我在用
boost::split(strs,r_strCommandLine,boost::is_any_of("\t "));
将字符串吐入标记以解析简单脚本.到现在为止还挺好.但是,对于以下字符串
command_name first_argument "Second argument which is a quoted string."
我想要我的代币
strs[0] = command_name strs[1] = first_argument strs[2] = "Second argument which is a quoted string."
当然,我可以在标记的开头和结尾搜索引号字符,并使用“”分隔符合并标记以引号开头的事件和以引号结束的标记之间的标记,以重新创建引用的字符串,但我想知道如果有一种更有效/更优雅的方式来做到这一点.有任何想法吗?
解决方法
使用
boost::tokenizer
的示例:
#include <string> #include <iostream> using std::cout; using std::string; #include <boost/tokenizer.hpp> using boost::tokenizer; using boost::escaped_list_separator; typedef tokenizer<escaped_list_separator<char> > so_tokenizer; int main() { string s("command_name first_argument " "\"Second argument which is a quoted string.\""); so_tokenizer tok(s,escaped_list_separator<char>('\\',' ','\"')); for(so_tokenizer::iterator beg=tok.begin(); beg!=tok.end(); ++beg) { cout << *beg << "\n"; } return 0; }
输出:
command_name first_argument Second argument which is a quoted string.
请参阅https://ideone.com/gwCpug的演示.