P.bhw98
{
PADDING-RIGHT: 0px;
PADDING-LEFT: 0px;
FONT-SIZE: 9pt;
PADDING-BOTTOM: 0px;
MARGIN: 10px 0px 5px;
LINE-HEIGHT: normal;
PADDING-TOP: 0px;
FONT-FAMILY: Verdana, Arial
}
PRE.bhw98
{
FONT-SIZE: 9pt;
PADDING-RIGHT: 5px;
PADDING-LEFT: 5px;
PADDING-BOTTOM: 5px;
MARGIN: 5px 0px;
LINE-HEIGHT: normal;
PADDING-TOP: 5px;
BACKGROUND-COLOR: #f0f0f0
}
PRE.diag
{
FONT-SIZE: 9pt;
PADDING-RIGHT: 5px;
PADDING-LEFT: 5px;
PADDING-BOTTOM: 5px;
MARGIN: 5px 0px;
LINE-HEIGHT: normal;
PADDING-TOP: 5px;
}
CODE.bhw98
{
FONT-SIZE: 9pt;
COLOR: #000000
}
TABLE.bhw98
{
BORDER-RIGHT: #808080 1px solid;
BORDER-TOP: #808080 1px solid;
FONT-SIZE: 9pt;
MARGIN: 3px 0px 10px;
BORDER-LEFT: #808080 1px solid;
LINE-HEIGHT: normal;
BORDER-BOTTOM: #808080 1px solid;
FONT-FAMILY: Verdana, Arial
}
TD.bhw98
{
BORDER-RIGHT: darkgray 1px solid;
PADDING-RIGHT: 10px;
BORDER-TOP: darkgray 1px solid;
PADDING-LEFT: 5px;
FONT-SIZE: 9pt;
PADDING-BOTTOM: 0px;
MARGIN: 0px;
BORDER-LEFT: darkgray 1px solid;
LINE-HEIGHT: normal;
PADDING-TOP: 3px;
BORDER-BOTTOM: darkgray 1px solid;
FONT-FAMILY: Verdana, Arial;
BACKGROUND-COLOR: #f0f0f0
}
STRONG.bhw98
{
FONT-WEIGHT: bolder;
FONT-SIZE: 20pt;
COLOR: #228b22;
FONT-STYLE: italic;
FONT-FAMILY: Verdana, Arial
}
LI.bhw98
{
FONT-SIZE: 9pt;
MARGIN: 3px 0px 0px 3px;
LINE-HEIGHT: normal;
FONT-FAMILY: Verdana, Arial
}
H1.bhw98
{
MARGIN-TOP: 25px;
FONT-WEIGHT: bolder;
FONT-SIZE: 12pt;
MARGIN-BOTTOM: 5px;
LINE-HEIGHT: normal;
FONT-FAMILY: Verdana, Arial
}
H2.bhw98
{
MARGIN-TOP: 20px;
FONT-WEIGHT: bolder;
FONT-SIZE: 10.5pt;
MARGIN-BOTTOM: 5px;
LINE-HEIGHT: normal;
FONT-FAMILY: Verdana, Arial
}
H3.bhw98
{
MARGIN-TOP: 15px;
FONT-WEIGHT: bolder;
FONT-SIZE: 9pt;
MARGIN-BOTTOM: 5px;
LINE-HEIGHT: normal;
FONT-FAMILY: Verdana, Arial
}
SPAN.key
{
COLOR: #0000ff
}
SPAN.num
{
COLOR: #800000
}
SPAN.str
{
COLOR: #8b008b
}
SPAN.rem
{
COLOR: #008000
}
Quoted-Printable也是MIME邮件中常用的编码方式之一。同Base64一样，它也将输入的字符串或数据编码成全是ASCII码的可打印字符串。
Quoted-Printable编码的基本方法是：输入数据在33-60、62-126范围内的，直接输出；其它的需编码为“=”加两个字节的HEX码(大写)。为保证输出行不超过规定长度，可在行尾加“=\r\n”序列作为软回车。
int EncodeQuoted(const unsigned char* pSrc, char* pDst, int nSrcLen, int nMaxLineLen)
{
int nDstLen; // 输出的字符计数
int nLineLen; // 输出的行长度计数
nDstLen = 0;
nLineLen = 0;
for (int i = 0; i < nSrcLen; i++, pSrc++)
{
// ASCII 33-60, 62-126原样输出，其余的需编码
if ((*pSrc = '!') && (*pSrc '~') && (*pSrc != '='))
{
*pDst++ = (char)*pSrc;
nDstLen++;
nLineLen++;
}
else
{
sprintf(pDst, "=%02X", *pSrc);
pDst += 3;
nDstLen += 3;
nLineLen += 3;
}
// 输出换行？
if (nLineLen = nMaxLineLen - 3)
{
sprintf(pDst, "=\r\n");
pDst += 3;
nDstLen += 3;
nLineLen = 0;
}
}
// 输出加个结束符
*pDst = '\0';
return nDstLen;
}
Quoted-Printable解码很简单，将编码过程反过来就行了。
int DecodeQuoted(const char* pSrc, unsigned char* pDst, int nSrcLen)
{
int nDstLen; // 输出的字符计数
int i;
i = 0;
nDstLen = 0;
while (i < nSrcLen)
{
if (strncmp(pSrc, "=\r\n", 3) == 0) // 软回车，跳过
{
pSrc += 3;
i += 3;
}
else
{
if (*pSrc == '=') // 是编码字节
{
sscanf(pSrc, "=%02X", pDst);
pDst++;
pSrc += 3;
i += 3;
}
else // 非编码字节
{
*pDst++ = (unsigned char)*pSrc++;
i++;
}
nDstLen++;
}
}
// 输出加个结束符
*pDst = '\0';
return nDstLen;
}
[相关资源]
RFC/STD文档：Internet FAQ Archives
bhw98的专栏：http://www.csdn.net/develop/author/netauthor/bhw98/
首次发布: 2003-06-23
最后修订: 2003-06-23