95 lines
3.0 KiB
C++
95 lines
3.0 KiB
C++
/* vim: set sw=4 sts=4 et foldmethod=syntax : */
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/*
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* Copyright (c) 2006, 2007 Ciaran McCreesh
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*
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* This file is part of the Paludis package manager. Paludis is free software;
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* you can redistribute it and/or modify it under the terms of the GNU General
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* Public License version 2, as published by the Free Software Foundation.
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*
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* Paludis is distributed in the hope that it will be useful, but WITHOUT ANY
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* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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* FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
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* details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program; if not, write to the Free Software Foundation, Inc., 59 Temple
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* Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include <paludis/util/exception.hh>
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#include <paludis/util/strip.hh>
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#include <paludis/util/stringify.hh>
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namespace paludis
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{
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std::string strip_leading_string(const std::string & s, const std::string & prefix)
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{
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try
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{
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if (0 == s.compare(0, prefix.length(), prefix))
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return s.substr(prefix.length());
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else
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return s;
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}
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catch (const std::exception & e)
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{
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throw InternalError(PALUDIS_HERE, "Caught unexpected exception " +
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stringify(e.what()));
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}
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}
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std::string strip_leading(const std::string & s, const std::string & remove)
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{
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try
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{
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std::string::size_type p(s.find_first_not_of(remove));
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if (std::string::npos == p)
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return std::string();
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else
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return s.substr(p);
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}
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catch (const std::exception & e)
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{
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throw InternalError(PALUDIS_HERE, "Caught unexpected exception " +
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stringify(e.what()));
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}
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}
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std::string strip_trailing_string(const std::string & s, const std::string & suffix)
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{
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try
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{
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if (suffix.length() > s.length())
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return s;
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else if (0 == s.compare(s.length() - suffix.length(), suffix.length(), suffix))
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return s.substr(0, s.length() - suffix.length());
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else
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return s;
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}
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catch (const std::exception & e)
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{
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throw InternalError(PALUDIS_HERE, "Caught unexpected exception " +
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stringify(e.what()) + " with s='" + s + "', suffix='" + suffix + "'");
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}
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}
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std::string strip_trailing(const std::string & s, const std::string & remove)
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{
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try
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{
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std::string::size_type p(s.find_last_not_of(remove));
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if (std::string::npos == p)
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return std::string();
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else
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return s.substr(0, p + 1);
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}
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catch (const std::exception & e)
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{
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throw InternalError(PALUDIS_HERE, "Caught unexpected exception " +
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stringify(e.what()));
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}
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}
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}
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