Utilities.h

#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include <pwd.h>

#include <iostream>
#include <string>
#include <sstream>
#include <vector>
#include <algorithm>
#include <cctype>
#include <locale>

static inline void split(const std::string &s, char delim, std::vector<std::string> &v)
{
	std::istringstream iss(s);
	std::string item;
	while (std::getline(iss, item, delim))
		v.push_back(item);
}

// trim from start (in place)
static inline void ltrim(std::string &s) {
    s.erase(s.begin(), std::find_if(s.begin(), s.end(), [](int ch) {
        return !std::isspace(ch);
    }));
}

// trim from end (in place)
static inline void rtrim(std::string &s) {
    s.erase(std::find_if(s.rbegin(), s.rend(), [](int ch) {
        return !std::isspace(ch);
    }).base(), s.end());
}

// trim from both ends (in place)
static inline void trim(std::string &s) {
    ltrim(s);
    rtrim(s);
}

// trim from start (copying)
static inline std::string ltrim_copy(std::string s) {
    ltrim(s);
    return s;
}

// trim from end (copying)
static inline std::string rtrim_copy(std::string s) {
    rtrim(s);
    return s;
}

// trim from both ends (copying)
static inline std::string trim_copy(std::string s) {
    trim(s);
    return s;
}