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| 1 | +/* | |
| 2 | + * Copyright (c) 2003, 2011, Oracle and/or its affiliates. All rights reserved. | |
| 3 | + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | |
| 4 | + * | |
| 5 | + * This code is free software; you can redistribute it and/or modify it | |
| 6 | + * under the terms of the GNU General Public License version 2 only, as | |
| 7 | + * published by the Free Software Foundation. Oracle designates this | |
| 8 | + * particular file as subject to the "Classpath" exception as provided | |
| 9 | + * by Oracle in the LICENSE file that accompanied this code. | |
| 10 | + * | |
| 11 | + * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 12 | + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 13 | + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 14 | + * version 2 for more details (a copy is included in the LICENSE file that | |
| 15 | + * accompanied this code). | |
| 16 | + * | |
| 17 | + * You should have received a copy of the GNU General Public License version | |
| 18 | + * 2 along with this work; if not, write to the Free Software Foundation, | |
| 19 | + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 20 | + * | |
| 21 | + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | |
| 22 | + * or visit www.oracle.com if you need additional information or have any | |
| 23 | + * questions. | |
| 24 | + */ | |
| 25 | + | |
| 26 | +package java.util; | |
| 27 | + | |
| 28 | +import java.io.BufferedWriter; | |
| 29 | +import java.io.Closeable; | |
| 30 | +import java.io.IOException; | |
| 31 | +import java.io.File; | |
| 32 | +import java.io.FileOutputStream; | |
| 33 | +import java.io.FileNotFoundException; | |
| 34 | +import java.io.Flushable; | |
| 35 | +import java.io.OutputStream; | |
| 36 | +import java.io.OutputStreamWriter; | |
| 37 | +import java.io.PrintStream; | |
| 38 | +import java.io.UnsupportedEncodingException; | |
| 39 | +import java.math.BigDecimal; | |
| 40 | +import java.math.BigInteger; | |
| 41 | +import java.math.MathContext; | |
| 42 | +import java.math.RoundingMode; | |
| 43 | +import java.nio.charset.Charset; | |
| 44 | +import java.nio.charset.IllegalCharsetNameException; | |
| 45 | +import java.nio.charset.UnsupportedCharsetException; | |
| 46 | +import java.text.DateFormatSymbols; | |
| 47 | +import java.text.DecimalFormat; | |
| 48 | +import java.text.DecimalFormatSymbols; | |
| 49 | +import java.text.NumberFormat; | |
| 50 | +import java.util.regex.Matcher; | |
| 51 | +import java.util.regex.Pattern; | |
| 52 | + | |
| 53 | +import sun.misc.FpUtils; | |
| 54 | +import sun.misc.DoubleConsts; | |
| 55 | +import sun.misc.FormattedFloatingDecimal; | |
| 56 | + | |
| 57 | +/** | |
| 58 | + * An interpreter for printf-style format strings. This class provides support | |
| 59 | + * for layout justification and alignment, common formats for numeric, string, | |
| 60 | + * and date/time data, and locale-specific output. Common Java types such as | |
| 61 | + * {@code byte}, {@link java.math.BigDecimal BigDecimal}, and {@link Calendar} | |
| 62 | + * are supported. Limited formatting customization for arbitrary user types is | |
| 63 | + * provided through the {@link Formattable} interface. | |
| 64 | + * | |
| 65 | + * <p> Formatters are not necessarily safe for multithreaded access. Thread | |
| 66 | + * safety is optional and is the responsibility of users of methods in this | |
| 67 | + * class. | |
| 68 | + * | |
| 69 | + * <p> Formatted printing for the Java language is heavily inspired by C's | |
| 70 | + * {@code printf}. Although the format strings are similar to C, some | |
| 71 | + * customizations have been made to accommodate the Java language and exploit | |
| 72 | + * some of its features. Also, Java formatting is more strict than C's; for | |
| 73 | + * example, if a conversion is incompatible with a flag, an exception will be | |
| 74 | + * thrown. In C inapplicable flags are silently ignored. The format strings | |
| 75 | + * are thus intended to be recognizable to C programmers but not necessarily | |
| 76 | + * completely compatible with those in C. | |
| 77 | + * | |
| 78 | + * <p> Examples of expected usage: | |
| 79 | + * | |
| 80 | + * <blockquote><pre> | |
| 81 | + * StringBuilder sb = new StringBuilder(); | |
| 82 | + * // Send all output to the Appendable object sb | |
| 83 | + * Formatter formatter = new Formatter(sb, Locale.US); | |
| 84 | + * | |
| 85 | + * // Explicit argument indices may be used to re-order output. | |
| 86 | + * formatter.format("%4$2s %3$2s %2$2s %1$2s", "a", "b", "c", "d") | |
| 87 | + * // -> " d c b a" | |
| 88 | + * | |
| 89 | + * // Optional locale as the first argument can be used to get | |
| 90 | + * // locale-specific formatting of numbers. The precision and width can be | |
| 91 | + * // given to round and align the value. | |
| 92 | + * formatter.format(Locale.FRANCE, "e = %+10.4f", Math.E); | |
| 93 | + * // -> "e = +2,7183" | |
| 94 | + * | |
| 95 | + * // The '(' numeric flag may be used to format negative numbers with | |
| 96 | + * // parentheses rather than a minus sign. Group separators are | |
| 97 | + * // automatically inserted. | |
| 98 | + * formatter.format("Amount gained or lost since last statement: $ %(,.2f", | |
| 99 | + * balanceDelta); | |
| 100 | + * // -> "Amount gained or lost since last statement: $ (6,217.58)" | |
| 101 | + * </pre></blockquote> | |
| 102 | + * | |
| 103 | + * <p> Convenience methods for common formatting requests exist as illustrated | |
| 104 | + * by the following invocations: | |
| 105 | + * | |
| 106 | + * <blockquote><pre> | |
| 107 | + * // Writes a formatted string to System.out. | |
| 108 | + * System.out.format("Local time: %tT", Calendar.getInstance()); | |
| 109 | + * // -> "Local time: 13:34:18" | |
| 110 | + * | |
| 111 | + * // Writes formatted output to System.err. | |
| 112 | + * System.err.printf("Unable to open file '%1$s': %2$s", | |
| 113 | + * fileName, exception.getMessage()); | |
| 114 | + * // -> "Unable to open file 'food': No such file or directory" | |
| 115 | + * </pre></blockquote> | |
| 116 | + * | |
| 117 | + * <p> Like C's {@code sprintf(3)}, Strings may be formatted using the static | |
| 118 | + * method {@link String#format(String,Object...) String.format}: | |
| 119 | + * | |
| 120 | + * <blockquote><pre> | |
| 121 | + * // Format a string containing a date. | |
| 122 | + * import java.util.Calendar; | |
| 123 | + * import java.util.GregorianCalendar; | |
| 124 | + * import static java.util.Calendar.*; | |
| 125 | + * | |
| 126 | + * Calendar c = new GregorianCalendar(1995, MAY, 23); | |
| 127 | + * String s = String.format("Duke's Birthday: %1$tm %1$te,%1$tY", c); | |
| 128 | + * // -> s == "Duke's Birthday: May 23, 1995" | |
| 129 | + * </pre></blockquote> | |
| 130 | + * | |
| 131 | + * <h3><a name="org">Organization</a></h3> | |
| 132 | + * | |
| 133 | + * <p> This specification is divided into two sections. The first section, <a | |
| 134 | + * href="#summary">Summary</a>, covers the basic formatting concepts. This | |
| 135 | + * section is intended for users who want to get started quickly and are | |
| 136 | + * familiar with formatted printing in other programming languages. The second | |
| 137 | + * section, <a href="#detail">Details</a>, covers the specific implementation | |
| 138 | + * details. It is intended for users who want more precise specification of | |
| 139 | + * formatting behavior. | |
| 140 | + * | |
| 141 | + * <h3><a name="summary">Summary</a></h3> | |
| 142 | + * | |
| 143 | + * <p> This section is intended to provide a brief overview of formatting | |
| 144 | + * concepts. For precise behavioral details, refer to the <a | |
| 145 | + * href="#detail">Details</a> section. | |
| 146 | + * | |
| 147 | + * <h4><a name="syntax">Format String Syntax</a></h4> | |
| 148 | + * | |
| 149 | + * <p> Every method which produces formatted output requires a <i>format | |
| 150 | + * string</i> and an <i>argument list</i>. The format string is a {@link | |
| 151 | + * String} which may contain fixed text and one or more embedded <i>format | |
| 152 | + * specifiers</i>. Consider the following example: | |
| 153 | + * | |
| 154 | + * <blockquote><pre> | |
| 155 | + * Calendar c = ...; | |
| 156 | + * String s = String.format("Duke's Birthday: %1$tm %1$te,%1$tY", c); | |
| 157 | + * </pre></blockquote> | |
| 158 | + * | |
| 159 | + * This format string is the first argument to the {@code format} method. It | |
| 160 | + * contains three format specifiers "{@code %1$tm}", "{@code %1$te}", and | |
| 161 | + * "{@code %1$tY}" which indicate how the arguments should be processed and | |
| 162 | + * where they should be inserted in the text. The remaining portions of the | |
| 163 | + * format string are fixed text including {@code "Dukes Birthday: "} and any | |
| 164 | + * other spaces or punctuation. | |
| 165 | + * | |
| 166 | + * The argument list consists of all arguments passed to the method after the | |
| 167 | + * format string. In the above example, the argument list is of size one and | |
| 168 | + * consists of the {@link java.util.Calendar Calendar} object {@code c}. | |
| 169 | + * | |
| 170 | + * <ul> | |
| 171 | + * | |
| 172 | + * <li> The format specifiers for general, character, and numeric types have | |
| 173 | + * the following syntax: | |
| 174 | + * | |
| 175 | + * <blockquote><pre> | |
| 176 | + * %[argument_index$][flags][width][.precision]conversion | |
| 177 | + * </pre></blockquote> | |
| 178 | + * | |
| 179 | + * <p> The optional <i>argument_index</i> is a decimal integer indicating the | |
| 180 | + * position of the argument in the argument list. The first argument is | |
| 181 | + * referenced by "{@code 1$}", the second by "{@code 2$}", etc. | |
| 182 | + * | |
| 183 | + * <p> The optional <i>flags</i> is a set of characters that modify the output | |
| 184 | + * format. The set of valid flags depends on the conversion. | |
| 185 | + * | |
| 186 | + * <p> The optional <i>width</i> is a non-negative decimal integer indicating | |
| 187 | + * the minimum number of characters to be written to the output. | |
| 188 | + * | |
| 189 | + * <p> The optional <i>precision</i> is a non-negative decimal integer usually | |
| 190 | + * used to restrict the number of characters. The specific behavior depends on | |
| 191 | + * the conversion. | |
| 192 | + * | |
| 193 | + * <p> The required <i>conversion</i> is a character indicating how the | |
| 194 | + * argument should be formatted. The set of valid conversions for a given | |
| 195 | + * argument depends on the argument's data type. | |
| 196 | + * | |
| 197 | + * <li> The format specifiers for types which are used to represents dates and | |
| 198 | + * times have the following syntax: | |
| 199 | + * | |
| 200 | + * <blockquote><pre> | |
| 201 | + * %[argument_index$][flags][width]conversion | |
| 202 | + * </pre></blockquote> | |
| 203 | + * | |
| 204 | + * <p> The optional <i>argument_index</i>, <i>flags</i> and <i>width</i> are | |
| 205 | + * defined as above. | |
| 206 | + * | |
| 207 | + * <p> The required <i>conversion</i> is a two character sequence. The first | |
| 208 | + * character is {@code 't'} or {@code 'T'}. The second character indicates | |
| 209 | + * the format to be used. These characters are similar to but not completely | |
| 210 | + * identical to those defined by GNU {@code date} and POSIX | |
| 211 | + * {@code strftime(3c)}. | |
| 212 | + * | |
| 213 | + * <li> The format specifiers which do not correspond to arguments have the | |
| 214 | + * following syntax: | |
| 215 | + * | |
| 216 | + * <blockquote><pre> | |
| 217 | + * %[flags][width]conversion | |
| 218 | + * </pre></blockquote> | |
| 219 | + * | |
| 220 | + * <p> The optional <i>flags</i> and <i>width</i> is defined as above. | |
| 221 | + * | |
| 222 | + * <p> The required <i>conversion</i> is a character indicating content to be | |
| 223 | + * inserted in the output. | |
| 224 | + * | |
| 225 | + * </ul> | |
| 226 | + * | |
| 227 | + * <h4> Conversions </h4> | |
| 228 | + * | |
| 229 | + * <p> Conversions are divided into the following categories: | |
| 230 | + * | |
| 231 | + * <ol> | |
| 232 | + * | |
| 233 | + * <li> <b>General</b> - may be applied to any argument | |
| 234 | + * type | |
| 235 | + * | |
| 236 | + * <li> <b>Character</b> - may be applied to basic types which represent | |
| 237 | + * Unicode characters: {@code char}, {@link Character}, {@code byte}, {@link | |
| 238 | + * Byte}, {@code short}, and {@link Short}. This conversion may also be | |
| 239 | + * applied to the types {@code int} and {@link Integer} when {@link | |
| 240 | + * Character#isValidCodePoint} returns {@code true} | |
| 241 | + * | |
| 242 | + * <li> <b>Numeric</b> | |
| 243 | + * | |
| 244 | + * <ol> | |
| 245 | + * | |
| 246 | + * <li> <b>Integral</b> - may be applied to Java integral types: {@code byte}, | |
| 247 | + * {@link Byte}, {@code short}, {@link Short}, {@code int} and {@link | |
| 248 | + * Integer}, {@code long}, {@link Long}, and {@link java.math.BigInteger | |
| 249 | + * BigInteger} | |
| 250 | + * | |
| 251 | + * <li><b>Floating Point</b> - may be applied to Java floating-point types: | |
| 252 | + * {@code float}, {@link Float}, {@code double}, {@link Double}, and {@link | |
| 253 | + * java.math.BigDecimal BigDecimal} | |
| 254 | + * | |
| 255 | + * </ol> | |
| 256 | + * | |
| 257 | + * <li> <b>Date/Time</b> - may be applied to Java types which are capable of | |
| 258 | + * encoding a date or time: {@code long}, {@link Long}, {@link Calendar}, and | |
| 259 | + * {@link Date}. | |
| 260 | + * | |
| 261 | + * <li> <b>Percent</b> - produces a literal {@code '%'} | |
| 262 | + * (<tt>'\u0025'</tt>) | |
| 263 | + * | |
| 264 | + * <li> <b>Line Separator</b> - produces the platform-specific line separator | |
| 265 | + * | |
| 266 | + * </ol> | |
| 267 | + * | |
| 268 | + * <p> The following table summarizes the supported conversions. Conversions | |
| 269 | + * denoted by an upper-case character (i.e. {@code 'B'}, {@code 'H'}, | |
| 270 | + * {@code 'S'}, {@code 'C'}, {@code 'X'}, {@code 'E'}, {@code 'G'}, | |
| 271 | + * {@code 'A'}, and {@code 'T'}) are the same as those for the corresponding | |
| 272 | + * lower-case conversion characters except that the result is converted to | |
| 273 | + * upper case according to the rules of the prevailing {@link java.util.Locale | |
| 274 | + * Locale}. The result is equivalent to the following invocation of {@link | |
| 275 | + * String#toUpperCase()} | |
| 276 | + * | |
| 277 | + * <pre> | |
| 278 | + * out.toUpperCase() </pre> | |
| 279 | + * | |
| 280 | + * <table cellpadding=5 summary="genConv"> | |
| 281 | + * | |
| 282 | + * <tr><th valign="bottom"> Conversion | |
| 283 | + * <th valign="bottom"> Argument Category | |
| 284 | + * <th valign="bottom"> Description | |
| 285 | + * | |
| 286 | + * <tr><td valign="top"> {@code 'b'}, {@code 'B'} | |
| 287 | + * <td valign="top"> general | |
| 288 | + * <td> If the argument <i>arg</i> is {@code null}, then the result is | |
| 289 | + * "{@code false}". If <i>arg</i> is a {@code boolean} or {@link | |
| 290 | + * Boolean}, then the result is the string returned by {@link | |
| 291 | + * String#valueOf(boolean) String.valueOf(arg)}. Otherwise, the result is | |
| 292 | + * "true". | |
| 293 | + * | |
| 294 | + * <tr><td valign="top"> {@code 'h'}, {@code 'H'} | |
| 295 | + * <td valign="top"> general | |
| 296 | + * <td> If the argument <i>arg</i> is {@code null}, then the result is | |
| 297 | + * "{@code null}". Otherwise, the result is obtained by invoking | |
| 298 | + * {@code Integer.toHexString(arg.hashCode())}. | |
| 299 | + * | |
| 300 | + * <tr><td valign="top"> {@code 's'}, {@code 'S'} | |
| 301 | + * <td valign="top"> general | |
| 302 | + * <td> If the argument <i>arg</i> is {@code null}, then the result is | |
| 303 | + * "{@code null}". If <i>arg</i> implements {@link Formattable}, then | |
| 304 | + * {@link Formattable#formatTo arg.formatTo} is invoked. Otherwise, the | |
| 305 | + * result is obtained by invoking {@code arg.toString()}. | |
| 306 | + * | |
| 307 | + * <tr><td valign="top">{@code 'c'}, {@code 'C'} | |
| 308 | + * <td valign="top"> character | |
| 309 | + * <td> The result is a Unicode character | |
| 310 | + * | |
| 311 | + * <tr><td valign="top">{@code 'd'} | |
| 312 | + * <td valign="top"> integral | |
| 313 | + * <td> The result is formatted as a decimal integer | |
| 314 | + * | |
| 315 | + * <tr><td valign="top">{@code 'o'} | |
| 316 | + * <td valign="top"> integral | |
| 317 | + * <td> The result is formatted as an octal integer | |
| 318 | + * | |
| 319 | + * <tr><td valign="top">{@code 'x'}, {@code 'X'} | |
| 320 | + * <td valign="top"> integral | |
| 321 | + * <td> The result is formatted as a hexadecimal integer | |
| 322 | + * | |
| 323 | + * <tr><td valign="top">{@code 'e'}, {@code 'E'} | |
| 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">{@code 'f'} | |
| 329 | + * <td valign="top"> floating point | |
| 330 | + * <td> The result is formatted as a decimal number | |
| 331 | + * | |
| 332 | + * <tr><td valign="top">{@code 'g'}, {@code 'G'} | |
| 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">{@code 'a'}, {@code 'A'} | |
| 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">{@code 't'}, {@code 'T'} | |
| 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">{@code '%'} | |
| 348 | + * <td valign="top"> percent | |
| 349 | + * <td> The result is a literal {@code '%'} (<tt>'\u0025'</tt>) | |
| 350 | + * | |
| 351 | + * <tr><td valign="top">{@code 'n'} | |
| 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 {@code 't'} and {@code 'T'} conversions. The types are similar to but | |
| 364 | + * not completely identical to those defined by GNU {@code date} and POSIX | |
| 365 | + * {@code strftime(3c)}. Additional conversion types are provided to access | |
| 366 | + * Java-specific functionality (e.g. {@code 'L'} 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"> {@code 'H'} | |
| 374 | + * <td> Hour of the day for the 24-hour clock, formatted as two digits with | |
| 375 | + * a leading zero as necessary i.e. {@code 00 - 23}. | |
| 376 | + * | |
| 377 | + * <tr><td valign="top">{@code 'I'} | |
| 378 | + * <td> Hour for the 12-hour clock, formatted as two digits with a leading | |
| 379 | + * zero as necessary, i.e. {@code 01 - 12}. | |
| 380 | + * | |
| 381 | + * <tr><td valign="top">{@code 'k'} | |
| 382 | + * <td> Hour of the day for the 24-hour clock, i.e. {@code 0 - 23}. | |
| 383 | + * | |
| 384 | + * <tr><td valign="top">{@code 'l'} | |
| 385 | + * <td> Hour for the 12-hour clock, i.e. {@code 1 - 12}. | |
| 386 | + * | |
| 387 | + * <tr><td valign="top">{@code 'M'} | |
| 388 | + * <td> Minute within the hour formatted as two digits with a leading zero | |
| 389 | + * as necessary, i.e. {@code 00 - 59}. | |
| 390 | + * | |
| 391 | + * <tr><td valign="top">{@code 'S'} | |
| 392 | + * <td> Seconds within the minute, formatted as two digits with a leading | |
| 393 | + * zero as necessary, i.e. {@code 00 - 60} ("{@code 60}" is a special | |
| 394 | + * value required to support leap seconds). | |
| 395 | + * | |
| 396 | + * <tr><td valign="top">{@code 'L'} | |
| 397 | + * <td> Millisecond within the second formatted as three digits with | |
| 398 | + * leading zeros as necessary, i.e. {@code 000 - 999}. | |
| 399 | + * | |
| 400 | + * <tr><td valign="top">{@code 'N'} | |
| 401 | + * <td> Nanosecond within the second, formatted as nine digits with leading | |
| 402 | + * zeros as necessary, i.e. {@code 000000000 - 999999999}. | |
| 403 | + * | |
| 404 | + * <tr><td valign="top">{@code 'p'} | |
| 405 | + * <td> Locale-specific {@linkplain | |
| 406 | + * java.text.DateFormatSymbols#getAmPmStrings morning or afternoon} marker | |
| 407 | + * in lower case, e.g."{@code am}" or "{@code pm}". Use of the conversion | |
| 408 | + * prefix {@code 'T'} forces this output to upper case. | |
| 409 | + * | |
| 410 | + * <tr><td valign="top">{@code 'z'} | |
| 411 | + * <td> <a href="http://www.ietf.org/rfc/rfc0822.txt">RFC 822</a> | |
| 412 | + * style numeric time zone offset from GMT, e.g. {@code -0800}. This | |
| 413 | + * value will be adjusted as necessary for Daylight Saving Time. For | |
| 414 | + * {@code long}, {@link Long}, and {@link Date} the time zone used is | |
| 415 | + * the {@linkplain TimeZone#getDefault() default time zone} for this | |
| 416 | + * instance of the Java virtual machine. | |
| 417 | + * | |
| 418 | + * <tr><td valign="top">{@code 'Z'} | |
| 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 | + * {@code long}, {@link Long}, and {@link Date} the time zone used is | |
| 422 | + * the {@linkplain 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">{@code 's'} | |
| 427 | + * <td> Seconds since the beginning of the epoch starting at 1 January 1970 | |
| 428 | + * {@code 00:00:00} UTC, i.e. {@code Long.MIN_VALUE/1000} to | |
| 429 | + * {@code Long.MAX_VALUE/1000}. | |
| 430 | + * | |
| 431 | + * <tr><td valign="top">{@code 'Q'} | |
| 432 | + * <td> Milliseconds since the beginning of the epoch starting at 1 January | |
| 433 | + * 1970 {@code 00:00:00} UTC, i.e. {@code Long.MIN_VALUE} to | |
| 434 | + * {@code Long.MAX_VALUE}. | |
| 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">{@code 'B'} | |
| 443 | + * <td> Locale-specific {@linkplain java.text.DateFormatSymbols#getMonths | |
| 444 | + * full month name}, e.g. {@code "January"}, {@code "February"}. | |
| 445 | + * | |
| 446 | + * <tr><td valign="top">{@code 'b'} | |
| 447 | + * <td> Locale-specific {@linkplain | |
| 448 | + * java.text.DateFormatSymbols#getShortMonths abbreviated month name}, | |
| 449 | + * e.g. {@code "Jan"}, {@code "Feb"}. | |
| 450 | + * | |
