J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2004-2005 Sun Microsystems, Inc. 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. Sun designates this |
| 8 | * particular file as subject to the "Classpath" exception as provided |
| 9 | * by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| 22 | * CA 95054 USA or visit www.sun.com if you need additional information or |
| 23 | * have any questions. |
| 24 | */ |
| 25 | |
| 26 | #include "utf.h" |
| 27 | |
| 28 | #include <windows.h> |
| 29 | #include <stdlib.h> |
| 30 | #include <stdio.h> |
| 31 | |
| 32 | /* |
| 33 | * Initialize all utf processing. |
| 34 | */ |
| 35 | struct UtfInst * JNICALL |
| 36 | utfInitialize(char *options) |
| 37 | { |
| 38 | struct UtfInst *ui; |
| 39 | LANGID langID; |
| 40 | LCID localeID; |
| 41 | TCHAR strCodePage[7]; // ANSI code page id |
| 42 | |
| 43 | ui = (struct UtfInst*)calloc(sizeof(struct UtfInst), 1); |
| 44 | |
| 45 | /* |
| 46 | * Get the code page for this locale |
| 47 | */ |
| 48 | langID = LANGIDFROMLCID(GetUserDefaultLCID()); |
| 49 | localeID = MAKELCID(langID, SORT_DEFAULT); |
| 50 | if (GetLocaleInfo(localeID, LOCALE_IDEFAULTANSICODEPAGE, |
| 51 | strCodePage, sizeof(strCodePage)/sizeof(TCHAR)) > 0 ) { |
| 52 | ui->platformCodePage = atoi(strCodePage); |
| 53 | } else { |
| 54 | ui->platformCodePage = GetACP(); |
| 55 | } |
| 56 | return ui; |
| 57 | } |
| 58 | |
| 59 | /* |
| 60 | * Terminate all utf processing |
| 61 | */ |
| 62 | void JNICALL |
| 63 | utfTerminate(struct UtfInst *ui, char *options) |
| 64 | { |
| 65 | (void)free(ui); |
| 66 | } |
| 67 | |
| 68 | /* |
| 69 | * Get wide string (assumes len>0) |
| 70 | */ |
| 71 | static WCHAR* |
| 72 | getWideString(UINT codePage, char* str, int len, int *pwlen) |
| 73 | { |
| 74 | int wlen; |
| 75 | WCHAR* wstr; |
| 76 | |
| 77 | /* Convert the string to WIDE string */ |
| 78 | wlen = MultiByteToWideChar(codePage, 0, str, len, NULL, 0); |
| 79 | *pwlen = wlen; |
| 80 | if (wlen <= 0) { |
| 81 | UTF_ERROR(("Can't get WIDE string length")); |
| 82 | return NULL; |
| 83 | } |
| 84 | wstr = (WCHAR*)malloc(wlen * sizeof(WCHAR)); |
| 85 | if (wstr == NULL) { |
| 86 | UTF_ERROR(("Can't malloc() any space")); |
| 87 | return NULL; |
| 88 | } |
| 89 | if (MultiByteToWideChar(codePage, 0, str, len, wstr, wlen) == 0) { |
| 90 | UTF_ERROR(("Can't get WIDE string")); |
| 91 | return NULL; |
| 92 | } |
| 93 | return wstr; |
| 94 | } |
| 95 | |
| 96 | /* |
| 97 | * Convert UTF-8 to a platform string |
| 98 | */ |
| 99 | int JNICALL |
| 100 | utf8ToPlatform(struct UtfInst *ui, jbyte *utf8, int len, char* output, int outputMaxLen) |
| 101 | { |
| 102 | int wlen; |
| 103 | int plen; |
| 104 | WCHAR* wstr; |
| 105 | |
| 106 | /* Negative length is an error */ |
| 107 | if ( len < 0 ) { |
| 108 | return -1; |
| 109 | } |
| 110 | |
| 111 | /* Zero length is ok, but we don't need to do much */ |
| 112 | if ( len == 0 ) { |
| 113 | output[0] = 0; |
| 114 | return 0; |
| 115 | } |
| 116 | |
| 117 | /* Get WIDE string version (assumes len>0) */ |
| 118 | wstr = getWideString(CP_UTF8, (char*)utf8, len, &wlen); |
| 119 | if ( wstr == NULL ) { |
| 120 | return -1; |
| 121 | } |
| 122 | |
| 123 | /* Convert WIDE string to MultiByte string */ |
| 124 | plen = WideCharToMultiByte(ui->platformCodePage, 0, wstr, wlen, |
| 125 | output, outputMaxLen, NULL, NULL); |
| 126 | free(wstr); |
| 127 | if (plen <= 0) { |
| 128 | UTF_ERROR(("Can't convert WIDE string to multi-byte")); |
| 129 | return -1; |
| 130 | } |
| 131 | output[plen] = '\0'; |
| 132 | return plen; |
| 133 | } |
| 134 | |
| 135 | /* |
| 136 | * Convert Platform Encoding to UTF-8. |
| 137 | */ |
| 138 | int JNICALL |
| 139 | utf8FromPlatform(struct UtfInst *ui, char *str, int len, jbyte *output, int outputMaxLen) |
| 140 | { |
| 141 | int wlen; |
| 142 | int plen; |
| 143 | WCHAR* wstr; |
| 144 | |
| 145 | /* Negative length is an error */ |
| 146 | if ( len < 0 ) { |
| 147 | return -1; |
| 148 | } |
| 149 | |
| 150 | /* Zero length is ok, but we don't need to do much */ |
| 151 | if ( len == 0 ) { |
| 152 | output[0] = 0; |
| 153 | return 0; |
| 154 | } |
| 155 | |
| 156 | /* Get WIDE string version (assumes len>0) */ |
| 157 | wstr = getWideString(ui->platformCodePage, str, len, &wlen); |
| 158 | if ( wstr == NULL ) { |
| 159 | return -1; |
| 160 | } |
| 161 | |
| 162 | /* Convert WIDE string to UTF-8 string */ |
| 163 | plen = WideCharToMultiByte(CP_UTF8, 0, wstr, wlen, |
| 164 | (char*)output, outputMaxLen, NULL, NULL); |
| 165 | free(wstr); |
| 166 | if (plen <= 0) { |
| 167 | UTF_ERROR(("Can't convert WIDE string to multi-byte")); |
| 168 | return -1; |
| 169 | } |
| 170 | output[plen] = '\0'; |
| 171 | return plen; |
| 172 | } |