如何解决C++如何将文本文件格式化为html文件
我对 C++ 很陌生。我有我需要我的程序做的构建块，即：读取由命令行输入的文本文件（例如 ./textToHtml.exe Alien.txt），并通过实现正确的 HTML 标签从文本文件创建一个 html 文件，当必要的。
我提供了下面的代码，以及 html 文件结构。这是一个项目，我需要在每个段落和每行空白行之后都有换行符 <br>。我已经提供了我想要的最后一个 HTML 结构。
#include <iostream>
#include <string>
#include <fstream>
using namespace std;
int main(int argc,char *argv[])
{
std::ifstream txtFile(argv[1]);
std::string fn = argv[1];
std::string fileName = fn.substr(0,fn.size() - 4);
if (txtFile)
{
std::ofstream html(fileName + "1.txt");
if (html)
{
html << "<HTML>\n"
<< "<head>\n"
<< "<title>";
std::string line{};
if (std::getline(txtFile,line))
{
html << line << "</title>" << '\n';
}
html << "</head>\n"
<< "<body>\n";
while (std::getline(txtFile,line))
{
html << line << "<br>" << '\n';
}
html << "</body>" << '\n'
<< "</html>" << '\n';
}
}
return 0;
}
HTML 文件如下所示：
<HTML>
<head>
<title>Are These Aliens Martians?</title>
</head>
<body>
<br>
<br>
an adaptation<br>
<br>
The men from Earth stared at the aliens.<br>
The little green men had pointed heads and<br>
orange toes with one long curly hair on each toe.<br>
<br>
H. G. Wells' novel The War of the Worlds (1898)<br>
has had an extraordinary influence on science fiction. <br>
Wells' Martians are a technologically advanced species<br>
with an ancient civilization. They somewhat resemble<br>
cephalopods,with large,bulky brown bodies and<br>
sixteen snake-like tentacles,in two groups of eight,<br>
around a quivering V-shaped mouth; they move around in<br>
100 feet tall tripod fighting-machines they assemble<br>
upon landing,killing everything in their path.<br>
<br>
<br>
<br>
by your name<br>
<br>
</body>
</html>
我需要 HTML 文件的样子：
<HTML>
<head>
<title>Are These Aliens Martians?</title> //my output has <br> here
<br>
<br>
an adaptation<br>
<br>
The men from Earth stared at the aliens.
The little green men had pointed heads and
orange toes with one long curly hair on each toe.<br> //Just need a <br> at the end of each paragraph
<br>
H. G. Wells' novel The War of the Worlds (1898)
has had an extraordinary influence on science fiction.
Wells' Martians are a technologically advanced species
with an ancient civilization. They somewhat resemble
cephalopods,bulky brown bodies and
sixteen snake-like tentacles,around a quivering V-shaped mouth; they move around in
100 feet tall tripod fighting-machines they assemble
upon landing,killing everything in their path.<br> //Again just one <br> here not one each line
<br>
<br>
<br>
by your name<br>
<br>
</body>
</html>
解决方法
尝试更像这样的事情：
#include <iostream>
#include <string>
#include <fstream>
void htmlencode(std::string &s)
{
std::string::size_type pos = 0;
while ((pos = s.find_first_of("<>&",pos)) != std::string::npos)
{
std::string replacement;
switch (s[pos])
{
case '<':
replacement = "<";
break;
case '>':
replacement = ">";
break;
case '&':
replacement = "&";
break;
}
s.replace(pos,1,replacement);
pos += replacement.size();
}
}
int main(int argc,char* argv[])
{
std::string fn = argv[1];
std::ifstream txtFile(fn);
if (txtFile)
{
std::string fileName = fn.substr(0,fn.rfind('.'));
std::ofstream html(fileName + "1.html");
if (html)
{
html << "<HTML>\n"
<< "<head>\n"
<< "<title>";
std::string line;
if (std::getline(txtFile,line))
{
htmlencode(line);
html << line;
}
html << "</title>\n"
<< "</head>\n"
<< "<body>\n";
bool lastLineNotEmpty = false;
while (std::getline(txtFile,line))
{
if (line.empty())
{
if (lastLineNotEmpty)
html << "<br>\n";
html << "<br>\n";
lastLineNotEmpty = false;
}
else
{
if (lastLineNotEmpty)
html << '\n';
htmlencode(line);
html << line;
lastLineNotEmpty = true;
}
}
if (lastLineNotEmpty)
html << "<br>\n";
html << "</body>\n"
<< "</html>\n";
}
}
return 0;
}
然而，HTML 有专门为段落设计的 <p></p> 标签，所以你应该考虑使用它们而不是 <br>，例如：
#include <iostream>
#include <string>
#include <fstream>
void htmlencode(std::string &s)
{
std::string::size_type pos = 0;
while ((pos = s.find_first_of("<>&",replacement);
pos += replacement.size();
}
}
int main(int argc,fn.rfind('.'));
std::ofstream html(fileName + "1.html");
if (html)
{
html << "<HTML>\n"
<< "<head>\n"
<< "<title>";
std::string line;
if (std::getline(txtFile,line))
{
htmlencode(line);
html << line;
}
html << "</title>\n"
<< "</head>\n"
<< "<body>\n";
bool inParagraph = false;
while (std::getline(txtFile,line))
{
if (line.empty())
{
if (inParagraph)
{
inParagraph = false;
html << "</p>\n";
}
}
else
{
if (!inParagraph)
{
inParagraph = true;
html << "<p>\n";
}
htmlencode(line);
html << line << '\n';
}
}
if (inParagraph)
html << "</p>\n";
html << "</body>\n"
<< "</html>\n";
}
}
return 0;
}
版权声明：本文内容由互联网用户自发贡献，该文观点与技术仅代表作者本人。本站仅提供信息存储空间服务，不拥有所有权，不承担相关法律责任。如发现本站有涉嫌侵权/违法违规的内容， 请发送邮件至 dio@foxmail.com 举报，一经查实，本站将立刻删除。
