为什么它只打印文本文件的一个词而不是将整个文本文件打印到 html 文件

Question

我目前正在开发一个项目，该项目使用命令行属性将 .txt 文件转换为 .xhtml 文件。特别地，该程序将 ASCII 文本文件转换为 xhtml 1.0 文件，其中包含与原始 ASCII 文本文件相同的文本内容。我似乎遇到的问题是，当我打开 .html 文件以从旧的 .txt 文件中读取内容时，只有文件中的一个词被读入 html 文件。谁能解释为什么会这样？对你的帮助会很大 appreciated.Thank 提前。

//Programmer:
    //Date: March 9 2015
    //Purpose: converts an old style text file into any format
    #include <iostream>
    #include <fstream>
    #include <string>
    #include <stdlib.h>
    #include <map>

    using namespace std;

    // getWord function to read in all words
    istream& getWord(istream& is, string& word)
    {
        // find the beginning of the word (ie . eat all the non alphas)
        char ch;

        while (is.get(ch))
        {

            if (isalpha(ch))
                break;
        }
        // quit if no word found
        if (!is)
            return is;

        string buffer;
        buffer += ch;   // put the valid alpha onto the buffer
        while (is.get(ch))
        {
            if (isalpha(ch))
                buffer += ch;
            else
                break;
        }
        if (is)
            is.unget();
        if (is.eof())
            is.clear();
        if (is)
            //word = buffer;        // put the complete buffer into the word so it can be returned by reference. 
            //This does a copy + destroy!!
            swap(word, buffer);         // C++98(swap owner, then destory the old)
        word = std::move(buffer);   // C++ 11 
        return is;
    }

    int main(int argc, char* argv[])

    {
        ifstream infile(argv[1]);
        char ch = 0;
        while (infile.get(ch)){
            cout.put(ch);
        }

        // print out all the command line arguments
        for (size_t i = 0; i < argc; ++i)
        {
            string s = (string)argv[i];
            cout << s << endl;
        }
        //if input file is at location 1 in the command line
        string input = argv[1];
        for (size_t i = 0; i < input.size(); ++i)
        {
            cout.put(input[i]);
        }
        cout << endl;


    // Creating the html output file
        ofstream out("title.html");
        out << "<html xmlns=\"http://www.w3.org/1999//xhtml\"xml:lang=\"en\">" << endl;
        out << "<head>" << endl;
        out << "<meta http - equiv = \"Content-Type\" content = \"text/html; charset=UTF-8\" />" << endl;
        out << "<title>" << argv[1] << "</title>" << endl;
        out << "</head>" << endl;
        out << "<body>" << argv[1] << endl;

        // extracting the words from the file and storing it in a container
        typedef map<string, unsigned> dictionary_type;
        dictionary_type words;

        // read the information in to find only words
        string word;
        while (getWord(infile, word))
        {
            auto loc = words.find(word);
            if (loc == words.end())
                words.insert(pair<string, int>(word, 1));
            else
                loc->second++;
        }
        //print out the container
        for (auto w : words)
            cout << w.first << ": " << w.second << endl;
        out << "</body>" << endl << "</html>";



    }

Answer 1

我看到几个问题：

您正在先读取文件的内容，将内容回显到 std::cout。完成之后，就没有什么可以从文件中读取的了。添加调用以倒回文件，然后再次读取其内容。
```
infile.clear();  // Clear its state. Otherwise infile.eof() is true.
infile.seekg(0); // rewind
```

这些行需要在

之前

    while (getWord(infile, word))

您有以下行：
```
if (is)
   swap(word, buffer);         // C++98(swap owner, then destory the old)
word = std::move(buffer);   // C++ 11 
```
您只需要使用其中一个，不需要同时使用两个。如果同时使用两者，word 将设置为空字符串。

为什么它只打印文本文件的一个词而不是将整个文本文件打印到 html 文件

Why is it only printing one word of the text file rather than the whole text file to a html file

c++

command-line