comparison: libpurple/protocols/qq/char_conv.c
libpurple/protocols/qq/char_conv.c
- branch
- cpw.masca.webkit
- changeset 32503
- ab886d3a38ae
- parent 32502
- e64e49502c79
- parent 31944
- 77d17906f1c3
- child 32504
- 8243b910ed4c
equal
deleted
inserted
replaced
| 32502:e64e49502c79 | 32503:ab886d3a38ae |
|---|---|
| 1 /** | |
| 2 * @file char_conv.c | |
| 3 * | |
| 4 * purple | |
| 5 * | |
| 6 * Purple is the legal property of its developers, whose names are too numerous | |
| 7 * to list here. Please refer to the COPYRIGHT file distributed with this | |
| 8 * source distribution. | |
| 9 * | |
| 10 * This program is free software; you can redistribute it and/or modify | |
| 11 * it under the terms of the GNU General Public License as published by | |
| 12 * the Free Software Foundation; either version 2 of the License, or | |
| 13 * (at your option) any later version. | |
| 14 * | |
| 15 * This program is distributed in the hope that it will be useful, | |
| 16 * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 18 * GNU General Public License for more details. | |
| 19 * | |
| 20 * You should have received a copy of the GNU General Public License | |
| 21 * along with this program; if not, write to the Free Software | |
| 22 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02111-1301 USA | |
| 23 */ | |
| 24 | |
| 25 #include "internal.h" | |
| 26 #include "debug.h" | |
| 27 | |
| 28 #include "char_conv.h" | |
| 29 #include "packet_parse.h" | |
| 30 #include "utils.h" | |
| 31 | |
| 32 #define UTF8 "UTF-8" | |
| 33 #define QQ_CHARSET_ZH_CN "GB18030" | |
| 34 #define QQ_CHARSET_ENG "ISO-8859-1" | |
| 35 | |
| 36 #define QQ_NULL_MSG "(NULL)" /* return this if conversion fails */ | |
| 37 | |
| 38 /* convert a string from from_charset to to_charset, using g_convert */ | |
| 39 /* Warning: do not return NULL */ | |
| 40 static gchar *do_convert(const gchar *str, gssize len, const gchar *to_charset, const gchar *from_charset) | |
| 41 { | |
| 42 GError *error = NULL; | |
| 43 gchar *ret; | |
| 44 gsize byte_read, byte_write; | |
| 45 | |
| 46 g_return_val_if_fail(str != NULL && to_charset != NULL && from_charset != NULL, g_strdup(QQ_NULL_MSG)); | |
| 47 | |
| 48 ret = g_convert(str, len, to_charset, from_charset, &byte_read, &byte_write, &error); | |
| 49 | |
| 50 if (error == NULL) { | |
| 51 return ret; /* convert is OK */ | |
| 52 } | |
| 53 | |
| 54 /* convert error */ | |
| 55 purple_debug_error("QQ_CONVERT", "%s\n", error->message); | |
| 56 qq_show_packet("Dump failed text", (guint8 *) str, (len == -1) ? strlen(str) : len); | |
| 57 | |
| 58 g_error_free(error); | |
| 59 return g_strdup(QQ_NULL_MSG); | |
| 60 } | |
| 61 | |
| 62 /* | |
| 63 * take the input as a pascal string and return a converted c-string in UTF-8 | |
| 64 * returns the number of bytes read, return -1 if fatal error | |
| 65 * the converted UTF-8 will be saved in ret | |
| 66 * Return: *ret != NULL | |
| 67 */ | |
| 68 gint qq_get_vstr(gchar **ret, const gchar *from_charset, guint8 *data) | |
| 69 { | |
| 70 guint8 len; | |
| 71 | |
| 72 g_return_val_if_fail(data != NULL && from_charset != NULL, -1); | |
| 73 | |
| 74 len = data[0]; | |
| 75 if (len == 0) { | |
| 76 *ret = g_strdup(""); | |
| 77 return 1; | |
| 78 } | |
| 79 *ret = do_convert((gchar *) (data + 1), (gssize) len, UTF8, from_charset); | |
| 80 | |
| 81 return len + 1; | |
| 82 } | |
| 83 | |
| 84 gint qq_put_vstr(guint8 *buf, const gchar *str_utf8, const gchar *to_charset) | |
| 85 { | |
| 86 gchar *str; | |
| 87 guint8 len; | |
| 88 | |
| 89 if (str_utf8 == NULL || (len = strlen(str_utf8)) == 0) { | |
| 90 buf[0] = 0; | |
| 91 return 1; | |
| 92 } | |
| 93 str = do_convert(str_utf8, -1, to_charset, UTF8); | |
| 94 len = strlen(str_utf8); | |
| 95 buf[0] = len; | |
| 96 if (len > 0) { | |
| 97 memcpy(buf + 1, str, len); | |
| 98 } | |
| 99 return 1 + len; | |
| 100 } | |
| 101 | |
| 102 /* Warning: do not return NULL */ | |
| 103 gchar *utf8_to_qq(const gchar *str, const gchar *to_charset) | |
| 104 { | |
| 105 return do_convert(str, -1, to_charset, UTF8); | |
| 106 } | |
| 107 | |
| 108 /* Warning: do not return NULL */ | |
| 109 gchar *qq_to_utf8(const gchar *str, const gchar *from_charset) | |
| 110 { | |
| 111 return do_convert(str, -1, UTF8, from_charset); | |
| 112 } | |
| 113 |
