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博客园 - shootingstars

硬件相关概念 我的Function C的可变参数 C++概念网摘 Mifare 串行读取协议 韦根协议 学习C的可变参数 关于汇编程序调用各种C函数的例子 如何移植Java的类中的super到C++代码中 编译原理学习 关于标准库中的ptr_fun/binary_function/bind1st/bind2nd 使用python编写每日构建工具 boost::regex学习(4) - shootingstars - 博客园 boost::regex学习(3) boost::regex学习(2) 《世界大战》《变形金刚》观后感 boost::regex学习(1) boost::algorithm学习 五种迭代器
boost::regex学习(5) - shootingstars - 博客园
shootingstar · 2007-08-01 · via 博客园 - shootingstars

七:regex_replace学习
写了个去除左侧无效字符(空格,回车,TAB)的正则表达式。

std::string testString = "    \r\n Hello        World  !  GoodBye  World\r\n";
std::
string TrimLeft = "([\\s\\r\\n\\t]*)(\\w*.*)";
boost::regex expression(TrimLeft);
testString 
= boost::regex_replace( testString, expression, "$2" );
std::cout
<< "TrimLeft:" << testString <<std::endl;

打印输出:
TrimLeft:Hello          World  !  GoodBye  World

问题是去除右侧无效字符的正则表达式该怎么写?哪位大侠显个灵,帮助写写看,多谢了。