237 |
// if (arg.TYPE != boolean) return boolean
|
|
|
4238 |
// if (arg != null) return true; else return false;
|
|
|
4239 |
static final char BOOLEAN = 'b';
|
|
|
4240 |
static final char BOOLEAN_UPPER = 'B';
|
|
|
4241 |
// if (arg instanceof Formattable) arg.formatTo()
|
|
|
4242 |
// else arg.toString();
|
|
|
4243 |
static final char STRING = 's';
|
|
|
4244 |
static final char STRING_UPPER = 'S';
|
|
|
4245 |
// arg.hashCode()
|
|
|
4246 |
static final char HASHCODE = 'h';
|
|
|
4247 |
static final char HASHCODE_UPPER = 'H';
|
|
|
4248 |
|
|
|
4249 |
static final char LINE_SEPARATOR = 'n';
|
|
|
4250 |
static final char PERCENT_SIGN = '%';
|
|
|
4251 |
|
|
|
4252 |
static boolean isValid(char c) {
|
|
|
4253 |
return (isGeneral(c) || isInteger(c) || isFloat(c) || isText(c)
|
|
|
4254 |
|| c == 't' || isCharacter(c));
|
|
|
4255 |
}
|
|
|
4256 |
|
|
|
4257 |
// Returns true iff the Conversion is applicable to all objects.
|
|
|
4258 |
static boolean isGeneral(char c) {
|
|
|
4259 |
switch (c) {
|
|
|
4260 |
case BOOLEAN:
|
|
|
4261 |
case BOOLEAN_UPPER:
|
|
|
4262 |
case STRING:
|
|
|
4263 |
case STRING_UPPER:
|
|
|
4264 |
case HASHCODE:
|
|
|
4265 |
case HASHCODE_UPPER:
|
|
|
4266 |
return true;
|
|
|
4267 |
default:
|
|
|
4268 |
return false;
|
|
|
4269 |
}
|
|
|
4270 |
}
|
|
|
4271 |
|
|
|
4272 |
// Returns true iff the Conversion is applicable to character.
|
|
|
4273 |
static boolean isCharacter(char c) {
|
|
|
4274 |
switch (c) {
|
|
|
4275 |
case CHARACTER:
|
|
|
4276 |
case CHARACTER_UPPER:
|
|
|
4277 |
return true;
|
|
|
4278 |
default:
|
|
|
4279 |
return false;
|
|
|
4280 |
}
|
|
|
4281 |
}
|
|
|
4282 |
|
|
|
4283 |
// Returns true iff the Conversion is an integer type.
|
|
|
4284 |
static boolean isInteger(char c) {
|
|
|
4285 |
switch (c) {
|
|
|
4286 |
case DECIMAL_INTEGER:
|
|
|
4287 |
case OCTAL_INTEGER:
|
|
|
4288 |
case HEXADECIMAL_INTEGER:
|
|
|
4289 |
case HEXADECIMAL_INTEGER_UPPER:
|
|
|
4290 |
return true;
|
|
|
4291 |
default:
|
|
|
4292 |
return false;
|
|
|
4293 |
}
|
|
|
4294 |
}
|
|
|
4295 |
|
|
|
4296 |
// Returns true iff the Conversion is a floating-point type.
