Question

我正试图让Boost正则表达式库在XCode 8中表现得非常令人沮丧。

我终于设法对包含进行排序，现在我在尝试从Boost的库文档here运行以下正则表达式示例时遇到了编译器错误。

代码如下：

void print_captures(const std::string& regx, const std::string& text)

{
boost::regex e(regx);
boost::smatch what;
std::cout << "Expression:  \"" << regx << "\"\n";
std::cout << "Text:        \"" << text << "\"\n";
if(boost::regex_match(text, what, e, boost::match_extra))

{
    unsigned i, j;
    std::cout << "** Match found **\n   Sub-Expressions:\n";
    for(i = 0; i < what.size(); ++i)
        std::cout << "      $" << i << " = \"" << what[i] << "\"\n";
    std::cout << "   Captures:\n";
    for(i = 0; i < what.size(); ++i) 
    // compiler error in line above
    {
        std::cout << "      $" << i << " = {";
        for(j = 0; j < what.captures(i).size(); ++j)

    // compiler erro in line above
        {
            if(j)
                std::cout << ", ";
            else
                std::cout << " ";
            std::cout << "\"" << what.captures(i)[j] << "\"";
        }
        std::cout << " }\n";
    }
}
else
{
    std::cout << "** No Match found **\n";
}
}

int main(int , char* [])
{
    print_captures("(([[:lower:]]+)|([[:upper:]]+))+", "aBBcccDDDDDeeeeeeee");
    print_captures("(.*)bar|(.*)bah", "abcbar");
    print_captures("(.*)bar|(.*)bah", "abcbah");
    print_captures("^(?:(\\w+)|(?>\\W+))*$",
               "now is the time for all good men to come to the aid of the party");
return 0;
}

我在上面的方块中指出的点上得到两个错误：

 No member named 'captures' in 'boost::match_results<std::__1::__wrap_iter<const char *>, std::__1::allocator<boost::sub_match<std::__1::__wrap_iter<const char *> > > >'

如果在其他地方已经回答了这个问题，请提前道歉。

知道如何解决这个问题吗？

Boost C ++ Regex示例编译错误

0 个答案: