我有一些生成HTML文件的代码，但是，如果有很多文本，文件将远远超过50mb，有时达到70-80mb。
老实说，我不想让一个HTML文件达到这个大小。这是定义HTML模板的源代码。
namespace Structure
{
const std::string strHTMLTemplate = "<doctype html>"
"<html lang="en">"
"<head>"
"<meta charset="utf-8"/>"
"<title>Data Verifier Test Results - {@testdesc}</title>"
"<style>"
"body {"
"tbackground: none repeat scroll 0 0 #F3F3F4;"
"tcolor: #1E1E1F;"
"tfont-family: "Segoe UI",Tahoma,Geneva,Verdana,sans-serif;"
"tmargin: 0;"
"tpadding: 0;"
"}"
"h1 {"
"tbackground-color: #E2E2E2;"
"tborder-bottom: 1px solid #C1C1C2;"
"tcolor: #201F20;"
"tfont-size: 24pt;"
"tfont-weight: normal;"
"tmargin: 0;"
"tpadding: 10px 0 10px 10px;"
"}"
"h2 {"
"tfont-size: 21pt;"
"tfont-weight: normal;"
"tmargin: 0;"
"tpadding: 15px 0 5px;"
"}"
"h3 {"
"tbackground-color: rgba(0, 0, 0, 0);"
"tfont-size: 18pt;"
"tfont-weight: normal;"
"tmargin: 0;"
"tpadding: 15px 0 5px;"
"}"
"h4 {"
"tbackground-color: rgba(0, 0, 0, 0);"
"tfont-size: 15pt;"
"tfont-weight: normal;"
"tmargin: 0;"
"tpadding: 15px 0 5px;"
"}"
"h5 {"
"tbackground-color: rgba(0, 0, 0, 0);"
"tfont-size: 12pt;"
"tfont-weight: normal;"
"tmargin: 0;"
"tpadding: 15px 0 5px;"
"}"
"a {"
"tcolor: #1382CE;"
"}"
"table {"
"tborder-collapse: collapse;"
"tborder-spacing: 0;"
"tfont-size: 8pt;"
"}"
"table th {"
"tbackground: none repeat scroll 0 0 #E7E7E8;"
"tfont-weight: normal;"
"tpadding: 1px 2px;"
"ttext-align: left;"
"ttext-decoration: none;"
"}"
"table td {"
"tbackground: none repeat scroll 0 0 #F7F7F8;"
"tborder: 1px solid #E7E7E8;"
"tmargin: 0;"
"tpadding: 1px 2px 1px 1px;"
"tvertical-align: top;"
"}"
""
".textCentered {"
"ttext-align: center;"
"}"
".messageCell {"
"twidth: 100;"
"}"
"#content {"
"tpadding: 0 12px 12px;"
"}"
"#overview table {"
"tmax-width: 75;"
"twidth: auto;"
"}"
"#messages table {"
"twidth: 97;"
"}"
"</style>"
"</head>"
"<body>"
"<div id="big_wrapper">"
"t<h1>Test Results - {@testdesc}</h1>"
"t"
"{@eeddata}"
"t"
"</body>"
"</html>";
const std::string strHTMLEEDDataEntireMsgTemplate = "t"
"tt<h2 _locID="EEDInfo">{@indveeddata}</h2>"
"{@clientdata}"
"t";
const std::string strHTMLEEDDataTemplate = "t"
"{@clientdata}"
"t";
const std::string strHTMLRequestTemplate = "tt<h2 _locID="ReqInfo">Request Information</h2>"
"tt<div id="ReqInfoResults">"
"tt</div>"
"tt<div id="ReqValueResults">"
"tt<h3 _locID="RequestDataTitle">Request Data</h3>"
"ttt<table>"
"{@requestbody}"
"ttt</table>"
"tt</div>";
const std::string strHTMLResponseTemplate = "tt<h2 _locID="ResponseTitle">Response Results</h2>"
"tt<div id="RespInfoResults">"
"tt</div>"
"tt<div id="RespValueResults">"
"tt<h3 _locID="ResponseDataTitle">Response Data</h3>"
"ttt<table>"
"{@responsebody}"
"ttt</table>"
"tt</div>";
const std::string strHTMLSingleMessageTemplate = "tt<h4 _locID="MessageTitle">RWF Message</h4>"
"tt<div id="MessageResults">"
"tt<h5 _locID="ActualMessageResults">Source: {@source} Destination: {@destination} Timestamp: {@timestamp}</h5>"
"{@messagebody}"
"tt</div>";
const std::string strHTMLClientDataTemplate = "tt<h3 _locID="Client ID: ">{@clientid} {@subclientid}</h3>"
"{@requestmsg}"
"{@responsemsg}";
const std::string strHTMLResponseHdrTemplate = "<tr>"
"<th></th>"
"<th _locID="TypeHeader">Type</th>"
"<th _locID="ValueHeader">Value</th>"
"</tr>"
"<tr>"
"<td style="background: blue"></td>"
"<td><strong>Path</strong></td>"
"<td>{@url}</td>"
"</tr>"
"<tr>"
"<td style="background: blue"></td>"
"<td><strong>IP Address</strong></td>"
"<td>{@iptosendto}</td>"
"</tr>";
const std::string strHTMLReqHdrRowTemplate = "<tr>"
"<th></th>"
"{@reqhdrrowvalue}"
"</tr>";
const std::string strHTMLRespHdrRowTemplate = "<tr>"
"<th></th>"
"{@resphdrrowvalue}"
"</tr>";
const std::string strHTMLReqHdrRowValueTemplate = "<th _locID="{@requestvaluehdr}Header"><strong>{@requestvaluehdr}<strong></th>";
const std::string strHTMLRespHdrRowValueTemplate = "<th _locID="{@responsevaluehdr}Header"><strong>{@responsevaluehdr}<strong></th>";
const std::string strHTMLReqDataRowTemplate = "<tr>"
"<td style="background: blue"></td>"
"{@reqdatarowvalue}"
"</tr>";
const std::string strHTMLRespDataRowTemplate = "<tr>"
"<td style="background: blue"></td>"
"{@respdatarowvalue}"
"</tr>";
const std::string strHTMLRespDataRowValueTemplate = "<td>{@responsevalue}</td>";
const std::string strHTMLReqDataRowValueTemplate = "<td>{@requestvalue}</td>";
const std::string strHTMLCLIENTDATA = "{@clientdata}";
const std::string strHTMLEEDSDATA = "{@eeddata}";
const std::string strHTMLINDVEEDDATA = "{@indveeddata}";
const std::string strHTMLCLIENTID = "{@clientid}";
const std::string strHTMLSUBCLIENTID = "{@subclientid}";
const std::string strHTMLSOURCEIP = "{@source}";
const std::string strHTMLDESTINATIONIP = "{@destination}";
const std::string strHTMLTIMESTAMP = "{@timestamp}";
const std::string strHTMLREQUESTMSG = "{@requestmsg}";
const std::string strHTMLRESPONSEMSG = "{@responsemsg}";
const std::string strHTMLREQUESTBODY = "{@requestbody}";
const std::string strHTMLRESPONSEBODY = "{@responsebody}";
const std::string strHTMLMESSAGEBODY = "{@messagebody}";
const std::string strHTMLREQHDRROWVALUE = "{@reqhdrrowvalue}";
const std::string strHTMLRESPHDRROWVALUE = "{@resphdrrowvalue}";
const std::string strHTMLREQUESTHDR = "{@requesthdr}";
const std::string strHTMLRESPONSEHDR = "{@responsehdr}";
const std::string strHTMLREQUESTVALUEHDR = "{@requestvaluehdr}";
const std::string strHTMLRESPONSEVALUEHDR = "{@responsevaluehdr}";
const std::string strHTMLREQDATAROWVALUE = "{@reqdatarowvalue}";
const std::string strHTMLRESPDATAROWVALUE = "{@respdatarowvalue}";
const std::string strHTMLREQUESTVALUE = "{@requestvalue}";
const std::string strHTMLRESPONSEVALUE = "{@responsevalue}";
const std::string strHTMLTESTDESCRIPTION = "{@testdesc}";
}
有超过1000个调用使用strHTMLReqDataRowTemplate和strHTMLRespDataRowTemplate，并用必要的数据替换{@}标签。这些都是递归完成的。
看着HTML和CSS，你们能看到我可以改善输出的任何方法吗?
HTML页面应该有列和行数据，我经常创建一个表的行和列。
我在看:
style="background: blue">
内联这样的样式会占用大量的空间。如果可能的话，完全删除它并使用CSS，例如:
td:nth-child(2) { ... }
如果这是不可能的，您可以添加一个类而不是内联样式，以节省至少几个字节:
<td class="data"
你甚至可以通过添加自定义属性来作弊:
<td x>Hello</td>
样式化的小例子:
div[x] {color: blue;}
div[y] {color: red;}<div x>Hello</div>
<div y>world</div>然而，最终它仍然是大量的数据，所以最好的主意可能是选择一种不同的格式或压缩HTML文件分发时。即使您从web服务器提供它，您也可以使用gz压缩响应，这将大大减少大小，比上面的微优化所做的要多。
注意，对于浏览器来说，元素是否包含我的小属性hack的完整类名并不重要。最后，需要将整个文档加载到内存中，并且无论在磁盘上存储多么紧凑，具有样式的实际单元格都会消耗大量内存。可能会有一些差异，但不会像你想象的那么大。
c++并不是做这类事情的最佳语言，但我不禁想到这样一个庞大的函数场:
std::string strHTMLReqDataRowTemplate (const std::string & reqdatarowvalue)
{
return "<tr>"
"<td style="background: blue"></td>"+
reqdatarowvalue +
"</tr>";
}
或
std::ostream & strHTMLReqDataRowTemplate (std::ostream & out,
const std::string & reqdatarowvalue)
{
out << "<tr>"
"<td style="background: blue"></td>";
out << reqdatarowvalue;
out << "</tr>";
}
代替字符串场比搜索和替换标签要快。在一个或多个cpp文件中定义函数，这取决于库的大小以及您希望如何组织它，然后您所要公开的是一个充满函数定义的头文件。