| 451 | + * <tr><td valign="top">{@code 'h'} | |
| 452 | + * <td> Same as {@code 'b'}. | |
| 453 | + * | |
| 454 | + * <tr><td valign="top">{@code 'A'} | |
| 455 | + * <td> Locale-specific full name of the {@linkplain | |
| 456 | + * java.text.DateFormatSymbols#getWeekdays day of the week}, | |
| 457 | + * e.g. {@code "Sunday"}, {@code "Monday"} | |
| 458 | + * | |
| 459 | + * <tr><td valign="top">{@code 'a'} | |
| 460 | + * <td> Locale-specific short name of the {@linkplain | |
| 461 | + * java.text.DateFormatSymbols#getShortWeekdays day of the week}, | |
| 462 | + * e.g. {@code "Sun"}, {@code "Mon"} | |
| 463 | + * | |
| 464 | + * <tr><td valign="top">{@code 'C'} | |
| 465 | + * <td> Four-digit year divided by {@code 100}, formatted as two digits | |
| 466 | + * with leading zero as necessary, i.e. {@code 00 - 99} | |
| 467 | + * | |
| 468 | + * <tr><td valign="top">{@code 'Y'} | |
| 469 | + * <td> Year, formatted as at least four digits with leading zeros as | |
| 470 | + * necessary, e.g. {@code 0092} equals {@code 92} CE for the Gregorian | |
| 471 | + * calendar. | |
| 472 | + * | |
| 473 | + * <tr><td valign="top">{@code 'y'} | |
| 474 | + * <td> Last two digits of the year, formatted with leading zeros as | |
| 475 | + * necessary, i.e. {@code 00 - 99}. | |
| 476 | + * | |
| 477 | + * <tr><td valign="top">{@code 'j'} | |
| 478 | + * <td> Day of year, formatted as three digits with leading zeros as | |
| 479 | + * necessary, e.g. {@code 001 - 366} for the Gregorian calendar. | |
| 480 | + * | |
| 481 | + * <tr><td valign="top">{@code 'm'} | |
| 482 | + * <td> Month, formatted as two digits with leading zeros as necessary, | |
| 483 | + * i.e. {@code 01 - 13}. | |
| 484 | + * | |
| 485 | + * <tr><td valign="top">{@code 'd'} | |
| 486 | + * <td> Day of month, formatted as two digits with leading zeros as | |
| 487 | + * necessary, i.e. {@code 01 - 31} | |
| 488 | + * | |
| 489 | + * <tr><td valign="top">{@code 'e'} | |
| 490 | + * <td> Day of month, formatted as two digits, i.e. {@code 1 - 31}. | |
| 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">{@code 'R'} | |
| 500 | + * <td> Time formatted for the 24-hour clock as {@code "%tH:%tM"} | |
| 501 | + * | |
| 502 | + * <tr><td valign="top">{@code 'T'} | |
| 503 | + * <td> Time formatted for the 24-hour clock as {@code "%tH:%tM:%tS"}. | |
| 504 | + * | |
| 505 | + * <tr><td valign="top">{@code 'r'} | |
| 506 | + * <td> Time formatted for the 12-hour clock as {@code "%tI:%tM:%tS %Tp"}. | |
| 507 | + * The location of the morning or afternoon marker ({@code '%Tp'}) may be | |
| 508 | + * locale-dependent. | |
| 509 | + * | |
| 510 | + * <tr><td valign="top">{@code 'D'} | |
| 511 | + * <td> Date formatted as {@code "%tm/%td/%ty"}. | |
| 512 | + * | |
| 513 | + * <tr><td valign="top">{@code 'F'} | |
| 514 | + * <td> <a href="http://www.w3.org/TR/NOTE-datetime">ISO 8601</a> | |
| 515 | + * complete date formatted as {@code "%tY-%tm-%td"}. | |
| 516 | + * | |
| 517 | + * <tr><td valign="top">{@code 'c'} | |
| 518 | + * <td> Date and time formatted as {@code "%ta %tb %td %tT %tZ %tY"}, | |
| 519 | + * e.g. {@code "Sun Jul 20 16:17:00 EDT 1969"}. | |
| 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 {@code 'd'} conversion only. | |
| 594 | + * | |
| 595 | + * <p> <sup>3</sup> For {@code 'o'}, {@code 'x'}, and {@code 'X'} | |
| 596 | + * conversions only. | |
| 597 | + * | |
| 598 | + * <p> <sup>4</sup> For {@code 'd'}, {@code 'o'}, {@code 'x'}, and | |
| 599 | + * {@code 'X'} conversions applied to {@link java.math.BigInteger BigInteger} | |
| 600 | + * or {@code 'd'} applied to {@code byte}, {@link Byte}, {@code short}, {@link | |
| 601 | + * Short}, {@code int} and {@link Integer}, {@code long}, and {@link Long}. | |
| 602 | + * | |
| 603 | + * <p> <sup>5</sup> For {@code 'e'}, {@code 'E'}, {@code 'f'}, | |
| 604 | + * {@code 'g'}, and {@code 'G'} 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 {@code 'e'}, {@code 'E'}, and | |
| 621 | + * {@code 'f'} the precision is the number of digits after the decimal | |
| 622 | + * separator. If the conversion is {@code 'g'} or {@code 'G'}, then the | |
| 623 | + * precision is the total number of digits in the resulting magnitude after | |
| 624 | + * rounding. If the conversion is {@code 'a'} or {@code 'A'}, 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 | + * "{@code 1$}", the second by "{@code 2$}", etc. | |
| 636 | + * | |
| 637 | + * <p> Another way to reference arguments by position is to use the | |
| 638 | + * {@code '<'} (<tt>'\u003c'</tt>) flag, which causes the argument for | |
| 639 | + * the previous format specifier to be re-used. For example, the following two | |
| 640 | + * statements would produce identical strings: | |
| 641 | + * | |
| 642 | + * <blockquote><pre> | |
| 643 | + * Calendar c = ...; | |
| 644 | + * String s1 = String.format("Duke's Birthday: %1$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 {@code format} | |
| 673 | + * methods of {@code Formatter} as well as by any {@code format} 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. {@code 'B'}, | |
| 678 | + * {@code 'H'}, {@code 'S'}, {@code 'C'}, {@code 'X'}, {@code 'E'}, | |
| 679 | + * {@code 'G'}, {@code 'A'}, and {@code 'T'}) 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"> {@code 'b'} | |
| 695 | + * <td valign="top"> <tt>'\u0062'</tt> | |
| 696 | + * <td> Produces either "{@code true}" or "{@code false}" as returned by | |
| 697 | + * {@link Boolean#toString(boolean)}. | |
| 698 | + * | |
| 699 | + * <p> If the argument is {@code null}, then the result is | |
| 700 | + * "{@code false}". If the argument is a {@code boolean} or {@link | |
| 701 | + * Boolean}, then the result is the string returned by {@link | |
| 702 | + * String#valueOf(boolean) String.valueOf()}. Otherwise, the result is | |
| 703 | + * "{@code true}". | |
| 704 | + * | |
| 705 | + * <p> If the {@code '#'} flag is given, then a {@link | |
| 706 | + * FormatFlagsConversionMismatchException} will be thrown. | |
| 707 | + * | |
| 708 | + * <tr><td valign="top"> {@code 'B'} | |
| 709 | + * <td valign="top"> <tt>'\u0042'</tt> | |
| 710 | + * <td> The upper-case variant of {@code 'b'}. | |
| 711 | + * | |
| 712 | + * <tr><td valign="top"> {@code 'h'} | |
| 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 {@code null}, then the | |
| 717 | + * result is "{@code null}". Otherwise, the result is obtained | |
| 718 | + * by invoking {@code Integer.toHexString(arg.hashCode())}. | |
| 719 | + * | |
| 720 | + * <p> If the {@code '#'} flag is given, then a {@link | |
| 721 | + * FormatFlagsConversionMismatchException} will be thrown. | |
| 722 | + * | |
| 723 | + * <tr><td valign="top"> {@code 'H'} | |
| 724 | + * <td valign="top"> <tt>'\u0048'</tt> | |
| 725 | + * <td> The upper-case variant of {@code 'h'}. | |
| 726 | + * | |
| 727 | + * <tr><td valign="top"> {@code 's'} | |
| 728 | + * <td valign="top"> <tt>'\u0073'</tt> | |
| 729 | + * <td> Produces a string. | |
| 730 | + * | |
| 731 | + * <p> If the argument is {@code null}, then the result is | |
| 732 | + * "{@code null}". 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 | + * {@code toString()} method. | |
| 736 | + * | |
| 737 | + * <p> If the {@code '#'} 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"> {@code 'S'} | |
| 742 | + * <td valign="top"> <tt>'\u0053'</tt> | |
| 743 | + * <td> The upper-case variant of {@code 's'}. | |
| 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"> {@code '-'} | |
| 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"> {@code '#'} | |
| 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 {@code '-'} 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 {@code precision} 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 {@code char} and {@link Character}. It | |
| 784 | + * may also be applied to the types {@code byte}, {@link Byte}, | |
| 785 | + * {@code short}, and {@link Short}, {@code int} and {@link Integer} when | |
| 786 | + * {@link Character#isValidCodePoint} returns {@code true}. If it returns | |
| 787 | + * {@code false} then an {@link IllegalFormatCodePointException} will be | |
| 788 | + * thrown. | |
| 789 | + * | |
| 790 | + * <table cellpadding=5 summary="charConv"> | |
| 791 | + * | |
| 792 | + * <tr><td valign="top"> {@code 'c'} | |
| 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 {@code char} in | |
| 797 | + * the case where the argument represents a supplementary character. | |
| 798 | + * | |
| 799 | + * <p> If the {@code '#'} flag is given, then a {@link | |
| 800 | + * FormatFlagsConversionMismatchException} will be thrown. | |
| 801 | + * | |
| 802 | + * <tr><td valign="top"> {@code 'C'} | |
| 803 | + * <td valign="top"> <tt>'\u0043'</tt> | |
| 804 | + * <td> The upper-case variant of {@code 'c'}. | |
| 805 | + * | |
| 806 | + * </table> | |
| 807 | + * | |
| 808 | + * <p> The {@code '-'} flag defined for <a href="#dFlags">General | |
| 809 | + * conversions</a> applies. If the {@code '#'} 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="#dnbdec"><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> {@code '0'} | |
| 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 {@code ','} (<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 {@code '0'} 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 {@code '('} flag is given, then a | |
| 867 | + * {@code '('} (<tt>'\u0028'</tt>) is prepended and a {@code ')'} | |
| 868 | + * (<tt>'\u0029'</tt>) is appended. | |
| 869 | + * | |
| 870 | + * <li> If the value is negative (or floating-point negative zero) and | |
| 871 | + * {@code '('} flag is not given, then a {@code '-'} (<tt>'\u002d'</tt>) | |
| 872 | + * is prepended. | |
| 873 | + * | |
| 874 | + * <li> If the {@code '+'} flag is given and the value is positive or zero (or | |
| 875 | + * floating-point positive zero), then a {@code '+'} (<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 {@code '('} 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 {@code byte}, {@link Byte}, | |
| 888 | + * {@code short}, {@link Short}, {@code int} and {@link Integer}, | |
| 889 | + * {@code long}, and {@link Long}. | |
| 890 | + * | |
| 891 | + * <table cellpadding=5 summary="IntConv"> | |
| 892 | + * | |
| 893 | + * <tr><td valign="top"> {@code 'd'} | |
| 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 {@code '0'} flag is given and the value is negative, then | |
| 899 | + * the zero padding will occur after the sign. | |
| 900 | + * | |
| 901 | + * <p> If the {@code '#'} flag is given then a {@link | |
| 902 | + * FormatFlagsConversionMismatchException} will be thrown. | |
| 903 | + * | |
| 904 | + * <tr><td valign="top"> {@code 'o'} | |
| 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 {@code n} is the | |
| 911 | + * number of bits in the type as returned by the static {@code SIZE} 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 {@code '#'} flag is given then the output will always begin | |
| 917 | + * with the radix indicator {@code '0'}. | |
| 918 | + * | |
| 919 | + * <p> If the {@code '0'} 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 {@code '('}, {@code '+'}, '  ', or {@code ','} flags | |
| 923 | + * are given then a {@link FormatFlagsConversionMismatchException} will be | |
| 924 | + * thrown. | |
| 925 | + * | |
| 926 | + * <tr><td valign="top"> {@code 'x'} | |
| 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 {@code n} is the | |
| 933 | + * number of bits in the type as returned by the static {@code SIZE} 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 {@code '#'} flag is given then the output will always begin | |
| 939 | + * with the radix indicator {@code "0x"}. | |
| 940 | + * | |
| 941 | + * <p> If the {@code '0'} 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 {@code '('}, <tt>' '</tt>, {@code '+'}, or | |
| 946 | + * {@code ','} flags are given then a {@link | |
| 947 | + * FormatFlagsConversionMismatchException} will be thrown. | |
| 948 | + * | |
| 949 | + * <tr><td valign="top"> {@code 'X'} | |
| 950 | + * <td valign="top"> <tt>'\u0058'</tt> | |
| 951 | + * <td> The upper-case variant of {@code 'x'}. The entire string | |
| 952 | + * representing the number will be converted to {@linkplain | |
| 953 | + * String#toUpperCase upper case} including the {@code 'x'} (if any) and | |
| 954 | + * all hexadecimal digits {@code 'a'} - {@code 'f'} | |
| 955 | + * (<tt>'\u0061'</tt> - <tt>'\u0066'</tt>). | |
| 956 | + * | |
| 957 | + * </table> | |
| 958 | + * | |
| 959 | + * <p> If the conversion is {@code 'o'}, {@code 'x'}, or {@code 'X'} and | |
| 960 | + * both the {@code '#'} and the {@code '0'} flags are given, then result will | |
| 961 | + * contain the radix indicator ({@code '0'} for octal and {@code "0x"} or | |
| 962 | + * {@code "0X"} for hexadecimal), some number of zeros (based on the width), | |
| 963 | + * and the value. | |
| 964 | + * | |
| 965 | + * <p> If the {@code '-'} 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"> {@code '+'} | |
| 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 {@code '+'} 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 {@code '+'} and <tt>' '</tt> flags are given | |
| 988 | + * then an {@link IllegalFormatFlagsException} will be thrown. | |
| 989 | + * | |
| 990 | + * <tr><td valign="top"> {@code '0'} | |
| 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 {@code '-'} and {@code '0'} flags are given then an | |
| 999 | + * {@link IllegalFormatFlagsException} will be thrown. | |
| 1000 | + * | |
| 1001 | + * <tr><td valign="top"> {@code ','} | |
| 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"> {@code '('} | |
| 1009 | + * <td valign="top"> <tt>'\u0028'</tt> | |
| 1010 | + * <td> Requires the output to prepend a {@code '('} | |
| 1011 | + * (<tt>'\u0028'</tt>) and append a {@code ')'} | |
| 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 {@code width} | |
| 1022 | + * | |
| 1023 | + * <li> Negative numbers begin with a {@code '-'} (<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 {@code '-'} 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"> {@code 'd'} | |
| 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 {@code '#'} flag is given {@link | |
| 1057 | + * FormatFlagsConversionMismatchException} will be thrown. | |
| 1058 | + * | |
| 1059 | + * <tr><td valign="top"> {@code 'o'} | |
| 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 {@code '-'} (<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 {@code '+'} flag is given | |
| 1071 | + * then the result will begin with {@code '+'} (<tt>'\u002b'</tt>). | |
| 1072 | + * | |
| 1073 | + * <p> If the {@code '#'} flag is given then the output will always begin | |
| 1074 | + * with {@code '0'} prefix. | |
| 1075 | + * | |
| 1076 | + * <p> If the {@code '0'} 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 {@code ','} flag is given then a {@link | |
| 1080 | + * FormatFlagsConversionMismatchException} will be thrown. | |
| 1081 | + * | |
| 1082 | + * <tr><td valign="top"> {@code 'x'} | |
| 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 {@code '-'} (<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 {@code '+'} flag is given | |
| 1094 | + * then the result will begin with {@code '+'} (<tt>'\u002b'</tt>). | |
| 1095 | + * | |
| 1096 | + * <p> If the {@code '#'} flag is given then the output will always begin | |
| 1097 | + * with the radix indicator {@code "0x"}. | |
| 1098 | + * | |
| 1099 | + * <p> If the {@code '0'} 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 {@code ','} flag is given then a {@link | |
| 1104 | + * FormatFlagsConversionMismatchException} will be thrown. | |
| 1105 | + * | |
| 1106 | + * <tr><td valign="top"> {@code 'X'} | |
| 1107 | + * <td valign="top"> <tt>'\u0058'</tt> | |
| 1108 | + * <td> The upper-case variant of {@code 'x'}. The entire string | |
| 1109 | + * representing the number will be converted to {@linkplain | |
| 1110 | + * String#toUpperCase upper case} including the {@code 'x'} (if any) and | |
| 1111 | + * all hexadecimal digits {@code 'a'} - {@code 'f'} | |
| 1112 | + * (<tt>'\u0061'</tt> - <tt>'\u0066'</tt>). | |
| 1113 | + * | |
| 1114 | + * </table> | |
| 1115 | + * | |
| 1116 | + * <p> If the conversion is {@code 'o'}, {@code 'x'}, or {@code 'X'} and | |
| 1117 | + * both the {@code '#'} and the {@code '0'} flags are given, then result will | |
| 1118 | + * contain the base indicator ({@code '0'} for octal and {@code "0x"} or | |
| 1119 | + * {@code "0X"} for hexadecimal), some number of zeros (based on the width), | |
| 1120 | + * and the value. | |
| 1121 | + * | |
| 1122 | + * <p> If the {@code '0'} flag is given and the value is negative, then the | |
| 1123 | + * zero padding will occur after the sign. | |
| 1124 | + * | |
| 1125 | + * <p> If the {@code '-'} 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 {@code float}, {@link | |
| 1141 | + * Float}, {@code double} and {@link Double}. | |
| 1142 | + * | |
| 1143 | + * <table cellpadding=5 summary="floatConv"> | |
| 1144 | + * | |
| 1145 | + * <tr><td valign="top"> {@code 'e'} | |
| 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 {@code "+00"}. | |
| 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 {@code 'e'} | |
| 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 {@code 6}. 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 {@code ','} flag is given, then an {@link | |
| 1191 | + * FormatFlagsConversionMismatchException} will be thrown. | |
| 1192 | + * | |
| 1193 | + * <tr><td valign="top"> {@code 'E'} | |
| 1194 | + * <td valign="top"> <tt>'\u0045'</tt> | |
| 1195 | + * <td> The upper-case variant of {@code 'e'}. The exponent symbol | |
| 1196 | + * will be {@code 'E'} (<tt>'\u0045'</tt>). | |
| 1197 | + * | |
| 1198 | + * <tr><td valign="top"> {@code 'g'} | |
| 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 | + * {@code 6}. If the precision is {@code 0}, then it is taken to be | |
| 1218 | + * {@code 1}. | |
| 1219 | + * | |
| 1220 | + * <p> If the {@code '#'} flag is given then an {@link | |
| 1221 | + * FormatFlagsConversionMismatchException} will be thrown. | |
| 1222 | + * | |
| 1223 | + * <tr><td valign="top"> {@code 'G'} | |
| 1224 | + * <td valign="top"> <tt>'\u0047'</tt> | |
| 1225 | + * <td> The upper-case variant of {@code 'g'}. | |
| 1226 | + * | |
| 1227 | + * <tr><td valign="top"> {@code 'f'} | |
| 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 {@code 6}. 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"> {@code 'a'} | |
| 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 {@code '-'} (<tt>'\u002d'</tt>). | |
| 1269 | + * | |
| 1270 | + * <p> If <i>x</i> is positive or a positive-zero value and the | |
| 1271 | + * {@code '+'} flag is given then the result will begin with {@code '+'} | |
| 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 | + * {@code "0x0.0p0"}. | |
| 1283 | + * | |
| 1284 | + * <li> If <i>m</i> is a {@code double} 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 | + * {@code "0x1."} followed by the hexadecimal representation of the rest | |
| 1288 | + * of the significand as a fraction. The exponent is represented by | |
| 1289 | + * {@code 'p'} (<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 {@code double} value with a subnormal | |
| 1294 | + * representation then the significand is represented by the characters | |
| 1295 | + * {@code '0x0.'} followed by the hexadecimal representation of the rest | |
| 1296 | + * of the significand as a fraction. The exponent is represented by | |
| 1297 | + * {@code 'p-1022'}. Note that there must be at least one nonzero digit | |
| 1298 | + * in a subnormal significand. | |
| 1299 | + * | |
| 1300 | + * </ul> | |
| 1301 | + * | |
| 1302 | + * <p> If the {@code '('} or {@code ','} flags are given, then a {@link | |
| 1303 | + * FormatFlagsConversionMismatchException} will be thrown. | |
| 1304 | + * | |
| 1305 | + * <tr><td valign="top"> {@code 'A'} | |
| 1306 | + * <td valign="top"> <tt>'\u0041'</tt> | |
| 1307 | + * <td> The upper-case variant of {@code 'a'}. The entire string | |
| 1308 | + * representing the number will be converted to upper case including the | |
| 1309 | + * {@code 'x'} (<tt>'\u0078'</tt>) and {@code 'p'} | |
| 1310 | + * (<tt>'\u0070'</tt> and all hexadecimal digits {@code 'a'} - | |
| 1311 | + * {@code 'f'} (<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 {@code '#'} 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 {@code width} | |
| 1327 | + * | |
| 1328 | + * <li> Negative numbers begin with a {@code '-'} | |
| 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 | + * {@code '-'} 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 {@code 'e'}, | |
| 1350 | + * {@code 'E'} or {@code 'f'}, 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 {@code 6}. | |
| 1353 | + * | |
| 1354 | + * <p> If the conversion is {@code 'g'} or {@code 'G'}, 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 | + * {@code 6}. If the precision is {@code 0}, then it is taken to be | |
| 1358 | + * {@code 1}. | |
| 1359 | + * | |
| 1360 | + * <p> If the conversion is {@code 'a'} or {@code 'A'}, 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="dnbdec"><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"> {@code 'e'} | |
| 1373 | + * <td valign="top"> <tt>'\u0065'</tt> | |
| 1374 | + * <td> Requires the output to be formatted using <a | |
| 1375 | + * name="bscientific">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 {@code "+00"}. | |
| 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 {@code 'e'} | |
| 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 {@code 6}. If the precision is | |
| 1404 | + * less than the number of digits to the right of the decimal point then | |
| 1405 | + * the value will be rounded using the | |
| 1406 | + * {@linkplain java.math.BigDecimal#ROUND_HALF_UP round half up | |
