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98 lines
2.6 KiB
C++
98 lines
2.6 KiB
C++
/*****************************************************************************
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*
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* This file is part of Mapnik (c++ mapping toolkit)
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*
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* Copyright (C) 2016 Artem Pavlenko
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*
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*****************************************************************************/
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#ifndef MAPNIK_TRIM_HPP
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#define MAPNIK_TRIM_HPP
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// stl
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#include <string>
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#include <algorithm>
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namespace mapnik { namespace util {
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/*
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https://github.com/mapnik/mapnik/issues/1633
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faster trim (than boost::trim)
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that intentionally does not respect
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std::locale to avoid overhead in cases
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where the locale is not critical
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*/
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static inline bool not_whitespace(int ch)
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{
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if (ch == ' ' || ch == '\n' || ch == '\r' || ch == '\t') return false;
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return true;
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}
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// trim from start
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static inline std::string & ltrim(std::string & s)
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{
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s.erase(s.begin(), std::find_if(s.begin(), s.end(), not_whitespace));
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return s;
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}
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// trim from end
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static inline std::string & rtrim(std::string & s)
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{
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s.erase(std::find_if(s.rbegin(), s.rend(), not_whitespace).base(), s.end());
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return s;
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}
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// trim from both ends
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static inline void trim(std::string & s)
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{
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ltrim(rtrim(s));
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}
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static inline std::string trim_copy(std::string s)
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{
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return ltrim(rtrim(s));
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}
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static inline bool not_double_quote(int ch)
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{
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if (ch == '"') return false;
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return true;
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}
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static inline void unquote_double(std::string & s)
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{
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s.erase(s.begin(), std::find_if(s.begin(), s.end(), not_double_quote));
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s.erase(std::find_if(s.rbegin(), s.rend(), not_double_quote).base(), s.end());
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}
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static inline bool not_quoted(int ch)
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{
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if (ch == '"' || ch == '\'') return false;
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return true;
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}
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static inline void unquote(std::string & s)
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{
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s.erase(s.begin(), std::find_if(s.begin(), s.end(), not_quoted));
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s.erase(std::find_if(s.rbegin(), s.rend(), not_quoted).base(), s.end());
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}
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}} // end of namespace mapnik
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#endif // MAPNIK_TRIM_HPP
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