Mercurial > projects > dwt-linux
annotate dwt/internal/Compatibility.d @ 238:380bad9f6852
reverted char[] to String
| author | Frank Benoit <benoit@tionex.de> |
|---|---|
| date | Mon, 05 May 2008 00:42:55 +0200 |
| parents | 0f12f6bb9739 |
| children | ce446666f5a2 |
| rev | line source |
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1 /******************************************************************************* |
| 0 | 2 * Copyright (c) 2000, 2006 IBM Corporation and others. |
| 3 * All rights reserved. This program and the accompanying materials | |
| 4 * are made available under the terms of the Eclipse Public License v1.0 | |
| 5 * which accompanies this distribution, and is available at | |
| 6 * http://www.eclipse.org/legal/epl-v10.html | |
| 7 * | |
| 8 * Contributors: | |
| 9 * IBM Corporation - initial API and implementation | |
| 108 | 10 * Port to the D programming language: |
| 11 * Frank Benoit <benoit@tionex.de> | |
| 0 | 12 *******************************************************************************/ |
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13 module dwt.internal.Compatibility; |
| 0 | 14 |
| 238 | 15 import dwt.dwthelper.utils; |
| 16 | |
| 0 | 17 /+ |
| 18 import java.io.*; | |
| 19 import java.text.MessageFormat; | |
| 20 import java.util.MissingResourceException; | |
| 21 import java.util.ResourceBundle; | |
| 22 import java.util.zip.InflaterInputStream; | |
| 23 +/ | |
| 24 | |
| 71 | 25 import dwt.DWT; |
| 12 | 26 public import dwt.dwthelper.FileInputStream; |
| 27 public import dwt.dwthelper.FileOutputStream; | |
| 28 public import dwt.dwthelper.InflaterInputStream; | |
| 1 | 29 |
| 0 | 30 import Math = tango.math.Math; |
| 31 import Unicode = tango.text.Unicode; | |
| 32 import tango.sys.Process; | |
| 33 | |
| 34 /** | |
| 35 * This class is a placeholder for utility methods commonly | |
| 36 * used on J2SE platforms but not supported on some J2ME | |
| 37 * profiles. | |
| 38 * <p> | |
| 39 * It is part of our effort to provide support for both J2SE | |
| 40 * and J2ME platforms. | |
| 41 * </p> | |
| 42 * <p> | |
| 43 * IMPORTANT: some of the methods have been modified from their | |
| 44 * J2SE parents. Refer to the description of each method for | |
| 45 * specific changes. | |
| 46 * </p> | |
| 47 * <ul> | |
| 48 * <li>Exceptions thrown may differ since J2ME's set of | |
| 49 * exceptions is a subset of J2SE's one. | |
| 50 * </li> | |
| 51 * <li>The range of the mathematic functions is subject to | |
| 52 * change. | |
| 53 * </li> | |
| 54 * </ul> | |
| 55 */ | |
| 56 public final class Compatibility { | |
| 57 | |
| 58 /** | |
| 59 * Returns the PI constant as a double. | |
| 60 */ | |
| 61 public static const real PI = Math.PI; | |
| 62 | |
| 63 static const real toRadians = PI / 180; | |
| 64 | |
| 65 /** | |
| 66 * Answers the length of the side adjacent to the given angle | |
| 67 * of a right triangle. In other words, it returns the integer | |
| 68 * conversion of length * cos (angle). | |
| 69 * <p> | |
| 70 * IMPORTANT: the j2me version has an additional restriction on | |
| 71 * the argument. length must be between -32767 and 32767 (inclusive). | |
| 72 * </p> | |
| 73 * | |
| 74 * @param angle the angle in degrees | |
| 75 * @param length the length of the triangle's hypotenuse | |
| 76 * @return the integer conversion of length * cos (angle) | |
| 77 */ | |
| 78 public static int cos(int angle, int length) { | |
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79 return cast(int)(Math.cos(angle * toRadians) * length); |
| 0 | 80 } |
| 81 | |
| 82 /** | |
| 83 * Answers the length of the side opposite to the given angle | |
| 84 * of a right triangle. In other words, it returns the integer | |
| 85 * conversion of length * sin (angle). | |
| 86 * <p> | |
| 87 * IMPORTANT: the j2me version has an additional restriction on | |
| 88 * the argument. length must be between -32767 and 32767 (inclusive). | |
| 89 * </p> | |
| 90 * | |
| 91 * @param angle the angle in degrees | |
| 92 * @param length the length of the triangle's hypotenuse | |
| 93 * @return the integer conversion of length * sin (angle) | |
| 94 */ | |
| 95 public static int sin(int angle, int length) { | |
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96 return cast(int)(Math.sin(angle * toRadians) * length); |
| 0 | 97 } |
| 98 | |
| 99 /** | |
| 100 * Answers the most negative (i.e. closest to negative infinity) | |
| 101 * integer value which is greater than the number obtained by dividing | |
| 102 * the first argument p by the second argument q. | |
| 103 * | |
| 104 * @param p numerator | |
| 105 * @param q denominator (must be different from zero) | |
| 106 * @return the ceiling of the rational number p / q. | |
| 107 */ | |
| 108 public static int ceil(int p, int q) { | |
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109 return cast(int)Math.ceil(cast(float)p / q); |
| 0 | 110 } |
| 111 | |
| 112 /** | |
| 113 * Answers the most positive (i.e. closest to positive infinity) | |
| 114 * integer value which is less than the number obtained by dividing | |
| 115 * the first argument p by the second argument q. | |
| 116 * | |
| 117 * @param p numerator | |
| 118 * @param q denominator (must be different from zero) | |
| 119 * @return the floor of the rational number p / q. | |
| 120 */ | |