| 1407 | + * algorithm}. Otherwise, zeros may be appended to reach the precision. | |
| 1408 | + * For a canonical representation of the value, use {@link | |
| 1409 | + * BigDecimal#toString()}. | |
| 1410 | + * | |
| 1411 | + * <p> If the {@code ','} flag is given, then an {@link | |
| 1412 | + * FormatFlagsConversionMismatchException} will be thrown. | |
| 1413 | + * | |
| 1414 | + * <tr><td valign="top"> {@code 'E'} | |
| 1415 | + * <td valign="top"> <tt>'\u0045'</tt> | |
| 1416 | + * <td> The upper-case variant of {@code 'e'}. The exponent symbol | |
| 1417 | + * will be {@code 'E'} (<tt>'\u0045'</tt>). | |
| 1418 | + * | |
| 1419 | + * <tr><td valign="top"> {@code 'g'} | |
| 1420 | + * <td valign="top"> <tt>'\u0067'</tt> | |
| 1421 | + * <td> Requires the output to be formatted in general scientific notation | |
| 1422 | + * as described below. The <a href="#l10n algorithm">localization | |
| 1423 | + * algorithm</a> is applied. | |
| 1424 | + * | |
| 1425 | + * <p> After rounding for the precision, the formatting of the resulting | |
| 1426 | + * magnitude <i>m</i> depends on its value. | |
| 1427 | + * | |
| 1428 | + * <p> If <i>m</i> is greater than or equal to 10<sup>-4</sup> but less | |
| 1429 | + * than 10<sup>precision</sup> then it is represented in <i><a | |
| 1430 | + * href="#bdecimal">decimal format</a></i>. | |
| 1431 | + * | |
| 1432 | + * <p> If <i>m</i> is less than 10<sup>-4</sup> or greater than or equal to | |
| 1433 | + * 10<sup>precision</sup>, then it is represented in <i><a | |
| 1434 | + * href="#bscientific">computerized scientific notation</a></i>. | |
| 1435 | + * | |
| 1436 | + * <p> The total number of significant digits in <i>m</i> is equal to the | |
| 1437 | + * precision. If the precision is not specified, then the default value is | |
| 1438 | + * {@code 6}. If the precision is {@code 0}, then it is taken to be | |
| 1439 | + * {@code 1}. | |
| 1440 | + * | |
| 1441 | + * <p> If the {@code '#'} flag is given then an {@link | |
| 1442 | + * FormatFlagsConversionMismatchException} will be thrown. | |
| 1443 | + * | |
| 1444 | + * <tr><td valign="top"> {@code 'G'} | |
| 1445 | + * <td valign="top"> <tt>'\u0047'</tt> | |
| 1446 | + * <td> The upper-case variant of {@code 'g'}. | |
| 1447 | + * | |
| 1448 | + * <tr><td valign="top"> {@code 'f'} | |
| 1449 | + * <td valign="top"> <tt>'\u0066'</tt> | |
| 1450 | + * <td> Requires the output to be formatted using <a name="bdecimal">decimal | |
| 1451 | + * format</a>. The <a href="#l10n algorithm">localization algorithm</a> is | |
| 1452 | + * applied. | |
| 1453 | + * | |
| 1454 | + * <p> The result is a string that represents the sign and magnitude | |
| 1455 | + * (absolute value) of the argument. The formatting of the sign is | |
| 1456 | + * described in the <a href="#l10n algorithm">localization | |
| 1457 | + * algorithm</a>. The formatting of the magnitude <i>m</i> depends upon its | |
| 1458 | + * value. | |
| 1459 | + * | |
| 1460 | + * <p> The magnitude is formatted as the integer part of <i>m</i>, with no | |
| 1461 | + * leading zeroes, followed by the decimal separator followed by one or | |
| 1462 | + * more decimal digits representing the fractional part of <i>m</i>. | |
| 1463 | + * | |
| 1464 | + * <p> The number of digits in the result for the fractional part of | |
| 1465 | + * <i>m</i> or <i>a</i> is equal to the precision. If the precision is not | |
| 1466 | + * specified then the default value is {@code 6}. If the precision is | |
| 1467 | + * less than the number of digits to the right of the decimal point | |
| 1468 | + * then the value will be rounded using the | |
| 1469 | + * {@linkplain java.math.BigDecimal#ROUND_HALF_UP round half up | |
| 1470 | + * algorithm}. Otherwise, zeros may be appended to reach the precision. | |
| 1471 | + * For a canonical representation of the value, use {@link | |
| 1472 | + * BigDecimal#toString()}. | |
| 1473 | + * | |
| 1474 | + * </table> | |
| 1475 | + * | |
| 1476 | + * <p> All <a href="#intFlags">flags</a> defined for Byte, Short, Integer, and | |
| 1477 | + * Long apply. | |
| 1478 | + * | |
| 1479 | + * <p> If the {@code '#'} flag is given, then the decimal separator will | |
| 1480 | + * always be present. | |
| 1481 | + * | |
| 1482 | + * <p> The <a href="#floatdFlags">default behavior</a> when no flags are | |
| 1483 | + * given is the same as for Float and Double. | |
| 1484 | + * | |
| 1485 | + * <p> The specification of <a href="#floatDWidth">width</a> and <a | |
| 1486 | + * href="#floatDPrec">precision</a> is the same as defined for Float and | |
| 1487 | + * Double. | |
| 1488 | + * | |
| 1489 | + * <h4><a name="ddt">Date/Time</a></h4> | |
| 1490 | + * | |
| 1491 | + * <p> This conversion may be applied to {@code long}, {@link Long}, {@link | |
| 1492 | + * Calendar}, and {@link Date}. | |
| 1493 | + * | |
| 1494 | + * <table cellpadding=5 summary="DTConv"> | |
| 1495 | + * | |
| 1496 | + * <tr><td valign="top"> {@code 't'} | |
| 1497 | + * <td valign="top"> <tt>'\u0074'</tt> | |
| 1498 | + * <td> Prefix for date and time conversion characters. | |
| 1499 | + * <tr><td valign="top"> {@code 'T'} | |
| 1500 | + * <td valign="top"> <tt>'\u0054'</tt> | |
| 1501 | + * <td> The upper-case variant of {@code 't'}. | |
| 1502 | + * | |
| 1503 | + * </table> | |
| 1504 | + * | |
| 1505 | + * <p> The following date and time conversion character suffixes are defined | |
| 1506 | + * for the {@code 't'} and {@code 'T'} conversions. The types are similar to | |
| 1507 | + * but not completely identical to those defined by GNU {@code date} and | |
| 1508 | + * POSIX {@code strftime(3c)}. Additional conversion types are provided to | |
| 1509 | + * access Java-specific functionality (e.g. {@code 'L'} for milliseconds | |
| 1510 | + * within the second). | |
| 1511 | + * | |
| 1512 | + * <p> The following conversion characters are used for formatting times: | |
| 1513 | + * | |
| 1514 | + * <table cellpadding=5 summary="time"> | |
| 1515 | + * | |
| 1516 | + * <tr><td valign="top"> {@code 'H'} | |
| 1517 | + * <td valign="top"> <tt>'\u0048'</tt> | |
| 1518 | + * <td> Hour of the day for the 24-hour clock, formatted as two digits with | |
| 1519 | + * a leading zero as necessary i.e. {@code 00 - 23}. {@code 00} | |
| 1520 | + * corresponds to midnight. | |
| 1521 | + * | |
| 1522 | + * <tr><td valign="top">{@code 'I'} | |
| 1523 | + * <td valign="top"> <tt>'\u0049'</tt> | |
| 1524 | + * <td> Hour for the 12-hour clock, formatted as two digits with a leading | |
| 1525 | + * zero as necessary, i.e. {@code 01 - 12}. {@code 01} corresponds to | |
| 1526 | + * one o'clock (either morning or afternoon). | |
| 1527 | + * | |
| 1528 | + * <tr><td valign="top">{@code 'k'} | |
| 1529 | + * <td valign="top"> <tt>'\u006b'</tt> | |
| 1530 | + * <td> Hour of the day for the 24-hour clock, i.e. {@code 0 - 23}. | |
| 1531 | + * {@code 0} corresponds to midnight. | |
| 1532 | + * | |
| 1533 | + * <tr><td valign="top">{@code 'l'} | |
| 1534 | + * <td valign="top"> <tt>'\u006c'</tt> | |
| 1535 | + * <td> Hour for the 12-hour clock, i.e. {@code 1 - 12}. {@code 1} | |
| 1536 | + * corresponds to one o'clock (either morning or afternoon). | |
| 1537 | + * | |
| 1538 | + * <tr><td valign="top">{@code 'M'} | |
| 1539 | + * <td valign="top"> <tt>'\u004d'</tt> | |
| 1540 | + * <td> Minute within the hour formatted as two digits with a leading zero | |
| 1541 | + * as necessary, i.e. {@code 00 - 59}. | |
| 1542 | + * | |
| 1543 | + * <tr><td valign="top">{@code 'S'} | |
| 1544 | + * <td valign="top"> <tt>'\u0053'</tt> | |
| 1545 | + * <td> Seconds within the minute, formatted as two digits with a leading | |
| 1546 | + * zero as necessary, i.e. {@code 00 - 60} ("{@code 60}" is a special | |
| 1547 | + * value required to support leap seconds). | |
| 1548 | + * | |
| 1549 | + * <tr><td valign="top">{@code 'L'} | |
| 1550 | + * <td valign="top"> <tt>'\u004c'</tt> | |
| 1551 | + * <td> Millisecond within the second formatted as three digits with | |
| 1552 | + * leading zeros as necessary, i.e. {@code 000 - 999}. | |
| 1553 | + * | |
| 1554 | + * <tr><td valign="top">{@code 'N'} | |
| 1555 | + * <td valign="top"> <tt>'\u004e'</tt> | |
| 1556 | + * <td> Nanosecond within the second, formatted as nine digits with leading | |
| 1557 | + * zeros as necessary, i.e. {@code 000000000 - 999999999}. The precision | |
| 1558 | + * of this value is limited by the resolution of the underlying operating | |
| 1559 | + * system or hardware. | |
| 1560 | + * | |
| 1561 | + * <tr><td valign="top">{@code 'p'} | |
| 1562 | + * <td valign="top"> <tt>'\u0070'</tt> | |
| 1563 | + * <td> Locale-specific {@linkplain | |
| 1564 | + * java.text.DateFormatSymbols#getAmPmStrings morning or afternoon} marker | |
| 1565 | + * in lower case, e.g."{@code am}" or "{@code pm}". Use of the | |
| 1566 | + * conversion prefix {@code 'T'} forces this output to upper case. (Note | |
| 1567 | + * that {@code 'p'} produces lower-case output. This is different from | |
| 1568 | + * GNU {@code date} and POSIX {@code strftime(3c)} which produce | |
| 1569 | + * upper-case output.) | |
| 1570 | + * | |
| 1571 | + * <tr><td valign="top">{@code 'z'} | |
| 1572 | + * <td valign="top"> <tt>'\u007a'</tt> | |
| 1573 | + * <td> <a href="http://www.ietf.org/rfc/rfc0822.txt">RFC 822</a> | |
| 1574 | + * style numeric time zone offset from GMT, e.g. {@code -0800}. This | |
| 1575 | + * value will be adjusted as necessary for Daylight Saving Time. For | |
| 1576 | + * {@code long}, {@link Long}, and {@link Date} the time zone used is | |
| 1577 | + * the {@linkplain TimeZone#getDefault() default time zone} for this | |
| 1578 | + * instance of the Java virtual machine. | |
| 1579 | + * | |
| 1580 | + * <tr><td valign="top">{@code 'Z'} | |
| 1581 | + * <td valign="top"> <tt>'\u005a'</tt> | |
| 1582 | + * <td> A string representing the abbreviation for the time zone. This | |
| 1583 | + * value will be adjusted as necessary for Daylight Saving Time. For | |
| 1584 | + * {@code long}, {@link Long}, and {@link Date} the time zone used is | |
| 1585 | + * the {@linkplain TimeZone#getDefault() default time zone} for this | |
| 1586 | + * instance of the Java virtual machine. The Formatter's locale will | |
| 1587 | + * supersede the locale of the argument (if any). | |
| 1588 | + * | |
| 1589 | + * <tr><td valign="top">{@code 's'} | |
| 1590 | + * <td valign="top"> <tt>'\u0073'</tt> | |
| 1591 | + * <td> Seconds since the beginning of the epoch starting at 1 January 1970 | |
| 1592 | + * {@code 00:00:00} UTC, i.e. {@code Long.MIN_VALUE/1000} to | |
| 1593 | + * {@code Long.MAX_VALUE/1000}. | |
| 1594 | + * | |
| 1595 | + * <tr><td valign="top">{@code 'Q'} | |
| 1596 | + * <td valign="top"> <tt>'\u004f'</tt> | |
| 1597 | + * <td> Milliseconds since the beginning of the epoch starting at 1 January | |
| 1598 | + * 1970 {@code 00:00:00} UTC, i.e. {@code Long.MIN_VALUE} to | |
| 1599 | + * {@code Long.MAX_VALUE}. The precision of this value is limited by | |
| 1600 | + * the resolution of the underlying operating system or hardware. | |
| 1601 | + * | |
| 1602 | + * </table> | |
| 1603 | + * | |
| 1604 | + * <p> The following conversion characters are used for formatting dates: | |
| 1605 | + * | |
| 1606 | + * <table cellpadding=5 summary="date"> | |
| 1607 | + * | |
| 1608 | + * <tr><td valign="top">{@code 'B'} | |
| 1609 | + * <td valign="top"> <tt>'\u0042'</tt> | |
| 1610 | + * <td> Locale-specific {@linkplain java.text.DateFormatSymbols#getMonths | |
| 1611 | + * full month name}, e.g. {@code "January"}, {@code "February"}. | |
| 1612 | + * | |
| 1613 | + * <tr><td valign="top">{@code 'b'} | |
| 1614 | + * <td valign="top"> <tt>'\u0062'</tt> | |
| 1615 | + * <td> Locale-specific {@linkplain | |
| 1616 | + * java.text.DateFormatSymbols#getShortMonths abbreviated month name}, | |
| 1617 | + * e.g. {@code "Jan"}, {@code "Feb"}. | |
| 1618 | + * | |
| 1619 | + * <tr><td valign="top">{@code 'h'} | |
| 1620 | + * <td valign="top"> <tt>'\u0068'</tt> | |
| 1621 | + * <td> Same as {@code 'b'}. | |
| 1622 | + * | |
| 1623 | + * <tr><td valign="top">{@code 'A'} | |
| 1624 | + * <td valign="top"> <tt>'\u0041'</tt> | |
| 1625 | + * <td> Locale-specific full name of the {@linkplain | |
| 1626 | + * java.text.DateFormatSymbols#getWeekdays day of the week}, | |
| 1627 | + * e.g. {@code "Sunday"}, {@code "Monday"} | |
| 1628 | + * | |
| 1629 | + * <tr><td valign="top">{@code 'a'} | |
| 1630 | + * <td valign="top"> <tt>'\u0061'</tt> | |
| 1631 | + * <td> Locale-specific short name of the {@linkplain | |
| 1632 | + * java.text.DateFormatSymbols#getShortWeekdays day of the week}, | |
| 1633 | + * e.g. {@code "Sun"}, {@code "Mon"} | |
| 1634 | + * | |
| 1635 | + * <tr><td valign="top">{@code 'C'} | |
| 1636 | + * <td valign="top"> <tt>'\u0043'</tt> | |
| 1637 | + * <td> Four-digit year divided by {@code 100}, formatted as two digits | |
| 1638 | + * with leading zero as necessary, i.e. {@code 00 - 99} | |
| 1639 | + * | |
| 1640 | + * <tr><td valign="top">{@code 'Y'} | |
| 1641 | + * <td valign="top"> <tt>'\u0059'</tt> <td> Year, formatted to at least | |
| 1642 | + * four digits with leading zeros as necessary, e.g. {@code 0092} equals | |
| 1643 | + * {@code 92} CE for the Gregorian calendar. | |
| 1644 | + * | |
| 1645 | + * <tr><td valign="top">{@code 'y'} | |
| 1646 | + * <td valign="top"> <tt>'\u0079'</tt> | |
| 1647 | + * <td> Last two digits of the year, formatted with leading zeros as | |
| 1648 | + * necessary, i.e. {@code 00 - 99}. | |
| 1649 | + * | |
| 1650 | + * <tr><td valign="top">{@code 'j'} | |
| 1651 | + * <td valign="top"> <tt>'\u006a'</tt> | |
| 1652 | + * <td> Day of year, formatted as three digits with leading zeros as | |
| 1653 | + * necessary, e.g. {@code 001 - 366} for the Gregorian calendar. | |
| 1654 | + * {@code 001} corresponds to the first day of the year. | |
| 1655 | + * | |
| 1656 | + * <tr><td valign="top">{@code 'm'} | |
| 1657 | + * <td valign="top"> <tt>'\u006d'</tt> | |
| 1658 | + * <td> Month, formatted as two digits with leading zeros as necessary, | |
| 1659 | + * i.e. {@code 01 - 13}, where "{@code 01}" is the first month of the | |
| 1660 | + * year and ("{@code 13}" is a special value required to support lunar | |
| 1661 | + * calendars). | |
| 1662 | + * | |
| 1663 | + * <tr><td valign="top">{@code 'd'} | |
| 1664 | + * <td valign="top"> <tt>'\u0064'</tt> | |
| 1665 | + * <td> Day of month, formatted as two digits with leading zeros as | |
| 1666 | + * necessary, i.e. {@code 01 - 31}, where "{@code 01}" is the first day | |
| 1667 | + * of the month. | |
| 1668 | + * | |
| 1669 | + * <tr><td valign="top">{@code 'e'} | |
| 1670 | + * <td valign="top"> <tt>'\u0065'</tt> | |
| 1671 | + * <td> Day of month, formatted as two digits, i.e. {@code 1 - 31} where | |
| 1672 | + * "{@code 1}" is the first day of the month. | |
| 1673 | + * | |
| 1674 | + * </table> | |
| 1675 | + * | |
| 1676 | + * <p> The following conversion characters are used for formatting common | |
| 1677 | + * date/time compositions. | |
| 1678 | + * | |
| 1679 | + * <table cellpadding=5 summary="composites"> | |
| 1680 | + * | |
| 1681 | + * <tr><td valign="top">{@code 'R'} | |
| 1682 | + * <td valign="top"> <tt>'\u0052'</tt> | |
| 1683 | + * <td> Time formatted for the 24-hour clock as {@code "%tH:%tM"} | |
| 1684 | + * | |
| 1685 | + * <tr><td valign="top">{@code 'T'} | |
| 1686 | + * <td valign="top"> <tt>'\u0054'</tt> | |
| 1687 | + * <td> Time formatted for the 24-hour clock as {@code "%tH:%tM:%tS"}. | |
| 1688 | + * | |
| 1689 | + * <tr><td valign="top">{@code 'r'} | |
| 1690 | + * <td valign="top"> <tt>'\u0072'</tt> | |
| 1691 | + * <td> Time formatted for the 12-hour clock as {@code "%tI:%tM:%tS | |
| 1692 | + * %Tp"}. The location of the morning or afternoon marker | |
| 1693 | + * ({@code '%Tp'}) may be locale-dependent. | |
| 1694 | + * | |
| 1695 | + * <tr><td valign="top">{@code 'D'} | |
| 1696 | + * <td valign="top"> <tt>'\u0044'</tt> | |
| 1697 | + * <td> Date formatted as {@code "%tm/%td/%ty"}. | |
| 1698 | + * | |
| 1699 | + * <tr><td valign="top">{@code 'F'} | |
| 1700 | + * <td valign="top"> <tt>'\u0046'</tt> | |
| 1701 | + * <td> <a href="http://www.w3.org/TR/NOTE-datetime">ISO 8601</a> | |
| 1702 | + * complete date formatted as {@code "%tY-%tm-%td"}. | |
| 1703 | + * | |
| 1704 | + * <tr><td valign="top">{@code 'c'} | |
| 1705 | + * <td valign="top"> <tt>'\u0063'</tt> | |
| 1706 | + * <td> Date and time formatted as {@code "%ta %tb %td %tT %tZ %tY"}, | |
| 1707 | + * e.g. {@code "Sun Jul 20 16:17:00 EDT 1969"}. | |
| 1708 | + * | |
| 1709 | + * </table> | |
| 1710 | + * | |
| 1711 | + * <p> The {@code '-'} flag defined for <a href="#dFlags">General | |
| 1712 | + * conversions</a> applies. If the {@code '#'} flag is given, then a {@link | |
| 1713 | + * FormatFlagsConversionMismatchException} will be thrown. | |
| 1714 | + * | |
| 1715 | + * <p> The <a name="dtWidth">width</a> is the minimum number of characters to | |
| 1716 | + * be written to the output. If the length of the converted value is less than | |
| 1717 | + * the {@code width} then the output will be padded by spaces | |
| 1718 | + * (<tt>'\u0020'</tt>) until the total number of characters equals width. | |
| 1719 | + * The padding is on the left by default. If the {@code '-'} flag is given | |
| 1720 | + * then the padding will be on the right. If width is not specified then there | |
| 1721 | + * is no minimum. | |
| 1722 | + * | |
| 1723 | + * <p> The precision is not applicable. If the precision is specified then an | |
| 1724 | + * {@link IllegalFormatPrecisionException} will be thrown. | |
| 1725 | + * | |
| 1726 | + * <h4><a name="dper">Percent</a></h4> | |
| 1727 | + * | |
| 1728 | + * <p> The conversion does not correspond to any argument. | |
| 1729 | + * | |
| 1730 | + * <table cellpadding=5 summary="DTConv"> | |
| 1731 | + * | |
| 1732 | + * <tr><td valign="top">{@code '%'} | |
| 1733 | + * <td> The result is a literal {@code '%'} (<tt>'\u0025'</tt>) | |
| 1734 | + * | |
| 1735 | + * <p> The <a name="dtWidth">width</a> is the minimum number of characters to | |
| 1736 | + * be written to the output including the {@code '%'}. If the length of the | |
| 1737 | + * converted value is less than the {@code width} then the output will be | |
| 1738 | + * padded by spaces (<tt>'\u0020'</tt>) until the total number of | |
| 1739 | + * characters equals width. The padding is on the left. If width is not | |
| 1740 | + * specified then just the {@code '%'} is output. | |
| 1741 | + * | |
| 1742 | + * <p> The {@code '-'} flag defined for <a href="#dFlags">General | |
| 1743 | + * conversions</a> applies. If any other flags are provided, then a | |
| 1744 | + * {@link FormatFlagsConversionMismatchException} will be thrown. | |
| 1745 | + * | |
| 1746 | + * <p> The precision is not applicable. If the precision is specified an | |
| 1747 | + * {@link IllegalFormatPrecisionException} will be thrown. | |
| 1748 | + * | |
| 1749 | + * </table> | |
| 1750 | + * | |
| 1751 | + * <h4><a name="dls">Line Separator</a></h4> | |
| 1752 | + * | |
| 1753 | + * <p> The conversion does not correspond to any argument. | |
| 1754 | + * | |
| 1755 | + * <table cellpadding=5 summary="DTConv"> | |
| 1756 | + * | |
| 1757 | + * <tr><td valign="top">{@code 'n'} | |
| 1758 | + * <td> the platform-specific line separator as returned by {@link | |
| 1759 | + * System#getProperty System.getProperty("line.separator")}. | |
| 1760 | + * | |
| 1761 | + * </table> | |
| 1762 | + * | |
| 1763 | + * <p> Flags, width, and precision are not applicable. If any are provided an | |
| 1764 | + * {@link IllegalFormatFlagsException}, {@link IllegalFormatWidthException}, | |
| 1765 | + * and {@link IllegalFormatPrecisionException}, respectively will be thrown. | |
| 1766 | + * | |
| 1767 | + * <h4><a name="dpos">Argument Index</a></h4> | |
| 1768 | + * | |
| 1769 | + * <p> Format specifiers can reference arguments in three ways: | |
| 1770 | + * | |
| 1771 | + * <ul> | |
| 1772 | + * | |
| 1773 | + * <li> <i>Explicit indexing</i> is used when the format specifier contains an | |
| 1774 | + * argument index. The argument index is a decimal integer indicating the | |
| 1775 | + * position of the argument in the argument list. The first argument is | |
| 1776 | + * referenced by "{@code 1$}", the second by "{@code 2$}", etc. An argument | |
| 1777 | + * may be referenced more than once. | |
| 1778 | + * | |
| 1779 | + * <p> For example: | |
| 1780 | + * | |
| 1781 | + * <blockquote><pre> | |
| 1782 | + * formatter.format("%4$s %3$s %2$s %1$s %4$s %3$s %2$s %1$s", | |
| 1783 | + * "a", "b", "c", "d") | |
| 1784 | + * // -> "d c b a d c b a" | |
| 1785 | + * </pre></blockquote> | |
| 1786 | + * | |
| 1787 | + * <li> <i>Relative indexing</i> is used when the format specifier contains a | |
| 1788 | + * {@code '<'} (<tt>'\u003c'</tt>) flag which causes the argument for | |
| 1789 | + * the previous format specifier to be re-used. If there is no previous | |
| 1790 | + * argument, then a {@link MissingFormatArgumentException} is thrown. | |
| 1791 | + * | |
| 1792 | + * <blockquote><pre> | |
| 1793 | + * formatter.format("%s %s %<s %<s", "a", "b", "c", "d") | |
| 1794 | + * // -> "a b b b" | |
| 1795 | + * // "c" and "d" are ignored because they are not referenced | |
| 1796 | + * </pre></blockquote> | |
| 1797 | + * | |
| 1798 | + * <li> <i>Ordinary indexing</i> is used when the format specifier contains | |
| 1799 | + * neither an argument index nor a {@code '<'} flag. Each format specifier | |
| 1800 | + * which uses ordinary indexing is assigned a sequential implicit index into | |
| 1801 | + * argument list which is independent of the indices used by explicit or | |
| 1802 | + * relative indexing. | |
