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/*!A cross-platform build utility based on Lua
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* Copyright (C) 2015-present, Xmake Open Source Community.
*
* @author ruki
* @file charset.c
*
*/
/* //////////////////////////////////////////////////////////////////////////////////////
* trace
*/
#define TB_TRACE_MODULE_NAME "charset"
#define TB_TRACE_MODULE_DEBUG (0)
/* //////////////////////////////////////////////////////////////////////////////////////
* includes
*/
#include "charset.h"
/* //////////////////////////////////////////////////////////////////////////////////////
* globals
*/
// the charsets, @note: type & name is sorted
static xm_charset_entry_t g_charsets[] = {
{ TB_CHARSET_TYPE_ANSI, "ansi" },
{ TB_CHARSET_TYPE_ASCII, "ascii" },
{ TB_CHARSET_TYPE_GB2312, "gb2312" },
{ TB_CHARSET_TYPE_GBK, "gbk" },
{ TB_CHARSET_TYPE_ISO8859, "iso8859" },
{ TB_CHARSET_TYPE_UCS2 | TB_CHARSET_TYPE_NE, "ucs2" },
{ TB_CHARSET_TYPE_UCS4 | TB_CHARSET_TYPE_NE, "ucs4" },
{ TB_CHARSET_TYPE_UTF16 | TB_CHARSET_TYPE_NE, "utf16" },
{ TB_CHARSET_TYPE_UTF16 | TB_CHARSET_TYPE_BE, "utf16be" },
{ TB_CHARSET_TYPE_UTF16 | TB_CHARSET_TYPE_NE, "utf16bom" },
{ TB_CHARSET_TYPE_UTF16 | TB_CHARSET_TYPE_LE, "utf16le" },
{ TB_CHARSET_TYPE_UTF16 | TB_CHARSET_TYPE_LE, "utf16lebom" },
{ TB_CHARSET_TYPE_UTF32 | TB_CHARSET_TYPE_NE, "utf32" },
{ TB_CHARSET_TYPE_UTF32 | TB_CHARSET_TYPE_BE, "utf32be" },
{ TB_CHARSET_TYPE_UTF32 | TB_CHARSET_TYPE_LE, "utf32le" },
{ TB_CHARSET_TYPE_UTF8, "utf8" },
{ TB_CHARSET_TYPE_UTF8, "utf8bom" },
};
/* //////////////////////////////////////////////////////////////////////////////////////
* finder
*/
static tb_long_t xm_charset_comp_by_name(tb_iterator_ref_t iterator, tb_cpointer_t item, tb_cpointer_t name) {
return tb_stricmp(((xm_charset_entry_ref_t)item)->name, (tb_char_t const *)name);
}
/* //////////////////////////////////////////////////////////////////////////////////////
* implementation
*/
xm_charset_entry_ref_t xm_charset_find_by_name(tb_char_t const *name) {
// make iterator
tb_array_iterator_t array_iterator;
tb_iterator_ref_t iterator =
tb_array_iterator_init_mem(&array_iterator, g_charsets, tb_arrayn(g_charsets), sizeof(xm_charset_entry_t));
tb_assert_and_check_return_val(iterator, tb_null);
// find it by the binary search
tb_size_t itor = tb_binary_find_all_if(iterator, xm_charset_comp_by_name, name);
if (itor != tb_iterator_tail(iterator)) {
return (xm_charset_entry_ref_t)tb_iterator_item(iterator, itor);
} else {
return tb_null;
}
}
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