/usr/include/mapnik/util/trim.hpp is in libmapnik-dev 2.2.0+ds1-7+b2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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*
* This file is part of Mapnik (c++ mapping toolkit)
*
* Copyright (C) 2012 Artem Pavlenko
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
*****************************************************************************/
#ifndef MAPNIK_TRIM_HPP
#define MAPNIK_TRIM_HPP
// stl
#include <string>
#include <algorithm>
namespace mapnik { namespace util {
/*
https://github.com/mapnik/mapnik/issues/1633
faster trim (than boost::trim)
that intentionally does not respect
std::locale to avoid overhead in cases
where the locale is not critical
*/
static inline bool not_whitespace(int ch)
{
if (ch == ' ' || ch == '\n' || ch == '\r' || ch == '\t') return false;
return true;
}
// trim from start
static inline std::string & ltrim(std::string & s)
{
s.erase(s.begin(), std::find_if(s.begin(), s.end(), not_whitespace));
return s;
}
// trim from end
static inline std::string & rtrim(std::string & s)
{
s.erase(std::find_if(s.rbegin(), s.rend(), not_whitespace).base(), s.end());
return s;
}
// trim from both ends
static inline void trim(std::string & s)
{
ltrim(rtrim(s));
}
static inline std::string trim_copy(std::string s)
{
return ltrim(rtrim(s));
}
static inline bool not_double_quote(int ch)
{
if (ch == '"') return false;
return true;
}
static inline void unquote_double(std::string & s)
{
s.erase(s.begin(), std::find_if(s.begin(), s.end(), not_double_quote));
s.erase(std::find_if(s.rbegin(), s.rend(), not_double_quote).base(), s.end());
}
static inline bool not_quoted(int ch)
{
if (ch == '"' || ch == '\'') return false;
return true;
}
static inline void unquote(std::string & s)
{
s.erase(s.begin(), std::find_if(s.begin(), s.end(), not_quoted));
s.erase(std::find_if(s.rbegin(), s.rend(), not_quoted).base(), s.end());
}
}} // end of namespace mapnik
#endif // MAPNIK_TRIM_HPP
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