Ichthyostega
6bdf0e2cdc
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72 lines
2.2 KiB
C++
72 lines
2.2 KiB
C++
/*
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util.cpp - helper functions implementation
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Copyright (C) CinelerraCV
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2007, Hermann Vosseler <Ichthyostega@web.de>
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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This program 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
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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* *****************************************************/
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#include "common/util.hpp"
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#include <boost/algorithm/string.hpp>
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#include <boost/function.hpp>
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#include <boost/bind.hpp>
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using boost::algorithm::trim_right_copy_if;
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using boost::algorithm::is_any_of;
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using boost::algorithm::is_alnum;
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using boost::algorithm::is_space;
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namespace util
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{
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typedef boost::function<bool(string::value_type)> ChPredicate;
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ChPredicate operator! (ChPredicate p) { return ! boost::bind(p,_1); }
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// character classes used for sanitizing a string
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ChPredicate isValid (is_alnum() || is_any_of("-_.:+$'()@")); ///< characters to be retained
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ChPredicate isPunct (is_space() || is_any_of(",;#*~´`?\\=/&%![]{}")); ///< punctuation to be replaced by '_'
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string
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sanitize (const string& org)
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{
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string res (trim_right_copy_if(org, !isValid ));
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string::iterator j = res.begin();
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string::const_iterator i = org.begin();
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string::const_iterator e = i + (res.length());
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while ( i != e )
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{
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while ( i != e && !isValid (*i) ) ++i;
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while ( i != e && isValid (*i) ) *(j++) = *(i++);
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if ( i != e && isPunct (*i) )
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{
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*j++ = '_';
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do ++i;
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while ( i != e && isPunct (*i));
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}
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}
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res.erase(j,res.end());
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return res;
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}
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} // namespace util
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