| 1803 | + * | |
| 1804 | + * <blockquote><pre> | |
| 1805 | + * formatter.format("%s %s %s %s", "a", "b", "c", "d") | |
| 1806 | + * // -> "a b c d" | |
| 1807 | + * </pre></blockquote> | |
| 1808 | + * | |
| 1809 | + * </ul> | |
| 1810 | + * | |
| 1811 | + * <p> It is possible to have a format string which uses all forms of indexing, | |
| 1812 | + * for example: | |
| 1813 | + * | |
| 1814 | + * <blockquote><pre> | |
| 1815 | + * formatter.format("%2$s %s %<s %s", "a", "b", "c", "d") | |
| 1816 | + * // -> "b a a b" | |
| 1817 | + * // "c" and "d" are ignored because they are not referenced | |
| 1818 | + * </pre></blockquote> | |
| 1819 | + * | |
| 1820 | + * <p> The maximum number of arguments is limited by the maximum dimension of a | |
| 1821 | + * Java array as defined by | |
| 1822 | + * <cite>The Java™ Virtual Machine Specification</cite>. | |
| 1823 | + * If the argument index is does not correspond to an | |
| 1824 | + * available argument, then a {@link MissingFormatArgumentException} is thrown. | |
| 1825 | + * | |
| 1826 | + * <p> If there are more arguments than format specifiers, the extra arguments | |
| 1827 | + * are ignored. | |
| 1828 | + * | |
| 1829 | + * <p> Unless otherwise specified, passing a {@code null} argument to any | |
| 1830 | + * method or constructor in this class will cause a {@link | |
| 1831 | + * NullPointerException} to be thrown. | |
| 1832 | + * | |
| 1833 | + * @author Iris Clark | |
| 1834 | + * @since 1.5 | |
| 1835 | + */ | |
| 1836 | +public final class Formatter implements Closeable, Flushable { | |
| 1837 | + private Appendable a; | |
| 1838 | + private final Locale l; | |
| 1839 | + | |
| 1840 | + private IOException lastException; | |
| 1841 | + | |
| 1842 | + private final char zero; | |
| 1843 | + private static double scaleUp; | |
| 1844 | + | |
| 1845 | + // 1 (sign) + 19 (max # sig digits) + 1 ('.') + 1 ('e') + 1 (sign) | |
| 1846 | + // + 3 (max # exp digits) + 4 (error) = 30 | |
| 1847 | + private static final int MAX_FD_CHARS = 30; | |
| 1848 | + | |
| 1849 | + /** | |
| 1850 | + * Returns a charset object for the given charset name. | |
| 1851 | + * @throws NullPointerException is csn is null | |
| 1852 | + * @throws UnsupportedEncodingException if the charset is not supported | |
| 1853 | + */ | |
| 1854 | + private static Charset toCharset(String csn) | |
| 1855 | + throws UnsupportedEncodingException | |
| 1856 | + { | |
| 1857 | + Objects.requireNonNull(csn, "charsetName"); | |
| 1858 | + try { | |
| 1859 | + return Charset.forName(csn); | |
| 1860 | + } catch (IllegalCharsetNameException|UnsupportedCharsetException unused) { | |
| 1861 | + // UnsupportedEncodingException should be thrown | |
| 1862 | + throw new UnsupportedEncodingException(csn); | |
| 1863 | + } | |
| 1864 | + } | |
| 1865 | + | |
| 1866 | + private static final Appendable nonNullAppendable(Appendable a) { | |
| 1867 | + if (a == null) | |
| 1868 | + return new StringBuilder(); | |
| 1869 | + | |
| 1870 | + return a; | |
| 1871 | + } | |
| 1872 | + | |
| 1873 | + /* Private constructors */ | |
| 1874 | + private Formatter(Locale l, Appendable a) { | |
| 1875 | + this.a = a; | |
| 1876 | + this.l = l; | |
| 1877 | + this.zero = getZero(l); | |
| 1878 | + } | |
| 1879 | + | |
| 1880 | + private Formatter(Charset charset, Locale l, File file) | |
| 1881 | + throws FileNotFoundException | |
| 1882 | + { | |
| 1883 | + this(l, | |
| 1884 | + new BufferedWriter(new OutputStreamWriter(new FileOutputStream(file), charset))); | |
| 1885 | + } | |
| 1886 | + | |
| 1887 | + /** | |
| 1888 | + * Constructs a new formatter. | |
| 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 | |
| 1892 | + * current content may be converted into a string by invoking {@link | |
| 1893 | + * #toString toString()}. The locale used is the {@linkplain | |
| 1894 | + * Locale#getDefault() default locale} for this instance of the Java | |
| 1895 | + * virtual machine. | |
| 1896 | + */ | |
| 1897 | + public Formatter() { | |
| 1898 | + this(Locale.getDefault(Locale.Category.FORMAT), new StringBuilder()); | |
| 1899 | + } | |
| 1900 | + | |
| 1901 | + /** | |
| 1902 | + * Constructs a new formatter with the specified destination. | |
| 1903 | + * | |
| 1904 | + * <p> The locale used is the {@linkplain Locale#getDefault() default | |
| 1905 | + * locale} for this instance of the Java virtual machine. | |
| 1906 | + * | |
| 1907 | + * @param a | |
| 1908 | + * Destination for the formatted output. If {@code a} is | |
| 1909 | + * {@code null} then a {@link StringBuilder} will be created. | |
| 1910 | + */ | |
| 1911 | + public Formatter(Appendable a) { | |
| 1912 | + this(Locale.getDefault(Locale.Category.FORMAT), nonNullAppendable(a)); | |
| 1913 | + } | |
| 1914 | + | |
| 1915 | + /** | |
| 1916 | + * Constructs a new formatter with the specified locale. | |
| 1917 | + * | |
| 1918 | + * <p> The destination of the formatted output is a {@link StringBuilder} | |
| 1919 | + * which may be retrieved by invoking {@link #out out()} and whose current | |
| 1920 | + * content may be converted into a string by invoking {@link #toString | |
| 1921 | + * toString()}. | |
| 1922 | + * | |
| 1923 | + * @param l | |
| 1924 | + * The {@linkplain java.util.Locale locale} to apply during | |
| 1925 | + * formatting. If {@code l} is {@code null} then no localization | |
| 1926 | + * is applied. | |
| 1927 | + */ | |
| 1928 | + public Formatter(Locale l) { | |
| 1929 | + this(l, new StringBuilder()); | |
| 1930 | + } | |
| 1931 | + | |
| 1932 | + /** | |
| 1933 | + * Constructs a new formatter with the specified destination and locale. | |
| 1934 | + * | |
| 1935 | + * @param a | |
| 1936 | + * Destination for the formatted output. If {@code a} is | |
| 1937 | + * {@code null} then a {@link StringBuilder} will be created. | |
| 1938 | + * | |
| 1939 | + * @param l | |
| 1940 | + * The {@linkplain java.util.Locale locale} to apply during | |
| 1941 | + * formatting. If {@code l} is {@code null} then no localization | |
| 1942 | + * is applied. | |
| 1943 | + */ | |
| 1944 | + public Formatter(Appendable a, Locale l) { | |
| 1945 | + this(l, nonNullAppendable(a)); | |
| 1946 | + } | |
| 1947 | + | |
| 1948 | + /** | |
| 1949 | + * Constructs a new formatter with the specified file name. | |
| 1950 | + * | |
| 1951 | + * <p> The charset used is the {@linkplain | |
| 1952 | + * java.nio.charset.Charset#defaultCharset() default charset} for this | |
| 1953 | + * instance of the Java virtual machine. | |
| 1954 | + * | |
| 1955 | + * <p> The locale used is the {@linkplain Locale#getDefault() default | |
| 1956 | + * locale} for this instance of the Java virtual machine. | |
| 1957 | + * | |
| 1958 | + * @param fileName | |
| 1959 | + * The name of the file to use as the destination of this | |
| 1960 | + * formatter. If the file exists then it will be truncated to | |
| 1961 | + * zero size; otherwise, a new file will be created. The output | |
| 1962 | + * will be written to the file and is buffered. | |
| 1963 | + * | |
| 1964 | + * @throws SecurityException | |
| 1965 | + * If a security manager is present and {@link | |
| 1966 | + * SecurityManager#checkWrite checkWrite(fileName)} denies write | |
| 1967 | + * access to the file | |
| 1968 | + * | |
| 1969 | + * @throws FileNotFoundException | |
| 1970 | + * If the given file name does not denote an existing, writable | |
| 1971 | + * regular file and a new regular file of that name cannot be | |
| 1972 | + * created, or if some other error occurs while opening or | |
| 1973 | + * creating the file | |
| 1974 | + */ | |
| 1975 | + public Formatter(String fileName) throws FileNotFoundException { | |
| 1976 | + this(Locale.getDefault(Locale.Category.FORMAT), | |
| 1977 | + new BufferedWriter(new OutputStreamWriter(new FileOutputStream(fileName)))); | |
| 1978 | + } | |
| 1979 | + | |
| 1980 | + /** | |
| 1981 | + * Constructs a new formatter with the specified file name and charset. | |
| 1982 | + * | |
| 1983 | + * <p> The locale used is the {@linkplain Locale#getDefault default | |
| 1984 | + * locale} for this instance of the Java virtual machine. | |
| 1985 | + * | |
| 1986 | + * @param fileName | |
| 1987 | + * The name of the file to use as the destination of this | |
| 1988 | + * formatter. If the file exists then it will be truncated to | |
| 1989 | + * zero size; otherwise, a new file will be created. The output | |
| 1990 | + * will be written to the file and is buffered. | |
| 1991 | + * | |
| 1992 | + * @param csn | |
| 1993 | + * The name of a supported {@linkplain java.nio.charset.Charset | |
| 1994 | + * charset} | |
| 1995 | + * | |
| 1996 | + * @throws FileNotFoundException | |
| 1997 | + * If the given file name does not denote an existing, writable | |
| 1998 | + * regular file and a new regular file of that name cannot be | |
| 1999 | + * created, or if some other error occurs while opening or | |
| 2000 | + * creating the file | |
| 2001 | + * | |
| 2002 | + * @throws SecurityException | |
| 2003 | + * If a security manager is present and {@link | |
| 2004 | + * SecurityManager#checkWrite checkWrite(fileName)} denies write | |
| 2005 | + * access to the file | |
| 2006 | + * | |
| 2007 | + * @throws UnsupportedEncodingException | |
| 2008 | + * If the named charset is not supported | |
| 2009 | + */ | |
| 2010 | + public Formatter(String fileName, String csn) | |
| 2011 | + throws FileNotFoundException, UnsupportedEncodingException | |
| 2012 | + { | |
| 2013 | + this(fileName, csn, Locale.getDefault(Locale.Category.FORMAT)); | |
| 2014 | + } | |
| 2015 | + | |
| 2016 | + /** | |
| 2017 | + * Constructs a new formatter with the specified file name, charset, and | |
| 2018 | + * locale. | |
| 2019 | + * | |
| 2020 | + * @param fileName | |
| 2021 | + * The name of the file to use as the destination of this | |
| 2022 | + * formatter. If the file exists then it will be truncated to | |
| 2023 | + * zero size; otherwise, a new file will be created. The output | |
| 2024 | + * will be written to the file and is buffered. | |
| 2025 | + * | |
| 2026 | + * @param csn | |
| 2027 | + * The name of a supported {@linkplain java.nio.charset.Charset | |
| 2028 | + * charset} | |
| 2029 | + * | |
| 2030 | + * @param l | |
| 2031 | + * The {@linkplain java.util.Locale locale} to apply during | |
| 2032 | + * formatting. If {@code l} is {@code null} then no localization | |
| 2033 | + * is applied. | |
| 2034 | + * | |
| 2035 | + * @throws FileNotFoundException | |
| 2036 | + * If the given file name does not denote an existing, writable | |
| 2037 | + * regular file and a new regular file of that name cannot be | |
| 2038 | + * created, or if some other error occurs while opening or | |
| 2039 | + * creating the file | |
| 2040 | + * | |
| 2041 | + * @throws SecurityException | |
| 2042 | + * If a security manager is present and {@link | |
| 2043 | + * SecurityManager#checkWrite checkWrite(fileName)} denies write | |
| 2044 | + * access to the file | |
| 2045 | + * | |
| 2046 | + * @throws UnsupportedEncodingException | |
| 2047 | + * If the named charset is not supported | |
| 2048 | + */ | |
| 2049 | + public Formatter(String fileName, String csn, Locale l) | |
| 2050 | + throws FileNotFoundException, UnsupportedEncodingException | |
| 2051 | + { | |
| 2052 | + this(toCharset(csn), l, new File(fileName)); | |
| 2053 | + } | |
| 2054 | + | |
| 2055 | + /** | |
| 2056 | + * Constructs a new formatter with the specified file. | |
| 2057 | + * | |
| 2058 | + * <p> The charset used is the {@linkplain | |
| 2059 | + * java.nio.charset.Charset#defaultCharset() default charset} for this | |
| 2060 | + * instance of the Java virtual machine. | |
| 2061 | + * | |
| 2062 | + * <p> The locale used is the {@linkplain Locale#getDefault() default | |
| 2063 | + * locale} for this instance of the Java virtual machine. | |
| 2064 | + * | |
| 2065 | + * @param file | |
| 2066 | + * The file to use as the destination of this formatter. If the | |
| 2067 | + * file exists then it will be truncated to zero size; otherwise, | |
| 2068 | + * a new file will be created. The output will be written to the | |
| 2069 | + * file and is buffered. | |
| 2070 | + * | |
| 2071 | + * @throws SecurityException | |
| 2072 | + * If a security manager is present and {@link | |
| 2073 | + * SecurityManager#checkWrite checkWrite(file.getPath())} denies | |
| 2074 | + * write access to the file | |
| 2075 | + * | |
| 2076 | + * @throws FileNotFoundException | |
| 2077 | + * If the given file object does not denote an existing, writable | |
| 2078 | + * regular file and a new regular file of that name cannot be | |
| 2079 | + * created, or if some other error occurs while opening or | |
| 2080 | + * creating the file | |
| 2081 | + */ | |
| 2082 | + public Formatter(File file) throws FileNotFoundException { | |
| 2083 | + this(Locale.getDefault(Locale.Category.FORMAT), | |
| 2084 | + new BufferedWriter(new OutputStreamWriter(new FileOutputStream(file)))); | |
| 2085 | + } | |
| 2086 | + | |
| 2087 | + /** | |
| 2088 | + * Constructs a new formatter with the specified file and charset. | |
| 2089 | + * | |
| 2090 | + * <p> The locale used is the {@linkplain Locale#getDefault default | |
| 2091 | + * locale} for this instance of the Java virtual machine. | |
| 2092 | + * | |
| 2093 | + * @param file | |
| 2094 | + * The file to use as the destination of this formatter. If the | |
| 2095 | + * file exists then it will be truncated to zero size; otherwise, | |
| 2096 | + * a new file will be created. The output will be written to the | |
| 2097 | + * file and is buffered. | |
| 2098 | + * | |
| 2099 | + * @param csn | |
| 2100 | + * The name of a supported {@linkplain java.nio.charset.Charset | |
| 2101 | + * charset} | |
| 2102 | + * | |
| 2103 | + * @throws FileNotFoundException | |
| 2104 | + * If the given file object does not denote an existing, writable | |
| 2105 | + * regular file and a new regular file of that name cannot be | |
| 2106 | + * created, or if some other error occurs while opening or | |
| 2107 | + * creating the file | |
| 2108 | + * | |
| 2109 | + * @throws SecurityException | |
| 2110 | + * If a security manager is present and {@link | |
| 2111 | + * SecurityManager#checkWrite checkWrite(file.getPath())} denies | |
| 2112 | + * write access to the file | |
| 2113 | + * | |
| 2114 | + * @throws UnsupportedEncodingException | |
| 2115 | + * If the named charset is not supported | |
| 2116 | + */ | |
| 2117 | + public Formatter(File file, String csn) | |
| 2118 | + throws FileNotFoundException, UnsupportedEncodingException | |
| 2119 | + { | |
| 2120 | + this(file, csn, Locale.getDefault(Locale.Category.FORMAT)); | |
| 2121 | + } | |
| 2122 | + | |
| 2123 | + /** | |
| 2124 | + * Constructs a new formatter with the specified file, charset, and | |
| 2125 | + * locale. | |
| 2126 | + * | |
| 2127 | + * @param file | |
| 2128 | + * The file to use as the destination of this formatter. If the | |
| 2129 | + * file exists then it will be truncated to zero size; otherwise, | |
| 2130 | + * a new file will be created. The output will be written to the | |
| 2131 | + * file and is buffered. | |
| 2132 | + * | |
| 2133 | + * @param csn | |
| 2134 | + * The name of a supported {@linkplain java.nio.charset.Charset | |
| 2135 | + * charset} | |
| 2136 | + * | |
| 2137 | + * @param l | |
| 2138 | + * The {@linkplain java.util.Locale locale} to apply during | |
| 2139 | + * formatting. If {@code l} is {@code null} then no localization | |
| 2140 | + * is applied. | |
| 2141 | + * | |
| 2142 | + * @throws FileNotFoundException | |
| 2143 | + * If the given file object does not denote an existing, writable | |
| 2144 | + * regular file and a new regular file of that name cannot be | |
| 2145 | + * created, or if some other error occurs while opening or | |
| 2146 | + * creating the file | |
| 2147 | + * | |
| 2148 | + * @throws SecurityException | |
| 2149 | + * If a security manager is present and {@link | |
| 2150 | + * SecurityManager#checkWrite checkWrite(file.getPath())} denies | |
| 2151 | + * write access to the file | |
| 2152 | + * | |
| 2153 | + * @throws UnsupportedEncodingException | |
| 2154 | + * If the named charset is not supported | |
| 2155 | + */ | |
| 2156 | + public Formatter(File file, String csn, Locale l) | |
| 2157 | + throws FileNotFoundException, UnsupportedEncodingException | |
| 2158 | + { | |
| 2159 | + this(toCharset(csn), l, file); | |
| 2160 | + } | |
| 2161 | + | |
| 2162 | + /** | |
| 2163 | + * Constructs a new formatter with the specified print stream. | |
| 2164 | + * | |
| 2165 | + * <p> The locale used is the {@linkplain Locale#getDefault() default | |
| 2166 | + * locale} for this instance of the Java virtual machine. | |
| 2167 | + * | |
| 2168 | + * <p> Characters are written to the given {@link java.io.PrintStream | |
| 2169 | + * PrintStream} object and are therefore encoded using that object's | |
| 2170 | + * charset. | |
| 2171 | + * | |
| 2172 | + * @param ps | |
| 2173 | + * The stream to use as the destination of this formatter. | |
| 2174 | + */ | |
| 2175 | + public Formatter(PrintStream ps) { | |
| 2176 | + this(Locale.getDefault(Locale.Category.FORMAT), | |
| 2177 | + (Appendable)Objects.requireNonNull(ps)); | |
| 2178 | + } | |
| 2179 | + | |
| 2180 | + /** | |
| 2181 | + * Constructs a new formatter with the specified output stream. | |
| 2182 | + * | |
| 2183 | + * <p> The charset used is the {@linkplain | |
| 2184 | + * java.nio.charset.Charset#defaultCharset() default charset} for this | |
| 2185 | + * instance of the Java virtual machine. | |
| 2186 | + * | |
| 2187 | + * <p> The locale used is the {@linkplain Locale#getDefault() default | |
| 2188 | + * locale} for this instance of the Java virtual machine. | |
| 2189 | + * | |
| 2190 | + * @param os | |
| 2191 | + * The output stream to use as the destination of this formatter. | |
| 2192 | + * The output will be buffered. | |
| 2193 | + */ | |
| 2194 | + public Formatter(OutputStream os) { | |
| 2195 | + this(Locale.getDefault(Locale.Category.FORMAT), | |
| 2196 | + new BufferedWriter(new OutputStreamWriter(os))); | |
| 2197 | + } | |
| 2198 | + | |
| 2199 | + /** | |
| 2200 | + * Constructs a new formatter with the specified output stream and | |
| 2201 | + * charset. | |
| 2202 | + * | |
| 2203 | + * <p> The locale used is the {@linkplain Locale#getDefault default | |
| 2204 | + * locale} for this instance of the Java virtual machine. | |
| 2205 | + * | |
| 2206 | + * @param os | |
| 2207 | + * The output stream to use as the destination of this formatter. | |
| 2208 | + * The output will be buffered. | |
| 2209 | + * | |
| 2210 | + * @param csn | |
| 2211 | + * The name of a supported {@linkplain java.nio.charset.Charset | |
| 2212 | + * charset} | |
| 2213 | + * | |
| 2214 | + * @throws UnsupportedEncodingException | |
| 2215 | + * If the named charset is not supported | |
| 2216 | + */ | |
| 2217 | + public Formatter(OutputStream os, String csn) | |
| 2218 | + throws UnsupportedEncodingException | |
| 2219 | + { | |
| 2220 | + this(os, csn, Locale.getDefault(Locale.Category.FORMAT)); | |
| 2221 | + } | |
| 2222 | + | |
| 2223 | + /** | |
| 2224 | + * Constructs a new formatter with the specified output stream, charset, | |
| 2225 | + * and locale. | |
| 2226 | + * | |
| 2227 | + * @param os | |
| 2228 | + * The output stream to use as the destination of this formatter. | |
| 2229 | + * The output will be buffered. | |
| 2230 | + * | |
| 2231 | + * @param csn | |
| 2232 | + * The name of a supported {@linkplain java.nio.charset.Charset | |
| 2233 | + * charset} | |
| 2234 | + * | |
| 2235 | + * @param l | |
| 2236 | + * The {@linkplain java.util.Locale locale} to apply during | |
| 2237 | + * formatting. If {@code l} is {@code null} then no localization | |
| 2238 | + * is applied. | |
| 2239 | + * | |
| 2240 | + * @throws UnsupportedEncodingException | |
| 2241 | + * If the named charset is not supported | |
| 2242 | + */ | |
| 2243 | + public Formatter(OutputStream os, String csn, Locale l) | |
| 2244 | + throws UnsupportedEncodingException | |
| 2245 | + { | |
| 2246 | + this(l, new BufferedWriter(new OutputStreamWriter(os, csn))); | |
| 2247 | + } | |
| 2248 | + | |
| 2249 | + private static char getZero(Locale l) { | |
| 2250 | + if ((l != null) && !l.equals(Locale.US)) { | |
| 2251 | + DecimalFormatSymbols dfs = DecimalFormatSymbols.getInstance(l); | |
| 2252 | + return dfs.getZeroDigit(); | |
| 2253 | + } else { | |
| 2254 | + return '0'; | |
| 2255 | + } | |
| 2256 | + } | |
| 2257 | + | |
| 2258 | + /** | |
| 2259 | + * Returns the locale set by the construction of this formatter. | |
| 2260 | + * | |
| 2261 | + * <p> The {@link #format(java.util.Locale,String,Object...) format} method | |
| 2262 | + * for this object which has a locale argument does not change this value. | |
| 2263 | + * | |
| 2264 | + * @return {@code null} if no localization is applied, otherwise a | |
| 2265 | + * locale | |
| 2266 | + * | |
| 2267 | + * @throws FormatterClosedException | |
| 2268 | + * If this formatter has been closed by invoking its {@link | |
| 2269 | + * #close()} method | |
| 2270 | + */ | |
| 2271 | + public Locale locale() { | |
| 2272 | + ensureOpen(); | |
| 2273 | + return l; | |
| 2274 | + } | |
| 2275 | + | |
| 2276 | + /** | |
| 2277 | + * Returns the destination for the output. | |
| 2278 | + * | |
| 2279 | + * @return The destination for the output | |
| 2280 | + * | |
| 2281 | + * @throws FormatterClosedException | |
| 2282 | + * If this formatter has been closed by invoking its {@link | |
| 2283 | + * #close()} method | |
| 2284 | + */ | |
| 2285 | + public Appendable out() { | |
| 2286 | + ensureOpen(); | |
| 2287 | + return a; | |
| 2288 | + } | |
| 2289 | + | |
| 2290 | + /** | |
