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1 /*******************************************************************************
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2 * Copyright (c) 2000, 2004 IBM Corporation and others.
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3 * All rights reserved. This program and the accompanying materials
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4 * are made available under the terms of the Eclipse Public License v1.0
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5 * which accompanies this distribution, and is available at
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6 * http://www.eclipse.org/legal/epl-v10.html
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7 *
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8 * Contributors:
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9 * IBM Corporation - initial API and implementation
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10 * Port to the D programming language:
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11 * Frank Benoit <benoit@tionex.de>
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12 *******************************************************************************/
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13 module org.eclipse.swt.internal.Converter;
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14
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15 import java.lang.all;
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16
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17 extern(C) {
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18 struct GError{};
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19 char* g_utf16_to_utf8 ( wchar *str,
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20 int len,
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21 int *items_read,
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22 int *items_written,
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23 GError **error);
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24 wchar* g_utf8_to_utf16 ( char *str,
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25 int len,
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26 int *items_read,
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27 int *items_written,
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28 GError **error);
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29 void g_free (void* ptr );
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30 }
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31
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32 /**
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33 * This class implements the conversions between unicode characters
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34 * and the <em>platform supported</em> representation for characters.
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35 * <p>
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36 * Note that, unicode characters which can not be found in the platform
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37 * encoding will be converted to an arbitrary platform specific character.
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38 * </p>
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39 */
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40 public final class Converter {
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41 public static const char [] NullByteArray = "\0";
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51
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42 public static const char [] EmptyByteArray;
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43 public static const wchar [] EmptyCharArray;
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25
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44
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45 /**
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46 * Returns the default code page for the platform where the
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47 * application is currently running.
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48 *
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49 * @return the default code page
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50 */
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51 public static String defaultCodePage () {
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52 return "UTF8";
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53 }
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54
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55 public static wchar [] mbcsToWcs (String codePage, char [] buffer) {
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56 int items_written;
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57 wchar* ptr = g_utf8_to_utf16 (toStringz(buffer), buffer.length, null, &items_written, null);
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58 if (!ptr){
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51
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59 return cast(wchar[])EmptyCharArray;
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25
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60 }
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61 wchar[] chars = ptr[ 0 .. items_written].dup;
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62 g_free (ptr);
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63 return chars;
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64 }
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65
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66 /+ // only difference with String vs. String arg, so no diff in org.eclipse.swt
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67 public static char [] wcsToMbcs (String codePage, String str, bool terminate) {
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68 int length = str.length ();
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69 wchar [] buffer = new wchar [length];
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70 string.getChars (0, length, buffer, 0);
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71 return wcsToMbcs (codePage, buffer, terminate);
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72 }
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73 +/
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74
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75 public static char [] wcsToMbcs (String codePage, wchar [] buffer, bool terminate) {
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76 int items_read, items_written;
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77 /*
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78 * Note that g_utf16_to_utf8() stops converting
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79 * when it finds the first NULL.
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80 */
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81 char* ptr = g_utf16_to_utf8 (toString16z(buffer), buffer.length, & items_read, & items_written, null);
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82 if (!ptr) {
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51
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83 return terminate ?cast(char[]) NullByteArray : cast(char[])EmptyByteArray;
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25
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84 }
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85 char [] bytes = new char [items_written + (terminate ? 1 : 0)];
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86 bytes[ 0 .. items_written ] = ptr[ 0 .. items_written ];
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87 if( terminate ){
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88 bytes[ items_written ] = 0;
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89 }
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90 g_free (ptr);
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91 return bytes;
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92 }
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93
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94 }
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