unw*_*guy 13 c++ boost boost-regex
我有这些变量:
boost::regex re //regular expression to use
std::string stringToChange //replace this string
std::string newValue //new value that is going to replace the stringToChange depending on the regex.
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我只想替换它的第一次出现.
谢谢费拉斯.
编辑:我发现了这个:
boost::regex_replace(stringToChange, re, boost::format_first_only);
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但它说功能不存在,我猜这些参数目前是不正确的.
Jes*_*ood 34
以下是基本用法示例:
#include <iostream>
#include <string>
#include <boost/regex.hpp>
int main(){
std::string str = "hellooooooooo";
std::string newtext = "o Bob";
boost::regex re("ooooooooo");
std::cout << str << std::endl;
std::string result = boost::regex_replace(str, re, newtext);
std::cout << result << std::endl;
}
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产量
hellooooooooo
你好鲍勃
确保包含<boost/regex.hpp>并链接到boost_regex库.