| 2291 | + * Returns the result of invoking {@code toString()} on the destination | |
| 2292 | + * for the output. For example, the following code formats text into a | |
| 2293 | + * {@link StringBuilder} then retrieves the resultant string: | |
| 2294 | + * | |
| 2295 | + * <blockquote><pre> | |
| 2296 | + * Formatter f = new Formatter(); | |
| 2297 | + * f.format("Last reboot at %tc", lastRebootDate); | |
| 2298 | + * String s = f.toString(); | |
| 2299 | + * // -> s == "Last reboot at Sat Jan 01 00:00:00 PST 2000" | |
| 2300 | + * </pre></blockquote> | |
| 2301 | + * | |
| 2302 | + * <p> An invocation of this method behaves in exactly the same way as the | |
| 2303 | + * invocation | |
| 2304 | + * | |
| 2305 | + * <pre> | |
| 2306 | + * out().toString() </pre> | |
| 2307 | + * | |
| 2308 | + * <p> Depending on the specification of {@code toString} for the {@link | |
| 2309 | + * Appendable}, the returned string may or may not contain the characters | |
| 2310 | + * written to the destination. For instance, buffers typically return | |
| 2311 | + * their contents in {@code toString()}, but streams cannot since the | |
| 2312 | + * data is discarded. | |
| 2313 | + * | |
| 2314 | + * @return The result of invoking {@code toString()} on the destination | |
| 2315 | + * for the output | |
| 2316 | + * | |
| 2317 | + * @throws FormatterClosedException | |
| 2318 | + * If this formatter has been closed by invoking its {@link | |
| 2319 | + * #close()} method | |
| 2320 | + */ | |
| 2321 | + public String toString() { | |
| 2322 | + ensureOpen(); | |
| 2323 | + return a.toString(); | |
| 2324 | + } | |
| 2325 | + | |
| 2326 | + /** | |
| 2327 | + * Flushes this formatter. If the destination implements the {@link | |
| 2328 | + * java.io.Flushable} interface, its {@code flush} method will be invoked. | |
| 2329 | + * | |
| 2330 | + * <p> Flushing a formatter writes any buffered output in the destination | |
| 2331 | + * to the underlying stream. | |
| 2332 | + * | |
| 2333 | + * @throws FormatterClosedException | |
| 2334 | + * If this formatter has been closed by invoking its {@link | |
| 2335 | + * #close()} method | |
| 2336 | + */ | |
| 2337 | + public void flush() { | |
| 2338 | + ensureOpen(); | |
| 2339 | + if (a instanceof Flushable) { | |
| 2340 | + try { | |
| 2341 | + ((Flushable)a).flush(); | |
| 2342 | + } catch (IOException ioe) { | |
| 2343 | + lastException = ioe; | |
| 2344 | + } | |
| 2345 | + } | |
| 2346 | + } | |
| 2347 | + | |
| 2348 | + /** | |
| 2349 | + * Closes this formatter. If the destination implements the {@link | |
| 2350 | + * java.io.Closeable} interface, its {@code close} method will be invoked. | |
| 2351 | + * | |
| 2352 | + * <p> Closing a formatter allows it to release resources it may be holding | |
| 2353 | + * (such as open files). If the formatter is already closed, then invoking | |
| 2354 | + * this method has no effect. | |
| 2355 | + * | |
| 2356 | + * <p> Attempting to invoke any methods except {@link #ioException()} in | |
| 2357 | + * this formatter after it has been closed will result in a {@link | |
| 2358 | + * FormatterClosedException}. | |
| 2359 | + */ | |
| 2360 | + public void close() { | |
| 2361 | + if (a == null) | |
| 2362 | + return; | |
| 2363 | + try { | |
| 2364 | + if (a instanceof Closeable) | |
| 2365 | + ((Closeable)a).close(); | |
| 2366 | + } catch (IOException ioe) { | |
| 2367 | + lastException = ioe; | |
| 2368 | + } finally { | |
| 2369 | + a = null; | |
| 2370 | + } | |
| 2371 | + } | |
| 2372 | + | |
| 2373 | + private void ensureOpen() { | |
| 2374 | + if (a == null) | |
| 2375 | + throw new FormatterClosedException(); | |
| 2376 | + } | |
| 2377 | + | |
| 2378 | + /** | |
| 2379 | + * Returns the {@code IOException} last thrown by this formatter's {@link | |
| 2380 | + * Appendable}. | |
| 2381 | + * | |
| 2382 | + * <p> If the destination's {@code append()} method never throws | |
| 2383 | + * {@code IOException}, then this method will always return {@code null}. | |
| 2384 | + * | |
| 2385 | + * @return The last exception thrown by the Appendable or {@code null} if | |
| 2386 | + * no such exception exists. | |
| 2387 | + */ | |
| 2388 | + public IOException ioException() { | |
| 2389 | + return lastException; | |
| 2390 | + } | |
| 2391 | + | |
| 2392 | + /** | |
| 2393 | + * Writes a formatted string to this object's destination using the | |
| 2394 | + * specified format string and arguments. The locale used is the one | |
| 2395 | + * defined during the construction of this formatter. | |
| 2396 | + * | |
| 2397 | + * @param format | |
| 2398 | + * A format string as described in <a href="#syntax">Format string | |
| 2399 | + * syntax</a>. | |
| 2400 | + * | |
| 2401 | + * @param args | |
| 2402 | + * Arguments referenced by the format specifiers in the format | |
| 2403 | + * string. If there are more arguments than format specifiers, the | |
| 2404 | + * extra arguments are ignored. The maximum number of arguments is | |
| 2405 | + * limited by the maximum dimension of a Java array as defined by | |
| 2406 | + * <cite>The Java™ Virtual Machine Specification</cite>. | |
| 2407 | + * | |
| 2408 | + * @throws IllegalFormatException | |
| 2409 | + * If a format string contains an illegal syntax, a format | |
| 2410 | + * specifier that is incompatible with the given arguments, | |
| 2411 | + * insufficient arguments given the format string, or other | |
| 2412 | + * illegal conditions. For specification of all possible | |
| 2413 | + * formatting errors, see the <a href="#detail">Details</a> | |
| 2414 | + * section of the formatter class specification. | |
| 2415 | + * | |
| 2416 | + * @throws FormatterClosedException | |
| 2417 | + * If this formatter has been closed by invoking its {@link | |
| 2418 | + * #close()} method | |
| 2419 | + * | |
| 2420 | + * @return This formatter | |
| 2421 | + */ | |
| 2422 | + public Formatter format(String format, Object ... args) { | |
| 2423 | + return format(l, format, args); | |
| 2424 | + } | |
| 2425 | + | |
| 2426 | + /** | |
| 2427 | + * Writes a formatted string to this object's destination using the | |
| 2428 | + * specified locale, format string, and arguments. | |
| 2429 | + * | |
| 2430 | + * @param l | |
| 2431 | + * The {@linkplain java.util.Locale locale} to apply during | |
| 2432 | + * formatting. If {@code l} is {@code null} then no localization | |
| 2433 | + * is applied. This does not change this object's locale that was | |
| 2434 | + * set during construction. | |
| 2435 | + * | |
| 2436 | + * @param format | |
| 2437 | + * A format string as described in <a href="#syntax">Format string | |
| 2438 | + * syntax</a> | |
| 2439 | + * | |
| 2440 | + * @param args | |
| 2441 | + * Arguments referenced by the format specifiers in the format | |
| 2442 | + * string. If there are more arguments than format specifiers, the | |
| 2443 | + * extra arguments are ignored. The maximum number of arguments is | |
| 2444 | + * limited by the maximum dimension of a Java array as defined by | |
| 2445 | + * <cite>The Java™ Virtual Machine Specification</cite>. | |
| 2446 | + * | |
| 2447 | + * @throws IllegalFormatException | |
| 2448 | + * If a format string contains an illegal syntax, a format | |
| 2449 | + * specifier that is incompatible with the given arguments, | |
| 2450 | + * insufficient arguments given the format string, or other | |
| 2451 | + * illegal conditions. For specification of all possible | |
| 2452 | + * formatting errors, see the <a href="#detail">Details</a> | |
| 2453 | + * section of the formatter class specification. | |
| 2454 | + * | |
| 2455 | + * @throws FormatterClosedException | |
| 2456 | + * If this formatter has been closed by invoking its {@link | |
| 2457 | + * #close()} method | |
| 2458 | + * | |
| 2459 | + * @return This formatter | |
| 2460 | + */ | |
| 2461 | + public Formatter format(Locale l, String format, Object ... args) { | |
| 2462 | + ensureOpen(); | |
| 2463 | + | |
| 2464 | + // index of last argument referenced | |
| 2465 | + int last = -1; | |
| 2466 | + // last ordinary index | |
| 2467 | + int lasto = -1; | |
| 2468 | + | |
| 2469 | + FormatString[] fsa = parse(format); | |
| 2470 | + for (int i = 0; i < fsa.length; i++) { | |
| 2471 | + FormatString fs = fsa[i]; | |
| 2472 | + int index = fs.index(); | |
| 2473 | + try { | |
| 2474 | + switch (index) { | |
| 2475 | + case -2: // fixed string, "%n", or "%%" | |
| 2476 | + fs.print(null, l); | |
| 2477 | + break; | |
| 2478 | + case -1: // relative index | |
| 2479 | + if (last < 0 || (args != null && last > args.length - 1)) | |
| 2480 | + throw new MissingFormatArgumentException(fs.toString()); | |
| 2481 | + fs.print((args == null ? null : args[last]), l); | |
| 2482 | + break; | |
| 2483 | + case 0: // ordinary index | |
| 2484 | + lasto++; | |
| 2485 | + last = lasto; | |
| 2486 | + if (args != null && lasto > args.length - 1) | |
| 2487 | + throw new MissingFormatArgumentException(fs.toString()); | |
| 2488 | + fs.print((args == null ? null : args[lasto]), l); | |
| 2489 | + break; | |
| 2490 | + default: // explicit index | |
| 2491 | + last = index - 1; | |
| 2492 | + if (args != null && last > args.length - 1) | |
| 2493 | + throw new MissingFormatArgumentException(fs.toString()); | |
| 2494 | + fs.print((args == null ? null : args[last]), l); | |
| 2495 | + break; | |
| 2496 | + } | |
| 2497 | + } catch (IOException x) { | |
| 2498 | + lastException = x; | |
| 2499 | + } | |
| 2500 | + } | |
| 2501 | + return this; | |
| 2502 | + } | |
| 2503 | + | |
| 2504 | + // %[argument_index$][flags][width][.precision][t]conversion | |
| 2505 | + private static final String formatSpecifier | |
| 2506 | + = "%(\\d+\\$)?([-#+ 0,(\\<]*)?(\\d+)?(\\.\\d+)?([tT])?([a-zA-Z%])"; | |
| 2507 | + | |
| 2508 | + private static Pattern fsPattern = Pattern.compile(formatSpecifier); | |
| 2509 | + | |
| 2510 | + /** | |
| 2511 | + * Finds format specifiers in the format string. | |
| 2512 | + */ | |
| 2513 | + private FormatString[] parse(String s) { | |
| 2514 | + ArrayList<FormatString> al = new ArrayList<>(); | |
| 2515 | + Matcher m = fsPattern.matcher(s); | |
| 2516 | + for (int i = 0, len = s.length(); i < len; ) { | |
| 2517 | + if (m.find(i)) { | |
| 2518 | + // Anything between the start of the string and the beginning | |
| 2519 | + // of the format specifier is either fixed text or contains | |
| 2520 | + // an invalid format string. | |
| 2521 | + if (m.start() != i) { | |
| 2522 | + // Make sure we didn't miss any invalid format specifiers | |
| 2523 | + checkText(s, i, m.start()); | |
| 2524 | + // Assume previous characters were fixed text | |
| 2525 | + al.add(new FixedString(s.substring(i, m.start()))); | |
| 2526 | + } | |
| 2527 | + | |
| 2528 | + al.add(new FormatSpecifier(m)); | |
| 2529 | + i = m.end(); | |
| 2530 | + } else { | |
| 2531 | + // No more valid format specifiers. Check for possible invalid | |
| 2532 | + // format specifiers. | |
| 2533 | + checkText(s, i, len); | |
| 2534 | + // The rest of the string is fixed text | |
| 2535 | + al.add(new FixedString(s.substring(i))); | |
| 2536 | + break; | |
| 2537 | + } | |
| 2538 | + } | |
| 2539 | + return al.toArray(new FormatString[al.size()]); | |
| 2540 | + } | |
| 2541 | + | |
| 2542 | + private static void checkText(String s, int start, int end) { | |
| 2543 | + for (int i = start; i < end; i++) { | |
| 2544 | + // Any '%' found in the region starts an invalid format specifier. | |
| 2545 | + if (s.charAt(i) == '%') { | |
| 2546 | + char c = (i == end - 1) ? '%' : s.charAt(i + 1); | |
| 2547 | + throw new UnknownFormatConversionException(String.valueOf(c)); | |
| 2548 | + } | |
| 2549 | + } | |
| 2550 | + } | |
| 2551 | + | |
| 2552 | + private interface FormatString { | |
| 2553 | + int index(); | |
| 2554 | + void print(Object arg, Locale l) throws IOException; | |
| 2555 | + String toString(); | |
| 2556 | + } | |
| 2557 | + | |
| 2558 | + private class FixedString implements FormatString { | |
| 2559 | + private String s; | |
| 2560 | + FixedString(String s) { this.s = s; } | |
| 2561 | + public int index() { return -2; } | |
| 2562 | + public void print(Object arg, Locale l) | |
| 2563 | + throws IOException { a.append(s); } | |
| 2564 | + public String toString() { return s; } | |
| 2565 | + } | |
| 2566 | + | |
| 2567 | + public enum BigDecimalLayoutForm { SCIENTIFIC, DECIMAL_FLOAT }; | |
| 2568 | + | |
| 2569 | + private class FormatSpecifier implements FormatString { | |
| 2570 | + private int index = -1; | |
| 2571 | + private Flags f = Flags.NONE; | |
| 2572 | + private int width; | |
| 2573 | + private int precision; | |
| 2574 | + private boolean dt = false; | |
| 2575 | + private char c; | |
| 2576 | + | |
| 2577 | + private int index(String s) { | |
| 2578 | + if (s != null) { | |
| 2579 | + try { | |
| 2580 | + index = Integer.parseInt(s.substring(0, s.length() - 1)); | |
| 2581 | + } catch (NumberFormatException x) { | |
| 2582 | + assert(false); | |
| 2583 | + } | |
| 2584 | + } else { | |
| 2585 | + index = 0; | |
| 2586 | + } | |
| 2587 | + return index; | |
| 2588 | + } | |
| 2589 | + | |
| 2590 | + public int index() { | |
| 2591 | + return index; | |
| 2592 | + } | |
| 2593 | + | |
| 2594 | + private Flags flags(String s) { | |
| 2595 | + f = Flags.parse(s); | |
| 2596 | + if (f.contains(Flags.PREVIOUS)) | |
| 2597 | + index = -1; | |
| 2598 | + return f; | |
| 2599 | + } | |
| 2600 | + | |
| 2601 | + Flags flags() { | |
| 2602 | + return f; | |
| 2603 | + } | |
| 2604 | + | |
| 2605 | + private int width(String s) { | |
| 2606 | + width = -1; | |
| 2607 | + if (s != null) { | |
| 2608 | + try { | |
| 2609 | + width = Integer.parseInt(s); | |
| 2610 | + if (width < 0) | |
| 2611 | + throw new IllegalFormatWidthException(width); | |
| 2612 | + } catch (NumberFormatException x) { | |
| 2613 | + assert(false); | |
| 2614 | + } | |
| 2615 | + } | |
| 2616 | + return width; | |
| 2617 | + } | |
| 2618 | + | |
| 2619 | + int width() { | |
| 2620 | + return width; | |
| 2621 | + } | |
| 2622 | + | |
| 2623 | + private int precision(String s) { | |
| 2624 | + precision = -1; | |
| 2625 | + if (s != null) { | |
| 2626 | + try { | |
| 2627 | + // remove the '.' | |
| 2628 | + precision = Integer.parseInt(s.substring(1)); | |
| 2629 | + if (precision < 0) | |
| 2630 | + throw new IllegalFormatPrecisionException(precision); | |
| 2631 | + } catch (NumberFormatException x) { | |
| 2632 | + assert(false); | |
| 2633 | + } | |
| 2634 | + } | |
| 2635 | + return precision; | |
| 2636 | + } | |
| 2637 | + | |
| 2638 | + int precision() { | |
| 2639 | + return precision; | |
| 2640 | + } | |
| 2641 | + | |
| 2642 | + private char conversion(String s) { | |
| 2643 | + c = s.charAt(0); | |
| 2644 | + if (!dt) { | |
| 2645 | + if (!Conversion.isValid(c)) | |
| 2646 | + throw new UnknownFormatConversionException(String.valueOf(c)); | |
| 2647 | + if (Character.isUpperCase(c)) | |
| 2648 | + f.add(Flags.UPPERCASE); | |
| 2649 | + c = Character.toLowerCase(c); | |
| 2650 | + if (Conversion.isText(c)) | |
| 2651 | + index = -2; | |
| 2652 | + } | |
| 2653 | + return c; | |
| 2654 | + } | |
| 2655 | + | |
| 2656 | + private char conversion() { | |
| 2657 | + return c; | |
| 2658 | + } | |
| 2659 | + | |
| 2660 | + FormatSpecifier(Matcher m) { | |
| 2661 | + int idx = 1; | |
| 2662 | + | |
| 2663 | + index(m.group(idx++)); | |
| 2664 | + flags(m.group(idx++)); | |
| 2665 | + width(m.group(idx++)); | |
| 2666 | + precision(m.group(idx++)); | |
| 2667 | + | |
| 2668 | + String tT = m.group(idx++); | |
| 2669 | + if (tT != null) { | |
| 2670 | + dt = true; | |
| 2671 | + if (tT.equals("T")) | |
| 2672 | + f.add(Flags.UPPERCASE); | |
| 2673 | + } | |
| 2674 | + | |
| 2675 | + conversion(m.group(idx)); | |
| 2676 | + | |
| 2677 | + if (dt) | |
| 2678 | + checkDateTime(); | |
| 2679 | + else if (Conversion.isGeneral(c)) | |
| 2680 | + checkGeneral(); | |
| 2681 | + else if (Conversion.isCharacter(c)) | |
| 2682 | + checkCharacter(); | |
| 2683 | + else if (Conversion.isInteger(c)) | |
| 2684 | + checkInteger(); | |
| 2685 | + else if (Conversion.isFloat(c)) | |
| 2686 | + checkFloat(); | |
| 2687 | + else if (Conversion.isText(c)) | |
| 2688 | + checkText(); | |
| 2689 | + else | |
| 2690 | + throw new UnknownFormatConversionException(String.valueOf(c)); | |
| 2691 | + } | |
| 2692 | + | |
| 2693 | + public void print(Object arg, Locale l) throws IOException { | |
| 2694 | + if (dt) { | |
| 2695 | + printDateTime(arg, l); | |
| 2696 | + return; | |
| 2697 | + } | |
| 2698 | + switch(c) { | |
| 2699 | + case Conversion.DECIMAL_INTEGER: | |
| 2700 | + case Conversion.OCTAL_INTEGER: | |
| 2701 | + case Conversion.HEXADECIMAL_INTEGER: | |
| 2702 | + printInteger(arg, l); | |
| 2703 | + break; | |
| 2704 | + case Conversion.SCIENTIFIC: | |
| 2705 | + case Conversion.GENERAL: | |
| 2706 | + case Conversion.DECIMAL_FLOAT: | |
| 2707 | + case Conversion.HEXADECIMAL_FLOAT: | |
| 2708 | + printFloat(arg, l); | |
| 2709 | + break; | |
| 2710 | + case Conversion.CHARACTER: | |
| 2711 | + case Conversion.CHARACTER_UPPER: | |
| 2712 | + printCharacter(arg); | |
| 2713 | + break; | |
| 2714 | + case Conversion.BOOLEAN: | |
| 2715 | + printBoolean(arg); | |
| 2716 | + break; | |
| 2717 | + case Conversion.STRING: | |
| 2718 | + printString(arg, l); | |
| 2719 | + break; | |
| 2720 | + case Conversion.HASHCODE: | |
| 2721 | + printHashCode(arg); | |
| 2722 | + break; | |
| 2723 | + case Conversion.LINE_SEPARATOR: | |
| 2724 | + a.append(System.lineSeparator()); | |
| 2725 | + break; | |
| 2726 | + case Conversion.PERCENT_SIGN: | |
| 2727 | + a.append('%'); | |
| 2728 | + break; | |
| 2729 | + default: | |
| 2730 | + assert false; | |
| 2731 | + } | |
| 2732 | + } | |
| 2733 | + | |
| 2734 | + private void printInteger(Object arg, Locale l) throws IOException { | |
| 2735 | + if (arg == null) | |
| 2736 | + print("null"); | |
| 2737 | + else if (arg instanceof Byte) | |
| 2738 | + print(((Byte)arg).byteValue(), l); | |
| 2739 | + else if (arg instanceof Short) | |
| 2740 | + print(((Short)arg).shortValue(), l); | |
| 2741 | + else if (arg instanceof Integer) | |
| 2742 | + print(((Integer)arg).intValue(), l); | |
| 2743 | + else if (arg instanceof Long) | |
| 2744 | + print(((Long)arg).longValue(), l); | |
| 2745 | + else if (arg instanceof BigInteger) | |
| 2746 | + print(((BigInteger)arg), l); | |
| 2747 | + else | |
| 2748 | + failConversion(c, arg); | |
| 2749 | + } | |
| 2750 | + | |
| 2751 | + private void printFloat(Object arg, Locale l) throws IOException { | |
| 2752 | + if (arg == null) | |
| 2753 | + print("null"); | |
| 2754 | + else if (arg instanceof Float) | |
| 2755 | + print(((Float)arg).floatValue(), l); | |
| 2756 | + else if (arg instanceof Double) | |
| 2757 | + print(((Double)arg).doubleValue(), l); | |
| 2758 | + else if (arg instanceof BigDecimal) | |
| 2759 | + print(((BigDecimal)arg), l); | |
| 2760 | + else | |
| 2761 | + failConversion(c, arg); | |
| 2762 | + } | |
| 2763 | + | |
| 2764 | + private void printDateTime(Object arg, Locale l) throws IOException { | |
| 2765 | + if (arg == null) { | |
| 2766 | + print("null"); | |
| 2767 | + return; | |
| 2768 | + } | |
| 2769 | + Calendar cal = null; | |
| 2770 | + | |
| 2771 | + // Instead of Calendar.setLenient(true), perhaps we should | |
| 2772 | + // wrap the IllegalArgumentException that might be thrown? | |
| 2773 | + if (arg instanceof Long) { | |
| 2774 | + // Note that the following method uses an instance of the | |
| 2775 | + // default time zone (TimeZone.getDefaultRef(). | |
| 2776 | + cal = Calendar.getInstance(l == null ? Locale.US : l); | |
| 2777 | + cal.setTimeInMillis((Long)arg); | |
| 2778 | + } else if (arg instanceof Date) { | |
| 2779 | + // Note that the following method uses an instance of the | |
| 2780 | + // default time zone (TimeZone.getDefaultRef(). | |
| 2781 | + cal = Calendar.getInstance(l == null ? Locale.US : l); | |
| 2782 | + cal.setTime((Date)arg); | |
| 2783 | + } else if (arg instanceof Calendar) { | |
| 2784 | + cal = (Calendar) ((Calendar)arg).clone(); | |
| 2785 | + cal.setLenient(true); | |
| 2786 | + } else { | |
| 2787 | + failConversion(c, arg); | |
| 2788 | + } | |
| 2789 | + // Use the provided locale so that invocations of | |
| 2790 | + // localizedMagnitude() use optimizations for null. | |
| 2791 | + print(cal, c, l); | |
| 2792 | + } | |
| 2793 | + | |
| 2794 | + private void printCharacter(Object arg) throws IOException { | |
| 2795 | + if (arg == null) { | |
| 2796 | + print("null"); | |
| 2797 | + return; | |
| 2798 | + } | |
| 2799 | + String s = null; | |
| 2800 | + if (arg instanceof Character) { | |
| 2801 | + s = ((Character)arg).toString(); | |
| 2802 | + } else if (arg instanceof Byte) { | |
| 2803 | + byte i = ((Byte)arg).byteValue(); | |
| 2804 | + if (Character.isValidCodePoint(i)) | |
| 2805 | + s = new String(Character.toChars(i)); | |
| 2806 | + else | |
| 2807 | + throw new IllegalFormatCodePointException(i); | |
| 2808 | + } else if (arg instanceof Short) { | |
| 2809 | + short i = ((Short)arg).shortValue(); | |
| 2810 | + if (Character.isValidCodePoint(i)) | |
| 2811 | + s = new String(Character.toChars(i)); | |
| 2812 | + else | |
| 2813 | + throw new IllegalFormatCodePointException(i); | |
| 2814 | + } else if (arg instanceof Integer) { | |
| 2815 | + int i = ((Integer)arg).intValue(); | |
| 2816 | + if (Character.isValidCodePoint(i)) | |
| 2817 | + s = new String(Character.toChars(i)); | |
| 2818 | + else | |
| 2819 | + throw new IllegalFormatCodePointException(i); | |
| 2820 | + } else { | |
| 2821 | + failConversion(c, arg); | |
| 2822 | + } | |
| 2823 | + print(s); | |
| 2824 | + } | |
| 2825 | + | |
| 2826 | + private void printString(Object arg, Locale l) throws IOException { | |
