删除字符串开头的某些字符

Question

Here's the usecase.

I have got a string with relative path to the folder. It's format may vary a little bit depending on where it came from (I am dealing with exported files from difference software).

For example: ./path/to/folder , /path/to/folder , path/to/folder .

What I need to do is to delete all the characters '.' , '/' from the beginning of the string. Of course I can just do this manually in a for loop, but I thought maybe there's some kind of stl function exactly for such use-cases.

Answer 1

I thought maybe there's some kind of stl function exactly for such use-cases

#include <regex>

const std::string src("./path/to/folder");
static const std::regex re("^\\.?\\/?");

const std::string result = std::regex_replace(src, re, "");

If you need more efficiency than what <regex> provides, do it manually.