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113 lines
2.9 KiB
C
113 lines
2.9 KiB
C
/**************************************************************************
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* Copyright (C), AirM2M Tech. Co., Ltd.
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*
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* Name: iconv.c
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* Author: liweiqiang
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* Version: V0.1
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* Date: 2013/7/15
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*
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* Description:
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* 字符编码转换
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**************************************************************************/
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/*
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@module iconv
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@summary 字符编码转换
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@version V0.1
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@data 2021年12月13日
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*/
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#include <string.h>
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#include "iconv.h"
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#include "prv_iconv.h"
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typedef struct builtin_iconv_map_tag
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{
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const char *from;
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const char *to;
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const iconv_fct fct;
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}builtin_iconv_map;
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static const builtin_iconv_map iconv_map[] =
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{
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{"ucs2", "gb2312", iconv_ucs2_to_gb2312},
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/*+\NEW\liweiqiang\2013.11.26\完善gb2312<->ucs2(ucs2be)编码转换*/
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{"ucs2be", "gb2312", iconv_ucs2be_to_gb2312},
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{"gb2312", "ucs2", iconv_gb2312_to_ucs2},
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{"gb2312", "ucs2be", iconv_gb2312_to_ucs2be},
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/*-\NEW\liweiqiang\2013.11.26\完善gb2312<->ucs2(ucs2be)编码转换*/
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/*+\NEW\liweiqiang\2013.7.19\增加utf8<->ucs2,ucs2be编码转换*/
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{"utf8", "ucs2", iconv_utf8_to_ucs2},
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{"utf8", "ucs2be", iconv_utf8_to_ucs2be},
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{"ucs2", "utf8", iconv_ucs2_to_utf8},
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{"ucs2be", "utf8", iconv_ucs2be_to_utf8},
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/*-\NEW\liweiqiang\2013.7.19\增加utf8<->ucs2,ucs2be编码转换*/
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};
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/*
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打开相应字符编码转换函数
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@function iconv.open(tocode, fromcode)
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@string tocode$目标编码格式$gb2312/ucs2/ucs2be/utf8
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@string fromcode$源编码格式$gb2312/ucs2/ucs2be/utf8
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@return table$cd$编码转换函数的转换句柄$
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@usage
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--unicode大端编码 转化为 utf8编码
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local cd = iconv.open("utf8", "ucs2be")
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*/
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iconv_t iconv_open (const char * to_code, const char * from_code)
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{
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size_t i;
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for(i = 0; i < sizeof(iconv_map)/sizeof(iconv_map[0]); i++)
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{
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if(strcmp(iconv_map[i].from, from_code) == 0 &&
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strcmp(iconv_map[i].to, to_code) == 0)
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{
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return (iconv_t)&iconv_map[i];
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}
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}
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return (iconv_t)-1;
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}
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/*
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字符编码转换
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@function cd:iconv(inbuf)
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@string inbuf$输入字符串$例如:ucs2s
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@return number$result$返回编码转换后的结果$0成功,-1失败
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@usage
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--unicode大端编码 转化为 utf8编码
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function ucs2beToUtf8(ucs2s)
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local cd = iconv.open("utf8", "ucs2be")
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return cd:iconv(ucs2s)
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end
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*/
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size_t iconv_convert (iconv_t __cd, char ** __inbuf, size_t * __inbytesleft, char ** __outbuf, size_t * __outbytesleft)
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{
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builtin_iconv_map *_map_cd = (builtin_iconv_map *)__cd;
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if(__inbuf == NULL || *__inbuf == NULL)
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return (size_t)-1;
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if(_map_cd < &iconv_map[0] &&
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_map_cd > &iconv_map[sizeof(iconv_map)/sizeof(iconv_map[0])])
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return (size_t)-1;
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return _map_cd->fct(__inbuf, __inbytesleft, __outbuf, __outbytesleft);
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}
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/*
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关闭字符编码转换
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@function iconv.close(cd)
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@string cd$iconv.open返回的句柄$
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@return
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@usage
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--关闭字符编码转换
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local cd = iconv.open("utf8", "ucs2be")
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iconv.close(cd)
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*/
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int iconv_close (iconv_t cd)
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{
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return 0;
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}
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