| 2827 | + if (arg instanceof Formattable) { | |
| 2828 | + Formatter fmt = Formatter.this; | |
| 2829 | + if (fmt.locale() != l) | |
| 2830 | + fmt = new Formatter(fmt.out(), l); | |
| 2831 | + ((Formattable)arg).formatTo(fmt, f.valueOf(), width, precision); | |
| 2832 | + } else { | |
| 2833 | + if (f.contains(Flags.ALTERNATE)) | |
| 2834 | + failMismatch(Flags.ALTERNATE, 's'); | |
| 2835 | + if (arg == null) | |
| 2836 | + print("null"); | |
| 2837 | + else | |
| 2838 | + print(arg.toString()); | |
| 2839 | + } | |
| 2840 | + } | |
| 2841 | + | |
| 2842 | + private void printBoolean(Object arg) throws IOException { | |
| 2843 | + String s; | |
| 2844 | + if (arg != null) | |
| 2845 | + s = ((arg instanceof Boolean) | |
| 2846 | + ? ((Boolean)arg).toString() | |
| 2847 | + : Boolean.toString(true)); | |
| 2848 | + else | |
| 2849 | + s = Boolean.toString(false); | |
| 2850 | + print(s); | |
| 2851 | + } | |
| 2852 | + | |
| 2853 | + private void printHashCode(Object arg) throws IOException { | |
| 2854 | + String s = (arg == null | |
| 2855 | + ? "null" | |
| 2856 | + : Integer.toHexString(arg.hashCode())); | |
| 2857 | + print(s); | |
| 2858 | + } | |
| 2859 | + | |
| 2860 | + private void print(String s) throws IOException { | |
| 2861 | + if (precision != -1 && precision < s.length()) | |
| 2862 | + s = s.substring(0, precision); | |
| 2863 | + if (f.contains(Flags.UPPERCASE)) | |
| 2864 | + s = s.toUpperCase(); | |
| 2865 | + a.append(justify(s)); | |
| 2866 | + } | |
| 2867 | + | |
| 2868 | + private String justify(String s) { | |
| 2869 | + if (width == -1) | |
| 2870 | + return s; | |
| 2871 | + StringBuilder sb = new StringBuilder(); | |
| 2872 | + boolean pad = f.contains(Flags.LEFT_JUSTIFY); | |
| 2873 | + int sp = width - s.length(); | |
| 2874 | + if (!pad) | |
| 2875 | + for (int i = 0; i < sp; i++) sb.append(' '); | |
| 2876 | + sb.append(s); | |
| 2877 | + if (pad) | |
| 2878 | + for (int i = 0; i < sp; i++) sb.append(' '); | |
| 2879 | + return sb.toString(); | |
| 2880 | + } | |
| 2881 | + | |
| 2882 | + public String toString() { | |
| 2883 | + StringBuilder sb = new StringBuilder('%'); | |
| 2884 | + // Flags.UPPERCASE is set internally for legal conversions. | |
| 2885 | + Flags dupf = f.dup().remove(Flags.UPPERCASE); | |
| 2886 | + sb.append(dupf.toString()); | |
| 2887 | + if (index > 0) | |
| 2888 | + sb.append(index).append('$'); | |
| 2889 | + if (width != -1) | |
| 2890 | + sb.append(width); | |
| 2891 | + if (precision != -1) | |
| 2892 | + sb.append('.').append(precision); | |
| 2893 | + if (dt) | |
| 2894 | + sb.append(f.contains(Flags.UPPERCASE) ? 'T' : 't'); | |
| 2895 | + sb.append(f.contains(Flags.UPPERCASE) | |
| 2896 | + ? Character.toUpperCase(c) : c); | |
| 2897 | + return sb.toString(); | |
| 2898 | + } | |
| 2899 | + | |
| 2900 | + private void checkGeneral() { | |
| 2901 | + if ((c == Conversion.BOOLEAN || c == Conversion.HASHCODE) | |
| 2902 | + && f.contains(Flags.ALTERNATE)) | |
| 2903 | + failMismatch(Flags.ALTERNATE, c); | |
| 2904 | + // '-' requires a width | |
| 2905 | + if (width == -1 && f.contains(Flags.LEFT_JUSTIFY)) | |
| 2906 | + throw new MissingFormatWidthException(toString()); | |
| 2907 | + checkBadFlags(Flags.PLUS, Flags.LEADING_SPACE, Flags.ZERO_PAD, | |
| 2908 | + Flags.GROUP, Flags.PARENTHESES); | |
| 2909 | + } | |
| 2910 | + | |
| 2911 | + private void checkDateTime() { | |
| 2912 | + if (precision != -1) | |
| 2913 | + throw new IllegalFormatPrecisionException(precision); | |
| 2914 | + if (!DateTime.isValid(c)) | |
| 2915 | + throw new UnknownFormatConversionException("t" + c); | |
| 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 checkCharacter() { | |
| 2924 | + if (precision != -1) | |
| 2925 | + throw new IllegalFormatPrecisionException(precision); | |
| 2926 | + checkBadFlags(Flags.ALTERNATE, Flags.PLUS, Flags.LEADING_SPACE, | |
| 2927 | + Flags.ZERO_PAD, Flags.GROUP, Flags.PARENTHESES); | |
| 2928 | + // '-' requires a width | |
| 2929 | + if (width == -1 && f.contains(Flags.LEFT_JUSTIFY)) | |
| 2930 | + throw new MissingFormatWidthException(toString()); | |
| 2931 | + } | |
| 2932 | + | |
| 2933 | + private void checkInteger() { | |
| 2934 | + checkNumeric(); | |
| 2935 | + if (precision != -1) | |
| 2936 | + throw new IllegalFormatPrecisionException(precision); | |
| 2937 | + | |
| 2938 | + if (c == Conversion.DECIMAL_INTEGER) | |
| 2939 | + checkBadFlags(Flags.ALTERNATE); | |
| 2940 | + else if (c == Conversion.OCTAL_INTEGER) | |
| 2941 | + checkBadFlags(Flags.GROUP); | |
| 2942 | + else | |
| 2943 | + checkBadFlags(Flags.GROUP); | |
| 2944 | + } | |
| 2945 | + | |
| 2946 | + private void checkBadFlags(Flags ... badFlags) { | |
| 2947 | + for (int i = 0; i < badFlags.length; i++) | |
| 2948 | + if (f.contains(badFlags[i])) | |
| 2949 | + failMismatch(badFlags[i], c); | |
| 2950 | + } | |
| 2951 | + | |
| 2952 | + private void checkFloat() { | |
| 2953 | + checkNumeric(); | |
| 2954 | + if (c == Conversion.DECIMAL_FLOAT) { | |
| 2955 | + } else if (c == Conversion.HEXADECIMAL_FLOAT) { | |
| 2956 | + checkBadFlags(Flags.PARENTHESES, Flags.GROUP); | |
| 2957 | + } else if (c == Conversion.SCIENTIFIC) { | |
| 2958 | + checkBadFlags(Flags.GROUP); | |
| 2959 | + } else if (c == Conversion.GENERAL) { | |
| 2960 | + checkBadFlags(Flags.ALTERNATE); | |
| 2961 | + } | |
| 2962 | + } | |
| 2963 | + | |
| 2964 | + private void checkNumeric() { | |
| 2965 | + if (width != -1 && width < 0) | |
| 2966 | + throw new IllegalFormatWidthException(width); | |
| 2967 | + | |
| 2968 | + if (precision != -1 && precision < 0) | |
| 2969 | + throw new IllegalFormatPrecisionException(precision); | |
| 2970 | + | |
| 2971 | + // '-' and '0' require a width | |
| 2972 | + if (width == -1 | |
| 2973 | + && (f.contains(Flags.LEFT_JUSTIFY) || f.contains(Flags.ZERO_PAD))) | |
| 2974 | + throw new MissingFormatWidthException(toString()); | |
| 2975 | + | |
| 2976 | + // bad combination | |
| 2977 | + if ((f.contains(Flags.PLUS) && f.contains(Flags.LEADING_SPACE)) | |
| 2978 | + || (f.contains(Flags.LEFT_JUSTIFY) && f.contains(Flags.ZERO_PAD))) | |
| 2979 | + throw new IllegalFormatFlagsException(f.toString()); | |
| 2980 | + } | |
| 2981 | + | |
| 2982 | + private void checkText() { | |
| 2983 | + if (precision != -1) | |
| 2984 | + throw new IllegalFormatPrecisionException(precision); | |
| 2985 | + switch (c) { | |
| 2986 | + case Conversion.PERCENT_SIGN: | |
| 2987 | + if (f.valueOf() != Flags.LEFT_JUSTIFY.valueOf() | |
| 2988 | + && f.valueOf() != Flags.NONE.valueOf()) | |
| 2989 | + throw new IllegalFormatFlagsException(f.toString()); | |
| 2990 | + // '-' requires a width | |
| 2991 | + if (width == -1 && f.contains(Flags.LEFT_JUSTIFY)) | |
| 2992 | + throw new MissingFormatWidthException(toString()); | |
| 2993 | + break; | |
| 2994 | + case Conversion.LINE_SEPARATOR: | |
| 2995 | + if (width != -1) | |
| 2996 | + throw new IllegalFormatWidthException(width); | |
| 2997 | + if (f.valueOf() != Flags.NONE.valueOf()) | |
| 2998 | + throw new IllegalFormatFlagsException(f.toString()); | |
| 2999 | + break; | |
| 3000 | + default: | |
| 3001 | + assert false; | |
| 3002 | + } | |
| 3003 | + } | |
| 3004 | + | |
| 3005 | + private void print(byte value, Locale l) throws IOException { | |
| 3006 | + long v = value; | |
| 3007 | + if (value < 0 | |
| 3008 | + && (c == Conversion.OCTAL_INTEGER | |
| 3009 | + || c == Conversion.HEXADECIMAL_INTEGER)) { | |
| 3010 | + v += (1L << 8); | |
| 3011 | + assert v >= 0 : v; | |
| 3012 | + } | |
| 3013 | + print(v, l); | |
| 3014 | + } | |
| 3015 | + | |
| 3016 | + private void print(short value, Locale l) throws IOException { | |
| 3017 | + long v = value; | |
| 3018 | + if (value < 0 | |
| 3019 | + && (c == Conversion.OCTAL_INTEGER | |
| 3020 | + || c == Conversion.HEXADECIMAL_INTEGER)) { | |
| 3021 | + v += (1L << 16); | |
| 3022 | + assert v >= 0 : v; | |
| 3023 | + } | |
| 3024 | + print(v, l); | |
| 3025 | + } | |
| 3026 | + | |
| 3027 | + private void print(int value, Locale l) throws IOException { | |
| 3028 | + long v = value; | |
| 3029 | + if (value < 0 | |
| 3030 | + && (c == Conversion.OCTAL_INTEGER | |
| 3031 | + || c == Conversion.HEXADECIMAL_INTEGER)) { | |
| 3032 | + v += (1L << 32); | |
| 3033 | + assert v >= 0 : v; | |
| 3034 | + } | |
| 3035 | + print(v, l); | |
| 3036 | + } | |
| 3037 | + | |
| 3038 | + private void print(long value, Locale l) throws IOException { | |
| 3039 | + | |
| 3040 | + StringBuilder sb = new StringBuilder(); | |
| 3041 | + | |
| 3042 | + if (c == Conversion.DECIMAL_INTEGER) { | |
| 3043 | + boolean neg = value < 0; | |
| 3044 | + char[] va; | |
| 3045 | + if (value < 0) | |
| 3046 | + va = Long.toString(value, 10).substring(1).toCharArray(); | |
| 3047 | + else | |
| 3048 | + va = Long.toString(value, 10).toCharArray(); | |
| 3049 | + | |
| 3050 | + // leading sign indicator | |
| 3051 | + leadingSign(sb, neg); | |
| 3052 | + | |
| 3053 | + // the value | |
| 3054 | + localizedMagnitude(sb, va, f, adjustWidth(width, f, neg), l); | |
| 3055 | + | |
| 3056 | + // trailing sign indicator | |
| 3057 | + trailingSign(sb, neg); | |
| 3058 | + } else if (c == Conversion.OCTAL_INTEGER) { | |
| 3059 | + checkBadFlags(Flags.PARENTHESES, Flags.LEADING_SPACE, | |
| 3060 | + Flags.PLUS); | |
| 3061 | + String s = Long.toOctalString(value); | |
| 3062 | + int len = (f.contains(Flags.ALTERNATE) | |
| 3063 | + ? s.length() + 1 | |
| 3064 | + : s.length()); | |
| 3065 | + | |
| 3066 | + // apply ALTERNATE (radix indicator for octal) before ZERO_PAD | |
| 3067 | + if (f.contains(Flags.ALTERNATE)) | |
| 3068 | + sb.append('0'); | |
| 3069 | + if (f.contains(Flags.ZERO_PAD)) | |
| 3070 | + for (int i = 0; i < width - len; i++) sb.append('0'); | |
| 3071 | + sb.append(s); | |
| 3072 | + } else if (c == Conversion.HEXADECIMAL_INTEGER) { | |
| 3073 | + checkBadFlags(Flags.PARENTHESES, Flags.LEADING_SPACE, | |
| 3074 | + Flags.PLUS); | |
| 3075 | + String s = Long.toHexString(value); | |
| 3076 | + int len = (f.contains(Flags.ALTERNATE) | |
| 3077 | + ? s.length() + 2 | |
| 3078 | + : s.length()); | |
| 3079 | + | |
| 3080 | + // apply ALTERNATE (radix indicator for hex) before ZERO_PAD | |
| 3081 | + if (f.contains(Flags.ALTERNATE)) | |
| 3082 | + sb.append(f.contains(Flags.UPPERCASE) ? "0X" : "0x"); | |
| 3083 | + if (f.contains(Flags.ZERO_PAD)) | |
| 3084 | + for (int i = 0; i < width - len; i++) sb.append('0'); | |
| 3085 | + if (f.contains(Flags.UPPERCASE)) | |
| 3086 | + s = s.toUpperCase(); | |
| 3087 | + sb.append(s); | |
| 3088 | + } | |
| 3089 | + | |
| 3090 | + // justify based on width | |
| 3091 | + a.append(justify(sb.toString())); | |
| 3092 | + } | |
| 3093 | + | |
| 3094 | + // neg := val < 0 | |
| 3095 | + private StringBuilder leadingSign(StringBuilder sb, boolean neg) { | |
| 3096 | + if (!neg) { | |
| 3097 | + if (f.contains(Flags.PLUS)) { | |
| 3098 | + sb.append('+'); | |
| 3099 | + } else if (f.contains(Flags.LEADING_SPACE)) { | |
| 3100 | + sb.append(' '); | |
| 3101 | + } | |
| 3102 | + } else { | |
| 3103 | + if (f.contains(Flags.PARENTHESES)) | |
| 3104 | + sb.append('('); | |
| 3105 | + else | |
| 3106 | + sb.append('-'); | |
| 3107 | + } | |
| 3108 | + return sb; | |
| 3109 | + } | |
| 3110 | + | |
| 3111 | + // neg := val < 0 | |
| 3112 | + private StringBuilder trailingSign(StringBuilder sb, boolean neg) { | |
| 3113 | + if (neg && f.contains(Flags.PARENTHESES)) | |
| 3114 | + sb.append(')'); | |
| 3115 | + return sb; | |
| 3116 | + } | |
| 3117 | + | |
| 3118 | + private void print(BigInteger value, Locale l) throws IOException { | |
| 3119 | + StringBuilder sb = new StringBuilder(); | |
| 3120 | + boolean neg = value.signum() == -1; | |
| 3121 | + BigInteger v = value.abs(); | |
| 3122 | + | |
| 3123 | + // leading sign indicator | |
| 3124 | + leadingSign(sb, neg); | |
| 3125 | + | |
| 3126 | + // the value | |
| 3127 | + if (c == Conversion.DECIMAL_INTEGER) { | |
| 3128 | + char[] va = v.toString().toCharArray(); | |
| 3129 | + localizedMagnitude(sb, va, f, adjustWidth(width, f, neg), l); | |
| 3130 | + } else if (c == Conversion.OCTAL_INTEGER) { | |
| 3131 | + String s = v.toString(8); | |
| 3132 | + | |
| 3133 | + int len = s.length() + sb.length(); | |
| 3134 | + if (neg && f.contains(Flags.PARENTHESES)) | |
| 3135 | + len++; | |
| 3136 | + | |
| 3137 | + // apply ALTERNATE (radix indicator for octal) before ZERO_PAD | |
| 3138 | + if (f.contains(Flags.ALTERNATE)) { | |
| 3139 | + len++; | |
| 3140 | + sb.append('0'); | |
| 3141 | + } | |
| 3142 | + if (f.contains(Flags.ZERO_PAD)) { | |
| 3143 | + for (int i = 0; i < width - len; i++) | |
| 3144 | + sb.append('0'); | |
| 3145 | + } | |
| 3146 | + sb.append(s); | |
| 3147 | + } else if (c == Conversion.HEXADECIMAL_INTEGER) { | |
| 3148 | + String s = v.toString(16); | |
| 3149 | + | |
| 3150 | + int len = s.length() + sb.length(); | |
| 3151 | + if (neg && f.contains(Flags.PARENTHESES)) | |
| 3152 | + len++; | |
| 3153 | + | |
| 3154 | + // apply ALTERNATE (radix indicator for hex) before ZERO_PAD | |
| 3155 | + if (f.contains(Flags.ALTERNATE)) { | |
| 3156 | + len += 2; | |
| 3157 | + sb.append(f.contains(Flags.UPPERCASE) ? "0X" : "0x"); | |
| 3158 | + } | |
| 3159 | + if (f.contains(Flags.ZERO_PAD)) | |
| 3160 | + for (int i = 0; i < width - len; i++) | |
| 3161 | + sb.append('0'); | |
| 3162 | + if (f.contains(Flags.UPPERCASE)) | |
| 3163 | + s = s.toUpperCase(); | |
| 3164 | + sb.append(s); | |
| 3165 | + } | |
| 3166 | + | |
| 3167 | + // trailing sign indicator | |
| 3168 | + trailingSign(sb, (value.signum() == -1)); | |
| 3169 | + | |
| 3170 | + // justify based on width | |
| 3171 | + a.append(justify(sb.toString())); | |
| 3172 | + } | |
| 3173 | + | |
| 3174 | + private void print(float value, Locale l) throws IOException { | |
| 3175 | + print((double) value, l); | |
| 3176 | + } | |
| 3177 | + | |
| 3178 | + private void print(double value, Locale l) throws IOException { | |
| 3179 | + StringBuilder sb = new StringBuilder(); | |
| 3180 | + boolean neg = Double.compare(value, 0.0) == -1; | |
| 3181 | + | |
| 3182 | + if (!Double.isNaN(value)) { | |
| 3183 | + double v = Math.abs(value); | |
| 3184 | + | |
| 3185 | + // leading sign indicator | |
| 3186 | + leadingSign(sb, neg); | |
| 3187 | + | |
| 3188 | + // the value | |
| 3189 | + if (!Double.isInfinite(v)) | |
| 3190 | + print(sb, v, l, f, c, precision, neg); | |
| 3191 | + else | |
| 3192 | + sb.append(f.contains(Flags.UPPERCASE) | |
| 3193 | + ? "INFINITY" : "Infinity"); | |
| 3194 | + | |
| 3195 | + // trailing sign indicator | |
| 3196 | + trailingSign(sb, neg); | |
| 3197 | + } else { | |
| 3198 | + sb.append(f.contains(Flags.UPPERCASE) ? "NAN" : "NaN"); | |
| 3199 | + } | |
| 3200 | + | |
| 3201 | + // justify based on width | |
| 3202 | + a.append(justify(sb.toString())); | |
| 3203 | + } | |
| 3204 | + | |
| 3205 | + // !Double.isInfinite(value) && !Double.isNaN(value) | |
| 3206 | + private void print(StringBuilder sb, double value, Locale l, | |
| 3207 | + Flags f, char c, int precision, boolean neg) | |
| 3208 | + throws IOException | |
| 3209 | + { | |
| 3210 | + if (c == Conversion.SCIENTIFIC) { | |
| 3211 | + // Create a new FormattedFloatingDecimal with the desired | |
| 3212 | + // precision. | |
| 3213 | + int prec = (precision == -1 ? 6 : precision); | |
| 3214 | + | |
| 3215 | + FormattedFloatingDecimal fd | |
| 3216 | + = new FormattedFloatingDecimal(value, prec, | |
| 3217 | + FormattedFloatingDecimal.Form.SCIENTIFIC); | |
| 3218 | + | |
| 3219 | + char[] v = new char[MAX_FD_CHARS]; | |
| 3220 | + int len = fd.getChars(v); | |
| 3221 | + | |
| 3222 | + char[] mant = addZeros(mantissa(v, len), prec); | |
| 3223 | + | |
| 3224 | + // If the precision is zero and the '#' flag is set, add the | |
| 3225 | + // requested decimal point. | |
| 3226 | + if (f.contains(Flags.ALTERNATE) && (prec == 0)) | |
| 3227 | + mant = addDot(mant); | |
| 3228 | + | |
| 3229 | + char[] exp = (value == 0.0) | |
| 3230 | + ? new char[] {'+','0','0'} : exponent(v, len); | |
| 3231 | + | |
| 3232 | + int newW = width; | |
| 3233 | + if (width != -1) | |
| 3234 | + newW = adjustWidth(width - exp.length - 1, f, neg); | |
| 3235 | + localizedMagnitude(sb, mant, f, newW, l); | |
| 3236 | + | |
| 3237 | + sb.append(f.contains(Flags.UPPERCASE) ? 'E' : 'e'); | |
| 3238 | + | |
| 3239 | + Flags flags = f.dup().remove(Flags.GROUP); | |
| 3240 | + char sign = exp[0]; | |
| 3241 | + assert(sign == '+' || sign == '-'); | |
| 3242 | + sb.append(sign); | |
| 3243 | + | |
| 3244 | + char[] tmp = new char[exp.length - 1]; | |
| 3245 | + System.arraycopy(exp, 1, tmp, 0, exp.length - 1); | |
| 3246 | + sb.append(localizedMagnitude(null, tmp, flags, -1, l)); | |
| 3247 | + } else if (c == Conversion.DECIMAL_FLOAT) { | |
| 3248 | + // Create a new FormattedFloatingDecimal with the desired | |
| 3249 | + // precision. | |
| 3250 | + int prec = (precision == -1 ? 6 : precision); | |
| 3251 | + | |
| 3252 | + FormattedFloatingDecimal fd | |
| 3253 | + = new FormattedFloatingDecimal(value, prec, | |
| 3254 | + FormattedFloatingDecimal.Form.DECIMAL_FLOAT); | |
| 3255 | + | |
| 3256 | + // MAX_FD_CHARS + 1 (round?) | |
| 3257 | + char[] v = new char[MAX_FD_CHARS + 1 | |
| 3258 | + + Math.abs(fd.getExponent())]; | |
| 3259 | + int len = fd.getChars(v); | |
| 3260 | + | |
| 3261 | + char[] mant = addZeros(mantissa(v, len), prec); | |
| 3262 | + | |
| 3263 | + // If the precision is zero and the '#' flag is set, add the | |
| 3264 | + // requested decimal point. | |
| 3265 | + if (f.contains(Flags.ALTERNATE) && (prec == 0)) | |
| 3266 | + mant = addDot(mant); | |
| 3267 | + | |
| 3268 | + int newW = width; | |
| 3269 | + if (width != -1) | |
| 3270 | + newW = adjustWidth(width, f, neg); | |
| 3271 | + localizedMagnitude(sb, mant, f, newW, l); | |
| 3272 | + } else if (c == Conversion.GENERAL) { | |
| 3273 | + int prec = precision; | |
| 3274 | + if (precision == -1) | |
| 3275 | + prec = 6; | |
| 3276 | + else if (precision == 0) | |
| 3277 | + prec = 1; | |
| 3278 | + | |
| 3279 | + FormattedFloatingDecimal fd | |
| 3280 | + = new FormattedFloatingDecimal(value, prec, | |
| 3281 | + FormattedFloatingDecimal.Form.GENERAL); | |
| 3282 | + | |
| 3283 | + // MAX_FD_CHARS + 1 (round?) | |
| 3284 | + char[] v = new char[MAX_FD_CHARS + 1 | |
| 3285 | + + Math.abs(fd.getExponent())]; | |
| 3286 | + int len = fd.getChars(v); | |
| 3287 | + | |
| 3288 | + char[] exp = exponent(v, len); | |
| 3289 | + if (exp != null) { | |
| 3290 | + prec -= 1; | |
| 3291 | + } else { | |
| 3292 | + prec = prec - (value == 0 ? 0 : fd.getExponentRounded()) - 1; | |
| 3293 | + } | |
| 3294 | + | |
| 3295 | + char[] mant = addZeros(mantissa(v, len), prec); | |
| 3296 | + // If the precision is zero and the '#' flag is set, add the | |
| 3297 | + // requested decimal point. | |
| 3298 | + if (f.contains(Flags.ALTERNATE) && (prec == 0)) | |
| 3299 | + mant = addDot(mant); | |
| 3300 | + | |
| 3301 | + int newW = width; | |
| 3302 | + if (width != -1) { | |
| 3303 | + if (exp != null) | |
| 3304 | + newW = adjustWidth(width - exp.length - 1, f, neg); | |
| 3305 | + else | |
| 3306 | + newW = adjustWidth(width, f, neg); | |
| 3307 | + } | |
| 3308 | + localizedMagnitude(sb, mant, f, newW, l); | |
| 3309 | + | |
| 3310 | + if (exp != null) { | |
| 3311 | + sb.append(f.contains(Flags.UPPERCASE) ? 'E' : 'e'); | |
| 3312 | + | |
| 3313 | + Flags flags = f.dup().remove(Flags.GROUP); | |
| 3314 | + char sign = exp[0]; | |
| 3315 | + assert(sign == '+' || sign == '-'); | |
| 3316 | + sb.append(sign); | |
| 3317 | + | |
| 3318 | + char[] tmp = new char[exp.length - 1]; | |
| 3319 | + System.arraycopy(exp, 1, tmp, 0, exp.length - 1); | |
| 3320 | + sb.append(localizedMagnitude(null, tmp, flags, -1, l)); | |
| 3321 | + } | |
| 3322 | + } else if (c == Conversion.HEXADECIMAL_FLOAT) { | |
| 3323 | + int prec = precision; | |
| 3324 | + if (precision == -1) | |
| 3325 | + // assume that we want all of the digits | |
| 3326 | + prec = 0; | |
| 3327 | + else if (precision == 0) | |
| 3328 | + prec = 1; | |
| 3329 | + | |
| 3330 | + String s = hexDouble(value, prec); | |
| 3331 | + | |
| 3332 | + char[] va; | |
| 3333 | + boolean upper = f.contains(Flags.UPPERCASE); | |
| 3334 | + sb.append(upper ? "0X" : "0x"); | |
| 3335 | + | |
| 3336 | + if (f.contains(Flags.ZERO_PAD)) | |
| 3337 | + for (int i = 0; i < width - s.length() - 2; i++) | |
| 3338 | + sb.append('0'); | |
| 3339 | + | |
| 3340 | + int idx = s.indexOf('p'); | |
| 3341 | + va = s.substring(0, idx).toCharArray(); | |
| 3342 | + if (upper) { | |
| 3343 | + String tmp = new String(va); | |
| 3344 | + // don't localize hex | |
| 3345 | + tmp = tmp.toUpperCase(Locale.US); | |
| 3346 | + va = tmp.toCharArray(); | |
| 3347 | + } | |
| 3348 | + sb.append(prec != 0 ? addZeros(va, prec) : va); | |
| 3349 | + sb.append(upper ? 'P' : 'p'); | |
| 3350 | + sb.append(s.substring(idx+1)); | |
| 3351 | + } | |
| 3352 | + } | |
| 3353 | + | |
| 3354 | + private char[] mantissa(char[] v, int len) { | |
| 3355 | + int i; | |
| 3356 | + for (i = 0; i < len; i++) { | |
| 3357 | + if (v[i] == 'e') | |
| 3358 | + break; | |
| 3359 | + } | |
| 3360 | + char[] tmp = new char[i]; | |
| 3361 | + System.arraycopy(v, 0, tmp, 0, i); | |
| 3362 | + return tmp; | |
| 3363 | + } | |
| 3364 | + | |
| 3365 | + private char[] exponent(char[] v, int len) { | |
| 3366 | + int i; | |
| 3367 | + for (i = len - 1; i >= 0; i--) { | |
| 3368 | + if (v[i] == 'e') | |
| 3369 | + break; | |
| 3370 | + } | |
| 3371 | + if (i == -1) | |
| 3372 | + return null; | |
| 3373 | + char[] tmp = new char[len - i - 1]; | |
| 3374 | + System.arraycopy(v, i + 1, tmp, 0, len - i - 1); | |
| 3375 | + return tmp; | |
| 3376 | + } | |
| 3377 | + | |
| 3378 | + // Add zeros to the requested precision. | |
| 3379 | + private char[] addZeros(char[] v, int prec) { | |