|
|
|
4297 |
static boolean isFloat(char c) {
|
|
|
4298 |
switch (c) {
|
|
|
4299 |
case SCIENTIFIC:
|
|
|
4300 |
case SCIENTIFIC_UPPER:
|
|
|
4301 |
case GENERAL:
|
|
|
4302 |
case GENERAL_UPPER:
|
|
|
4303 |
case DECIMAL_FLOAT:
|
|
|
4304 |
case HEXADECIMAL_FLOAT:
|
|
|
4305 |
case HEXADECIMAL_FLOAT_UPPER:
|
|
|
4306 |
return true;
|
|
|
4307 |
default:
|
|
|
4308 |
return false;
|
|
|
4309 |
}
|
|
|
4310 |
}
|
|
|
4311 |
|
|
|
4312 |
// Returns true iff the Conversion does not require an argument
|
|
|
4313 |
static boolean isText(char c) {
|
|
|
4314 |
switch (c) {
|
|
|
4315 |
case LINE_SEPARATOR:
|
|
|
4316 |
case PERCENT_SIGN:
|
|
|
4317 |
return true;
|
|
|
4318 |
default:
|
|
|
4319 |
return false;
|
|
|
4320 |
}
|
|
|
4321 |
}
|
|
|
4322 |
}
|
|
|
4323 |
|
|
|
4324 |
private static class DateTime {
|
|
|
4325 |
static final char HOUR_OF_DAY_0 = 'H'; // (00 - 23)
|
|
|
4326 |
static final char HOUR_0 = 'I'; // (01 - 12)
|
|
|
4327 |
static final char HOUR_OF_DAY = 'k'; // (0 - 23) -- like H
|
|
|
4328 |
static final char HOUR = 'l'; // (1 - 12) -- like I
|
|
|
4329 |
static final char MINUTE = 'M'; // (00 - 59)
|
|
|
4330 |
static final char NANOSECOND = 'N'; // (000000000 - 999999999)
|
|
|
4331 |
static final char MILLISECOND = 'L'; // jdk, not in gnu (000 - 999)
|
|
|
4332 |
static final char MILLISECOND_SINCE_EPOCH = 'Q'; // (0 - 99...?)
|
|
|
4333 |
static final char AM_PM = 'p'; // (am or pm)
|
|
|
4334 |
static final char SECONDS_SINCE_EPOCH = 's'; // (0 - 99...?)
|
|
|
4335 |
static final char SECOND = 'S'; // (00 - 60 - leap second)
|
|
|
4336 |
static final char TIME = 'T'; // (24 hour hh:mm:ss)
|
|
|
4337 |
static final char ZONE_NUMERIC = 'z'; // (-1200 - +1200) - ls minus?
|
|
|
4338 |
static final char ZONE = 'Z'; // (symbol)
|
|
|
4339 |
|
|
|
4340 |
// Date
|
|
|
4341 |
static final char NAME_OF_DAY_ABBREV = 'a'; // 'a'
|
|
|
4342 |
static final char NAME_OF_DAY = 'A'; // 'A'
|
|
|
4343 |
static final char NAME_OF_MONTH_ABBREV = 'b'; // 'b'
|
|
|
4344 |
static final char NAME_OF_MONTH = 'B'; // 'B'
|
|
|
4345 |
static final char CENTURY = 'C'; // (00 - 99)
|
|
|
4346 |
static final char DAY_OF_MONTH_0 = 'd'; // (01 - 31)
|
|
|
4347 |
static final char DAY_OF_MONTH = 'e'; // (1 - 31) -- like d
|
|
|
4348 |
// * static final char ISO_WEEK_OF_YEAR_2 = 'g'; // cross %y %V
|
|
|
4349 |
// * static final char ISO_WEEK_OF_YEAR_4 = 'G'; // cross %Y %V
|
|
|
4350 |
static final char NAME_OF_MONTH_ABBREV_X = 'h'; // -- same b
|
|
|
4351 |
static final char DAY_OF_YEAR = 'j'; // (001 - 366)
|
|
|
4352 |
static final char MONTH = 'm'; // (01 - 12)
|
|
|
4353 |
// * static final char DAY_OF_WEEK_1 = 'u'; // (1 - 7) Monday
|
|
|
4354 |
// * static final char WEEK_OF_YEAR_SUNDAY = 'U'; // (0 - 53) Sunday+
|
|
|
4355 |
// * static final char WEEK_OF_YEAR_MONDAY_01 = 'V'; // (01 - 53) Monday+
|
|
|
4356 |
// * static final char DAY_OF_WEEK_0 = 'w'; // (0 - 6) Sunday
|
|
|
4357 |
// * static final char WEEK_OF_YEAR_MONDAY = 'W'; // (00 - 53) Monday
|
|
|
4358 |
static final char YEAR_2 = 'y'; // (00 - 99)
|
|
|
4359 |
static final char YEAR_4 = 'Y'; // (0000 - 9999)
|
|
|
4360 |
|
|
|
4361 |
// Composites
|
|
|
4362 |
static final char TIME_12_HOUR = 'r'; // (hh:mm:ss [AP]M)
|
|
|
4363 |
static final char TIME_24_HOUR = 'R'; // (hh:mm same as %H:%M)
|
|
|
4364 |
// * static final char LOCALE_TIME = 'X'; // (%H:%M:%S) - parse format?
