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139 lines
3.5 KiB
C++
139 lines
3.5 KiB
C++
//
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// StringTokenizer.cpp
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//
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// $Id: //poco/svn/Foundation/src/StringTokenizer.cpp#2 $
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//
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// Library: Foundation
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// Package: Core
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// Module: StringTokenizer
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//
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// Copyright (c) 2004-2006, Applied Informatics Software Engineering GmbH.
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// and Contributors.
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//
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// Permission is hereby granted, free of charge, to any person or organization
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// obtaining a copy of the software and accompanying documentation covered by
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// this license (the "Software") to use, reproduce, display, distribute,
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// execute, and transmit the Software, and to prepare derivative works of the
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// Software, and to permit third-parties to whom the Software is furnished to
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// do so, all subject to the following:
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//
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// The copyright notices in the Software and this entire statement, including
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// the above license grant, this restriction and the following disclaimer,
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// must be included in all copies of the Software, in whole or in part, and
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// all derivative works of the Software, unless such copies or derivative
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// works are solely in the form of machine-executable object code generated by
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// a source language processor.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
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// SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
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// FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
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// ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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// DEALINGS IN THE SOFTWARE.
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//
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#include "Poco/StringTokenizer.h"
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#include <cctype>
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namespace Poco {
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StringTokenizer::StringTokenizer(const std::string& str, const std::string& separators, int options)
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{
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std::string::const_iterator it1 = str.begin();
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std::string::const_iterator it2;
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std::string::const_iterator it3;
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std::string::const_iterator end = str.end();
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while (it1 != end)
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{
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if (options & TOK_TRIM)
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{
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while (it1 != end && std::isspace(*it1)) ++it1;
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}
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it2 = it1;
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while (it2 != end && separators.find(*it2) == std::string::npos) ++it2;
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it3 = it2;
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if (it3 != it1 && (options & TOK_TRIM))
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{
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--it3;
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while (it3 != it1 && std::isspace(*it3)) --it3;
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if (!std::isspace(*it3)) ++it3;
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}
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if (options & TOK_IGNORE_EMPTY)
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{
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if (it3 != it1)
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_tokens.push_back(std::string(it1, it3));
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}
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else
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{
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_tokens.push_back(std::string(it1, it3));
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}
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it1 = it2;
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if (it1 != end) ++it1;
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}
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}
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StringTokenizer::~StringTokenizer()
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{
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}
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bool StringTokenizer::has(const std::string& token) const
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{
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Iterator it = begin();
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Iterator stop = end();
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for (; it != stop; ++it)
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if (*it == token) return true;
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return false;
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}
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std::size_t StringTokenizer::find(const std::string& token, std::size_t pos) const
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{
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Iterator it = begin();
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Iterator stop = end();
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for (it += pos; it != stop; ++it)
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if (*it == token) return it - begin();
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throw NotFoundException(token);
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}
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std::size_t StringTokenizer::replace(const std::string& oldToken, const std::string& newToken, std::size_t pos)
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{
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std::size_t count = 0;
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TokenVec::iterator it = _tokens.begin();
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TokenVec::iterator stop = _tokens.end();
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for (it += pos; it != stop; ++it)
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{
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if (*it == oldToken)
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{
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*it = newToken;
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++count;
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}
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}
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return count;
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}
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std::size_t StringTokenizer::count(const std::string& token) const
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{
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std::size_t cnt = 0;
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Iterator it = begin();
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Iterator stop = end();
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for (; it != stop; ++it)
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if (*it == token) ++cnt;
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return cnt;
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}
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} // namespace Poco
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