| 3380 | + // Look for the dot. If we don't find one, the we'll need to add | |
| 3381 | + // it before we add the zeros. | |
| 3382 | + int i; | |
| 3383 | + for (i = 0; i < v.length; i++) { | |
| 3384 | + if (v[i] == '.') | |
| 3385 | + break; | |
| 3386 | + } | |
| 3387 | + boolean needDot = false; | |
| 3388 | + if (i == v.length) { | |
| 3389 | + needDot = true; | |
| 3390 | + } | |
| 3391 | + | |
| 3392 | + // Determine existing precision. | |
| 3393 | + int outPrec = v.length - i - (needDot ? 0 : 1); | |
| 3394 | + assert (outPrec <= prec); | |
| 3395 | + if (outPrec == prec) | |
| 3396 | + return v; | |
| 3397 | + | |
| 3398 | + // Create new array with existing contents. | |
| 3399 | + char[] tmp | |
| 3400 | + = new char[v.length + prec - outPrec + (needDot ? 1 : 0)]; | |
| 3401 | + System.arraycopy(v, 0, tmp, 0, v.length); | |
| 3402 | + | |
| 3403 | + // Add dot if previously determined to be necessary. | |
| 3404 | + int start = v.length; | |
| 3405 | + if (needDot) { | |
| 3406 | + tmp[v.length] = '.'; | |
| 3407 | + start++; | |
| 3408 | + } | |
| 3409 | + | |
| 3410 | + // Add zeros. | |
| 3411 | + for (int j = start; j < tmp.length; j++) | |
| 3412 | + tmp[j] = '0'; | |
| 3413 | + | |
| 3414 | + return tmp; | |
| 3415 | + } | |
| 3416 | + | |
| 3417 | + // Method assumes that d > 0. | |
| 3418 | + private String hexDouble(double d, int prec) { | |
| 3419 | + // Let Double.toHexString handle simple cases | |
| 3420 | + if(!FpUtils.isFinite(d) || d == 0.0 || prec == 0 || prec >= 13) | |
| 3421 | + // remove "0x" | |
| 3422 | + return Double.toHexString(d).substring(2); | |
| 3423 | + else { | |
| 3424 | + assert(prec >= 1 && prec <= 12); | |
| 3425 | + | |
| 3426 | + int exponent = FpUtils.getExponent(d); | |
| 3427 | + boolean subnormal | |
| 3428 | + = (exponent == DoubleConsts.MIN_EXPONENT - 1); | |
| 3429 | + | |
| 3430 | + // If this is subnormal input so normalize (could be faster to | |
| 3431 | + // do as integer operation). | |
| 3432 | + if (subnormal) { | |
| 3433 | + scaleUp = FpUtils.scalb(1.0, 54); | |
| 3434 | + d *= scaleUp; | |
| 3435 | + // Calculate the exponent. This is not just exponent + 54 | |
| 3436 | + // since the former is not the normalized exponent. | |
| 3437 | + exponent = FpUtils.getExponent(d); | |
| 3438 | + assert exponent >= DoubleConsts.MIN_EXPONENT && | |
| 3439 | + exponent <= DoubleConsts.MAX_EXPONENT: exponent; | |
| 3440 | + } | |
| 3441 | + | |
| 3442 | + int precision = 1 + prec*4; | |
| 3443 | + int shiftDistance | |
| 3444 | + = DoubleConsts.SIGNIFICAND_WIDTH - precision; | |
| 3445 | + assert(shiftDistance >= 1 && shiftDistance < DoubleConsts.SIGNIFICAND_WIDTH); | |
| 3446 | + | |
| 3447 | + long doppel = Double.doubleToLongBits(d); | |
| 3448 | + // Deterime the number of bits to keep. | |
| 3449 | + long newSignif | |
| 3450 | + = (doppel & (DoubleConsts.EXP_BIT_MASK | |
| 3451 | + | DoubleConsts.SIGNIF_BIT_MASK)) | |
| 3452 | + >> shiftDistance; | |
| 3453 | + // Bits to round away. | |
| 3454 | + long roundingBits = doppel & ~(~0L << shiftDistance); | |
| 3455 | + | |
| 3456 | + // To decide how to round, look at the low-order bit of the | |
| 3457 | + // working significand, the highest order discarded bit (the | |
| 3458 | + // round bit) and whether any of the lower order discarded bits | |
| 3459 | + // are nonzero (the sticky bit). | |
| 3460 | + | |
| 3461 | + boolean leastZero = (newSignif & 0x1L) == 0L; | |
| 3462 | + boolean round | |
| 3463 | + = ((1L << (shiftDistance - 1) ) & roundingBits) != 0L; | |
| 3464 | + boolean sticky = shiftDistance > 1 && | |
| 3465 | + (~(1L<< (shiftDistance - 1)) & roundingBits) != 0; | |
| 3466 | + if((leastZero && round && sticky) || (!leastZero && round)) { | |
| 3467 | + newSignif++; | |
| 3468 | + } | |
| 3469 | + | |
| 3470 | + long signBit = doppel & DoubleConsts.SIGN_BIT_MASK; | |
| 3471 | + newSignif = signBit | (newSignif << shiftDistance); | |
| 3472 | + double result = Double.longBitsToDouble(newSignif); | |
| 3473 | + | |
| 3474 | + if (Double.isInfinite(result) ) { | |
| 3475 | + // Infinite result generated by rounding | |
| 3476 | + return "1.0p1024"; | |
| 3477 | + } else { | |
| 3478 | + String res = Double.toHexString(result).substring(2); | |
| 3479 | + if (!subnormal) | |
| 3480 | + return res; | |
| 3481 | + else { | |
| 3482 | + // Create a normalized subnormal string. | |
| 3483 | + int idx = res.indexOf('p'); | |
| 3484 | + if (idx == -1) { | |
| 3485 | + // No 'p' character in hex string. | |
| 3486 | + assert false; | |
| 3487 | + return null; | |
| 3488 | + } else { | |
| 3489 | + // Get exponent and append at the end. | |
| 3490 | + String exp = res.substring(idx + 1); | |
| 3491 | + int iexp = Integer.parseInt(exp) -54; | |
| 3492 | + return res.substring(0, idx) + "p" | |
| 3493 | + + Integer.toString(iexp); | |
| 3494 | + } | |
| 3495 | + } | |
| 3496 | + } | |
| 3497 | + } | |
| 3498 | + } | |
| 3499 | + | |
| 3500 | + private void print(BigDecimal value, Locale l) throws IOException { | |
| 3501 | + if (c == Conversion.HEXADECIMAL_FLOAT) | |
| 3502 | + failConversion(c, value); | |
| 3503 | + StringBuilder sb = new StringBuilder(); | |
| 3504 | + boolean neg = value.signum() == -1; | |
| 3505 | + BigDecimal v = value.abs(); | |
| 3506 | + // leading sign indicator | |
| 3507 | + leadingSign(sb, neg); | |
| 3508 | + | |
| 3509 | + // the value | |
| 3510 | + print(sb, v, l, f, c, precision, neg); | |
| 3511 | + | |
| 3512 | + // trailing sign indicator | |
| 3513 | + trailingSign(sb, neg); | |
| 3514 | + | |
| 3515 | + // justify based on width | |
| 3516 | + a.append(justify(sb.toString())); | |
| 3517 | + } | |
| 3518 | + | |
| 3519 | + // value > 0 | |
| 3520 | + private void print(StringBuilder sb, BigDecimal value, Locale l, | |
| 3521 | + Flags f, char c, int precision, boolean neg) | |
| 3522 | + throws IOException | |
| 3523 | + { | |
| 3524 | + if (c == Conversion.SCIENTIFIC) { | |
| 3525 | + // Create a new BigDecimal with the desired precision. | |
| 3526 | + int prec = (precision == -1 ? 6 : precision); | |
| 3527 | + int scale = value.scale(); | |
| 3528 | + int origPrec = value.precision(); | |
| 3529 | + int nzeros = 0; | |
| 3530 | + int compPrec; | |
| 3531 | + | |
| 3532 | + if (prec > origPrec - 1) { | |
| 3533 | + compPrec = origPrec; | |
| 3534 | + nzeros = prec - (origPrec - 1); | |
| 3535 | + } else { | |
| 3536 | + compPrec = prec + 1; | |
| 3537 | + } | |
| 3538 | + | |
| 3539 | + MathContext mc = new MathContext(compPrec); | |
| 3540 | + BigDecimal v | |
| 3541 | + = new BigDecimal(value.unscaledValue(), scale, mc); | |
| 3542 | + | |
| 3543 | + BigDecimalLayout bdl | |
| 3544 | + = new BigDecimalLayout(v.unscaledValue(), v.scale(), | |
| 3545 | + BigDecimalLayoutForm.SCIENTIFIC); | |
| 3546 | + | |
| 3547 | + char[] mant = bdl.mantissa(); | |
| 3548 | + | |
| 3549 | + // Add a decimal point if necessary. The mantissa may not | |
| 3550 | + // contain a decimal point if the scale is zero (the internal | |
| 3551 | + // representation has no fractional part) or the original | |
| 3552 | + // precision is one. Append a decimal point if '#' is set or if | |
| 3553 | + // we require zero padding to get to the requested precision. | |
| 3554 | + if ((origPrec == 1 || !bdl.hasDot()) | |
| 3555 | + && (nzeros > 0 || (f.contains(Flags.ALTERNATE)))) | |
| 3556 | + mant = addDot(mant); | |
| 3557 | + | |
| 3558 | + // Add trailing zeros in the case precision is greater than | |
| 3559 | + // the number of available digits after the decimal separator. | |
| 3560 | + mant = trailingZeros(mant, nzeros); | |
| 3561 | + | |
| 3562 | + char[] exp = bdl.exponent(); | |
| 3563 | + int newW = width; | |
| 3564 | + if (width != -1) | |
| 3565 | + newW = adjustWidth(width - exp.length - 1, f, neg); | |
| 3566 | + localizedMagnitude(sb, mant, f, newW, l); | |
| 3567 | + | |
| 3568 | + sb.append(f.contains(Flags.UPPERCASE) ? 'E' : 'e'); | |
| 3569 | + | |
| 3570 | + Flags flags = f.dup().remove(Flags.GROUP); | |
| 3571 | + char sign = exp[0]; | |
| 3572 | + assert(sign == '+' || sign == '-'); | |
| 3573 | + sb.append(exp[0]); | |
| 3574 | + | |
| 3575 | + char[] tmp = new char[exp.length - 1]; | |
| 3576 | + System.arraycopy(exp, 1, tmp, 0, exp.length - 1); | |
| 3577 | + sb.append(localizedMagnitude(null, tmp, flags, -1, l)); | |
| 3578 | + } else if (c == Conversion.DECIMAL_FLOAT) { | |
| 3579 | + // Create a new BigDecimal with the desired precision. | |
| 3580 | + int prec = (precision == -1 ? 6 : precision); | |
| 3581 | + int scale = value.scale(); | |
| 3582 | + | |
| 3583 | + if (scale > prec) { | |
| 3584 | + // more "scale" digits than the requested "precision" | |
| 3585 | + int compPrec = value.precision(); | |
| 3586 | + if (compPrec <= scale) { | |
| 3587 | + // case of 0.xxxxxx | |
| 3588 | + value = value.setScale(prec, RoundingMode.HALF_UP); | |
| 3589 | + } else { | |
| 3590 | + compPrec -= (scale - prec); | |
| 3591 | + value = new BigDecimal(value.unscaledValue(), | |
| 3592 | + scale, | |
| 3593 | + new MathContext(compPrec)); | |
| 3594 | + } | |
| 3595 | + } | |
| 3596 | + BigDecimalLayout bdl = new BigDecimalLayout( | |
| 3597 | + value.unscaledValue(), | |
| 3598 | + value.scale(), | |
| 3599 | + BigDecimalLayoutForm.DECIMAL_FLOAT); | |
| 3600 | + | |
| 3601 | + char mant[] = bdl.mantissa(); | |
| 3602 | + int nzeros = (bdl.scale() < prec ? prec - bdl.scale() : 0); | |
| 3603 | + | |
| 3604 | + // Add a decimal point if necessary. The mantissa may not | |
| 3605 | + // contain a decimal point if the scale is zero (the internal | |
| 3606 | + // representation has no fractional part). Append a decimal | |
| 3607 | + // point if '#' is set or we require zero padding to get to the | |
| 3608 | + // requested precision. | |
| 3609 | + if (bdl.scale() == 0 && (f.contains(Flags.ALTERNATE) || nzeros > 0)) | |
| 3610 | + mant = addDot(bdl.mantissa()); | |
| 3611 | + | |
| 3612 | + // Add trailing zeros if the precision is greater than the | |
| 3613 | + // number of available digits after the decimal separator. | |
| 3614 | + mant = trailingZeros(mant, nzeros); | |
| 3615 | + | |
| 3616 | + localizedMagnitude(sb, mant, f, adjustWidth(width, f, neg), l); | |
| 3617 | + } else if (c == Conversion.GENERAL) { | |
| 3618 | + int prec = precision; | |
| 3619 | + if (precision == -1) | |
| 3620 | + prec = 6; | |
| 3621 | + else if (precision == 0) | |
| 3622 | + prec = 1; | |
| 3623 | + | |
| 3624 | + BigDecimal tenToTheNegFour = BigDecimal.valueOf(1, 4); | |
| 3625 | + BigDecimal tenToThePrec = BigDecimal.valueOf(1, -prec); | |
| 3626 | + if ((value.equals(BigDecimal.ZERO)) | |
| 3627 | + || ((value.compareTo(tenToTheNegFour) != -1) | |
| 3628 | + && (value.compareTo(tenToThePrec) == -1))) { | |
| 3629 | + | |
| 3630 | + int e = - value.scale() | |
| 3631 | + + (value.unscaledValue().toString().length() - 1); | |
| 3632 | + | |
| 3633 | + // xxx.yyy | |
| 3634 | + // g precision (# sig digits) = #x + #y | |
| 3635 | + // f precision = #y | |
| 3636 | + // exponent = #x - 1 | |
| 3637 | + // => f precision = g precision - exponent - 1 | |
| 3638 | + // 0.000zzz | |
| 3639 | + // g precision (# sig digits) = #z | |
| 3640 | + // f precision = #0 (after '.') + #z | |
| 3641 | + // exponent = - #0 (after '.') - 1 | |
| 3642 | + // => f precision = g precision - exponent - 1 | |
| 3643 | + prec = prec - e - 1; | |
| 3644 | + | |
| 3645 | + print(sb, value, l, f, Conversion.DECIMAL_FLOAT, prec, | |
| 3646 | + neg); | |
| 3647 | + } else { | |
| 3648 | + print(sb, value, l, f, Conversion.SCIENTIFIC, prec - 1, neg); | |
| 3649 | + } | |
| 3650 | + } else if (c == Conversion.HEXADECIMAL_FLOAT) { | |
| 3651 | + // This conversion isn't supported. The error should be | |
| 3652 | + // reported earlier. | |
| 3653 | + assert false; | |
| 3654 | + } | |
| 3655 | + } | |
| 3656 | + | |
| 3657 | + private class BigDecimalLayout { | |
| 3658 | + private StringBuilder mant; | |
| 3659 | + private StringBuilder exp; | |
| 3660 | + private boolean dot = false; | |
| 3661 | + private int scale; | |
| 3662 | + | |
| 3663 | + public BigDecimalLayout(BigInteger intVal, int scale, BigDecimalLayoutForm form) { | |
| 3664 | + layout(intVal, scale, form); | |
| 3665 | + } | |
| 3666 | + | |
| 3667 | + public boolean hasDot() { | |
| 3668 | + return dot; | |
| 3669 | + } | |
| 3670 | + | |
| 3671 | + public int scale() { | |
| 3672 | + return scale; | |
| 3673 | + } | |
| 3674 | + | |
| 3675 | + // char[] with canonical string representation | |
| 3676 | + public char[] layoutChars() { | |
| 3677 | + StringBuilder sb = new StringBuilder(mant); | |
| 3678 | + if (exp != null) { | |
| 3679 | + sb.append('E'); | |
| 3680 | + sb.append(exp); | |
| 3681 | + } | |
| 3682 | + return toCharArray(sb); | |
| 3683 | + } | |
| 3684 | + | |
| 3685 | + public char[] mantissa() { | |
| 3686 | + return toCharArray(mant); | |
| 3687 | + } | |
| 3688 | + | |
| 3689 | + // The exponent will be formatted as a sign ('+' or '-') followed | |
| 3690 | + // by the exponent zero-padded to include at least two digits. | |
| 3691 | + public char[] exponent() { | |
| 3692 | + return toCharArray(exp); | |
| 3693 | + } | |
| 3694 | + | |
| 3695 | + private char[] toCharArray(StringBuilder sb) { | |
| 3696 | + if (sb == null) | |
| 3697 | + return null; | |
| 3698 | + char[] result = new char[sb.length()]; | |
| 3699 | + sb.getChars(0, result.length, result, 0); | |
| 3700 | + return result; | |
| 3701 | + } | |
| 3702 | + | |
| 3703 | + private void layout(BigInteger intVal, int scale, BigDecimalLayoutForm form) { | |
| 3704 | + char coeff[] = intVal.toString().toCharArray(); | |
| 3705 | + this.scale = scale; | |
| 3706 | + | |
| 3707 | + // Construct a buffer, with sufficient capacity for all cases. | |
| 3708 | + // If E-notation is needed, length will be: +1 if negative, +1 | |
| 3709 | + // if '.' needed, +2 for "E+", + up to 10 for adjusted | |
| 3710 | + // exponent. Otherwise it could have +1 if negative, plus | |
| 3711 | + // leading "0.00000" | |
| 3712 | + mant = new StringBuilder(coeff.length + 14); | |
| 3713 | + | |
| 3714 | + if (scale == 0) { | |
| 3715 | + int len = coeff.length; | |
| 3716 | + if (len > 1) { | |
| 3717 | + mant.append(coeff[0]); | |
| 3718 | + if (form == BigDecimalLayoutForm.SCIENTIFIC) { | |
| 3719 | + mant.append('.'); | |
| 3720 | + dot = true; | |
| 3721 | + mant.append(coeff, 1, len - 1); | |
| 3722 | + exp = new StringBuilder("+"); | |
| 3723 | + if (len < 10) | |
| 3724 | + exp.append("0").append(len - 1); | |
| 3725 | + else | |
| 3726 | + exp.append(len - 1); | |
| 3727 | + } else { | |
| 3728 | + mant.append(coeff, 1, len - 1); | |
| 3729 | + } | |
| 3730 | + } else { | |
| 3731 | + mant.append(coeff); | |
| 3732 | + if (form == BigDecimalLayoutForm.SCIENTIFIC) | |
| 3733 | + exp = new StringBuilder("+00"); | |
| 3734 | + } | |
| 3735 | + return; | |
| 3736 | + } | |
| 3737 | + long adjusted = -(long) scale + (coeff.length - 1); | |
| 3738 | + if (form == BigDecimalLayoutForm.DECIMAL_FLOAT) { | |
| 3739 | + // count of padding zeros | |
| 3740 | + int pad = scale - coeff.length; | |
| 3741 | + if (pad >= 0) { | |
| 3742 | + // 0.xxx form | |
| 3743 | + mant.append("0."); | |
| 3744 | + dot = true; | |
| 3745 | + for (; pad > 0 ; pad--) mant.append('0'); | |
| 3746 | + mant.append(coeff); | |
| 3747 | + } else { | |
| 3748 | + if (-pad < coeff.length) { | |
| 3749 | + // xx.xx form | |
| 3750 | + mant.append(coeff, 0, -pad); | |
| 3751 | + mant.append('.'); | |
| 3752 | + dot = true; | |
| 3753 | + mant.append(coeff, -pad, scale); | |
| 3754 | + } else { | |
| 3755 | + // xx form | |
| 3756 | + mant.append(coeff, 0, coeff.length); | |
| 3757 | + for (int i = 0; i < -scale; i++) | |
| 3758 | + mant.append('0'); | |
| 3759 | + this.scale = 0; | |
| 3760 | + } | |
| 3761 | + } | |
| 3762 | + } else { | |
| 3763 | + // x.xxx form | |
| 3764 | + mant.append(coeff[0]); | |
| 3765 | + if (coeff.length > 1) { | |
| 3766 | + mant.append('.'); | |
| 3767 | + dot = true; | |
| 3768 | + mant.append(coeff, 1, coeff.length-1); | |
| 3769 | + } | |
| 3770 | + exp = new StringBuilder(); | |
| 3771 | + if (adjusted != 0) { | |
| 3772 | + long abs = Math.abs(adjusted); | |
| 3773 | + // require sign | |
| 3774 | + exp.append(adjusted < 0 ? '-' : '+'); | |
| 3775 | + if (abs < 10) | |
| 3776 | + exp.append('0'); | |
| 3777 | + exp.append(abs); | |
| 3778 | + } else { | |
| 3779 | + exp.append("+00"); | |
| 3780 | + } | |
| 3781 | + } | |
| 3782 | + } | |
| 3783 | + } | |
| 3784 | + | |
| 3785 | + private int adjustWidth(int width, Flags f, boolean neg) { | |
| 3786 | + int newW = width; | |
| 3787 | + if (newW != -1 && neg && f.contains(Flags.PARENTHESES)) | |
| 3788 | + newW--; | |
| 3789 | + return newW; | |
| 3790 | + } | |
| 3791 | + | |
| 3792 | + // Add a '.' to th mantissa if required | |
| 3793 | + private char[] addDot(char[] mant) { | |
| 3794 | + char[] tmp = mant; | |
| 3795 | + tmp = new char[mant.length + 1]; | |
| 3796 | + System.arraycopy(mant, 0, tmp, 0, mant.length); | |
| 3797 | + tmp[tmp.length - 1] = '.'; | |
| 3798 | + return tmp; | |
| 3799 | + } | |
| 3800 | + | |
| 3801 | + // Add trailing zeros in the case precision is greater than the number | |
| 3802 | + // of available digits after the decimal separator. | |
| 3803 | + private char[] trailingZeros(char[] mant, int nzeros) { | |
| 3804 | + char[] tmp = mant; | |
| 3805 | + if (nzeros > 0) { | |
| 3806 | + tmp = new char[mant.length + nzeros]; | |
| 3807 | + System.arraycopy(mant, 0, tmp, 0, mant.length); | |
| 3808 | + for (int i = mant.length; i < tmp.length; i++) | |
| 3809 | + tmp[i] = '0'; | |
| 3810 | + } | |
| 3811 | + return tmp; | |
| 3812 | + } | |
| 3813 | + | |
| 3814 | + private void print(Calendar t, char c, Locale l) throws IOException | |
| 3815 | + { | |
| 3816 | + StringBuilder sb = new StringBuilder(); | |
| 3817 | + print(sb, t, c, l); | |
| 3818 | + | |
| 3819 | + // justify based on width | |
| 3820 | + String s = justify(sb.toString()); | |
| 3821 | + if (f.contains(Flags.UPPERCASE)) | |
| 3822 | + s = s.toUpperCase(); | |
| 3823 | + | |
| 3824 | + a.append(s); | |
| 3825 | + } | |
| 3826 | + | |
| 3827 | + private Appendable print(StringBuilder sb, Calendar t, char c, | |
| 3828 | + Locale l) | |
| 3829 | + throws IOException | |
| 3830 | + { | |
| 3831 | + assert(width == -1); | |
| 3832 | + if (sb == null) | |
| 3833 | + sb = new StringBuilder(); | |
| 3834 | + switch (c) { | |
| 3835 | + case DateTime.HOUR_OF_DAY_0: // 'H' (00 - 23) | |
| 3836 | + case DateTime.HOUR_0: // 'I' (01 - 12) | |
| 3837 | + case DateTime.HOUR_OF_DAY: // 'k' (0 - 23) -- like H | |
| 3838 | + case DateTime.HOUR: { // 'l' (1 - 12) -- like I | |
| 3839 | + int i = t.get(Calendar.HOUR_OF_DAY); | |
| 3840 | + if (c == DateTime.HOUR_0 || c == DateTime.HOUR) | |
| 3841 | + i = (i == 0 || i == 12 ? 12 : i % 12); | |
| 3842 | + Flags flags = (c == DateTime.HOUR_OF_DAY_0 | |
| 3843 | + || c == DateTime.HOUR_0 | |
| 3844 | + ? Flags.ZERO_PAD | |
| 3845 | + : Flags.NONE); | |
| 3846 | + sb.append(localizedMagnitude(null, i, flags, 2, l)); | |
| 3847 | + break; | |
| 3848 | + } | |
| 3849 | + case DateTime.MINUTE: { // 'M' (00 - 59) | |
| 3850 | + int i = t.get(Calendar.MINUTE); | |
| 3851 | + Flags flags = Flags.ZERO_PAD; | |
| 3852 | + sb.append(localizedMagnitude(null, i, flags, 2, l)); | |
| 3853 | + break; | |
| 3854 | + } | |
| 3855 | + case DateTime.NANOSECOND: { // 'N' (000000000 - 999999999) | |
| 3856 | + int i = t.get(Calendar.MILLISECOND) * 1000000; | |
| 3857 | + Flags flags = Flags.ZERO_PAD; | |
| 3858 | + sb.append(localizedMagnitude(null, i, flags, 9, l)); | |
| 3859 | + break; | |
| 3860 | + } | |
| 3861 | + case DateTime.MILLISECOND: { // 'L' (000 - 999) | |
| 3862 | + int i = t.get(Calendar.MILLISECOND); | |
| 3863 | + Flags flags = Flags.ZERO_PAD; | |
| 3864 | + sb.append(localizedMagnitude(null, i, flags, 3, l)); | |
| 3865 | + break; | |
| 3866 | + } | |
| 3867 | + case DateTime.MILLISECOND_SINCE_EPOCH: { // 'Q' (0 - 99...?) | |
| 3868 | + long i = t.getTimeInMillis(); | |
| 3869 | + Flags flags = Flags.NONE; | |
| 3870 | + sb.append(localizedMagnitude(null, i, flags, width, l)); | |
| 3871 | + break; | |
| 3872 | + } | |
| 3873 | + case DateTime.AM_PM: { // 'p' (am or pm) | |
| 3874 | + // Calendar.AM = 0, Calendar.PM = 1, LocaleElements defines upper | |
| 3875 | + String[] ampm = { "AM", "PM" }; | |
| 3876 | + if (l != null && l != Locale.US) { | |
| 3877 | + DateFormatSymbols dfs = DateFormatSymbols.getInstance(l); | |
| 3878 | + ampm = dfs.getAmPmStrings(); | |
| 3879 | + } | |
| 3880 | + String s = ampm[t.get(Calendar.AM_PM)]; | |
| 3881 | + sb.append(s.toLowerCase(l != null ? l : Locale.US)); | |
| 3882 | + break; | |
| 3883 | + } | |
| 3884 | + case DateTime.SECONDS_SINCE_EPOCH: { // 's' (0 - 99...?) | |
| 3885 | + long i = t.getTimeInMillis() / 1000; | |
| 3886 | + Flags flags = Flags.NONE; | |
| 3887 | + sb.append(localizedMagnitude(null, i, flags, width, l)); | |
| 3888 | + break; | |
| 3889 | + } | |
| 3890 | + case DateTime.SECOND: { // 'S' (00 - 60 - leap second) | |
| 3891 | + int i = t.get(Calendar.SECOND); | |
| 3892 | + Flags flags = Flags.ZERO_PAD; | |
| 3893 | + sb.append(localizedMagnitude(null, i, flags, 2, l)); | |
| 3894 | + break; | |
| 3895 | + } | |
| 3896 | + case DateTime.ZONE_NUMERIC: { // 'z' ({-|+}####) - ls minus? | |
| 3897 | + int i = t.get(Calendar.ZONE_OFFSET) + t.get(Calendar.DST_OFFSET); | |
| 3898 | + boolean neg = i < 0; | |
| 3899 | + sb.append(neg ? '-' : '+'); | |
| 3900 | + if (neg) | |
| 3901 | + i = -i; | |
| 3902 | + int min = i / 60000; | |
| 3903 | + // combine minute and hour into a single integer | |
| 3904 | + int offset = (min / 60) * 100 + (min % 60); | |
| 3905 | + Flags flags = Flags.ZERO_PAD; | |
| 3906 | + | |