|
|
|
4365 |
static final char DATE_TIME = 'c';
|
|
|
4366 |
// (Sat Nov 04 12:02:33 EST 1999)
|
|
|
4367 |
static final char DATE = 'D'; // (mm/dd/yy)
|
|
|
4368 |
static final char ISO_STANDARD_DATE = 'F'; // (%Y-%m-%d)
|
|
|
4369 |
// * static final char LOCALE_DATE = 'x'; // (mm/dd/yy)
|
|
|
4370 |
|
|
|
4371 |
static boolean isValid(char c) {
|
|
|
4372 |
switch (c) {
|
|
|
4373 |
case HOUR_OF_DAY_0:
|
|
|
4374 |
case HOUR_0:
|
|
|
4375 |
case HOUR_OF_DAY:
|
|
|
4376 |
case HOUR:
|
|
|
4377 |
case MINUTE:
|
|
|
4378 |
case NANOSECOND:
|
|
|
4379 |
case MILLISECOND:
|
|
|
4380 |
case MILLISECOND_SINCE_EPOCH:
|
|
|
4381 |
case AM_PM:
|
|
|
4382 |
case SECONDS_SINCE_EPOCH:
|
|
|
4383 |
case SECOND:
|
|
|
4384 |
case TIME:
|
|
|
4385 |
case ZONE_NUMERIC:
|
|
|
4386 |
case ZONE:
|
|
|
4387 |
|
|
|
4388 |
// Date
|
|
|
4389 |
case NAME_OF_DAY_ABBREV:
|
|
|
4390 |
case NAME_OF_DAY:
|
|
|
4391 |
case NAME_OF_MONTH_ABBREV:
|
|
|
4392 |
case NAME_OF_MONTH:
|
|
|
4393 |
case CENTURY:
|
|
|
4394 |
case DAY_OF_MONTH_0:
|
|
|
4395 |
case DAY_OF_MONTH:
|
|
|
4396 |
// * case ISO_WEEK_OF_YEAR_2:
|
|
|
4397 |
// * case ISO_WEEK_OF_YEAR_4:
|
|
|
4398 |
case NAME_OF_MONTH_ABBREV_X:
|
|
|
4399 |
case DAY_OF_YEAR:
|
|
|
4400 |
case MONTH:
|
|
|
4401 |
// * case DAY_OF_WEEK_1:
|
|
|
4402 |
// * case WEEK_OF_YEAR_SUNDAY:
|
|
|
4403 |
// * case WEEK_OF_YEAR_MONDAY_01:
|
|
|
4404 |
// * case DAY_OF_WEEK_0:
|
|
|
4405 |
// * case WEEK_OF_YEAR_MONDAY:
|
|
|
4406 |
case YEAR_2:
|
|
|
4407 |
case YEAR_4:
|
|
|
4408 |
|
|
|
4409 |
// Composites
|
|
|
4410 |
case TIME_12_HOUR:
|
|
|
4411 |
case TIME_24_HOUR:
|
|
|
4412 |
// * case LOCALE_TIME:
|
|
|
4413 |
case DATE_TIME:
|
|
|
4414 |
case DATE:
|
|
|
4415 |
case ISO_STANDARD_DATE:
|
|
|
4416 |
// * case LOCALE_DATE:
|
|
|
4417 |
return true;
|
|
|
4418 |
default:
|
|
|
4419 |
return false;
|
|
|
4420 |
}
|
|
|
4421 |
}
|
|
|
4422 |
}
|
|
|
4423 |
}
|