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/*
Ousía
Copyright (C) 2014, 2015 Benjamin Paaßen, Andreas Stöckel
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <algorithm>
#include <cctype>
#include <limits>
#include <string>
#include "Utils.hpp"
namespace ousia {
std::string Utils::trim(const std::string &s)
{
std::pair<size_t, size_t> bounds = trim(s, Utils::isWhitespace);
return s.substr(bounds.first, bounds.second - bounds.first);
}
bool Utils::isIdentifier(const std::string &name)
{
bool first = true;
for (char c : name) {
if (first && !(isAlphabetic(c) || c == '_')) {
return false;
}
if (!first && !(isAlphanumeric(c) || c == '_' || c == '-')) {
return false;
}
first = false;
}
return true;
}
std::vector<std::string> Utils::split(const std::string &s, char delim)
{
std::vector<std::string> res;
const size_t totalLen = s.size();
size_t start = 0;
size_t len = 0;
for (size_t i = 0; i <= totalLen; i++) {
if (i == totalLen || s[i] == delim) {
res.push_back(s.substr(start, len));
start = i + 1;
len = 0;
} else {
len++;
}
}
return res;
}
std::string Utils::toLower(std::string s)
{
std::transform(s.begin(), s.end(), s.begin(), tolower);
return s;
}
std::string Utils::extractFileExtension(const std::string &filename)
{
size_t n = 0;
for (ssize_t i = filename.size() - 1; i >= 0; i--) {
if (filename[i] == '/' || filename[i] == '\\') {
return std::string{};
}
if (filename[i] == '.') {
return toLower(filename.substr(i + 1, n));
}
n++;
}
return std::string{};
}
}
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