将一行 csv 文件拆分为 std::vector?

问题描述

我有一个函数可以逐行读取 CSV 文件.对于每一行，它会将这条线分割成一个向量.执行此操作的代码是

I have a function that will read a CSV file line by line. For each line, it will split the line into a vector. The code to do this is

    std::stringstream ss(sText);
    std::string item;

    while(std::getline(ss, item, ','))
    {
        m_vecFields.push_back(item);
    }

这工作正常，除非它读取最后一个值为空的行.例如，

This works fine except for if it reads a line where the last value is blank. For example,

text1,tex2,

我希望它返回一个大小为 3 的向量，其中第三个值只是空的.但是，它只返回大小为 2 的向量.我该如何纠正?

I would want this to return a vector of size 3 where the third value is just empty. However, instead it just returns a vector of size 2. How can I correct this?

推荐答案

bool addEmptyLine = sText.back() == ',';

/* your code here */

if (addEmptyLine) m_vecFields.push_back("");

或

sText += ',';     // text1, text2,,

/* your code */

assert(m_vecFields.size() == 3);

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