| 3907 | + sb.append(localizedMagnitude(null, offset, flags, 4, l)); | |
| 3908 | + break; | |
| 3909 | + } | |
| 3910 | + case DateTime.ZONE: { // 'Z' (symbol) | |
| 3911 | + TimeZone tz = t.getTimeZone(); | |
| 3912 | + sb.append(tz.getDisplayName((t.get(Calendar.DST_OFFSET) != 0), | |
| 3913 | + TimeZone.SHORT, | |
| 3914 | + (l == null) ? Locale.US : l)); | |
| 3915 | + break; | |
| 3916 | + } | |
| 3917 | + | |
| 3918 | + // Date | |
| 3919 | + case DateTime.NAME_OF_DAY_ABBREV: // 'a' | |
| 3920 | + case DateTime.NAME_OF_DAY: { // 'A' | |
| 3921 | + int i = t.get(Calendar.DAY_OF_WEEK); | |
| 3922 | + Locale lt = ((l == null) ? Locale.US : l); | |
| 3923 | + DateFormatSymbols dfs = DateFormatSymbols.getInstance(lt); | |
| 3924 | + if (c == DateTime.NAME_OF_DAY) | |
| 3925 | + sb.append(dfs.getWeekdays()[i]); | |
| 3926 | + else | |
| 3927 | + sb.append(dfs.getShortWeekdays()[i]); | |
| 3928 | + break; | |
| 3929 | + } | |
| 3930 | + case DateTime.NAME_OF_MONTH_ABBREV: // 'b' | |
| 3931 | + case DateTime.NAME_OF_MONTH_ABBREV_X: // 'h' -- same b | |
| 3932 | + case DateTime.NAME_OF_MONTH: { // 'B' | |
| 3933 | + int i = t.get(Calendar.MONTH); | |
| 3934 | + Locale lt = ((l == null) ? Locale.US : l); | |
| 3935 | + DateFormatSymbols dfs = DateFormatSymbols.getInstance(lt); | |
| 3936 | + if (c == DateTime.NAME_OF_MONTH) | |
| 3937 | + sb.append(dfs.getMonths()[i]); | |
| 3938 | + else | |
| 3939 | + sb.append(dfs.getShortMonths()[i]); | |
| 3940 | + break; | |
| 3941 | + } | |
| 3942 | + case DateTime.CENTURY: // 'C' (00 - 99) | |
| 3943 | + case DateTime.YEAR_2: // 'y' (00 - 99) | |
| 3944 | + case DateTime.YEAR_4: { // 'Y' (0000 - 9999) | |
| 3945 | + int i = t.get(Calendar.YEAR); | |
| 3946 | + int size = 2; | |
| 3947 | + switch (c) { | |
| 3948 | + case DateTime.CENTURY: | |
| 3949 | + i /= 100; | |
| 3950 | + break; | |
| 3951 | + case DateTime.YEAR_2: | |
| 3952 | + i %= 100; | |
| 3953 | + break; | |
| 3954 | + case DateTime.YEAR_4: | |
| 3955 | + size = 4; | |
| 3956 | + break; | |
| 3957 | + } | |
| 3958 | + Flags flags = Flags.ZERO_PAD; | |
| 3959 | + sb.append(localizedMagnitude(null, i, flags, size, l)); | |
| 3960 | + break; | |
| 3961 | + } | |
| 3962 | + case DateTime.DAY_OF_MONTH_0: // 'd' (01 - 31) | |
| 3963 | + case DateTime.DAY_OF_MONTH: { // 'e' (1 - 31) -- like d | |
| 3964 | + int i = t.get(Calendar.DATE); | |
| 3965 | + Flags flags = (c == DateTime.DAY_OF_MONTH_0 | |
| 3966 | + ? Flags.ZERO_PAD | |
| 3967 | + : Flags.NONE); | |
| 3968 | + sb.append(localizedMagnitude(null, i, flags, 2, l)); | |
| 3969 | + break; | |
| 3970 | + } | |
| 3971 | + case DateTime.DAY_OF_YEAR: { // 'j' (001 - 366) | |
| 3972 | + int i = t.get(Calendar.DAY_OF_YEAR); | |
| 3973 | + Flags flags = Flags.ZERO_PAD; | |
| 3974 | + sb.append(localizedMagnitude(null, i, flags, 3, l)); | |
| 3975 | + break; | |
| 3976 | + } | |
| 3977 | + case DateTime.MONTH: { // 'm' (01 - 12) | |
| 3978 | + int i = t.get(Calendar.MONTH) + 1; | |
| 3979 | + Flags flags = Flags.ZERO_PAD; | |
| 3980 | + sb.append(localizedMagnitude(null, i, flags, 2, l)); | |
| 3981 | + break; | |
| 3982 | + } | |
| 3983 | + | |
| 3984 | + // Composites | |
| 3985 | + case DateTime.TIME: // 'T' (24 hour hh:mm:ss - %tH:%tM:%tS) | |
| 3986 | + case DateTime.TIME_24_HOUR: { // 'R' (hh:mm same as %H:%M) | |
| 3987 | + char sep = ':'; | |
| 3988 | + print(sb, t, DateTime.HOUR_OF_DAY_0, l).append(sep); | |
| 3989 | + print(sb, t, DateTime.MINUTE, l); | |
| 3990 | + if (c == DateTime.TIME) { | |
| 3991 | + sb.append(sep); | |
| 3992 | + print(sb, t, DateTime.SECOND, l); | |
| 3993 | + } | |
| 3994 | + break; | |
| 3995 | + } | |
| 3996 | + case DateTime.TIME_12_HOUR: { // 'r' (hh:mm:ss [AP]M) | |
| 3997 | + char sep = ':'; | |
| 3998 | + print(sb, t, DateTime.HOUR_0, l).append(sep); | |
| 3999 | + print(sb, t, DateTime.MINUTE, l).append(sep); | |
| 4000 | + print(sb, t, DateTime.SECOND, l).append(' '); | |
| 4001 | + // this may be in wrong place for some locales | |
| 4002 | + StringBuilder tsb = new StringBuilder(); | |
| 4003 | + print(tsb, t, DateTime.AM_PM, l); | |
| 4004 | + sb.append(tsb.toString().toUpperCase(l != null ? l : Locale.US)); | |
| 4005 | + break; | |
| 4006 | + } | |
| 4007 | + case DateTime.DATE_TIME: { // 'c' (Sat Nov 04 12:02:33 EST 1999) | |
| 4008 | + char sep = ' '; | |
| 4009 | + print(sb, t, DateTime.NAME_OF_DAY_ABBREV, l).append(sep); | |
| 4010 | + print(sb, t, DateTime.NAME_OF_MONTH_ABBREV, l).append(sep); | |
| 4011 | + print(sb, t, DateTime.DAY_OF_MONTH_0, l).append(sep); | |
| 4012 | + print(sb, t, DateTime.TIME, l).append(sep); | |
| 4013 | + print(sb, t, DateTime.ZONE, l).append(sep); | |
| 4014 | + print(sb, t, DateTime.YEAR_4, l); | |
| 4015 | + break; | |
| 4016 | + } | |
| 4017 | + case DateTime.DATE: { // 'D' (mm/dd/yy) | |
| 4018 | + char sep = '/'; | |
| 4019 | + print(sb, t, DateTime.MONTH, l).append(sep); | |
| 4020 | + print(sb, t, DateTime.DAY_OF_MONTH_0, l).append(sep); | |
| 4021 | + print(sb, t, DateTime.YEAR_2, l); | |
| 4022 | + break; | |
| 4023 | + } | |
| 4024 | + case DateTime.ISO_STANDARD_DATE: { // 'F' (%Y-%m-%d) | |
| 4025 | + char sep = '-'; | |
| 4026 | + print(sb, t, DateTime.YEAR_4, l).append(sep); | |
| 4027 | + print(sb, t, DateTime.MONTH, l).append(sep); | |
| 4028 | + print(sb, t, DateTime.DAY_OF_MONTH_0, l); | |
| 4029 | + break; | |
| 4030 | + } | |
| 4031 | + default: | |
| 4032 | + assert false; | |
| 4033 | + } | |
| 4034 | + return sb; | |
| 4035 | + } | |
| 4036 | + | |
| 4037 | + // -- Methods to support throwing exceptions -- | |
| 4038 | + | |
| 4039 | + private void failMismatch(Flags f, char c) { | |
| 4040 | + String fs = f.toString(); | |
| 4041 | + throw new FormatFlagsConversionMismatchException(fs, c); | |
| 4042 | + } | |
| 4043 | + | |
| 4044 | + private void failConversion(char c, Object arg) { | |
| 4045 | + throw new IllegalFormatConversionException(c, arg.getClass()); | |
| 4046 | + } | |
| 4047 | + | |
| 4048 | + private char getZero(Locale l) { | |
| 4049 | + if ((l != null) && !l.equals(locale())) { | |
| 4050 | + DecimalFormatSymbols dfs = DecimalFormatSymbols.getInstance(l); | |
| 4051 | + return dfs.getZeroDigit(); | |
| 4052 | + } | |
| 4053 | + return zero; | |
| 4054 | + } | |
| 4055 | + | |
| 4056 | + private StringBuilder | |
| 4057 | + localizedMagnitude(StringBuilder sb, long value, Flags f, | |
| 4058 | + int width, Locale l) | |
| 4059 | + { | |
| 4060 | + char[] va = Long.toString(value, 10).toCharArray(); | |
| 4061 | + return localizedMagnitude(sb, va, f, width, l); | |
| 4062 | + } | |
| 4063 | + | |
| 4064 | + private StringBuilder | |
| 4065 | + localizedMagnitude(StringBuilder sb, char[] value, Flags f, | |
| 4066 | + int width, Locale l) | |
| 4067 | + { | |
| 4068 | + if (sb == null) | |
| 4069 | + sb = new StringBuilder(); | |
| 4070 | + int begin = sb.length(); | |
| 4071 | + | |
| 4072 | + char zero = getZero(l); | |
| 4073 | + | |
| 4074 | + // determine localized grouping separator and size | |
| 4075 | + char grpSep = '\0'; | |
| 4076 | + int grpSize = -1; | |
| 4077 | + char decSep = '\0'; | |
| 4078 | + | |
| 4079 | + int len = value.length; | |
| 4080 | + int dot = len; | |
| 4081 | + for (int j = 0; j < len; j++) { | |
| 4082 | + if (value[j] == '.') { | |
| 4083 | + dot = j; | |
| 4084 | + break; | |
| 4085 | + } | |
| 4086 | + } | |
| 4087 | + | |
| 4088 | + if (dot < len) { | |
| 4089 | + if (l == null || l.equals(Locale.US)) { | |
| 4090 | + decSep = '.'; | |
| 4091 | + } else { | |
| 4092 | + DecimalFormatSymbols dfs = DecimalFormatSymbols.getInstance(l); | |
| 4093 | + decSep = dfs.getDecimalSeparator(); | |
| 4094 | + } | |
| 4095 | + } | |
| 4096 | + | |
| 4097 | + if (f.contains(Flags.GROUP)) { | |
| 4098 | + if (l == null || l.equals(Locale.US)) { | |
| 4099 | + grpSep = ','; | |
| 4100 | + grpSize = 3; | |
| 4101 | + } else { | |
| 4102 | + DecimalFormatSymbols dfs = DecimalFormatSymbols.getInstance(l); | |
| 4103 | + grpSep = dfs.getGroupingSeparator(); | |
| 4104 | + DecimalFormat df = (DecimalFormat) NumberFormat.getIntegerInstance(l); | |
| 4105 | + grpSize = df.getGroupingSize(); | |
| 4106 | + } | |
| 4107 | + } | |
| 4108 | + | |
| 4109 | + // localize the digits inserting group separators as necessary | |
| 4110 | + for (int j = 0; j < len; j++) { | |
| 4111 | + if (j == dot) { | |
| 4112 | + sb.append(decSep); | |
| 4113 | + // no more group separators after the decimal separator | |
| 4114 | + grpSep = '\0'; | |
| 4115 | + continue; | |
| 4116 | + } | |
| 4117 | + | |
| 4118 | + char c = value[j]; | |
| 4119 | + sb.append((char) ((c - '0') + zero)); | |
| 4120 | + if (grpSep != '\0' && j != dot - 1 && ((dot - j) % grpSize == 1)) | |
| 4121 | + sb.append(grpSep); | |
| 4122 | + } | |
| 4123 | + | |
| 4124 | + // apply zero padding | |
| 4125 | + len = sb.length(); | |
| 4126 | + if (width != -1 && f.contains(Flags.ZERO_PAD)) | |
| 4127 | + for (int k = 0; k < width - len; k++) | |
| 4128 | + sb.insert(begin, zero); | |
| 4129 | + | |
| 4130 | + return sb; | |
| 4131 | + } | |
| 4132 | + } | |
| 4133 | + | |
| 4134 | + private static class Flags { | |
| 4135 | + private int flags; | |
| 4136 | + | |
| 4137 | + static final Flags NONE = new Flags(0); // '' | |
| 4138 | + | |
| 4139 | + // duplicate declarations from Formattable.java | |
| 4140 | + static final Flags LEFT_JUSTIFY = new Flags(1<<0); // '-' | |
| 4141 | + static final Flags UPPERCASE = new Flags(1<<1); // '^' | |
| 4142 | + static final Flags ALTERNATE = new Flags(1<<2); // '#' | |
| 4143 | + | |
| 4144 | + // numerics | |
| 4145 | + static final Flags PLUS = new Flags(1<<3); // '+' | |
| 4146 | + static final Flags LEADING_SPACE = new Flags(1<<4); // ' ' | |
| 4147 | + static final Flags ZERO_PAD = new Flags(1<<5); // '0' | |
| 4148 | + static final Flags GROUP = new Flags(1<<6); // ',' | |
| 4149 | + static final Flags PARENTHESES = new Flags(1<<7); // '(' | |
| 4150 | + | |
| 4151 | + // indexing | |
| 4152 | + static final Flags PREVIOUS = new Flags(1<<8); // '<' | |
| 4153 | + | |
| 4154 | + private Flags(int f) { | |
| 4155 | + flags = f; | |
| 4156 | + } | |
| 4157 | + | |
| 4158 | + public int valueOf() { | |
| 4159 | + return flags; | |
| 4160 | + } | |
| 4161 | + | |
| 4162 | + public boolean contains(Flags f) { | |
| 4163 | + return (flags & f.valueOf()) == f.valueOf(); | |
| 4164 | + } | |
| 4165 | + | |
| 4166 | + public Flags dup() { | |
| 4167 | + return new Flags(flags); | |
| 4168 | + } | |
| 4169 | + | |
| 4170 | + private Flags add(Flags f) { | |
| 4171 | + flags |= f.valueOf(); | |
| 4172 | + return this; | |
| 4173 | + } | |
| 4174 | + | |
| 4175 | + public Flags remove(Flags f) { | |
| 4176 | + flags &= ~f.valueOf(); | |
| 4177 | + return this; | |
| 4178 | + } | |
| 4179 | + | |
| 4180 | + public static Flags parse(String s) { | |
| 4181 | + char[] ca = s.toCharArray(); | |
| 4182 | + Flags f = new Flags(0); | |
| 4183 | + for (int i = 0; i < ca.length; i++) { | |
| 4184 | + Flags v = parse(ca[i]); | |
| 4185 | + if (f.contains(v)) | |
| 4186 | + throw new DuplicateFormatFlagsException(v.toString()); | |
| 4187 | + f.add(v); | |
| 4188 | + } | |
| 4189 | + return f; | |
| 4190 | + } | |
| 4191 | + | |
| 4192 | + // parse those flags which may be provided by users | |
| 4193 | + private static Flags parse(char c) { | |
| 4194 | + switch (c) { | |
| 4195 | + case '-': return LEFT_JUSTIFY; | |
| 4196 | + case '#': return ALTERNATE; | |
| 4197 | + case '+': return PLUS; | |
| 4198 | + case ' ': return LEADING_SPACE; | |
| 4199 | + case '0': return ZERO_PAD; | |
| 4200 | + case ',': return GROUP; | |
| 4201 | + case '(': return PARENTHESES; | |
| 4202 | + case '<': return PREVIOUS; | |
| 4203 | + default: | |
| 4204 | + throw new UnknownFormatFlagsException(String.valueOf(c)); | |
| 4205 | + } | |
| 4206 | + } | |
| 4207 | + | |
| 4208 | + // Returns a string representation of the current {@code Flags}. | |
| 4209 | + public static String toString(Flags f) { | |
| 4210 | + return f.toString(); | |
| 4211 | + } | |
| 4212 | + | |
| 4213 | + public String toString() { | |
| 4214 | + StringBuilder sb = new StringBuilder(); | |
| 4215 | + if (contains(LEFT_JUSTIFY)) sb.append('-'); | |
| 4216 | + if (contains(UPPERCASE)) sb.append('^'); | |
| 4217 | + if (contains(ALTERNATE)) sb.append('#'); | |
| 4218 | + if (contains(PLUS)) sb.append('+'); | |
| 4219 | + if (contains(LEADING_SPACE)) sb.append(' '); | |
| 4220 | + if (contains(ZERO_PAD)) sb.append('0'); | |
| 4221 | + if (contains(GROUP)) sb.append(','); | |
| 4222 | + if (contains(PARENTHESES)) sb.append('('); | |
| 4223 | + if (contains(PREVIOUS)) sb.append('<'); | |
| 4224 | + return sb.toString(); | |
| 4225 | + } | |
| 4226 | + } | |
| 4227 | + | |
| 4228 | + private static class Conversion { | |
| 4229 | + // Byte, Short, Integer, Long, BigInteger | |
| 4230 | + // (and associated primitives due to autoboxing) | |
| 4231 | + static final char DECIMAL_INTEGER = 'd'; | |
| 4232 | + static final char OCTAL_INTEGER = 'o'; | |
| 4233 | + static final char HEXADECIMAL_INTEGER = 'x'; | |
| 4234 | + static final char HEXADECIMAL_INTEGER_UPPER = 'X'; | |
| 4235 | + | |
| 4236 | + // Float, Double, BigDecimal | |
| 4237 | + // (and associated primitives due to autoboxing) | |
| 4238 | + static final char SCIENTIFIC = 'e'; | |
| 4239 | + static final char SCIENTIFIC_UPPER = 'E'; | |
| 4240 | + static final char GENERAL = 'g'; | |
| 4241 | + static final char GENERAL_UPPER = 'G'; | |
| 4242 | + static final char DECIMAL_FLOAT = 'f'; | |
| 4243 | + static final char HEXADECIMAL_FLOAT = 'a'; | |
| 4244 | + static final char HEXADECIMAL_FLOAT_UPPER = 'A'; | |
| 4245 | + | |
| 4246 | + // Character, Byte, Short, Integer | |
| 4247 | + // (and associated primitives due to autoboxing) | |
| 4248 | + static final char CHARACTER = 'c'; | |
| 4249 | + static final char CHARACTER_UPPER = 'C'; | |
| 4250 | + | |
| 4251 | + // java.util.Date, java.util.Calendar, long | |
| 4252 | + static final char DATE_TIME = 't'; | |
| 4253 | + static final char DATE_TIME_UPPER = 'T'; | |
| 4254 | + | |
| 4255 | + // if (arg.TYPE != boolean) return boolean | |
| 4256 | + // if (arg != null) return true; else return false; | |
| 4257 | + static final char BOOLEAN = 'b'; | |
| 4258 | + static final char BOOLEAN_UPPER = 'B'; | |
| 4259 | + // if (arg instanceof Formattable) arg.formatTo() | |
| 4260 | + // else arg.toString(); | |
| 4261 | + static final char STRING = 's'; | |
| 4262 | + static final char STRING_UPPER = 'S'; | |
| 4263 | + // arg.hashCode() | |
| 4264 | + static final char HASHCODE = 'h'; | |
| 4265 | + static final char HASHCODE_UPPER = 'H'; | |
| 4266 | + | |
| 4267 | + static final char LINE_SEPARATOR = 'n'; | |
| 4268 | + static final char PERCENT_SIGN = '%'; | |
| 4269 | + | |
| 4270 | + static boolean isValid(char c) { | |
| 4271 | + return (isGeneral(c) || isInteger(c) || isFloat(c) || isText(c) | |
| 4272 | + || c == 't' || isCharacter(c)); | |
| 4273 | + } | |
| 4274 | + | |
| 4275 | + // Returns true iff the Conversion is applicable to all objects. | |
| 4276 | + static boolean isGeneral(char c) { | |
| 4277 | + switch (c) { | |
| 4278 | + case BOOLEAN: | |
| 4279 | + case BOOLEAN_UPPER: | |
| 4280 | + case STRING: | |
| 4281 | + case STRING_UPPER: | |
| 4282 | + case HASHCODE: | |
| 4283 | + case HASHCODE_UPPER: | |
| 4284 | + return true; | |
| 4285 | + default: | |
| 4286 | + return false; | |
| 4287 | + } | |
| 4288 | + } | |
| 4289 | + | |
| 4290 | + // Returns true iff the Conversion is applicable to character. | |
| 4291 | + static boolean isCharacter(char c) { | |
| 4292 | + switch (c) { | |
| 4293 | + case CHARACTER: | |
| 4294 | + case CHARACTER_UPPER: | |
| 4295 | + return true; | |
| 4296 | + default: | |
| 4297 | + return false; | |
| 4298 | + } | |
| 4299 | + } | |
| 4300 | + | |
| 4301 | + // Returns true iff the Conversion is an integer type. | |
| 4302 | + static boolean isInteger(char c) { | |
| 4303 | + switch (c) { | |
| 4304 | + case DECIMAL_INTEGER: | |
| 4305 | + case OCTAL_INTEGER: | |
| 4306 | + case HEXADECIMAL_INTEGER: | |
| 4307 | + case HEXADECIMAL_INTEGER_UPPER: | |
| 4308 | + return true; | |
| 4309 | + default: | |
| 4310 | + return false; | |
| 4311 | + } | |
| 4312 | + } | |
| 4313 | + | |
| 4314 | + // Returns true iff the Conversion is a floating-point type. | |
| 4315 | + static boolean isFloat(char c) { | |
| 4316 | + switch (c) { | |
| 4317 | + case SCIENTIFIC: | |
| 4318 | + case SCIENTIFIC_UPPER: | |
| 4319 | + case GENERAL: | |
| 4320 | + case GENERAL_UPPER: | |
| 4321 | + case DECIMAL_FLOAT: | |
| 4322 | + case HEXADECIMAL_FLOAT: | |
| 4323 | + case HEXADECIMAL_FLOAT_UPPER: | |
| 4324 | + return true; | |
| 4325 | + default: | |
| 4326 | + return false; | |
| 4327 | + } | |
| 4328 | + } | |
| 4329 | + | |
| 4330 | + // Returns true iff the Conversion does not require an argument | |
| 4331 | + static boolean isText(char c) { | |
| 4332 | + switch (c) { | |
| 4333 | + case LINE_SEPARATOR: | |
| 4334 | + case PERCENT_SIGN: | |
| 4335 | + return true; | |
| 4336 | + default: | |
| 4337 | + return false; | |
| 4338 | + } | |
| 4339 | + } | |
| 4340 | + } | |
| 4341 | + | |
| 4342 | + private static class DateTime { | |
| 4343 | + static final char HOUR_OF_DAY_0 = 'H'; // (00 - 23) | |
| 4344 | + static final char HOUR_0 = 'I'; // (01 - 12) | |
| 4345 | + static final char HOUR_OF_DAY = 'k'; // (0 - 23) -- like H | |
| 4346 | + static final char HOUR = 'l'; // (1 - 12) -- like I | |
| 4347 | + static final char MINUTE = 'M'; // (00 - 59) | |
| 4348 | + static final char NANOSECOND = 'N'; // (000000000 - 999999999) | |
| 4349 | + static final char MILLISECOND = 'L'; // jdk, not in gnu (000 - 999) | |
| 4350 | + static final char MILLISECOND_SINCE_EPOCH = 'Q'; // (0 - 99...?) | |
| 4351 | + static final char AM_PM = 'p'; // (am or pm) | |
| 4352 | + static final char SECONDS_SINCE_EPOCH = 's'; // (0 - 99...?) | |
| 4353 | + static final char SECOND = 'S'; // (00 - 60 - leap second) | |
| 4354 | + static final char TIME = 'T'; // (24 hour hh:mm:ss) | |
| 4355 | + static final char ZONE_NUMERIC = 'z'; // (-1200 - +1200) - ls minus? | |
| 4356 | + static final char ZONE = 'Z'; // (symbol) | |
| 4357 | + | |
| 4358 | + // Date | |
| 4359 | + static final char NAME_OF_DAY_ABBREV = 'a'; // 'a' | |
| 4360 | + static final char NAME_OF_DAY = 'A'; // 'A' | |
| 4361 | + static final char NAME_OF_MONTH_ABBREV = 'b'; // 'b' | |
| 4362 | + static final char NAME_OF_MONTH = 'B'; // 'B' | |
| 4363 | + static final char CENTURY = 'C'; // (00 - 99) | |
| 4364 | + static final char DAY_OF_MONTH_0 = 'd'; // (01 - 31) | |
| 4365 | + static final char DAY_OF_MONTH = 'e'; // (1 - 31) -- like d | |
| 4366 | +// * static final char ISO_WEEK_OF_YEAR_2 = 'g'; // cross %y %V | |
| 4367 | +// * static final char ISO_WEEK_OF_YEAR_4 = 'G'; // cross %Y %V | |
| 4368 | + static final char NAME_OF_MONTH_ABBREV_X = 'h'; // -- same b | |
| 4369 | + static final char DAY_OF_YEAR = 'j'; // (001 - 366) | |
| 4370 | + static final char MONTH = 'm'; // (01 - 12) | |
| 4371 | +// * static final char DAY_OF_WEEK_1 = 'u'; // (1 - 7) Monday | |
| 4372 | +// * static final char WEEK_OF_YEAR_SUNDAY = 'U'; // (0 - 53) Sunday+ | |
| 4373 | +// * static final char WEEK_OF_YEAR_MONDAY_01 = 'V'; // (01 - 53) Monday+ | |
| 4374 | +// * static final char DAY_OF_WEEK_0 = 'w'; // (0 - 6) Sunday | |
| 4375 | +// * static final char WEEK_OF_YEAR_MONDAY = 'W'; // (00 - 53) Monday | |
| 4376 | + static final char YEAR_2 = 'y'; // (00 - 99) | |
| 4377 | + static final char YEAR_4 = 'Y'; // (0000 - 9999) | |
| 4378 | + | |
| 4379 | + // Composites | |
| 4380 | + static final char TIME_12_HOUR = 'r'; // (hh:mm:ss [AP]M) | |
| 4381 | + static final char TIME_24_HOUR = 'R'; // (hh:mm same as %H:%M) | |
| 4382 | +// * static final char LOCALE_TIME = 'X'; // (%H:%M:%S) - parse format? | |
| 4383 | + static final char DATE_TIME = 'c'; | |
| 4384 | + // (Sat Nov 04 12:02:33 EST 1999) | |
| 4385 | + static final char DATE = 'D'; // (mm/dd/yy) | |
| 4386 | + static final char ISO_STANDARD_DATE = 'F'; // (%Y-%m-%d) | |
| 4387 | +// * static final char LOCALE_DATE = 'x'; // (mm/dd/yy) | |
| 4388 | + | |
| 4389 | + static boolean isValid(char c) { | |
| 4390 | + switch (c) { | |
| 4391 | + case HOUR_OF_DAY_0: | |
| 4392 | + case HOUR_0: | |
| 4393 | + case HOUR_OF_DAY: | |
| 4394 | + case HOUR: | |
| 4395 | + case MINUTE: | |
| 4396 | + case NANOSECOND: | |
| 4397 | + case MILLISECOND: | |
| 4398 | + case MILLISECOND_SINCE_EPOCH: | |
| 4399 | + case AM_PM: | |
| 4400 | + case SECONDS_SINCE_EPOCH: | |
| 4401 | + case SECOND: | |
| 4402 | + case TIME: | |
| 4403 | + case ZONE_NUMERIC: | |
| 4404 | + case ZONE: | |
| 4405 | + | |
| 4406 | + // Date | |
| 4407 | + case NAME_OF_DAY_ABBREV: | |
| 4408 | + case NAME_OF_DAY: | |
| 4409 | + case NAME_OF_MONTH_ABBREV: | |
| 4410 | + case NAME_OF_MONTH: | |
| 4411 | + case CENTURY: | |
| 4412 | + case DAY_OF_MONTH_0: | |
| 4413 | + case DAY_OF_MONTH: | |
| 4414 | +// * case ISO_WEEK_OF_YEAR_2: | |
| 4415 | +// * case ISO_WEEK_OF_YEAR_4: | |
| 4416 | + case NAME_OF_MONTH_ABBREV_X: | |
| 4417 | + case DAY_OF_YEAR: | |
| 4418 | + case MONTH: | |
| 4419 | +// * case DAY_OF_WEEK_1: | |
| 4420 | +// * case WEEK_OF_YEAR_SUNDAY: | |
| 4421 | +// * case WEEK_OF_YEAR_MONDAY_01: | |
| 4422 | +// * case DAY_OF_WEEK_0: | |
| 4423 | +// * case WEEK_OF_YEAR_MONDAY: | |
| 4424 | + case YEAR_2: | |
| 4425 | + case YEAR_4: | |
| 4426 | + | |
| 4427 | + // Composites | |
| 4428 | + case TIME_12_HOUR: | |
| 4429 | + case TIME_24_HOUR: | |
| 4430 | +// * case LOCALE_TIME: | |
| 4431 | + case DATE_TIME: | |
| 4432 | + case DATE: | |
| 4433 | + case ISO_STANDARD_DATE: | |
| 4434 | +// * case LOCALE_DATE: | |
| 4435 | + return true; | |
| 4436 | + default: | |
| 4437 | + return false; | |
| 4438 | + } | |
| 4439 | + } | |
| 4440 | + } | |
| 4441 | +} | |