string.cpp

 
// UFO
#include <ufo/utility/string.hpp>
 
// STL
#include <algorithm>
#include <cstddef>
#include <sstream>
#include <string>
#include <vector>
 
std::vector<std::string> ufo::split(std::string const& s, char delimiter)
{
    std::vector<std::string> result;
    std::string              token;
    std::istringstream       stream(s);
    while (std::getline(stream, token, delimiter)) {
        result.push_back(token);
    }
    return result;
}
 
std::string ufo::join(std::vector<std::string> const& strings, char delimiter)
{
    if (strings.empty()) {
        return "";
    }
 
    std::string result = strings.front();
    for (std::size_t i{1}; strings.size() > i; ++i) {
        result += delimiter;
        result += strings[i];
    }
    return result;
}
 
bool ufo::startsWith(std::string const& s, std::string const& prefix)
{
    return s.size() >= prefix.size() && std::equal(prefix.begin(), prefix.end(), s.begin());
}
 
bool ufo::endsWith(std::string const& s, std::string const& suffix)
{
    return s.size() >= suffix.size() &&
           std::equal(suffix.rbegin(), suffix.rend(), s.rbegin());
}
 
bool ufo::contains(std::string const& s, std::string const& sub)
{
    return s.find(sub) != std::string::npos;
}
 
std::string ufo::tolower(std::string s)
{
    std::transform(s.begin(), s.end(), s.begin(),
                   [](unsigned char c) { return static_cast<char>(std::tolower(c)); });
    return s;
}
 
std::string ufo::toupper(std::string s)
{
    std::transform(s.begin(), s.end(), s.begin(),
                   [](unsigned char c) { return static_cast<char>(std::toupper(c)); });
    return s;
}
 
void ufo::ltrim(std::string& s)
{
    s.erase(s.begin(), std::find_if(s.begin(), s.end(),
                                    [](unsigned char ch) { return !std::isspace(ch); }));
}
 
void ufo::rtrim(std::string& s)
{
    s.erase(std::find_if(s.rbegin(), s.rend(),
                         [](unsigned char ch) { return !std::isspace(ch); })
                .base(),
            s.end());
}
 
void ufo::trim(std::string& s)
{
    rtrim(s);
    ltrim(s);
}
 
std::string ufo::ltrimCopy(std::string s)
{
    ltrim(s);
    return s;
}
 
std::string ufo::rtrimCopy(std::string s)
{
    rtrim(s);
    return s;
}
 
std::string ufo::trimCopy(std::string s)
{
    trim(s);
    return s;
}