| 121 public static int floor(int p, int q) { | |
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122 return cast(int)Math.floor(cast(double)p / q); |
| 0 | 123 } |
| 124 | |
| 125 /** | |
| 126 * Answers the result of rounding to the closest integer the number obtained | |
| 127 * by dividing the first argument p by the second argument q. | |
| 128 * <p> | |
| 129 * IMPORTANT: the j2me version has an additional restriction on | |
| 130 * the arguments. p must be within the range 0 - 32767 (inclusive). | |
| 131 * q must be within the range 1 - 32767 (inclusive). | |
| 132 * </p> | |
| 133 * | |
| 134 * @param p numerator | |
| 135 * @param q denominator (must be different from zero) | |
| 136 * @return the closest integer to the rational number p / q | |
| 137 */ | |
| 138 public static int round(int p, int q) { | |
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139 return cast(int)Math.round(cast(float)p / q); |
| 0 | 140 } |
| 141 | |
| 142 /** | |
| 143 * Returns 2 raised to the power of the argument. | |
| 144 * | |
| 145 * @param n an int value between 0 and 30 (inclusive) | |
| 146 * @return 2 raised to the power of the argument | |
| 147 * | |
| 148 * @exception IllegalArgumentException <ul> | |
| 149 * <li>ERROR_INVALID_RANGE - if the argument is not between 0 and 30 (inclusive)</li> | |
| 150 * </ul> | |
| 151 */ | |
| 152 public static int pow2(int n) { | |
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153 if (n >= 1 && n <= 30) |
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154 return 2 << (n - 1); |
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155 else if (n != 0) { |
| 71 | 156 DWT.error(DWT.ERROR_INVALID_RANGE); |
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157 } |
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158 return 1; |
| 0 | 159 } |
| 4 | 160 |
| 0 | 161 /** |
| 162 * Open a file if such things are supported. | |
| 163 * | |
| 164 * @param filename the name of the file to open | |
| 165 * @return a stream on the file if it could be opened. | |
| 166 * @exception IOException | |
| 167 */ | |
| 238 | 168 public static InputStream newFileInputStream(String filename) { |
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169 return new FileInputStream(filename); |
| 0 | 170 } |
| 171 | |
| 172 /** | |
| 173 * Open a file if such things are supported. | |
| 174 * | |
| 175 * @param filename the name of the file to open | |
| 176 * @return a stream on the file if it could be opened. | |
| 177 * @exception IOException | |
| 178 */ | |
| 238 | 179 public static OutputStream newFileOutputStream(String filename) { |
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180 return new FileOutputStream(filename); |
| 0 | 181 } |
| 182 | |
| 183 /** | |
| 184 * Create an InflaterInputStream if such things are supported. | |
| 185 * | |
| 186 * @param stream the input stream | |
| 187 * @return a inflater stream or <code>null</code> | |
| 188 * @exception IOException | |
| 189 * | |
| 190 * @since 3.3 | |
| 191 */ | |
| 12 | 192 public static InflaterInputStream newInflaterInputStream(InputStream stream) { |
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193 return new InflaterInputStream(stream); |
| 0 | 194 } |
| 4 | 195 |
| 0 | 196 /** |
| 197 * Answers whether the character is a letter. | |
| 198 * | |
| 199 * @param c the character | |
| 200 * @return true when the character is a letter | |
| 201 */ | |
| 202 public static bool isLetter(dchar c) { | |
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203 return Unicode.isLetter(c); |
| 0 | 204 } |
| 205 | |
| 206 /** | |
| 207 * Answers whether the character is a letter or a digit. | |
| 208 * | |
| 209 * @param c the character | |
| 210 * @return true when the character is a letter or a digit | |
| 211 */ | |
| 212 public static bool isLetterOrDigit(dchar c) { | |
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213 return Unicode.isLetterOrDigit(c); |
| 0 | 214 } |
| 215 | |
| 216 /** | |
| 217 * Answers whether the character is a Unicode space character. | |
| 218 * | |
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219 * @param c the character |
| 0 | 220 * @return true when the character is a Unicode space character |
| 221 */ | |
| 222 public static bool isSpaceChar(dchar c) { | |
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223 return Unicode.isSpace(c); |
| 0 | 224 } |
| 225 | |
| 226 /** | |
| 227 * Answers whether the character is a whitespace character. | |
| 228 * | |
| 229 * @param c the character to test | |
| 230 * @return true if the character is whitespace | |
| 231 */ | |
| 232 public static bool isWhitespace(dchar c) { | |
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233 return Unicode.isWhitespace(c); |
| 0 | 234 } |
| 235 | |
| 236 /** | |
| 237 * Execute a program in a separate platform process if the | |
| 238 * underlying platform support this. | |
| 239 * <p> | |
| 240 * The new process inherits the environment of the caller. | |
| 241 * </p> | |
| 242 * | |
| 243 * @param prog the name of the program to execute | |
| 244 * | |
| 245 * @exception ProcessException | |
| 246 * if the program cannot be executed | |
| 247 */ | |
| 238 | 248 public static void exec(String prog) { |
| 0 | 249 auto proc = new Process( prog ); |
| 250 proc.execute; | |
| 251 } | |
| 252 | |
| 253 /** | |
