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/*
* Copyright 2003-2019 The Music Player Daemon Project
* http://www.musicpd.org
*
* 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 2 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, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "Util.hxx"
#include <assert.h>
/** Get rid of white space at both ends */
void
trimstring(std::string &s, const char *ws) noexcept
{
auto pos = s.find_first_not_of(ws);
if (pos == std::string::npos) {
s.clear();
return;
}
s.erase(0, pos);
pos = s.find_last_not_of(ws);
if (pos != std::string::npos && pos != s.length()-1)
s.erase(pos + 1);
}
static void
path_catslash(std::string &s) noexcept
{
if (s.empty() || s.back() != '/')
s += '/';
}
std::string
path_getfather(const std::string &s) noexcept
{
std::string father = s;
// ??
if (father.empty())
return "./";
if (father.back() == '/') {
// Input ends with /. Strip it, handle special case for root
if (father.length() == 1)
return father;
father.erase(father.length()-1);
}
auto slp = father.rfind('/');
if (slp == std::string::npos)
return "./";
father.erase(slp);
path_catslash(father);
return father;
}
std::list<std::string>
stringToTokens(const std::string &str,
const char delim) noexcept
{
std::list<std::string> tokens;
std::string::size_type startPos = str.find_first_not_of(delim, 0);
// Skip initial delims, return empty if this eats all.
if (startPos == std::string::npos)
return tokens;
while (startPos < str.size()) {
// Find next delimiter or end of string (end of token)
auto pos = str.find_first_of(delim, startPos);
// Add token to the vector and adjust start
if (pos == std::string::npos) {
tokens.emplace_back(str, startPos);
break;
} else if (pos == startPos) {
// Dont' push empty tokens after first
if (tokens.empty())
tokens.emplace_back();
startPos = ++pos;
} else {
tokens.emplace_back(str, startPos, pos - startPos);
startPos = ++pos;
}
}
return tokens;
}
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