| 254 * Execute progArray[0] in a separate platform process if the | |
| 255 * underlying platform support this. | |
| 256 * <p> | |
| 257 * The new process inherits the environment of the caller. | |
| 258 * <p> | |
| 259 * | |
| 260 * @param progArray array containing the program to execute and its arguments | |
| 261 * | |
| 262 * @exception ProcessException | |
| 263 * if the program cannot be executed | |
| 264 */ | |
| 238 | 265 public static void exec(String[] progArray) { |
| 0 | 266 auto proc = new Process( progArray ); |
| 267 proc.execute; | |
| 268 } | |
| 269 /++ PORTING_LEFT | |
| 270 private static ResourceBundle msgs = null; | |
| 271 | |
| 272 /** | |
| 273 * Returns the NLS'ed message for the given argument. This is only being | |
| 71 | 274 * called from DWT. |
| 0 | 275 * |
| 276 * @param key the key to look up | |
| 277 * @return the message for the given key | |
| 278 * | |
| 71 | 279 * @see DWT#getMessage(String) |
| 0 | 280 */ |
| 281 public static String getMessage(String key) { | |
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282 String answer = key; |
| 0 | 283 |
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284 if (key == null) { |
| 71 | 285 DWT.error (DWT.ERROR_NULL_ARGUMENT); |
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286 } |
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287 if (msgs == null) { |
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288 try { |
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289 msgs = ResourceBundle.getBundle("dwt.internal.SWTMessages"); //$NON-NLS-1$ |
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290 } catch (MissingResourceException ex) { |
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291 answer = key + " (no resource bundle)"; //$NON-NLS-1$ |
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292 } |
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293 } |
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294 if (msgs != null) { |
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295 try { |
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296 answer = msgs.getString(key); |
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297 } catch (MissingResourceException ex2) {} |
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298 } |
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299 return answer; |
| 0 | 300 } |
| 301 | |
| 302 public static String getMessage(String key, Object[] args) { | |
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303 String answer = key; |
| 0 | 304 |
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305 if (key == null || args == null) { |
| 71 | 306 DWT.error (DWT.ERROR_NULL_ARGUMENT); |
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307 } |
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308 if (msgs == null) { |
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309 try { |
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310 msgs = ResourceBundle.getBundle("dwt.internal.SWTMessages"); //$NON-NLS-1$ |
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311 } catch (MissingResourceException ex) { |
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312 answer = key + " (no resource bundle)"; //$NON-NLS-1$ |
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313 } |
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314 } |
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315 if (msgs != null) { |
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316 try { |
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317 MessageFormat formatter = new MessageFormat(""); |
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318 formatter.applyPattern(msgs.getString(key)); |
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319 answer = formatter.format(args); |
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320 } catch (MissingResourceException ex2) {} |
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321 } |
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322 return answer; |
| 0 | 323 } |
| 46 | 324 ++/ |
| 325 | |
| 0 | 326 |
| 327 /** | |
| 328 * Interrupt the current thread. | |
| 329 * <p> | |
| 330 * Note that this is not available on CLDC. | |
| 331 * </p> | |
| 332 */ | |
| 333 public static void interrupt() { | |
| 46 | 334 //PORTING_FIXME: how to implement?? |
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335 //Thread.currentThread().interrupt(); |
| 0 | 336 } |
| 46 | 337 |
| 0 | 338 /** |
| 339 * Compares two instances of class String ignoring the case of the | |
| 340 * characters and answers if they are equal. | |
| 341 * | |
| 342 * @param s1 string | |
| 343 * @param s2 string | |
| 344 * @return true if the two instances of class String are equal | |
| 345 */ | |
| 238 | 346 public static bool equalsIgnoreCase(String s1, String s2) { |
| 347 String s1b = new char[ s1.length ]; | |
| 348 String s2b = new char[ s1.length ]; | |
| 0 | 349 scope(exit){ |
| 350 delete s1b; | |
| 351 delete s2b; | |
| 352 } | |
| 238 | 353 String s1c = Unicode.toFold( s1, s1b ); |
| 354 String s2c = Unicode.toFold( s2, s2b ); | |
|
59
8cec8f536af3
All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed.
Frank Benoit <benoit@tionex.de>
parents:
46
diff
changeset
|
355 return s1c == s2c; |
| 0 | 356 } |
| 357 | |
| 358 } |